0398607714
Don't attempt the PRE inline asm calls, since we don't value number them yet. Fixes PR7835.
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llvm-svn: 110489
2010-08-07 00:20:35 +00:00
a7aed18624
Reapply r110396, with fixes to appease the Linux buildbot gods.
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llvm-svn: 110460
2010-08-06 18:33:48 +00:00
5a2849e166
Fix uninitialized variable warning.
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Also move 'default' case next to a real case to help compiler optimize in
non-Debug builds.
No functionality change.
llvm-svn: 110435
2010-08-06 07:43:46 +00:00
bda59bd247
Revert r110396 to fix buildbots.
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llvm-svn: 110410
2010-08-06 00:23:35 +00:00
755aceb5d0
Don't use PassInfo* as a type identifier for passes. Instead, use the address of the static
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ID member as the sole unique type identifier. Clean up APIs related to this change.
llvm-svn: 110396
2010-08-05 23:42:04 +00:00
4674dd6cf5
Give JumpThreading+LVI a long-form cl::opt so that it's easier to toggle the default.
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llvm-svn: 110384
2010-08-05 22:11:31 +00:00
9f2bca02d7
Experiments show that we can safely increase our unrolling threshold without unduly impacting code size, particularly
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since unrolling is not enabled at -Os.
llvm-svn: 110233
2010-08-04 18:32:46 +00:00
ba81fc16a5
Fix whitespace.
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llvm-svn: 110223
2010-08-04 17:43:57 +00:00
839c972102
Fix a comment.
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llvm-svn: 110181
2010-08-04 01:16:35 +00:00
ddaaf40d24
Add an atomic lowering pass
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llvm-svn: 110113
2010-08-03 16:19:16 +00:00
40b31ad3ee
Prefix `next' iterator operation with `llvm::'.
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Fixes potential ambiguity problems on VS 2010.
Patch by nobled!
llvm-svn: 110029
2010-08-02 06:00:15 +00:00
299c6dfcbf
Add missing newline to debug statement.
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llvm-svn: 109886
2010-07-30 20:27:01 +00:00
62f0aac99d
simplify by using CallSite constructors; virtually eliminates CallSite::get from the tree
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llvm-svn: 109687
2010-07-28 22:50:26 +00:00
0a970698da
use Value* constructor of CallSite to create potentially improper site, and test that
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llvm-svn: 109581
2010-07-28 14:28:18 +00:00
f159085414
recommit simplification (r109502, backed out r109509); seems to innocent
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llvm-svn: 109510
2010-07-27 16:44:23 +00:00
5f91b7cf3e
back out this too to restore the bots
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llvm-svn: 109509
2010-07-27 15:56:07 +00:00
7527b2ed5c
simplify
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llvm-svn: 109502
2010-07-27 13:31:22 +00:00
aa7f66ba67
Add an initial implementation of LazyValueInfo updating for JumpThreading. Disabled for now.
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llvm-svn: 109424
2010-07-26 18:48:03 +00:00
0141c13b22
Remove LCSSA's bogus dependence on LoopSimplify and LoopSimplify's bogus
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dependence on DominanceFrontier. Instead, add an explicit DominanceFrontier
pass in StandardPasses.h to ensure that it gets scheduled at the right
time.
Declare that loop unrolling preserves ScalarEvolution, and shuffle some
getAnalysisUsages.
This eliminates one LoopSimplify and one LCCSA run in the standard
compile opts sequence.
llvm-svn: 109413
2010-07-26 18:11:16 +00:00
65b257c9d2
Use DominatorTree::properlyDominates instead of dominates with an
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explicit inequality check.
llvm-svn: 109401
2010-07-26 17:37:36 +00:00
31f73ef210
A block dominates itself, by definition.
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llvm-svn: 109400
2010-07-26 17:35:32 +00:00
dde79d8f1a
mass elimination of reliance on automatic iterator dereferencing
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llvm-svn: 109103
2010-07-22 13:36:47 +00:00
3e44ea1917
undo 80 column trespassing I caused
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llvm-svn: 109092
2010-07-22 10:37:47 +00:00
a57b97e7e7
Fix batch of converting RegisterPass<> to INTIALIZE_PASS().
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llvm-svn: 109045
2010-07-21 22:09:45 +00:00
12725c7d46
Remember that the induction variable is always a PHINode and
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use getIncomingValueForBlock instead of
LoopInfo::getCanonicalInductionVariableIncrement.
llvm-svn: 108865
2010-07-20 17:18:52 +00:00
efd7f9c360
Reorder the contents of various getAnalysisUsage functions, eliminating
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a redundant loopsimplify run from the default -O2 sequence.
llvm-svn: 108539
2010-07-16 17:58:45 +00:00
6d673953e3
eliminate CallInst::ArgOffset
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llvm-svn: 108522
2010-07-16 09:38:02 +00:00
1415208292
Don't merge uses when they are targetting fixup sites with
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different widths. In a use with a narrower fixup, formulae
may be wider than the fixup, in which case the high bits
aren't necessarily meaningful, so it isn't safe to reuse
them for uses with wider fixups.
This fixes PR7618, though the testcase is too large for a
reasonable regression test, since it heavily dependes on
hitting LSR's heuristics in a certain way.
llvm-svn: 108455
2010-07-15 20:24:58 +00:00
a1501b9c50
Use dbgs() instead of errs() in a DEBUG.
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llvm-svn: 108453
2010-07-15 20:12:42 +00:00
4afd412d6b
Watch out for a constant offset cancelling out a base register, forming
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a zero. This situation arrises in Fortran code with induction variables
that start at 1 instead of 0. This fixes PR7651.
llvm-svn: 108424
2010-07-15 15:14:45 +00:00
f88a284579
Handle the case of a tail recursion in which the tail call is followed
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by a return that returns a constant, while elsewhere in the function
another return instruction returns a different constant. This is a
special case of accumulator recursion, so just generalize the existing
logic a bit.
llvm-svn: 108241
2010-07-13 15:41:41 +00:00
a5fa885d47
cache results of operator*
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llvm-svn: 108142
2010-07-12 14:10:24 +00:00
782f62412f
cache dereferenced iterators
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llvm-svn: 108138
2010-07-12 12:03:02 +00:00
433b975fe2
recommit r108131 (hich has been backed out in r108135) with a fix
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llvm-svn: 108137
2010-07-12 12:02:10 +00:00
f9610827ce
back out r108131 (of TailDuplication.cpp) for now, it causes a buildbot failure
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llvm-svn: 108135
2010-07-12 11:32:39 +00:00
2a464d7308
cache dereferenced iterators
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llvm-svn: 108131
2010-07-12 10:36:48 +00:00
41b4a6b36a
Convert some tab stops into spaces.
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llvm-svn: 108130
2010-07-12 08:16:59 +00:00
bbc25ff5cc
if jump threading is able to infer interesting values on both
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the LHS and RHS of an and/or instruction, don't multiply add
known predecessor values. This fixes the crash on testcase
from PR7498
llvm-svn: 108114
2010-07-12 00:47:34 +00:00
82b21c086e
The accumulator tail recursion transform claims to work for any associative
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operation, but the way it's implemented requires the operation to also be
commutative. So add a check for commutativity (and tweak the corresponding
comments). This makes no difference in practice since every associative
LLVM instruction is also commutative! Here's an example to show the need
for commutativity: the accum_recursion.ll testcase calculates the factorial
function. Before the transformation the result of a call is
((((1*1)*2)*3)...)*x
while afterwards it is
(((1*x)*(x-1))...*2)*1
which clearly requires both associativity and commutativity of * to be equal
to the original.
llvm-svn: 108056
2010-07-10 20:31:42 +00:00
e82532a1c5
cache result of operator*
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llvm-svn: 107976
2010-07-09 15:40:10 +00:00
d323f5e161
cache result of operator* (found by inspection)
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llvm-svn: 107971
2010-07-09 14:48:08 +00:00
b0d56ffc85
cache result of operator*
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llvm-svn: 107969
2010-07-09 14:36:49 +00:00
efa3c824cc
Fix the second half of PR7437: scalarrepl wasn't preserving
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address spaces when SRoA'ing memcpy's.
llvm-svn: 107846
2010-07-08 00:27:05 +00:00
dace239949
Detabify this file.
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llvm-svn: 107637
2010-07-06 03:53:43 +00:00
832282e061
Don't claim to preserve AliasAnalysis. First, this is doesn't actually
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have any effect, and second, deleting stores can potentially invalidate
an AliasAnalysis, and there's currently no notification for this.
llvm-svn: 107496
2010-07-02 18:43:05 +00:00
74470192d7
use ArgOperand API
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llvm-svn: 107278
2010-06-30 12:42:43 +00:00
743b3fd196
use getArgOperand (corrected by CallInst::ArgOffset) instead of getOperand
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llvm-svn: 107273
2010-06-30 09:19:23 +00:00
f628ecd15f
use getNumArgOperands instead of getNumOperands
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llvm-svn: 107272
2010-06-30 09:17:53 +00:00
fe252e6fa0
use getArgOperand instead of getOperand
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llvm-svn: 107271
2010-06-30 09:16:16 +00:00
8ae3095286
use getArgOperand instead of getOperand
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llvm-svn: 107270
2010-06-30 09:15:28 +00:00
Owen Anderson