diff options
Diffstat (limited to 'llvm')
| -rw-r--r-- | llvm/test/Transforms/InstCombine/pr20059.ll | 16 | ||||
| -rw-r--r-- | llvm/test/Transforms/InstCombine/vec_shuffle.ll | 15 |
2 files changed, 15 insertions, 16 deletions
diff --git a/llvm/test/Transforms/InstCombine/pr20059.ll b/llvm/test/Transforms/InstCombine/pr20059.ll deleted file mode 100644 index 0ef315936ff..00000000000 --- a/llvm/test/Transforms/InstCombine/pr20059.ll +++ /dev/null @@ -1,16 +0,0 @@ -; RUN: opt -S -instcombine < %s | FileCheck %s - -; In PR20059 ( http://llvm.org/pr20059 ), shufflevector operations are reordered/removed -; for an srem operation. This is not a valid optimization because it may cause a trap -; on div-by-zero. - -; CHECK-LABEL: @do_not_reorder -; CHECK: %splat1 = shufflevector <4 x i32> %p1, <4 x i32> undef, <4 x i32> zeroinitializer -; CHECK-NEXT: %splat2 = shufflevector <4 x i32> %p2, <4 x i32> undef, <4 x i32> zeroinitializer -; CHECK-NEXT: %retval = srem <4 x i32> %splat1, %splat2 -define <4 x i32> @do_not_reorder(<4 x i32> %p1, <4 x i32> %p2) { - %splat1 = shufflevector <4 x i32> %p1, <4 x i32> undef, <4 x i32> zeroinitializer - %splat2 = shufflevector <4 x i32> %p2, <4 x i32> undef, <4 x i32> zeroinitializer - %retval = srem <4 x i32> %splat1, %splat2 - ret <4 x i32> %retval -} diff --git a/llvm/test/Transforms/InstCombine/vec_shuffle.ll b/llvm/test/Transforms/InstCombine/vec_shuffle.ll index d4d7f167ef0..8db13b67e2f 100644 --- a/llvm/test/Transforms/InstCombine/vec_shuffle.ll +++ b/llvm/test/Transforms/InstCombine/vec_shuffle.ll @@ -406,6 +406,21 @@ define i32 @pr19737(<4 x i32> %in0) { ret i32 %rv } +; In PR20059 ( http://llvm.org/pr20059 ), shufflevector operations are reordered/removed +; for an srem operation. This is not a valid optimization because it may cause a trap +; on div-by-zero. + +define <4 x i32> @pr20059(<4 x i32> %p1, <4 x i32> %p2) { +; CHECK-LABEL: @pr20059( +; CHECK-NEXT: %splat1 = shufflevector <4 x i32> %p1, <4 x i32> undef, <4 x i32> zeroinitializer +; CHECK-NEXT: %splat2 = shufflevector <4 x i32> %p2, <4 x i32> undef, <4 x i32> zeroinitializer +; CHECK-NEXT: %retval = srem <4 x i32> %splat1, %splat2 + %splat1 = shufflevector <4 x i32> %p1, <4 x i32> undef, <4 x i32> zeroinitializer + %splat2 = shufflevector <4 x i32> %p2, <4 x i32> undef, <4 x i32> zeroinitializer + %retval = srem <4 x i32> %splat1, %splat2 + ret <4 x i32> %retval +} + define <4 x i32> @pr20114(<4 x i32> %__mask) { ; CHECK-LABEL: @pr20114 ; CHECK: shufflevector |
