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| author | Pirama Arumuga Nainar <pirama@google.com> | 2015-04-10 22:08:18 +0000 |
|---|---|---|
| committer | Android Git Automerger <android-git-automerger@android.com> | 2015-04-10 22:08:18 +0000 |
| commit | 13a7db5b9c4f5e543d037be68ec3428216bfd550 (patch) | |
| tree | 1b2c9792582e12f5af0b1512e3094425f0dc0df9 /test/CodeGen/X86/fmul-combines.ll | |
| parent | 0eb46f5d1e06a4284663d636a74b06adc3a161d7 (diff) | |
| parent | 31195f0bdca6ee2a5e72d07edf13e1d81206d949 (diff) | |
| download | external_llvm-13a7db5b9c4f5e543d037be68ec3428216bfd550.zip external_llvm-13a7db5b9c4f5e543d037be68ec3428216bfd550.tar.gz external_llvm-13a7db5b9c4f5e543d037be68ec3428216bfd550.tar.bz2 | |
am 31195f0b: Merge "Update aosp/master llvm for rebase to r233350"
* commit '31195f0bdca6ee2a5e72d07edf13e1d81206d949':
Update aosp/master llvm for rebase to r233350
Diffstat (limited to 'test/CodeGen/X86/fmul-combines.ll')
| -rw-r--r-- | test/CodeGen/X86/fmul-combines.ll | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/test/CodeGen/X86/fmul-combines.ll b/test/CodeGen/X86/fmul-combines.ll index 7036511..7d75611 100644 --- a/test/CodeGen/X86/fmul-combines.ll +++ b/test/CodeGen/X86/fmul-combines.ll @@ -103,6 +103,40 @@ define <4 x float> @fmul_v4f32_two_consts_no_splat_multiple_use(<4 x float> %x) ret <4 x float> %a } +; PR22698 - http://llvm.org/bugs/show_bug.cgi?id=22698 +; Make sure that we don't infinite loop swapping constants back and forth. + +define <4 x float> @PR22698_splats(<4 x float> %a) #0 { + %mul1 = fmul fast <4 x float> <float 2.0, float 2.0, float 2.0, float 2.0>, <float 3.0, float 3.0, float 3.0, float 3.0> + %mul2 = fmul fast <4 x float> <float 4.0, float 4.0, float 4.0, float 4.0>, %mul1 + %mul3 = fmul fast <4 x float> %a, %mul2 + ret <4 x float> %mul3 + +; CHECK: float 2.400000e+01 +; CHECK: float 2.400000e+01 +; CHECK: float 2.400000e+01 +; CHECK: float 2.400000e+01 +; CHECK-LABEL: PR22698_splats: +; CHECK: mulps +; CHECK: ret +} + +; Same as above, but verify that non-splat vectors are handled correctly too. +define <4 x float> @PR22698_no_splats(<4 x float> %a) #0 { + %mul1 = fmul fast <4 x float> <float 1.0, float 2.0, float 3.0, float 4.0>, <float 5.0, float 6.0, float 7.0, float 8.0> + %mul2 = fmul fast <4 x float> <float 9.0, float 10.0, float 11.0, float 12.0>, %mul1 + %mul3 = fmul fast <4 x float> %a, %mul2 + ret <4 x float> %mul3 + +; CHECK: float 4.500000e+01 +; CHECK: float 1.200000e+02 +; CHECK: float 2.310000e+02 +; CHECK: float 3.840000e+02 +; CHECK-LABEL: PR22698_no_splats: +; CHECK: mulps +; CHECK: ret +} + ; CHECK-LABEL: fmul_c2_c4_f32: ; CHECK-NOT: addss ; CHECK: mulss |