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Test for r93409.

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llvm-svn: 93410
This commit is contained in:
Evan Cheng 2010-01-14 02:24:50 +00:00
parent e5f811e0a6
commit 71b4e96580
1 changed files with 11 additions and 0 deletions
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test/FrontendC/2010-01-13-MemBarrier.c Normal file
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// 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);
}