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Re: [RFC PATCH, i386]: PR 36793: x86-64 does not get __sync_synchronize right
- From: rridge at csclub dot uwaterloo dot ca (Ross Ridge)
- To: gcc-patches at gcc dot gnu dot org
- Date: Mon, 24 Nov 2008 16:48:51 -0500 (EST)
- Subject: Re: [RFC PATCH, i386]: PR 36793: x86-64 does not get __sync_synchronize right
H.J. Lu writes:
>This patch caused
Without looking at the test case, it could be because in the non-SSE2
case there's no memory clobber emitted, so it's no longer acting as a
memory barrier to the compiler.