llvm-project/clang/test/CodeGenOpenCL/null_queue.cl

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// RUN: %clang_cc1 -no-opaque-pointers -O0 -cl-std=CL2.0 -emit-llvm %s -o - | FileCheck %s
extern queue_t get_default_queue(void);
bool compare(void) {
return 0 == get_default_queue() &&
get_default_queue() == 0;
// CHECK: icmp eq %opencl.queue_t* null, %{{.*}}
// CHECK: icmp eq %opencl.queue_t* %{{.*}}, null
}
void func(queue_t q);
void init(void) {
queue_t q = 0;
func(0);
// CHECK: store %opencl.queue_t* null, %opencl.queue_t** %q
// CHECK: call void @func(%opencl.queue_t* null)
}