llvm-project/clang/test/CodeGenCXX/member-init-anon-union.cpp
Rafael Espindola e5df59ff78 Emit DeferredDeclsToEmit in a DFS order.
Currently we emit DeferredDeclsToEmit in reverse order. This patch changes that.

The advantages of the change are that

* The output order is a bit closer to the source order. The change to
test/CodeGenCXX/pod-member-memcpys.cpp is a good example.

* If we decide to deffer more, it will not cause as large changes in the
estcases as it would without this patch.

llvm-svn: 226751
2015-01-22 00:24:57 +00:00

66 lines
1.1 KiB
C++

// RUN: %clang_cc1 %s -std=c++11 -triple x86_64-linux-gnu -emit-llvm -o - | FileCheck %s
// PR10531.
int make_a();
static union {
int a = make_a();
char *b;
};
int f() { return a; }
// CHECK-LABEL: define internal void @__cxx_global_var_init
// CHECK-NOT: }
// CHECK: call {{.*}}@"[[CONSTRUCT_GLOBAL:.*]]C1Ev"
int g() {
union {
int a;
int b = 81;
};
// CHECK-LABEL: define {{.*}}_Z1gv
// CHECK-NOT: }
// CHECK: call {{.*}}@"[[CONSTRUCT_LOCAL:.*]]C1Ev"
return b;
}
struct A {
A();
};
union B {
int k;
struct {
A x;
int y = 123;
};
B() {}
B(int n) : k(n) {}
};
B b1;
B b2(0);
// CHECK: define {{.*}}@"[[CONSTRUCT_GLOBAL]]C2Ev"
// CHECK-NOT: }
// CHECK: call {{.*}}@_Z6make_a
// CHECK: define {{.*}}@"[[CONSTRUCT_LOCAL]]C2Ev"
// CHECK-NOT: }
// CHECK: store i32 81
// CHECK-LABEL: define {{.*}} @_ZN1BC2Ev(
// CHECK: call void @_ZN1AC1Ev(
// CHECK: store i32 123,
// CHECK: }
// CHECK-LABEL: define {{.*}} @_ZN1BC2Ei(
// CHECK-NOT: call void @_ZN1AC1Ev(
// CHECK-NOT: store i32 123,
// CHECK: store i32 %
// CHECK-NOT: call void @_ZN1AC1Ev(
// CHECK-NOT: store i32 123,
// CHECK: }