llvm-project/clang/test/CodeGenCXX/debug-info-scope.cpp
Douglas Katzman 3459ce2e5e Stop messing with the 'g' group of options in CompilerInvocation.
With this change, most 'g' options are rejected by CompilerInvocation.
They remain only as Driver options. The new way to request debug info
from cc1 is with "-debug-info-kind={line-tables-only|limited|standalone}"
and "-dwarf-version={2|3|4}". In the absence of a command-line option
to specify Dwarf version, the Toolchain decides it, rather than placing
Toolchain-specific logic in CompilerInvocation.

Also fix a bug in the Windows compatibility argument parsing
in which the "rightmost argument wins" principle failed.

Differential Revision: http://reviews.llvm.org/D13221

llvm-svn: 249655
2015-10-08 04:24:12 +00:00

73 lines
2.9 KiB
C++

// RUN: %clang_cc1 -debug-info-kind=limited -std=c++11 -emit-llvm %s -o -| FileCheck %s
//
// Two variables with the same name in subsequent if staments need to be in separate scopes.
//
// rdar://problem/14024005
int src();
void f();
void func() {
// CHECK: = !DILocalVariable(name: "i"
// CHECK-SAME: scope: [[IF1:![0-9]*]]
// CHECK-SAME: line: [[@LINE+2]]
// CHECK: [[IF1]] = distinct !DILexicalBlock({{.*}}line: [[@LINE+1]])
if (int i = src())
f();
// CHECK: = !DILocalVariable(name: "i"
// CHECK-SAME: scope: [[IF2:![0-9]*]]
// CHECK-SAME: line: [[@LINE+2]]
// CHECK: [[IF2]] = distinct !DILexicalBlock({{.*}}line: [[@LINE+1]])
if (int i = src()) {
f();
} else
f();
// CHECK: = !DILocalVariable(name: "i"
// CHECK-SAME: scope: [[FOR:![0-9]*]]
// CHECK-SAME: line: [[@LINE+2]]
// CHECK: [[FOR]] = distinct !DILexicalBlock({{.*}}line: [[@LINE+1]])
for (int i = 0;
// CHECK: = !DILocalVariable(name: "b"
// CHECK-SAME: scope: [[FOR_BODY:![0-9]*]]
// CHECK-SAME: line: [[@LINE+6]]
// CHECK: [[FOR_BODY]] = distinct !DILexicalBlock({{.*}}line: [[@LINE-4]])
// The scope could be located at 'bool b', but LLVM drops line information for
// scopes anyway, so it's not terribly important.
// FIXME: change the debug info schema to not include locations of scopes,
// since they're not used.
bool b = i != 10; ++i)
f();
// CHECK: = !DILocalVariable(name: "i"
// CHECK-SAME: scope: [[FOR:![0-9]*]]
// CHECK-SAME: line: [[@LINE+2]]
// CHECK: [[FOR]] = distinct !DILexicalBlock({{.*}}line: [[@LINE+1]])
for (int i = 0; i != 10; ++i) {
// FIXME: Do not include scopes that have only other scopes (and no variables
// or using declarations) as direct children, they just waste
// space/relocations/etc.
// CHECK: [[FOR_LOOP_INCLUDING_COND:!.*]] = distinct !DILexicalBlock(scope: [[FOR]],{{.*}} line: [[@LINE-4]])
// CHECK: = !DILocalVariable(name: "b"
// CHECK-SAME: scope: [[FOR_COMPOUND:![0-9]*]]
// CHECK-SAME: line: [[@LINE+2]]
// CHECK: [[FOR_COMPOUND]] = distinct !DILexicalBlock(scope: [[FOR_LOOP_INCLUDING_COND]],{{.*}} line: [[@LINE-8]])
bool b = i % 2;
}
int x[] = {1, 2};
// CHECK: = !DILocalVariable(name: "__range"
// CHECK-SAME: scope: [[RANGE_FOR:![0-9]*]]
// CHECK-NOT: line:
// CHECK-SAME: ){{$}}
// CHECK: [[RANGE_FOR]] = distinct !DILexicalBlock({{.*}}, line: [[@LINE+1]])
for (int i : x) {
// CHECK: = !DILocalVariable(name: "i"
// CHECK-SAME: scope: [[RANGE_FOR_BODY:![0-9]*]]
// CHECK-SAME: line: [[@LINE-3]]
// CHECK: [[RANGE_FOR_BODY]] = distinct !DILexicalBlock(scope: [[RANGE_FOR]],{{.*}} line: [[@LINE-4]])
}
}