| Nicolai Haehnle | 279970c | 2016-04-12 16:10:38 +0000 | [diff] [blame] | 1 | ; RUN: opt -S -mtriple=amdgcn-- -structurizecfg -si-annotate-control-flow < %s | FileCheck %s |
| 2 | |
| 3 | ; CHECK-LABEL: {{^}}define amdgpu_vs void @main |
| 4 | ; CHECK: main_body: |
| 5 | ; CHECK: LOOP.outer: |
| 6 | ; CHECK: LOOP: |
| 7 | ; CHECK: [[if:%[0-9]+]] = call { i1, i64 } @llvm.amdgcn.if( |
| 8 | ; CHECK: [[if_exec:%[0-9]+]] = extractvalue { i1, i64 } [[if]], 1 |
| 9 | ; |
| 10 | ; CHECK: Flow: |
| 11 | ; |
| 12 | ; Ensure two else.break calls, for both the inner and outer loops |
| 13 | ; |
| 14 | ; CHECK: call i64 @llvm.amdgcn.else.break(i64 [[if_exec]], |
| 15 | ; CHECK-NEXT: call i64 @llvm.amdgcn.else.break(i64 [[if_exec]], |
| 16 | ; CHECK-NEXT: call void @llvm.amdgcn.end.cf |
| 17 | ; |
| 18 | ; CHECK: Flow1: |
| 19 | define amdgpu_vs void @main(<4 x float> %vec, i32 %ub, i32 %cont) { |
| 20 | main_body: |
| 21 | br label %LOOP.outer |
| 22 | |
| 23 | LOOP.outer: ; preds = %ENDIF, %main_body |
| 24 | %tmp43 = phi i32 [ 0, %main_body ], [ %tmp47, %ENDIF ] |
| 25 | br label %LOOP |
| 26 | |
| 27 | LOOP: ; preds = %ENDIF, %LOOP.outer |
| 28 | %tmp45 = phi i32 [ %tmp43, %LOOP.outer ], [ %tmp47, %ENDIF ] |
| 29 | %tmp47 = add i32 %tmp45, 1 |
| 30 | %tmp48 = icmp slt i32 %tmp45, %ub |
| 31 | br i1 %tmp48, label %ENDIF, label %IF |
| 32 | |
| 33 | IF: ; preds = %LOOP |
| 34 | ret void |
| 35 | |
| 36 | ENDIF: ; preds = %LOOP |
| 37 | %tmp51 = icmp eq i32 %tmp47, %cont |
| 38 | br i1 %tmp51, label %LOOP, label %LOOP.outer |
| 39 | } |
| 40 | |
| 41 | attributes #0 = { nounwind readnone } |