llvm-project/clang/test/CodeGenCXX/condition.cpp

111 lines
2.1 KiB
C++
Raw Normal View History

// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -o - %s | FileCheck %s
void *f();
template <typename T> T* g() {
if (T* t = f())
return t;
return 0;
}
void h() {
void *a = g<void>();
}
struct X {
X();
~X();
operator bool();
};
struct Y {
Y();
~Y();
};
void if_destruct(int z) {
// Verify that the condition variable is destroyed at the end of the
// "if" statement.
// CHECK: call void @_ZN1XC1Ev
// CHECK: call zeroext i1 @_ZN1XcvbEv
if (X x = X()) {
// CHECK: store i32 18
z = 18;
}
// CHECK: call void @_ZN1XD1Ev
// CHECK: store i32 17
z = 17;
// CHECK: call void @_ZN1XC1Ev
if (X x = X())
Y y;
// CHECK: br
// CHECK: call void @_ZN1YC1Ev
// CHECK: call void @_ZN1YD1Ev
// CHECK: br
// CHECK: call void @_ZN1XD1Ev
}
struct ConvertibleToInt {
ConvertibleToInt();
~ConvertibleToInt();
operator int();
};
void switch_destruct(int z) {
// CHECK: call void @_ZN16ConvertibleToIntC1Ev
switch (ConvertibleToInt conv = ConvertibleToInt()) {
case 0:
break;
default:
// CHECK: {{sw.default:|:3}}
// CHECK: store i32 19
z = 19;
break;
}
// CHECK: {{sw.epilog:|:4}}
// CHECK: call void @_ZN16ConvertibleToIntD1Ev
// CHECK: store i32 20
z = 20;
}
int foo();
void while_destruct(int z) {
// CHECK: define void @_Z14while_destructi
// CHECK: {{while.cond:|:1}}
while (X x = X()) {
// CHECK: call void @_ZN1XC1Ev
// CHECK: {{while.body:|:3}}
// CHECK: store i32 21
z = 21;
// CHECK: {{while.cleanup:|:4}}
// CHECK: call void @_ZN1XD1Ev
}
// CHECK: {{while.end|:6}}
// CHECK: store i32 22
z = 22;
}
void for_destruct(int z) {
// CHECK: define void @_Z12for_destruct
// CHECK: call void @_ZN1YC1Ev
for(Y y = Y(); X x = X(); ++z)
// CHECK: {{for.cond:|:1}}
// CHECK: call void @_ZN1XC1Ev
// CHECK: {{for.body:|:3}}
// CHECK: store i32 23
z = 23;
// CHECK: {{for.inc:|:4}}
// CHECK: br label %{{for.cond.cleanup|7}}
// CHECK: {{for.cond.cleanup:|:7}}
// CHECK: call void @_ZN1XD1Ev
// CHECK: {{for.end:|:9}}
// CHECK: call void @_ZN1YD1Ev
// CHECK: store i32 24
z = 24;
}