12c9e0cf1c
Explain what "constant" means here.
...
llvm-svn: 117053
2010-10-21 19:45:09 +00:00
104f1812ce
Update comments.
...
llvm-svn: 117048
2010-10-21 19:01:22 +00:00
1b85604130
Memdep says that an instruction clobbers itself
...
when it means there is no specific clobber instruction.
llvm-svn: 116960
2010-10-20 22:37:41 +00:00
a2ab75bc8d
Factor out the main aliasing check into a separate function.
...
llvm-svn: 116958
2010-10-20 22:11:14 +00:00
2549d0cf64
Fix comments; the type graph is currently a tree, not a DAG.
...
llvm-svn: 116954
2010-10-20 22:02:58 +00:00
23c8341c3d
Add RegionPass support.
...
A RegionPass is executed like a LoopPass but on the regions detected by the
RegionInfo pass instead of the loops detected by the LoopInfo pass.
llvm-svn: 116905
2010-10-20 01:54:44 +00:00
48b4568718
Fix CMake build
...
llvm-svn: 116903
2010-10-20 01:36:56 +00:00
da85ed8541
Move NoAA out of BasicAliasAnalysis.cpp into its own file, now that
...
it doesn't have a special relationship with BasicAliasAnalysis
anymore.
llvm-svn: 116876
2010-10-19 23:09:08 +00:00
f372cf869b
Reapply r116831 and r116839, converting AliasAnalysis to use
...
uint64_t, plus fixes for places I missed before.
llvm-svn: 116875
2010-10-19 22:54:46 +00:00
b4aa503501
Revert r116831 and r116839, which are breaking selfhost builds.
...
llvm-svn: 116858
2010-10-19 21:06:16 +00:00
f4c5fe73be
Change AliasAnalysis and its clients to use uint64_t instead of unsigned
...
for representing object sizes, for consistency with other parts of LLVM.
llvm-svn: 116831
2010-10-19 18:00:02 +00:00
6c18d1aac0
Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which
...
must be called in the pass's constructor. This function uses static dependency declarations to recursively initialize
the pass's dependencies.
Clients that only create passes through the createFooPass() APIs will require no changes. Clients that want to use the
CommandLine options for passes will need to manually call the appropriate initialization functions in PassInitialization.h
before parsing commandline arguments.
I have tested this with all standard configurations of clang and llvm-gcc on Darwin. It is possible that there are problems
with the static dependencies that will only be visible with non-standard options. If you encounter any crash in pass
registration/creation, please send the testcase to me directly.
llvm-svn: 116820
2010-10-19 17:21:58 +00:00
14fe8cf238
Consistently use AliasAnalysis::UnknownSize instead of hardcoding ~0u.
...
llvm-svn: 116815
2010-10-19 17:06:23 +00:00
e4a82e2f21
Make the representation of AliasSets explicitly differentiate
...
between "not known yet" and "known no tbaa info" so that it
can merge them properly.
llvm-svn: 116767
2010-10-18 23:31:47 +00:00
408beac597
Don't pass the raw invalid pointer used to represent conflicting
...
TBAA information to AliasAnalysis.
llvm-svn: 116751
2010-10-18 21:28:00 +00:00
71af9db0e8
Make AliasSetTracker TBAA-aware, enabling TBAA-enabled LICM.
...
llvm-svn: 116743
2010-10-18 20:44:50 +00:00
f3702452c8
Fix BasicAA to pass TBAAInfo through to the chained analysis.
...
llvm-svn: 116730
2010-10-18 18:45:11 +00:00
33fcde9b9c
Make TypeBasedAliasAnalysis default to doing nothing, with a command-line
...
option to enable it.
llvm-svn: 116722
2010-10-18 18:17:47 +00:00
f0a3bed6d6
Use chaining in TypeBasedAliasAnalysis::pointsToConstantMemory.
...
llvm-svn: 116721
2010-10-18 18:10:31 +00:00
02538ac4d3
Make BasicAliasAnalysis a normal AliasAnalysis implementation which
...
does normal initialization and normal chaining. Change the default
AliasAnalysis implementation to NoAlias.
Update StandardCompileOpts.h and friends to explicitly request
BasicAliasAnalysis.
Update tests to explicitly request -basicaa.
llvm-svn: 116720
2010-10-18 18:04:47 +00:00
1dc34b48dd
Eliminate some calls to Value::getNameStr.
...
llvm-svn: 116670
2010-10-16 11:28:23 +00:00
31a01ee3cb
Tolerate a null parent pointer.
...
llvm-svn: 116533
2010-10-14 22:55:57 +00:00
698661c741
add uadd_ov/usub_ov to apint, consolidate constant folding
...
logic to use the new APInt methods. Among other things this
implements rdar://8501501 - llvm.smul.with.overflow.i32 should constant fold
which comes from "clang -ftrapv", originally brought to my attention from PR8221.
llvm-svn: 116457
2010-10-14 00:05:07 +00:00
c266a36625
Analysis groups need to initialize their default implementations.
...
llvm-svn: 116441
2010-10-13 21:49:58 +00:00
4b0986b6c1
Add Region::isTopLevelRegion().
...
llvm-svn: 116402
2010-10-13 11:02:44 +00:00
4c71c117d1
RegionInfo: Fix trivial error that slipped in last minute.
...
llvm-svn: 116400
2010-10-13 08:00:53 +00:00
fe92a9384e
RegionInfo: Update RegionInfo after a BB was split.
...
llvm-svn: 116398
2010-10-13 05:54:13 +00:00
a8677226ab
RegioInfo: Add getExpandedRegion().
...
getExpandedRegion() enables us to create non canonical regions. Those regions
can be used to define the largerst region, that fullfills a certain property.
llvm-svn: 116397
2010-10-13 05:54:11 +00:00
648594c920
RegionInfo: Allow to update exit and entry of a region.
...
llvm-svn: 116396
2010-10-13 05:54:10 +00:00
bf984fd78e
RegionInfo: Enhance addSubregion.
...
llvm-svn: 116395
2010-10-13 05:54:09 +00:00
8352ce5f8d
RegionInfo: Allow to set the parent region of a basic block.
...
llvm-svn: 116394
2010-10-13 05:54:07 +00:00
e910b9d9cd
RegionInfo: Free the RegionNodes in cache.
...
Contributed by: ether
llvm-svn: 116380
2010-10-13 00:07:59 +00:00
8ac477ffb5
Begin adding static dependence information to passes, which will allow us to
...
perform initialization without static constructors AND without explicit initialization
by the client. For the moment, passes are required to initialize both their
(potential) dependencies and any passes they preserve. I hope to be able to relax
the latter requirement in the future.
llvm-svn: 116334
2010-10-12 19:48:12 +00:00
a8d3a7f93d
Support AA chaining.
...
llvm-svn: 116264
2010-10-11 23:39:34 +00:00
b8d7efe785
Now using a variant of the existing inlining heuristics to decide whether to create a given specialization of a function in PartialSpecialization. If the total performance bonus across all callsites passing the same constant exceeds the specialization cost, we create the specialization.
...
llvm-svn: 116158
2010-10-09 22:06:36 +00:00
99463ca8cf
Start separating out code metrics into code size metrics and code performance metrics. Partial Specialization will apply the former to function specializations, and the latter to all callsites that can use a specialization, in order to decide whether to create a specialization
...
llvm-svn: 116057
2010-10-08 13:57:31 +00:00
df7a4f2515
Now with fewer extraneous semicolons!
...
llvm-svn: 115996
2010-10-07 22:25:06 +00:00
98eb3ec6c5
Add an implementation of the initialization routine for IPA.
...
llvm-svn: 115947
2010-10-07 18:31:27 +00:00
6875c2ea26
Add initialization routines for Analysis and IPA.
...
llvm-svn: 115946
2010-10-07 18:31:00 +00:00
82d38df40c
Fix a warning when building with clang++.
...
llvm-svn: 115924
2010-10-07 17:04:18 +00:00
5e19bfcde3
Move the pass initialization helper functions into the llvm namespace, and add
...
a header declaring them all. This is also where we will declare per-library pass-set
initializer functions down the road.
llvm-svn: 115900
2010-10-07 04:13:08 +00:00
af08ad4350
Appease the clang self-host buildbot by providing a correct instantiation.
...
llvm-svn: 115857
2010-10-06 22:23:20 +00:00
ad8134f03b
Hide analysis group registration behind a macro, just like pass registration.
...
llvm-svn: 115835
2010-10-06 21:02:27 +00:00
9a33ec24eb
Add support for DW_TAG_unspecified_parameters.
...
llvm-svn: 115833
2010-10-06 20:50:40 +00:00
8e4c19ac44
Don't add the operand count to SCEV uniquing data; FoldingSetNodeID
...
already knows its own length, so this is redundant.
llvm-svn: 115521
2010-10-04 17:24:08 +00:00
bea08d1c85
Let FE mark a variable as artificial variable.
...
llvm-svn: 115102
2010-09-29 23:07:21 +00:00
95ae73c394
Generalize DISubprogram element to encode various flags instead of just one boolean for isArtificial.
...
This is a backword compatible change.
llvm-svn: 115084
2010-09-29 21:04:46 +00:00
923a8cf356
Remove PointerTracking from cmakelists …
...
llvm-svn: 115076
2010-09-29 19:39:50 +00:00
af995f0ee5
remove PointerTracking from mainline, Edwin is going to move it out to ClamAV
...
for LLVM 2.9
llvm-svn: 115062
2010-09-29 18:43:27 +00:00
b4b12535e8
Removed a bunch of unnecessary target_link_libraries.
...
llvm-svn: 114999
2010-09-28 22:39:14 +00:00
7a55481fa4
Provide an interface to let FEs anchor debug info for types.
...
llvm-svn: 114969
2010-09-28 18:08:20 +00:00
1083573796
Don't try to constant fold libm functions with non-finite arguments.
...
Usually we wouldn't do this anyway because llvm_fenv_testexcept would return an
exception, but we have seen some cases where neither errno nor fenv detect an
exception on arm-linux.
llvm-svn: 114893
2010-09-27 21:29:20 +00:00
2348393cf5
Teach memdep about TBAA tags.
...
llvm-svn: 114588
2010-09-22 21:41:02 +00:00
4b57204e80
Simplify code.
...
llvm-svn: 114444
2010-09-21 16:41:29 +00:00
4021d906f1
Make CreateComplexVariable independent of SmallVector.
...
llvm-svn: 114439
2010-09-21 16:00:03 +00:00
4a253e5ac8
Don't include <fenv.h> now that we have llvm/System/FEnv.h.
...
llvm-svn: 114219
2010-09-17 21:47:03 +00:00
b48f904602
Attempt to support platforms which don't have fenv.h.
...
llvm-svn: 114196
2010-09-17 20:06:27 +00:00
18fa17cf3d
Fix the folding of floating-point math library calls, like sin(infinity),
...
so that it detects errors on platforms where libm doesn't set errno.
It's still subject to host libm details though.
llvm-svn: 114148
2010-09-17 01:38:06 +00:00
2fa59799d9
Add an #include of raw_ostream.h. Previously, this only compiled
...
because it was using Twine.h's declaration of operator<<(const Twine &).
llvm-svn: 114141
2010-09-17 00:33:43 +00:00
d61e3833a3
Update CMake build.
...
llvm-svn: 114128
2010-09-16 23:06:18 +00:00
f4925061af
Rename a variable to avoid a declaration conflict.
...
llvm-svn: 114126
2010-09-16 22:50:09 +00:00
ee74402fe6
Add a pass which prints out all the memdep dependencies.
...
llvm-svn: 114121
2010-09-16 22:08:32 +00:00
c33cdcfd80
Revert r114097, adding back in the assertion against replacing an Instruction by itself. Now that CorrelatedValuePropagation is
...
more careful not to call SimplifyInstructionsInBlock() on an unreachable block, the issue has been fixed at a higher level. Add
a big warning to SimplifyInstructionsInBlock() to hopefully prevent this in the future.
llvm-svn: 114117
2010-09-16 20:51:41 +00:00
140296f5c0
It is possible, under specific circumstances involving ptrtoint ConstantExpr's, for LVI to end up trying to merge
...
a Constant into a ConstantRange. Handle this conservatively for now, rather than asserting. The testcase is
more complex that I would like, but the manifestation of the problem is sensitive to iteration orders and the state of the
LVI cache, and I have not been able to reproduce it with manually constructed or simplified cases.
Fixes PR8162.
llvm-svn: 114103
2010-09-16 18:28:33 +00:00
94532cb297
Fix PR8161, in which an unreachable loop causes recursive instruction simplification to try
...
to replace an instruction with itself. Add a predicate to the simplifier to prevent this case.
llvm-svn: 114097
2010-09-16 17:42:36 +00:00
ab3a128582
PR7959: Handle negative scales in GEPs correctly in BasicAA for non-64-bit
...
targets.
llvm-svn: 114015
2010-09-15 20:08:03 +00:00
e0386dbef1
Convert TBAA to use the new TBAATag field of AliasAnalysis::Location.
...
llvm-svn: 113892
2010-09-14 23:28:12 +00:00
41f14cf3e9
Remove the experimental AliasAnalysis::getDependency interface, which
...
isn't a good level of abstraction for memdep. Instead, generalize
AliasAnalysis::alias and related interfaces with a new Location
class for describing a memory location. For now, this is the same
Pointer and Size as before, plus an additional field for a TBAA tag.
Also, introduce a fixed MD_tbaa metadata tag kind.
llvm-svn: 113858
2010-09-14 21:25:10 +00:00
93c9b2ea93
Revert "CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally."
...
This reverts commit r113632
Conflicts:
cmake/modules/AddLLVM.cmake
llvm-svn: 113819
2010-09-13 23:59:48 +00:00
8c35fb0739
Teach InstructionSimplify to fold (A & B) & A -> A & B and (A | B) | A -> A | B.
...
Reassociate does this but it doesn't catch all cases (e.g. if the operands are i1).
llvm-svn: 113651
2010-09-10 22:39:55 +00:00
dc38d36ccb
CMake: Get rid of LLVMLibDeps.cmake and export the libraries normally.
...
llvm-svn: 113632
2010-09-10 21:14:25 +00:00
04cf3fd761
What the loop unroller cares about, rather than just not unrolling loops with calls, is
...
not unrolling loops that contain calls that would be better off getting inlined. This mostly
comes up when an interleaved devirtualization pass has devirtualized a call which the inliner
will inline on a future pass. Thus, rather than blocking all loops containing calls, add
a metric for "inline candidate calls" and block loops containing those instead.
llvm-svn: 113535
2010-09-09 20:32:23 +00:00
1c5be00ec7
Extend the getDependence query with support for PHI translation.
...
llvm-svn: 113521
2010-09-09 18:37:31 +00:00
a08318acb2
Refactor code-size reduction estimation methods out of InlineCostAnalyzer and into CodeMetrics. They
...
don't use any InlineCostAnalyzer state, and are useful for other clients who don't necessarily want to use
all of InlineCostAnalyzer's logic, some of which is fairly inlining-specific.
No intended functionality change.
llvm-svn: 113499
2010-09-09 16:56:42 +00:00
64d842ec72
Add a new experimental generalized dependence query interface to
...
AliasAnalysis, and some code for implementing the new query on top of
existing implementations by making standard alias and getModRefInfo
queries.
llvm-svn: 113329
2010-09-08 01:32:20 +00:00
a74fa15f32
Clean up some of the PassRegistry implementation, and pImpl-ize it to reduce #include clutter
...
and exposing internal details.
llvm-svn: 113252
2010-09-07 19:16:25 +00:00
ad48e01eef
Add completely hokey binary-and and binary-or operations to ConstantRange and
...
teach LazyValueInfo to use them.
llvm-svn: 113196
2010-09-07 05:39:02 +00:00
a58edd1df3
cleanup some of the lifetime/invariant marker stuff, add a big fixme.
...
llvm-svn: 113144
2010-09-06 03:58:04 +00:00
e34c835bde
speed up -gvn 3.4% on the testcase in PR7023
...
llvm-svn: 113135
2010-09-06 01:26:29 +00:00
da24b9a49a
pull a simple method out of LICM into a new
...
Loop::hasLoopInvariantOperands method. Remove
a useless and confusing Loop::isLoopInvariant(Instruction)
method, which didn't do what you thought it did.
No functionality change.
llvm-svn: 113133
2010-09-06 01:05:37 +00:00
72d283c826
fix PR8063, a crash in globalopt in the malloc analysis code.
...
llvm-svn: 113109
2010-09-05 17:20:46 +00:00
0963048185
dead method.
...
llvm-svn: 113077
2010-09-04 18:19:16 +00:00
65b48b5dfc
zap dead code.
...
llvm-svn: 113073
2010-09-04 18:12:00 +00:00
47bec3cb57
Disable the asserts that check that normalization is perfectly
...
invertible. ScalarEvolution's folding routines don't always succeed
in canonicalizing equal expressions to a single canonical form, and
this can cause these asserts to fail, even though there's no actual
correctness problem. This fixes PR8066.
llvm-svn: 113021
2010-09-03 22:12:56 +00:00
c725462245
Add support for simplifying a load from a computed value to a load from a global when it
...
is provable that they're equivalent. This fixes PR4855.
llvm-svn: 112994
2010-09-03 19:08:37 +00:00
19199cce55
stop forcing a noop AssemblyAnnotationWriter to silence #uses
...
comments, these don't happen anymore.
llvm-svn: 112901
2010-09-02 23:03:10 +00:00
2912df072d
Remove incorrect and poorly tested code for trying to reason about values on default edges of
...
switches. Just return the conservatively correct answer.
llvm-svn: 112876
2010-09-02 22:16:52 +00:00
a8c896b704
Fix a bug in LazyValueInfo that CorrelatedValuePropagation exposed: In the LVI lattice, undef and the full set ConstantRange should not
...
be treated as equivalent.
llvm-svn: 112843
2010-09-02 18:23:58 +00:00
110ed64fbb
Revert 112442 and 112440 until the compile time problems introduced
...
by 112440 are resolved.
llvm-svn: 112692
2010-09-01 01:45:53 +00:00
47308d5da3
Reapply r112432, now that the real problem is addressed.
...
llvm-svn: 112667
2010-08-31 22:53:17 +00:00
f01a5eed1e
Reapply r112433, now that the real problem is addressed.
...
llvm-svn: 112666
2010-08-31 22:52:12 +00:00
aabfc52790
Revert r110916. This patch is buggy because the code inside the
...
inner loop doesn't update all the variables in the outer loop.
llvm-svn: 112665
2010-08-31 22:50:31 +00:00
90f29bcd90
Revert r112432. It appears to be exposing a problem in the emacs build.
...
llvm-svn: 112638
2010-08-31 20:58:44 +00:00
444c24a9f0
Speculatively revert r112433.
...
llvm-svn: 112608
2010-08-31 17:56:47 +00:00
9517943d11
It is possible to try to merge a not-constant with a constantrage, when dealing with ptrtoint ConstantExpr's.
...
Unfortunately, the only testcase I have for this is huge and doesn't reduce well because the error is
sensitive to iteration-order issues, since the problem only occurs when merging values in a particular order.
llvm-svn: 112489
2010-08-30 17:03:45 +00:00
8548c892a8
Don't print two "0x" prefixes. Use a raw_ostream overload instead of llvm::format.
...
llvm-svn: 112479
2010-08-30 14:46:53 +00:00
f58382ed87
two changes: 1) make AliasSet hold the list of call sites with an
...
assertingvh so we get a violent explosion if the pointer dangles.
2) Fix AliasSetTracker::deleteValue to remove call sites with
by-pointer comparisons instead of by-alias queries. Using
findAliasSetForCallSite can cause alias sets to get merged
when they shouldn't, and can also miss alias sets when the
call is readonly.
#2 fixes PR6889, which only repros with a .c file :(
llvm-svn: 112452
2010-08-29 18:42:23 +00:00
3a08ed7904
Make IVUsers iterative instead of recursive.
...
This has the side effect of reversing the order of most of
IVUser's results.
llvm-svn: 112442
2010-08-29 16:40:03 +00:00
d1da5cdfee
Restructure the {A,+,B}<L> * {C,+,D}<L> folding so that it folds
...
all applicable addrecs before recursing on getMulExpr, instead of
recursing on getMulExpr for each one.
llvm-svn: 112433
2010-08-29 15:16:58 +00:00
3e6fc18943
Batch up subtracts along with adds, when analyzing long chains of
...
operations.
llvm-svn: 112432
2010-08-29 15:10:06 +00:00
7712d2900d
Micro-optimize GroupByComplexity.
...
llvm-svn: 112431
2010-08-29 15:07:13 +00:00
0f2de01355
Hold AddRec->getLoop() in a variable, to make the Mul code more consistent
...
with the Add code.
llvm-svn: 112430
2010-08-29 14:55:19 +00:00
028c18158a
Rename a variable, for consistency.
...
llvm-svn: 112429
2010-08-29 14:53:34 +00:00
28a84d4ba1
Use iterators instead of indices.
...
llvm-svn: 112428
2010-08-29 14:52:02 +00:00
dc8070ed6d
when merging two alias sets, the result set is volatile if either
...
of the sets is volatile. We were dropping the volatile bit of the
merged in set, leading (luckily) to assertions in cases like
PR7535. I cannot produce a testcase that repros with opt, but this
is obviously correct.
llvm-svn: 112402
2010-08-29 04:14:47 +00:00
eef6b19dcb
more cleanup
...
llvm-svn: 112401
2010-08-29 04:13:43 +00:00
afb7074f18
clean this up
...
llvm-svn: 112400
2010-08-29 04:06:55 +00:00
fe22f1d3cc
Fix an index calculation thinko.
...
llvm-svn: 112337
2010-08-28 00:39:27 +00:00
38f6b7fe3b
Improve the precision of getConstant().
...
llvm-svn: 112323
2010-08-27 23:29:38 +00:00
15871f23e3
When merging adjacent operands, scan ahead and merge all equal
...
adjacent operands at once, instead of just two at a time.
llvm-svn: 112299
2010-08-27 21:39:59 +00:00
c866bf4fec
Make the {A,+,B}<L> + {C,+,D}<L> --> Other + {A+C,+,B+D}<L>
...
transformation collect all the addrecs with the same loop
add combine them at once rather than starting everything over
at the first chance.
llvm-svn: 112290
2010-08-27 20:45:56 +00:00
9bad2fb378
Switch ScalarEvolution's main Value*->SCEV* map from std::map
...
to DenseMap.
llvm-svn: 112281
2010-08-27 18:55:03 +00:00
6ebbd92380
Use LVI to eliminate conditional branches where we've tested a related condition previously. Update tests for this change.
...
This fixes PR5652.
llvm-svn: 112270
2010-08-27 17:12:29 +00:00
2706567c5c
Optimize SCEVComplexityCompare. Use a 3-way return instead of a 2-way
...
return to avoid needing two calls to test for equivalence, and sort
addrecs by their degree before examining their operands.
llvm-svn: 112267
2010-08-27 15:26:01 +00:00
4afea9e3c6
In the default address space, any GEP off of null results in a trap value if you try to load it. Thus,
...
any load in the default address space that completes implies that the base value that it GEP'd from
was not null.
llvm-svn: 112015
2010-08-25 01:16:47 +00:00
a10000006e
NULL loads are only invalid in the default address space.
...
llvm-svn: 111972
2010-08-24 22:00:55 +00:00
b695c83de9
Add support for inferring values for the default cases of switches.
...
llvm-svn: 111971
2010-08-24 21:59:42 +00:00
da34de1599
Add support for inferring that a load from a pointer implies that it is not null.
...
llvm-svn: 111959
2010-08-24 20:47:29 +00:00
c62f704576
Don't assume that all constants with integer types are ConstantInts.
...
llvm-svn: 111906
2010-08-24 07:55:44 +00:00
dd719f701d
Let FE use derived types for DW_TAG_friend.
...
Patch by Alexander Herz!
llvm-svn: 111861
2010-08-23 23:16:25 +00:00
a8652674e0
Handle qualified constants that are directly folded by FE.
...
PR 7920.
llvm-svn: 111820
2010-08-23 18:25:56 +00:00
d31d82d75c
Now that PassInfo and Pass::ID have been separated, move the rest of the passes over to the new registration API.
...
llvm-svn: 111815
2010-08-23 17:52:01 +00:00
5fc55dc3cf
CreateTemporaryType doesn't needs its Context argument.
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llvm-svn: 111687
2010-08-20 22:39:47 +00:00
16a5d98c3a
Introduce a new temporary MDNode concept. Temporary MDNodes are
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not part of the IR, are not uniqued, and may be safely RAUW'd.
This replaces a variety of alternate mechanisms for achieving
the same effect.
llvm-svn: 111681
2010-08-20 22:02:26 +00:00
a931605647
Convert DbgInfoPrinter to use errs() instead of outs().
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llvm-svn: 111659
2010-08-20 18:03:05 +00:00
f71c521fb7
Revert r111199; it breaks -debug-pass=Structure output.
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llvm-svn: 111500
2010-08-19 01:29:07 +00:00
3decde9305
refix PR1143 by making basicaa analyze zexts of indices aggresively,
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which I broke with a recent patch.
llvm-svn: 111452
2010-08-18 23:09:49 +00:00
26403acef7
GetLinearExpression is only called when TD is non-null, pass as
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a reference instead of pointer.
llvm-svn: 111445
2010-08-18 22:52:09 +00:00
1b9c38796e
rework GEP decomposition to make a new VariableGEPIndex struct instead of
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using a pair. This tidies up the code a bit. While setting things up, add
a (currently unused) field to keep track of how the value is extended.
llvm-svn: 111444
2010-08-18 22:47:56 +00:00
9f7500f57b
move gep decomposition out of ValueTracking into BasicAA. The form of
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decomposition that it is doing is very basicaa specific and is only used
by basicaa.
Now with less tree breakingness.
llvm-svn: 111433
2010-08-18 22:07:29 +00:00
80d19f0905
Use ConstantRange to propagate information through value definitions.
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llvm-svn: 111425
2010-08-18 21:11:37 +00:00
fbeeb130d8
Revert r111375, "move gep decomposition out of ValueTracking into BasicAA. The
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form of", it doesn't pass tests.
llvm-svn: 111385
2010-08-18 18:43:08 +00:00
208636fa33
Inform LazyValueInfo whenever a block is deleted, to avoid dangling pointer issues.
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llvm-svn: 111382
2010-08-18 18:39:01 +00:00
54fe883203
move gep decomposition out of ValueTracking into BasicAA. The form of
...
decomposition that it is doing is very basicaa specific and is only used
by basicaa.
llvm-svn: 111375
2010-08-18 18:22:17 +00:00
a33edcb56c
fix PR7589: In brief:
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gep P, (zext x) != gep P, (sext x)
DecomposeGEPExpression was getting this wrong, confusing
basicaa.
llvm-svn: 111352
2010-08-18 04:28:19 +00:00
ed2b005842
Tweak IVUsers' concept of "interesting" to exclude add recurrences
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where the step value is an induction variable from an outer loop, to
avoid trouble trying to re-expand such expressions. This effectively
hides such expressions from indvars and lsr, which prevents them
from getting into trouble.
llvm-svn: 111317
2010-08-17 22:50:37 +00:00
fa7d44687f
Fix another iterator invalidation that caused a *really* nasty miscompilation in 403.gcc.
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llvm-svn: 111210
2010-08-16 23:42:33 +00:00
55cd6aadc9
Make dumpPassStructure be a PMDataManager abstraction, rather than
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a Pass abstraction, since that's the level it's actually used at.
Rename Pass' dumpPassStructure to dumpPass.
This eliminates an awkward use of getAsPass() to convert a PMDataManager*
into a Pass* just to permit a dumpPassStructure call.
llvm-svn: 111199
2010-08-16 22:45:12 +00:00
797a1dbb1c
To create a copy of a SmallVector with an element removed from the
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middle, copy the elements in two groups, rather than copying all the
elements and then doing an erase on the middle of the result. These
are SmallVectors, so we shouldn't expect to hit dynamic allocation
in the common case.
llvm-svn: 111151
2010-08-16 16:57:24 +00:00
0d0cc18af5
Tidy whitespace.
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llvm-svn: 111147
2010-08-16 16:34:09 +00:00
c29eeaecec
Add a comment.
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llvm-svn: 111145
2010-08-16 16:31:39 +00:00
7eac4961d7
Use const_iterator in a few places.
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llvm-svn: 111144
2010-08-16 16:30:01 +00:00
74c61503b1
Use iterators instead of indices in a few more places.
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llvm-svn: 111143
2010-08-16 16:27:53 +00:00
f29618236e
Micro-optimize SCEVConstant comparison.
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llvm-svn: 111142
2010-08-16 16:25:35 +00:00
3688ea5c7d
Move SCEVNAryExpr's virtual member functions out of line, and convert
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them to iterators.
llvm-svn: 111140
2010-08-16 16:21:27 +00:00
d6925bbe0d
Use iterators instead of indices in simple cases.
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llvm-svn: 111138
2010-08-16 16:16:11 +00:00
b6c773ec2e
Avoid gratuitous inefficiency in ifndef NDEBUG code.
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llvm-svn: 111137
2010-08-16 16:13:54 +00:00
e5fb1036e6
Make one getAddExpr call when analyzing a+b+c+d+e+... instead of one
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for each add instruction. Ditto for Mul.
llvm-svn: 111136
2010-08-16 16:03:49 +00:00
b094b39111
Delete an unused function.
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llvm-svn: 111135
2010-08-16 15:57:14 +00:00
fb83b043eb
Revert r111058, the lint check for indirectbr successors that aren't
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address-taken. This can occur normally, if the code which took the
address got DCEd.
llvm-svn: 111121
2010-08-16 14:39:19 +00:00
Dan Gohman