bcm5719-llvm - Project Ortega BCM5719 LLVM

	Commit message (Collapse)	Author	Age	Files	Lines
*	[DAGCombiner] Don't allow addcarry if the carry producer is illegal.	Jonas Paulsson	2019-03-27	1	-0/+35
	getAsCarry() checks that the input argument is a carry-producing node before allowing a transformation to addcarry. This patch adds a check to make sure that the carry-producing node is legal. If it is not, it may not remain in a form that is manageable by the target backend. The test case caused a compilation failure during instruction selection for this reason on SystemZ. Patch by Ulrich Weigand. Review: Sanjay Patel https://reviews.llvm.org/D59822 llvm-svn: 357052