diff options
| author |  digit@google.com <digit@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> | 2012-08-06 14:53:32 +0000 |
|---|---|---|
| committer | digit@google.com <digit@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> | 2012-08-06 14:53:32 +0000 |
| commit | 157d94465a47a57e30e5cf49cd57dccd903e27e2 (patch) | |
| tree | b8a4f2bd2c2b03a88865a2c13e58173bfe2f6eba /include/core | |
| parent | b932407520663c3b636fb6e6027dc53732a115fb (diff) | |
rm: Introduce SK_ARM_NEON_WRAP handy wrapper macro.
It is used to simplify arm/neon dispatch logic code.
Review URL: https://codereview.appspot.com/6458060
git-svn-id: http://skia.googlecode.com/svn/trunk@4958 2bbb7eff-a529-9590-31e7-b0007b416f81
Diffstat (limited to 'include/core')
| -rw-r--r-- | include/core/SkPreConfig.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/core/SkPreConfig.h b/include/core/SkPreConfig.h index bbf0124117..55b1abf3bc 100644 --- a/include/core/SkPreConfig.h +++ b/include/core/SkPreConfig.h @@ -173,5 +173,21 @@ #define SK_API #endif +////////////////////////////////////////////////////////////////////// + +/** + * Use SK_PURE_FUNC as an attribute to indicate that a function's + * return value only depends on the value of its parameters. This + * can help the compiler optimize out successive calls. + * + * Usage: + * void function(int params) SK_PURE_FUNC; + */ +#if defined(__GNUC__) +# define SK_PURE_FUNC __attribute__((pure)) +#else +# define SK_PURE_FUNC /* nothing */ +#endif + #endif |