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Diffstat (limited to 'test/CodeGen/AMDGPU/fsqrt.ll')
| -rw-r--r-- | test/CodeGen/AMDGPU/fsqrt.ll | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/test/CodeGen/AMDGPU/fsqrt.ll b/test/CodeGen/AMDGPU/fsqrt.ll new file mode 100644 index 000000000000..04101346cdf9 --- /dev/null +++ b/test/CodeGen/AMDGPU/fsqrt.ll @@ -0,0 +1,29 @@ +; RUN: llc -march=amdgcn -mcpu=tahiti -verify-machineinstrs < %s | FileCheck %s +; RUN: llc -march=amdgcn -mcpu=tahiti -verify-machineinstrs -enable-unsafe-fp-math < %s | FileCheck %s +; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck %s +; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs -enable-unsafe-fp-math < %s | FileCheck %s + +; Run with unsafe-fp-math to make sure nothing tries to turn this into 1 / rsqrt(x) + +; CHECK: {{^}}fsqrt_f32: +; CHECK: v_sqrt_f32_e32 {{v[0-9]+, v[0-9]+}} + +define void @fsqrt_f32(float addrspace(1)* %out, float addrspace(1)* %in) { + %r0 = load float, float addrspace(1)* %in + %r1 = call float @llvm.sqrt.f32(float %r0) + store float %r1, float addrspace(1)* %out + ret void +} + +; CHECK: {{^}}fsqrt_f64: +; CHECK: v_sqrt_f64_e32 {{v\[[0-9]+:[0-9]+\], v\[[0-9]+:[0-9]+\]}} + +define void @fsqrt_f64(double addrspace(1)* %out, double addrspace(1)* %in) { + %r0 = load double, double addrspace(1)* %in + %r1 = call double @llvm.sqrt.f64(double %r0) + store double %r1, double addrspace(1)* %out + ret void +} + +declare float @llvm.sqrt.f32(float %Val) +declare double @llvm.sqrt.f64(double %Val) |