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| author | Michael Niedermayer <michaelni@gmx.at> | 2001-11-06 19:26:22 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2001-11-06 19:26:22 +0000 |
| commit | 3fe8e8f0689e3196101cd6c7bc5be6c423b41a49 (patch) | |
| tree | 21ac39a4f0e2dc64631dd4fec046af1dccb69d4c /postproc | |
| parent | da3b92c877dd48fc46f0f2a0a23624bffd82fe34 (diff) | |
| download | ffmpeg-3fe8e8f0689e3196101cd6c7bc5be6c423b41a49.tar.gz | |
gcc does optimize writes to non volatile variables away if it didnt know that they were read in between
Originally committed as revision 2751 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc
Diffstat (limited to 'postproc')
| -rw-r--r-- | postproc/postprocess.c | 4 | ||||
| -rw-r--r-- | postproc/postprocess_template.c | 4 | ||||
| -rw-r--r-- | postproc/swscale.c | 8 | ||||
| -rw-r--r-- | postproc/swscale_template.c | 8 |
4 files changed, 12 insertions, 12 deletions
diff --git a/postproc/postprocess.c b/postproc/postprocess.c index d466b67ee5..902a6298e5 100644 --- a/postproc/postprocess.c +++ b/postproc/postprocess.c @@ -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; diff --git a/postproc/postprocess_template.c b/postproc/postprocess_template.c index d466b67ee5..902a6298e5 100644 --- a/postproc/postprocess_template.c +++ b/postproc/postprocess_template.c @@ -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; diff --git a/postproc/swscale.c b/postproc/swscale.c index 8ea2396c70..f40eccf207 100644 --- a/postproc/swscale.c +++ b/postproc/swscale.c @@ -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, diff --git a/postproc/swscale_template.c b/postproc/swscale_template.c index 8ea2396c70..f40eccf207 100644 --- a/postproc/swscale_template.c +++ b/postproc/swscale_template.c @@ -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, |