1 files changed, 83 insertions, 0 deletions
diff --git a/test/CodeGen/R600/cvt_rpi_i32_f32.ll b/test/CodeGen/R600/cvt_rpi_i32_f32.ll
new file mode 100644
index 0000000..864ac40
--- /dev/null
+++ b/test/CodeGen/R600/cvt_rpi_i32_f32.ll
@@ -0,0 +1,83 @@
+; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI-SAFE -check-prefix=SI -check-prefix=FUNC %s
+; RUN: llc -march=amdgcn -mcpu=SI -enable-no-nans-fp-math -verify-machineinstrs < %s | FileCheck -check-prefix=SI-NONAN -check-prefix=SI -check-prefix=FUNC %s
+; RUN: llc -march=amdgcn -mcpu=tonga < %s | FileCheck -check-prefix=SI-SAFE -check-prefix=SI -check-prefix=FUNC %s
+
+declare float @llvm.fabs.f32(float) #1
+declare float @llvm.floor.f32(float) #1
+
+; FUNC-LABEL: {{^}}cvt_rpi_i32_f32:
+; SI-SAFE-NOT: v_cvt_rpi_i32_f32
+; SI-NONAN: v_cvt_rpi_i32_f32_e32 v{{[0-9]+}}, s{{[0-9]+}}
+; SI: s_endpgm
+define void @cvt_rpi_i32_f32(i32 addrspace(1)* %out, float %x) #0 {
+  %fadd = fadd float %x, 0.5
+  %floor = call float @llvm.floor.f32(float %fadd) #1
+  %cvt = fptosi float %floor to i32
+  store i32 %cvt, i32 addrspace(1)* %out
+  ret void
+}
+
+; FUNC-LABEL: {{^}}cvt_rpi_i32_f32_fabs:
+; SI-SAFE-NOT: v_cvt_rpi_i32_f32
+; SI-NONAN: v_cvt_rpi_i32_f32_e64 v{{[0-9]+}}, |s{{[0-9]+}}|{{$}}
+; SI: s_endpgm
+define void @cvt_rpi_i32_f32_fabs(i32 addrspace(1)* %out, float %x) #0 {
+  %x.fabs = call float @llvm.fabs.f32(float %x) #1
+  %fadd = fadd float %x.fabs, 0.5
+  %floor = call float @llvm.floor.f32(float %fadd) #1
+  %cvt = fptosi float %floor to i32
+  store i32 %cvt, i32 addrspace(1)* %out
+  ret void
+}
+
+; FIXME: This doesn't work because it forms fsub 0.5, x
+; FUNC-LABEL: {{^}}cvt_rpi_i32_f32_fneg:
+; XSI-NONAN: v_cvt_rpi_i32_f32_e64 v{{[0-9]+}}, -s{{[0-9]+}}
+; SI: v_sub_f32_e64 [[TMP:v[0-9]+]], 0.5, s{{[0-9]+}}
+; SI-SAFE-NOT: v_cvt_flr_i32_f32
+; SI-NONAN: v_cvt_flr_i32_f32_e32 {{v[0-9]+}}, [[TMP]]
+; SI: s_endpgm
+define void @cvt_rpi_i32_f32_fneg(i32 addrspace(1)* %out, float %x) #0 {
+  %x.fneg = fsub float -0.000000e+00, %x
+  %fadd = fadd float %x.fneg, 0.5
+  %floor = call float @llvm.floor.f32(float %fadd) #1
+  %cvt = fptosi float %floor to i32
+  store i32 %cvt, i32 addrspace(1)* %out
+  ret void
+}
+
+; FIXME: This doesn't work for same reason as above
+; FUNC-LABEL: {{^}}cvt_rpi_i32_f32_fabs_fneg:
+; SI-SAFE-NOT: v_cvt_rpi_i32_f32
+; XSI-NONAN: v_cvt_rpi_i32_f32_e64 v{{[0-9]+}}, -|s{{[0-9]+}}|
+
+; SI: v_sub_f32_e64 [[TMP:v[0-9]+]], 0.5, |s{{[0-9]+}}|
+; SI-SAFE-NOT: v_cvt_flr_i32_f32
+; SI-NONAN: v_cvt_flr_i32_f32_e32 {{v[0-9]+}}, [[TMP]]
+; SI: s_endpgm
+define void @cvt_rpi_i32_f32_fabs_fneg(i32 addrspace(1)* %out, float %x) #0 {
+  %x.fabs = call float @llvm.fabs.f32(float %x) #1
+  %x.fabs.fneg = fsub float -0.000000e+00, %x.fabs
+  %fadd = fadd float %x.fabs.fneg, 0.5
+  %floor = call float @llvm.floor.f32(float %fadd) #1
+  %cvt = fptosi float %floor to i32
+  store i32 %cvt, i32 addrspace(1)* %out
+  ret void
+}
+
+; FUNC-LABEL: {{^}}no_cvt_rpi_i32_f32_0:
+; SI-NOT: v_cvt_rpi_i32_f32
+; SI: v_add_f32
+; SI: v_floor_f32
+; SI: v_cvt_u32_f32
+; SI: s_endpgm
+define void @no_cvt_rpi_i32_f32_0(i32 addrspace(1)* %out, float %x) #0 {
+  %fadd = fadd float %x, 0.5
+  %floor = call float @llvm.floor.f32(float %fadd) #1
+  %cvt = fptoui float %floor to i32
+  store i32 %cvt, i32 addrspace(1)* %out
+  ret void
+}
+
+attributes #0 = { nounwind }
+attributes #1 = { nounwind readnone }