1 files changed, 65 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/AMDGPU/llvm.AMDGPU.fract.ll b/llvm/test/CodeGen/AMDGPU/llvm.AMDGPU.fract.ll
new file mode 100644
index 00000000000..7501b4b7546
--- /dev/null
+++ b/llvm/test/CodeGen/AMDGPU/llvm.AMDGPU.fract.ll
@@ -0,0 +1,65 @@
+; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs -enable-unsafe-fp-math < %s | FileCheck -check-prefix=GCN -check-prefix=SI -check-prefix=FUNC %s
+; RUN: llc -march=amdgcn -mcpu=bonaire -verify-machineinstrs -enable-unsafe-fp-math < %s | FileCheck -check-prefix=GCN -check-prefix=CI -check-prefix=FUNC %s
+; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs -enable-unsafe-fp-math < %s | FileCheck -check-prefix=GCN -check-prefix=CI -check-prefix=FUNC %s
+; RUN: llc -march=r600 -mcpu=cypress -verify-machineinstrs -enable-unsafe-fp-math < %s | FileCheck -check-prefix=EG -check-prefix=FUNC %s
+
+declare float @llvm.fabs.f32(float  %Val)
+declare float @llvm.AMDGPU.fract.f32(float) nounwind readnone
+
+; Legacy name
+declare float @llvm.AMDIL.fraction.f32(float) nounwind readnone
+
+; FUNC-LABEL: {{^}}fract_f32:
+; CI: v_fract_f32_e32 [[RESULT:v[0-9]+]], [[INPUT:v[0-9]+]]
+; SI: v_floor_f32_e32 [[FLR:v[0-9]+]], [[INPUT:v[0-9]+]]
+; SI: v_subrev_f32_e32 [[RESULT:v[0-9]+]], [[FLR]], [[INPUT]]
+; GCN: buffer_store_dword [[RESULT]]
+; EG: FRACT
+define void @fract_f32(float addrspace(1)* %out, float addrspace(1)* %src) nounwind {
+  %val = load float, float addrspace(1)* %src, align 4
+  %fract = call float @llvm.AMDGPU.fract.f32(float %val) nounwind readnone
+  store float %fract, float addrspace(1)* %out, align 4
+  ret void
+}
+
+; FUNC-LABEL: {{^}}fract_f32_legacy_amdil:
+; CI: v_fract_f32_e32 [[RESULT:v[0-9]+]], [[INPUT:v[0-9]+]]
+; SI: v_floor_f32_e32 [[FLR:v[0-9]+]], [[INPUT:v[0-9]+]]
+; SI: v_subrev_f32_e32 [[RESULT:v[0-9]+]], [[FLR]], [[INPUT]]
+; GCN: buffer_store_dword [[RESULT]]
+; EG: FRACT
+define void @fract_f32_legacy_amdil(float addrspace(1)* %out, float addrspace(1)* %src) nounwind {
+  %val = load float, float addrspace(1)* %src, align 4
+  %fract = call float @llvm.AMDIL.fraction.f32(float %val) nounwind readnone
+  store float %fract, float addrspace(1)* %out, align 4
+  ret void
+}
+
+; FUNC-LABEL: {{^}}fract_f32_neg:
+; CI: v_fract_f32_e64 [[RESULT:v[0-9]+]], -[[INPUT:v[0-9]+]]
+; SI: v_floor_f32_e64 [[FLR:v[0-9]+]], -[[INPUT:v[0-9]+]]
+; SI: v_sub_f32_e64 [[RESULT:v[0-9]+]], -[[INPUT]], [[FLR]]
+; GCN: buffer_store_dword [[RESULT]]
+; EG: FRACT
+define void @fract_f32_neg(float addrspace(1)* %out, float addrspace(1)* %src) nounwind {
+  %val = load float, float addrspace(1)* %src, align 4
+  %neg = fsub float 0.0, %val
+  %fract = call float @llvm.AMDGPU.fract.f32(float %neg) nounwind readnone
+  store float %fract, float addrspace(1)* %out, align 4
+  ret void
+}
+
+; FUNC-LABEL: {{^}}fract_f32_neg_abs:
+; CI: v_fract_f32_e64 [[RESULT:v[0-9]+]], -|[[INPUT:v[0-9]+]]|
+; SI: v_floor_f32_e64 [[FLR:v[0-9]+]], -|[[INPUT:v[0-9]+]]|
+; SI: v_sub_f32_e64 [[RESULT:v[0-9]+]], -|[[INPUT]]|, [[FLR]]
+; GCN: buffer_store_dword [[RESULT]]
+; EG: FRACT
+define void @fract_f32_neg_abs(float addrspace(1)* %out, float addrspace(1)* %src) nounwind {
+  %val = load float, float addrspace(1)* %src, align 4
+  %abs = call float @llvm.fabs.f32(float %val)
+  %neg = fsub float 0.0, %abs
+  %fract = call float @llvm.AMDGPU.fract.f32(float %neg) nounwind readnone
+  store float %fract, float addrspace(1)* %out, align 4
+  ret void
+}