From: Loren Merritt <[email protected]>
For when we want to mix simd sizes within one function.
---
libavutil/x86/x86inc.asm | 26 +++++++++++++++++++++++++-
1 file changed, 25 insertions(+), 1 deletion(-)
diff --git a/libavutil/x86/x86inc.asm b/libavutil/x86/x86inc.asm
index 9944b8f..6878b35 100644
--- a/libavutil/x86/x86inc.asm
+++ b/libavutil/x86/x86inc.asm
@@ -792,7 +792,11 @@ SECTION .note.GNU-stack noalloc noexec nowrite progbits
%endif
%endmacro
-; merge mmx and sse*
+; Merge mmx and sse*
+; m# is a simd regsiter of the currently selected size
+; xm# is the corresponding xmmreg (if selcted xmm or ymm size), or mmreg (if
selected mmx)
+; ym# is the corresponding ymmreg (if selcted xmm or ymm size), or mmreg (if
selected mmx)
+; (All 3 remain in sync through SWAP.)
%macro CAT_XDEFINE 3
%xdefine %1%2 %3
@@ -869,6 +873,26 @@ SECTION .note.GNU-stack noalloc noexec nowrite progbits
INIT_XMM
+%macro DECLARE_MMCAST 1
+ %define mmmm%1 mm%1
+ %define mmxmm%1 mm%1
+ %define mmymm%1 mm%1
+ %define xmmmm%1 mm%1
+ %define xmmxmm%1 xmm%1
+ %define xmmymm%1 xmm%1
+ %define ymmmm%1 mm%1
+ %define ymmxmm%1 ymm%1
+ %define ymmymm%1 ymm%1
+ %define xm%1 xmm %+ m%1
+ %define ym%1 ymm %+ m%1
+%endmacro
+
+%assign i 0
+%rep 16
+ DECLARE_MMCAST i
+%assign i i+1
+%endrep
+
; I often want to use macros that permute their arguments. e.g. there's no
; efficient way to implement butterfly or transpose or dct without swapping
some
; arguments.
--
1.8.3.msysgit.0
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