virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-11-21 10:55:51 +02:00
Code Issues Releases Activity

gcc does optimize writes to non volatile variables away if it didnt know that they were read in between

Browse Source 
Originally committed as revision 2751 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc
This commit is contained in:
Michael Niedermayer 2001-11-06 19:26:22 +00:00
parent da3b92c877
commit 3fe8e8f068
4 changed files with 12 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
postproc/postprocess.c
View File

@ -116,8 +116,8 @@ Notes:
#define OPTIONS_ARRAY_SIZE 10
#ifdef HAVE_MMX
static uint64_t __attribute__((aligned(8))) packedYOffset= 0x0000000000000000LL;
static uint64_t __attribute__((aligned(8))) packedYScale= 0x0100010001000100LL;
static volatile uint64_t __attribute__((aligned(8))) packedYOffset= 0x0000000000000000LL;
static volatile uint64_t __attribute__((aligned(8))) packedYScale= 0x0100010001000100LL;
static uint64_t __attribute__((aligned(8))) w05= 0x0005000500050005LL;
static uint64_t __attribute__((aligned(8))) w20= 0x0020002000200020LL;
static uint64_t __attribute__((aligned(8))) w1400= 0x1400140014001400LL;

4
postproc/postprocess_template.c
View File

@ -116,8 +116,8 @@ Notes:
#define OPTIONS_ARRAY_SIZE 10
#ifdef HAVE_MMX
static uint64_t __attribute__((aligned(8))) packedYOffset= 0x0000000000000000LL;
static uint64_t __attribute__((aligned(8))) packedYScale= 0x0100010001000100LL;
static volatile uint64_t __attribute__((aligned(8))) packedYOffset= 0x0000000000000000LL;
static volatile uint64_t __attribute__((aligned(8))) packedYScale= 0x0100010001000100LL;
static uint64_t __attribute__((aligned(8))) w05= 0x0005000500050005LL;
static uint64_t __attribute__((aligned(8))) w20= 0x0020002000200020LL;
static uint64_t __attribute__((aligned(8))) w1400= 0x1400140014001400LL;

8
postproc/swscale.c
View File

@ -71,10 +71,10 @@ static uint64_t __attribute__((aligned(8))) bm00001111=0x00000000FFFFFFFFLL;
static uint64_t __attribute__((aligned(8))) bm00000111=0x0000000000FFFFFFLL;
static uint64_t __attribute__((aligned(8))) bm11111000=0xFFFFFFFFFF000000LL;
static uint64_t __attribute__((aligned(8))) b5Dither;
static uint64_t __attribute__((aligned(8))) g5Dither;
static uint64_t __attribute__((aligned(8))) g6Dither;
static uint64_t __attribute__((aligned(8))) r5Dither;
static volatile uint64_t __attribute__((aligned(8))) b5Dither;
static volatile uint64_t __attribute__((aligned(8))) g5Dither;
static volatile uint64_t __attribute__((aligned(8))) g6Dither;
static volatile uint64_t __attribute__((aligned(8))) r5Dither;
static uint64_t __attribute__((aligned(8))) dither4[2]={
0x0103010301030103LL,

8
postproc/swscale_template.c
View File

@ -71,10 +71,10 @@ static uint64_t __attribute__((aligned(8))) bm00001111=0x00000000FFFFFFFFLL;
static uint64_t __attribute__((aligned(8))) bm00000111=0x0000000000FFFFFFLL;
static uint64_t __attribute__((aligned(8))) bm11111000=0xFFFFFFFFFF000000LL;
static uint64_t __attribute__((aligned(8))) b5Dither;
static uint64_t __attribute__((aligned(8))) g5Dither;
static uint64_t __attribute__((aligned(8))) g6Dither;
static uint64_t __attribute__((aligned(8))) r5Dither;
static volatile uint64_t __attribute__((aligned(8))) b5Dither;
static volatile uint64_t __attribute__((aligned(8))) g5Dither;
static volatile uint64_t __attribute__((aligned(8))) g6Dither;
static volatile uint64_t __attribute__((aligned(8))) r5Dither;
static uint64_t __attribute__((aligned(8))) dither4[2]={
0x0103010301030103LL,