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authorMans Rullgard <mans@mansr.com>2011-12-12 01:33:17 +0000
committerMans Rullgard <mans@mansr.com>2011-12-12 12:14:15 +0000
commit5b0d35eaedbb08d0c11fa4f2b47a24d91aaa294d (patch)
tree09f37c0b8353bda28d57f6a78cdcda48193f5910 /libavutil
parentf64c2e710fa1a7b59753224e717f57c48462076f (diff)
x86: bswap: remove test for bswap instruction
Firstly, this test never worked as intended, always reporting success. Secondly, bswap is available from 486 onward and can thus be assumed present. Signed-off-by: Mans Rullgard <mans@mansr.com>
Diffstat (limited to 'libavutil')
-rw-r--r--libavutil/x86/bswap.h7
1 files changed, 0 insertions, 7 deletions
diff --git a/libavutil/x86/bswap.h b/libavutil/x86/bswap.h
index 6840b632cb..c6cf007c86 100644
--- a/libavutil/x86/bswap.h
+++ b/libavutil/x86/bswap.h
@@ -41,14 +41,7 @@ static av_always_inline av_const unsigned av_bswap16(unsigned x)
#define av_bswap32 av_bswap32
static av_always_inline av_const uint32_t av_bswap32(uint32_t x)
{
-#if HAVE_BSWAP
__asm__("bswap %0" : "+r" (x));
-#else
- __asm__("rorw $8, %w0 \n\t"
- "rorl $16, %0 \n\t"
- "rorw $8, %w0"
- : "+r"(x));
-#endif
return x;
}