bcm5719-llvm - Project Ortega BCM5719 LLVM

	Commit message (Collapse)	Author	Age	Files	Lines
*	[InstCombine] Folding of shifts by the sum of positive values	Simon Pilgrim	2016-11-01	1	-0/+74
	This patch introduces the combine: (C1 shift (A add C2)) -> ((C1 shift C2) shift A) iff A and C2 are both positive If both A and C2 are know to be positive then we can safely split into 2 shifts, permitting the folding of the Inner shift. Fix for the spec benchmark case mentioned by @nadav on PR15141 (assuming we can prove that the inputs as positive). Differential Revision: https://reviews.llvm.org/D26000 llvm-svn: 285696