Commit 9e9eb7c6 authored Aug 15, 2012 by Steven Fuerst Committed by Alex Deucher Sep 20, 2012

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>

parent 747f49ba

drivers/gpu/drm/radeon/r600_blit.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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;

drivers/gpu/drm/radeon/r600_blit_shaders.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -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