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| 1 | +// RUN: %clang -gkey-instructions -x c++ -std=c++17 %s -gmlt -S -emit-llvm -o - \ |
| 2 | +// RUN: | FileCheck %s --implicit-check-not atomGroup --implicit-check-not atomRank --check-prefixes=CHECK,CHECK-CXX |
| 3 | + |
| 4 | +// RUN: %clang -gkey-instructions -x c %s -gmlt -S -emit-llvm -o - \ |
| 5 | +// RUN: | FileCheck %s --implicit-check-not atomGroup --implicit-check-not atomRank |
| 6 | + |
| 7 | +int g; |
| 8 | +void a(int A, int B) { |
| 9 | +// CHECK: entry: |
| 10 | +// The load gets associated with the branch rather than the store. |
| 11 | +// FIXME: Is that the best thing to do? |
| 12 | +// CHECK: %0 = load i32, ptr %A.addr{{.*}}, !dbg [[G2R2:!.*]] |
| 13 | +// CHECK: store i32 %0, ptr @g{{.*}}, !dbg [[G1R1:!.*]] |
| 14 | +// CHECK: switch i32 %0, label %{{.*}} [ |
| 15 | +// CHECK: i32 0, label %sw.bb |
| 16 | +// CHECK: i32 1, label %sw.bb1 |
| 17 | +// CHECK: ], !dbg [[G2R1:!.*]] |
| 18 | + switch ((g = A)) { |
| 19 | + case 0: break; |
| 20 | + case 1: { |
| 21 | +// CHECK: sw.bb1: |
| 22 | +// CHECK: %1 = load i32, ptr %B.addr{{.*}}, !dbg [[G3R2:!.*]] |
| 23 | +// CHECK: switch i32 %1, label %{{.*}} [ |
| 24 | +// CHECK: i32 0, label %sw.bb2 |
| 25 | +// CHECK: ], !dbg [[G3R1:!.*]] |
| 26 | + switch ((B)) { |
| 27 | + case 0: { |
| 28 | +// Test that assignments in constant-folded switches don't go missing. |
| 29 | +// CHECK-CXX: sw.bb2: |
| 30 | +// CHECK-CXX: store i32 1, ptr %C{{.*}}, !dbg [[G4R1:!.*]] |
| 31 | +#ifdef __cplusplus |
| 32 | + switch (const int C = 1; C) { |
| 33 | + case 0: break; |
| 34 | + case 1: break; |
| 35 | + default: break; |
| 36 | + } |
| 37 | +#endif |
| 38 | + } break; |
| 39 | + default: break; |
| 40 | + } |
| 41 | + } break; |
| 42 | + default: break; |
| 43 | + } |
| 44 | +} |
| 45 | + |
| 46 | +// CHECK: [[G2R2]] = !DILocation({{.*}}, atomGroup: 2, atomRank: 2) |
| 47 | +// CHECK: [[G1R1]] = !DILocation({{.*}}, atomGroup: 1, atomRank: 1) |
| 48 | +// CHECK: [[G2R1]] = !DILocation({{.*}}, atomGroup: 2, atomRank: 1) |
| 49 | +// CHECK: [[G3R2]] = !DILocation({{.*}}, atomGroup: 3, atomRank: 2) |
| 50 | +// CHECK: [[G3R1]] = !DILocation({{.*}}, atomGroup: 3, atomRank: 1) |
| 51 | +// CHECK-CXX: [[G4R1]] = !DILocation({{.*}}, atomGroup: 4, atomRank: 1) |
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