diff options
Diffstat (limited to 'test/CodeGen/X86/break-sse-dep.ll')
-rw-r--r-- | test/CodeGen/X86/break-sse-dep.ll | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/test/CodeGen/X86/break-sse-dep.ll b/test/CodeGen/X86/break-sse-dep.ll new file mode 100644 index 0000000..00c943f --- /dev/null +++ b/test/CodeGen/X86/break-sse-dep.ll @@ -0,0 +1,28 @@ +; RUN: llc < %s -march=x86-64 -mattr=+sse2,+break-sse-dep | FileCheck %s --check-prefix=YES +; RUN: llc < %s -march=x86-64 -mattr=+sse2,-break-sse-dep | FileCheck %s --check-prefix=NO + +define double @t1(float* nocapture %x) nounwind readonly ssp { +entry: +; YES: t1: +; YES: movss (%rdi), %xmm0 +; YES; cvtss2sd %xmm0, %xmm0 + +; NO: t1: +; NO; cvtss2sd (%rdi), %xmm0 + %0 = load float* %x, align 4 + %1 = fpext float %0 to double + ret double %1 +} + +define float @t2(double* nocapture %x) nounwind readonly ssp { +entry: +; YES: t2: +; YES: movsd (%rdi), %xmm0 +; YES; cvtsd2ss %xmm0, %xmm0 + +; NO: t2: +; NO; cvtsd2ss (%rdi), %xmm0 + %0 = load double* %x, align 8 + %1 = fptrunc double %0 to float + ret float %1 +} |