microsoft-new.cpp
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// RUN: %clang_cc1 -triple i686-pc-win32 -fms-compatibility %s -emit-llvm -o - | FileCheck %s
#include <stddef.h>
struct arbitrary_t {} arbitrary;
void *operator new(size_t size, arbitrary_t);
struct arbitrary2_t {} arbitrary2;
void *operator new[](size_t size, arbitrary2_t);
namespace PR13164 {
void f() {
// MSVC will fall back on the non-array operator new.
void *a;
int *p = new(arbitrary) int[4];
// CHECK: call i8* @"??2@YAPAXIUarbitrary_t@@@Z"(i32 16, %struct.arbitrary_t*
}
struct S {
void *operator new[](size_t size, arbitrary_t);
};
void g() {
S *s = new(arbitrary) S[2];
// CHECK: call i8* @"??_US@PR13164@@SAPAXIUarbitrary_t@@@Z"(i32 2, %struct.arbitrary_t*
S *s1 = new(arbitrary) S;
// CHECK: call i8* @"??2@YAPAXIUarbitrary_t@@@Z"(i32 1, %struct.arbitrary_t*
}
struct T {
void *operator new(size_t size, arbitrary2_t);
};
void h() {
// This should still call the global operator new[].
T *t = new(arbitrary2) T[2];
// CHECK: call i8* @"??_U@YAPAXIUarbitrary2_t@@@Z"(i32 2, %struct.arbitrary2_t*
}
}