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5 Commits

Author SHA1 Message Date
Sanjay Patel 27b613382c [DAG] add splat vector support for 'xor' in SimplifyDemandedBits 
This allows forming more 'not' ops, so we get improvements for ISAs that have and-not.

Follow-up to:
https://reviews.llvm.org/rL300725


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300763 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-04-19 21:23:09 +00:00
Sanjay Patel f60747136e [PowerPC] add test and auto-generate checks; NFC 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300700 91177308-0d34-0410-b5e6-96231b3b80d8
 2017-04-19 14:58:09 +00:00
Hal Finkel b7a37e9680 [PowerPC] hasAndNotCompare should return true 
As Sanjay suggested when he added the hook, PPC should return true from
hasAndNotCompare. We have an efficient negated 'and' on PPC (which can feed a
compare).

Fixes PR27203.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@280457 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-09-02 02:58:25 +00:00
Ehsan Amiri 38caf19333 Adding -verify-machineinstrs option to PowerPC tests 
Currently we have a number of tests that fail with -verify-machineinstrs.
To detect this cases earlier we add the option to the testcases with the
exception of tests that will currently fail with this option. PR 27456 keeps
track of this failures.

No code review, as discussed with Hal Finkel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@277624 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-08-03 18:17:35 +00:00
Sanjay Patel 788bace9c5 [ppc] add tests to show potential andc optimization 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@266261 91177308-0d34-0410-b5e6-96231b3b80d8
 2016-04-13 23:23:30 +00:00