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vp8_block_error_xmm: remove unnecessary instructions

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Remove a couple instructions from this function which weren't
necessary for correct execution.

Change-Id: Ib649674f140689f7e5c1530c35686241688a3151
This commit is contained in:
Jim Bankoski 2010-06-16 12:36:53 -04:00 committed by John Koleszar
parent 9484bf7f57
commit 220daa00e0
1 changed files with 12 additions and 22 deletions
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34
vp8/encoder/x86/encodeopt.asm
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@ -11,7 +11,6 @@
%include "vpx_ports/x86_abi_support.asm"
;int vp8_block_error_xmm(short *coeff_ptr, short *dcoef_ptr)
global sym(vp8_block_error_xmm)
sym(vp8_block_error_xmm):
@ -20,11 +19,9 @@ sym(vp8_block_error_xmm):
SHADOW_ARGS_TO_STACK 2
push rsi
push rdi
; end prolog
; end prologue
mov rsi, arg(0) ;coeff_ptr
pxor xmm7, xmm7
mov rdi, arg(1) ;dcoef_ptr
movdqa xmm3, [rsi]
@ -33,31 +30,25 @@ sym(vp8_block_error_xmm):
movdqa xmm5, [rsi+16]
movdqa xmm6, [rdi+16]
pxor xmm1, xmm1 ; from movd xmm1, dc; dc=0
movdqa xmm2, xmm7
psubw xmm5, xmm6
por xmm1, xmm2
pmaddwd xmm5, xmm5
pcmpeqw xmm1, xmm7
psubw xmm3, xmm4
pand xmm1, xmm3
pmaddwd xmm1, xmm1
psubw xmm5, xmm6
pmaddwd xmm3, xmm3
pmaddwd xmm5, xmm5
paddd xmm1, xmm5
movdqa xmm0, xmm1
paddd xmm3, xmm5
pxor xmm7, xmm7
movdqa xmm0, xmm3
punpckldq xmm0, xmm7
punpckhdq xmm1, xmm7
punpckhdq xmm3, xmm7
paddd xmm0, xmm1
movdqa xmm1, xmm0
paddd xmm0, xmm3
movdqa xmm3, xmm0
psrldq xmm0, 8
paddd xmm0, xmm1
paddd xmm0, xmm3
movd rax, xmm0
@ -68,7 +59,6 @@ sym(vp8_block_error_xmm):
pop rbp
ret
;int vp8_block_error_mmx(short *coeff_ptr, short *dcoef_ptr)
global sym(vp8_block_error_mmx)
sym(vp8_block_error_mmx):