* [BUG/PATCH] ppc64 g5 and cell optimizations result in .machine power7
@ 2020-12-03 12:00 René Rebe
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From: René Rebe @ 2020-12-03 12:00 UTC (permalink / raw)
To: gcc-patches
Hi,
Since reworking the rs6000 .machine output selection in commit e154242724b084380e3221df7c08fcdbd8460674 22 May 2019, compiling glibc with either G5 or cell results in power7 assembly optimizations to be chosen, which obviously crash with illegal instructions. This is because gcc's .machine output was accidentally changed due to OPTION_MASK_ALTIVEC only otherwise present in IBM CPUs since power7.
Bug & patch already at:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97367
Best regards,
René Rebe
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2020-12-03 12:00 [BUG/PATCH] ppc64 g5 and cell optimizations result in .machine power7 René Rebe
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