Eli Friedman
36ef5fd140
Update instcombine for atomic load/store.
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llvm-svn: 137664
2011-08-15 22:09:40 +00:00
Frits van Bommel
775ac35cf1
Shorten some expressions by using ArrayRef::slice().
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llvm-svn: 135910
2011-07-25 15:13:01 +00:00
Jay Foad
6513dac6e2
Convert GetElementPtrInst to use ArrayRef.
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llvm-svn: 135904
2011-07-25 09:48:08 +00:00
Chris Lattner
e1fe7061ce
land David Blaikie's patch to de-constify Type, with a few tweaks.
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llvm-svn: 135375
2011-07-18 04:54:35 +00:00
Eli Friedman
6937c422a0
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.
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llvm-svn: 132167
2011-05-27 00:19:40 +00:00
Duncan Sands
4c4f3dbea6
Stop trying to have instcombine preserve LCSSA form: this was not
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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.
llvm-svn: 130301
2011-04-27 10:55:12 +00:00
Frits van Bommel
09c24968b1
Rename a misleadingly-named variable.
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llvm-svn: 129644
2011-04-16 14:32:34 +00:00
Jay Foad
e80e7f1de5
Fix bug when checking phi operands in InstCombiner::visitPHINode(),
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found by code inspection.
llvm-svn: 129641
2011-04-16 14:17:37 +00:00
Chris Lattner
0304b82f80
Fix a ton of comment typos found by codespell. Patch by
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Luis Felipe Strano Moraes!
llvm-svn: 129558
2011-04-15 05:18:47 +00:00
Jay Foad
53632b7c03
Remove PHINode::reserveOperandSpace(). Instead, add a parameter to
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PHINode::Create() giving the (known or expected) number of operands.
llvm-svn: 128537
2011-03-30 11:28:46 +00:00
Jay Foad
dc5a008237
(Almost) always call reserveOperandSpace() on newly created PHINodes.
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llvm-svn: 128535
2011-03-30 11:19:20 +00:00
Jay Foad
bfb0312e40
Make more use of PHINode::getNumIncomingValues().
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llvm-svn: 128406
2011-03-28 13:03:10 +00:00
Chris Lattner
f9501b79f9
have instcombine preserve nsw/nuw/exact when sinking
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common operations through a phi.
llvm-svn: 125790
2011-02-17 23:01:49 +00:00
Chris Lattner
fd397180f3
fix typo
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llvm-svn: 125787
2011-02-17 22:32:54 +00:00
Chris Lattner
fc8ee641a2
fix instcombine merging GEPs through a PHI to only make the
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result inbounds if all of the inputs are inbounds.
llvm-svn: 125785
2011-02-17 22:21:26 +00:00
Duncan Sands
617030ad18
Teach InstructionSimplify about phi nodes. I chose to have it simply
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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).
llvm-svn: 119043
2010-11-14 13:30:18 +00:00
Gabor Greif
04d1ca9e95
cache result of operator*
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llvm-svn: 108147
2010-07-12 14:15:58 +00:00
Chris Lattner
789121d6e2
fix PR6512, a case where instcombine would incorrectly merge loads
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from different addr spaces.
llvm-svn: 97813
2010-03-05 18:53:28 +00:00
Duncan Sands
1b33dd3c83
There are two ways of checking for a given type, for example isa<PointerType>(T)
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and T->isPointerTy(). Convert most instances of the first form to the second form.
Requested by Chris.
llvm-svn: 96344
2010-02-16 11:11:14 +00:00
Benjamin Kramer
cd6b749245
Add newline at EOF.
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llvm-svn: 92727
2010-01-05 13:32:48 +00:00
Chris Lattner
23ff3ce8eb
split PHI node stuff out to InstCombinePHI.cpp
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llvm-svn: 92682
2010-01-05 05:31:55 +00:00
