diff options
Diffstat (limited to 'llvm/test/Transforms/LoopUnswitch')
43 files changed, 0 insertions, 2732 deletions
diff --git a/llvm/test/Transforms/LoopUnswitch/2006-06-13-SingleEntryPHI.ll b/llvm/test/Transforms/LoopUnswitch/2006-06-13-SingleEntryPHI.ll deleted file mode 100644 index c586323b4b8..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/2006-06-13-SingleEntryPHI.ll +++ /dev/null @@ -1,36 +0,0 @@ -; RUN: opt < %s -loop-unswitch -disable-output -; RUN: opt < %s -loop-unswitch -enable-mssa-loop-dependency=true -verify-memoryssa -disable-output - - %struct.BLEND_MAP = type { i16, i16, i16, i32, %struct.BLEND_MAP_ENTRY* } - %struct.BLEND_MAP_ENTRY = type { float, i8, { [5 x float], [4 x i8] } } - %struct.TPATTERN = type { i16, i16, i16, i32, float, float, float, %struct.WARP*, %struct.TPATTERN*, %struct.BLEND_MAP*, { %struct.anon, [4 x i8] } } - %struct.TURB = type { i16, %struct.WARP*, [3 x double], i32, float, float } - %struct.WARP = type { i16, %struct.WARP* } - %struct.anon = type { float, [3 x double] } - -define void @Parse_Pattern() { -entry: - br label %bb1096.outer20 -bb671: ; preds = %cond_true1099 - br label %bb1096.outer23 -bb1096.outer20.loopexit: ; preds = %cond_true1099 - %Local_Turb.0.ph24.lcssa = phi %struct.TURB* [ %Local_Turb.0.ph24, %cond_true1099 ] ; <%struct.TURB*> [#uses=1] - br label %bb1096.outer20 -bb1096.outer20: ; preds = %bb1096.outer20.loopexit, %entry - %Local_Turb.0.ph22 = phi %struct.TURB* [ undef, %entry ], [ %Local_Turb.0.ph24.lcssa, %bb1096.outer20.loopexit ] ; <%struct.TURB*> [#uses=1] - %tmp1098 = icmp eq i32 0, 0 ; <i1> [#uses=1] - br label %bb1096.outer23 -bb1096.outer23: ; preds = %bb1096.outer20, %bb671 - %Local_Turb.0.ph24 = phi %struct.TURB* [ %Local_Turb.0.ph22, %bb1096.outer20 ], [ null, %bb671 ] ; <%struct.TURB*> [#uses=2] - br label %bb1096 -bb1096: ; preds = %cond_true1099, %bb1096.outer23 - br i1 %tmp1098, label %cond_true1099, label %bb1102 -cond_true1099: ; preds = %bb1096 - switch i32 0, label %bb1096.outer20.loopexit [ - i32 161, label %bb671 - i32 359, label %bb1096 - ] -bb1102: ; preds = %bb1096 - %Local_Turb.0.ph24.lcssa1 = phi %struct.TURB* [ %Local_Turb.0.ph24, %bb1096 ] ; <%struct.TURB*> [#uses=0] - ret void -} diff --git a/llvm/test/Transforms/LoopUnswitch/2006-06-27-DeadSwitchCase.ll b/llvm/test/Transforms/LoopUnswitch/2006-06-27-DeadSwitchCase.ll deleted file mode 100644 index 65170b5957b..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/2006-06-27-DeadSwitchCase.ll +++ /dev/null @@ -1,26 +0,0 @@ -; RUN: opt < %s -loop-unswitch -disable-output -; RUN: opt < %s -loop-unswitch -enable-mssa-loop-dependency=true -verify-memoryssa -disable-output - -define void @init_caller_save() { -entry: - br label %cond_true78 -cond_next20: ; preds = %cond_true64 - br label %bb31 -bb31: ; preds = %cond_true64, %cond_true64, %cond_next20 - %iftmp.29.1 = phi i32 [ 0, %cond_next20 ], [ 0, %cond_true64 ], [ 0, %cond_true64 ] ; <i32> [#uses=0] - br label %bb54 -bb54: ; preds = %cond_true78, %bb31 - br i1 false, label %bb75, label %cond_true64 -cond_true64: ; preds = %bb54 - switch i32 %i.0.0, label %cond_next20 [ - i32 17, label %bb31 - i32 18, label %bb31 - ] -bb75: ; preds = %bb54 - %tmp74.0 = add i32 %i.0.0, 1 ; <i32> [#uses=1] - br label %cond_true78 -cond_true78: ; preds = %bb75, %entry - %i.0.0 = phi i32 [ 0, %entry ], [ %tmp74.0, %bb75 ] ; <i32> [#uses=2] - br label %bb54 -} - diff --git a/llvm/test/Transforms/LoopUnswitch/2007-05-09-Unreachable.ll b/llvm/test/Transforms/LoopUnswitch/2007-05-09-Unreachable.ll deleted file mode 100644 index 05f6b8075e1..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/2007-05-09-Unreachable.ll +++ /dev/null @@ -1,29 +0,0 @@ -; PR1333 -; RUN: opt < %s -loop-unswitch -disable-output -; RUN: opt < %s -loop-unswitch -enable-mssa-loop-dependency=true -verify-memoryssa -disable-output - -target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64" -target triple = "i686-pc-linux-gnu" - %struct.ada__streams__root_stream_type = type { %struct.ada__tags__dispatch_table* } - %struct.ada__tags__dispatch_table = type { [1 x i8*] } - %struct.quotes__T173s = type { i8, %struct.quotes__T173s__T174s, [2 x [1 x double]], [2 x i16], i64, i8 } - %struct.quotes__T173s__T174s = type { i8, i8, i8, i16, i16, [2 x [1 x double]] } - -define void @quotes__write_quote() { -entry: - %tmp606.i = icmp eq i32 0, 0 ; <i1> [#uses=1] - br label %bb -bb: ; preds = %cond_next73, %bb, %entry - br i1 false, label %bb51, label %bb -bb51: ; preds = %cond_next73, %bb - br i1 %tmp606.i, label %quotes__bid_ask_depth_offset_matrices__get_price.exit, label %cond_true.i -cond_true.i: ; preds = %bb51 - unreachable -quotes__bid_ask_depth_offset_matrices__get_price.exit: ; preds = %bb51 - br i1 false, label %cond_next73, label %cond_true72 -cond_true72: ; preds = %quotes__bid_ask_depth_offset_matrices__get_price.exit - unreachable -cond_next73: ; preds = %quotes__bid_ask_depth_offset_matrices__get_price.exit - br i1 false, label %bb, label %bb51 -} - diff --git a/llvm/test/Transforms/LoopUnswitch/2007-05-09-tl.ll b/llvm/test/Transforms/LoopUnswitch/2007-05-09-tl.ll deleted file mode 100644 index 75171d43a93..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/2007-05-09-tl.ll +++ /dev/null @@ -1,96 +0,0 @@ -; RUN: opt < %s -loop-unswitch -disable-output -; RUN: opt < %s -loop-unswitch -enable-mssa-loop-dependency=true -verify-memoryssa -disable-output -; PR1333 - -define void @pp_cxx_expression() { -entry: - %tmp6 = lshr i32 0, 24 ; <i32> [#uses=1] - br label %tailrecurse - -tailrecurse: ; preds = %tailrecurse, %tailrecurse, %entry - switch i32 %tmp6, label %bb96 [ - i32 24, label %bb10 - i32 25, label %bb10 - i32 28, label %bb10 - i32 29, label %bb48 - i32 31, label %bb48 - i32 32, label %bb48 - i32 33, label %bb48 - i32 34, label %bb48 - i32 36, label %bb15 - i32 51, label %bb89 - i32 52, label %bb89 - i32 54, label %bb83 - i32 57, label %bb59 - i32 63, label %bb80 - i32 64, label %bb80 - i32 68, label %bb80 - i32 169, label %bb75 - i32 170, label %bb19 - i32 171, label %bb63 - i32 172, label %bb63 - i32 173, label %bb67 - i32 174, label %bb67 - i32 175, label %bb19 - i32 176, label %bb75 - i32 178, label %bb59 - i32 179, label %bb89 - i32 180, label %bb59 - i32 182, label %bb48 - i32 183, label %bb48 - i32 184, label %bb48 - i32 185, label %bb48 - i32 186, label %bb48 - i32 195, label %bb48 - i32 196, label %bb59 - i32 197, label %bb89 - i32 198, label %bb70 - i32 199, label %bb59 - i32 200, label %bb59 - i32 201, label %bb59 - i32 202, label %bb59 - i32 203, label %bb75 - i32 204, label %bb59 - i32 205, label %tailrecurse - i32 210, label %tailrecurse - ] - -bb10: ; preds = %tailrecurse, %tailrecurse, %tailrecurse - ret void - -bb15: ; preds = %tailrecurse - ret void - -bb19: ; preds = %tailrecurse, %tailrecurse - ret void - -bb48: ; preds = %tailrecurse, %tailrecurse, %tailrecurse, %tailrecurse, %tailrecurse, %tailrecurse, %tailrecurse, %tailrecurse, %tailrecurse, %tailrecurse, %tailrecurse - ret void - -bb59: ; preds = %tailrecurse, %tailrecurse, %tailrecurse, %tailrecurse, %tailrecurse, %tailrecurse, %tailrecurse, %tailrecurse, %tailrecurse - ret void - -bb63: ; preds = %tailrecurse, %tailrecurse - ret void - -bb67: ; preds = %tailrecurse, %tailrecurse - ret void - -bb70: ; preds = %tailrecurse - ret void - -bb75: ; preds = %tailrecurse, %tailrecurse, %tailrecurse - ret void - -bb80: ; preds = %tailrecurse, %tailrecurse, %tailrecurse - ret void - -bb83: ; preds = %tailrecurse - ret void - -bb89: ; preds = %tailrecurse, %tailrecurse, %tailrecurse, %tailrecurse - ret void - -bb96: ; preds = %tailrecurse - ret void -} diff --git a/llvm/test/Transforms/LoopUnswitch/2007-07-12-ExitDomInfo.ll b/llvm/test/Transforms/LoopUnswitch/2007-07-12-ExitDomInfo.ll deleted file mode 100644 index a2da514727b..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/2007-07-12-ExitDomInfo.ll +++ /dev/null @@ -1,46 +0,0 @@ -; RUN: opt < %s -loop-unswitch -instcombine -disable-output -; RUN: opt < %s -loop-unswitch -enable-mssa-loop-dependency=true -verify-memoryssa -instcombine -disable-output - -@str3 = external constant [3 x i8] ; <[3 x i8]*> [#uses=1] - -define i32 @stringSearch_Clib(i32 %count) { -entry: - %ttmp25 = icmp sgt i32 %count, 0 ; <i1> [#uses=1] - br i1 %ttmp25, label %bb36.preheader, label %bb44 - -bb36.preheader: ; preds = %entry - %ttmp33 = icmp slt i32 0, 250 ; <i1> [#uses=1] - br label %bb36.outer - -bb36.outer: ; preds = %bb41, %bb36.preheader - br i1 %ttmp33, label %bb.nph, label %bb41 - -bb.nph: ; preds = %bb36.outer - %ttmp8 = icmp eq i8* null, null ; <i1> [#uses=1] - %ttmp6 = icmp eq i8* null, null ; <i1> [#uses=1] - %tmp31 = call i32 @strcspn( i8* null, i8* getelementptr ([3 x i8], [3 x i8]* @str3, i64 0, i64 0) ) ; <i32> [#uses=1] - br i1 %ttmp8, label %cond_next, label %cond_true - -cond_true: ; preds = %bb.nph - ret i32 0 - -cond_next: ; preds = %bb.nph - br i1 %ttmp6, label %cond_next28, label %cond_true20 - -cond_true20: ; preds = %cond_next - ret i32 0 - -cond_next28: ; preds = %cond_next - %tmp33 = add i32 %tmp31, 0 ; <i32> [#uses=1] - br label %bb41 - -bb41: ; preds = %cond_next28, %bb36.outer - %c.2.lcssa = phi i32 [ 0, %bb36.outer ], [ %tmp33, %cond_next28 ] ; <i32> [#uses=1] - br i1 false, label %bb36.outer, label %bb44 - -bb44: ; preds = %bb41, %entry - %c.01.1 = phi i32 [ 0, %entry ], [ %c.2.lcssa, %bb41 ] ; <i32> [#uses=1] - ret i32 %c.01.1 -} - -declare i32 @strcspn(i8*, i8*) diff --git a/llvm/test/Transforms/LoopUnswitch/2007-07-13-DomInfo.ll b/llvm/test/Transforms/LoopUnswitch/2007-07-13-DomInfo.ll deleted file mode 100644 index 6b837d8ee06..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/2007-07-13-DomInfo.ll +++ /dev/null @@ -1,28 +0,0 @@ -; RUN: opt < %s -loop-unswitch -disable-output -; RUN: opt < %s -loop-unswitch -enable-mssa-loop-dependency=true -verify-memoryssa -disable-output - -define i32 @main(i32 %argc, i8** %argv) { -entry: - %tmp1785365 = icmp ult i32 0, 100 ; <i1> [#uses=1] - br label %bb - -bb: ; preds = %cond_true, %entry - br i1 false, label %cond_true, label %cond_next - -cond_true: ; preds = %bb - br i1 %tmp1785365, label %bb, label %bb1788 - -cond_next: ; preds = %bb - %iftmp.1.0 = select i1 false, i32 0, i32 0 ; <i32> [#uses=1] - br i1 false, label %cond_true47, label %cond_next74 - -cond_true47: ; preds = %cond_next - %tmp53 = urem i32 %iftmp.1.0, 0 ; <i32> [#uses=0] - ret i32 0 - -cond_next74: ; preds = %cond_next - ret i32 0 - -bb1788: ; preds = %cond_true - ret i32 0 -} diff --git a/llvm/test/Transforms/LoopUnswitch/2007-07-18-DomInfo.ll b/llvm/test/Transforms/LoopUnswitch/2007-07-18-DomInfo.ll deleted file mode 100644 index 6414ef1eb57..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/2007-07-18-DomInfo.ll +++ /dev/null @@ -1,67 +0,0 @@ -; RUN: opt < %s -loop-unswitch -disable-output -; RUN: opt < %s -loop-unswitch -enable-mssa-loop-dependency=true -verify-memoryssa -disable-output -; PR1559 - -target triple = "i686-pc-linux-gnu" - %struct.re_pattern_buffer = type { i8*, i32, i32, i32, i8*, i8*, i32, i8 } - -define fastcc i32 @byte_regex_compile(i8* %pattern, i32 %size, i32 %syntax, %struct.re_pattern_buffer* %bufp) { -entry: - br i1 false, label %bb147, label %cond_next123 - -cond_next123: ; preds = %entry - ret i32 0 - -bb147: ; preds = %entry - switch i32 0, label %normal_char [ - i32 91, label %bb1734 - i32 92, label %bb5700 - ] - -bb1734: ; preds = %bb147 - br label %bb1855.outer.outer - -cond_true1831: ; preds = %bb1855.outer - br i1 %tmp1837, label %cond_next1844, label %cond_true1840 - -cond_true1840: ; preds = %cond_true1831 - ret i32 0 - -cond_next1844: ; preds = %cond_true1831 - br i1 false, label %bb1855.outer, label %cond_true1849 - -cond_true1849: ; preds = %cond_next1844 - br label %bb1855.outer.outer - -bb1855.outer.outer: ; preds = %cond_true1849, %bb1734 - %b.10.ph.ph = phi i8* [ null, %cond_true1849 ], [ null, %bb1734 ] ; <i8*> [#uses=1] - br label %bb1855.outer - -bb1855.outer: ; preds = %bb1855.outer.outer, %cond_next1844 - %b.10.ph = phi i8* [ null, %cond_next1844 ], [ %b.10.ph.ph, %bb1855.outer.outer ] ; <i8*> [#uses=1] - %tmp1837 = icmp eq i8* null, null ; <i1> [#uses=2] - br i1 false, label %cond_true1831, label %cond_next1915 - -cond_next1915: ; preds = %cond_next1961, %bb1855.outer - store i8* null, i8** null - br i1 %tmp1837, label %cond_next1929, label %cond_true1923 - -cond_true1923: ; preds = %cond_next1915 - ret i32 0 - -cond_next1929: ; preds = %cond_next1915 - br i1 false, label %cond_next1961, label %cond_next2009 - -cond_next1961: ; preds = %cond_next1929 - %tmp1992 = getelementptr i8, i8* %b.10.ph, i32 0 ; <i8*> [#uses=0] - br label %cond_next1915 - -cond_next2009: ; preds = %cond_next1929 - ret i32 0 - -bb5700: ; preds = %bb147 - ret i32 0 - -normal_char: ; preds = %bb147 - ret i32 0 -} diff --git a/llvm/test/Transforms/LoopUnswitch/2007-08-01-Dom.ll b/llvm/test/Transforms/LoopUnswitch/2007-08-01-Dom.ll deleted file mode 100644 index fc92579933b..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/2007-08-01-Dom.ll +++ /dev/null @@ -1,30 +0,0 @@ -; RUN: opt < %s -licm -loop-unswitch -disable-output -; PR 1589 - - %struct.QBasicAtomic = type { i32 } - -define void @_ZNK5QDate9addMonthsEi(%struct.QBasicAtomic* sret %agg.result, %struct.QBasicAtomic* %this, i32 %nmonths) { -entry: - br label %cond_true90 - -bb16: ; preds = %cond_true90 - br i1 false, label %bb93, label %cond_true90 - -bb45: ; preds = %cond_true90 - br i1 false, label %bb53, label %bb58 - -bb53: ; preds = %bb45 - br i1 false, label %bb93, label %cond_true90 - -bb58: ; preds = %bb45 - store i32 0, i32* null, align 4 - br i1 false, label %cond_true90, label %bb93 - -cond_true90: ; preds = %bb58, %bb53, %bb16, %entry - %nmonths_addr.016.1 = phi i32 [ %nmonths, %entry ], [ 0, %bb16 ], [ 0, %bb53 ], [ %nmonths_addr.016.1, %bb58 ] ; <i32> [#uses=2] - %tmp14 = icmp slt i32 %nmonths_addr.016.1, -11 ; <i1> [#uses=1] - br i1 %tmp14, label %bb16, label %bb45 - -bb93: ; preds = %bb58, %bb53, %bb16 - ret void -} diff --git a/llvm/test/Transforms/LoopUnswitch/2007-08-01-LCSSA.ll b/llvm/test/Transforms/LoopUnswitch/2007-08-01-LCSSA.ll deleted file mode 100644 index 547c633f9da..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/2007-08-01-LCSSA.ll +++ /dev/null @@ -1,56 +0,0 @@ -; RUN: opt < %s -loop-unswitch -instcombine -disable-output -; RUN: opt < %s -loop-unswitch -enable-mssa-loop-dependency=true -verify-memoryssa -instcombine -disable-output - %struct.ClassDef = type { %struct.QByteArray, %struct.QByteArray, %"struct.QList<ArgumentDef>", %"struct.QList<ArgumentDef>", i8, i8, %"struct.QList<ArgumentDef>", %"struct.QList<ArgumentDef>", %"struct.QList<ArgumentDef>", %"struct.QList<ArgumentDef>", %"struct.QList<ArgumentDef>", %"struct.QList<ArgumentDef>", %"struct.QMap<QByteArray,QByteArray>", %"struct.QList<ArgumentDef>", %"struct.QMap<QByteArray,QByteArray>", i32, i32 } - %struct.FILE = type { i32, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, %struct._IO_marker*, %struct.FILE*, i32, i32, i32, i16, i8, [1 x i8], i8*, i64, i8*, i8*, i8*, i8*, i32, i32, [40 x i8] } - %struct.Generator = type { %struct.FILE*, %struct.ClassDef*, %"struct.QList<ArgumentDef>", %struct.QByteArray, %"struct.QList<ArgumentDef>" } - %struct.QBasicAtomic = type { i32 } - %struct.QByteArray = type { %"struct.QByteArray::Data"* } - %"struct.QByteArray::Data" = type { %struct.QBasicAtomic, i32, i32, i8*, [1 x i8] } - %"struct.QList<ArgumentDef>" = type { %"struct.QList<ArgumentDef>::._19" } - %"struct.QList<ArgumentDef>::._19" = type { %struct.QListData } - %struct.QListData = type { %"struct.QListData::Data"* } - %"struct.QListData::Data" = type { %struct.QBasicAtomic, i32, i32, i32, i8, [1 x i8*] } - %"struct.QMap<QByteArray,QByteArray>" = type { %"struct.QMap<QByteArray,QByteArray>::._56" } - %"struct.QMap<QByteArray,QByteArray>::._56" = type { %struct.QMapData* } - %struct.QMapData = type { %struct.QMapData*, [12 x %struct.QMapData*], %struct.QBasicAtomic, i32, i32, i32, i8 } - %struct._IO_marker = type { %struct._IO_marker*, %struct.FILE*, i32 } -@.str9 = external constant [1 x i8] ; <[1 x i8]*> [#uses=1] - -declare i32 @strcmp(i8*, i8*) - -define i32 @_ZN9Generator6strregEPKc(%struct.Generator* %this, i8* %s) { -entry: - %s_addr.0 = select i1 false, i8* getelementptr ([1 x i8], [1 x i8]* @.str9, i32 0, i32 0), i8* %s ; <i8*> [#uses=2] - %tmp122 = icmp eq i8* %s_addr.0, null ; <i1> [#uses=1] - br label %bb184 - -bb55: ; preds = %bb184 - ret i32 0 - -bb88: ; preds = %bb184 - br i1 %tmp122, label %bb154, label %bb128 - -bb128: ; preds = %bb88 - %tmp138 = call i32 @strcmp( i8* null, i8* %s_addr.0 ) ; <i32> [#uses=1] - %iftmp.37.0.in4 = icmp eq i32 %tmp138, 0 ; <i1> [#uses=1] - br i1 %iftmp.37.0.in4, label %bb250, label %bb166 - -bb154: ; preds = %bb88 - br i1 false, label %bb250, label %bb166 - -bb166: ; preds = %bb154, %bb128 - %tmp175 = add i32 %idx.0, 1 ; <i32> [#uses=1] - %tmp177 = add i32 %tmp175, 0 ; <i32> [#uses=1] - %tmp181 = add i32 %tmp177, 0 ; <i32> [#uses=1] - %tmp183 = add i32 %i33.0, 1 ; <i32> [#uses=1] - br label %bb184 - -bb184: ; preds = %bb166, %entry - %i33.0 = phi i32 [ 0, %entry ], [ %tmp183, %bb166 ] ; <i32> [#uses=2] - %idx.0 = phi i32 [ 0, %entry ], [ %tmp181, %bb166 ] ; <i32> [#uses=2] - %tmp49 = icmp slt i32 %i33.0, 0 ; <i1> [#uses=1] - br i1 %tmp49, label %bb88, label %bb55 - -bb250: ; preds = %bb154, %bb128 - ret i32 %idx.0 -} diff --git a/llvm/test/Transforms/LoopUnswitch/2007-10-04-DomFrontier.ll b/llvm/test/Transforms/LoopUnswitch/2007-10-04-DomFrontier.ll deleted file mode 100644 index efbb7619591..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/2007-10-04-DomFrontier.ll +++ /dev/null @@ -1,29 +0,0 @@ -; RUN: opt < %s -licm -loop-unroll -disable-output - -@resonant = external global i32 ; <i32*> [#uses=2] - -define void @weightadj() { -entry: - br label %bb - -bb: ; preds = %bb158, %entry - store i32 0, i32* @resonant, align 4 - br i1 false, label %g.exit, label %bb158 - -g.exit: ; preds = %bb68, %bb - br i1 false, label %bb68, label %cond_true - -cond_true: ; preds = %g.exit - store i32 1, i32* @resonant, align 4 - br label %bb68 - -bb68: ; preds = %cond_true, %g.exit - %tmp71 = icmp slt i32 0, 0 ; <i1> [#uses=1] - br i1 %tmp71, label %g.exit, label %bb158 - -bb158: ; preds = %bb68, %bb - br i1 false, label %bb, label %return - -return: ; preds = %bb158 - ret void -} diff --git a/llvm/test/Transforms/LoopUnswitch/2008-06-02-DomInfo.ll b/llvm/test/Transforms/LoopUnswitch/2008-06-02-DomInfo.ll deleted file mode 100644 index 165156657d7..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/2008-06-02-DomInfo.ll +++ /dev/null @@ -1,27 +0,0 @@ -; RUN: opt < %s -loop-unswitch -instcombine -gvn -disable-output -; RUN: opt < %s -loop-unswitch -instcombine -gvn -enable-mssa-loop-dependency=true -verify-memoryssa -disable-output -; PR2372 -target triple = "i386-pc-linux-gnu" - -define i32 @func_3(i16 signext %p_5, i16 signext %p_6) nounwind { -entry: - %tmp3 = icmp eq i16 %p_5, 0 ; <i1> [#uses=1] - %tmp1314 = sext i16 %p_6 to i32 ; <i32> [#uses=1] - %tmp28 = icmp ugt i32 %tmp1314, 3 ; <i1> [#uses=1] - %bothcond = or i1 %tmp28, false ; <i1> [#uses=1] - br label %bb -bb: ; preds = %bb54, %entry - br i1 %tmp3, label %bb54, label %bb5 -bb5: ; preds = %bb - br i1 %bothcond, label %bb54, label %bb31 -bb31: ; preds = %bb5 - br label %bb54 -bb54: ; preds = %bb31, %bb5, %bb - br i1 false, label %bb64, label %bb -bb64: ; preds = %bb54 - %tmp6566 = sext i16 %p_6 to i32 ; <i32> [#uses=1] - %tmp68 = tail call i32 (...) @func_18( i32 1, i32 %tmp6566, i32 1 ) nounwind ; <i32> [#uses=0] - ret i32 undef -} - -declare i32 @func_18(...) diff --git a/llvm/test/Transforms/LoopUnswitch/2008-06-17-DomFrontier.ll b/llvm/test/Transforms/LoopUnswitch/2008-06-17-DomFrontier.ll deleted file mode 100644 index d606ea9c6d2..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/2008-06-17-DomFrontier.ll +++ /dev/null @@ -1,22 +0,0 @@ -; RUN: opt < %s -licm -loop-unswitch -disable-output -@g_56 = external global i16 ; <i16*> [#uses=2] - -define i32 @func_67(i32 %p_68, i8 signext %p_69, i8 signext %p_71) nounwind { -entry: - br label %bb -bb: ; preds = %bb44, %entry - br label %bb3 -bb3: ; preds = %bb36, %bb - %bothcond = or i1 false, false ; <i1> [#uses=1] - br i1 %bothcond, label %bb29, label %bb19 -bb19: ; preds = %bb3 - br i1 false, label %bb36, label %bb29 -bb29: ; preds = %bb19, %bb3 - ret i32 0 -bb36: ; preds = %bb19 - store i16 0, i16* @g_56, align 2 - br i1 false, label %bb44, label %bb3 -bb44: ; preds = %bb44, %bb36 - %tmp46 = load i16, i16* @g_56, align 2 ; <i16> [#uses=0] - br i1 false, label %bb, label %bb44 -} diff --git a/llvm/test/Transforms/LoopUnswitch/2008-11-03-Invariant.ll b/llvm/test/Transforms/LoopUnswitch/2008-11-03-Invariant.ll deleted file mode 100644 index 22d6acde84c..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/2008-11-03-Invariant.ll +++ /dev/null @@ -1,42 +0,0 @@ -; REQUIRES: asserts -; RUN: opt < %s -loop-unswitch -stats -disable-output 2>&1 | FileCheck %s -; RUN: opt < %s -loop-unswitch -enable-mssa-loop-dependency=true -verify-memoryssa -stats -disable-output 2>&1 | FileCheck %s -; PR 3170 - -define i32 @a(i32 %x, i32 %y) nounwind { -; CHECK: 1 loop-unswitch - Number of branches unswitched -; CHECK-NOT: Number of branches unswitched - -entry: - %0 = icmp ult i32 0, %y ; <i1> [#uses=1] - br i1 %0, label %bb.nph, label %bb4 - -bb.nph: ; preds = %entry - %1 = icmp eq i32 %x, 0 ; <i1> [#uses=1] - br label %bb - -bb: ; preds = %bb.nph, %bb3 - %i.01 = phi i32 [ %3, %bb3 ], [ 0, %bb.nph ] ; <i32> [#uses=1] - br i1 %1, label %bb2, label %bb1 - -bb1: ; preds = %bb - %2 = tail call i32 (...) @b() nounwind ; <i32> [#uses=0] - br label %bb2 - -bb2: ; preds = %bb, %bb1 - %3 = add i32 %i.01, 1 ; <i32> [#uses=2] - br label %bb3 - -bb3: ; preds = %bb2 - %i.0 = phi i32 [ %3, %bb2 ] ; <i32> [#uses=1] - %4 = icmp ult i32 %i.0, %y ; <i1> [#uses=1] - br i1 %4, label %bb, label %bb3.bb4_crit_edge - -bb3.bb4_crit_edge: ; preds = %bb3 - br label %bb4 - -bb4: ; preds = %bb3.bb4_crit_edge, %entry - ret i32 0 -} - -declare i32 @b(...) diff --git a/llvm/test/Transforms/LoopUnswitch/2010-11-18-LCSSA.ll b/llvm/test/Transforms/LoopUnswitch/2010-11-18-LCSSA.ll deleted file mode 100644 index 55012720f6b..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/2010-11-18-LCSSA.ll +++ /dev/null @@ -1,29 +0,0 @@ -; RUN: opt < %s -loop-unswitch -; RUN: opt < %s -loop-unswitch -enable-mssa-loop-dependency=true -verify-memoryssa -; PR8622 -@g_38 = external global i32, align 4 - -define void @func_67(i32 %p_68.coerce) nounwind { -entry: - br i1 true, label %for.end12, label %bb.nph - -bb.nph: ; preds = %entry - %g_38.promoted = load i32, i32* @g_38 - br label %for.body - -for.body: ; preds = %for.cond, %bb.nph - %tobool.i = icmp eq i32 %p_68.coerce, 1 - %xor4.i = xor i32 %p_68.coerce, 1 - %call1 = select i1 %tobool.i, i32 0, i32 %xor4.i - br label %for.cond - -for.cond: ; preds = %for.body - br i1 true, label %for.cond.for.end12_crit_edge, label %for.body - -for.cond.for.end12_crit_edge: ; preds = %for.cond - store i32 %call1, i32* @g_38 - br label %for.end12 - -for.end12: ; preds = %for.cond.for.end12_crit_edge, %entry - ret void -} diff --git a/llvm/test/Transforms/LoopUnswitch/2011-06-02-CritSwitch.ll b/llvm/test/Transforms/LoopUnswitch/2011-06-02-CritSwitch.ll deleted file mode 100644 index 609520064a7..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/2011-06-02-CritSwitch.ll +++ /dev/null @@ -1,28 +0,0 @@ -; RUN: opt -loop-unswitch -disable-output < %s -; PR10031 - -define i32 @test(i32 %command) { -entry: - br label %tailrecurse - -tailrecurse: ; preds = %if.then14, %tailrecurse, %entry - br i1 undef, label %if.then, label %tailrecurse - -if.then: ; preds = %tailrecurse - switch i32 %command, label %sw.bb [ - i32 2, label %land.lhs.true - i32 0, label %land.lhs.true - ] - -land.lhs.true: ; preds = %if.then, %if.then - br i1 undef, label %sw.bb, label %if.then14 - -if.then14: ; preds = %land.lhs.true - switch i32 %command, label %tailrecurse [ - i32 0, label %sw.bb - i32 1, label %sw.bb - ] - -sw.bb: ; preds = %if.then14 - unreachable -} diff --git a/llvm/test/Transforms/LoopUnswitch/2011-09-26-EHCrash.ll b/llvm/test/Transforms/LoopUnswitch/2011-09-26-EHCrash.ll deleted file mode 100644 index cdb55f57472..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/2011-09-26-EHCrash.ll +++ /dev/null @@ -1,64 +0,0 @@ -; RUN: opt < %s -sroa -loop-unswitch -disable-output -; RUN: opt < %s -sroa -loop-unswitch -enable-mssa-loop-dependency=true -verify-memoryssa -disable-output -; PR11016 -target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" -target triple = "x86_64-apple-macosx10.7.2" - -%class.MyContainer.1.3.19.29 = type { [6 x %class.MyMemVarClass.0.2.18.28*] } -%class.MyMemVarClass.0.2.18.28 = type { i32 } - -define void @_ZN11MyContainer1fEi(%class.MyContainer.1.3.19.29* %this, i32 %doit) uwtable ssp align 2 personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { -entry: - br label %for.cond - -for.cond: ; preds = %for.inc, %entry - %inc1 = phi i32 [ %inc, %for.inc ], [ 0, %entry ] - %conv = sext i32 %inc1 to i64 - %cmp = icmp ult i64 %conv, 6 - br i1 %cmp, label %for.body, label %for.end - -for.body: ; preds = %for.cond - %tobool = icmp ne i32 %doit, 0 - br i1 %tobool, label %for.inc, label %if.then - -if.then: ; preds = %for.body - %idxprom = sext i32 %inc1 to i64 - %array_ = getelementptr inbounds %class.MyContainer.1.3.19.29, %class.MyContainer.1.3.19.29* %this, i32 0, i32 0 - %arrayidx = getelementptr inbounds [6 x %class.MyMemVarClass.0.2.18.28*], [6 x %class.MyMemVarClass.0.2.18.28*]* %array_, i32 0, i64 %idxprom - %tmp4 = load %class.MyMemVarClass.0.2.18.28*, %class.MyMemVarClass.0.2.18.28** %arrayidx, align 8 - %isnull = icmp eq %class.MyMemVarClass.0.2.18.28* %tmp4, null - br i1 %isnull, label %for.inc, label %delete.notnull - -delete.notnull: ; preds = %if.then - invoke void @_ZN13MyMemVarClassD1Ev(%class.MyMemVarClass.0.2.18.28* %tmp4) - to label %invoke.cont unwind label %lpad - -invoke.cont: ; preds = %delete.notnull - %0 = bitcast %class.MyMemVarClass.0.2.18.28* %tmp4 to i8* - call void @_ZdlPv(i8* %0) nounwind - br label %for.inc - -lpad: ; preds = %delete.notnull - %1 = landingpad { i8*, i32 } - cleanup - %2 = extractvalue { i8*, i32 } %1, 0 - %3 = extractvalue { i8*, i32 } %1, 1 - %4 = bitcast %class.MyMemVarClass.0.2.18.28* %tmp4 to i8* - call void @_ZdlPv(i8* %4) nounwind - %lpad.val = insertvalue { i8*, i32 } undef, i8* %2, 0 - %lpad.val7 = insertvalue { i8*, i32 } %lpad.val, i32 %3, 1 - resume { i8*, i32 } %lpad.val7 - -for.inc: ; preds = %invoke.cont, %if.then, %for.body - %inc = add nsw i32 %inc1, 1 - br label %for.cond - -for.end: ; preds = %for.cond - ret void -} - -declare void @_ZN13MyMemVarClassD1Ev(%class.MyMemVarClass.0.2.18.28*) - -declare i32 @__gxx_personality_v0(...) - -declare void @_ZdlPv(i8*) nounwind diff --git a/llvm/test/Transforms/LoopUnswitch/2011-11-18-SimpleSwitch.ll b/llvm/test/Transforms/LoopUnswitch/2011-11-18-SimpleSwitch.ll deleted file mode 100644 index 2db66aca089..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/2011-11-18-SimpleSwitch.ll +++ /dev/null @@ -1,95 +0,0 @@ -; REQUIRES: asserts -; RUN: opt -loop-unswitch -disable-output -stats -info-output-file - < %s | FileCheck --check-prefix=STATS %s -; RUN: opt -S -loop-unswitch -verify-loop-info -verify-dom-info < %s | FileCheck %s -; RUN: opt -S -loop-unswitch -verify-loop-info -verify-dom-info -enable-mssa-loop-dependency=true -verify-memoryssa < %s | FileCheck %s - -; STATS: 2 loop-unswitch - Number of switches unswitched - -; CHECK: %1 = icmp eq i32 %c, 1 -; CHECK-NEXT: br i1 %1, label %.split.us, label %..split_crit_edge - -; CHECK: ..split_crit_edge: ; preds = %0 -; CHECK-NEXT: br label %.split - -; CHECK: .split.us: ; preds = %0 -; CHECK-NEXT: br label %loop_begin.us - -; CHECK: loop_begin.us: ; preds = %loop_begin.backedge.us, %.split.us -; CHECK-NEXT: %var_val.us = load i32, i32* %var -; CHECK-NEXT: switch i32 1, label %default.us-lcssa.us [ -; CHECK-NEXT: i32 1, label %inc.us - -; CHECK: inc.us: ; preds = %loop_begin.us -; CHECK-NEXT: call void @incf() [[NOR_NUW:#[0-9]+]] -; CHECK-NEXT: br label %loop_begin.backedge.us - -; CHECK: .split: ; preds = %..split_crit_edge -; CHECK-NEXT: %2 = icmp eq i32 %c, 2 -; CHECK-NEXT: br i1 %2, label %.split.split.us, label %.split..split.split_crit_edge - -; CHECK: .split..split.split_crit_edge: ; preds = %.split -; CHECK-NEXT: br label %.split.split - -; CHECK: .split.split.us: ; preds = %.split -; CHECK-NEXT: br label %loop_begin.us1 - -; CHECK: loop_begin.us1: ; preds = %loop_begin.backedge.us5, %.split.split.us -; CHECK-NEXT: %var_val.us2 = load i32, i32* %var -; CHECK-NEXT: switch i32 2, label %default.us-lcssa.us-lcssa.us [ -; CHECK-NEXT: i32 1, label %inc.us4 -; CHECK-NEXT: i32 2, label %dec.us3 -; CHECK-NEXT: ] - -; CHECK: dec.us3: ; preds = %loop_begin.us1 -; CHECK-NEXT: call void @decf() [[NOR_NUW]] -; CHECK-NEXT: br label %loop_begin.backedge.us5 - -; CHECK: .split.split: ; preds = %.split..split.split_crit_edge -; CHECK-NEXT: br label %loop_begin - -; CHECK: loop_begin: ; preds = %loop_begin.backedge, %.split.split -; CHECK-NEXT: %var_val = load i32, i32* %var -; CHECK-NEXT: switch i32 %c, label %default.us-lcssa.us-lcssa [ -; CHECK-NEXT: i32 1, label %inc -; CHECK-NEXT: i32 2, label %dec -; CHECK-NEXT: ] - -; CHECK: inc: ; preds = %loop_begin -; CHECK-NEXT: br i1 true, label %us-unreachable.us-lcssa, label %inc.split - -; CHECK: dec: ; preds = %loop_begin -; CHECK-NEXT: br i1 true, label %us-unreachable6, label %dec.split - -define i32 @test(i32* %var) { - %mem = alloca i32 - store i32 2, i32* %mem - %c = load i32, i32* %mem - - br label %loop_begin - -loop_begin: - - %var_val = load i32, i32* %var - - switch i32 %c, label %default [ - i32 1, label %inc - i32 2, label %dec - ] - -inc: - call void @incf() noreturn nounwind - br label %loop_begin -dec: - call void @decf() noreturn nounwind - br label %loop_begin -default: - br label %loop_exit -loop_exit: - ret i32 0 -} - -declare void @incf() noreturn -declare void @decf() noreturn - -; CHECK: attributes #0 = { noreturn } -; CHECK: attributes [[NOR_NUW]] = { noreturn nounwind } diff --git a/llvm/test/Transforms/LoopUnswitch/2011-11-18-TwoSwitches-Threshold.ll b/llvm/test/Transforms/LoopUnswitch/2011-11-18-TwoSwitches-Threshold.ll deleted file mode 100644 index 012916cc243..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/2011-11-18-TwoSwitches-Threshold.ll +++ /dev/null @@ -1,88 +0,0 @@ -; REQUIRES: asserts -; RUN: opt -loop-unswitch -loop-unswitch-threshold 13 -disable-output -stats -info-output-file - < %s | FileCheck --check-prefix=STATS %s -; RUN: opt -S -loop-unswitch -loop-unswitch-threshold 13 -verify-loop-info -verify-dom-info < %s | FileCheck %s -; RUN: opt -S -loop-unswitch -loop-unswitch-threshold 13 -verify-loop-info -verify-dom-info -enable-mssa-loop-dependency=true -verify-memoryssa < %s | FileCheck %s - -; STATS: 1 loop-unswitch - Number of switches unswitched - -; ModuleID = '../llvm/test/Transforms/LoopUnswitch/2011-11-18-TwoSwitches.ll' - -; CHECK: %1 = icmp eq i32 %c, 1 -; CHECK-NEXT: br i1 %1, label %.split.us, label %..split_crit_edge - -; CHECK: ..split_crit_edge: ; preds = %0 -; CHECK-NEXT: br label %.split - -; CHECK: .split.us: ; preds = %0 -; CHECK-NEXT: br label %loop_begin.us - -; CHECK: loop_begin.us: ; preds = %loop_begin.backedge.us, %.split.us -; CHECK: switch i32 1, label %second_switch.us [ -; CHECK-NEXT: i32 1, label %inc.us - -; CHECK: second_switch.us: ; preds = %loop_begin.us -; CHECK-NEXT: switch i32 %d, label %default.us [ -; CHECK-NEXT: i32 1, label %inc.us -; CHECK-NEXT: ] - -; CHECK: inc.us: ; preds = %second_switch.us, %loop_begin.us -; CHECK-NEXT: call void @incf() [[NOR_NUW:#[0-9]+]] -; CHECK-NEXT: br label %loop_begin.backedge.us - -; CHECK: .split: ; preds = %..split_crit_edge -; CHECK-NEXT: br label %loop_begin - -; CHECK: loop_begin: ; preds = %loop_begin.backedge, %.split -; CHECK: switch i32 %c, label %second_switch [ -; CHECK-NEXT: i32 1, label %loop_begin.inc_crit_edge -; CHECK-NEXT: ] - -; CHECK: loop_begin.inc_crit_edge: ; preds = %loop_begin -; CHECK-NEXT: br i1 true, label %us-unreachable, label %inc - -; CHECK: second_switch: ; preds = %loop_begin -; CHECK-NEXT: switch i32 %d, label %default [ -; CHECK-NEXT: i32 1, label %inc -; CHECK-NEXT: ] - -; CHECK: inc: ; preds = %loop_begin.inc_crit_edge, %second_switch -; CHECK-NEXT: call void @incf() [[NOR_NUW]] -; CHECK-NEXT: br label %loop_begin.backedge - -define i32 @test(i32* %var) { - %mem = alloca i32 - store i32 2, i32* %mem - %c = load i32, i32* %mem - %d = load i32, i32* %mem - - br label %loop_begin - -loop_begin: - - %var_val = load i32, i32* %var - - switch i32 %c, label %second_switch [ - i32 1, label %inc - ] - -second_switch: - switch i32 %d, label %default [ - i32 1, label %inc - ] - -inc: - call void @incf() noreturn nounwind - br label %loop_begin - -default: - br label %loop_begin - -loop_exit: - ret i32 0 -} - -declare void @incf() noreturn -declare void @decf() noreturn - -; CHECK: attributes #0 = { noreturn } -; CHECK: attributes [[NOR_NUW]] = { noreturn nounwind } diff --git a/llvm/test/Transforms/LoopUnswitch/2011-11-18-TwoSwitches.ll b/llvm/test/Transforms/LoopUnswitch/2011-11-18-TwoSwitches.ll deleted file mode 100644 index 04852034225..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/2011-11-18-TwoSwitches.ll +++ /dev/null @@ -1,142 +0,0 @@ -; REQUIRES: asserts -; RUN: opt -loop-unswitch -loop-unswitch-threshold 1000 -disable-output -stats -info-output-file - < %s | FileCheck --check-prefix=STATS %s -; RUN: opt -S -loop-unswitch -loop-unswitch-threshold 1000 -verify-loop-info -verify-dom-info < %s | FileCheck %s -; RUN: opt -S -loop-unswitch -loop-unswitch-threshold 1000 -verify-loop-info -verify-dom-info -enable-mssa-loop-dependency=true -verify-memoryssa < %s | FileCheck %s - -; STATS: 3 loop-unswitch - Number of switches unswitched - -; CHECK: %1 = icmp eq i32 %c, 1 -; CHECK-NEXT: br i1 %1, label %.split.us, label %..split_crit_edge - -; CHECK: ..split_crit_edge: ; preds = %0 -; CHECK-NEXT: br label %.split - -; CHECK: .split.us: ; preds = %0 -; CHECK-NEXT: %2 = icmp eq i32 %d, 1 -; CHECK-NEXT: br i1 %2, label %.split.us.split.us, label %.split.us..split.us.split_crit_edge - -; CHECK: .split.us..split.us.split_crit_edge: ; preds = %.split.us -; CHECK-NEXT: br label %.split.us.split - -; CHECK: .split.us.split.us: ; preds = %.split.us -; CHECK-NEXT: br label %loop_begin.us.us - -; CHECK: loop_begin.us.us: ; preds = %loop_begin.backedge.us.us, %.split.us.split.us -; CHECK-NEXT: %var_val.us.us = load i32, i32* %var -; CHECK-NEXT: switch i32 1, label %second_switch.us.us [ -; CHECK-NEXT: i32 1, label %inc.us.us - -; CHECK: second_switch.us.us: ; preds = %loop_begin.us.us -; CHECK-NEXT: switch i32 1, label %default.us.us [ -; CHECK-NEXT: i32 1, label %inc.us.us - -; CHECK: inc.us.us: ; preds = %second_switch.us.us, %loop_begin.us.us -; CHECK-NEXT: call void @incf() [[NOR_NUW:#[0-9]+]] -; CHECK-NEXT: br label %loop_begin.backedge.us.us - -; CHECK: .split.us.split: ; preds = %.split.us..split.us.split_crit_edge -; CHECK-NEXT: br label %loop_begin.us - -; CHECK: loop_begin.us: ; preds = %loop_begin.backedge.us, %.split.us.split -; CHECK-NEXT: %var_val.us = load i32, i32* %var -; CHECK-NEXT: switch i32 1, label %second_switch.us [ -; CHECK-NEXT: i32 1, label %inc.us - -; CHECK: second_switch.us: ; preds = %loop_begin.us -; CHECK-NEXT: switch i32 %d, label %default.us [ -; CHECK-NEXT: i32 1, label %second_switch.us.inc.us_crit_edge -; CHECK-NEXT: ] - -; CHECK: second_switch.us.inc.us_crit_edge: ; preds = %second_switch.us -; CHECK-NEXT: br i1 true, label %us-unreachable8, label %inc.us - -; CHECK: inc.us: ; preds = %second_switch.us.inc.us_crit_edge, %loop_begin.us -; CHECK-NEXT: call void @incf() [[NOR_NUW]] -; CHECK-NEXT: br label %loop_begin.backedge.us - -; CHECK: .split: ; preds = %..split_crit_edge -; CHECK-NEXT: %3 = icmp eq i32 %d, 1 -; CHECK-NEXT: br i1 %3, label %.split.split.us, label %.split..split.split_crit_edge - -; CHECK: .split..split.split_crit_edge: ; preds = %.split -; CHECK-NEXT: br label %.split.split - -; CHECK: .split.split.us: ; preds = %.split -; CHECK-NEXT: br label %loop_begin.us1 - -; CHECK: loop_begin.us1: ; preds = %loop_begin.backedge.us6, %.split.split.us -; CHECK-NEXT: %var_val.us2 = load i32, i32* %var -; CHECK-NEXT: switch i32 %c, label %second_switch.us3 [ -; CHECK-NEXT: i32 1, label %loop_begin.inc_crit_edge.us -; CHECK-NEXT: ] - -; CHECK: second_switch.us3: ; preds = %loop_begin.us1 -; CHECK-NEXT: switch i32 1, label %default.us5 [ -; CHECK-NEXT: i32 1, label %inc.us4 -; CHECK-NEXT: ] - -; CHECK: inc.us4: ; preds = %loop_begin.inc_crit_edge.us, %second_switch.us3 -; CHECK-NEXT: call void @incf() [[NOR_NUW]] -; CHECK-NEXT: br label %loop_begin.backedge.us6 - -; CHECK: loop_begin.inc_crit_edge.us: ; preds = %loop_begin.us1 -; CHECK-NEXT: br i1 true, label %us-unreachable.us-lcssa.us, label %inc.us4 - -; CHECK: .split.split: ; preds = %.split..split.split_crit_edge -; CHECK-NEXT: br label %loop_begin - -; CHECK: loop_begin: ; preds = %loop_begin.backedge, %.split.split -; CHECK-NEXT: %var_val = load i32, i32* %var -; CHECK-NEXT: switch i32 %c, label %second_switch [ -; CHECK-NEXT: i32 1, label %loop_begin.inc_crit_edge -; CHECK-NEXT: ] - -; CHECK: loop_begin.inc_crit_edge: ; preds = %loop_begin -; CHECK-NEXT: br i1 true, label %us-unreachable.us-lcssa, label %inc - -; CHECK: second_switch: ; preds = %loop_begin -; CHECK-NEXT: switch i32 %d, label %default [ -; CHECK-NEXT: i32 1, label %second_switch.inc_crit_edge -; CHECK-NEXT: ] - -; CHECK: second_switch.inc_crit_edge: ; preds = %second_switch -; CHECK-NEXT: br i1 true, label %us-unreachable7, label %inc - - -define i32 @test(i32* %var) { - %mem = alloca i32 - store i32 2, i32* %mem - %c = load i32, i32* %mem - %d = load i32, i32* %mem - - br label %loop_begin - -loop_begin: - - %var_val = load i32, i32* %var - - switch i32 %c, label %second_switch [ - i32 1, label %inc - ] - -second_switch: - switch i32 %d, label %default [ - i32 1, label %inc - ] - -inc: - call void @incf() noreturn nounwind - br label %loop_begin - -default: - br label %loop_begin - -loop_exit: - ret i32 0 -} - -declare void @incf() noreturn -declare void @decf() noreturn - -; CHECK: attributes #0 = { noreturn } -; CHECK: attributes [[NOR_NUW]] = { noreturn nounwind } diff --git a/llvm/test/Transforms/LoopUnswitch/2012-04-02-IndirectBr.ll b/llvm/test/Transforms/LoopUnswitch/2012-04-02-IndirectBr.ll deleted file mode 100644 index 8ccf4452388..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/2012-04-02-IndirectBr.ll +++ /dev/null @@ -1,42 +0,0 @@ -; RUN: opt < %s -S -loop-unswitch -verify-loop-info -verify-dom-info | FileCheck %s -; RUN: opt < %s -S -loop-unswitch -verify-loop-info -verify-dom-info -enable-mssa-loop-dependency=true -verify-memoryssa | FileCheck %s -; PR12343: -loop-unswitch crash on indirect branch - -; CHECK: %0 = icmp eq i64 undef, 0 -; CHECK-NEXT: br i1 %0, label %"5", label %"4" - -; CHECK: "5": ; preds = %entry -; CHECK-NEXT: br label %"16" - -; CHECK: "16": ; preds = %"22", %"5" -; CHECK-NEXT: indirectbr i8* undef, [label %"22", label %"33"] - -; CHECK: "22": ; preds = %"16" -; CHECK-NEXT: br i1 %0, label %"16", label %"26" - -; CHECK: "26": ; preds = %"22" -; CHECK-NEXT: unreachable - -define void @foo() { -entry: - %0 = icmp eq i64 undef, 0 - br i1 %0, label %"5", label %"4" - -"4": ; preds = %entry - unreachable - -"5": ; preds = %entry - br label %"16" - -"16": ; preds = %"22", %"5" - indirectbr i8* undef, [label %"22", label %"33"] - -"22": ; preds = %"16" - br i1 %0, label %"16", label %"26" - -"26": ; preds = %"22" - unreachable - -"33": ; preds = %"16" - unreachable -} diff --git a/llvm/test/Transforms/LoopUnswitch/2012-04-30-LoopUnswitch-LPad-Crash.ll b/llvm/test/Transforms/LoopUnswitch/2012-04-30-LoopUnswitch-LPad-Crash.ll deleted file mode 100644 index 2c1847a545b..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/2012-04-30-LoopUnswitch-LPad-Crash.ll +++ /dev/null @@ -1,97 +0,0 @@ -; RUN: opt < %s -basicaa -instcombine -inline -functionattrs -licm -loop-unswitch -gvn -verify -; PR12573 -target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" -target triple = "x86_64-apple-macosx10.7.0" - -%class.D.22.42.66.102.138.158.178.198.238.242.246.250.262.294.302.338.346.379 = type { %class.C.23.43.67.103.139.159.179.199.239.243.247.251.263.295.303.339.347.376*, %class.B.21.41.65.101.137.157.177.197.237.241.245.249.261.293.301.337.345.378 } -%class.C.23.43.67.103.139.159.179.199.239.243.247.251.263.295.303.339.347.376 = type { %class.D.22.42.66.102.138.158.178.198.238.242.246.250.262.294.302.338.346.379* } -%class.B.21.41.65.101.137.157.177.197.237.241.245.249.261.293.301.337.345.378 = type { %class.A.20.40.64.100.136.156.176.196.236.240.244.248.260.292.300.336.344.377* } -%class.A.20.40.64.100.136.156.176.196.236.240.244.248.260.292.300.336.344.377 = type { i8 } - -define void @_Z23get_reconstruction_pathv() uwtable ssp personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { -entry: - %c = alloca %class.D.22.42.66.102.138.158.178.198.238.242.246.250.262.294.302.338.346.379, align 8 - br label %for.cond - -for.cond: ; preds = %for.end, %entry - invoke void @_ZN1DptEv(%class.D.22.42.66.102.138.158.178.198.238.242.246.250.262.294.302.338.346.379* %c) - to label %invoke.cont unwind label %lpad - -invoke.cont: ; preds = %for.cond - invoke void @_ZN1C3endEv() - to label %for.cond3 unwind label %lpad - -for.cond3: ; preds = %invoke.cont6, %invoke.cont - invoke void @_ZN1DptEv(%class.D.22.42.66.102.138.158.178.198.238.242.246.250.262.294.302.338.346.379* %c) - to label %invoke.cont4 unwind label %lpad - -invoke.cont4: ; preds = %for.cond3 - invoke void @_ZN1C3endEv() - to label %invoke.cont6 unwind label %lpad - -invoke.cont6: ; preds = %invoke.cont4 - br i1 undef, label %for.cond3, label %for.end - -lpad: ; preds = %for.end, %invoke.cont4, %for.cond3, %invoke.cont, %for.cond - %0 = landingpad { i8*, i32 } - cleanup - resume { i8*, i32 } undef - -for.end: ; preds = %invoke.cont6 - invoke void @_ZN1C13_M_insert_auxER1D() - to label %for.cond unwind label %lpad -} - -define void @_ZN1DptEv(%class.D.22.42.66.102.138.158.178.198.238.242.246.250.262.294.302.338.346.379* %this) uwtable ssp align 2 { -entry: - %this.addr = alloca %class.D.22.42.66.102.138.158.178.198.238.242.246.250.262.294.302.338.346.379*, align 8 - store %class.D.22.42.66.102.138.158.178.198.238.242.246.250.262.294.302.338.346.379* %this, %class.D.22.42.66.102.138.158.178.198.238.242.246.250.262.294.302.338.346.379** %this.addr, align 8 - %this1 = load %class.D.22.42.66.102.138.158.178.198.238.242.246.250.262.294.302.338.346.379*, %class.D.22.42.66.102.138.158.178.198.238.242.246.250.262.294.302.338.346.379** %this.addr - %px = getelementptr inbounds %class.D.22.42.66.102.138.158.178.198.238.242.246.250.262.294.302.338.346.379, %class.D.22.42.66.102.138.158.178.198.238.242.246.250.262.294.302.338.346.379* %this1, i32 0, i32 0 - %0 = load %class.C.23.43.67.103.139.159.179.199.239.243.247.251.263.295.303.339.347.376*, %class.C.23.43.67.103.139.159.179.199.239.243.247.251.263.295.303.339.347.376** %px, align 8 - %tobool = icmp ne %class.C.23.43.67.103.139.159.179.199.239.243.247.251.263.295.303.339.347.376* %0, null - br i1 %tobool, label %cond.end, label %cond.false - -cond.false: ; preds = %entry - call void @_Z10__assert13v() noreturn - unreachable - -cond.end: ; preds = %entry - ret void -} - -declare i32 @__gxx_personality_v0(...) - -declare void @_ZN1C3endEv() - -define void @_ZN1C13_M_insert_auxER1D() uwtable ssp align 2 { -entry: - ret void -} - -define void @_ZN1DD1Ev() unnamed_addr uwtable inlinehint ssp align 2 { -entry: - ret void -} - -define void @_ZN1DD2Ev() unnamed_addr uwtable inlinehint ssp align 2 { -entry: - ret void -} - -define void @_ZN1BD1Ev() unnamed_addr uwtable ssp align 2 { -entry: - ret void -} - -define void @_ZN1BD2Ev() unnamed_addr uwtable ssp align 2 { -entry: - ret void -} - -define void @_ZN1BaSERS_() uwtable ssp align 2 { -entry: - unreachable -} - -declare void @_Z10__assert13v() noreturn diff --git a/llvm/test/Transforms/LoopUnswitch/2012-05-20-Phi.ll b/llvm/test/Transforms/LoopUnswitch/2012-05-20-Phi.ll deleted file mode 100644 index f5e6af9db38..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/2012-05-20-Phi.ll +++ /dev/null @@ -1,26 +0,0 @@ -; RUN: opt < %s -loop-unswitch -disable-output -; RUN: opt < %s -loop-unswitch -enable-mssa-loop-dependency=true -verify-memoryssa -disable-output -; PR12887 -target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" -target triple = "x86_64-unknown-linux-gnu" - -@a = common global i32 0, align 4 -@c = common global i32 0, align 4 -@b = common global i32 0, align 4 - -define void @func() noreturn nounwind uwtable { -entry: - %0 = load i32, i32* @a, align 4 - %tobool = icmp eq i32 %0, 0 - %1 = load i32, i32* @b, align 4 - br label %while.body - -while.body: ; preds = %while.body, %entry - %d.0 = phi i8 [ undef, %entry ], [ %conv2, %while.body ] - %conv = sext i8 %d.0 to i32 - %cond = select i1 %tobool, i32 0, i32 %conv - %conv11 = zext i8 %d.0 to i32 - %add = add i32 %1, %conv11 - %conv2 = trunc i32 %add to i8 - br label %while.body -} diff --git a/llvm/test/Transforms/LoopUnswitch/2015-06-17-Metadata.ll b/llvm/test/Transforms/LoopUnswitch/2015-06-17-Metadata.ll deleted file mode 100644 index a215be9d487..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/2015-06-17-Metadata.ll +++ /dev/null @@ -1,77 +0,0 @@ -;RUN: opt -loop-unswitch -simplifycfg -S < %s | FileCheck %s - -define i32 @foo(i32 %a, i32 %b) { -;CHECK-LABEL: foo -entry: - br label %for.body.lr.ph - -for.body.lr.ph: ; preds = %entry - %cmp0 = icmp sgt i32 %b, 0 - br i1 %cmp0, label %for.body, label %for.cond.cleanup - -for.body: ; preds = %for.inc, %for.body.lr.ph - %inc.i = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %for.inc ] - %mul.i = phi i32 [ 3, %for.body.lr.ph ], [ %mul.p, %for.inc ] - %add.i = phi i32 [ %a, %for.body.lr.ph ], [ %add.p, %for.inc ] - %cmp1 = icmp eq i32 %a, 12345 - br i1 %cmp1, label %if.then, label %if.else, !prof !0 -; CHECK: %cmp1 = icmp eq i32 %a, 12345 -; CHECK-NEXT: br i1 %cmp1, label %for.body.us, label %for.body, !prof !0 -if.then: ; preds = %for.body -; CHECK: for.body.us: -; CHECK: add nsw i32 %{{.*}}, 123 -; CHECK: %exitcond.us = icmp eq i32 %inc.us, %b -; CHECK: br i1 %exitcond.us, label %for.cond.cleanup, label %for.body.us - %add = add nsw i32 %add.i, 123 - br label %for.inc - -if.else: ; preds = %for.body - %mul = mul nsw i32 %mul.i, %b - br label %for.inc -; CHECK: for.body: -; CHECK: %mul = mul nsw i32 %mul.i, %b -; CHECK: %inc = add nuw nsw i32 %inc.i, 1 -; CHECK: %exitcond = icmp eq i32 %inc, %b -; CHECK: br i1 %exitcond, label %for.cond.cleanup, label %for.body -for.inc: ; preds = %if.then, %if.else - %mul.p = phi i32 [ %b, %if.then ], [ %mul, %if.else ] - %add.p = phi i32 [ %add, %if.then ], [ %a, %if.else ] - %inc = add nuw nsw i32 %inc.i, 1 - %exitcond = icmp eq i32 %inc, %b - br i1 %exitcond, label %for.cond.cleanup, label %for.body - -for.cond.cleanup: ; preds = %for.inc, %for.body.lr.ph - %t2 = phi i32 [ %b, %for.body.lr.ph ], [ %mul.p, %for.inc ] - %t1 = phi i32 [ %a, %for.body.lr.ph ], [ %add.p, %for.inc ] - %add3 = add nsw i32 %t2, %t1 - ret i32 %add3 -} - -define void @foo_swapped(i32 %a, i32 %b) { -;CHECK-LABEL: foo_swapped -entry: - br label %for.body -;CHECK: entry: -;CHECK-NEXT: %cmp1 = icmp eq i32 1, 2 -;CHECK-NEXT: br i1 %cmp1, label %for.body, label %for.cond.cleanup.split, !prof !1 -;CHECK: for.body: -for.body: ; preds = %for.inc, %entry - %inc.i = phi i32 [ 0, %entry ], [ %inc, %if.then ] - %add.i = phi i32 [ 100, %entry ], [ %add, %if.then ] - %inc = add nuw nsw i32 %inc.i, 1 - %cmp1 = icmp eq i32 1, 2 - br i1 %cmp1, label %if.then, label %for.cond.cleanup, !prof !0 - -if.then: ; preds = %for.body - %add = add nsw i32 %a, %add.i - - %exitcond = icmp eq i32 %inc, %b - br i1 %exitcond, label %for.cond.cleanup, label %for.body - -for.cond.cleanup: ; preds = %for.inc, %for.body.lr.ph, %for.body - ret void -} -!0 = !{!"branch_weights", i32 64, i32 4} - -;CHECK: !0 = !{!"branch_weights", i32 64, i32 4} -;CHECK: !1 = !{!"branch_weights", i32 4, i32 64} diff --git a/llvm/test/Transforms/LoopUnswitch/2015-09-18-Addrspace.ll b/llvm/test/Transforms/LoopUnswitch/2015-09-18-Addrspace.ll deleted file mode 100644 index 62236b4dd86..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/2015-09-18-Addrspace.ll +++ /dev/null @@ -1,29 +0,0 @@ -; RUN: opt < %s -loop-unswitch -S | FileCheck %s -; RUN: opt < %s -loop-unswitch -enable-mssa-loop-dependency=true -verify-memoryssa -S | FileCheck %s - -; In cases where two address spaces do not have the same size pointer, the -; input for the addrspacecast should not be used as a substitute for itself -; when manipulating the pointer. - -target datalayout = "e-m:e-p:16:16-p1:32:16-i32:16-i64:16-n8:16" - -define void @foo() { -; CHECK-LABEL: @foo -entry: - %arrayidx.i1 = getelementptr inbounds i16, i16* undef, i16 undef - %arrayidx.i = addrspacecast i16* %arrayidx.i1 to i16 addrspace(1)* - br i1 undef, label %for.body.i, label %bar.exit - -for.body.i: ; preds = %for.body.i, %entry -; When we call makeLoopInvariant (i.e. trivial LICM) on this load, it -; will try to find the base object to prove deferenceability. If we look -; through the addrspacecast, we'll fail an assertion about bitwidths matching -; CHECK-LABEL: for.body.i -; CHECK: %0 = load i16, i16 addrspace(1)* %arrayidx.i, align 2 - %0 = load i16, i16 addrspace(1)* %arrayidx.i, align 2 - %cmp1.i = icmp eq i16 %0, 0 - br i1 %cmp1.i, label %bar.exit, label %for.body.i - -bar.exit: ; preds = %for.body.i, %entry - ret void -} diff --git a/llvm/test/Transforms/LoopUnswitch/AMDGPU/divergent-unswitch.ll b/llvm/test/Transforms/LoopUnswitch/AMDGPU/divergent-unswitch.ll deleted file mode 100644 index 1f106bd894a..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/AMDGPU/divergent-unswitch.ll +++ /dev/null @@ -1,85 +0,0 @@ -; RUN: opt -mtriple=amdgcn-- -O3 -S %s | FileCheck %s - -; Check that loop unswitch happened and condition hoisted out of the loop. -; Condition is uniform so all targets should perform unswitching. - -; CHECK-LABEL: {{^}}define amdgpu_kernel void @uniform_unswitch -; CHECK: entry: -; CHECK-NEXT: [[LOOP_COND:%[a-z0-9]+]] = icmp -; CHECK-NEXT: [[IF_COND:%[a-z0-9]+]] = icmp eq i32 %x, 123456 -; CHECK-NEXT: and i1 [[LOOP_COND]], [[IF_COND]] -; CHECK-NEXT: br i1 - -define amdgpu_kernel void @uniform_unswitch(i32 * nocapture %out, i32 %n, i32 %x) { -entry: - %cmp6 = icmp sgt i32 %n, 0 - br i1 %cmp6, label %for.body.lr.ph, label %for.cond.cleanup - -for.body.lr.ph: ; preds = %entry - %cmp1 = icmp eq i32 %x, 123456 - br label %for.body - -for.cond.cleanup.loopexit: ; preds = %for.inc - br label %for.cond.cleanup - -for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry - ret void - -for.body: ; preds = %for.inc, %for.body.lr.ph - %i.07 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %for.inc ] - br i1 %cmp1, label %if.then, label %for.inc - -if.then: ; preds = %for.body - %arrayidx = getelementptr inbounds i32, i32 * %out, i32 %i.07 - store i32 %i.07, i32 * %arrayidx, align 4 - br label %for.inc - -for.inc: ; preds = %for.body, %if.then - %inc = add nuw nsw i32 %i.07, 1 - %exitcond = icmp eq i32 %inc, %n - br i1 %exitcond, label %for.cond.cleanup.loopexit, label %for.body -} - -; Check that loop unswitch does not happen if condition is divergent. - -; CHECK-LABEL: {{^}}define amdgpu_kernel void @divergent_unswitch -; CHECK: entry: -; CHECK: icmp -; CHECK: [[IF_COND:%[a-z0-9]+]] = icmp {{.*}} 567890 -; CHECK: br label -; CHECK: br i1 [[IF_COND]] - -define amdgpu_kernel void @divergent_unswitch(i32 * nocapture %out, i32 %n) { -entry: - %cmp9 = icmp sgt i32 %n, 0 - br i1 %cmp9, label %for.body.lr.ph, label %for.cond.cleanup - -for.body.lr.ph: ; preds = %entry - %call = tail call i32 @llvm.amdgcn.workitem.id.x() #0 - %cmp2 = icmp eq i32 %call, 567890 - br label %for.body - -for.cond.cleanup.loopexit: ; preds = %for.inc - br label %for.cond.cleanup - -for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry - ret void - -for.body: ; preds = %for.inc, %for.body.lr.ph - %i.010 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %for.inc ] - br i1 %cmp2, label %if.then, label %for.inc - -if.then: ; preds = %for.body - %arrayidx = getelementptr inbounds i32, i32 * %out, i32 %i.010 - store i32 %i.010, i32 * %arrayidx, align 4 - br label %for.inc - -for.inc: ; preds = %for.body, %if.then - %inc = add nuw nsw i32 %i.010, 1 - %exitcond = icmp eq i32 %inc, %n - br i1 %exitcond, label %for.cond.cleanup.loopexit, label %for.body -} - -declare i32 @llvm.amdgcn.workitem.id.x() #0 - -attributes #0 = { nounwind readnone } diff --git a/llvm/test/Transforms/LoopUnswitch/AMDGPU/lit.local.cfg b/llvm/test/Transforms/LoopUnswitch/AMDGPU/lit.local.cfg deleted file mode 100644 index 2a665f06be7..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/AMDGPU/lit.local.cfg +++ /dev/null @@ -1,2 +0,0 @@ -if not 'AMDGPU' in config.root.targets: - config.unsupported = True diff --git a/llvm/test/Transforms/LoopUnswitch/LIV-loop-condtion.ll b/llvm/test/Transforms/LoopUnswitch/LIV-loop-condtion.ll deleted file mode 100644 index bf4b68c1d2e..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/LIV-loop-condtion.ll +++ /dev/null @@ -1,29 +0,0 @@ -; RUN: opt < %s -loop-unswitch -loop-unswitch-threshold=0 -S 2>&1 | FileCheck %s -; RUN: opt < %s -loop-unswitch -loop-unswitch-threshold=0 -enable-mssa-loop-dependency=true -verify-memoryssa -S 2>&1 | FileCheck %s - -; This is to test trivial loop unswitch only happens when trivial condition -; itself is an LIV loop condition (not partial LIV which could occur in and/or). - -define i32 @test(i1 %cond1, i32 %var1) { -entry: - br label %loop_begin - -loop_begin: - %var3 = phi i32 [%var1, %entry], [%var2, %do_something] - %cond2 = icmp eq i32 %var3, 10 - %cond.and = and i1 %cond1, %cond2 - -; %cond.and only has %cond1 as LIV so no unswitch should happen. -; CHECK: br i1 %cond.and, label %do_something, label %loop_exit - br i1 %cond.and, label %do_something, label %loop_exit - -do_something: - %var2 = add i32 %var3, 1 - call void @some_func() noreturn nounwind - br label %loop_begin - -loop_exit: - ret i32 0 -} - -declare void @some_func() noreturn diff --git a/llvm/test/Transforms/LoopUnswitch/basictest.ll b/llvm/test/Transforms/LoopUnswitch/basictest.ll deleted file mode 100644 index 539abd838cf..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/basictest.ll +++ /dev/null @@ -1,319 +0,0 @@ -; RUN: opt < %s -loop-unswitch -verify-loop-info -S < %s 2>&1 | FileCheck %s -; RUN: opt < %s -loop-unswitch -verify-loop-info -enable-mssa-loop-dependency=true -verify-memoryssa -S < %s 2>&1 | FileCheck %s - -define i32 @test(i32* %A, i1 %C) { -entry: - br label %no_exit -no_exit: ; preds = %no_exit.backedge, %entry - %i.0.0 = phi i32 [ 0, %entry ], [ %i.0.0.be, %no_exit.backedge ] ; <i32> [#uses=3] - %gep.upgrd.1 = zext i32 %i.0.0 to i64 ; <i64> [#uses=1] - %tmp.7 = getelementptr i32, i32* %A, i64 %gep.upgrd.1 ; <i32*> [#uses=4] - %tmp.13 = load i32, i32* %tmp.7 ; <i32> [#uses=2] - %tmp.14 = add i32 %tmp.13, 1 ; <i32> [#uses=1] - store i32 %tmp.14, i32* %tmp.7 - br i1 %C, label %then, label %endif -then: ; preds = %no_exit - %tmp.29 = load i32, i32* %tmp.7 ; <i32> [#uses=1] - %tmp.30 = add i32 %tmp.29, 2 ; <i32> [#uses=1] - store i32 %tmp.30, i32* %tmp.7 - %inc9 = add i32 %i.0.0, 1 ; <i32> [#uses=2] - %tmp.112 = icmp ult i32 %inc9, 100000 ; <i1> [#uses=1] - br i1 %tmp.112, label %no_exit.backedge, label %return -no_exit.backedge: ; preds = %endif, %then - %i.0.0.be = phi i32 [ %inc9, %then ], [ %inc, %endif ] ; <i32> [#uses=1] - br label %no_exit -endif: ; preds = %no_exit - %inc = add i32 %i.0.0, 1 ; <i32> [#uses=2] - %tmp.1 = icmp ult i32 %inc, 100000 ; <i1> [#uses=1] - br i1 %tmp.1, label %no_exit.backedge, label %return -return: ; preds = %endif, %then - ret i32 %tmp.13 -} - -; This simple test would normally unswitch, but should be inhibited by the presence of -; the noduplicate call. - -; CHECK-LABEL: @test2( -define i32 @test2(i32* %var) { - %mem = alloca i32 - store i32 2, i32* %mem - %c = load i32, i32* %mem - - br label %loop_begin - -loop_begin: - - %var_val = load i32, i32* %var - - switch i32 %c, label %default [ - i32 1, label %inc - i32 2, label %dec - ] - -inc: - call void @incf() noreturn nounwind - br label %loop_begin -dec: -; CHECK: call void @decf() -; CHECK-NOT: call void @decf() - call void @decf() noreturn nounwind noduplicate - br label %loop_begin -default: - br label %loop_exit -loop_exit: - ret i32 0 -; CHECK: } -} - -; This simple test would normally unswitch, but should be inhibited by the presence of -; the convergent call that is not control-dependent on the unswitch condition. - -; CHECK-LABEL: @test3( -define i32 @test3(i32* %var) { - %mem = alloca i32 - store i32 2, i32* %mem - %c = load i32, i32* %mem - - br label %loop_begin - -loop_begin: - - %var_val = load i32, i32* %var - -; CHECK: call void @conv() -; CHECK-NOT: call void @conv() - call void @conv() convergent - - switch i32 %c, label %default [ - i32 1, label %inc - i32 2, label %dec - ] - -inc: - call void @incf() noreturn nounwind - br label %loop_begin -dec: - call void @decf() noreturn nounwind - br label %loop_begin -default: - br label %loop_exit -loop_exit: - ret i32 0 -; CHECK: } -} - -; Make sure we unswitch %a == 0 out of the loop. -; -; CHECK: define void @and_i2_as_switch_input(i2 -; CHECK: entry: -; This is an indication that the loop has been unswitched. -; CHECK: icmp eq i2 %a, 0 -; CHECK: br -; There should be no more unswitching after the 1st unswitch. -; CHECK-NOT: icmp eq -; CHECK: ret -define void @and_i2_as_switch_input(i2 %a) { -entry: - br label %for.body - -for.body: - %i = phi i2 [ 0, %entry ], [ %inc, %for.inc ] - %and = and i2 %a, %i - %and1 = and i2 %and, %i - switch i2 %and1, label %sw.default [ - i2 0, label %sw.bb - i2 1, label %sw.bb1 - ] - -sw.bb: - br label %sw.epilog - -sw.bb1: - br label %sw.epilog - -sw.default: - br label %sw.epilog - -sw.epilog: - br label %for.inc - -for.inc: - %inc = add nsw i2 %i, 1 - %cmp = icmp slt i2 %inc, 3 - br i1 %cmp, label %for.body, label %for.end - -for.end: - ret void -} - -; Make sure we unswitch %a == !0 out of the loop. -; -; CHECK: define void @or_i2_as_switch_input(i2 -; CHECK: entry: -; This is an indication that the loop has been unswitched. -; CHECK: icmp eq i2 %a, -1 -; CHECK: br -; There should be no more unswitching after the 1st unswitch. -; CHECK-NOT: icmp eq -; CHECK: ret -define void @or_i2_as_switch_input(i2 %a) { -entry: - br label %for.body - -for.body: - %i = phi i2 [ 0, %entry ], [ %inc, %for.inc ] - %or = or i2 %a, %i - %or1 = or i2 %or, %i - switch i2 %or1, label %sw.default [ - i2 2, label %sw.bb - i2 3, label %sw.bb1 - ] - -sw.bb: - br label %sw.epilog - -sw.bb1: - br label %sw.epilog - -sw.default: - br label %sw.epilog - -sw.epilog: - br label %for.inc - -for.inc: - %inc = add nsw i2 %i, 1 - %cmp = icmp slt i2 %inc, 3 - br i1 %cmp, label %for.body, label %for.end - -for.end: - ret void -} - -; Make sure we unswitch %a == !0 out of the loop. Even we do not -; have it as a case value. Unswitching it out allows us to simplify -; the or operator chain. -; -; CHECK: define void @or_i2_as_switch_input_unswitch_default(i2 -; CHECK: entry: -; This is an indication that the loop has been unswitched. -; CHECK: icmp eq i2 %a, -1 -; CHECK: br -; There should be no more unswitching after the 1st unswitch. -; CHECK-NOT: icmp eq -; CHECK: ret -define void @or_i2_as_switch_input_unswitch_default(i2 %a) { -entry: - br label %for.body - -for.body: - %i = phi i2 [ 0, %entry ], [ %inc, %for.inc ] - %or = or i2 %a, %i - %or1 = or i2 %or, %i - switch i2 %or1, label %sw.default [ - i2 1, label %sw.bb - i2 2, label %sw.bb1 - ] - -sw.bb: - br label %sw.epilog - -sw.bb1: - br label %sw.epilog - -sw.default: - br label %sw.epilog - -sw.epilog: - br label %for.inc - -for.inc: - %inc = add nsw i2 %i, 1 - %cmp = icmp slt i2 %inc, 3 - br i1 %cmp, label %for.body, label %for.end - -for.end: - ret void -} - -; Make sure we don't unswitch, as we can not find an input value %a -; that will effectively unswitch 0 or 3 out of the loop. -; -; CHECK: define void @and_or_i2_as_switch_input(i2 -; CHECK: entry: -; This is an indication that the loop has NOT been unswitched. -; CHECK-NOT: icmp -; CHECK: br -define void @and_or_i2_as_switch_input(i2 %a) { -entry: - br label %for.body - -for.body: - %i = phi i2 [ 0, %entry ], [ %inc, %for.inc ] - %and = and i2 %a, %i - %or = or i2 %and, %i - switch i2 %or, label %sw.default [ - i2 0, label %sw.bb - i2 3, label %sw.bb1 - ] - -sw.bb: - br label %sw.epilog - -sw.bb1: - br label %sw.epilog - -sw.default: - br label %sw.epilog - -sw.epilog: - br label %for.inc - -for.inc: - %inc = add nsw i2 %i, 1 - %cmp = icmp slt i2 %inc, 3 - br i1 %cmp, label %for.body, label %for.end - -for.end: - ret void -} - -; Make sure we don't unswitch, as we can not find an input value %a -; that will effectively unswitch true/false out of the loop. -; -; CHECK: define void @and_or_i1_as_branch_input(i1 -; CHECK: entry: -; This is an indication that the loop has NOT been unswitched. -; CHECK-NOT: icmp -; CHECK: br -define void @and_or_i1_as_branch_input(i1 %a) { -entry: - br label %for.body - -for.body: - %i = phi i1 [ 0, %entry ], [ %inc, %for.inc ] - %and = and i1 %a, %i - %or = or i1 %and, %i - br i1 %or, label %sw.bb, label %sw.bb1 - -sw.bb: - br label %sw.epilog - -sw.bb1: - br label %sw.epilog - -sw.epilog: - br label %for.inc - -for.inc: - %inc = add nsw i1 %i, 1 - %cmp = icmp slt i1 %inc, 1 - br i1 %cmp, label %for.body, label %for.end - -for.end: - ret void -} - -declare void @incf() noreturn -declare void @decf() noreturn -declare void @conv() convergent diff --git a/llvm/test/Transforms/LoopUnswitch/cleanuppad.ll b/llvm/test/Transforms/LoopUnswitch/cleanuppad.ll deleted file mode 100644 index 80b913b1035..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/cleanuppad.ll +++ /dev/null @@ -1,45 +0,0 @@ -; RUN: opt -S -loop-unswitch < %s | FileCheck %s -; RUN: opt -S -loop-unswitch -enable-mssa-loop-dependency=true -verify-memoryssa < %s | FileCheck %s -target triple = "x86_64-pc-win32" - -define void @f(i32 %doit, i1 %x, i1 %y) personality i32 (...)* @__CxxFrameHandler3 { -entry: - %tobool = icmp eq i32 %doit, 0 - br label %for.cond - -for.cond: ; preds = %for.inc, %entry - br i1 %x, label %for.body, label %for.end - -for.body: ; preds = %for.cond - br i1 %tobool, label %if.then, label %for.inc - -if.then: ; preds = %for.body - br i1 %y, label %for.inc, label %delete.notnull - -delete.notnull: ; preds = %if.then - invoke void @g() - to label %invoke.cont unwind label %lpad - -invoke.cont: ; preds = %delete.notnull - br label %for.inc - -lpad: ; preds = %delete.notnull - %cp = cleanuppad within none [] - cleanupret from %cp unwind to caller - -for.inc: ; preds = %invoke.cont, %if.then, %for.body - br label %for.cond - -for.end: ; preds = %for.cond - ret void -} - -declare void @g() - -declare i32 @__CxxFrameHandler3(...) - -; CHECK-LABEL: define void @f( -; CHECK: cleanuppad within none [] -; CHECK-NOT: cleanuppad - -attributes #0 = { ssp uwtable } diff --git a/llvm/test/Transforms/LoopUnswitch/copy-metadata.ll b/llvm/test/Transforms/LoopUnswitch/copy-metadata.ll deleted file mode 100644 index 6b5b93dedf9..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/copy-metadata.ll +++ /dev/null @@ -1,24 +0,0 @@ -; RUN: opt < %s -loop-unswitch -S < %s 2>&1 | FileCheck %s -; RUN: opt < %s -loop-unswitch -enable-mssa-loop-dependency=true -verify-memoryssa -S < %s 2>&1 | FileCheck %s - -; This test checks if unswitched condition preserve make.implicit metadata. - -define i32 @test(i1 %cond) { -; CHECK-LABEL: @test( -; CHECK: br i1 %cond, label %..split_crit_edge, label %.loop_exit.split_crit_edge, !make.implicit !0 - br label %loop_begin - -loop_begin: - br i1 %cond, label %continue, label %loop_exit, !make.implicit !0 - -continue: - call void @some_func() - br label %loop_begin - -loop_exit: - ret i32 0 -} - -declare void @some_func() - -!0 = !{} diff --git a/llvm/test/Transforms/LoopUnswitch/crash.ll b/llvm/test/Transforms/LoopUnswitch/crash.ll deleted file mode 100644 index 6df3e7f3eb0..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/crash.ll +++ /dev/null @@ -1,67 +0,0 @@ -; RUN: opt < %s -loop-unswitch -disable-output -; RUN: opt < %s -loop-unswitch -enable-mssa-loop-dependency=true -verify-memoryssa -disable-output - -define void @test1(i32* %S2) { -entry: - br i1 false, label %list_Length.exit, label %cond_true.i -cond_true.i: ; preds = %entry - ret void -list_Length.exit: ; preds = %entry - br i1 false, label %list_Length.exit9, label %cond_true.i5 -cond_true.i5: ; preds = %list_Length.exit - ret void -list_Length.exit9: ; preds = %list_Length.exit - br i1 false, label %bb78, label %return -bb44: ; preds = %bb78, %cond_next68 - br i1 %tmp49.not, label %bb62, label %bb62.loopexit -bb62.loopexit: ; preds = %bb44 - br label %bb62 -bb62: ; preds = %bb62.loopexit, %bb44 - br i1 false, label %return.loopexit, label %cond_next68 -cond_next68: ; preds = %bb62 - br i1 false, label %return.loopexit, label %bb44 -bb78: ; preds = %list_Length.exit9 - %tmp49.not = icmp eq i32* %S2, null ; <i1> [#uses=1] - br label %bb44 -return.loopexit: ; preds = %cond_next68, %bb62 - %retval.0.ph = phi i32 [ 1, %cond_next68 ], [ 0, %bb62 ] ; <i32> [#uses=1] - br label %return -return: ; preds = %return.loopexit, %list_Length.exit9 - %retval.0 = phi i32 [ 0, %list_Length.exit9 ], [ %retval.0.ph, %return.loopexit ] ; <i32> [#uses=0] - ret void -} - -define void @test2() nounwind { -entry: - br label %bb.nph - -bb.nph: ; preds = %entry - %and.i13521 = and <4 x i1> undef, undef ; <<4 x i1>> [#uses=1] - br label %for.body - -for.body: ; preds = %for.body, %bb.nph - %or.i = select <4 x i1> %and.i13521, <4 x i32> undef, <4 x i32> undef ; <<4 x i32>> [#uses=0] - br i1 false, label %for.body, label %for.end - -for.end: ; preds = %for.body, %entry - ret void -} - -; PR6879 -define i32* @test3(i32** %p_45, i16 zeroext %p_46, i64 %p_47, i64 %p_48, i16 signext %p_49) nounwind { -entry: - br label %for.cond - -for.cond: ; preds = %for.cond4, %entry - br i1 false, label %for.cond4, label %for.end88 - -for.cond4: ; preds = %for.cond - %conv46 = trunc i32 0 to i8 ; <i8> [#uses=2] - %cmp60 = icmp sgt i8 %conv46, 124 ; <i1> [#uses=1] - %or.cond = and i1 undef, %cmp60 ; <i1> [#uses=1] - %cond = select i1 %or.cond, i8 %conv46, i8 undef ; <i8> [#uses=0] - br label %for.cond - -for.end88: ; preds = %for.cond - ret i32* undef -} diff --git a/llvm/test/Transforms/LoopUnswitch/elseif-non-exponential-behavior.ll b/llvm/test/Transforms/LoopUnswitch/elseif-non-exponential-behavior.ll deleted file mode 100644 index b328aaae973..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/elseif-non-exponential-behavior.ll +++ /dev/null @@ -1,63 +0,0 @@ -; RUN: opt -loop-unswitch -S - < %s | FileCheck %s -; RUN: opt -loop-unswitch -enable-mssa-loop-dependency=true -verify-memoryssa -S - < %s | FileCheck %s - -;CHECK-LABEL: @b -;CHECK: [[Loop1:for\.end.*]]: ; preds = %for.cond.us -;CHECK-NEXT: %[[PhiVar1:pdt.*]] = phi i32 [ %pdt.0.us, %for.cond.us ] -;CHECK: [[Loop2:for\.end.*]]: ; preds = %for.cond.us1 -;CHECK-NEXT: %[[PhiVar2:pdt.*]] = phi i32 [ %pdt.0.us2, %for.cond.us1 ] -;CHECK: [[Loop3:for\.end.*]]: ; preds = %for.cond -;CHECK-NEXT: %[[PhiVar3:pdt.*]] = phi i32 [ %pdt.0, %for.cond ] -;CHECK: [[Join1:for\.end.*]]: ; preds = %[[Loop2]], %[[Loop3]] -;CHECK-NEXT: %[[PhiRes1:pdt.*]] = phi i32 [ %[[PhiVar3]], %[[Loop3]] ], [ %[[PhiVar2]], %[[Loop2]] ] -;CHECK: for.end: ; preds = %[[Loop1]], %[[Join1]] -;CHECK-NEXT: %[[PhiRes2:pdt.*]] = phi i32 [ %[[PhiRes1]], %[[Join1]] ], [ %[[PhiVar1]], %[[Loop1]] ] -;CHECK-NEXT: ret i32 %[[PhiRes2]] - -; Function Attrs: nounwind uwtable -define i32 @b(i32 %x, i32 %y) #0 { -entry: - br label %for.cond - -for.cond: ; preds = %for.inc, %entry - %pdt.0 = phi i32 [ 1, %entry ], [ %pdt.2, %for.inc ] - %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ] - %cmp = icmp slt i32 %i.0, 100 - br i1 %cmp, label %for.body, label %for.end - -for.body: ; preds = %for.cond - %tobool = icmp ne i32 %x, 0 - br i1 %tobool, label %if.then, label %if.else - -if.then: ; preds = %for.body - %mul = mul nsw i32 %pdt.0, 2 - br label %if.end6 - -if.else: ; preds = %for.body - %tobool1 = icmp ne i32 %y, 0 - br i1 %tobool1, label %if.then2, label %if.else4 - -if.then2: ; preds = %if.else - %mul3 = mul nsw i32 %pdt.0, 3 - br label %if.end - -if.else4: ; preds = %if.else - %mul5 = mul nsw i32 %pdt.0, 4 - br label %if.end - -if.end: ; preds = %if.else4, %if.then2 - %pdt.1 = phi i32 [ %mul3, %if.then2 ], [ %mul5, %if.else4 ] - br label %if.end6 - -if.end6: ; preds = %if.end, %if.then - %pdt.2 = phi i32 [ %mul, %if.then ], [ %pdt.1, %if.end ] - br label %for.inc - -for.inc: ; preds = %if.end6 - %inc = add nsw i32 %i.0, 1 - br label %for.cond - -for.end: ; preds = %for.cond - ret i32 %pdt.0 -} - diff --git a/llvm/test/Transforms/LoopUnswitch/exponential-behavior.ll b/llvm/test/Transforms/LoopUnswitch/exponential-behavior.ll deleted file mode 100644 index 9dfa61e028c..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/exponential-behavior.ll +++ /dev/null @@ -1,52 +0,0 @@ -; RUN: opt -loop-unswitch -S < %s | FileCheck %s -; RUN: opt -loop-unswitch -enable-mssa-loop-dependency=true -verify-memoryssa -S < %s | FileCheck %s - -define void @f(i32 %n, i32* %ptr) { -; CHECK-LABEL: @f( -entry: - br label %loop - -loop: - %iv = phi i32 [ 0, %entry ], [ %iv.inc, %be ] - %iv.inc = add i32 %iv, 1 - %unswitch_cond_root = icmp ne i32 %iv.inc, 42 - %us.0 = and i1 %unswitch_cond_root, %unswitch_cond_root - %us.1 = and i1 %us.0, %us.0 - %us.2 = and i1 %us.1, %us.1 - %us.3 = and i1 %us.2, %us.2 - %us.4 = and i1 %us.3, %us.3 - %us.5 = and i1 %us.4, %us.4 - %us.6 = and i1 %us.5, %us.5 - %us.7 = and i1 %us.6, %us.6 - %us.8 = and i1 %us.7, %us.7 - %us.9 = and i1 %us.8, %us.8 - %us.10 = and i1 %us.9, %us.9 - %us.11 = and i1 %us.10, %us.10 - %us.12 = and i1 %us.11, %us.11 - %us.13 = and i1 %us.12, %us.12 - %us.14 = and i1 %us.13, %us.13 - %us.15 = and i1 %us.14, %us.14 - %us.16 = and i1 %us.15, %us.15 - %us.17 = and i1 %us.16, %us.16 - %us.18 = and i1 %us.17, %us.17 - %us.19 = and i1 %us.18, %us.18 - %us.20 = and i1 %us.19, %us.19 - %us.21 = and i1 %us.20, %us.20 - %us.22 = and i1 %us.21, %us.21 - %us.23 = and i1 %us.22, %us.22 - %us.24 = and i1 %us.23, %us.23 - %us.25 = and i1 %us.24, %us.24 - %us.26 = and i1 %us.25, %us.25 - %us.27 = and i1 %us.26, %us.26 - %us.28 = and i1 %us.27, %us.27 - %us.29 = and i1 %us.28, %us.28 - br i1 %us.29, label %leave, label %be - -be: - store volatile i32 0, i32* %ptr - %becond = icmp ult i32 %iv.inc, %n - br i1 %becond, label %leave, label %loop - -leave: - ret void -} diff --git a/llvm/test/Transforms/LoopUnswitch/guards.ll b/llvm/test/Transforms/LoopUnswitch/guards.ll deleted file mode 100644 index 957ea1a7900..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/guards.ll +++ /dev/null @@ -1,98 +0,0 @@ -; RUN: opt -S -loop-unswitch < %s | FileCheck %s -; RUN: opt -S -loop-unswitch -enable-mssa-loop-dependency=true -verify-memoryssa < %s | FileCheck %s - -declare void @llvm.experimental.guard(i1, ...) - -define void @f_0(i32 %n, i32* %ptr, i1 %c) { -; CHECK-LABEL: @f_0( -; CHECK: loop.us: -; CHECK-NOT: guard -; CHECK: loop: -; CHECK: call void (i1, ...) @llvm.experimental.guard(i1 false) [ "deopt"() ] -entry: - br label %loop - -loop: - %iv = phi i32 [ 0, %entry ], [ %iv.inc, %loop ] - %iv.inc = add i32 %iv, 1 - call void(i1, ...) @llvm.experimental.guard(i1 %c) [ "deopt"() ] - store volatile i32 0, i32* %ptr - %becond = icmp ult i32 %iv.inc, %n - br i1 %becond, label %leave, label %loop - -leave: - ret void -} - -define void @f_1(i32 %n, i32* %ptr, i1 %c_0, i1 %c_1) { -; CHECK-LABEL: @f_1( -; CHECK: loop.us.us: -; CHECK-NOT: guard -; CHECK: loop.us: -; CHECK: call void (i1, ...) @llvm.experimental.guard(i1 false) [ "deopt"(i32 2) ] -; CHECK-NOT: guard -; CHECK: loop.us1: -; CHECK: call void (i1, ...) @llvm.experimental.guard(i1 false) [ "deopt"(i32 1) ] -; CHECK-NOT: guard -; CHECK: loop: -; CHECK: call void (i1, ...) @llvm.experimental.guard(i1 false) [ "deopt"(i32 1) ] -; CHECK: call void (i1, ...) @llvm.experimental.guard(i1 false) [ "deopt"(i32 2) ] -entry: - br label %loop - -loop: - %iv = phi i32 [ 0, %entry ], [ %iv.inc, %loop ] - %iv.inc = add i32 %iv, 1 - call void(i1, ...) @llvm.experimental.guard(i1 %c_0) [ "deopt"(i32 1) ] - store volatile i32 0, i32* %ptr - call void(i1, ...) @llvm.experimental.guard(i1 %c_1) [ "deopt"(i32 2) ] - %becond = icmp ult i32 %iv.inc, %n - br i1 %becond, label %leave, label %loop - -leave: - ret void -} - -; Basic negative test - -define void @f_3(i32 %n, i32* %ptr, i1* %c_ptr) { -; CHECK-LABEL: @f_3( -; CHECK-NOT: loop.us: -entry: - br label %loop - -loop: - %iv = phi i32 [ 0, %entry ], [ %iv.inc, %loop ] - %iv.inc = add i32 %iv, 1 - %c = load volatile i1, i1* %c_ptr - call void(i1, ...) @llvm.experimental.guard(i1 %c) [ "deopt"() ] - store volatile i32 0, i32* %ptr - %becond = icmp ult i32 %iv.inc, %n - br i1 %becond, label %leave, label %loop - -leave: - ret void -} - -define void @f_4(i32 %n, i32* %ptr, i1 %c) { -; CHECK-LABEL: @f_4( -; -; Demonstrate that unswitching on one guard can cause another guard to -; be erased (this has implications on what guards we can keep raw -; pointers to). -entry: - br label %loop - -loop: - %iv = phi i32 [ 0, %entry ], [ %iv.inc, %loop ] - %iv.inc = add i32 %iv, 1 - call void(i1, ...) @llvm.experimental.guard(i1 %c) [ "deopt"(i32 1) ] - store volatile i32 0, i32* %ptr - %neg = xor i1 %c, 1 - call void(i1, ...) @llvm.experimental.guard(i1 %neg) [ "deopt"(i32 2) ] - %becond = icmp ult i32 %iv.inc, %n - br i1 %becond, label %leave, label %loop - -leave: - ret void -} diff --git a/llvm/test/Transforms/LoopUnswitch/infinite-loop.ll b/llvm/test/Transforms/LoopUnswitch/infinite-loop.ll deleted file mode 100644 index f11aa50e634..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/infinite-loop.ll +++ /dev/null @@ -1,59 +0,0 @@ -; REQUIRES: asserts -; RUN: opt -loop-unswitch -disable-output -stats -info-output-file - < %s | FileCheck --check-prefix=STATS %s -; RUN: opt -loop-unswitch -enable-mssa-loop-dependency=true -verify-memoryssa -disable-output -stats -info-output-file - < %s | FileCheck --check-prefix=STATS %s -; RUN: opt -loop-unswitch -simplifycfg -S < %s | FileCheck %s -; PR5373 - -; Loop unswitching shouldn't trivially unswitch the true case of condition %a -; in the code here because it leads to an infinite loop. While this doesn't -; contain any instructions with side effects, it's still a kind of side effect. -; It can trivially unswitch on the false case of condition %a though. - -; STATS: 2 loop-unswitch - Number of branches unswitched -; STATS: 2 loop-unswitch - Number of unswitches that are trivial - -; CHECK-LABEL: @func_16( -; CHECK-NEXT: entry: -; CHECK-NEXT: br i1 %a, label %entry.split, label %abort0.split - -; CHECK: entry.split: -; CHECK-NEXT: br i1 %b, label %for.body, label %abort1.split - -; CHECK: for.body: -; CHECK-NEXT: br label %for.body - -; CHECK: abort0.split: -; CHECK-NEXT: call void @end0() [[NOR_NUW:#[0-9]+]] -; CHECK-NEXT: unreachable - -; CHECK: abort1.split: -; CHECK-NEXT: call void @end1() [[NOR_NUW]] -; CHECK-NEXT: unreachable - -; CHECK: } - -define void @func_16(i1 %a, i1 %b) nounwind { -entry: - br label %for.body - -for.body: - br i1 %a, label %cond.end, label %abort0 - -cond.end: - br i1 %b, label %for.body, label %abort1 - -abort0: - call void @end0() noreturn nounwind - unreachable - -abort1: - call void @end1() noreturn nounwind - unreachable -} - -declare void @end0() noreturn -declare void @end1() noreturn - -; CHECK: attributes #0 = { nounwind } -; CHECK: attributes #1 = { noreturn } -; CHECK: attributes [[NOR_NUW]] = { noreturn nounwind } diff --git a/llvm/test/Transforms/LoopUnswitch/invalidate-scev.ll b/llvm/test/Transforms/LoopUnswitch/invalidate-scev.ll deleted file mode 100644 index 78ef4f00abc..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/invalidate-scev.ll +++ /dev/null @@ -1,34 +0,0 @@ -; RUN: opt -S -indvars -loop-unswitch < %s | FileCheck %s -; RUN: opt -S -indvars -loop-unswitch -enable-mssa-loop-dependency=true -verify-memoryssa < %s | FileCheck %s - -target triple = "x86_64-unknown-linux-gnu" - -define void @test_01() { - -; Make sure we don't fail by SCEV's assertion due to incorrect invalidation. -; CHECK-LABEL: @test_01 - -entry: - br label %loop - -loop: ; preds = %backedge, %entry - %p_50.addr.0 = phi i16 [ undef, %entry ], [ %add2699, %backedge ] - %idxprom2690 = sext i16 %p_50.addr.0 to i32 - %arrayidx2691 = getelementptr inbounds [5 x i32], [5 x i32]* undef, i32 0, i32 %idxprom2690 - %0 = load i32, i32* %arrayidx2691, align 1 - %tobool2692 = icmp ne i32 %0, 0 - br label %inner_loop - -inner_loop: ; preds = %inner_backedge, %loop - br i1 %tobool2692, label %backedge, label %inner_backedge - -inner_backedge: ; preds = %inner_loop - br label %inner_loop - -backedge: ; preds = %inner_loop - %add2699 = add nsw i16 %p_50.addr.0, 1 - br i1 false, label %loop, label %exit - -exit: ; preds = %backedge - unreachable -} diff --git a/llvm/test/Transforms/LoopUnswitch/msan.ll b/llvm/test/Transforms/LoopUnswitch/msan.ll deleted file mode 100644 index 194e64687be..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/msan.ll +++ /dev/null @@ -1,154 +0,0 @@ -; RUN: opt < %s -loop-unswitch -verify-loop-info -S < %s 2>&1 | FileCheck %s -; RUN: opt < %s -loop-unswitch -verify-loop-info -enable-mssa-loop-dependency=true -verify-memoryssa -S < %s 2>&1 | FileCheck %s - -@sink = global i32 0, align 4 -@y = global i64 0, align 8 - -; The following is approximately: -; void f(bool x, int p, int q) { -; volatile bool x2 = x; -; for (int i = 0; i < 1; ++i) { -; if (x2) { -; if (y) -; sink = p; -; else -; sink = q; -; } -; } -; } -; With MemorySanitizer, the loop can not be unswitched on "y", because "y" could -; be uninitialized when x == false. -; Test that the branch on "y" is inside the loop (after the first unconditional -; branch). - -define void @may_not_execute(i1 zeroext %x, i32 %p, i32 %q) sanitize_memory { -; CHECK-LABEL: @may_not_execute( -entry: -; CHECK: %[[Y:.*]] = load i64, i64* @y, align 8 -; CHECK: %[[YB:.*]] = icmp eq i64 %[[Y]], 0 -; CHECK-NOT: br i1 -; CHECK: br label -; CHECK: br i1 %[[YB]] - - %x2 = alloca i8, align 1 - %frombool1 = zext i1 %x to i8 - store volatile i8 %frombool1, i8* %x2, align 1 - %0 = load i64, i64* @y, align 8 - %tobool3 = icmp eq i64 %0, 0 - br label %for.body - -for.body: - %i.01 = phi i32 [ 0, %entry ], [ %inc, %for.inc ] - %x2.0. = load volatile i8, i8* %x2, align 1 - %tobool2 = icmp eq i8 %x2.0., 0 - br i1 %tobool2, label %for.inc, label %if.then - -if.then: - br i1 %tobool3, label %if.else, label %if.then4 - -if.then4: - store volatile i32 %p, i32* @sink, align 4 - br label %for.inc - -if.else: - store volatile i32 %q, i32* @sink, align 4 - br label %for.inc - -for.inc: - %inc = add nsw i32 %i.01, 1 - %cmp = icmp slt i32 %inc, 1 - br i1 %cmp, label %for.body, label %for.end - -for.end: - ret void -} - - -; The same as above, but "y" is a function parameter instead of a global. -; This shows that it is not enough to suppress hoisting of load instructions, -; the actual problem is in the speculative branching. - -define void @may_not_execute2(i1 zeroext %x, i1 zeroext %y, i32 %p, i32 %q) sanitize_memory { -; CHECK-LABEL: @may_not_execute2( -entry: -; CHECK-NOT: br i1 -; CHECK: br label -; CHECK: br i1 %y, - %x2 = alloca i8, align 1 - %frombool2 = zext i1 %x to i8 - store volatile i8 %frombool2, i8* %x2, align 1 - br label %for.body - -for.body: - %i.01 = phi i32 [ 0, %entry ], [ %inc, %for.inc ] - %x2.0. = load volatile i8, i8* %x2, align 1 - %tobool3 = icmp eq i8 %x2.0., 0 - br i1 %tobool3, label %for.inc, label %if.then - -if.then: - br i1 %y, label %if.then5, label %if.else - -if.then5: - store volatile i32 %p, i32* @sink, align 4 - br label %for.inc - -if.else: - store volatile i32 %q, i32* @sink, align 4 - br label %for.inc - -for.inc: - %inc = add nsw i32 %i.01, 1 - %cmp = icmp slt i32 %inc, 1 - br i1 %cmp, label %for.body, label %for.end - -for.end: - ret void -} - - -; The following is approximately: -; void f(bool x, int p, int q) { -; volatile bool x2 = x; -; for (int i = 0; i < 1; ++i) { -; if (y) -; sink = p; -; else -; sink = q; -; } -; } -; "if (y)" is guaranteed to execute; the loop can be unswitched. - -define void @must_execute(i1 zeroext %x, i32 %p, i32 %q) sanitize_memory { -; CHECK-LABEL: @must_execute( -entry: -; CHECK: %[[Y:.*]] = load i64, i64* @y, align 8 -; CHECK-NEXT: %[[YB:.*]] = icmp eq i64 %[[Y]], 0 -; CHECK-NEXT: br i1 %[[YB]], - - %x2 = alloca i8, align 1 - %frombool1 = zext i1 %x to i8 - store volatile i8 %frombool1, i8* %x2, align 1 - %0 = load i64, i64* @y, align 8 - %tobool2 = icmp eq i64 %0, 0 - br label %for.body - -for.body: - %i.01 = phi i32 [ 0, %entry ], [ %inc, %for.inc ] - br i1 %tobool2, label %if.else, label %if.then - -if.then: - store volatile i32 %p, i32* @sink, align 4 - br label %for.inc - -if.else: - store volatile i32 %q, i32* @sink, align 4 - br label %for.inc - -for.inc: - %inc = add nsw i32 %i.01, 1 - %cmp = icmp slt i32 %inc, 1 - br i1 %cmp, label %for.body, label %for.end - -for.end: - ret void -} diff --git a/llvm/test/Transforms/LoopUnswitch/pr32818.ll b/llvm/test/Transforms/LoopUnswitch/pr32818.ll deleted file mode 100644 index ed33494f59c..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/pr32818.ll +++ /dev/null @@ -1,20 +0,0 @@ -; Check that the call doesn't get removed even if -; it has no uses. It could have side-effects. -; RUN: opt -loop-unswitch -S %s | FileCheck %s -; RUN: opt -loop-unswitch -enable-mssa-loop-dependency=true -verify-memoryssa -S %s | FileCheck %s - -; CHECK-LABEL: @tinky -define i32 @tinkywinky(i8 %patatino) { - %cmp1 = icmp slt i8 %patatino, 5 - br label %body -body: - %i = select i1 %cmp1, i8 6, i8 undef - br i1 true, label %body, label %end -end: - %split = phi i8 [ %i, %body ] - %conv4 = sext i8 %split to i32 -; CHECK: tail call fastcc i32 @fn5( - %call = tail call fastcc i32 @fn5(i32 %conv4) - ret i32 0 -} -declare fastcc i32 @fn5(i32 returned) unnamed_addr diff --git a/llvm/test/Transforms/LoopUnswitch/preserve-analyses.ll b/llvm/test/Transforms/LoopUnswitch/preserve-analyses.ll deleted file mode 100644 index d731fba34a1..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/preserve-analyses.ll +++ /dev/null @@ -1,130 +0,0 @@ -; RUN: opt -loop-unswitch -verify-loop-info -verify-dom-info -disable-output < %s -; RUN: opt -loop-unswitch -enable-mssa-loop-dependency=true -verify-memoryssa -verify-loop-info -verify-dom-info -disable-output < %s - -; Loop unswitch should be able to unswitch these loops and -; preserve LCSSA and LoopSimplify forms. - -target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:64:64-v128:128:128-a0:0:64" -target triple = "armv6-apple-darwin9" - -@delim1 = external global i32 ; <i32*> [#uses=1] -@delim2 = external global i32 ; <i32*> [#uses=1] - -define i32 @ineqn(i8* %s, i8* %p) nounwind readonly { -entry: - %0 = load i32, i32* @delim1, align 4 ; <i32> [#uses=1] - %1 = load i32, i32* @delim2, align 4 ; <i32> [#uses=1] - br label %bb8.outer - -bb: ; preds = %bb8 - %2 = icmp eq i8* %p_addr.0, %s ; <i1> [#uses=1] - br i1 %2, label %bb10, label %bb2 - -bb2: ; preds = %bb - %3 = getelementptr inbounds i8, i8* %p_addr.0, i32 1 ; <i8*> [#uses=3] - switch i32 %ineq.0.ph, label %bb8.backedge [ - i32 0, label %bb3 - i32 1, label %bb6 - ] - -bb8.backedge: ; preds = %bb6, %bb5, %bb2 - br label %bb8 - -bb3: ; preds = %bb2 - %4 = icmp eq i32 %8, %0 ; <i1> [#uses=1] - br i1 %4, label %bb8.outer.loopexit, label %bb5 - -bb5: ; preds = %bb3 - br i1 %6, label %bb6, label %bb8.backedge - -bb6: ; preds = %bb5, %bb2 - %5 = icmp eq i32 %8, %1 ; <i1> [#uses=1] - br i1 %5, label %bb7, label %bb8.backedge - -bb7: ; preds = %bb6 - %.lcssa1 = phi i8* [ %3, %bb6 ] ; <i8*> [#uses=1] - br label %bb8.outer.backedge - -bb8.outer.backedge: ; preds = %bb8.outer.loopexit, %bb7 - %.lcssa2 = phi i8* [ %.lcssa1, %bb7 ], [ %.lcssa, %bb8.outer.loopexit ] ; <i8*> [#uses=1] - %ineq.0.ph.be = phi i32 [ 0, %bb7 ], [ 1, %bb8.outer.loopexit ] ; <i32> [#uses=1] - br label %bb8.outer - -bb8.outer.loopexit: ; preds = %bb3 - %.lcssa = phi i8* [ %3, %bb3 ] ; <i8*> [#uses=1] - br label %bb8.outer.backedge - -bb8.outer: ; preds = %bb8.outer.backedge, %entry - %ineq.0.ph = phi i32 [ 0, %entry ], [ %ineq.0.ph.be, %bb8.outer.backedge ] ; <i32> [#uses=3] - %p_addr.0.ph = phi i8* [ %p, %entry ], [ %.lcssa2, %bb8.outer.backedge ] ; <i8*> [#uses=1] - %6 = icmp eq i32 %ineq.0.ph, 1 ; <i1> [#uses=1] - br label %bb8 - -bb8: ; preds = %bb8.outer, %bb8.backedge - %p_addr.0 = phi i8* [ %p_addr.0.ph, %bb8.outer ], [ %3, %bb8.backedge ] ; <i8*> [#uses=3] - %7 = load i8, i8* %p_addr.0, align 1 ; <i8> [#uses=2] - %8 = sext i8 %7 to i32 ; <i32> [#uses=2] - %9 = icmp eq i8 %7, 0 ; <i1> [#uses=1] - br i1 %9, label %bb10, label %bb - -bb10: ; preds = %bb8, %bb - %.0 = phi i32 [ %ineq.0.ph, %bb ], [ 0, %bb8 ] ; <i32> [#uses=1] - ret i32 %.0 -} - -; This is a simplified form of ineqn from above. It triggers some -; different cases in the loop-unswitch code. - -define void @simplified_ineqn() nounwind readonly { -entry: - br label %bb8.outer - -bb8.outer: ; preds = %bb6, %bb2, %entry - %x = phi i32 [ 0, %entry ], [ 0, %bb6 ], [ 1, %bb2 ] ; <i32> [#uses=1] - br i1 undef, label %return, label %bb2 - -bb2: ; preds = %bb - switch i32 %x, label %bb6 [ - i32 0, label %bb8.outer - ] - -bb6: ; preds = %bb2 - br i1 undef, label %bb8.outer, label %bb2 - -return: ; preds = %bb8, %bb - ret void -} - -; This function requires special handling to preserve LCSSA form. -; PR4934 - -define void @pnp_check_irq() nounwind noredzone { -entry: - %conv56 = trunc i64 undef to i32 ; <i32> [#uses=1] - br label %while.cond.i - -while.cond.i: ; preds = %while.cond.i.backedge, %entry - %call.i25 = call i8* @pci_get_device() nounwind noredzone ; <i8*> [#uses=2] - br i1 undef, label %if.then65, label %while.body.i - -while.body.i: ; preds = %while.cond.i - br i1 undef, label %if.then31.i.i, label %while.cond.i.backedge - -while.cond.i.backedge: ; preds = %if.then31.i.i, %while.body.i - br label %while.cond.i - -if.then31.i.i: ; preds = %while.body.i - switch i32 %conv56, label %while.cond.i.backedge [ - i32 14, label %if.then42.i.i - i32 15, label %if.then42.i.i - ] - -if.then42.i.i: ; preds = %if.then31.i.i, %if.then31.i.i - %call.i25.lcssa48 = phi i8* [ %call.i25, %if.then31.i.i ], [ %call.i25, %if.then31.i.i ] ; <i8*> [#uses=0] - unreachable - -if.then65: ; preds = %while.cond.i - unreachable -} - -declare i8* @pci_get_device() noredzone diff --git a/llvm/test/Transforms/LoopUnswitch/simplify-with-nonvalness.ll b/llvm/test/Transforms/LoopUnswitch/simplify-with-nonvalness.ll deleted file mode 100644 index d2436f06e0c..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/simplify-with-nonvalness.ll +++ /dev/null @@ -1,59 +0,0 @@ -; RUN: opt < %s -loop-unswitch -verify-loop-info -S < %s 2>&1 | FileCheck %s -; RUN: opt < %s -loop-unswitch -verify-loop-info -enable-mssa-loop-dependency=true -verify-memoryssa -S < %s 2>&1 | FileCheck %s - -; There are 1 case and 1 default case in the switch. after we unswitch, we know the -; %a is definitely not 0 in one of the unswitched loop, make sure we take advantage -; of that and simplify the branches in the loop. -; -; CHECK: define void @simplify_with_nonvalness( - -; This is the loop in which we know %a is definitely 0. -; CHECK: sw.bb.us: -; CHECK: br i1 true, label %if.then.us, label %if.end.us - -; This is the loop in which we do not know what %a is but we know %a is definitely NOT 0. -; Make sure we use that information to simplify. -; The icmp eq i32 %a, 0 in one of the unswitched loop is simplified to false. -; CHECK: sw.bb.split: -; CHECK: br i1 false, label %if.then, label %if.end - -define void @simplify_with_nonvalness(i32 %a) #0 { -entry: - br label %for.cond - -for.cond: - %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ] - %cmp = icmp slt i32 %i.0, 1024 - br i1 %cmp, label %for.body, label %for.end - -for.body: - switch i32 %a, label %sw.default [ - i32 0, label %sw.bb - ] - -sw.bb: - %cmp1 = icmp eq i32 %a, 0 - br i1 %cmp1, label %if.then, label %if.end - -if.then: - call void (...) @bar() - br label %if.end - -if.end: - br label %sw.epilog - -sw.default: - br label %sw.epilog - -sw.epilog: - br label %for.inc - -for.inc: - %inc = add nsw i32 %i.0, 1 - br label %for.cond - -for.end: - ret void -} - -declare void @bar(...) diff --git a/llvm/test/Transforms/LoopUnswitch/trivial-unswitch.ll b/llvm/test/Transforms/LoopUnswitch/trivial-unswitch.ll deleted file mode 100644 index c820a53d991..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/trivial-unswitch.ll +++ /dev/null @@ -1,92 +0,0 @@ -; RUN: opt < %s -loop-unswitch -loop-unswitch-threshold=0 -verify-loop-info -S < %s 2>&1 | FileCheck %s -; RUN: opt < %s -loop-unswitch -loop-unswitch-threshold=0 -verify-loop-info -enable-mssa-loop-dependency=true -verify-memoryssa -S < %s 2>&1 | FileCheck %s - -; This test contains two trivial unswitch condition in one loop. -; LoopUnswitch pass should be able to unswitch the second one -; after unswitching the first one. - - -; CHECK: br i1 %cond1, label %..split_crit_edge, label %.loop_exit.split_crit_edge - -; CHECK: ..split_crit_edge: ; preds = %0 -; CHECK: br label %.split - -; CHECK: .split: ; preds = %..split_crit_edge -; CHECK: br i1 %cond2, label %.split..split.split_crit_edge, label %.split.loop_exit.split1_crit_edge - -; CHECK: .split..split.split_crit_edge: ; preds = %.split -; CHECK: br label %.split.split - -; CHECK: .split.split: ; preds = %.split..split.split_crit_edge -; CHECK: br label %loop_begin - -; CHECK: loop_begin: ; preds = %do_something, %.split.split -; CHECK: br i1 true, label %continue, label %loop_exit - -; CHECK: continue: ; preds = %loop_begin -; CHECK: %var_val = load i32, i32* %var -; CHECK: br i1 true, label %do_something, label %loop_exit - -define i32 @test(i32* %var, i1 %cond1, i1 %cond2) { - br label %loop_begin - -loop_begin: - br i1 %cond1, label %continue, label %loop_exit ; first trivial condition - -continue: - %var_val = load i32, i32* %var - br i1 %cond2, label %do_something, label %loop_exit ; second trivial condition - -do_something: - call void @some_func() noreturn nounwind - br label %loop_begin - -loop_exit: - ret i32 0 -} - - -; We will not be able trivially unswitch on the SwitchInst, as its input -; is a constant. However, since its a constant we should be able to figure -; out that the switch can be folded into a unconditional branch to %continue. -; Then we unswitch on the br inst in %continue. -; -; CHECK: define i32 @test2( -; This is an indication that the loop has been unswitched on %cond1. -; CHECK: br i1 %cond1, label %..split_crit_edge, label %.loop_exit.split_crit_edge - -; CHECK: ..split_crit_edge: ; preds = %0 -; CHECK: br label %.split - -; CHECK: .split: ; preds = %..split_crit_edge -; CHECK: br label %loop_begin - -; CHECK: loop_begin: ; preds = %do_something, %.split -; CHECK: switch i32 - -; CHECK: continue: ; preds = %loop_begin -; CHECK: %var_val = load i32, i32* %var -; CHECK: br i1 true, label %do_something, label %loop_exit - -define i32 @test2(i32* %var, i1 %cond1) { - br label %loop_begin - -loop_begin: - switch i32 1, label %continue [ - i32 0, label %loop_exit - i32 1, label %continue - ] - -continue: - %var_val = load i32, i32* %var - br i1 %cond1, label %do_something, label %loop_exit - -do_something: - call void @some_func() noreturn nounwind - br label %loop_begin - -loop_exit: - ret i32 0 -} - -declare void @some_func() noreturn diff --git a/llvm/test/Transforms/LoopUnswitch/unswitch-equality-undef.ll b/llvm/test/Transforms/LoopUnswitch/unswitch-equality-undef.ll deleted file mode 100644 index c6b49c7281d..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/unswitch-equality-undef.ll +++ /dev/null @@ -1,122 +0,0 @@ -; REQUIRES: asserts -; RUN: opt < %s -instcombine -licm -loop-unswitch -loop-unswitch-threshold=1000 -enable-mssa-loop-dependency=true -verify-memoryssa -disable-output -stats 2>&1| FileCheck %s -; Check no loop unswitch is done because unswitching of equality expr with -; undef is unsafe before the freeze patch is committed. -; CHECK-NOT: Number of branches unswitched - -define void @ham(i64 %arg) local_unnamed_addr { -bb: - %tmp = icmp eq i64 %arg, 0 - br i1 %tmp, label %bb3, label %bb1 - -bb1: ; preds = %bb - %tmp2 = load volatile i64, i64* @global, align 8 - br label %bb3 - -bb3: ; preds = %bb1, %bb - %tmp4 = phi i64 [ %tmp2, %bb1 ], [ undef, %bb ] - %tmp5 = load i64, i64* @global.1, align 8 - br label %bb6 - -bb6: ; preds = %bb21, %bb3 - %tmp7 = phi i64 [ 3, %bb21 ], [ %tmp5, %bb3 ] - %tmp8 = phi i64 [ %tmp25, %bb21 ], [ 0, %bb3 ] - %tmp9 = icmp eq i64 %tmp7, %arg - br i1 %tmp9, label %bb10, label %bb28 - -bb10: ; preds = %bb6 - %tmp11 = icmp eq i64 %tmp7, 0 - br i1 %tmp11, label %bb21, label %bb12 - -bb12: ; preds = %bb10 - %tmp13 = load i64, i64* @global.2, align 8 - %tmp14 = add nsw i64 %tmp13, 1 - store i64 %tmp14, i64* @global.2, align 8 - %tmp15 = load i64, i64* @global.3, align 8 - %tmp16 = icmp eq i64 %tmp15, %tmp4 - br i1 %tmp16, label %bb17, label %bb21 - -bb17: ; preds = %bb12 - %tmp18 = phi i64 [ %tmp15, %bb12 ] - %tmp19 = load i64, i64* @global.4, align 8 - %tmp20 = add nsw i64 %tmp19, %tmp18 - store i64 %tmp20, i64* @global.5, align 8 - br label %bb29 - -bb21: ; preds = %bb12, %bb10 - %tmp22 = load i64, i64* @global.3, align 8 - %tmp23 = load volatile i64, i64* @global, align 8 - %tmp24 = add nsw i64 %tmp23, %tmp22 - store i64 %tmp24, i64* @global.5, align 8 - store i64 3, i64* @global.1, align 8 - %tmp25 = add nsw i64 %tmp8, 1 - %tmp26 = load i64, i64* @global.6, align 8 - %tmp27 = icmp slt i64 %tmp25, %tmp26 - br i1 %tmp27, label %bb6, label %bb28 - -bb28: ; preds = %bb21, %bb6 - br label %bb29 - -bb29: ; preds = %bb28, %bb17 - ret void -} - -define void @zot(i64 %arg, i64 %arg1) local_unnamed_addr { -bb: - %tmp = icmp eq i64 %arg, 0 - %tmp2 = select i1 %tmp, i64 %arg1, i64 undef - %tmp3 = load i64, i64* @global.1, align 8 - br label %bb4 - -bb4: ; preds = %bb19, %bb - %tmp5 = phi i64 [ 3, %bb19 ], [ %tmp3, %bb ] - %tmp6 = phi i64 [ %tmp23, %bb19 ], [ 0, %bb ] - %tmp7 = icmp eq i64 %tmp5, %arg - br i1 %tmp7, label %bb8, label %bb26 - -bb8: ; preds = %bb4 - %tmp9 = icmp eq i64 %tmp5, 0 - br i1 %tmp9, label %bb19, label %bb10 - -bb10: ; preds = %bb8 - %tmp11 = load i64, i64* @global.2, align 8 - %tmp12 = add nsw i64 %tmp11, 1 - store i64 %tmp12, i64* @global.2, align 8 - %tmp13 = load i64, i64* @global.3, align 8 - %tmp14 = icmp eq i64 %tmp13, %tmp2 - br i1 %tmp14, label %bb15, label %bb19 - -bb15: ; preds = %bb10 - %tmp16 = phi i64 [ %tmp13, %bb10 ] - %tmp17 = load i64, i64* @global.4, align 8 - %tmp18 = add nsw i64 %tmp17, %tmp16 - store i64 %tmp18, i64* @global.5, align 8 - br label %bb27 - -bb19: ; preds = %bb10, %bb8 - %tmp20 = load i64, i64* @global.3, align 8 - %tmp21 = load volatile i64, i64* @global, align 8 - %tmp22 = add nsw i64 %tmp21, %tmp20 - store i64 %tmp22, i64* @global.5, align 8 - store i64 3, i64* @global.1, align 8 - %tmp23 = add nsw i64 %tmp6, 1 - %tmp24 = load i64, i64* @global.6, align 8 - %tmp25 = icmp slt i64 %tmp23, %tmp24 - br i1 %tmp25, label %bb4, label %bb26 - -bb26: ; preds = %bb19, %bb4 - br label %bb27 - -bb27: ; preds = %bb26, %bb15 - ret void -} - -@global = common global i64 0, align 8 -@global.1 = common global i64 0, align 8 -@global.2 = common global i64 0, align 8 -@global.3 = common global i64 0, align 8 -@global.4 = common global i64 0, align 8 -@global.5 = common global i64 0, align 8 -@global.6 = common global i64 0, align 8 - - diff --git a/llvm/test/Transforms/LoopUnswitch/unswitch-select.ll b/llvm/test/Transforms/LoopUnswitch/unswitch-select.ll deleted file mode 100644 index 7b62587f53f..00000000000 --- a/llvm/test/Transforms/LoopUnswitch/unswitch-select.ll +++ /dev/null @@ -1,27 +0,0 @@ -; REQUIRES: asserts -; RUN: opt < %s -loop-unswitch -disable-output -stats 2>&1| FileCheck %s -; RUN: opt < %s -loop-unswitch -enable-mssa-loop-dependency=true -verify-memoryssa -disable-output -stats 2>&1| FileCheck %s - -; Check the select statement in the loop will be unswitched. -; CHECK: 1 loop-unswitch - Number of selects unswitched -define i32 @test(i1 zeroext %x, i32 %a) local_unnamed_addr #0 { -entry: - br label %while.cond - -while.cond: ; preds = %while.body, %entry - %i.0 = phi i32 [ 0, %entry ], [ %inc, %while.body ] - %s.0 = phi i32 [ %a, %entry ], [ %add, %while.body ] - %cmp = icmp slt i32 %i.0, 10000 - br i1 %cmp, label %while.body, label %while.end - -while.body: ; preds = %while.cond - %cond = select i1 %x, i32 %a, i32 %i.0 - %add = add nsw i32 %s.0, %cond - %inc = add nsw i32 %i.0, 1 - br label %while.cond - -while.end: ; preds = %while.cond - %s.0.lcssa = phi i32 [ %s.0, %while.cond ] - ret i32 %s.0.lcssa -} - |
