| // RUN: %clang_cc1 -triple x86_64-linux-gnu -gkey-instructions -x c++ -std=c++17 %s -debug-info-kind=line-tables-only -emit-llvm -o - \ |
| // RUN: | FileCheck %s --implicit-check-not atomGroup --implicit-check-not atomRank |
| |
| // RUN: %clang_cc1 -triple x86_64-linux-gnu -gkey-instructions -x c %s -debug-info-kind=line-tables-only -emit-llvm -o - \ |
| // RUN: | FileCheck %s --implicit-check-not atomGroup --implicit-check-not atomRank |
| |
| // Perennial question: should the `dec` be in its own source atom or not |
| // (currently it is). |
| |
| // We've made the cmp and br separate source atoms for now, to match existing |
| // behaviour in this case: |
| // 1. while ( |
| // 2. int i = --End |
| // 3. ) { |
| // 4. useValue(i); |
| // 5. } |
| // Without Key Instructions we go: 2, 1[, 4, 2, 1]+ |
| // Without separating cmp and br with Key Instructions we'd get: |
| // 1[, 4, 1]+. If we made the cmp higher precedence than the |
| // br and had them in the same group, we could get: |
| // 2, [4, 2]+ which might be nicer. FIXME: do that later. |
| |
| void a(int A) { |
| // CHECK: %dec = add nsw i32 %0, -1, !dbg [[G1R2:!.*]] |
| // CHECK: store i32 %dec, ptr %A.addr{{.*}}, !dbg [[G1R1:!.*]] |
| // CHECK: %tobool = icmp ne i32 %dec, 0, !dbg [[G2R1:!.*]] |
| // CHECK: br i1 %tobool, label %while.body, label %while.end, !dbg [[G3R1:!.*]] |
| while (--A) { }; |
| |
| // CHECK: ret{{.*}}, !dbg [[RET:!.*]] |
| } |
| |
| // CHECK: [[G1R2]] = !DILocation({{.*}}, atomGroup: 1, atomRank: 2) |
| // CHECK: [[G1R1]] = !DILocation({{.*}}, atomGroup: 1, atomRank: 1) |
| // CHECK: [[G2R1]] = !DILocation({{.*}}, atomGroup: 2, atomRank: 1) |
| // CHECK: [[G3R1]] = !DILocation({{.*}}, atomGroup: 3, atomRank: 1) |
| // CHECK: [[RET]] = !DILocation({{.*}}, atomGroup: 4, atomRank: 1) |
