You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
52 lines
1.3 KiB
52 lines
1.3 KiB
4 months ago
|
// RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm < %s | FileCheck %s
|
||
|
|
|
||
|
|
// CHECK: define void @foo(i32* nonnull %x)
|
||
|
|
void foo(int * __attribute__((nonnull)) x) {
|
||
|
|
*x = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
// CHECK: define void @bar(i32* nonnull %x)
|
||
|
|
void bar(int * x) __attribute__((nonnull(1))) {
|
||
|
|
*x = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
// CHECK: define void @bar2(i32* %x, i32* nonnull %y)
|
||
|
|
void bar2(int * x, int * y) __attribute__((nonnull(2))) {
|
||
|
|
*x = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int a;
|
||
|
|
// CHECK: define nonnull i32* @bar3()
|
||
|
|
int * bar3() __attribute__((returns_nonnull)) {
|
||
|
|
return &a;
|
||
|
|
}
|
||
|
|
|
||
|
|
// CHECK: define i32 @bar4(i32 %n, i32* nonnull %p)
|
||
|
|
int bar4(int n, int *p) __attribute__((nonnull)) {
|
||
|
|
return n + *p;
|
||
|
|
}
|
||
|
|
|
||
|
|
// CHECK: define i32 @bar5(i32 %n, i32* nonnull %p)
|
||
|
|
int bar5(int n, int *p) __attribute__((nonnull(1, 2))) {
|
||
|
|
return n + *p;
|
||
|
|
}
|
||
|
|
|
||
|
|
typedef union {
|
||
|
|
unsigned long long n;
|
||
|
|
int *p;
|
||
|
|
double d;
|
||
|
|
} TransparentUnion __attribute__((transparent_union));
|
||
|
|
|
||
|
|
// CHECK: define i32 @bar6(i64 %
|
||
|
|
int bar6(TransparentUnion tu) __attribute__((nonnull(1))) {
|
||
|
|
return *tu.p;
|
||
|
|
}
|
||
|
|
|
||
|
|
// CHECK: define void @bar7(i32* nonnull %a, i32* nonnull %b)
|
||
|
|
void bar7(int *a, int *b) __attribute__((nonnull(1)))
|
||
|
|
__attribute__((nonnull(2))) {}
|
||
|
|
|
||
|
|
// CHECK: define void @bar8(i32* nonnull %a, i32* nonnull %b)
|
||
|
|
void bar8(int *a, int *b) __attribute__((nonnull))
|
||
|
|
__attribute__((nonnull(1))) {}
|