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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
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@ -116,8 +116,8 @@ Notes:
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#define OPTIONS_ARRAY_SIZE 10
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#ifdef HAVE_MMX
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static uint64_t __attribute__((aligned(8))) packedYOffset= 0x0000000000000000LL;
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static uint64_t __attribute__((aligned(8))) packedYScale= 0x0100010001000100LL;
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static volatile uint64_t __attribute__((aligned(8))) packedYOffset= 0x0000000000000000LL;
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static volatile uint64_t __attribute__((aligned(8))) packedYScale= 0x0100010001000100LL;
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static uint64_t __attribute__((aligned(8))) w05= 0x0005000500050005LL;
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static uint64_t __attribute__((aligned(8))) w20= 0x0020002000200020LL;
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static uint64_t __attribute__((aligned(8))) w1400= 0x1400140014001400LL;
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@ -116,8 +116,8 @@ Notes:
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#define OPTIONS_ARRAY_SIZE 10
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#ifdef HAVE_MMX
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static uint64_t __attribute__((aligned(8))) packedYOffset= 0x0000000000000000LL;
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static uint64_t __attribute__((aligned(8))) packedYScale= 0x0100010001000100LL;
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static volatile uint64_t __attribute__((aligned(8))) packedYOffset= 0x0000000000000000LL;
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static volatile uint64_t __attribute__((aligned(8))) packedYScale= 0x0100010001000100LL;
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static uint64_t __attribute__((aligned(8))) w05= 0x0005000500050005LL;
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static uint64_t __attribute__((aligned(8))) w20= 0x0020002000200020LL;
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static uint64_t __attribute__((aligned(8))) w1400= 0x1400140014001400LL;
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@ -71,10 +71,10 @@ static uint64_t __attribute__((aligned(8))) bm00001111=0x00000000FFFFFFFFLL;
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static uint64_t __attribute__((aligned(8))) bm00000111=0x0000000000FFFFFFLL;
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static uint64_t __attribute__((aligned(8))) bm11111000=0xFFFFFFFFFF000000LL;
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static uint64_t __attribute__((aligned(8))) b5Dither;
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static uint64_t __attribute__((aligned(8))) g5Dither;
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static uint64_t __attribute__((aligned(8))) g6Dither;
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static uint64_t __attribute__((aligned(8))) r5Dither;
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static volatile uint64_t __attribute__((aligned(8))) b5Dither;
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static volatile uint64_t __attribute__((aligned(8))) g5Dither;
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static volatile uint64_t __attribute__((aligned(8))) g6Dither;
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static volatile uint64_t __attribute__((aligned(8))) r5Dither;
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static uint64_t __attribute__((aligned(8))) dither4[2]={
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0x0103010301030103LL,
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@ -71,10 +71,10 @@ static uint64_t __attribute__((aligned(8))) bm00001111=0x00000000FFFFFFFFLL;
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static uint64_t __attribute__((aligned(8))) bm00000111=0x0000000000FFFFFFLL;
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static uint64_t __attribute__((aligned(8))) bm11111000=0xFFFFFFFFFF000000LL;
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static uint64_t __attribute__((aligned(8))) b5Dither;
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static uint64_t __attribute__((aligned(8))) g5Dither;
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static uint64_t __attribute__((aligned(8))) g6Dither;
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static uint64_t __attribute__((aligned(8))) r5Dither;
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static volatile uint64_t __attribute__((aligned(8))) b5Dither;
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static volatile uint64_t __attribute__((aligned(8))) g5Dither;
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static volatile uint64_t __attribute__((aligned(8))) g6Dither;
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static volatile uint64_t __attribute__((aligned(8))) r5Dither;
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static uint64_t __attribute__((aligned(8))) dither4[2]={
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0x0103010301030103LL,
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