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