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Commit Graph

276 Commits

Author SHA1 Message Date
Owen Anderson
93ccaf5c60 Move more code back to 2.5 APIs.
llvm-svn: 77635
2009-07-30 23:03:37 +00:00
Owen Anderson
0ce2151b36 Move ConstantExpr to 2.5 API.
llvm-svn: 77494
2009-07-29 18:55:55 +00:00
Daniel Dunbar
75a66c519b Eliminate some uses of DOUT, cerr, and getNameStart().
llvm-svn: 77145
2009-07-26 07:49:05 +00:00
Daniel Dunbar
8496064116 More migration to raw_ostream, the water has dried up around the iostream hole.
- Some clients which used DOUT have moved to DEBUG. We are deprecating the
   "magic" DOUT behavior which avoided calling printing functions when the
   statement was disabled. In addition to being unnecessary magic, it had the
   downside of leaving code in -Asserts builds, and of hiding potentially
   unnecessary computations.

llvm-svn: 77019
2009-07-25 00:23:56 +00:00
Owen Anderson
cc287b28c9 Get rid of the Pass+Context magic.
llvm-svn: 76702
2009-07-22 00:24:57 +00:00
Owen Anderson
7f61f8dc30 Rename getConstantInt{True|False} to get{True|False} at Chris' behest.
llvm-svn: 76598
2009-07-21 18:03:38 +00:00
Owen Anderson
21d2d69727 Move the ConstantInt uniquing table into LLVMContextImpl. This exposed a number of issues in
our current context-passing stuff, which is also fixed here

llvm-svn: 76089
2009-07-16 18:04:31 +00:00
Torok Edwin
f955a6ef49 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
Owen Anderson
1e5155161a Move more functionality over to LLVMContext.
llvm-svn: 75497
2009-07-13 20:58:05 +00:00
Torok Edwin
ae8a3ff177 assert(0) -> LLVM_UNREACHABLE.
Make llvm_unreachable take an optional string, thus moving the cerr<< out of
line.
LLVM_UNREACHABLE is now a simple wrapper that makes the message go away for
NDEBUG builds.

llvm-svn: 75379
2009-07-11 20:10:48 +00:00
Torok Edwin
9b41a5faf2 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
121f736d9c "LLVMContext* " --> "LLVMContext *"
llvm-svn: 74878
2009-07-06 23:00:19 +00:00
Owen Anderson
5f268720e9 Finish LLVMContext-ing lib/Analysis. This required pushing LLVMContext's through the ValueTracking API.
llvm-svn: 74873
2009-07-06 22:37:39 +00:00
Owen Anderson
ad3229d281 Thread LLVMContext through the constant folding APIs, which touches a lot of files.
llvm-svn: 74844
2009-07-06 18:42:36 +00:00
Owen Anderson
a8ce571a68 Even more passes being LLVMContext'd.
llvm-svn: 74781
2009-07-03 19:42:02 +00:00
Nick Lewycky
1a54547335 Don't crash on multiple return value with no obvious inserted value.
Fixes PR4314.

llvm-svn: 73007
2009-06-06 23:13:08 +00:00
Nick Lewycky
3dd0d690f3 Use Operands.data() instead of &Operands[0] where Operands is a potentially
empty SmallVector.

llvm-svn: 72512
2009-05-28 04:08:10 +00:00
Duncan Sands
3c115770e7 Factorize out a concept - no functionality change.
llvm-svn: 67454
2009-03-21 21:27:31 +00:00
Duncan Sands
926d062a48 Don't load values out of global constants with weak
linkage: the value may be replaced with something
different at link time.  (Frontends that want to
allow values to be loaded out of weak constants can
give their constants weak_odr linkage).

llvm-svn: 67407
2009-03-20 21:53:29 +00:00
Rafael Espindola
0aba6c9435 Add the private linkage.
llvm-svn: 62279
2009-01-15 20:18:42 +00:00
Chris Lattner
fa0c0e19f6 Fix PR3325, a miscompilation of invokes by IPSCCP. Patch by Jay Foad!
llvm-svn: 62244
2009-01-14 21:01:16 +00:00
Devang Patel
b6d277da6c Fix unused variable warnings.
llvm-svn: 59778
2008-11-21 01:52:59 +00:00
Nick Lewycky
f393d56364 Replace explicit loop with utility function.
llvm-svn: 58593
2008-11-03 03:49:14 +00:00
Dan Gohman
e1f9be27bc Tidy up several unbeseeming casts from pointer to intptr_t.
llvm-svn: 55779
2008-09-04 17:05:41 +00:00
Chris Lattner
9f10b57760 improve encapsulation of the BBExecutable set.
llvm-svn: 55271
2008-08-23 23:39:31 +00:00
Chris Lattner
15f29cad83 Switch an assortment of maps, sets and vectors to more efficient versions,
patch contributed by m-s!

llvm-svn: 55270
2008-08-23 23:36:38 +00:00
Bill Wendling
bebfe7b7fc Temporarily revert r54792. It's causing an ICE during bootstrapping.
llvm-svn: 54804
2008-08-14 23:05:24 +00:00
Devang Patel
8aa62f7dfa Use DenseMap. Patch by Pratik Solanki.
llvm-svn: 54792
2008-08-14 21:31:10 +00:00
Dan Gohman
374d9328b7 Fix SCCP's handling of struct value loads and stores. SCCP doesn't
track individual leaf values in such cases, so it needs to treat
struct values as normal values in this case.

llvm-svn: 54760
2008-08-13 21:22:48 +00:00
Dan Gohman
6564581be0 Enable first-class aggregates support.
Remove the GetResultInst instruction. It is still accepted in LLVM assembly
and bitcode, where it is now auto-upgraded to ExtractValueInst. Also, remove
support for return instructions with multiple values. These are auto-upgraded
to use InsertValueInst instructions.

The IRBuilder still accepts multiple-value returns, and auto-upgrades them
to InsertValueInst instructions.

llvm-svn: 53941
2008-07-23 00:34:11 +00:00
Dan Gohman
fcc6f11fc3 Tidy up some commments and use the getAggregateOperand and
getInsertedValueOperand accessors. Thanks Matthijs!

llvm-svn: 52543
2008-06-20 16:41:17 +00:00
Dan Gohman
3968f90c4c Fix the conditions under which SCCP should examine insertvalue
instructions. Thanks to Matthijs Kooijman for pointing this out!

llvm-svn: 52542
2008-06-20 16:39:44 +00:00
Dan Gohman
b4ee9dfc2d Teach SCCP about insertvalue and extractvalue, and about
propagating constants across aggregate return values when
insertvalue and extractvalue are used.

llvm-svn: 52520
2008-06-20 01:15:44 +00:00
Chris Lattner
bde5fd685d Fix PR2358 by resolving calls with undef arguments to overdefined.
llvm-svn: 51535
2008-05-24 03:59:33 +00:00
Dale Johannesen
da54faec0c Allow for switch with no cases. Was causing fault
in gcc.dg/pr27531-1.c.

llvm-svn: 51464
2008-05-23 01:01:31 +00:00
Dan Gohman
bab18cae46 Clean up the use of static and anonymous namespaces. This turned up
several things that were neither in an anonymous namespace nor static
but not intended to be global.

llvm-svn: 51017
2008-05-13 00:00:25 +00:00
Chris Lattner
b700ffd977 Fix various DOUTs to not call the extremely expensive Value::getName()
method.  DOUT statements are disabled when assertions are off, but the
side effects of getName() are still evaluated.  Just call getNameSTart,
which is close enough and doesn't cause heap traffic.

llvm-svn: 50958
2008-05-11 01:55:59 +00:00
Chris Lattner
858c3299c1 Simplify code by using SwitchInst::findCaseValue instead of reimplementing it.
llvm-svn: 50957
2008-05-10 23:56:54 +00:00
Nick Lewycky
1f831c0f57 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
a646a59205 code restructuring, not functionality change.
llvm-svn: 50203
2008-04-24 00:21:50 +00:00
Chris Lattner
10ffed0ed0 Don't replace multiple result of calls with undef,
sccp tracks getresult values, not call values in this
case.

llvm-svn: 50202
2008-04-24 00:19:54 +00:00
Chris Lattner
8c6e641cf4 code cleanup, no functionality change.
llvm-svn: 50201
2008-04-24 00:16:28 +00:00
Chris Lattner
721ea7ca10 Rewrite multiple return value handling in SCCP. Before, the -sccp pass
would turn every getresult instruction into undef.  This helps with
rdar://5778210

llvm-svn: 50140
2008-04-23 05:38:20 +00:00
Devang Patel
47b4a18b75 Be conservative if getresult operand is neither call nor invoke.
llvm-svn: 49430
2008-04-09 15:58:24 +00:00
Gabor Greif
6c6b8a57f3 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
Dan Gohman
a363ba510c Don't include <map> in Pass.h, which doesn't need it. This requires
adding <map> to many files that actually do need it.

llvm-svn: 48667
2008-03-21 23:51:57 +00:00
Devang Patel
e163bda565 Add TODO reminder.
llvm-svn: 48227
2008-03-11 17:32:05 +00:00
Devang Patel
6c189c16b5 Initial multiple return values support.
llvm-svn: 48210
2008-03-11 05:46:42 +00:00
Nick Lewycky
8626cfb86d SCCP also needs to be taught to follow unwind_to
llvm-svn: 48109
2008-03-09 09:44:38 +00:00
Nick Lewycky
e13db2c263 Not all users of a BB are Instructions any more.
llvm-svn: 48047
2008-03-08 07:48:41 +00:00
Anton Korobeynikov
fd6b669c80 Make Transforms to be 4.3 warnings-clean
llvm-svn: 47371
2008-02-20 11:26:25 +00:00
Chris Lattner
7250586ec9 Fix PR1938 by forcing the code that uses an undefined value to branch one
way or the other.  Rewriting the code itself prevents subsequent analysis
passes from making contradictory conclusions about the code that could 
cause an infeasible path to be made feasible.

llvm-svn: 46427
2008-01-28 00:32:30 +00:00
Chris Lattner
ad9a6ccb83 Remove attribution from file headers, per discussion on llvmdev.
llvm-svn: 45418
2007-12-29 20:36:04 +00:00
Christopher Lamb
dfad5f19b4 Disable null pointer folding transforms for non-generic address spaces. This should probably be a target-specific predicate based on address space. That way for targets where this isn't applicable the predicate can be optimized away.
llvm-svn: 45403
2007-12-29 07:56:53 +00:00
Dan Gohman
30ba45b569 Use empty() member functions when that's what's being tested for instead
of comparing begin() and end().

llvm-svn: 42585
2007-10-03 19:26:29 +00:00
Duncan Sands
4b390d541e Place SCCPSolver also in the anonymous namespace. This
pacifies g++-4.2.

llvm-svn: 40089
2007-07-20 08:56:21 +00:00
Devang Patel
6e8f1aa332 Fix PR1431
Test case at Transformations/SCCP/2007-05-16-InvokeCrash.ll

llvm-svn: 37185
2007-05-17 22:10:15 +00:00
Nick Lewycky
c2306ff5b4 Fix typo in comment.
llvm-svn: 36873
2007-05-06 13:37:16 +00:00
Devang Patel
cd45427a87 Drop 'const'
llvm-svn: 36662
2007-05-03 01:11:54 +00:00
Devang Patel
8ee9065162 Use 'static const char' instead of 'static const int'.
Due to darwin gcc bug, one version of darwin linker coalesces
static const int, which defauts PassID based pass identification.

llvm-svn: 36652
2007-05-02 21:39:20 +00:00
Devang Patel
38a66bc82e Do not use typeinfo to identify pass in pass manager.
llvm-svn: 36632
2007-05-01 21:15:47 +00:00
Chris Lattner
022c2bc0c3 fix long lines
llvm-svn: 36031
2007-04-14 23:32:02 +00:00
Chris Lattner
758a83d1b0 minor cleanups
llvm-svn: 34904
2007-03-04 04:50:21 +00:00
Reid Spencer
55e4e98a2a For PR1195:
Rename PackedType -> VectorType, ConstantPacked -> ConstantVector, and
PackedTyID -> VectorTyID. No functional changes.

llvm-svn: 34293
2007-02-15 02:26:10 +00:00
Reid Spencer
8749d297f5 Apply the VISIBILITY_HIDDEN field to the remaining anonymous classes in
the Transforms library. This reduces debug library size by 132 KB, debug
binary size by 376 KB, and reduces link time for llvm tools slightly.

llvm-svn: 33939
2007-02-05 23:32:05 +00:00
Chris Lattner
d3fb549bdc Switch this back to using an std::map. DenseMap entries are getting invalidated
llvm-svn: 33799
2007-02-02 22:36:16 +00:00
Chris Lattner
3ae99a1181 Remove more malloc thrashing, this speeds up IPSCCP on kimwitu another 6.7%.
llvm-svn: 33796
2007-02-02 21:15:06 +00:00
Chris Lattner
dec49cea56 Convert an std::set to SmallSet, this speeds up IPSCCP 17% on kimwitu.
llvm-svn: 33794
2007-02-02 20:57:39 +00:00
Chris Lattner
e9c0bac4c5 eliminate a malloc/free for (almost) every GEP processed. This speeds up
IPSCCP 3.3% on kimwitu.

llvm-svn: 33793
2007-02-02 20:51:48 +00:00
Chris Lattner
449f7d0d63 switch hash_map's over to DenseMap in SCCP. This speeds up SCCP by 30% in
a release-assert build on kimwitu++.

llvm-svn: 33792
2007-02-02 20:38:30 +00:00
Reid Spencer
591bfa1e0b Changes to support making the shift instructions be true BinaryOperators.
This feature is needed in order to support shifts of more than 255 bits
on large integer types.  This changes the syntax for llvm assembly to
make shl, ashr and lshr instructions look like a binary operator:
   shl i32 %X, 1
instead of
   shl i32 %X, i8 1
Additionally, this should help a few passes perform additional optimizations.

llvm-svn: 33776
2007-02-02 02:16:23 +00:00
Chris Lattner
7db51ec161 Adjust #includes to match movement of constant folding code from transformutils to libanalysis.
llvm-svn: 33680
2007-01-30 23:46:24 +00:00
Chris Lattner
129e04aa43 use smallvector instead of vector to make constant folding a bit more efficient
llvm-svn: 33672
2007-01-30 23:15:19 +00:00
Reid Spencer
19af04a142 For PR1136: Rename GlobalVariable::isExternal as isDeclaration to avoid
confusion with external linkage types.

llvm-svn: 33663
2007-01-30 20:08:39 +00:00
Chris Lattner
8b6e091a62 Fix a minor bug handling constant exprs, introduced by a recent patch.
llvm-svn: 33175
2007-01-13 00:42:58 +00:00
Reid Spencer
373d2bccea For PR1064:
Implement the arbitrary bit-width integer feature. The feature allows
integers of any bitwidth (up to 64) to be defined instead of just 1, 8,
16, 32, and 64 bit integers.

This change does several things:
1. Introduces a new Derived Type, IntegerType, to represent the number of
   bits in an integer. The Type classes SubclassData field is used to
   store the number of bits. This allows 2^23 bits in an integer type.
2. Removes the five integer Type::TypeID values for the 1, 8, 16, 32 and
   64-bit integers. These are replaced with just IntegerType which is not
   a primitive any more.
3. Adjust the rest of LLVM to account for this change.

Note that while this incremental change lays the foundation for arbitrary
bit-width integers, LLVM has not yet been converted to actually deal with
them in any significant way. Most optimization passes, for example, will
still only deal with the byte-width integer types.  Future increments
will rectify this situation.

llvm-svn: 33113
2007-01-12 07:05:14 +00:00
Reid Spencer
3d986f6487 Implement review feedback for the ConstantBool->ConstantInt merge. Chris
recommended that getBoolValue be replaced with getZExtValue and that
get(bool) be replaced by get(const Type*, uint64_t). This implements
those changes.

llvm-svn: 33110
2007-01-12 04:24:46 +00:00
Reid Spencer
f3265181e2 Rename BoolTy as Int1Ty. Patch by Sheng Zhou.
llvm-svn: 33076
2007-01-11 18:21:29 +00:00
Zhou Sheng
23d24526b2 For PR1043:
Merge ConstantIntegral and ConstantBool into ConstantInt.
Remove ConstantIntegral and ConstantBool from LLVM.

llvm-svn: 33073
2007-01-11 12:24:14 +00:00
Chris Lattner
06b8d30502 Enable a couple xforms for packed vectors (undef | v) -> -1 for packed.
llvm-svn: 32858
2007-01-04 02:12:40 +00:00
Jim Laskey
06f1a4227e Vectors are not supported by ConstantInt::getAllOnesValue.
llvm-svn: 32827
2007-01-03 00:11:03 +00:00
Reid Spencer
7eeddcbe43 Fix a typo.
llvm-svn: 32803
2006-12-31 22:26:06 +00:00
Reid Spencer
4428c3483b For PR950:
This patch removes the SetCC instructions and replaces them with the ICmp
and FCmp instructions. The SetCondInst instruction has been removed and
been replaced with ICmpInst and FCmpInst.

llvm-svn: 32751
2006-12-23 06:05:41 +00:00
Chris Lattner
c4b04b65ba handle undef values much more carefully: generalize the resolveundefbranches
code to handle instructions as well, so that we properly fold things like
X & undef -> 0.
This fixes Transforms/SCCP/2006-12-19-UndefBug.ll

llvm-svn: 32715
2006-12-20 06:21:33 +00:00
Chris Lattner
9e7640cf02 Switch over Transforms/Scalar to use the STATISTIC macro. For each statistic
converted, we lose a static initializer.  This also allows GCC to emit warnings
about unused statistics.

llvm-svn: 32690
2006-12-19 21:40:18 +00:00
Reid Spencer
562b83c7df Change inferred getCast into specific getCast. Passes all tests.
llvm-svn: 32469
2006-12-12 05:05:00 +00:00
Bill Wendling
a3246c4272 Changed llvm_ostream et all to OStream. llvm_cerr, llvm_cout, llvm_null, are
now cerr, cout, and NullStream resp.

llvm-svn: 32298
2006-12-07 01:30:32 +00:00
Chris Lattner
a531ce882e Detemplatize the Statistic class. The only type it is instantiated with
is 'unsigned'.

llvm-svn: 32279
2006-12-06 17:46:33 +00:00
Devang Patel
ae17721f63 SCCP does not handle Packed Type properly. Disable Packed Type handling
for now.

llvm-svn: 32208
2006-12-04 23:54:59 +00:00
Bill Wendling
1b3a86000a Removed #include <iostream> and replaced with llvm_* streams.
llvm-svn: 31923
2006-11-26 09:46:52 +00:00
Reid Spencer
4bafa71dc1 For PR786:
Turn on -Wunused and -Wno-unused-parameter. Clean up most of the resulting
fall out by removing unused variables. Remaining warnings have to do with
unused functions (I didn't want to delete code without review) and unused
variables in generated code. Maintainers should clean up the remaining
issues when they see them. All changes pass DejaGnu tests and Olden.

llvm-svn: 31380
2006-11-02 20:25:50 +00:00
Chris Lattner
91e628645b Handle fallout from the recent branch-on-undef changes. This fixes
Prolangs-C/agrep and SCCP/2006-10-23-IPSCCP-Crash.ll

llvm-svn: 31132
2006-10-23 18:57:02 +00:00
Chris Lattner
50b3810d9a 3 Changes:
1. Better document what is going on here.
2. Only hack on one branch per iteration, making the results less conservative.
3. Handle the problematic case by marking edges executable instead of by
   playing with value lattice states.  This is far less pessimistic, and fixes
   SCCP/ipsccp-gvar.ll.

llvm-svn: 31106
2006-10-22 05:59:17 +00:00
Chris Lattner
6ea0134893 Fix an ugly problem in SCCP. This fixes Benchmarks/Misc-C++/mandel-text.cpp
llvm-svn: 31073
2006-10-20 20:19:08 +00:00
Chris Lattner
168061f13d Eliminate ConstantBool::True and ConstantBool::False. Instead, provide
ConstantBool::getTrue() and ConstantBool::getFalse().

llvm-svn: 30665
2006-09-28 23:35:22 +00:00
Chris Lattner
a39dcb5377 eliminate RegisterOpt. It does the same thing as RegisterPass.
llvm-svn: 29925
2006-08-27 22:42:52 +00:00
Chris Lattner
a0a718c0cc Add supprot for shufflevector
llvm-svn: 27513
2006-04-08 01:19:12 +00:00
Chris Lattner
09ae00eba1 Implement some more interesting select sccp cases. This implements:
test/Regression/Transforms/SCCP/select.ll

llvm-svn: 26049
2006-02-08 02:38:11 +00:00
Chris Lattner
2588f0eb8f Make iostream #inclusion explicit
llvm-svn: 25514
2006-01-22 23:32:06 +00:00
Robert Bocchino
d9fa267a49 Lowerpacked and SCCP support for the insertelement operation.
llvm-svn: 25406
2006-01-17 20:06:55 +00:00