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clang-p2996/clang/test/CodeGenCXX/debug-info-nodebug.cpp
Paul Robinson b17327d7b6 PR21823: 'nodebug' attribute on global/static variables.
Make 'nodebug' on a global/static variable suppress all debug info
for the variable. Previously it would only suppress info for the
associated initializer function, if any.

Differential Revision: http://reviews.llvm.org/D19567

llvm-svn: 267746
2016-04-27 17:37:12 +00:00

56 lines
2.0 KiB
C++

// RUN: %clang_cc1 -DSETNODEBUG=0 -emit-llvm -debug-info-kind=limited %s -o - | FileCheck %s --check-prefix=YESINFO
// RUN: %clang_cc1 -DSETNODEBUG=1 -emit-llvm -debug-info-kind=limited %s -o - | FileCheck %s --check-prefix=NOINFO
#if SETNODEBUG
#define NODEBUG __attribute__((nodebug))
#else
#define NODEBUG
#endif
// Simple global variable declaration and definition.
// Use the declaration so it gets emitted.
NODEBUG int global_int_decl;
NODEBUG int global_int_def = global_int_decl;
// YESINFO-DAG: !DIGlobalVariable(name: "global_int_decl"
// NOINFO-NOT: !DIGlobalVariable(name: "global_int_decl"
// YESINFO-DAG: !DIGlobalVariable(name: "global_int_def"
// NOINFO-NOT: !DIGlobalVariable(name: "global_int_def"
// Const global variable. Use it so it gets emitted.
NODEBUG static const int const_global_int_def = 1;
void func1(int);
void func2() { func1(const_global_int_def); }
// YESINFO-DAG: !DIGlobalVariable(name: "const_global_int_def"
// NOINFO-NOT: !DIGlobalVariable(name: "const_global_int_def"
// Global variable with a more involved type.
// If the variable has no debug info, the type should not appear either.
struct S1 {
int a;
int b;
};
NODEBUG S1 global_struct = { 2, 3 };
// YESINFO-DAG: !DICompositeType({{.*}} name: "S1"
// NOINFO-NOT: !DICompositeType({{.*}} name: "S1"
// YESINFO-DAG: !DIGlobalVariable(name: "global_struct"
// NOINFO-NOT: !DIGlobalVariable(name: "global_struct"
// Static data members. Const member needs a use.
struct S2 {
NODEBUG static int static_member;
NODEBUG static const int static_const_member = 4;
};
int S2::static_member = 5;
int junk = S2::static_const_member;
// YESINFO-DAG: !DIGlobalVariable(name: "static_member"
// NOINFO-NOT: !DIGlobalVariable(name: "static_member"
// YESINFO-DAG: !DIDerivedType({{.*}} name: "static_const_member"
// NOINFO-NOT: !DIDerivedType({{.*}} name: "static_const_member"
// Function-local static variable.
void func3() {
NODEBUG static int func_local = 6;
}
// YESINFO-DAG: !DIGlobalVariable(name: "func_local"
// NOINFO-NOT: !DIGlobalVariable(name: "func_local"