diff options
Diffstat (limited to 'llvm/test/CodeGen/X86/shuffle-combine-crash.ll')
| -rw-r--r-- | llvm/test/CodeGen/X86/shuffle-combine-crash.ll | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/llvm/test/CodeGen/X86/shuffle-combine-crash.ll b/llvm/test/CodeGen/X86/shuffle-combine-crash.ll index 06fcaa97389..4141e7edaa7 100644 --- a/llvm/test/CodeGen/X86/shuffle-combine-crash.ll +++ b/llvm/test/CodeGen/X86/shuffle-combine-crash.ll @@ -1,4 +1,5 @@ -; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -mcpu=corei7 +; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py +; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -mcpu=corei7 | FileCheck %s ; Verify that DAGCombiner does not crash when checking if it is ; safe to fold the shuffles in function @sample_test according to rule @@ -15,6 +16,18 @@ ; As a consequence, compiling the function below would have caused a crash. define void @sample_test() { +; CHECK-LABEL: sample_test: +; CHECK: # %bb.0: +; CHECK-NEXT: xorl %eax, %eax +; CHECK-NEXT: testb %al, %al +; CHECK-NEXT: jne .LBB0_2 +; CHECK-NEXT: # %bb.1: +; CHECK-NEXT: movd {{.*#+}} xmm0 = mem[0],zero,zero,zero +; CHECK-NEXT: punpcklbw {{.*#+}} xmm0 = xmm0[0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7] +; CHECK-NEXT: pshuflw {{.*#+}} xmm0 = xmm0[0,2,2,3,4,5,6,7] +; CHECK-NEXT: movd %xmm0, (%rax) +; CHECK-NEXT: .LBB0_2: +; CHECK-NEXT: retq br i1 undef, label %5, label %1 ; <label>:1 ; preds = %0 |
