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From: "tuliom at ascii dot art.br" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/101865] _ARCH_PWR8 is not defined when using -mcpu=power8
Date: Thu, 26 Aug 2021 13:56:31 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D101865

--- Comment #12 from Tulio Magno Quites Machado Filho <tuliom at ascii dot =
art.br> ---
There is a chance, that my previous comment is wrong with regards the
generation of VSX instructions for Power8.

I don't know what the second command means:

$ gcc-11 -mcpu=3Dpower10 -dM -E - < /dev/null | grep -E 'VECTOR|VSX|ALTIVEC'
#define __VSX__ 1
#define __ALTIVEC__ 1
#define __POWER9_VECTOR__ 1
#define __APPLE_ALTIVEC__ 1
#define __POWER8_VECTOR__ 1
$ gcc-11 -mcpu=3Dpower10 -mno-power8-vector -dM -E - < /dev/null | grep -E
'VECTOR|VSX|ALTIVEC'
#define __VSX__ 1
#define __ALTIVEC__ 1
#define __APPLE_ALTIVEC__ 1=