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[Qemu-devel] [PATCH v3 0/2] AVX2 configure fixes

From: Dr. David Alan Gilbert (git)
Subject: [Qemu-devel] [PATCH v3 0/2] AVX2 configure fixes
Date: Fri, 10 Jun 2016 12:16:16 +0100

From: "Dr. David Alan Gilbert" <address@hidden>

  This pair of patches fixes a couple of issues that we found during test.
The first is that the configure test is pessimistic when compiled with -O2,
the second is that the explicit 4.9 gcc test is a bit coarse; I've removed
that test but beefed up the ./configure test to actually use the avx2
intrinsics and that fails in the same way as the main code, so it works
in the same way as the explicit check but allows older gcc's to work
when -save-temps isn't used.


  Use compile_object rather than compile_prog as suggested by Peter to
  hopefully fail on his ccache setup.

  Remove the explicit version check
  Split the patches

Dr. David Alan Gilbert (2):
  Make avx2 configure test work with -O2
  avx2 configure: Use primitives in test

 configure     | 17 ++++++++++++-----
 util/cutils.c |  8 +-------
 2 files changed, 13 insertions(+), 12 deletions(-)


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