xref: /minix3/external/bsd/llvm/dist/clang/test/CodeGen/2010-01-13-MemBarrier.c (revision 0b98e8aad89f2bd4ba80b523d73cf29e9dd82ce1)
1 // RUN: %clang_cc1 %s -emit-llvm -o - | FileCheck %s
2 // XFAIL: sparc
3 // rdar://7536390
4 
5 typedef unsigned __INT32_TYPE__ uint32_t;
6 
7 unsigned t(uint32_t *ptr, uint32_t val) {
8   // CHECK:      @t
9   // CHECK: atomicrmw xchg i32* {{.*}} seq_cst
10   return __sync_lock_test_and_set(ptr, val);
11 }
12