diff options
| author | Dimitry Andric <dim@FreeBSD.org> | 2017-07-13 19:25:18 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2017-07-13 19:25:18 +0000 |
| commit | ca089b24d48ef6fa8da2d0bb8c25bb802c4a95c0 (patch) | |
| tree | 3a28a772df9b17aef34f49e3c727965ad28c0c93 /test/CodeGen/AMDGPU/enable-no-signed-zeros-fp-math.ll | |
| parent | 9df3605dea17e84f8183581f6103bd0c79e2a606 (diff) | |
Notes
Diffstat (limited to 'test/CodeGen/AMDGPU/enable-no-signed-zeros-fp-math.ll')
| -rw-r--r-- | test/CodeGen/AMDGPU/enable-no-signed-zeros-fp-math.ll | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/test/CodeGen/AMDGPU/enable-no-signed-zeros-fp-math.ll b/test/CodeGen/AMDGPU/enable-no-signed-zeros-fp-math.ll index 6eb1fc1d0cc29..b7dfcd99029a0 100644 --- a/test/CodeGen/AMDGPU/enable-no-signed-zeros-fp-math.ll +++ b/test/CodeGen/AMDGPU/enable-no-signed-zeros-fp-math.ll @@ -2,16 +2,21 @@ ; RUN: llc -march=amdgcn -enable-no-signed-zeros-fp-math=1 < %s | FileCheck -check-prefix=GCN -check-prefix=GCN-UNSAFE %s ; RUN: llc -march=amdgcn -enable-unsafe-fp-math < %s | FileCheck -check-prefix=GCN -check-prefix=GCN-UNSAFE %s +declare i32 @llvm.amdgcn.workitem.id.x() nounwind readnone + ; Test that the -enable-no-signed-zeros-fp-math flag works ; GCN-LABEL: {{^}}fneg_fsub_f32: -; GCN: v_subrev_f32_e32 [[SUB:v[0-9]+]], {{v[0-9]+}}, {{v[0-9]+}} +; GCN: v_sub_f32_e32 [[SUB:v[0-9]+]], {{v[0-9]+}}, {{v[0-9]+}} ; GCN-SAFE: v_xor_b32_e32 v{{[0-9]+}}, 0x80000000, [[SUB]] ; GCN-UNSAFE-NOT: xor define amdgpu_kernel void @fneg_fsub_f32(float addrspace(1)* %out, float addrspace(1)* %in) #0 { - %b_ptr = getelementptr float, float addrspace(1)* %in, i32 1 - %a = load float, float addrspace(1)* %in, align 4 + %tid = call i32 @llvm.amdgcn.workitem.id.x() + %add = add i32 %tid, 1 + %gep = getelementptr float, float addrspace(1)* %in, i32 %tid + %b_ptr = getelementptr float, float addrspace(1)* %in, i32 %add + %a = load float, float addrspace(1)* %gep, align 4 %b = load float, float addrspace(1)* %b_ptr, align 4 %result = fsub float %a, %b %neg.result = fsub float -0.0, %result |