Implement support for 18 of the GNU-compatible __atomic builtins.
This is not quite sufficient for libstdc++'s <atomic>: we still need
__atomic_test_and_set and __atomic_clear, and may need a more complete
__atomic_is_lock_free implementation.
We are also missing an implementation of __atomic_always_lock_free,
__atomic_nand_fetch, and __atomic_fetch_nand, but those aren't needed
for libstdc++.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154579 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/Expr.cpp b/lib/AST/Expr.cpp
index 2bb79a0..eb185b2 100644
--- a/lib/AST/Expr.cpp
+++ b/lib/AST/Expr.cpp
@@ -3858,20 +3858,44 @@
unsigned AtomicExpr::getNumSubExprs(AtomicOp Op) {
switch (Op) {
- case Init:
- case Load:
+ case AO__c11_atomic_init:
+ case AO__c11_atomic_load:
+ case AO__atomic_load_n:
return 2;
- case Store:
- case Xchg:
- case Add:
- case Sub:
- case And:
- case Or:
- case Xor:
+
+ case AO__c11_atomic_store:
+ case AO__c11_atomic_exchange:
+ case AO__atomic_load:
+ case AO__atomic_store:
+ case AO__atomic_store_n:
+ case AO__atomic_exchange_n:
+ case AO__c11_atomic_fetch_add:
+ case AO__c11_atomic_fetch_sub:
+ case AO__c11_atomic_fetch_and:
+ case AO__c11_atomic_fetch_or:
+ case AO__c11_atomic_fetch_xor:
+ case AO__atomic_fetch_add:
+ case AO__atomic_fetch_sub:
+ case AO__atomic_fetch_and:
+ case AO__atomic_fetch_or:
+ case AO__atomic_fetch_xor:
+ case AO__atomic_add_fetch:
+ case AO__atomic_sub_fetch:
+ case AO__atomic_and_fetch:
+ case AO__atomic_or_fetch:
+ case AO__atomic_xor_fetch:
return 3;
- case CmpXchgStrong:
- case CmpXchgWeak:
+
+ case AO__atomic_exchange:
+ return 4;
+
+ case AO__c11_atomic_compare_exchange_strong:
+ case AO__c11_atomic_compare_exchange_weak:
return 5;
+
+ case AO__atomic_compare_exchange:
+ case AO__atomic_compare_exchange_n:
+ return 6;
}
llvm_unreachable("unknown atomic op");
}