e9f8113ec4
There are still a few issues which need to be resolved with code generation for atomic load and store, so I'm not converting the places which need those for now. I'm not entirely sure what to do about __builtin_llvm_memory_barrier: the fence instruction doesn't expose all the possibilities which can be expressed by __builtin_llvm_memory_barrier. I would appreciate hearing from anyone who is using this intrinsic. llvm-svn: 139216
41 lines
816 B
C
41 lines
816 B
C
// RUN: %clang_cc1 %s -emit-llvm -o - | FileCheck %s
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int* foo(int** a, int* b, int* c) {
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return __sync_val_compare_and_swap (a, b, c);
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}
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// CHECK: define i32* @foo
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// CHECK: cmpxchg
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int foo2(int** a, int* b, int* c) {
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return __sync_bool_compare_and_swap (a, b, c);
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}
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// CHECK: define i32 @foo2
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// CHECK: cmpxchg
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int* foo3(int** a, int b) {
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return __sync_fetch_and_add (a, b);
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}
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// CHECK: define i32* @foo3
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// CHECK: atomicrmw add
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int* foo4(int** a, int b) {
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return __sync_fetch_and_sub (a, b);
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}
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// CHECK: define i32* @foo4
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// CHECK: atomicrmw sub
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int* foo5(int** a, int* b) {
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return __sync_lock_test_and_set (a, b);
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}
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// CHECK: define i32* @foo5
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// CHECK: atomicrmw xchg
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int* foo6(int** a, int*** b) {
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return __sync_lock_test_and_set (a, b);
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}
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// CHECK: define i32* @foo6
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// CHECK: atomicrmw xchg
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