Module: libav Branch: master Commit: 2fb1d17a5a6b6ff8da2434cde0fda821f06f608c
Author: Anton Mitrofanov <[email protected]> Committer: Anton Khirnov <[email protected]> Date: Wed Apr 20 19:35:34 2016 +0200 x86inc: Enable AVX emulation in additional cases Allows emulation to work when dst is equal to src2 as long as the instruction is commutative, e.g. `addps m0, m1, m0`. Signed-off-by: Anton Khirnov <[email protected]> --- libavutil/x86/x86inc.asm | 21 +++++++++++++-------- 1 file changed, 13 insertions(+), 8 deletions(-) diff --git a/libavutil/x86/x86inc.asm b/libavutil/x86/x86inc.asm index b79cc19..dca1f78 100644 --- a/libavutil/x86/x86inc.asm +++ b/libavutil/x86/x86inc.asm @@ -1129,14 +1129,12 @@ INIT_XMM %if __emulate_avx %xdefine __src1 %7 %xdefine __src2 %8 - %ifnidn %6, %7 - %if %0 >= 9 - CHECK_AVX_INSTR_EMU {%1 %6, %7, %8, %9}, %6, %8, %9 - %else - CHECK_AVX_INSTR_EMU {%1 %6, %7, %8}, %6, %8 - %endif - %if %5 && %4 == 0 - %ifnnum sizeof%8 + %if %5 && %4 == 0 + %ifnidn %6, %7 + %ifidn %6, %8 + %xdefine __src1 %8 + %xdefine __src2 %7 + %elifnnum sizeof%8 ; 3-operand AVX instructions with a memory arg can only have it in src2, ; whereas SSE emulation prefers to have it in src1 (i.e. the mov). ; So, if the instruction is commutative with a memory arg, swap them. @@ -1144,6 +1142,13 @@ INIT_XMM %xdefine __src2 %7 %endif %endif + %endif + %ifnidn %6, __src1 + %if %0 >= 9 + CHECK_AVX_INSTR_EMU {%1 %6, %7, %8, %9}, %6, __src2, %9 + %else + CHECK_AVX_INSTR_EMU {%1 %6, %7, %8}, %6, __src2 + %endif %if __sizeofreg == 8 MOVQ %6, __src1 %elif %3 _______________________________________________ libav-commits mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-commits
