1 ; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=SI-SAFE,GCN,SI %s
2 ; RUN: llc -enable-no-nans-fp-math -enable-no-signed-zeros-fp-math -march=amdgcn -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=SI-NONAN,GCN,SI %s
4 ; RUN: llc -march=amdgcn -mcpu=fiji -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=VI-SAFE,GCN,VI %s
5 ; RUN: llc -enable-no-nans-fp-math -enable-no-signed-zeros-fp-math -march=amdgcn -mcpu=fiji -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=VI-NONAN,GCN,VI %s
7 ; GCN-LABEL: {{^}}min_fneg_select_regression_0:
10 ; SI-SAFE: v_max_legacy_f32_e64 [[MIN:v[0-9]+]], -1.0, -v0
12 ; VI-SAFE: v_cmp_nle_f32_e32 vcc, 1.0, v0
13 ; VI-SAFE-NEXT: v_cndmask_b32_e32 v0, 1.0, v0, vcc
14 ; VI-SAFE-NEXT: v_xor_b32_e32 v0, 0x80000000, v0
16 ; GCN-NONAN: v_max_f32_e64 v0, -v0, -1.0
17 define amdgpu_ps float @min_fneg_select_regression_0(float %a, float %b) #0 {
18 %fneg.a = fsub float -0.0, %a
19 %cmp.a = fcmp ult float %a, 1.0
20 %min.a = select i1 %cmp.a, float %fneg.a, float -1.0
24 ; GCN-LABEL: {{^}}min_fneg_select_regression_posk_0:
27 ; SI-SAFE: v_max_legacy_f32_e64 [[MIN:v[0-9]+]], 1.0, -v0
29 ; VI-SAFE: v_cmp_nle_f32_e32 vcc, -1.0, v0
30 ; VI-SAFE-NEXT: v_cndmask_b32_e32 v0, -1.0, v0, vcc
31 ; VI-SAFE-NEXT: v_xor_b32_e32 v0, 0x80000000, v0
33 ; GCN-NONAN: v_max_f32_e64 v{{[0-9]+}}, -v0, 1.0
34 define amdgpu_ps float @min_fneg_select_regression_posk_0(float %a, float %b) #0 {
35 %fneg.a = fsub float -0.0, %a
36 %cmp.a = fcmp ult float %a, -1.0
37 %min.a = select i1 %cmp.a, float %fneg.a, float 1.0
41 ; GCN-LABEL: {{^}}max_fneg_select_regression_0:
44 ; SI-SAFE: v_min_legacy_f32_e64 [[MIN:v[0-9]+]], -1.0, -v0
46 ; VI-SAFE: v_cmp_nge_f32_e32 vcc, 1.0, v0
47 ; VI-SAFE-NEXT: v_cndmask_b32_e32 v0, 1.0, v0, vcc
48 ; VI-SAFE-NEXT: v_xor_b32_e32 v0, 0x80000000, v0
50 ; GCN-NONAN: v_min_f32_e64 [[MIN:v[0-9]+]], -v0, -1.0
51 define amdgpu_ps float @max_fneg_select_regression_0(float %a) #0 {
52 %fneg.a = fsub float -0.0, %a
53 %cmp.a = fcmp ugt float %a, 1.0
54 %min.a = select i1 %cmp.a, float %fneg.a, float -1.0
58 ; GCN-LABEL: {{^}}max_fneg_select_regression_posk_0:
61 ; SI-SAFE: v_min_legacy_f32_e64 [[MIN:v[0-9]+]], 1.0, -v0
63 ; VI-SAFE: v_cmp_nge_f32_e32 vcc, -1.0, v0
64 ; VI-SAFE-NEXT: v_cndmask_b32_e32 v0, -1.0, v0, vcc
65 ; VI-SAFE-NEXT: v_xor_b32_e32 v0, 0x80000000, v0
67 ; GCN-NONAN: v_min_f32_e64 [[MIN:v[0-9]+]], -v0, 1.0
68 define amdgpu_ps float @max_fneg_select_regression_posk_0(float %a) #0 {
69 %fneg.a = fsub float -0.0, %a
70 %cmp.a = fcmp ugt float %a, -1.0
71 %min.a = select i1 %cmp.a, float %fneg.a, float 1.0
75 attributes #0 = { nounwind }
76 attributes #1 = { nounwind readnone }