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| author | Petri Hintukainen <phintuka@users.sourceforge.net> | 2013-09-30 12:15:06 +0300 |
|---|---|---|
| committer | Petri Hintukainen <phintuka@users.sourceforge.net> | 2013-09-30 12:15:06 +0300 |
| commit | 81bf5516c000d89a2fbc8da89bc6df0256032f0e (patch) | |
| tree | d81c2a53623d3bf95f86d282b49b77132f9e16ed | |
| parent | d4f4833db71a2566b79ed343070854a1bd4c916b (diff) | |
| download | xine-lib-81bf5516c000d89a2fbc8da89bc6df0256032f0e.tar.gz xine-lib-81bf5516c000d89a2fbc8da89bc6df0256032f0e.tar.bz2 | |
Fix READ_PREFETCH_2048 so that it won't be optimized out, re-ordered or interleaved by compiler. Simplify generated code (no add).
| -rw-r--r-- | src/post/deinterlace/speedtools.h | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/src/post/deinterlace/speedtools.h b/src/post/deinterlace/speedtools.h index 94ab1918d..b4cddee6b 100644 --- a/src/post/deinterlace/speedtools.h +++ b/src/post/deinterlace/speedtools.h @@ -31,16 +31,21 @@ prefetchnta( pfetcha + 128 ); \ prefetchnta( pfetcha + 192 ); } +static inline unsigned int read_pf(volatile unsigned int *addr) +{ + return *addr; +} + #define READ_PREFETCH_2048(x) \ - { int *pfetcha = (int *) x; int pfetchtmp; \ - pfetchtmp = pfetcha[ 0 ] + pfetcha[ 16 ] + pfetcha[ 32 ] + pfetcha[ 48 ] + \ - pfetcha[ 64 ] + pfetcha[ 80 ] + pfetcha[ 96 ] + pfetcha[ 112 ] + \ - pfetcha[ 128 ] + pfetcha[ 144 ] + pfetcha[ 160 ] + pfetcha[ 176 ] + \ - pfetcha[ 192 ] + pfetcha[ 208 ] + pfetcha[ 224 ] + pfetcha[ 240 ]; \ - pfetcha += 256; \ - pfetchtmp = pfetcha[ 0 ] + pfetcha[ 16 ] + pfetcha[ 32 ] + pfetcha[ 48 ] + \ - pfetcha[ 64 ] + pfetcha[ 80 ] + pfetcha[ 96 ] + pfetcha[ 112 ] + \ - pfetcha[ 128 ] + pfetcha[ 144 ] + pfetcha[ 160 ] + pfetcha[ 176 ] + \ - pfetcha[ 192 ] + pfetcha[ 208 ] + pfetcha[ 224 ] + pfetcha[ 240 ]; } + { int * pfetcha = (int *) x; \ + read_pf(pfetcha); read_pf(pfetcha + 16); read_pf(pfetcha + 32); read_pf(pfetcha + 48); \ + read_pf(pfetcha + 64); read_pf(pfetcha + 80); read_pf(pfetcha + 96); read_pf(pfetcha + 112); \ + read_pf(pfetcha + 128); read_pf(pfetcha + 144); read_pf(pfetcha + 160); read_pf(pfetcha + 176); \ + read_pf(pfetcha + 192); read_pf(pfetcha + 208); read_pf(pfetcha + 224); read_pf(pfetcha + 240); \ + pfetcha += 256; \ + read_pf(pfetcha); read_pf(pfetcha + 16); read_pf(pfetcha + 32); read_pf(pfetcha + 48); \ + read_pf(pfetcha + 64); read_pf(pfetcha + 80); read_pf(pfetcha + 96); read_pf(pfetcha + 112); \ + read_pf(pfetcha + 128); read_pf(pfetcha + 144); read_pf(pfetcha + 160); read_pf(pfetcha + 176); \ + read_pf(pfetcha + 192); read_pf(pfetcha + 208); read_pf(pfetcha + 224); read_pf(pfetcha + 240); } #endif /* SPEEDTOOLS_H_INCLUDED */ |