Marek Olsak | 2d82590 | 2017-04-28 20:21:58 +0000 | [diff] [blame] | 1 | ;RUN: llc < %s -march=amdgcn -mcpu=gfx900 -verify-machineinstrs | FileCheck %s --check-prefix=GCN |
| 2 | |
| 3 | ; GCN-LABEL: {{^}}full_mask: |
| 4 | ; GCN: s_mov_b64 exec, -1 |
| 5 | ; GCN: v_add_f32_e32 v0, |
| 6 | define amdgpu_ps float @full_mask(float %a, float %b) { |
| 7 | main_body: |
| 8 | %s = fadd float %a, %b |
| 9 | call void @llvm.amdgcn.init.exec(i64 -1) |
| 10 | ret float %s |
| 11 | } |
| 12 | |
| 13 | ; GCN-LABEL: {{^}}partial_mask: |
| 14 | ; GCN: s_mov_b64 exec, 0x1e240 |
| 15 | ; GCN: v_add_f32_e32 v0, |
| 16 | define amdgpu_ps float @partial_mask(float %a, float %b) { |
| 17 | main_body: |
| 18 | %s = fadd float %a, %b |
| 19 | call void @llvm.amdgcn.init.exec(i64 123456) |
| 20 | ret float %s |
| 21 | } |
| 22 | |
| 23 | ; GCN-LABEL: {{^}}input_s3off8: |
| 24 | ; GCN: s_bfe_u32 s0, s3, 0x70008 |
| 25 | ; GCN: s_bfm_b64 exec, s0, 0 |
| 26 | ; GCN: s_cmp_eq_u32 s0, 64 |
| 27 | ; GCN: s_cmov_b64 exec, -1 |
| 28 | ; GCN: v_add_f32_e32 v0, |
| 29 | define amdgpu_ps float @input_s3off8(i32 inreg, i32 inreg, i32 inreg, i32 inreg %count, float %a, float %b) { |
| 30 | main_body: |
| 31 | %s = fadd float %a, %b |
| 32 | call void @llvm.amdgcn.init.exec.from.input(i32 %count, i32 8) |
| 33 | ret float %s |
| 34 | } |
| 35 | |
| 36 | ; GCN-LABEL: {{^}}input_s0off19: |
| 37 | ; GCN: s_bfe_u32 s0, s0, 0x70013 |
| 38 | ; GCN: s_bfm_b64 exec, s0, 0 |
| 39 | ; GCN: s_cmp_eq_u32 s0, 64 |
| 40 | ; GCN: s_cmov_b64 exec, -1 |
| 41 | ; GCN: v_add_f32_e32 v0, |
| 42 | define amdgpu_ps float @input_s0off19(i32 inreg %count, float %a, float %b) { |
| 43 | main_body: |
| 44 | %s = fadd float %a, %b |
| 45 | call void @llvm.amdgcn.init.exec.from.input(i32 %count, i32 19) |
| 46 | ret float %s |
| 47 | } |
| 48 | |
| 49 | ; GCN-LABEL: {{^}}reuse_input: |
| 50 | ; GCN: s_bfe_u32 s1, s0, 0x70013 |
| 51 | ; GCN: s_bfm_b64 exec, s1, 0 |
| 52 | ; GCN: s_cmp_eq_u32 s1, 64 |
| 53 | ; GCN: s_cmov_b64 exec, -1 |
| 54 | ; GCN: v_add_i32_e32 v0, vcc, s0, v0 |
| 55 | define amdgpu_ps float @reuse_input(i32 inreg %count, i32 %a) { |
| 56 | main_body: |
| 57 | call void @llvm.amdgcn.init.exec.from.input(i32 %count, i32 19) |
| 58 | %s = add i32 %a, %count |
| 59 | %f = sitofp i32 %s to float |
| 60 | ret float %f |
| 61 | } |
| 62 | |
| 63 | ; GCN-LABEL: {{^}}reuse_input2: |
| 64 | ; GCN: s_bfe_u32 s1, s0, 0x70013 |
| 65 | ; GCN: s_bfm_b64 exec, s1, 0 |
| 66 | ; GCN: s_cmp_eq_u32 s1, 64 |
| 67 | ; GCN: s_cmov_b64 exec, -1 |
| 68 | ; GCN: v_add_i32_e32 v0, vcc, s0, v0 |
| 69 | define amdgpu_ps float @reuse_input2(i32 inreg %count, i32 %a) { |
| 70 | main_body: |
| 71 | %s = add i32 %a, %count |
| 72 | %f = sitofp i32 %s to float |
| 73 | call void @llvm.amdgcn.init.exec.from.input(i32 %count, i32 19) |
| 74 | ret float %f |
| 75 | } |
| 76 | |
| 77 | declare void @llvm.amdgcn.init.exec(i64) #1 |
| 78 | declare void @llvm.amdgcn.init.exec.from.input(i32, i32) #1 |
| 79 | |
| 80 | attributes #1 = { convergent } |