| ; RUN: llc < %s -march=amdgcn -mcpu=verde -verify-machineinstrs | FileCheck --check-prefix=SI --check-prefix=FUNC %s |
| ; RUN: llc < %s -march=amdgcn -mcpu=tonga -verify-machineinstrs | FileCheck --check-prefix=SI --check-prefix=FUNC %s |
| |
| ; FUNC-LABEL: {{^}}break_inserted_outside_of_loop: |
| |
| ; SI: [[LOOP_LABEL:[A-Z0-9]+]]: |
| ; Lowered break instructin: |
| ; SI: s_or_b64 |
| ; Lowered Loop instruction: |
| ; SI: s_andn2_b64 |
| ; s_cbranch_execnz [[LOOP_LABEL]] |
| ; SI: s_endpgm |
| define void @break_inserted_outside_of_loop(i32 addrspace(1)* %out, i32 %a, i32 %b) { |
| main_body: |
| %0 = and i32 %a, %b |
| %1 = trunc i32 %0 to i1 |
| br label %ENDIF |
| |
| ENDLOOP: |
| store i32 0, i32 addrspace(1)* %out |
| ret void |
| |
| ENDIF: |
| br i1 %1, label %ENDLOOP, label %ENDIF |
| } |
| |
| |
| ; FUNC-LABEL: {{^}}phi_cond_outside_loop: |
| ; FIXME: This could be folded into the s_or_b64 instruction |
| ; SI: s_mov_b64 [[ZERO:s\[[0-9]+:[0-9]+\]]], 0 |
| ; SI: [[LOOP_LABEL:[A-Z0-9]+]] |
| ; SI: v_cmp_ne_i32_e32 vcc, 0, v{{[0-9]+}} |
| |
| ; SI_IF_BREAK instruction: |
| ; SI: s_or_b64 [[BREAK:s\[[0-9]+:[0-9]+\]]], vcc, [[ZERO]] |
| |
| ; SI_LOOP instruction: |
| ; SI: s_andn2_b64 exec, exec, [[BREAK]] |
| ; SI: s_cbranch_execnz [[LOOP_LABEL]] |
| ; SI: s_endpgm |
| |
| define void @phi_cond_outside_loop(i32 %a, i32 %b) { |
| entry: |
| %0 = icmp eq i32 %a , 0 |
| br i1 %0, label %if, label %else |
| |
| if: |
| br label %endif |
| |
| else: |
| %1 = icmp eq i32 %b, 0 |
| br label %endif |
| |
| endif: |
| %2 = phi i1 [0, %if], [%1, %else] |
| br label %loop |
| |
| loop: |
| br i1 %2, label %exit, label %loop |
| |
| exit: |
| ret void |
| } |