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Author SHA1 Message Date
Kai Luo 1931ed73c3 [PowerPC][Peephole] Combine extsw and sldi after instruction selection 
Summary:
`extsw` and `sldi` are supposed to be combined if they are in the same
BB in instruction selection phase. This patch handles the case where
extsw and sldi are not in the same BB.

Differential Revision: https://reviews.llvm.org/D63806

llvm-svn: 365430
 2019-07-09 02:55:08 +00:00
Kai Luo 8faff5606e [PowerPC][NFC] Added test for sext/shl combination after isel. 
llvm-svn: 363118
 2019-06-12 02:45:27 +00:00