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| author | Stephen Hines <srhines@google.com> | 2014-04-23 16:57:46 -0700 |
|---|---|---|
| committer | Stephen Hines <srhines@google.com> | 2014-04-24 15:53:16 -0700 |
| commit | 36b56886974eae4f9c5ebc96befd3e7bfe5de338 (patch) | |
| tree | e6cfb69fbbd937f450eeb83bfb83b9da3b01275a /test/CodeGen/R600/fneg-fabs.ll | |
| parent | 69a8640022b04415ae9fac62f8ab090601d8f889 (diff) | |
| download | external_llvm-36b56886974eae4f9c5ebc96befd3e7bfe5de338.zip external_llvm-36b56886974eae4f9c5ebc96befd3e7bfe5de338.tar.gz external_llvm-36b56886974eae4f9c5ebc96befd3e7bfe5de338.tar.bz2 | |
Update to LLVM 3.5a.
Change-Id: Ifadecab779f128e62e430c2b4f6ddd84953ed617
Diffstat (limited to 'test/CodeGen/R600/fneg-fabs.ll')
| -rw-r--r-- | test/CodeGen/R600/fneg-fabs.ll | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/test/CodeGen/R600/fneg-fabs.ll b/test/CodeGen/R600/fneg-fabs.ll new file mode 100644 index 0000000..d95e131 --- /dev/null +++ b/test/CodeGen/R600/fneg-fabs.ll @@ -0,0 +1,55 @@ +; RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck %s --check-prefix=R600-CHECK +; RUN: llc < %s -march=r600 -mcpu=SI -verify-machineinstrs | FileCheck %s --check-prefix=SI-CHECK + +; DAGCombiner will transform: +; (fabs (f32 bitcast (i32 a))) => (f32 bitcast (and (i32 a), 0x7FFFFFFF)) +; unless isFabsFree returns true + +; R600-CHECK-LABEL: @fneg_fabs_free +; R600-CHECK-NOT: AND +; R600-CHECK: |PV.{{[XYZW]}}| +; R600-CHECK: -PV +; SI-CHECK-LABEL: @fneg_fabs_free +; SI-CHECK: V_OR_B32 + +define void @fneg_fabs_free(float addrspace(1)* %out, i32 %in) { +entry: + %0 = bitcast i32 %in to float + %1 = call float @fabs(float %0) + %2 = fsub float -0.000000e+00, %1 + store float %2, float addrspace(1)* %out + ret void +} + +; R600-CHECK-LABEL: @fneg_fabs_v2 +; R600-CHECK: |{{(PV|T[0-9])\.[XYZW]}}| +; R600-CHECK: -PV +; R600-CHECK: |{{(PV|T[0-9])\.[XYZW]}}| +; R600-CHECK: -PV +; SI-CHECK-LABEL: @fneg_fabs_v2 +; SI-CHECK: V_OR_B32 +; SI-CHECK: V_OR_B32 +define void @fneg_fabs_v2(<2 x float> addrspace(1)* %out, <2 x float> %in) { +entry: + %0 = call <2 x float> @llvm.fabs.v2f32(<2 x float> %in) + %1 = fsub <2 x float> <float -0.000000e+00, float -0.000000e+00>, %0 + store <2 x float> %1, <2 x float> addrspace(1)* %out + ret void +} + +; SI-CHECK-LABEL: @fneg_fabs_v4 +; SI-CHECK: V_OR_B32 +; SI-CHECK: V_OR_B32 +; SI-CHECK: V_OR_B32 +; SI-CHECK: V_OR_B32 +define void @fneg_fabs_v4(<4 x float> addrspace(1)* %out, <4 x float> %in) { +entry: + %0 = call <4 x float> @llvm.fabs.v4f32(<4 x float> %in) + %1 = fsub <4 x float> <float -0.000000e+00, float -0.000000e+00, float -0.000000e+00, float -0.000000e+00>, %0 + store <4 x float> %1, <4 x float> addrspace(1)* %out + ret void +} + +declare float @fabs(float ) readnone +declare <2 x float> @llvm.fabs.v2f32(<2 x float> ) readnone +declare <4 x float> @llvm.fabs.v4f32(<4 x float> ) readnone |