diff options
Diffstat (limited to 'llvm/test/Transforms/LoopStrengthReduce/X86/nested-loop.ll')
| -rw-r--r-- | llvm/test/Transforms/LoopStrengthReduce/X86/nested-loop.ll | 93 |
1 files changed, 0 insertions, 93 deletions
diff --git a/llvm/test/Transforms/LoopStrengthReduce/X86/nested-loop.ll b/llvm/test/Transforms/LoopStrengthReduce/X86/nested-loop.ll deleted file mode 100644 index b9af5a0c68a..00000000000 --- a/llvm/test/Transforms/LoopStrengthReduce/X86/nested-loop.ll +++ /dev/null @@ -1,93 +0,0 @@ -; NOTE: Assertions have been autogenerated by utils/update_test_checks.py -; RUN: opt -loop-reduce -S < %s | FileCheck %s - -; Check when we use an outerloop induction variable inside of an innerloop -; induction value expr, LSR can still choose to use single induction variable -; for the innerloop and share it in multiple induction value exprs. - -target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" -target triple = "x86_64-unknown-linux-gnu" - -define void @foo(i32 %size, i32 %nsteps, i32 %hsize, i32* %lined, i8* %maxarray) { -; CHECK-LABEL: @foo( -; CHECK-NEXT: entry: -; CHECK-NEXT: [[CMP215:%.*]] = icmp sgt i32 [[SIZE:%.*]], 1 -; CHECK-NEXT: [[T0:%.*]] = zext i32 [[SIZE]] to i64 -; CHECK-NEXT: [[T1:%.*]] = sext i32 [[NSTEPS:%.*]] to i64 -; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[T0]], -1 -; CHECK-NEXT: br label [[FOR_BODY:%.*]] -; CHECK: for.body: -; CHECK-NEXT: [[LSR_IV1:%.*]] = phi i64 [ [[LSR_IV_NEXT2:%.*]], [[FOR_INC:%.*]] ], [ 1, [[ENTRY:%.*]] ] -; CHECK-NEXT: [[INDVARS_IV2:%.*]] = phi i64 [ [[INDVARS_IV_NEXT3:%.*]], [[FOR_INC]] ], [ 0, [[ENTRY]] ] -; CHECK-NEXT: br i1 [[CMP215]], label [[FOR_BODY2_PREHEADER:%.*]], label [[FOR_INC]] -; CHECK: for.body2.preheader: -; CHECK-NEXT: br label [[FOR_BODY2:%.*]] -; CHECK: for.body2: -; CHECK-NEXT: [[LSR_IV3:%.*]] = phi i8* [ [[SCEVGEP:%.*]], [[FOR_BODY2]] ], [ [[MAXARRAY:%.*]], [[FOR_BODY2_PREHEADER]] ] -; CHECK-NEXT: [[LSR_IV:%.*]] = phi i64 [ [[LSR_IV_NEXT:%.*]], [[FOR_BODY2]] ], [ [[TMP0]], [[FOR_BODY2_PREHEADER]] ] -; CHECK-NEXT: [[SCEVGEP6:%.*]] = getelementptr i8, i8* [[LSR_IV3]], i64 1 -; CHECK-NEXT: [[V1:%.*]] = load i8, i8* [[SCEVGEP6]], align 1 -; CHECK-NEXT: [[SCEVGEP5:%.*]] = getelementptr i8, i8* [[LSR_IV3]], i64 [[TMP0]] -; CHECK-NEXT: [[V2:%.*]] = load i8, i8* [[SCEVGEP5]], align 1 -; CHECK-NEXT: [[TMPV:%.*]] = xor i8 [[V1]], [[V2]] -; CHECK-NEXT: [[SCEVGEP4:%.*]] = getelementptr i8, i8* [[LSR_IV3]], i64 [[LSR_IV1]] -; CHECK-NEXT: store i8 [[TMPV]], i8* [[SCEVGEP4]], align 1 -; CHECK-NEXT: [[LSR_IV_NEXT]] = add i64 [[LSR_IV]], -1 -; CHECK-NEXT: [[SCEVGEP]] = getelementptr i8, i8* [[LSR_IV3]], i64 1 -; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[LSR_IV_NEXT]], 0 -; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY2]], label [[FOR_INC_LOOPEXIT:%.*]] -; CHECK: for.inc.loopexit: -; CHECK-NEXT: br label [[FOR_INC]] -; CHECK: for.inc: -; CHECK-NEXT: [[INDVARS_IV_NEXT3]] = add nuw nsw i64 [[INDVARS_IV2]], 1 -; CHECK-NEXT: [[LSR_IV_NEXT2]] = add nuw nsw i64 [[LSR_IV1]], [[T0]] -; CHECK-NEXT: [[CMP:%.*]] = icmp slt i64 [[INDVARS_IV_NEXT3]], [[T1]] -; CHECK-NEXT: br i1 [[CMP]], label [[FOR_BODY]], label [[FOR_END_LOOPEXIT:%.*]] -; CHECK: for.end.loopexit: -; CHECK-NEXT: ret void -; -entry: - %cmp215 = icmp sgt i32 %size, 1 - %t0 = zext i32 %size to i64 - %t1 = sext i32 %nsteps to i64 - %sub2 = sub i64 %t0, 2 - br label %for.body - -for.body: ; preds = %for.inc, %entry - %indvars.iv2 = phi i64 [ %indvars.iv.next3, %for.inc ], [ 0, %entry ] - %t2 = mul nsw i64 %indvars.iv2, %t0 - br i1 %cmp215, label %for.body2.preheader, label %for.inc - -for.body2.preheader: ; preds = %for.body - br label %for.body2 - -; Check LSR only generates two induction variables for for.body2 one for compare and -; one to shared by multiple array accesses. - -for.body2: ; preds = %for.body2.preheader, %for.body2 - %indvars.iv = phi i64 [ 1, %for.body2.preheader ], [ %indvars.iv.next, %for.body2 ] - %arrayidx1 = getelementptr inbounds i8, i8* %maxarray, i64 %indvars.iv - %v1 = load i8, i8* %arrayidx1, align 1 - %idx2 = add nsw i64 %indvars.iv, %sub2 - %arrayidx2 = getelementptr inbounds i8, i8* %maxarray, i64 %idx2 - %v2 = load i8, i8* %arrayidx2, align 1 - %tmpv = xor i8 %v1, %v2 - %t4 = add nsw i64 %t2, %indvars.iv - %add.ptr = getelementptr inbounds i8, i8* %maxarray, i64 %t4 - store i8 %tmpv, i8* %add.ptr, align 1 - %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 - %wide.trip.count = zext i32 %size to i64 - %exitcond = icmp ne i64 %indvars.iv.next, %wide.trip.count - br i1 %exitcond, label %for.body2, label %for.inc.loopexit - -for.inc.loopexit: ; preds = %for.body2 - br label %for.inc - -for.inc: ; preds = %for.inc.loopexit, %for.body - %indvars.iv.next3 = add nuw nsw i64 %indvars.iv2, 1 - %cmp = icmp slt i64 %indvars.iv.next3, %t1 - br i1 %cmp, label %for.body, label %for.end.loopexit - -for.end.loopexit: ; preds = %for.inc - ret void -} |
