bcm5719-llvm - Project Ortega BCM5719 LLVM

	Commit message (Collapse)	Author	Age	Files	Lines
*	[SystemZ] Improve instruction selection of 64 bit shifts and rotates.	Jonas Paulsson	2019-04-02	1	-0/+82
	For shift and rotate instructions that only use the last 6 bits of the shift amount, a shift amount of (x*64-s) can be substituted with (-s). This saves one instruction and a register: lhi %r1, 64 sr %r1, %r3 sllg %r2, %r2, 0(%r1) => lcr %r1, %r3 sllg %r2, %r2, 0(%r1) Review: Ulrich Weigand llvm-svn: 357481