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21 Commits

Author SHA1 Message Date
Eli Friedman
cc4a0435b7 Update instcombine for atomic load/store. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137664 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-15 22:09:40 +00:00
Frits van Bommel
2eb40f6d86 Shorten some expressions by using ArrayRef::slice(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135910 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-25 15:13:01 +00:00
Jay Foad
a9203109f4 Convert GetElementPtrInst to use ArrayRef. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135904 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-25 09:48:08 +00:00
Chris Lattner
db125cfaf5 land David Blaikie's patch to de-constify Type, with a few tweaks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135375 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-07-18 04:54:35 +00:00
Eli Friedman
a311c34d2a Final step of instcombine debuginfo; switch a couple more places over to InsertNewInstWith, and use setDebugLoc for the cases which can't be easily handled by the automated mechanisms. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132167 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-27 00:19:40 +00:00
Duncan Sands
089a246333 Stop trying to have instcombine preserve LCSSA form: this was not 
effective in avoiding recomputation of LCSSA form; the widespread
use of instsimplify (which looks through phi nodes) means it was
not preserving LCSSA form anyway; and instcombine is no longer
scheduled in the middle of the loop passes so this doesn't matter
anymore.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130301 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-27 10:55:12 +00:00
Frits van Bommel
86f72a8002 Rename a misleadingly-named variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129644 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-16 14:32:34 +00:00
Jay Foad
4130278fbe Fix bug when checking phi operands in InstCombiner::visitPHINode(), 
found by code inspection.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129641 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-16 14:17:37 +00:00
Chris Lattner
7a2bdde0a0 Fix a ton of comment typos found by codespell. Patch by 
Luis Felipe Strano Moraes!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129558 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-15 05:18:47 +00:00
Jay Foad
3ecfc861b4 Remove PHINode::reserveOperandSpace(). Instead, add a parameter to 
PHINode::Create() giving the (known or expected) number of operands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128537 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-30 11:28:46 +00:00
Jay Foad
d8b4fb4aab (Almost) always call reserveOperandSpace() on newly created PHINodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128535 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-30 11:19:20 +00:00
Jay Foad
fd4a5497b6 Make more use of PHINode::getNumIncomingValues(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128406 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-28 13:03:10 +00:00
Chris Lattner
c8cb8ef9c2 have instcombine preserve nsw/nuw/exact when sinking 
common operations through a phi. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125790 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-17 23:01:49 +00:00
Chris Lattner
1521e91fc4 fix typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125787 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-17 22:32:54 +00:00
Chris Lattner
4bd8217af3 fix instcombine merging GEPs through a PHI to only make the 
result inbounds if all of the inputs are inbounds.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125785 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-17 22:21:26 +00:00
Duncan Sands
cd6636c737 Teach InstructionSimplify about phi nodes. I chose to have it simply 
offload the work to hasConstantValue rather than do something more
complicated (such handling mutually recursive phis) because (1) it is
not clear it is worth it; and (2) if it is worth it, maybe such logic
would be better placed in hasConstantValue.  Adjust some GVN tests
which are now cleaned up much further (eg: all phi nodes are removed).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119043 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-14 13:30:18 +00:00
Gabor Greif
40119ceeec cache result of operator* 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108147 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-12 14:15:58 +00:00
Chris Lattner
4c5fb1a311 fix PR6512, a case where instcombine would incorrectly merge loads 
from different addr spaces.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97813 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-05 18:53:28 +00:00
Duncan Sands
1df9859c40 There are two ways of checking for a given type, for example isa<PointerType>(T) 
and T->isPointerTy().  Convert most instances of the first form to the second form.
Requested by Chris.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96344 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-16 11:11:14 +00:00
Benjamin Kramer
eade002094 Add newline at EOF. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92727 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 13:32:48 +00:00
Chris Lattner
f54e729629 split PHI node stuff out to InstCombinePHI.cpp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92682 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-05 05:31:55 +00:00