1 ; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI-SAFE -check-prefix=SI -check-prefix=FUNC %s 2 ; 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 3 ; RUN: llc -march=amdgcn -mcpu=tonga < %s | FileCheck -check-prefix=SI-SAFE -check-prefix=SI -check-prefix=FUNC %s 4 5 declare float @llvm.fabs.f32(float) #1 6 declare float @llvm.floor.f32(float) #1 7 8 ; FUNC-LABEL: {{^}}cvt_rpi_i32_f32: 9 ; SI-SAFE-NOT: v_cvt_rpi_i32_f32 10 ; SI-NONAN: v_cvt_rpi_i32_f32_e32 v{{[0-9]+}}, s{{[0-9]+}} 11 ; SI: s_endpgm 12 define void @cvt_rpi_i32_f32(i32 addrspace(1)* %out, float %x) #0 { 13 %fadd = fadd float %x, 0.5 14 %floor = call float @llvm.floor.f32(float %fadd) #1 15 %cvt = fptosi float %floor to i32 16 store i32 %cvt, i32 addrspace(1)* %out 17 ret void 18 } 19 20 ; FUNC-LABEL: {{^}}cvt_rpi_i32_f32_fabs: 21 ; SI-SAFE-NOT: v_cvt_rpi_i32_f32 22 ; SI-NONAN: v_cvt_rpi_i32_f32_e64 v{{[0-9]+}}, |s{{[0-9]+}}|{{$}} 23 ; SI: s_endpgm 24 define void @cvt_rpi_i32_f32_fabs(i32 addrspace(1)* %out, float %x) #0 { 25 %x.fabs = call float @llvm.fabs.f32(float %x) #1 26 %fadd = fadd float %x.fabs, 0.5 27 %floor = call float @llvm.floor.f32(float %fadd) #1 28 %cvt = fptosi float %floor to i32 29 store i32 %cvt, i32 addrspace(1)* %out 30 ret void 31 } 32 33 ; FIXME: This doesn't work because it forms fsub 0.5, x 34 ; FUNC-LABEL: {{^}}cvt_rpi_i32_f32_fneg: 35 ; XSI-NONAN: v_cvt_rpi_i32_f32_e64 v{{[0-9]+}}, -s{{[0-9]+}} 36 ; SI: v_sub_f32_e64 [[TMP:v[0-9]+]], 0.5, s{{[0-9]+}} 37 ; SI-SAFE-NOT: v_cvt_flr_i32_f32 38 ; SI-NONAN: v_cvt_flr_i32_f32_e32 {{v[0-9]+}}, [[TMP]] 39 ; SI: s_endpgm 40 define void @cvt_rpi_i32_f32_fneg(i32 addrspace(1)* %out, float %x) #0 { 41 %x.fneg = fsub float -0.000000e+00, %x 42 %fadd = fadd float %x.fneg, 0.5 43 %floor = call float @llvm.floor.f32(float %fadd) #1 44 %cvt = fptosi float %floor to i32 45 store i32 %cvt, i32 addrspace(1)* %out 46 ret void 47 } 48 49 ; FIXME: This doesn't work for same reason as above 50 ; FUNC-LABEL: {{^}}cvt_rpi_i32_f32_fabs_fneg: 51 ; SI-SAFE-NOT: v_cvt_rpi_i32_f32 52 ; XSI-NONAN: v_cvt_rpi_i32_f32_e64 v{{[0-9]+}}, -|s{{[0-9]+}}| 53 54 ; SI: v_sub_f32_e64 [[TMP:v[0-9]+]], 0.5, |s{{[0-9]+}}| 55 ; SI-SAFE-NOT: v_cvt_flr_i32_f32 56 ; SI-NONAN: v_cvt_flr_i32_f32_e32 {{v[0-9]+}}, [[TMP]] 57 ; SI: s_endpgm 58 define void @cvt_rpi_i32_f32_fabs_fneg(i32 addrspace(1)* %out, float %x) #0 { 59 %x.fabs = call float @llvm.fabs.f32(float %x) #1 60 %x.fabs.fneg = fsub float -0.000000e+00, %x.fabs 61 %fadd = fadd float %x.fabs.fneg, 0.5 62 %floor = call float @llvm.floor.f32(float %fadd) #1 63 %cvt = fptosi float %floor to i32 64 store i32 %cvt, i32 addrspace(1)* %out 65 ret void 66 } 67 68 ; FUNC-LABEL: {{^}}no_cvt_rpi_i32_f32_0: 69 ; SI-NOT: v_cvt_rpi_i32_f32 70 ; SI: v_add_f32 71 ; SI: v_floor_f32 72 ; SI: v_cvt_u32_f32 73 ; SI: s_endpgm 74 define void @no_cvt_rpi_i32_f32_0(i32 addrspace(1)* %out, float %x) #0 { 75 %fadd = fadd float %x, 0.5 76 %floor = call float @llvm.floor.f32(float %fadd) #1 77 %cvt = fptoui float %floor to i32 78 store i32 %cvt, i32 addrspace(1)* %out 79 ret void 80 } 81 82 attributes #0 = { nounwind } 83 attributes #1 = { nounwind readnone } 84
