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Author SHA1 Message Date
Eric Christopher cee313d288 Revert "Temporarily Revert "Add basic loop fusion pass."" 
The reversion apparently deleted the test/Transforms directory.

Will be re-reverting again.

llvm-svn: 358552
 2019-04-17 04:52:47 +00:00
Eric Christopher a863435128 Temporarily Revert "Add basic loop fusion pass." 
As it's causing some bot failures (and per request from kbarton).

This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda.

llvm-svn: 358546
 2019-04-17 02:12:23 +00:00
Alexandros Lamprineas 52457d33b2 [InstCombine, ARM, AArch64] Convert table lookup to shuffle vector 
Turning a table lookup intrinsic into a shuffle vector instruction
can be beneficial. If the mask used for the lookup is the constant
vector {7,6,5,4,3,2,1,0}, then the back-end generates byte reverse
instructions instead.

Differential Revision: https://reviews.llvm.org/D46133

llvm-svn: 333550
 2018-05-30 14:38:50 +00:00
Chad Rosier 274d72faad [InstCombine] Combine XOR and AES instructions on ARM/ARM64. 
The ARM/ARM64 AESE and AESD instructions have a builtin XOR as the first step in
the instruction. Therefore, if the AES key is zero and the AES data was
previously XORed, it can be combined into a single instruction.

Differential Revision: https://reviews.llvm.org/D47239
Patch by Michael Brase!

llvm-svn: 333193
 2018-05-24 15:26:42 +00:00
Justin Bogner 3c6fbad388 InstCombine: Move tests that use target intrinsics into subdirectories 
Tests with target intrinsics are inherently target specific, so it
doesn't actually make sense to run them if we've excluded their
target.

llvm-svn: 302979
 2017-05-13 05:39:46 +00:00