llvm/test/FrontendC/2010-01-13-MemBarrier.c
Evan Cheng e8f422b9f3 Test for r93409.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93410 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-14 02:24:50 +00:00

12 lines
350 B
C

// RUN: %llvmgcc %s -S -emit-llvm -o - | FileCheck %s
// XFAIL: sparc,powerpc
// rdar://7536390
unsigned t(unsigned *ptr, unsigned val) {
// CHECK: @t
// CHECK: call void @llvm.memory.barrier
// CHECK-NEXT: call i32 @llvm.atomic.swap.i32
// CHECK-NEXT: call void @llvm.memory.barrier
return __sync_lock_test_and_set(ptr, val);
}