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| author | Stephen Hines <srhines@google.com> | 2014-12-01 14:51:49 -0800 |
|---|---|---|
| committer | Stephen Hines <srhines@google.com> | 2014-12-02 16:08:10 -0800 |
| commit | 37ed9c199ca639565f6ce88105f9e39e898d82d0 (patch) | |
| tree | 8fb36d3910e3ee4c4e1b7422f4f017108efc52f5 /test/CodeGen/X86/fastmath-optnone.ll | |
| parent | d2327b22152ced7bc46dc629fc908959e8a52d03 (diff) | |
| download | external_llvm-37ed9c199ca639565f6ce88105f9e39e898d82d0.zip external_llvm-37ed9c199ca639565f6ce88105f9e39e898d82d0.tar.gz external_llvm-37ed9c199ca639565f6ce88105f9e39e898d82d0.tar.bz2 | |
Update aosp/master LLVM for rebase to r222494.
Change-Id: Ic787f5e0124df789bd26f3f24680f45e678eef2d
Diffstat (limited to 'test/CodeGen/X86/fastmath-optnone.ll')
| -rw-r--r-- | test/CodeGen/X86/fastmath-optnone.ll | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/test/CodeGen/X86/fastmath-optnone.ll b/test/CodeGen/X86/fastmath-optnone.ll new file mode 100644 index 0000000..0caadff --- /dev/null +++ b/test/CodeGen/X86/fastmath-optnone.ll @@ -0,0 +1,35 @@ +; RUN: llc < %s -mcpu=corei7 -march=x86-64 -mattr=+sse2 | FileCheck %s +; Verify that floating-point operations inside 'optnone' functions +; are not optimized even if unsafe-fp-math is set. + +define float @foo(float %x) #0 { +entry: + %add = fadd fast float %x, %x + %add1 = fadd fast float %add, %x + ret float %add1 +} + +; CHECK-LABEL: @foo +; CHECK-NOT: add +; CHECK: mul +; CHECK-NOT: add +; CHECK: ret + +define float @fooWithOptnone(float %x) #1 { +entry: + %add = fadd fast float %x, %x + %add1 = fadd fast float %add, %x + ret float %add1 +} + +; CHECK-LABEL: @fooWithOptnone +; CHECK-NOT: mul +; CHECK: add +; CHECK-NOT: mul +; CHECK: add +; CHECK-NOT: mul +; CHECK: ret + + +attributes #0 = { "unsafe-fp-math"="true" } +attributes #1 = { noinline optnone "unsafe-fp-math"="true" } |