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Author SHA1 Message Date
Nemanja Ivanovic f2588a28a8 [PowerPC] Recommit r340016 after fixing the reported issue 
The internal benchmark failure reported by Google was due to a missing
check for the result type for the sign-extend and shift DAG. This commit
adds the check and re-commits the patch.

llvm-svn: 340734
 2018-08-27 11:20:27 +00:00
Eric Christopher 3dc594c1e6 Temporarily Revert "[PowerPC] Generate Power9 extswsli extend sign and shift immediate instruction" due to it causing a compiler crash on valid. 
This reverts commit r340016, testcase forthcoming.

llvm-svn: 340315
 2018-08-21 18:35:08 +00:00
Nemanja Ivanovic 39751276b0 [PowerPC] Generate Power9 extswsli extend sign and shift immediate instruction 
Add a DAG combine for the PowerPC code generator to generate the Power9 extswsli
extend sign and shift immediate instruction.

Patch by RolandF.

Differential revision: https://reviews.llvm.org/D49879

llvm-svn: 340016
 2018-08-17 12:35:44 +00:00