bcm5719-llvm - Project Ortega BCM5719 LLVM

	Commit message (Collapse)	Author	Age	Files	Lines
*	Model ashr(shl(x, n), m) as mul(x, 2^(n-m)) when n > m	Zhaoshi Zheng	2017-03-23	1	-0/+89
	Given below case: %y = shl %x, n %z = ashr %y, m when n = m, SCEV models it as sext(trunc(x)). This patch tries to handle the case where n > m by using sext(mul(trunc(x), 2^(n-m)))) as the SCEV expression. llvm-svn: 298631