[Ffmpeg-cvslog] CVS: ffmpeg/libavcodec/i386 h264dsp_mmx.c, 1.16, 1.17

[Loren Merritt CVS]

Update of /cvsroot/ffmpeg/ffmpeg/libavcodec/i386
In directory mail:/var2/tmp/cvs-serv11287/i386

Modified Files:
	h264dsp_mmx.c 
Log Message:
remove some useless instructions



Index: h264dsp_mmx.c
===================================================================
RCS file: /cvsroot/ffmpeg/ffmpeg/libavcodec/i386/h264dsp_mmx.c,v
retrieving revision 1.16
retrieving revision 1.17
diff -u -d -r1.16 -r1.17
--- h264dsp_mmx.c	2 Mar 2006 08:21:08 -0000	1.16
+++ h264dsp_mmx.c	4 Mar 2006 19:56:01 -0000	1.17
@@ -109,12 +109,9 @@
     int dc = (block[0] + 32) >> 6;
     asm volatile(
         "movd          %0, %%mm0 \n\t"
-        "pxor       %%mm7, %%mm7 \n\t"
         "pshufw $0, %%mm0, %%mm0 \n\t"
         "pxor       %%mm1, %%mm1 \n\t"
         "psubw      %%mm0, %%mm1 \n\t"
-        "pmaxsw     %%mm7, %%mm0 \n\t"
-        "pmaxsw     %%mm7, %%mm1 \n\t"
         "packuswb   %%mm0, %%mm0 \n\t"
         "packuswb   %%mm1, %%mm1 \n\t"
         ::"r"(dc)
@@ -149,12 +146,9 @@
     int y;
     asm volatile(
         "movd          %0, %%mm0 \n\t"
-        "pxor       %%mm7, %%mm7 \n\t"
         "pshufw $0, %%mm0, %%mm0 \n\t"
         "pxor       %%mm1, %%mm1 \n\t"
         "psubw      %%mm0, %%mm1 \n\t"
-        "pmaxsw     %%mm7, %%mm0 \n\t"
-        "pmaxsw     %%mm7, %%mm1 \n\t"
         "packuswb   %%mm0, %%mm0 \n\t"
         "packuswb   %%mm1, %%mm1 \n\t"
         ::"r"(dc)
@@ -972,7 +966,6 @@
 static void OPNAME ## pixels4_l2_shift5_ ## MMX(uint8_t *dst, int16_t *src16, uint8_t *src8, int dstStride, int src8Stride, int h)\
 {\
     asm volatile(\
-        "pxor     %%mm7, %%mm7          \n\t"\
         "movq       %5,  %%mm6          \n\t"\
         "movq      (%1), %%mm0          \n\t"\
         "movq    24(%1), %%mm1          \n\t"\
@@ -980,10 +973,8 @@
         "paddw    %%mm6, %%mm1          \n\t"\
         "psraw      $5,  %%mm0          \n\t"\
         "psraw      $5,  %%mm1          \n\t"\
-        "pmaxsw   %%mm7, %%mm0          \n\t"\
-        "pmaxsw   %%mm7, %%mm1          \n\t"\
-        "packuswb %%mm7, %%mm0          \n\t"\
-        "packuswb %%mm7, %%mm1          \n\t"\
+        "packuswb %%mm0, %%mm0          \n\t"\
+        "packuswb %%mm1, %%mm1          \n\t"\
         PAVGB"     (%0), %%mm0          \n\t"\
         PAVGB"  (%0,%3), %%mm1          \n\t"\
         OP(%%mm0, (%2),    %%mm4, d)\
@@ -996,10 +987,8 @@
         "paddw    %%mm6, %%mm1          \n\t"\
         "psraw      $5,  %%mm0          \n\t"\
         "psraw      $5,  %%mm1          \n\t"\
-        "pmaxsw   %%mm7, %%mm0          \n\t"\
-        "pmaxsw   %%mm7, %%mm1          \n\t"\
-        "packuswb %%mm7, %%mm0          \n\t"\
-        "packuswb %%mm7, %%mm1          \n\t"\
+        "packuswb %%mm0, %%mm0          \n\t"\
+        "packuswb %%mm1, %%mm1          \n\t"\
         PAVGB"     (%0), %%mm0          \n\t"\
         PAVGB"  (%0,%3), %%mm1          \n\t"\
         OP(%%mm0, (%2),    %%mm4, d)\
@@ -1011,7 +1000,6 @@
 static void OPNAME ## pixels8_l2_shift5_ ## MMX(uint8_t *dst, int16_t *src16, uint8_t *src8, int dstStride, int src8Stride, int h)\
 {\
     asm volatile(\
-        "pxor     %%mm7, %%mm7          \n\t"\
         "movq       %0,  %%mm6          \n\t"\
         ::"m"(ff_pw_16)\
         );\
@@ -1023,8 +1011,6 @@
         "paddw    %%mm6, %%mm1          \n\t"\
         "psraw      $5,  %%mm0          \n\t"\
         "psraw      $5,  %%mm1          \n\t"\
-        "pmaxsw   %%mm7, %%mm0          \n\t"\
-        "pmaxsw   %%mm7, %%mm1          \n\t"\
         "packuswb %%mm1, %%mm0          \n\t"\
         PAVGB"     (%0), %%mm0          \n\t"\
         OP(%%mm0, (%2), %%mm5, q)\