5 Commits

Author	SHA1	Message	Date
Matt Pharr	5b20b06bd9	Add avg_{up,down}_int{8,16} routines to stdlib ... These compute the average of two given values, rounding up and down, respectively, if the result isn't exact. When possible, these are mapped to target-specific intrinsics (PADD[BW] on IA and VH[R]ADD[US] on NEON.) A subsequent commit will add pattern-matching to generate calls to these intrinsincs when the corresponding patterns are detected in the IR.)	2013-08-06 08:41:12 -07:00
Matt Pharr	d9c38b5c1f	Remove support for using SVML for math lib routines. ... This path was poorly maintained and wasn't actually available on most targets.	2013-07-31 06:56:48 -07:00
Matt Pharr	b6df447b55	Add reduce_add() for int8 and int16 types. ... This maps to specialized instructions (e.g. PSADBW) when available.	2013-07-25 09:46:01 -07:00
Matt Pharr	2d063925a1	Explicitly call the PBLENDVB intrinsic for i8 blending with sse4-8. ... This is slightly cleaner than trunc-ing the i8 mask to i1 and using a vector select. (And is probably more safe in terms of good code.)	2013-07-25 09:46:01 -07:00
Matt Pharr	53414f12e6	Add SSE4 target optimized for computation with 8-bit datatypes. ... This change adds a new 'sse4-8' target, where programCount is 16 and the mask element size is 8-bits. (i.e. the most appropriate sizing of the mask for SIMD computation with 8-bit datatypes.)	2013-07-23 17:30:32 -07:00