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121 Commits

Author SHA1 Message Date
Gabor Greif
ed5dd5198a use getArgOperand (corrected by CallInst::ArgOffset) instead of getOperand 
llvm-svn: 107273
 2010-06-30 09:19:23 +00:00
Dale Johannesen
b1fc776fca The hasMemory argument is irrelevant to how the argument 
for an "i" constraint should get lowered; PR 6309.  While
this argument was passed around a lot, this is the only
place it was used, so it goes away from a lot of other
places.

llvm-svn: 106893
 2010-06-25 21:55:36 +00:00
Gabor Greif
1d1526999b use ArgOperand API 
llvm-svn: 106707
 2010-06-24 00:44:01 +00:00
Eric Christopher
e78496e5f1 Revert 101465, it broke internal OpenGL testing. 
Probably the best way to know that all getOperand() calls have been handled
is to replace that API instead of updating.

llvm-svn: 101579
 2010-04-16 23:37:20 +00:00
Gabor Greif
e7d6812008 reapply r101434 
with a fix for self-hosting

rotate CallInst operands, i.e. move callee to the back
of the operand array

the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary

llvm-svn: 101465
 2010-04-16 15:33:14 +00:00
Gabor Greif
cd116e8c6a back out r101423 and r101397, they break llvm-gcc self-host on darwin10 
llvm-svn: 101434
 2010-04-16 01:16:20 +00:00
Gabor Greif
257aae9752 shift intrinsic operand 
llvm-svn: 101423
 2010-04-16 00:06:45 +00:00
Dale Johannesen
03396f06c0 Fix a nasty dangling-pointer heisenbug that could 
generate wrong code pretty much anywhere AFAICT.
A case that hits the bug reproducibly is impossible,
but the situation was like this:
Addr = ...
Store -> Addr
Addr2 = GEP , 0, 0
Store -> Addr2
Handling the first store, the code changed replaced Addr
with a sunkaddr and deleted Addr, but not its table
entry.  Code in OptimizedBlock replaced Addr2 with a
bitcast; if that happened to reuse the memory of Addr,
the old table entry was erroneously found when handling
the second store.

llvm-svn: 100044
 2010-03-31 20:37:15 +00:00
Gabor Greif
df5013e4d8 rename use_const_iterator to const_use_iterator for consistency's sake 
llvm-svn: 99564
 2010-03-25 23:06:16 +00:00
Benjamin Kramer
0592752a53 Factor checked library call optimization into a common helper class and use it 
to unify the almost identical code in CodeGenPrepare and InstCombineCalls.

llvm-svn: 98338
 2010-03-12 09:27:41 +00:00
Benjamin Kramer
846fefb000 stpcpy is so similar to strcpy, it doesn't deserve a complete copy of the __strcpy_chk -> strcpy code. 
llvm-svn: 98284
 2010-03-11 20:45:13 +00:00
Eric Christopher
017a0a06d8 Lower stpcpy_chk when possible. 
llvm-svn: 98274
 2010-03-11 19:24:34 +00:00
Eric Christopher
53a9bc6e22 Do some final lowering in CodeGenPrepare of _chk calls similar to 
that in InstCombineCalls.

More call lowering needed.

llvm-svn: 98228
 2010-03-11 02:41:03 +00:00
Duncan Sands
1b33dd3c83 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.

llvm-svn: 96344
 2010-02-16 11:11:14 +00:00
Chris Lattner
23368e55d7 remove dead code. 
llvm-svn: 96109
 2010-02-13 19:07:06 +00:00
Chris Lattner
0874dc6dab Split some code out to a helper function (FindReusablePredBB) 
and add a doxygen comment.

Cache the phi entry to avoid doing tons of 
PHINode::getBasicBlockIndex calls in the common case.

On my insane testcase from re2c, this speeds up CGP from
617.4s to 7.9s (78x).

llvm-svn: 96083
 2010-02-13 05:35:08 +00:00
Chris Lattner
9be0b06335 speed up CGP a bit by scanning predecessors through phi operands 
instead of with pred_begin/end.

llvm-svn: 96078
 2010-02-13 04:04:42 +00:00
Dan Gohman
96cad72d2d Implement releaseMemory in CodeGenPrepare and free the BackEdges 
container data. This prevents it from holding onto dangling
pointers and potentially behaving unpredictably.

llvm-svn: 95409
 2010-02-05 19:24:11 +00:00
Dan Gohman
4ca37472ec When doing address-mode sinking, expand the base register first, rather 
than the scaled register. This makes it more likely that subsequent
AddrModeMatcher queries will match the new address the same way as the
old, instead of accidentally matching what had been the base register
as the new scaled register, and then failing to match the scaled register.
This fixes some problems with address-mode sinking multiple muls into a
block, which will be a lot more common with some upcoming
LoopStrengthReduction changes.

llvm-svn: 93935
 2010-01-19 22:45:06 +00:00
David Greene
937fdd9ec0 Change errs() to dbgs(). 
llvm-svn: 92611
 2010-01-05 01:27:11 +00:00
Evan Cheng
18e334195d Revert 91280-91283, 91286-91289, 91291, 91293, 91295-91296. It apparently introduced a non-deterministic behavior in the optimizer somewhere. 
llvm-svn: 91598
 2009-12-17 09:39:49 +00:00
Nick Lewycky
5a00cea348 Remove unnecessary #include "llvm/LLVMContext.h". 
llvm-svn: 90836
 2009-12-08 05:45:41 +00:00
Bob Wilson
c717c5e7ae Fix a comment typo. 
llvm-svn: 90487
 2009-12-03 21:47:07 +00:00
Chris Lattner
43591a021a llvm::SplitEdge should refuse to split an edge from an indirectbr. 
Fix CodeGenPrepare to not try to split edges from indirectbr.

llvm-svn: 85690
 2009-10-31 22:04:43 +00:00
Dan Gohman
ef1f246d88 Move zext and sext casts fed by loads into the same block as the 
load, to help SelectionDAG fold them into the loads, unless
conditions are unfavorable.

llvm-svn: 84271
 2009-10-16 20:59:35 +00:00
Andreas Neustifter
3c9b4c4c75 Preserve ProfileInfo during CodeGenPrepare. 
llvm-svn: 82034
 2009-09-16 09:26:52 +00:00
Chris Lattner
5f54c5bd1c eliminate VISIBILITY_HIDDEN from Transforms/Scalar. PR4861 
llvm-svn: 80766
 2009-09-02 06:11:42 +00:00
Dan Gohman
4d20610e6e Eliminate the unused Context argument on one of the ICmpInst and FCmpInst 
constructors.

llvm-svn: 80049
 2009-08-25 23:17:54 +00:00
Chris Lattner
01dae858b6 eliminate the "Value" printing methods that print to a std::ostream. 
This required converting a bunch of stuff off DOUT and other cleanups.

llvm-svn: 79819
 2009-08-23 04:37:46 +00:00
Owen Anderson
9df206d02d Push LLVMContexts through the IntegerType APIs. 
llvm-svn: 78948
 2009-08-13 21:58:54 +00:00
Owen Anderson
dbf9a912fb Add contexts to some of the MVT APIs. No functionality change yet, just the infrastructure work needed to get the contexts to where they need to be first. 
llvm-svn: 78759
 2009-08-12 00:36:31 +00:00
Owen Anderson
b4bce99769 Rename MVT to EVT, in preparation for splitting SimpleValueType out into its own struct type. 
llvm-svn: 78610
 2009-08-10 22:56:29 +00:00
Owen Anderson
1dc40e205b Move a few more APIs back to 2.5 forms. The only remaining ones left to change back are 
metadata related, which I'm waiting on to avoid conflicting with Devang.

llvm-svn: 77721
 2009-07-31 20:28:14 +00:00
Dan Gohman
fdf1a11a27 Convert a few more uses of llvm/Support/Streams.h to raw_ostream. 
llvm-svn: 77033
 2009-07-25 01:13:51 +00:00
Owen Anderson
cc33e89571 Revert the ConstantInt constructors back to their 2.5 forms where possible, thanks to contexts-on-types. More to come. 
llvm-svn: 77011
 2009-07-24 23:12:02 +00:00
Owen Anderson
cc287b28c9 Get rid of the Pass+Context magic. 
llvm-svn: 76702
 2009-07-22 00:24:57 +00:00
Chris Lattner
31022c9412 use ExpandInlineAsm on TargetLowering instead of TargetAsmInfo. 
llvm-svn: 76442
 2009-07-20 17:52:52 +00:00
Owen Anderson
49226b1075 This started as a small change, I swear. Unfortunately, lots of things call the [I|F]CmpInst constructors. Who knew!? 
llvm-svn: 75200
 2009-07-09 23:48:35 +00:00
Owen Anderson
7fb95ff5dd Convert the first batch of passes to use LLVMContext. 
llvm-svn: 74748
 2009-07-03 00:17:18 +00:00
Dan Gohman
111f127d23 Fix old-style type names in comments. 
llvm-svn: 73362
 2009-06-14 23:30:43 +00:00
Dan Gohman
f6e6588203 Fix CodeGenPrepare's address-mode sinking to handle unusual 
addresses, involving Base values which do not have Pointer type.
This fixes PR4297.

llvm-svn: 72739
 2009-06-02 21:29:13 +00:00
Chris Lattner
b07d558841 Factor loop backedge finding out of CodeGenPrepare into a new 
FindFunctionBackedges function.

llvm-svn: 70819
 2009-05-04 02:25:58 +00:00
Chris Lattner
e872752d66 remove empty section 
llvm-svn: 68485
 2009-04-07 02:55:53 +00:00
Dale Johannesen
9fd8bb432f One more place to skip debug info. 
llvm-svn: 67811
 2009-03-27 01:13:37 +00:00
Dale Johannesen
03cedf1d8b Skip debug info one more place. (This one gets 
called from llc, not opt, but it's an IR level
optimization nevertheless.)

llvm-svn: 67724
 2009-03-26 01:15:07 +00:00
Evan Cheng
cda58e565f Fix PR3784: If the source of a phi comes from a bb ended with an invoke, make sure the copy is inserted before the try range (unless it's used as an input to the invoke, then insert it after the last use), not at the end of the bb. 
Also re-apply r66140 which was disabled as a workaround.

llvm-svn: 66976
 2009-03-13 22:59:14 +00:00
Duncan Sands
968939fca2 Revert commit 66140 since it caused several failures 
in the Ada testcase.  Reverting this only covers up
the real problem, which is a nasty conceptual difficulty
in the phi elimination pass: when eliminating phi nodes
in landing pads, the register copies need to come before
the invoke, not at the end of the basic block which is
too late...  See PR3784.

llvm-svn: 66826
 2009-03-12 21:13:42 +00:00
Evan Cheng
24c138a1cd Do not split edges to EH landing pads. It will cause code size explosion. 
llvm-svn: 66140
 2009-03-05 06:31:26 +00:00
Evan Cheng
d8aad94754 Factor address mode matcher out of codegen prepare to make it available to other passes, e.g. loop strength reduction. 
llvm-svn: 65134
 2009-02-20 18:24:38 +00:00
Dan Gohman
f01c6af944 In CodeGenPrepare's debug output, use WriteAsOperand instead of 
printing getName(), so that unnamed values are printed correctly.

llvm-svn: 64468
 2009-02-13 17:45:12 +00:00