diff options
| author | Steven Fuerst <svfuerst@gmail.com> | 2012-08-15 15:07:16 -0700 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2012-09-20 13:10:34 -0400 |
| commit | 9e9eb7c60d57620bfe46b2a489e7f56a5925115a (patch) | |
| tree | 8a22cea5cebee49a5e9bdbe205965270cc3414b4 /drivers | |
| parent | 747f49ba67b8895a5831ab539de551b916f3738c (diff) | |
Annotate int2float() as being a pure function.
This allows gcc to fold duplicate calls into a single call. Since
the current users do actually call it multiple times with the
same arguments, this is an obvious win.
Signed-off-by: Steven Fuerst <svfuerst@gmail.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/radeon/r600_blit.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/r600_blit_shaders.h | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/radeon/r600_blit.c b/drivers/gpu/drm/radeon/r600_blit.c index 7d8ac42e384..661fec2a2cc 100644 --- a/drivers/gpu/drm/radeon/r600_blit.c +++ b/drivers/gpu/drm/radeon/r600_blit.c @@ -499,7 +499,7 @@ set_default_state(drm_radeon_private_t *dev_priv) * as the fractional bits will not fit in a float. (It would be better to * round towards even as the fpu does, but that is slower.) */ -uint32_t int2float(uint32_t x) +__pure uint32_t int2float(uint32_t x) { uint32_t msb, exponent, fraction; diff --git a/drivers/gpu/drm/radeon/r600_blit_shaders.h b/drivers/gpu/drm/radeon/r600_blit_shaders.h index e17c2cbc662..2f3ce7a7597 100644 --- a/drivers/gpu/drm/radeon/r600_blit_shaders.h +++ b/drivers/gpu/drm/radeon/r600_blit_shaders.h @@ -35,5 +35,5 @@ extern const u32 r6xx_default_state[]; extern const u32 r6xx_ps_size, r6xx_vs_size; extern const u32 r6xx_default_size, r7xx_default_size; -uint32_t int2float(uint32_t x); +__pure uint32_t int2float(uint32_t x); #endif |