callback_pthread_create.c
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// RUN: %clang_cc1 -O1 %s -S -emit-llvm -o - | FileCheck %s
// RUN: %clang_cc1 -O1 %s -S -emit-llvm -o - | opt -ipconstprop -S | FileCheck --check-prefix=IPCP %s
// CHECK: declare !callback ![[cid:[0-9]+]] {{.*}}i32 @pthread_create
// CHECK: ![[cid]] = !{![[cidb:[0-9]+]]}
// CHECK: ![[cidb]] = !{i64 2, i64 3, i1 false}
// Taken from test/Analysis/retain-release.m
//{
struct _opaque_pthread_t {};
struct _opaque_pthread_attr_t {};
typedef struct _opaque_pthread_t *__darwin_pthread_t;
typedef struct _opaque_pthread_attr_t __darwin_pthread_attr_t;
typedef __darwin_pthread_t pthread_t;
typedef __darwin_pthread_attr_t pthread_attr_t;
int pthread_create(pthread_t *, const pthread_attr_t *,
void *(*)(void *), void *);
//}
const int GlobalVar = 0;
static void *callee0(void *payload) {
// IPCP: define internal i8* @callee0
// IPCP: ret i8* null
return payload;
}
static void *callee1(void *payload) {
// IPCP: define internal i8* @callee1
// IPCP: ret i8* bitcast (i32* @GlobalVar to i8*)
return payload;
}
void foo() {
pthread_t MyFirstThread;
pthread_create(&MyFirstThread, 0, callee0, 0);
pthread_t MySecondThread;
pthread_create(&MySecondThread, 0, callee1, (void *)&GlobalVar);
}