Added builtin for atomic compare and exchange.

The new __builtin_atomic_compare_exchange(int *ptr,int *exp,int *dsr);
writes dsr into ptr if ptr is equal to exp and returns true if
ptr is not equal to exp it writes ptr into exp and returns false.

1 files changed, 1 insertions, 1 deletions

diff --git a/powerpc/Asmexpand.ml b/powerpc/Asmexpand.ml
index beaef42f..8cd123fe 100644
--- a/powerpc/Asmexpand.ml
+++ b/powerpc/Asmexpand.ml
@@ -527,7 +527,7 @@ let expand_builtin_inline name args res =
       and lblneq = new_label ()
       and lblsucc = new_label () in      
       emit (Plwz (GPR10,Cint _0,exp));
-      emit (Plwz (GPR11,Cint _0,exp));
+      emit (Plwz (GPR11,Cint _0,des));
       emit (Psync);
       emit (Plabel lbls);
       emit (Plwarx (GPR12,GPR0,dst));