diff options
Diffstat (limited to 'llvm/test/Transforms/InstSimplify/shift.ll')
-rw-r--r-- | llvm/test/Transforms/InstSimplify/shift.ll | 239 |
1 files changed, 0 insertions, 239 deletions
diff --git a/llvm/test/Transforms/InstSimplify/shift.ll b/llvm/test/Transforms/InstSimplify/shift.ll deleted file mode 100644 index cbffd371853..00000000000 --- a/llvm/test/Transforms/InstSimplify/shift.ll +++ /dev/null @@ -1,239 +0,0 @@ -; NOTE: Assertions have been autogenerated by utils/update_test_checks.py -; RUN: opt < %s -instsimplify -S | FileCheck %s - -define i47 @shl_by_0(i47 %A) { -; CHECK-LABEL: @shl_by_0( -; CHECK-NEXT: ret i47 [[A:%.*]] -; - %B = shl i47 %A, 0 - ret i47 %B -} - -define i41 @shl_0(i41 %X) { -; CHECK-LABEL: @shl_0( -; CHECK-NEXT: ret i41 0 -; - %B = shl i41 0, %X - ret i41 %B -} - -define <2 x i41> @shl_0_vec_undef_elt(<2 x i41> %X) { -; CHECK-LABEL: @shl_0_vec_undef_elt( -; CHECK-NEXT: ret <2 x i41> zeroinitializer -; - %B = shl <2 x i41> <i41 0, i41 undef>, %X - ret <2 x i41> %B -} - -define i41 @ashr_by_0(i41 %A) { -; CHECK-LABEL: @ashr_by_0( -; CHECK-NEXT: ret i41 [[A:%.*]] -; - %B = ashr i41 %A, 0 - ret i41 %B -} - -define i39 @ashr_0(i39 %X) { -; CHECK-LABEL: @ashr_0( -; CHECK-NEXT: ret i39 0 -; - %B = ashr i39 0, %X - ret i39 %B -} - -define <2 x i141> @ashr_0_vec_undef_elt(<2 x i141> %X) { -; CHECK-LABEL: @ashr_0_vec_undef_elt( -; CHECK-NEXT: ret <2 x i141> zeroinitializer -; - %B = shl <2 x i141> <i141 undef, i141 0>, %X - ret <2 x i141> %B -} - -define i55 @lshr_by_bitwidth(i55 %A) { -; CHECK-LABEL: @lshr_by_bitwidth( -; CHECK-NEXT: ret i55 undef -; - %B = lshr i55 %A, 55 - ret i55 %B -} - -define i32 @shl_by_bitwidth(i32 %A) { -; CHECK-LABEL: @shl_by_bitwidth( -; CHECK-NEXT: ret i32 undef -; - %B = shl i32 %A, 32 - ret i32 %B -} - -define <4 x i32> @lshr_by_bitwidth_splat(<4 x i32> %A) { -; CHECK-LABEL: @lshr_by_bitwidth_splat( -; CHECK-NEXT: ret <4 x i32> undef -; - %B = lshr <4 x i32> %A, <i32 32, i32 32, i32 32, i32 32> ;; shift all bits out - ret <4 x i32> %B -} - -define <4 x i32> @lshr_by_0_splat(<4 x i32> %A) { -; CHECK-LABEL: @lshr_by_0_splat( -; CHECK-NEXT: ret <4 x i32> [[A:%.*]] -; - %B = lshr <4 x i32> %A, zeroinitializer - ret <4 x i32> %B -} - -define <4 x i32> @shl_by_bitwidth_splat(<4 x i32> %A) { -; CHECK-LABEL: @shl_by_bitwidth_splat( -; CHECK-NEXT: ret <4 x i32> undef -; - %B = shl <4 x i32> %A, <i32 32, i32 32, i32 32, i32 32> ;; shift all bits out - ret <4 x i32> %B -} - -define i32 @ashr_undef() { -; CHECK-LABEL: @ashr_undef( -; CHECK-NEXT: ret i32 0 -; - %B = ashr i32 undef, 2 ;; top two bits must be equal, so not undef - ret i32 %B -} - -define i32 @ashr_undef_variable_shift_amount(i32 %A) { -; CHECK-LABEL: @ashr_undef_variable_shift_amount( -; CHECK-NEXT: ret i32 0 -; - %B = ashr i32 undef, %A ;; top %A bits must be equal, so not undef - ret i32 %B -} - -define i32 @ashr_all_ones(i32 %A) { -; CHECK-LABEL: @ashr_all_ones( -; CHECK-NEXT: ret i32 -1 -; - %B = ashr i32 -1, %A - ret i32 %B -} - -define <3 x i8> @ashr_all_ones_vec_with_undef_elts(<3 x i8> %x, <3 x i8> %y) { -; CHECK-LABEL: @ashr_all_ones_vec_with_undef_elts( -; CHECK-NEXT: ret <3 x i8> <i8 -1, i8 -1, i8 -1> -; - %sh = ashr <3 x i8> <i8 undef, i8 -1, i8 undef>, %y - ret <3 x i8> %sh -} - -define i8 @lshr_by_sext_bool(i1 %x, i8 %y) { -; CHECK-LABEL: @lshr_by_sext_bool( -; CHECK-NEXT: ret i8 [[Y:%.*]] -; - %s = sext i1 %x to i8 - %r = lshr i8 %y, %s - ret i8 %r -} - -define <2 x i8> @lshr_by_sext_bool_vec(<2 x i1> %x, <2 x i8> %y) { -; CHECK-LABEL: @lshr_by_sext_bool_vec( -; CHECK-NEXT: ret <2 x i8> [[Y:%.*]] -; - %s = sext <2 x i1> %x to <2 x i8> - %r = lshr <2 x i8> %y, %s - ret <2 x i8> %r -} - -define i8 @ashr_by_sext_bool(i1 %x, i8 %y) { -; CHECK-LABEL: @ashr_by_sext_bool( -; CHECK-NEXT: ret i8 [[Y:%.*]] -; - %s = sext i1 %x to i8 - %r = ashr i8 %y, %s - ret i8 %r -} - -define <2 x i8> @ashr_by_sext_bool_vec(<2 x i1> %x, <2 x i8> %y) { -; CHECK-LABEL: @ashr_by_sext_bool_vec( -; CHECK-NEXT: ret <2 x i8> [[Y:%.*]] -; - %s = sext <2 x i1> %x to <2 x i8> - %r = ashr <2 x i8> %y, %s - ret <2 x i8> %r -} - -define i8 @shl_by_sext_bool(i1 %x, i8 %y) { -; CHECK-LABEL: @shl_by_sext_bool( -; CHECK-NEXT: ret i8 [[Y:%.*]] -; - %s = sext i1 %x to i8 - %r = shl i8 %y, %s - ret i8 %r -} - -define <2 x i8> @shl_by_sext_bool_vec(<2 x i1> %x, <2 x i8> %y) { -; CHECK-LABEL: @shl_by_sext_bool_vec( -; CHECK-NEXT: ret <2 x i8> [[Y:%.*]] -; - %s = sext <2 x i1> %x to <2 x i8> - %r = shl <2 x i8> %y, %s - ret <2 x i8> %r -} - -define i64 @shl_or_shr(i32 %a, i32 %b) { -; CHECK-LABEL: @shl_or_shr( -; CHECK-NEXT: [[TMP1:%.*]] = zext i32 [[A:%.*]] to i64 -; CHECK-NEXT: ret i64 [[TMP1]] -; - %tmp1 = zext i32 %a to i64 - %tmp2 = zext i32 %b to i64 - %tmp3 = shl nuw i64 %tmp1, 32 - %tmp4 = or i64 %tmp2, %tmp3 - %tmp5 = lshr i64 %tmp4, 32 - ret i64 %tmp5 -} - -; Since shift count of shl is smaller than the size of %b, OR cannot be eliminated. -define i64 @shl_or_shr2(i32 %a, i32 %b) { -; CHECK-LABEL: @shl_or_shr2( -; CHECK-NEXT: [[TMP1:%.*]] = zext i32 [[A:%.*]] to i64 -; CHECK-NEXT: [[TMP2:%.*]] = zext i32 [[B:%.*]] to i64 -; CHECK-NEXT: [[TMP3:%.*]] = shl nuw i64 [[TMP1]], 31 -; CHECK-NEXT: [[TMP4:%.*]] = or i64 [[TMP2]], [[TMP3]] -; CHECK-NEXT: [[TMP5:%.*]] = lshr i64 [[TMP4]], 31 -; CHECK-NEXT: ret i64 [[TMP5]] -; - %tmp1 = zext i32 %a to i64 - %tmp2 = zext i32 %b to i64 - %tmp3 = shl nuw i64 %tmp1, 31 - %tmp4 = or i64 %tmp2, %tmp3 - %tmp5 = lshr i64 %tmp4, 31 - ret i64 %tmp5 -} - -; Unit test for vector integer -define <2 x i64> @shl_or_shr1v(<2 x i32> %a, <2 x i32> %b) { -; CHECK-LABEL: @shl_or_shr1v( -; CHECK-NEXT: [[TMP1:%.*]] = zext <2 x i32> [[A:%.*]] to <2 x i64> -; CHECK-NEXT: ret <2 x i64> [[TMP1]] -; - %tmp1 = zext <2 x i32> %a to <2 x i64> - %tmp2 = zext <2 x i32> %b to <2 x i64> - %tmp3 = shl nuw <2 x i64> %tmp1, <i64 32, i64 32> - %tmp4 = or <2 x i64> %tmp3, %tmp2 - %tmp5 = lshr <2 x i64> %tmp4, <i64 32, i64 32> - ret <2 x i64> %tmp5 -} - -; Negative unit test for vector integer -define <2 x i64> @shl_or_shr2v(<2 x i32> %a, <2 x i32> %b) { -; CHECK-LABEL: @shl_or_shr2v( -; CHECK-NEXT: [[TMP1:%.*]] = zext <2 x i32> [[A:%.*]] to <2 x i64> -; CHECK-NEXT: [[TMP2:%.*]] = zext <2 x i32> [[B:%.*]] to <2 x i64> -; CHECK-NEXT: [[TMP3:%.*]] = shl nuw <2 x i64> [[TMP1]], <i64 31, i64 31> -; CHECK-NEXT: [[TMP4:%.*]] = or <2 x i64> [[TMP2]], [[TMP3]] -; CHECK-NEXT: [[TMP5:%.*]] = lshr <2 x i64> [[TMP4]], <i64 31, i64 31> -; CHECK-NEXT: ret <2 x i64> [[TMP5]] -; - %tmp1 = zext <2 x i32> %a to <2 x i64> - %tmp2 = zext <2 x i32> %b to <2 x i64> - %tmp3 = shl nuw <2 x i64> %tmp1, <i64 31, i64 31> - %tmp4 = or <2 x i64> %tmp2, %tmp3 - %tmp5 = lshr <2 x i64> %tmp4, <i64 31, i64 31> - ret <2 x i64> %tmp5 -} |