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| author | Sanjay Patel <spatel@rotateright.com> | 2016-03-07 22:53:23 +0000 |
|---|---|---|
| committer | Sanjay Patel <spatel@rotateright.com> | 2016-03-07 22:53:23 +0000 |
| commit | 55c0dd4b263f3331a112ddd8cb4b5f9055758c86 (patch) | |
| tree | 75a5fb6f3cafadc5a360140ac8a5851626ce46ec /llvm/test/CodeGen/X86/fp-une-cmp.ll | |
| parent | 41bea872ddb518c4c004d649002f2937ae1d2896 (diff) | |
| download | bcm5719-llvm-55c0dd4b263f3331a112ddd8cb4b5f9055758c86.tar.gz bcm5719-llvm-55c0dd4b263f3331a112ddd8cb4b5f9055758c86.zip | |
[x86] simplify test and tighten checks
I noticed this test as part of:
http://reviews.llvm.org/D11393
...which is confusing enough as-is.
Let's show the exact codegen, so the changes will be more obvious.
llvm-svn: 262874
Diffstat (limited to 'llvm/test/CodeGen/X86/fp-une-cmp.ll')
| -rw-r--r-- | llvm/test/CodeGen/X86/fp-une-cmp.ll | 37 |
1 files changed, 22 insertions, 15 deletions
diff --git a/llvm/test/CodeGen/X86/fp-une-cmp.ll b/llvm/test/CodeGen/X86/fp-une-cmp.ll index 7f772d11da9..e0b8f61ff6f 100644 --- a/llvm/test/CodeGen/X86/fp-une-cmp.ll +++ b/llvm/test/CodeGen/X86/fp-une-cmp.ll @@ -1,4 +1,6 @@ -; RUN: llc < %s -march=x86 -mattr=sse4.1 | FileCheck %s +; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py +; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s + ; <rdar://problem/7859988> ; Make sure we don't generate more jumps than we need to. We used to generate @@ -19,25 +21,30 @@ ; addsd ... ; LBB0_2: -; CHECK: func -; CHECK: jne [[LABEL:.*]] -; CHECK-NEXT: jp [[LABEL]] -; CHECK-NOT: jmp +define double @rdar_7859988(double %x, double %y) nounwind readnone optsize ssp { +; CHECK-LABEL: rdar_7859988: +; CHECK: # BB#0: # %entry +; CHECK-NEXT: mulsd %xmm1, %xmm0 +; CHECK-NEXT: xorpd %xmm1, %xmm1 +; CHECK-NEXT: ucomisd %xmm1, %xmm0 +; CHECK-NEXT: jne .LBB0_2 +; CHECK-NEXT: jp .LBB0_2 +; CHECK-NEXT: # BB#1: # %bb1 +; CHECK-NEXT: addsd {{.*}}(%rip), %xmm0 +; CHECK-NEXT: .LBB0_2: # %bb2 +; CHECK-NEXT: retq -define float @func(float %x, float %y) nounwind readnone optsize ssp { entry: - %0 = fpext float %x to double - %1 = fpext float %y to double - %2 = fmul double %0, %1 - %3 = fcmp une double %2, 0.000000e+00 - br i1 %3, label %bb2, label %bb1 + %mul = fmul double %x, %y + %cmp = fcmp une double %mul, 0.000000e+00 + br i1 %cmp, label %bb2, label %bb1 bb1: - %4 = fadd double %2, -1.000000e+00 + %add = fadd double %mul, -1.000000e+00 br label %bb2 bb2: - %.0.in = phi double [ %4, %bb1 ], [ %2, %entry ] - %.0 = fptrunc double %.0.in to float - ret float %.0 + %phi = phi double [ %add, %bb1 ], [ %mul, %entry ] + ret double %phi } + |
