On Tue, 27 May 2003, Doug Rabson wrote: > On Thursday 22 May 2003 6:32 pm, David O'Brien wrote: > > On Thu, May 22, 2003 at 09:36:23AM -0500, Anti wrote: > > > p4 should expand to "-march=pentium4 -mno-sse2" > > > > If we are going to make any change, it should be one we know will > > deal with the issue once and for all. I also considered submitting a > > patch like that, but it is too late in the game to figure out if > > "-march=pentium4 -mno-sse2" would be sufficient in all cases. > > Even for special cases, it is hard to use -msse (or -msse2) with > gcc-3.2.x since it doesn't always manage to 16-byte align the stack > pointer. This makes it hard to declare local vector float variables > safely. All of this appears to be fixed in gcc-3.3-prerelease at least. Isn't this "fixed" in gcc-3.any (gcc-3.2 on i386's at least) except for signal stacks which are partly the kernel's responsibility? gcc-3.2 still pessimizes stack alignment and invites bugs by doing it in functions that don't need it and depending on callers doing it. BruceReceived on Tue May 27 2003 - 01:10:26 UTC
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