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Which version of GCC supports intrinsics independent of -mXXX?
- From: Jeffrey Walton <noloader at gmail dot com>
- To: "gcc-help at gcc dot gnu dot org" <gcc-help at gcc dot gnu dot org>
- Date: Mon, 17 Apr 2017 08:56:27 -0400
- Subject: Which version of GCC supports intrinsics independent of -mXXX?
- Authentication-results: sourceware.org; auth=none
- Reply-to: noloader at gmail dot com
Hi Everyone,
I'm trying to use SSE2 and SSSE3 intrinsics on some old hardware. The
program performs its own CPUID checks, so it knows when it can enter a
particular code path.
The program is compiled with -march=native, but the machine lacks
SSSE3 and above. It causing the compile to fail.
I recall seeing a GCC bug report that enabled intrinsics all time,
regardless of the machine's features. I can no longer locate the bug
report, so I don't know which version of GCC supports the feature.
My question is, which version of GCC supports intrinsics independent of -mXXX?
Thanks in advance.