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From: "safety0ff.bugz at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libitm/53113] Build fails in x86_avx.cc if AVX disabled but supported by as (Solaris & Linux)
Date: Fri, 08 Jun 2012 15:22:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53113

safety0ff.bugz at gmail dot com changed:

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                 CC|                            |safety0ff.bugz at gmail dot
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--- Comment #1 from safety0ff.bugz at gmail dot com 2012-06-08 15:21:52 UTC ---
I have this problem too.

I'm using Gentoo x86_64, with GNU binutils 2.22 as well.
My CPU does support AVX (Intel Sandy Bridge.)

It is using the following flags:
-g -march=native -mtune=generic -mno-avx -O2 -pipe

It is a pain for me because Valgrind doesn't support AVX and compiling programs
with my system/default gcc version ends up using the 4.7 libgcc_s.so at run
time which will contain AVX code if I compile with AVX enabled.