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Author SHA1 Message Date
Evan Cheng 53ce7de03b Global ctors / dtors alignment shouldn't be hard-coded at 4. e.g. It could be 8 for 64-bit targets. 
llvm-svn: 37421
 2007-06-04 20:39:18 +00:00
Evan Cheng 91233153bf Forgot to check for if iterator reached the end. 
llvm-svn: 37420
 2007-06-04 20:33:36 +00:00
Evan Cheng 59ca6a846f Misuse of hasExternalLinkage(), should be checking isDeclaration(). 
llvm-svn: 37419
 2007-06-04 18:54:57 +00:00
Owen Anderson 38b6b22a41 Make phi_translate correct. 
llvm-svn: 37418
 2007-06-04 18:05:26 +00:00
Devang Patel 4a7c2830d4 Add FIXMEs. 
llvm-svn: 37417
 2007-06-04 17:38:00 +00:00
Devang Patel f7a4aad658 Remove unused method. 
llvm-svn: 37416
 2007-06-04 16:49:36 +00:00
Devang Patel ebc5b96735 s/DominatorTree::createNewNode/DominatorTree::addNewBlock/g 
llvm-svn: 37415
 2007-06-04 16:43:25 +00:00
Devang Patel a89566aefd Add basic block level interface to change immediate dominator 
and create new node.

llvm-svn: 37414
 2007-06-04 16:22:33 +00:00
Dan Gohman b4c2690446 Pass the DAG to SDNode::dump to let it do more detailed dumps in some cases. 
llvm-svn: 37413
 2007-06-04 16:17:33 +00:00
Dan Gohman a23ef8a8f2 Remove the operator<< for MVT::ValueType in preparation for MVT::ValueType 
being changed from an enum to an integer type, which can't have a custom
operator<< overload.

llvm-svn: 37412
 2007-06-04 16:11:03 +00:00
Dan Gohman 92a7f3a65e Resolve implicit alignment before computing the FoldingSet information so 
that the CSE map always contains explicit alignment information. This allows
more loads to be CSE'd when there is a mix of explicit-alignment loads and
implicit-alignment loads.

Also, in SelectionDAG::FindModifiedNodeSlot, add the operands to the
FoldingSetNodeID before the load/store information instead of after, so
that it matches what is done elsewhere.

llvm-svn: 37411
 2007-06-04 15:49:41 +00:00
Devang Patel d609374ab3 Fix LLVM build on NetBSD. Patch by Neil Booth. 
llvm-svn: 37410
 2007-06-04 15:28:57 +00:00
Evan Cheng 312b723af2 Let IfConverter loose. Allow more aggressive subsumptions; reorder basic blocks to expose more ifcvt opportunities; code clean up and fixes. 
llvm-svn: 37409
 2007-06-04 06:47:22 +00:00
Evan Cheng df75785594 Move ReplaceUsesOfBlockWith() out of BranchFolding into a MachineBasicBlock general facility. 
llvm-svn: 37408
 2007-06-04 06:44:01 +00:00
Devang Patel bdd1aaef10 s/llvm::DominatorTreeBase::DomTreeNode/llvm::DomTreeNode/g 
llvm-svn: 37407
 2007-06-04 00:32:22 +00:00
Owen Anderson 0eca9aad10 Don't use the custom comparator where it's not necessary. 
llvm-svn: 37406
 2007-06-03 22:02:14 +00:00
Anton Korobeynikov b781886de7 Add comments to fallsthrough cases. Also, this fixes PR1492 
llvm-svn: 37405
 2007-06-03 19:20:49 +00:00
Anton Korobeynikov 8c32c1114f Check arguments & return types of main(). Abort in case of no match. 
llvm-svn: 37404
 2007-06-03 19:17:35 +00:00
Devang Patel 0e8aa7b69a s/DominatorTreeBase::Node/DominatorTreeBase:DomTreeNode/g 
llvm-svn: 37403
 2007-06-03 06:26:14 +00:00
Owen Anderson 46499645db Remove an unused method. 
llvm-svn: 37402
 2007-06-03 05:58:25 +00:00
Owen Anderson 0b68cda302 There's no need to have an Expression class... Value works just as well! This simplifies a lot of code. 
llvm-svn: 37401
 2007-06-03 05:55:58 +00:00
Chris Lattner 446548d2a3 update this entry, now that Anton implemented shift/and lowering for 
switches.  There is one really easy isel thing here with tst we are not
getting.

llvm-svn: 37400
 2007-06-02 18:45:14 +00:00
Duncan Sands f708f73a1b The semantics of invoke require that we always jump to the unwind block 
(landing pad) when an exception unwinds through the call.  This doesn't
quite match the way the dwarf unwinder works: by default it only jumps to
the landing pad if the catch or filter specification matches, and otherwise
it keeps on unwinding.  There are two ways of specifying to the unwinder
that it should "always" (more on why there are quotes here later) jump to
the landing pad: follow the specification by a 0 typeid, or follow it by
the typeid for the NULL typeinfo.  GCC does the first, and this patch makes
LLVM do the same as gcc.  However there is a problem: the unwinder performs
optimizations based on C++ semantics (it only expects destructors to be
run if the 0 typeid fires - known as "cleanups"), meaning it assumes that no
exceptions will be raised and that the raised exception will be reraised
at the end of the cleanup code.  So if someone writes their own LLVM code
using the exception intrinsics they will get a nasty surprise if they don't
follow these rules.  The other possibility of using the typeid corresponding
to NULL (catch-all) causes the unwinder to make no assumptions, so this is
probably what we should use in the long-run.  However since we are still
having trouble getting exception handling working properly, for the moment
it seems best to closely imitate GCC.

llvm-svn: 37399
 2007-06-02 17:16:06 +00:00
Duncan Sands c063f5f362 Integrate exception filter support and exception catch support. This 
simplifies the code in DwarfWriter, allows for multiple filters and
makes it trivial to specify filters accompanied by cleanups or catch-all
specifications (see next patch).  What a deal!  Patch blessed by Anton.

llvm-svn: 37398
 2007-06-02 16:53:42 +00:00
Zhou Sheng 0a0ae932ca Make LowerCTPOP() support arbitrary bitwidth integer type. 
llvm-svn: 37397
 2007-06-02 04:10:33 +00:00
Dale Johannesen 6e7cdce773 Fix CorrectExtraCFGEdges to allow for multiple LandingPad targets. 
llvm-svn: 37394
 2007-06-02 00:08:15 +00:00
Dale Johannesen 9746e3a22b Fancier algorithm in tail-merge comment implemented, so remove comment. 
llvm-svn: 37393
 2007-06-01 23:04:28 +00:00
Dale Johannesen 3c0a13762d Implement smarter algorithm for choosing which blocks to tail-merge. 
See test/CodeGen/X86/test-pic-jtbl.ll for a case where it works well;
shaves another 10K off our favorite benchmark.  I was hesitant about
this because of compile speed, but seems to do OK on a bootstrap.

llvm-svn: 37392
 2007-06-01 23:02:45 +00:00
Reid Spencer ff38cf8880 For PR1486: 
Avoid overwriting the APInt instance with 0 bytes which causes the bitwidth
to be set to 0 (illegal) producing a subsequent assert.

llvm-svn: 37391
 2007-06-01 22:23:29 +00:00
Devang Patel ac54a62fd2 Insert new instructions in AliasSet. 
llvm-svn: 37390
 2007-06-01 22:15:31 +00:00
Owen Anderson 48e93f2ce9 clean() needs to process things in topological order. 
llvm-svn: 37389
 2007-06-01 22:00:37 +00:00
Evan Cheng 9aa5fc8577 Opcode modifier s comes after condition code. e.g. addlts, not addslt. 
llvm-svn: 37388
 2007-06-01 20:51:29 +00:00
Evan Cheng 4dcf1e8582 Correctly mark early-exit on the false path. 
llvm-svn: 37387
 2007-06-01 20:29:21 +00:00
Owen Anderson 4c89142466 Fix Expression comparison, which in turn fixes a value numbering error. 
llvm-svn: 37386
 2007-06-01 17:34:47 +00:00
Evan Cheng 256144de4a Set ARM ifcvt duplication limit to 3 for now. 
llvm-svn: 37385
 2007-06-01 08:28:59 +00:00
Evan Cheng b964b9c025 Target specific ifcvt code duplication limit. 
llvm-svn: 37384
 2007-06-01 08:25:24 +00:00
Duncan Sands 706421e712 Since TypeInfos are passed as i8 pointers, a NULL TypeInfo should be passed 
as a null i8 pointer not as a 0 i32.

llvm-svn: 37383
 2007-06-01 08:18:30 +00:00
Evan Cheng 6a2cf070cc Ifcvt triangle: don't ifcvt 'true' BB if it has other predecessors; don't merge 'false' BB if it has other predecessors. 
llvm-svn: 37382
 2007-06-01 07:41:07 +00:00
Evan Cheng a2ab4e5feb Make jumptable non-predicable for now. 
llvm-svn: 37381
 2007-06-01 00:56:15 +00:00
Evan Cheng 95c7917d92 Remove a bogus check. Even terminators in a ifcvt need to be predicated. Unconditional branches can usually be converted to conditional ones. 
llvm-svn: 37380
 2007-06-01 00:55:26 +00:00
Evan Cheng 20e05997f5 Allow multiple ifcvt candidates to share children blocks; add some debugging code. 
llvm-svn: 37379
 2007-06-01 00:12:12 +00:00
Owen Anderson 331bf6a959 Add a topological sort function. 
llvm-svn: 37376
 2007-05-31 22:44:11 +00:00
Dale Johannesen 1a401e68a8 Arrange for only 1 of multiple branches to landing pad to be kept. 
Do not remove empty landing pads (EH table needs to be updated)

llvm-svn: 37375
 2007-05-31 21:54:00 +00:00
Evan Cheng e6ccb6c5ed Fix a typo. 
llvm-svn: 37374
 2007-05-31 20:53:33 +00:00
Chris Lattner 3e3ff30aa2 Fix the asmprinter so that a globalvalue can specify an explicit alignment 
smaller than the preferred alignment, but so that the target can actually
specify a minimum alignment if needed.  This fixes some objc protocol
failures Devang tracked down.

llvm-svn: 37373
 2007-05-31 18:57:45 +00:00
Lauro Ramos Venancio 5a3e6fe365 Add a test for PR1424. 
llvm-svn: 37372
 2007-05-31 18:36:07 +00:00
Lauro Ramos Venancio 5b0757a401 Fix PR1424. 
When a function has FP, the register scavenging spill slot offset already
was calculated.

llvm-svn: 37371
 2007-05-31 18:27:58 +00:00
Bill Wendling 96114686ae Alphabetize Bruno's entry. 
llvm-svn: 37368
 2007-05-31 04:14:28 +00:00
Bruno Cardoso Lopes 0a2eee18b1 New contributor added! 
llvm-svn: 37367
 2007-05-31 03:25:10 +00:00
Owen Anderson 81d156e16f Attempt to fix up phi_translate. 
llvm-svn: 37366
 2007-05-31 00:42:15 +00:00
Evan Cheng 905a8f4940 Change traversal order to bottom up in preparation for more aggressive if-conversion. 
llvm-svn: 37365
 2007-05-30 19:49:19 +00:00
Chris Lattner 397c4d9ef6 Fix CodeGen/PowerPC/2007-05-30-dagcombine-miscomp.ll, and PR1473. 
llvm-svn: 37362
 2007-05-30 16:30:06 +00:00
Chris Lattner 4217aa376a new testcase for PR1473 
llvm-svn: 37361
 2007-05-30 16:29:20 +00:00
Devang Patel 9b3b35d14f Fix typo. 
llvm-svn: 37360
 2007-05-30 15:29:37 +00:00
Duncan Sands d9e3786d2f Testcase for 
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070528/050047.html

llvm-svn: 37359
 2007-05-30 10:16:19 +00:00
Chris Lattner 8767920f20 Fix Transforms/ScalarRepl/2007-05-29-MemcpyPreserve.ll and the second 
half of PR1421, by not decimating structs with holes that are the source and
destination of a memcpy.

llvm-svn: 37358
 2007-05-30 06:11:23 +00:00
Chris Lattner ed24b3b2fa Testcase for PR1421 
llvm-svn: 37357
 2007-05-30 06:10:46 +00:00
Chris Lattner b6506a636b new testcase for PR1421 
llvm-svn: 37356
 2007-05-30 05:37:18 +00:00
Dale Johannesen d14ad078c6 Changed per review comment. 
llvm-svn: 37355
 2007-05-30 00:32:01 +00:00
Dale Johannesen a69ebdbebc Make stable_sort in tail merging actually be stable (it never was, but didn't 
matter until my last change).  Reenable tail merging by default.

llvm-svn: 37354
 2007-05-29 23:47:50 +00:00
Evan Cheng 20f7d30f92 Don't merge in tail block of a diamond if it has more than one predecessors after if-conversion. 
llvm-svn: 37353
 2007-05-29 23:37:20 +00:00
Owen Anderson 9429cd1a61 Put GVN-PRE in all the right places. 
llvm-svn: 37352
 2007-05-29 23:36:32 +00:00
Evan Cheng 19eeee41ca For VFP2 fldm, fstm instructions, the condition code is printed after the address mode and size specifier. e.g. fstmiaseq, not fstmeqias. 
llvm-svn: 37351
 2007-05-29 23:34:19 +00:00
Owen Anderson 4b0c1859fd Fix a typo 
llvm-svn: 37350
 2007-05-29 23:34:14 +00:00
Evan Cheng a6e9a4ce07 For ldrb, strh, etc., the condition code is before the width specifier. e.g. streqh, not strheq. 
llvm-svn: 37349
 2007-05-29 23:32:06 +00:00
Owen Anderson 0c4230724c Re-fix a bug, where I was now being too aggressive. 
llvm-svn: 37348
 2007-05-29 23:26:30 +00:00
Owen Anderson 4a6ec8fb57 Use proper debugging facilities so other people don't have to look at my commented-out 
debugging lines.

llvm-svn: 37347
 2007-05-29 23:15:21 +00:00
Owen Anderson f11bdc7637 Comment debug code out that I accidentally uncommented last time. 
llvm-svn: 37346
 2007-05-29 22:43:03 +00:00
Owen Anderson ac83a3e4ff Add a place where I missed using the maximal set. Note that using the maximal 
set this way is _SLOW_.  Somewhere down the line, I'll look at speeding it up.

llvm-svn: 37345
 2007-05-29 22:35:41 +00:00
Evan Cheng c2237ce217 If there is an empty block between a source and its successor block, it still requires a unconditional branch. 
llvm-svn: 37344
 2007-05-29 22:31:16 +00:00
Owen Anderson 5fba6c19b2 Very first part of a GVN-PRE implementation. It currently performs a bunch of analysis, and nothing more. It is also quite slow for the moment. However, 
it should give a sense of what's going on.

llvm-svn: 37343
 2007-05-29 21:53:49 +00:00
Evan Cheng 2d91a4fd6a Add missing const qualifiers. 
llvm-svn: 37342
 2007-05-29 18:42:18 +00:00
Evan Cheng 5983bdbb2c Add missing const qualifiers. 
llvm-svn: 37341
 2007-05-29 18:35:22 +00:00
Nicolas Geoffray cff3e122b0 Implementation of compilation callback in PPC ELF32 
llvm-svn: 37340
 2007-05-29 16:33:18 +00:00
Chris Lattner a446f1b46b more fixes to C code. 
llvm-svn: 37339
 2007-05-29 15:43:56 +00:00
Bill Wendling 2d8b9a8834 Fixed some formatting. 
llvm-svn: 37338
 2007-05-29 09:42:13 +00:00
Bill Wendling 0a303eb474 Added "llvmc" to the FAQ. 
llvm-svn: 37337
 2007-05-29 09:35:34 +00:00
Bill Wendling 2c22fcb11c Added "doc_class" div tags to code segments. 
llvm-svn: 37336
 2007-05-29 09:24:33 +00:00
Bill Wendling 3716c5df29 Fix for PR1452. Removed "define" keyword from the C code. Added "<div 
class="doc_code">" to code examples.

llvm-svn: 37335
 2007-05-29 09:04:49 +00:00
Chris Lattner 8deaba7622 Add a new LLVMBuilder class, which makes it simpler and more uniform to 
create large amounts of instructions by separating the insertion point
logic from the logic of what to create.

llvm-svn: 37332
 2007-05-27 15:09:34 +00:00
Zhou Sheng d7dc1ed64c Correct the logic in LowerPartSet which cleared the bits from 0 to low-1. 
llvm-svn: 37331
 2007-05-26 03:43:13 +00:00
Chris Lattner 4698083b96 tighten up recursion depth again 
llvm-svn: 37330
 2007-05-25 02:19:06 +00:00
Devang Patel 1b63e7a4b8 Disable Tail Merging for now. 
llvm-svn: 37329
 2007-05-25 01:00:24 +00:00
Evan Cheng 13f5f7df95 Silly boog. 
llvm-svn: 37328
 2007-05-25 00:59:01 +00:00
Chris Lattner c87f3dff51 remove contradiction owen noticed 
llvm-svn: 37327
 2007-05-24 19:13:27 +00:00
Chris Lattner 80c94a4a04 Fix PR1446 by not scalarrepl'ing giant structures. 
llvm-svn: 37326
 2007-05-24 18:43:04 +00:00
Chris Lattner 49a34fcca7 testcase for PR1446 
llvm-svn: 37325
 2007-05-24 18:42:47 +00:00
Dale Johannesen 1409b6a59b Blocks that cond-br and uncond-br/fallthrough to same block should have 
only one successor.

llvm-svn: 37324
 2007-05-24 18:31:55 +00:00
Dale Johannesen 1af8c870c7 Fix for PR1444: do not create two successors to the same block. 
Temporarily, this breaks CodeGen/Generic/2006-02-12-InsertLibraryCall.ll
by exposing an unrelated latent problem; working on that.

llvm-svn: 37323
 2007-05-24 17:39:32 +00:00
Zhou Sheng 8ff9ff7975 Compute the correct word number. 
llvm-svn: 37322
 2007-05-24 15:03:18 +00:00
Dan Gohman 30978078bf Minor comment cleanups. 
llvm-svn: 37321
 2007-05-24 14:36:04 +00:00
Dan Gohman 703e0f8608 Add explicit qualification for namespace MVT members. 
llvm-svn: 37320
 2007-05-24 14:33:05 +00:00
Dan Gohman 5d4bb4f230 Add cases for v2f32. 
llvm-svn: 37319
 2007-05-24 14:29:12 +00:00
Evan Cheng a4d187b8ce Fix a typo that caused combiner to create mal-formed pre-indexed store where value store is the same as the base pointer. 
llvm-svn: 37318
 2007-05-24 02:35:39 +00:00
Evan Cheng b58bf97603 Add a new test case. 
llvm-svn: 37317
 2007-05-24 02:31:15 +00:00
Dale Johannesen d750b46f8b tail merging shrinks this code a bit. Could do more in future. 
llvm-svn: 37316
 2007-05-23 21:09:26 +00:00
Dale Johannesen f4a77d2481 Two tail merging improvements: 
When considering blocks with more than 2 predecessors, merge the block with
the largest number of matching insns, rather than the first block found.
Considering that 1 matching insn is enough to show a win for candidates that
already end with a branch.

llvm-svn: 37315
 2007-05-23 21:07:20 +00:00
Devang Patel d50859e87b Add dump() routines for debugging assistance. 
llvm-svn: 37314
 2007-05-23 19:55:36 +00:00
Anton Korobeynikov 3b327826db Mark all calls as "could throw", when exceptions are enabled. Emit necessary LP info too. This fixes PR1439 
llvm-svn: 37311
 2007-05-23 11:08:31 +00:00
Chris Lattner 6509c0673f prevent exponential recursion in isNegatibleForFree 
llvm-svn: 37310
 2007-05-23 07:35:22 +00:00
Evan Cheng d0e669199b Preliminary iterative if-conversion support. 
llvm-svn: 37309
 2007-05-23 07:23:16 +00:00
Evan Cheng 1d764eca98 Hooks for predication support. 
llvm-svn: 37308
 2007-05-23 07:22:05 +00:00
Evan Cheng c972de8c8b Rename a parameter. 
llvm-svn: 37307
 2007-05-23 07:21:11 +00:00
Evan Cheng 1e25f56508 Add a couple of target hooks for predication. 
llvm-svn: 37306
 2007-05-23 07:19:12 +00:00
Chris Lattner 688b2807df when merging two alias sets together, be sure to propagate the volatility of 
the inner set.  This fixes PR1435 and Transforms/LICM/2007-05-22-VolatileSink.ll

llvm-svn: 37305
 2007-05-23 06:36:35 +00:00
Chris Lattner e44b6a6aaf new testcase for PR1435 
llvm-svn: 37304
 2007-05-23 06:35:52 +00:00
Chris Lattner c7e60517ed make these accessors private. 
llvm-svn: 37302
 2007-05-23 05:46:04 +00:00
Devang Patel 4d01a7b1b5 If user wants to run instcombine twice, do not block it. 
llvm-svn: 37301
 2007-05-23 05:08:52 +00:00
Chris Lattner bee7b32ef8 final updates 
llvm-svn: 37299
 2007-05-23 04:39:32 +00:00
Chris Lattner f79577d314 fix a miscompilation when passing a float through varargs 
llvm-svn: 37297
 2007-05-23 01:17:04 +00:00
Reid Spencer c23c9fce34 The Intrinsic::getDeclaration function's Tys parameter only contains the 
types of the iAny types involved in the overloaded intrinsic. Thus, we
can't use the argument number as the index but have to count them separately
in order to index Tys correctly. This patch rectifies this situation.

llvm-svn: 37296
 2007-05-22 19:30:31 +00:00
Reid Spencer bdf03b4174 Reinstate the patch for escaping non-printing characters and allow for 
\\ to escape \. All these cases are now handled by the AsmParser.

llvm-svn: 37295
 2007-05-22 19:27:35 +00:00
Reid Spencer c5cec2a4e8 Regenerate. 
llvm-svn: 37294
 2007-05-22 19:08:16 +00:00
Reid Spencer 0f656c39e1 Don't allow the UnEscape code to read or write beyond the end of yytext. 
Make sure we convert \\ into \.

llvm-svn: 37293
 2007-05-22 19:07:45 +00:00
Reid Spencer acfe667eab Regenerate. 
llvm-svn: 37292
 2007-05-22 18:52:55 +00:00
Reid Spencer 3b208cca84 Implement full unescaping of escaped hex characters in all quoted identifiers 
and strings.

llvm-svn: 37291
 2007-05-22 18:52:21 +00:00
Dale Johannesen 10c5ccc68f Document boolOrDefault and its parser. 
llvm-svn: 37290
 2007-05-22 18:32:34 +00:00
Dale Johannesen f9cbdc676c name change requested by review of previous patch 
llvm-svn: 37289
 2007-05-22 18:31:04 +00:00
Owen Anderson 0ae7eb5e7c Silence a warning. 
llvm-svn: 37288
 2007-05-22 18:13:40 +00:00
Dale Johannesen a7120dde08 new testcases for -enable-tail-merge default handling 
llvm-svn: 37287
 2007-05-22 17:19:23 +00:00
Dale Johannesen 80fae16a06 Test assumes tail merging is off; this must now be explicit. 
llvm-svn: 37286
 2007-05-22 17:18:05 +00:00
Dale Johannesen 82810c8a13 Make tail merging the default, except on powerPC. There was no prior art 
for a target-dependent default with a command-line override; this way
should be generally usable.

llvm-svn: 37285
 2007-05-22 17:14:46 +00:00
Chris Lattner 83d7dd419a temporarily revert reid's asmwriter patch, it is missing the asmparser piece 
that decodes the escape sequences, thus breaking all cases that use them.

This fixes test/Assembler/2007-05-21-Escape.ll

llvm-svn: 37284
 2007-05-22 07:00:50 +00:00
Chris Lattner 9a0ff5961b new testcase for a recent regression 
llvm-svn: 37283
 2007-05-22 07:00:38 +00:00
Chris Lattner 77119f43af update comment 
llvm-svn: 37282
 2007-05-22 06:56:32 +00:00
Chris Lattner 31ab0ed37f regenerate 
llvm-svn: 37281
 2007-05-22 06:47:55 +00:00
Chris Lattner 9111cd6b8a simplify code 
llvm-svn: 37280
 2007-05-22 06:47:11 +00:00
Tanya Lattner 3e85207fef NightlyTest.pl does not exist. 
llvm-svn: 37278
 2007-05-22 06:12:51 +00:00
Tanya Lattner e94a09e357 Adding 2.0 release 
llvm-svn: 37277
 2007-05-22 06:06:22 +00:00
Bill Wendling 3fb7fdfded We only need to specify the most-implied feature for an architecture. 
llvm-svn: 37275
 2007-05-22 05:15:37 +00:00
Evan Cheng 1933bbc735 Consistency. 
llvm-svn: 37274
 2007-05-22 01:21:58 +00:00
Evan Cheng 204af78b96 Add test for PR1259. 
llvm-svn: 37273
 2007-05-21 23:30:33 +00:00
Evan Cheng 8c8afb27d7 Fix some -march=thumb regressions. tBR_JTr is not predicable. 
llvm-svn: 37272
 2007-05-21 23:17:32 +00:00
Dale Johannesen d1de276c16 Use AXI3 not AXI2 for appropriate PIC PC-relative loads and stores. Cosmetic. 
llvm-svn: 37271
 2007-05-21 22:42:04 +00:00
Evan Cheng e26c0916a3 If-convert early exit blocks (returns, etc.); bug fixes, etc. 
llvm-svn: 37270
 2007-05-21 22:22:58 +00:00
Dale Johannesen 7d55f3733e Add some patterns for PIC PC-relative loads and stores. 
llvm-svn: 37269
 2007-05-21 22:14:33 +00:00
Evan Cheng 147b334b6a BlockHasNoFallThrough() now returns true if block ends with a return instruction; AnalyzeBranch() should ignore predicated instructionsd. 
llvm-svn: 37268
 2007-05-21 18:56:31 +00:00
Duncan Sands 34e82a4508 Only emit one entry in the exception action table for each action, even if 
it occurs for multiple landing pads.

llvm-svn: 37267
 2007-05-21 18:50:28 +00:00
Evan Cheng fc94eb66d2 BlockHasNoFallThrough() now returns true if block ends with a return instruction. 
llvm-svn: 37266
 2007-05-21 18:44:17 +00:00
Bill Wendling ee854630e4 Update 
llvm-svn: 37265
 2007-05-20 19:56:24 +00:00
Reid Spencer e44b45e757 Get the order of the hext digits right! 
llvm-svn: 37261
 2007-05-19 14:44:42 +00:00
Reid Spencer 6473fb7916 Adjust how LLVM names are produced: 
1. Always use % for local and @ for global.
2. Replace NameNeedsQuotes with QuoteNameIfNeeded so that any adjustments
   to the name can be done in one pass.
3. Implement generation of hex escapes so we don't get "wonky" characters
   in the output.

llvm-svn: 37260
 2007-05-19 07:25:21 +00:00
Reid Spencer be9b3fce8a Make sure we can round-trip an escaped value in a name. 
llvm-svn: 37259
 2007-05-19 07:22:24 +00:00
Reid Spencer 21526d6b56 Regenerate 
llvm-svn: 37258
 2007-05-19 07:22:10 +00:00
Reid Spencer aba0cc7173 Make the %"..." syntax legal for local name. This just makes it symmetric 
with global names which can already be @"..."

llvm-svn: 37257
 2007-05-19 07:21:26 +00:00
Chris Lattner a655a157a0 Fix Transforms/InstCombine/2007-05-18-CastFoldBug.ll, a bug that devastates 
objc code due to the way the FE lowers objc message sends.

llvm-svn: 37256
 2007-05-19 06:51:32 +00:00
Chris Lattner faa31904e4 new testcase 
llvm-svn: 37255
 2007-05-19 06:50:37 +00:00
Reid Spencer 80fcb754d9 On Linux platforms and at optimization levels -O1 and above, llvm-gcc can 
turn "putchar" calls into _IO_putc calls which is a lower-level interface.
This patch allows these calls to be executed by lli in interpreter mode.

llvm-svn: 37254
 2007-05-19 01:36:17 +00:00
Chris Lattner 0306944992 add source 
llvm-svn: 37253
 2007-05-19 01:22:52 +00:00
Chris Lattner e8bd53c36a Handle negative strides much more optimally. This compiles X86/lsr-negative-stride.ll 
into:

_t:
        movl 8(%esp), %ecx
        movl 4(%esp), %eax
        cmpl %ecx, %eax
        je LBB1_3       #bb17
LBB1_1: #bb
        cmpl %ecx, %eax
        jg LBB1_4       #cond_true
LBB1_2: #cond_false
        subl %eax, %ecx
        cmpl %ecx, %eax
        jne LBB1_1      #bb
LBB1_3: #bb17
        ret
LBB1_4: #cond_true
        subl %ecx, %eax
        cmpl %ecx, %eax
        jne LBB1_1      #bb
        jmp LBB1_3      #bb17

instead of:

_t:
        subl $4, %esp
        movl %esi, (%esp)
        movl 12(%esp), %ecx
        movl 8(%esp), %eax
        cmpl %ecx, %eax
        je LBB1_4       #bb17
LBB1_1: #bb.outer
        movl %ecx, %edx
        negl %edx
LBB1_2: #bb
        cmpl %ecx, %eax
        jle LBB1_5      #cond_false
LBB1_3: #cond_true
        addl %edx, %eax
        cmpl %ecx, %eax
        jne LBB1_2      #bb
LBB1_4: #bb17
        movl (%esp), %esi
        addl $4, %esp
        ret
LBB1_5: #cond_false
        movl %ecx, %edx
        subl %eax, %edx
        movl %eax, %esi
        addl %esi, %esi
        cmpl %ecx, %esi
        je LBB1_4       #bb17
LBB1_6: #cond_false.bb.outer_crit_edge
        movl %edx, %ecx
        jmp LBB1_1      #bb.outer

llvm-svn: 37252
 2007-05-19 01:22:21 +00:00
Chris Lattner afa90dc355 new testcase 
llvm-svn: 37251
 2007-05-19 01:21:39 +00:00
Chris Lattner 1fa8276e70 same patch as the previous one, but the symmetric case 
llvm-svn: 37249
 2007-05-19 00:46:51 +00:00
Chris Lattner b08cbbd737 Disable the (A == (B-A)) -> 2*A == B xform when the sub has multiple uses (in 
this case, the xform introduces an extra operation).  This compiles
PowerPC/compare-duplicate.ll into:

_test:
        subf r2, r3, r4
        cmplw cr0, r2, r3
        bne cr0, LBB1_2 ;F

instead of:

_test:
        slwi r2, r3, 1
        subf r3, r3, r4
        cmplw cr0, r4, r2
        bne cr0, LBB1_2 ;F

This is target independent of course.

llvm-svn: 37246
 2007-05-19 00:43:44 +00:00
Chris Lattner bde968823a new testcase 
llvm-svn: 37245
 2007-05-19 00:41:40 +00:00
Reid Spencer b6af1aae35 Fix an assertion introduced by my last change to the toString method. We 
can't use getZExtValue() to extract the low order bits for each digit.
Instead, we need to access the low order word directly.

llvm-svn: 37242
 2007-05-19 00:29:55 +00:00
Dan Gohman c12dd5207d Apply this patch: 
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070514/049845.html

llvm-svn: 37240
 2007-05-18 23:21:46 +00:00
Chris Lattner 7ea2df6e2a add a note 
llvm-svn: 37239
 2007-05-18 20:18:14 +00:00
Dan Gohman 6164a1b279 Add a testcase for unrolling loops with unknown tripcounts. 
llvm-svn: 37238
 2007-05-18 19:59:23 +00:00
Evan Cheng 018cffbca4 Clean up. 
llvm-svn: 37237
 2007-05-18 19:32:08 +00:00
Evan Cheng faaf716540 Change to depth-first traversal. 
llvm-svn: 37236
 2007-05-18 19:26:33 +00:00
Dale Johannesen dafda82755 Document an inefficiency in tail merging. 
llvm-svn: 37235
 2007-05-18 18:46:40 +00:00
Dan Gohman eefa83e67b Use MVT::FIRST_VECTOR_VALUETYPE and MVT::LAST_VECTOR_VALUETYPE. 
llvm-svn: 37234
 2007-05-18 18:44:07 +00:00
Dan Gohman b539df3389 Qualify calls to getTypeForValueType with MVT:: too. 
llvm-svn: 37233
 2007-05-18 18:41:29 +00:00
Evan Cheng 2e82cefd24 Some restructuring in preparation for most aggressive if-conversion. 
llvm-svn: 37231
 2007-05-18 18:14:37 +00:00
Dan Gohman 1796f1f8e9 Qualify several calls to functions in the MVT namespace, for consistency. 
llvm-svn: 37230
 2007-05-18 17:52:13 +00:00
Evan Cheng f25d3a5d73 Watch out for blocks that end with a return. 
llvm-svn: 37227
 2007-05-18 17:06:53 +00:00
Duncan Sands 76256a069c Fix typo. 
llvm-svn: 37224
 2007-05-18 12:13:34 +00:00
Duncan Sands ea7a326468 Fix typo. 
llvm-svn: 37223
 2007-05-18 09:04:20 +00:00
Chris Lattner 3d1937591d better portability for intptr_t. 
llvm-svn: 37221
 2007-05-18 07:07:05 +00:00
Chris Lattner feadc1ebdc finished the first draft 
llvm-svn: 37219
 2007-05-18 06:38:51 +00:00
Chris Lattner 727c3740e4 crank out notes 
llvm-svn: 37218
 2007-05-18 06:33:02 +00:00
Reid Spencer ac1c2d93f1 Regenerate. 
llvm-svn: 37207
 2007-05-18 05:48:07 +00:00
Chris Lattner 6d84cdcfee validation fix 
llvm-svn: 37206
 2007-05-18 05:38:44 +00:00
Chris Lattner 5538349a7c validation fixes 
llvm-svn: 37205
 2007-05-18 05:36:14 +00:00
Chris Lattner 9eeada9470 Fix PR1434 and test/Linker/link-archive.ll, this is a regression from 1.9. 
llvm-svn: 37204
 2007-05-18 04:02:46 +00:00
Reid Spencer 7aed8fccfd Add a test case for PR1434 
llvm-svn: 37203
 2007-05-18 03:46:50 +00:00
Reid Spencer d266c18c0e Avoid an infinite loop when TestRunner.sh is run outside of the test dir. 
llvm-svn: 37201
 2007-05-18 02:06:03 +00:00
Evan Cheng 478b805956 If true / false blocks fallthrough before ifcvt, add unconditional branches to ifcvt'd block. 
llvm-svn: 37200
 2007-05-18 01:55:58 +00:00
Evan Cheng 4ae1840d21 Mark calls non-predicable for now. Need to ensure it's the last instruction in the if-converted block or make sure it preserve condition code. 
llvm-svn: 37199
 2007-05-18 01:53:54 +00:00
Dale Johannesen f8956178af Remove some unneeded branches. (spotted by Evan, thanks) 
llvm-svn: 37198
 2007-05-18 01:28:58 +00:00
Evan Cheng ea623560f8 Silence some compilation warnings. 
llvm-svn: 37197
 2007-05-18 01:19:57 +00:00
Chris Lattner e0c1df4919 tweak 
llvm-svn: 37196
 2007-05-18 00:44:29 +00:00
Evan Cheng 0f745da4fe Make use of target specific block size limits; bug fixes. 
llvm-svn: 37195
 2007-05-18 00:20:58 +00:00
Evan Cheng 6addd65914 Set ARM if-conversion block size threshold to 10 instructions for now. 
llvm-svn: 37194
 2007-05-18 00:19:34 +00:00
Evan Cheng e20dd92792 RemoveBranch() and InsertBranch() now returns number of instructions deleted / inserted. 
llvm-svn: 37193
 2007-05-18 00:18:17 +00:00
Evan Cheng 99be49dd9b RemoveBranch() and InsertBranch() now returns number of instructions deleted / inserted. 
llvm-svn: 37192
 2007-05-18 00:05:48 +00:00
Evan Cheng c0dc382fb7 Fix comment. 
llvm-svn: 37191
 2007-05-18 00:00:30 +00:00
Evan Cheng a92b2b38ff Move isSuccessor() offline, change it to use std::find. 
llvm-svn: 37190
 2007-05-17 23:58:53 +00:00
Reid Spencer 07aa66887c Fix a problem with building .y files when BISON is not present. 
Merged from the release_20 branch.

llvm-svn: 37188
 2007-05-17 22:51:35 +00:00
Devang Patel 2c30a37a5c Fix PR1431 
Test case at Transformations/SCCP/2007-05-16-InvokeCrash.ll

llvm-svn: 37185
 2007-05-17 22:10:15 +00:00
Devang Patel f9ed308aba New test. 
llvm-svn: 37184
 2007-05-17 22:05:20 +00:00
Chris Lattner 6fd9b5e816 validation fixes 
llvm-svn: 37183
 2007-05-17 22:03:43 +00:00
Chris Lattner 2f131fe30d llvm-gcc now supports almost all gcc extensions. The key missing one is 
builtin_apply.

llvm-svn: 37182
 2007-05-17 22:02:24 +00:00
Chris Lattner 8ce1ba466f add a section about API changes. 
llvm-svn: 37181
 2007-05-17 21:41:31 +00:00
Dale Johannesen 58698d2534 More effective breakdown of memcpy into repeated load/store. These are now 
in the order lod;lod;lod;sto;sto;sto which means the load-store optimizer
has a better chance of producing ldm/stm.  Ideally you would get cooperation
from the RA as well but this is not there yet.

llvm-svn: 37179
 2007-05-17 21:31:21 +00:00
Dan Gohman 99ec2d88fb Correct a name in a comment. 
llvm-svn: 37178
 2007-05-17 21:30:39 +00:00
Chris Lattner e1047b2cfe silence some "comparison between signed and unsigned integer expressions" 
warnings

llvm-svn: 37177
 2007-05-17 20:01:40 +00:00
Chris Lattner 70c2175ed2 minor tweak 
llvm-svn: 37176
 2007-05-17 19:58:57 +00:00
Reid Spencer 5c138133b7 Get rid of leading zeros in the output of toString. 
llvm-svn: 37175
 2007-05-17 19:23:02 +00:00
Evan Cheng 0465aca5d2 New test case. 
llvm-svn: 37174
 2007-05-17 18:49:50 +00:00