debug-info-loops.cpp
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// RUN: %clang -g -gcolumn-info -std=c++11 -S -emit-llvm %s -o - | FileCheck %s
extern int v[2];
int a = 0, b = 0;
int main() {
#line 100
for (int x : v) {
if (x)
++b;
else
++a;
}
// CHECK: br label {{.*}}, !dbg [[DBG1:![0-9]*]], !llvm.loop [[L1:![0-9]*]]
#line 200
while (a)
if (b)
++b;
else
++a;
// CHECK: br label {{.*}}, !dbg [[DBG2:![0-9]*]], !llvm.loop [[L2:![0-9]*]]
#line 300
for (unsigned i = 0; i < 100; i++) {
a++;
for (int y : v)
++b;
}
// CHECK: br label {{.*}}, !dbg [[DBG3:![0-9]*]], !llvm.loop [[L3:![0-9]*]]
// CHECK: br label {{.*}}, !dbg [[DBG3:![0-9]*]], !llvm.loop [[L4:![0-9]*]]
// CHECK-DAG: [[L1]] = distinct !{[[L1]], [[SLDBG1:![0-9]*]], [[ELDBG1:![0-9]*]]}
// CHECK-DAG: [[SLDBG1]] = !DILocation(line: 100, column: 3, scope: !{{.*}})
// CHECK-DAG: [[ELDBG1]] = !DILocation(line: 105, column: 3, scope: !{{.*}})
// CHECK-DAG: [[L2]] = distinct !{[[L2]], [[SLDBG2:![0-9]*]], [[ELDBG2:![0-9]*]]}
// CHECK-DAG: [[SLDBG2]] = !DILocation(line: 200, column: 3, scope: !{{.*}})
// CHECK-DAG: [[ELDBG2]] = !DILocation(line: 204, column: 9, scope: !{{.*}})
// CHECK-DAG: [[L3]] = distinct !{[[L3]], [[SLDBG3:![0-9]*]], [[ELDBG3:![0-9]*]]}
// CHECK-DAG: [[SLDBG3]] = !DILocation(line: 302, column: 5, scope: !{{.*}})
// CHECK-DAG: [[ELDBG3]] = !DILocation(line: 303, column: 9, scope: !{{.*}})
//
// CHECK-DAG: [[L4]] = distinct !{[[L4]], [[SLDBG4:![0-9]*]], [[ELDBG4:![0-9]*]]}
// CHECK-DAG: [[SLDBG4]] = !DILocation(line: 300, column: 3, scope: !{{.*}})
// CHECK-DAG: [[ELDBG4]] = !DILocation(line: 304, column: 3, scope: !{{.*}})
}