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61 Commits

Author SHA1 Message Date
Owen Anderson
55f1c09e31 Push LLVMContexts through the IntegerType APIs. 
llvm-svn: 78948
 2009-08-13 21:58:54 +00:00
Owen Anderson
5a1acd9912 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
Owen Anderson
b292b8ce70 Move more code back to 2.5 APIs. 
llvm-svn: 77635
 2009-07-30 23:03:37 +00:00
Dan Gohman
43d19d61d4 Make AliasAnalysis and related classes use 
getAnalysisIfAvailable<TargetData>().

llvm-svn: 77028
 2009-07-25 00:48:42 +00:00
Dan Gohman
85a791ef7a AliasAnalysis wants sizes in address-units, not bits. 
llvm-svn: 77009
 2009-07-24 23:01:30 +00:00
Owen Anderson
47db941fd3 Get rid of the Pass+Context magic. 
llvm-svn: 76702
 2009-07-22 00:24:57 +00:00
Torok Edwin
fbcc663cbf llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable. 
This adds location info for all llvm_unreachable calls (which is a macro now) in
!NDEBUG builds.
In NDEBUG builds location info and the message is off (it only prints
"UREACHABLE executed").

llvm-svn: 75640
 2009-07-14 16:55:14 +00:00
Torok Edwin
ccb29cd290 Convert more assert(0)+abort() -> LLVM_UNREACHABLE, 
and abort()/exit() -> llvm_report_error().

llvm-svn: 75363
 2009-07-11 13:10:19 +00:00
Owen Anderson
1e5f00e7a7 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
e70b637033 More LLVMContext-ification. 
llvm-svn: 74807
 2009-07-05 22:41:43 +00:00
Dan Gohman
48f8222293 Re-apply 70645, converting ScalarEvolution to use 
CallbackVH, with fixes. allUsesReplacedWith need to
walk the def-use chains and invalidate all users of a
value that is replaced. SCEVs of users need to be
recalcualted even if the new value is equivalent. Also,
make forgetLoopPHIs walk def-use chains, since any
SCEV that depends on a PHI should be recalculated when
more information about that PHI becomes available.

llvm-svn: 70927
 2009-05-04 22:30:44 +00:00
Chris Lattner
351134ba93 Factor loop backedge finding out of CodeGenPrepare into a new 
FindFunctionBackedges function.

llvm-svn: 70819
 2009-05-04 02:25:58 +00:00
Dan Gohman
5036695c32 Revert r70645 for now; it's causing a variety of regressions. 
llvm-svn: 70661
 2009-05-03 05:46:20 +00:00
Dan Gohman
e9a38d16fe Convert ScalarEvolution to use CallbackVH for its internal map. This 
makes ScalarEvolution::deleteValueFromRecords, and it's code that
subtly needed to be called before ReplaceAllUsesWith, unnecessary.

It also makes ValueDeletionListener unnecessary.

llvm-svn: 70645
 2009-05-02 21:19:20 +00:00
Dan Gohman
ff08995589 Previously, RecursivelyDeleteDeadInstructions provided an option 
of returning a list of pointers to Values that are deleted. This was
unsafe, because the pointers in the list are, by nature of what
RecursivelyDeleteDeadInstructions does, always dangling. Replace this
with a simple callback mechanism. This may eventually be removed if
all clients can reasonably be expected to use CallbackVH.

Use this to factor out the dead-phi-cycle-elimination code from LSR
utility function, and generalize it to use the
RecursivelyDeleteTriviallyDeadInstructions utility function.

This makes LSR more aggressive about eliminating dead PHI cycles;
adjust tests to either be less trivial or to simply expect fewer
instructions.

llvm-svn: 70636
 2009-05-02 18:29:22 +00:00
Dale Johannesen
d71c20081c Skip ptr-to-ptr bitcasts when counting in another case. 
llvm-svn: 66000
 2009-03-04 02:06:53 +00:00
Dale Johannesen
09c3e8ec00 Instruction counters must skip the bitcasts that 
feed into llvm.dbg.declare nodes, as well as
the debug directives themselves.

llvm-svn: 65976
 2009-03-03 22:36:47 +00:00
Dale Johannesen
77456b7ab4 When removing a store to an alloca that has only one 
use, check also for the case where it has two uses,
the other being a llvm.dbg.declare.  This is needed so
debug info doesn't affect codegen.

llvm-svn: 65970
 2009-03-03 21:26:39 +00:00
Dan Gohman
92b551bc2b Fix a bunch of Doxygen syntax issues. Escape special characters, 
and put @file directives on their own comment line.

llvm-svn: 65920
 2009-03-03 02:55:14 +00:00
Dale Johannesen
e1bb2f86f9 When sinking an insn in InstCombine bring its debug 
info with it.
Don't count debug info insns against the scan maximum
in FindAvailableLoadedValue (lest they affect codegen).

llvm-svn: 65910
 2009-03-03 01:09:07 +00:00
Devang Patel
e288082644 While folding unconditional return move DbgRegionEndInst into the predecessor, instead of removing it. This fixes following tests from llvmgcc42 testsuite. 
gcc.c-torture/execute/20000605-3.c
gcc.c-torture/execute/20020619-1.c
gcc.c-torture/execute/20030920-1.c
gcc.c-torture/execute/loop-ivopts-1.c

llvm-svn: 65353
 2009-02-24 00:05:16 +00:00
Devang Patel
316705027b If llvm.dbg.region.end is disappearing then remove corresponding llvm.dbg.func.start also. 
llvm-svn: 64278
 2009-02-11 01:29:06 +00:00
Duncan Sands
5a913d61e3 Rename getAnalysisToUpdate to getAnalysisIfAvailable. 
llvm-svn: 63198
 2009-01-28 13:14:17 +00:00
Chris Lattner
dc3f6f2c12 Factor some code into a new FoldSingleEntryPHINodes method. 
llvm-svn: 60501
 2008-12-03 19:44:02 +00:00
Chris Lattner
37e0136fef third time is the charm. 
llvm-svn: 60469
 2008-12-03 07:45:15 +00:00
Chris Lattner
c04a1ffa9a fix assertion. 
llvm-svn: 60468
 2008-12-03 07:43:05 +00:00
Chris Lattner
7eb270ed03 Rename DeleteBlockIfDead to DeleteDeadBlock and make it 
unconditionally delete the block.  All likely clients will
do the checking anyway.

llvm-svn: 60464
 2008-12-03 06:40:52 +00:00
Chris Lattner
bcc904a67c Factor some code out of SimplifyCFG, forming a new 
DeleteBlockIfDead method.

llvm-svn: 60463
 2008-12-03 06:37:44 +00:00
Chris Lattner
e0d019def6 switch InstCombine::visitLoadInst to use 
FindAvailableLoadedValue

llvm-svn: 60169
 2008-11-27 08:56:30 +00:00
Chris Lattner
c6ae56d23f enhance FindAvailableLoadedValue to make use of AliasAnalysis 
if it has it.

llvm-svn: 60167
 2008-11-27 08:18:12 +00:00
Chris Lattner
72f16e70f0 move FindAvailableLoadedValue from JumpThreading to Transforms/Utils. 
llvm-svn: 60166
 2008-11-27 08:10:05 +00:00
Devang Patel
f33f8a8606 Fix unused variable warnings. 
llvm-svn: 58651
 2008-11-03 23:14:09 +00:00
Owen Anderson
cb4f156b6b SplitBlock should only attempt to update LoopInfo if it is actually being used. 
llvm-svn: 56994
 2008-10-03 06:55:35 +00:00
Devang Patel
0f7a3507cf Fix simplifycfg crash in handing block merge. 
llvm-svn: 55971
 2008-09-09 01:06:56 +00:00
Owen Anderson
1468bec06e Add some checks that got lost in the shuffle. This fixes 464.h264ref. 
llvm-svn: 53760
 2008-07-18 17:46:41 +00:00
Owen Anderson
27405efdc0 Make MergeBlockIntoPredecessor more aggressive when the same successor appears 
more than once.

llvm-svn: 53731
 2008-07-17 19:42:29 +00:00
Owen Anderson
c062381c7b Factor MergeBlockIntoPredecessor out into BasicBlockUtils. 
llvm-svn: 53705
 2008-07-17 00:01:40 +00:00
Nick Lewycky
4d43d3c72c Remove 'unwinds to' support from mainline. This patch undoes r47802 r47989 
r48047 r48084 r48085 r48086 r48088 r48096 r48099 r48109 and r48123.

llvm-svn: 50265
 2008-04-25 16:53:59 +00:00
Chris Lattner
a5b11705b6 Move SplitBlockPredecessors out of loopsimplify into BasicBlockUtils.h 
as a global helper function.  At the same type, switch it from taking
a vector of predecessors to an arbitrary sequential input.  This allows
us to switch LoopSimplify to use a SmallVector for various temporary
vectors that it passed into SplitBlockPredecessors.

llvm-svn: 50020
 2008-04-21 01:28:02 +00:00
Gabor Greif
e9ecc68d8f API changes for class Use size reduction, wave 1. 
Specifically, introduction of XXX::Create methods
for Users that have a potentially variable number of
Uses.

llvm-svn: 49277
 2008-04-06 20:25:17 +00:00
Nick Lewycky
cc24104703 Two things. Preserve the unwind_to when splitting a BB. 
Add the ability to remove just one instance of a BB from a phi node. This fixes
the compile error in the tree now.

llvm-svn: 48085
 2008-03-09 05:04:48 +00:00
Chris Lattner
f3ebc3f3d2 Remove attribution from file headers, per discussion on llvmdev. 
llvm-svn: 45418
 2007-12-29 20:36:04 +00:00
Owen Anderson
b0dd27ee91 Make LoopInfoBase more generic, in preparation for having MachineLoopInfo. This involves a small interface change. 
llvm-svn: 44348
 2007-11-27 03:43:35 +00:00
Devang Patel
186e0d8b0a After a basic block is split into two parts, 
second part dominates all the blocks dominated
by original basic block. And first part dominates
second part.

llvm-svn: 40035
 2007-07-19 02:29:24 +00:00
Devang Patel
d7767cc2a7 Add SplitEdge and SplitBlock utility routines. 
llvm-svn: 37952
 2007-07-06 21:39:20 +00:00
Chris Lattner
8dd4cae4f8 simplify code by using Value::takeName 
llvm-svn: 34177
 2007-02-11 01:37:51 +00:00
Reid Spencer
2452c94df4 Fix a doxygen problem and break lines at 80 columns 
llvm-svn: 28395
 2006-05-19 19:09:46 +00:00
Misha Brukman
b1c9317bb4 Remove trailing whitespace 
llvm-svn: 21427
 2005-04-21 23:48:37 +00:00
Chris Lattner
7ceb081f3f Improve doxygen documentation, patch contributed by Evan Jones! 
llvm-svn: 21393
 2005-04-21 16:04:49 +00:00
Chris Lattner
6d0a24c608 second argument to Value::setName is now gone. 
llvm-svn: 20463
 2005-03-05 19:05:20 +00:00