Sanjay Patel 28b1842d00 [InstCombine] add (ashr (shl i32 X, 31), 31), 1 --> and (not X), 1 ... This is another step towards favoring 'not' ops over random 'xor' in IR: https://bugs.llvm.org/show_bug.cgi?id=32706 This transformation may have occurred in longer IR sequences using computeKnownBits, but that could be much more expensive to calculate. As the scalar result shows, we do not currently favor 'not' in all cases. The 'not' created by the transform is transformed again (unnecessarily). Vectors don't have this problem because vectors are (wrongly) excluded from several other combines. llvm-svn: 302659		2017-05-10 13:56:52 +00:00
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Coroutines	[IR] Abstract away ArgNo+1 attribute indexing as much as possible	2017-05-03 18:17:31 +00:00
Hello	Add auto-exporting of symbols from tools so that plugins work on Windows	2016-05-26 11:16:43 +00:00
InstCombine	[InstCombine] add (ashr (shl i32 X, 31), 31), 1 --> and (not X), 1	2017-05-10 13:56:52 +00:00
Instrumentation	Use explicit false instead of casted nullptr. NFC.	2017-05-10 13:24:17 +00:00
IPO	[ProfileSummary] Make getProfileCount a non-static member function.	2017-05-09 23:21:10 +00:00
ObjCARC	[IR] Abstract away ArgNo+1 attribute indexing as much as possible	2017-05-03 18:17:31 +00:00
Scalar	Revert r301950: SpeculativeExecution: Stop using whitelist for costs	2017-05-10 12:30:07 +00:00
Utils	Add a late IR expansion pass for the experimental reduction intrinsics.	2017-05-10 09:42:49 +00:00
Vectorize	[AArch64] Consider widening instructions in cost calculations	2017-05-09 20:18:12 +00:00
CMakeLists.txt	[coroutines] Part 3 of N: Adding Boilerplate for Coroutine Passes	2016-07-28 21:04:31 +00:00
LLVMBuild.txt	[coroutines] Part 3 of N: Adding Boilerplate for Coroutine Passes	2016-07-28 21:04:31 +00:00