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| author | Harald Welte <laforge@gnumonks.org> | 2017-11-17 11:41:34 +0100 |
|---|---|---|
| committer | Harald Welte <laforge@gnumonks.org> | 2017-11-17 11:44:22 +0100 |
| commit | b93f60f7cd4bebbe6c26a456ea0b394fcafc731f (patch) | |
| tree | 9b3f1016596a2f15f9497369165db60b2e27d797 /configure.ac | |
| parent | d0682108964fe7928e75e24c450637a62331ad9f (diff) | |
conv_acc: Our code requires SSSE3, not just SSE3
The accelerated convolutional decoder uses SSSE3 instructions such
as PSIGNW (via _mm_sign_epi16) which go beyond what SSE3 offers. So
let's make sure we use the right compiler flag (-mssse3) and also the
right runtime check.
Without this patch, we would use illegal instructions e.g. on Opteron
Gen3 such as Opteron 2427, which are also used as build.opensuse.org
build hosts (build31 through build36) where we wouldn't pass "make
check" as a result.
Change-Id: I2754164384109f2821fd98ffb48f625893f2923d
Fixes: OS#2386
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac index a8c1d2e3..f7acf05c 100644 --- a/configure.ac +++ b/configure.ac @@ -281,7 +281,7 @@ then AX_CHECK_SIMD else AM_CONDITIONAL(HAVE_AVX2, false) - AM_CONDITIONAL(HAVE_SSE3, false) + AM_CONDITIONAL(HAVE_SSSE3, false) AM_CONDITIONAL(HAVE_SSE4_1, false) fi |