Without this, code like "shufps m0, m1, m2, 0xaa" would not work in CPUs not supporting SSE2.
This is needed for my IMDCT36() patch (committed in ffmpeg, WIP for libav). -Vitor
From 711295e4e3a82eb47c20b87d391220d533c154e5 Mon Sep 17 00:00:00 2001 From: Vitor Sessak <[email protected]> Date: Sun, 27 Nov 2011 15:41:56 +0100 Subject: [PATCH] x86inc: Flag shufps as an floating-point instruction for the AVX emulation code. Without this, code like "shufps m0, m1, m2, 0xaa" would not work in CPUs not supporting SSE2. --- libavutil/x86/x86inc.asm | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/libavutil/x86/x86inc.asm b/libavutil/x86/x86inc.asm index 31f74b9..475e70e 100644 --- a/libavutil/x86/x86inc.asm +++ b/libavutil/x86/x86inc.asm @@ -1016,7 +1016,7 @@ AVX_INSTR punpcklwd, 0, 0, 0 AVX_INSTR punpckldq, 0, 0, 0 AVX_INSTR punpcklqdq, 0, 0, 0 AVX_INSTR pxor, 0, 0, 1 -AVX_INSTR shufps, 0, 1, 0 +AVX_INSTR shufps, 1, 1, 0 AVX_INSTR subpd, 1, 0, 0 AVX_INSTR subps, 1, 0, 0 AVX_INSTR subsd, 1, 0, 0 -- 1.7.0.4
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