652795db16
can be used to improve the locations when generating remarks for loops. Depends on the companion LLVM change r286227. Patch by Florian Hahn. Differential Revision: https://reviews.llvm.org/D25764 llvm-svn: 286456
72 lines
2.4 KiB
C++
72 lines
2.4 KiB
C++
// RUN: %clang_cc1 -debug-info-kind=limited -std=c++11 -S -emit-llvm %s -o - | FileCheck %s
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// PR19864
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extern int v[2];
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int a = 0, b = 0;
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int main() {
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#line 100
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for (int x : v)
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if (x)
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++b; // CHECK: add nsw{{.*}}, 1
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else
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++a; // CHECK: add nsw{{.*}}, 1
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// The continuation block if the if statement should not share the
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// location of the ++a statement. The branch back to the start of the loop
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// should be attributed to the loop header line.
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// CHECK: br label
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// CHECK: br label
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// CHECK: br label {{.*}}, !dbg [[DBG1:![0-9]*]], !llvm.loop [[L1:![0-9]*]]
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#line 200
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while (a)
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if (b)
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++b; // CHECK: add nsw{{.*}}, 1
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else
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++a; // CHECK: add nsw{{.*}}, 1
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// CHECK: br label
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// CHECK: br label {{.*}}, !dbg [[DBG2:![0-9]*]], !llvm.loop [[L2:![0-9]*]]
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#line 300
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for (; a; )
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if (b)
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++b; // CHECK: add nsw{{.*}}, 1
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else
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++a; // CHECK: add nsw{{.*}}, 1
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// CHECK: br label
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// CHECK: br label {{.*}}, !dbg [[DBG3:![0-9]*]], !llvm.loop [[L3:![0-9]*]]
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#line 400
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int x[] = {1, 2};
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for (int y : x)
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if (b)
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++b; // CHECK: add nsw{{.*}}, 1
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else
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++a; // CHECK: add nsw{{.*}}, 1
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// CHECK: br label
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// CHECK: br label {{.*}}, !dbg [[DBG4:![0-9]*]], !llvm.loop [[L4:![0-9]*]]
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// CHECK-DAG: [[DBG1]] = !DILocation(line: 100, scope: !{{.*}})
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// CHECK-DAG: [[DBG2]] = !DILocation(line: 200, scope: !{{.*}})
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// CHECK-DAG: [[DBG3]] = !DILocation(line: 300, scope: !{{.*}})
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// CHECK-DAG: [[DBG4]] = !DILocation(line: 401, scope: !{{.*}})
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// CHECK-DAG: [[L1]] = distinct !{[[L1]], [[SLDBG1:![0-9]*]], [[ELDBG1:![0-9]*]]}
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// CHECK-DAG: [[SLDBG1]] = !DILocation(line: 100, scope: !{{.*}})
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// CHECK-DAG: [[ELDBG1]] = !DILocation(line: 104, scope: !{{.*}})
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// CHECK-DAG: [[L2]] = distinct !{[[L2]], [[SLDBG2:![0-9]*]], [[ELDBG2:![0-9]*]]}
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// CHECK-DAG: [[SLDBG2]] = !DILocation(line: 200, scope: !{{.*}})
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// CHECK-DAG: [[ELDBG2]] = !DILocation(line: 204, scope: !{{.*}})
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// CHECK-DAG: [[L3]] = distinct !{[[L3]], [[SLDBG3:![0-9]*]], [[ELDBG3:![0-9]*]]}
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// CHECK-DAG: [[SLDBG3]] = !DILocation(line: 300, scope: !{{.*}})
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// CHECK-DAG: [[ELDBG3]] = !DILocation(line: 304, scope: !{{.*}})
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// CHECK-DAG: [[L4]] = distinct !{[[L4]], [[SLDBG4:![0-9]*]], [[ELDBG4:![0-9]*]]}
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// CHECK-DAG: [[SLDBG4]] = !DILocation(line: 401, scope: !{{.*}})
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// CHECK-DAG: [[ELDBG4]] = !DILocation(line: 405, scope: !{{.*}})
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}
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