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authorMans Rullgard <mans@mansr.com>2012-08-06 00:34:51 +0100
committerMans Rullgard <mans@mansr.com>2012-08-07 15:22:20 +0100
commit180d43bc67cec071c5a0f4807aa66f7b6242edc1 (patch)
treecf8ac631f85d3fdc6940d0bd85b5a6821894f4e8 /configure
parent7238265052d3b7ec1aa61d6ddc72aa1910c22725 (diff)
downloadffmpeg-180d43bc67cec071c5a0f4807aa66f7b6242edc1.tar.gz
x86: use nop cpu directives only if supported
nasm does not support 'CPU foonop' directives. This adds a configure test for the directive and uses it only if supported. Signed-off-by: Mans Rullgard <mans@mansr.com>
Diffstat (limited to 'configure')
-rwxr-xr-xconfigure2
1 files changed, 2 insertions, 0 deletions
diff --git a/configure b/configure
index e9058d4c45..a97198c9ef 100755
--- a/configure
+++ b/configure
@@ -1084,6 +1084,7 @@ HAVE_LIST="
closesocket
cmov
cpuid
+ cpunop
dcbzl
dev_bktr_ioctl_bt848_h
dev_bktr_ioctl_meteor_h
@@ -2889,6 +2890,7 @@ EOF
die "yasm not found, use --disable-yasm for a crippled build"
check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4
+ check_yasm "CPU amdnop" && enable cpunop
fi
case "$cpu" in