bcm5719-llvm - Project Ortega BCM5719 LLVM

	Commit message (Collapse)	Author	Age	Files	Lines
*	[Unroll] Do NOT unroll a loop with small runtime upperbound	Zhaoshi Zheng	2019-09-26	1	-0/+70
	For a runtime loop if we can compute its trip count upperbound: Don't unroll if: 1. loop is not guaranteed to run either zero or upperbound iterations; and 2. trip count upperbound is less than UnrollMaxUpperBound Unless user or TTI asked to do so. If unrolling, limit unroll factor to loop's trip count upperbound. Differential Revision: https://reviews.llvm.org/D62989 Change-Id: I6083c46a9d98b2e22cd855e60523fdc5a4929c73 llvm-svn: 373017