On 01/20/2016 05:11 PM, Martin Sebor wrote:
The bug points out that while the __sync_fetch_and_OP intrinsics are documented to have semantics equivalent to the "x OP= y" compound assignment expressions, when used with pointer operands they actually behave as if they operated on integers. I.e., they are not scaled by the size of the pointed-to type.The attached patch brings the documentation of both the __sync_ and the __atomic_ intrinsics into alignment with their actual effects. Martin PS See also c/64843 for some additional background. gcc-52291.patch 2016-01-20 Martin Sebor<mse...@redhat.com> PR c/52291 * extend.texi (__sync Builtins): Clarify the semantics aof __sync_fetch_and_OP built-ins on pointers. (__atomic Builtins): Same.
OK jeff
