diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2008-10-05 10:39:10 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2008-10-06 12:52:09 +0100 |
| commit | c98c1cb5325bbc05c88ea350ff99d6eaf56fd339 (patch) | |
| tree | dc16b0190efb8e0f52ace973d872671a887cf48a /src/cairo-compiler-private.h | |
| parent | 76dd4603d01068b1b377312ced6b44fe5419794f (diff) | |
| download | cairo-c98c1cb5325bbc05c88ea350ff99d6eaf56fd339.tar.gz | |
[wideint] Mark functions as pure
Take advantage of the gcc function attribute 'pure', which tells gcc that
the function result only depends upon its arguments and it has zero side
effects (e.g. it does not clobber memory). This gives gcc greater
opportunity to rearrange and optimize the wideint arithmetic.
Diffstat (limited to 'src/cairo-compiler-private.h')
| -rw-r--r-- | src/cairo-compiler-private.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/cairo-compiler-private.h b/src/cairo-compiler-private.h index fc4164516..d772f7715 100644 --- a/src/cairo-compiler-private.h +++ b/src/cairo-compiler-private.h @@ -111,6 +111,12 @@ # define CAIRO_FUNCTION_ALIAS(old, new) #endif +#if __GNUC__ >= 3 +#define cairo_pure __attribute__((pure)) +#else +#define cairo_pure +#endif + #ifndef __GNUC__ #undef __attribute__ #define __attribute__(x) |