aaron/ispc
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Add avg_{up,down}_int{8,16} routines to stdlib

Browse Source 
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.)
This commit is contained in:
Matt Pharr
2013-08-03 20:44:25 -07:00
parent 4f48d3258a
commit 5b20b06bd9
23 changed files with 592 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
builtins/target-sse2-common.ll
View File

@@ -269,4 +269,8 @@ define i64 @__popcnt_int64(i64) nounwind readnone alwaysinline {
ret i64 %val
}
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; int8/int16 builtins
define_avgs()