Hi Arvind, On Fri, Aug 21, 2020 at 11:55:52PM -0400, Arvind Sankar wrote: > Cc Segher. > > Segher, we were looking at gcc PR82602, where IRA could reorder volatile > asm's (reported on ARM). The fix was backported to gcc-6.
I know ;-) > Do you know if > there is any reason the problem couldn't occur on x86 on older gcc > without the fix? No, I see no particular reason, at least GCC 5 seems vulnerable. (The GCC 5 release branch was closed at the time this bug report was made, already). There is no reason I see why it would work on x86 but fail elsewhere, either. Segher
