bcm5719-llvm - Project Ortega BCM5719 LLVM

	Commit message (Collapse)	Author	Age	Files	Lines
*	[PowerPC][NFC] Avoid checking non-relevant .cfi instructions	Jinsong Ji	2019-08-30	1	-3/+1
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	Summary: This is brought up in https://reviews.llvm.org/D64662?id=209923#inline-599490 CFI information are non-relevant to quite some testcases, we should get rid of checking them when its unecessary. This patch avoid generating cfi info in testcases that are not testing prolog/epilog or exception handling. Reviewers: kbarton, hfinkel, nemanjai, #powerpc Reviewed By: hfinkel Subscribers: MaskRay, shchenz, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D67016 llvm-svn: 370505
*	[PowerPC] Collapse RLDICL/RLDICR into RLDIC when possible	Nemanja Ivanovic	2019-06-05	1	-0/+122
	Generally speaking, we lower to an optimal rotate sequence for nodes visible in the SDAG. However, there are instances where the two rotates are not visible at ISEL time - most notably those in a very common sequence when lowering switch statements to jump tables. A common situation is a switch on a 32-bit integer. This value has to have the upper 32 bits cleared and because jump table offsets are word offsets, the value needs to be shifted left by 2 bits. We currently emit the clear and the left shift as two separate instructions, but this is not needed as we can lower it to a single RLDIC. This patch just cleans that up. Differential revision: https://reviews.llvm.org/D60402 llvm-svn: 362576