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Author SHA1 Message Date
Anton Korobeynikov 2d1e7321f6 Fix code emission for conditional branches. 
Patch by Collin Winter!

llvm-svn: 70898
 2009-05-04 19:10:38 +00:00
Dan Gohman 3f02595048 Use true instead of 1 for a boolean value. And fix a copy+pasto 
in a comment.

llvm-svn: 70882
 2009-05-04 17:25:21 +00:00
Dan Gohman 630f4e1eb3 Trim unnecessary #includes. 
llvm-svn: 70880
 2009-05-04 17:11:06 +00:00
Duncan Sands 50c70336b0 Teach capture tracking that readonly functions can 
only capture their arguments by returning them or
throwing an exception or not based on the argument
value.  Patch essentially by Frits van Bommel.

llvm-svn: 70876
 2009-05-04 16:50:29 +00:00
Chris Lattner fa552d728d fix some problems spotted by Duncan and Nicolas Geoffray 
llvm-svn: 70872
 2009-05-04 16:29:24 +00:00
Argyrios Kyrtzidis 9ae29b2d8f -Remove the DwarfWriter::RecordSourceLine calls from the instruction selectors. 
-Depend on DebugLocs for source line info.

(Comes with Regression-Be-Gone(tm))

llvm-svn: 70871
 2009-05-04 16:23:49 +00:00
Evan Cheng 3f77805642 Make sure to color with only allocatable registers for the specific register class. 
llvm-svn: 70821
 2009-05-04 03:30:11 +00:00
Chris Lattner d579cb1167 * Sink 4 duplicates of edge threading validity checks and DOUT prints into 
ThreadEdge directly.  This shares the code, but is just a refactoring.
* Make JumpThreading compute the set of loop headers and avoid threading
  across them.  This prevents jump threading from forming irreducible 
  loops (goodness) but also prevents it from threading in other cases that
  are beneficial (see the comment above FindFunctionBackedges).

llvm-svn: 70820
 2009-05-04 02:28:08 +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
Evan Cheng 4b6072bcb8 The stack slots which share the same stack slot after coloring can, but do not have to, use the same register. In fact, they each may have different register class requirements. 
llvm-svn: 70815
 2009-05-04 00:24:50 +00:00
Argyrios Kyrtzidis 79be34012f Revert r70803 for now, it causes a regression. 
llvm-svn: 70811
 2009-05-03 23:27:19 +00:00
Argyrios Kyrtzidis ce7196b903 -Remove the DwarfWriter::RecordSourceLine calls from the instruction selectors. 
-Depend on DebugLocs for source line info.

llvm-svn: 70803
 2009-05-03 22:03:35 +00:00
Evan Cheng 1de5cf548e Typo. 
llvm-svn: 70792
 2009-05-03 19:10:11 +00:00
Evan Cheng 210fc62a91 In some rare cases, the register allocator can spill registers but end up not utilizing registers at all. The fundamental problem is linearscan's backtracking can end up freeing more than one allocated registers. However, reloads and restores might be folded into uses / defs and freed registers might not be used at all. 
VirtRegMap keeps track of allocations so it knows what's not used. As a horrible hack, the stack coloring can color spill slots with *free* registers. That is, it replace reload and spills with copies from and to the free register. It unfold instructions that load and store the spill slot and replace them with register using variants.

Not yet enabled. This is part 1. More coming.

llvm-svn: 70787
 2009-05-03 18:32:42 +00:00
Anton Korobeynikov 4ff60e0cc2 Handle implicit zext in a better way. Shamelessly stolen from x86 backend. 
Thanks for Dan Gohman for suggestion!

llvm-svn: 70782
 2009-05-03 15:50:18 +00:00
Anton Korobeynikov 2745bc92fa Fix typo 
llvm-svn: 70770
 2009-05-03 13:19:57 +00:00
Anton Korobeynikov 1324f810d7 Update due to mainline API change 
llvm-svn: 70769
 2009-05-03 13:19:42 +00:00
Anton Korobeynikov d089ef1003 Add TODO list :) 
llvm-svn: 70768
 2009-05-03 13:19:24 +00:00
Anton Korobeynikov 47fcd72e24 Make handling of conditional stuff much more straightforward 
llvm-svn: 70767
 2009-05-03 13:19:09 +00:00
Anton Korobeynikov dedfa00ba1 Temporary disable imm patterns for cmp. Actually, all cmp-related stuff (select_cc, setcc, br_cc). needs to be rethought 
llvm-svn: 70766
 2009-05-03 13:18:50 +00:00
Anton Korobeynikov eb2152f753 Expand divisions into libcalls 
llvm-svn: 70765
 2009-05-03 13:18:33 +00:00
Anton Korobeynikov 05b7a7c8f8 Properly handle sdiv / udiv / srem / urem libcalls 
llvm-svn: 70764
 2009-05-03 13:18:16 +00:00
Anton Korobeynikov 29747e9c26 Custom lower SIGN_EXTEND 
llvm-svn: 70763
 2009-05-03 13:17:49 +00:00
Anton Korobeynikov 3c48ea7dbe Some eye-candy 
llvm-svn: 70762
 2009-05-03 13:17:31 +00:00
Anton Korobeynikov 48e21c57f1 Print function header / footer 
llvm-svn: 70761
 2009-05-03 13:17:11 +00:00
Anton Korobeynikov 8847e3e554 Fix printing: je => jeq 
llvm-svn: 70760
 2009-05-03 13:16:54 +00:00
Anton Korobeynikov f3a6bc8562 Add 8bit shifts 
llvm-svn: 70759
 2009-05-03 13:16:37 +00:00
Anton Korobeynikov 61763b532a Handle logical shift right (at least I hope so :) ) 
llvm-svn: 70758
 2009-05-03 13:16:17 +00:00
Anton Korobeynikov 20a91130ce Handle anyext 
llvm-svn: 70757
 2009-05-03 13:15:57 +00:00
Anton Korobeynikov e31559576f Expand all sorts of indirect branches 
llvm-svn: 70755
 2009-05-03 13:15:40 +00:00
Anton Korobeynikov 41917df643 Add InsertBranch() hook for tail mergeing 
llvm-svn: 70754
 2009-05-03 13:15:22 +00:00
Anton Korobeynikov 4b0a0f18fb Implement bswap 
llvm-svn: 70753
 2009-05-03 13:15:03 +00:00
Anton Korobeynikov ba0e81d4b2 Properly handle ExternalSymbol's 
llvm-svn: 70752
 2009-05-03 13:14:46 +00:00
Anton Korobeynikov de60d1caef Expand muls (all mulls!) to libcalls for now 
llvm-svn: 70751
 2009-05-03 13:14:25 +00:00
Anton Korobeynikov 399ad444fd Proper name 16 bit libcalls 
llvm-svn: 70750
 2009-05-03 13:14:08 +00:00
Anton Korobeynikov f3fc92d6fc Add libcall expansion for 16 and 128 bit muls 
llvm-svn: 70749
 2009-05-03 13:13:51 +00:00
Anton Korobeynikov 0da755ee3e Provide addc and subc 
llvm-svn: 70748
 2009-05-03 13:13:34 +00:00
Anton Korobeynikov a3f7a83ad8 Add left shift 
llvm-svn: 70747
 2009-05-03 13:13:17 +00:00
Anton Korobeynikov aa43d0b182 Add direct branch 
llvm-svn: 70746
 2009-05-03 13:12:58 +00:00
Anton Korobeynikov 24bfb51416 It's error-prone to maintain two separate variants of asmprinting stuff, one of which is even used. Drop second (aka 'intel') variant of operands. It can be added later, if needed. 
llvm-svn: 70745
 2009-05-03 13:12:37 +00:00
Anton Korobeynikov b6321e15f7 Lower select with custom inserted and make condjumps generic 
llvm-svn: 70744
 2009-05-03 13:12:23 +00:00
Anton Korobeynikov 962720129d Add first draft for conditions, conditional branches, etc 
llvm-svn: 70743
 2009-05-03 13:12:06 +00:00
Anton Korobeynikov aa51bff808 Hanle i8 returns 
llvm-svn: 70742
 2009-05-03 13:11:48 +00:00
Anton Korobeynikov 7212c15e70 Small tweaking 
llvm-svn: 70741
 2009-05-03 13:11:35 +00:00
Anton Korobeynikov f2b50994ca Add prologue/epilogue emission. Fix frame pointer handling. 
llvm-svn: 70740
 2009-05-03 13:11:20 +00:00
Anton Korobeynikov 1af0b61e7c Add code for save/restore of callee-saved registers 
llvm-svn: 70739
 2009-05-03 13:11:04 +00:00
Anton Korobeynikov b85f4ec819 Two more hooks for RA and FP registers 
llvm-svn: 70738
 2009-05-03 13:10:40 +00:00
Anton Korobeynikov 7784ae9a6f Proper handle loading of effective address of stack slot stuff 
llvm-svn: 70737
 2009-05-03 13:10:26 +00:00
Anton Korobeynikov 0d1234fd69 Match frame indexes 
llvm-svn: 70736
 2009-05-03 13:10:11 +00:00
Anton Korobeynikov f6af822c76 First draft of stack slot loads / stores lowering 
llvm-svn: 70735
 2009-05-03 13:09:57 +00:00
Anton Korobeynikov ed65671768 Reverse order of memory arguments 
llvm-svn: 70734
 2009-05-03 13:09:40 +00:00
Anton Korobeynikov 04888305f6 Remove bogus pattern 
llvm-svn: 70733
 2009-05-03 13:09:24 +00:00
Anton Korobeynikov 6399a3d628 Correct asmprinting of memory operands 
llvm-svn: 70732
 2009-05-03 13:09:10 +00:00
Anton Korobeynikov a3bce28ae0 Match wrapper node for address 
llvm-svn: 70731
 2009-05-03 13:08:51 +00:00
Anton Korobeynikov cfc97056e7 Add lowering for global address nodes. Not pretty efficient though. 
llvm-svn: 70730
 2009-05-03 13:08:33 +00:00
Anton Korobeynikov b5613928f5 Some early full call lowering draft for direct calls 
llvm-svn: 70729
 2009-05-03 13:08:13 +00:00
Anton Korobeynikov ec3f0b3f9d Add call frame setup instruction elimination and lowerid for bunch of call-related stuff. 
llvm-svn: 70728
 2009-05-03 13:07:54 +00:00
Anton Korobeynikov 5613510c81 Add CALL lowering. 
llvm-svn: 70727
 2009-05-03 13:07:31 +00:00
Anton Korobeynikov c995ddd017 Add bunch of mem-whatever patterns 
llvm-svn: 70726
 2009-05-03 13:07:10 +00:00
Anton Korobeynikov f702a0085c Add bunch of reg-mem inst patterns 
llvm-svn: 70725
 2009-05-03 13:06:46 +00:00
Anton Korobeynikov ed1c3dfa0f Add normal and trunc stores 
llvm-svn: 70724
 2009-05-03 13:06:26 +00:00
Anton Korobeynikov 31ecd23a9e Basic support for mem=>reg moves 
llvm-svn: 70723
 2009-05-03 13:06:03 +00:00
Anton Korobeynikov 80a73e7d8b Add 8-bit insts. zext behaviour is not modelled yet 
llvm-svn: 70722
 2009-05-03 13:05:42 +00:00
Anton Korobeynikov b900245e13 Add 8-bit regclass and pattern for sext_inreg 
llvm-svn: 70721
 2009-05-03 13:05:22 +00:00
Anton Korobeynikov b638fb10f5 Add pattern for OR 
llvm-svn: 70720
 2009-05-03 13:05:00 +00:00
Anton Korobeynikov 654cb0a761 Add reg-imm variants 
llvm-svn: 70719
 2009-05-03 13:04:41 +00:00
Anton Korobeynikov 37709c3584 Add hint to nop 
llvm-svn: 70718
 2009-05-03 13:04:23 +00:00
Anton Korobeynikov 6339db830e Add more instructions 
llvm-svn: 70717
 2009-05-03 13:04:06 +00:00
Anton Korobeynikov e32c817d2c Cleanup 
llvm-svn: 70716
 2009-05-03 13:03:50 +00:00
Anton Korobeynikov 15a515b1af Add dummy lowering for shifts 
llvm-svn: 70715
 2009-05-03 13:03:33 +00:00
Anton Korobeynikov 55a085b539 We don't have any div at all - thus mark it as expensive 
llvm-svn: 70714
 2009-05-03 13:03:14 +00:00
Anton Korobeynikov abb51755c8 We're not going to spend 100% of time in interrupts, do we? :) 
llvm-svn: 70713
 2009-05-03 13:02:57 +00:00
Anton Korobeynikov 8a17dff7d0 Add simple reg-reg add. 
llvm-svn: 70712
 2009-05-03 13:02:39 +00:00
Anton Korobeynikov 6ff6fc95a0 gas uses lower letter for register names 
llvm-svn: 70711
 2009-05-03 13:02:22 +00:00
Anton Korobeynikov d7afd69e3b Add code enough for emission of reg-reg and reg-imm moves. This allows us to compile "ret i16 0" properly! 
llvm-svn: 70710
 2009-05-03 13:02:04 +00:00
Anton Korobeynikov c942782b3b Add function body printing routine 
llvm-svn: 70709
 2009-05-03 13:01:41 +00:00
Anton Korobeynikov ef811d8e05 Add 'msp430' target triple recognizer 
llvm-svn: 70708
 2009-05-03 13:01:23 +00:00
Anton Korobeynikov a9b7df98e6 Make emit{Prologue,Epilogue}() noop for now 
llvm-svn: 70707
 2009-05-03 13:01:04 +00:00
Anton Korobeynikov 69f51f0b41 Add callee-saved regs & reg classes getter hooks 
llvm-svn: 70706
 2009-05-03 13:00:46 +00:00
Anton Korobeynikov efcd5aa381 Add simple FP indicator for given function hook 
llvm-svn: 70705
 2009-05-03 13:00:28 +00:00
Anton Korobeynikov c10f98ace3 Provide set of reserved registers 
llvm-svn: 70704
 2009-05-03 13:00:11 +00:00
Anton Korobeynikov 7bfc3ea2ee Add proper ISD::RET lowering 
llvm-svn: 70703
 2009-05-03 12:59:50 +00:00
Anton Korobeynikov 3849be6ca1 Add first draft of MSP430 calling convention stuff and draft of ISD::FORMAL_ARGUMENTS node lowering. 
llvm-svn: 70702
 2009-05-03 12:59:33 +00:00
Anton Korobeynikov 77e5a11ec2 Fix register names, fix register allocation order, handle frame pointer. 
llvm-svn: 70701
 2009-05-03 12:59:16 +00:00
Anton Korobeynikov 64717bbc14 Clearify the usage and add some debug stuff 
llvm-svn: 70700
 2009-05-03 12:58:58 +00:00
Anton Korobeynikov e10f69a8a7 Cleanup 
llvm-svn: 70699
 2009-05-03 12:58:40 +00:00
Anton Korobeynikov 128e8a188f Add cmake script. No idea whether it works or not :) 
llvm-svn: 70698
 2009-05-03 12:58:22 +00:00
Anton Korobeynikov 4130a7c1e7 Add a note 
llvm-svn: 70697
 2009-05-03 12:58:05 +00:00
Anton Korobeynikov 7c4db99df3 Typo 
llvm-svn: 70695
 2009-05-03 12:57:47 +00:00
Anton Korobeynikov 101380015c Dummy MSP430 backend 
llvm-svn: 70694
 2009-05-03 12:57:15 +00:00
Argyrios Kyrtzidis 97324cec99 -Move the DwarfWriter::ValidDebugInfo check to a static DIDescriptor::ValidDebugInfo 
-Create DebugLocs without the need to have a DwarfWriter around

llvm-svn: 70682
 2009-05-03 08:50:41 +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
Nick Lewycky 431f97e4f0 Revert r70630. Go back to appending ".b" to internal globals when shrinking 
them to bool.

llvm-svn: 70653
 2009-05-03 03:49:08 +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 745ad4486e Apply Jeffrey Yasskin's CallbackVH patch, with minor tweaks from me 
to make the copy constructor and destructor protected, and corresponding
adjustments to the unittests.

llvm-svn: 70644
 2009-05-02 21:10:48 +00:00
Dan Gohman b17dcbdadc The second argument to RecursivelyDeleteTriviallyDeadInstructions has 
a default value, and will hopefully be going away soon.

llvm-svn: 70642
 2009-05-02 20:22:10 +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
Dan Gohman f150572af7 When ScalarEvolution is told to forget the trip count for a loop, have 
it also forget any SCEVs associated with loop-header PHIs in the loop,
as they may be dependent on trip count information.

llvm-svn: 70633
 2009-05-02 17:43:35 +00:00
Dan Gohman c27345f0b4 Tell ScalarEvolution that the loop is being deleted before actually 
deleting it.  This will let ScalarEvolution be more complete about
updating its records.

llvm-svn: 70632
 2009-05-02 17:29:26 +00:00
Nick Lewycky 462cd34332 Don't append ".b" to the names of globals that are being shrunk to booleans. 
llvm-svn: 70630
 2009-05-02 16:21:50 +00:00
Dan Gohman 6409e7d4e9 Don't split critical edges during the AddUsersIfInteresting phase 
of LSR. This makes the AddUsersIfInteresting phase of LSR a pure
analysis instead of a phase that potentially does CFG modifications.

The conditions where this code would actually perform a split are
rare, and in the cases where it actually would do a split the split
is usually undone by CodeGenPrepare, and in cases where splits
actually survive into codegen, they appear to hurt more often than
they help.

llvm-svn: 70625
 2009-05-02 05:36:01 +00:00
Chris Lattner e01821edbd 'The attached patch fixes an issue where llc -march=cpp fails with 
"Invalid primitive type" on input containing the x86_fp80 type.'
Patch by Collin Winter!

llvm-svn: 70610
 2009-05-01 23:54:26 +00:00
Dan Gohman 410b4fdceb Change the description string of the LoopInfo pass. 
"Construction" makes it sound like a pass that might
modify the CFG to construct natural loops.

llvm-svn: 70580
 2009-05-01 21:58:05 +00:00
Bob Wilson 62a3124fb8 Allow CONCAT_VECTORS nodes to be legal or have custom lowering for some targets. 
Changes to take advantage of this will come later.

llvm-svn: 70560
 2009-05-01 17:55:32 +00:00
Dan Gohman d195a22e51 Actually insert inserted instructions into the InsertedValues map. 
llvm-svn: 70557
 2009-05-01 17:13:31 +00:00
Dan Gohman 65dbe7874f Make RequiresTypeConversion canonicalize the types before calling the 
target hooks canLosslesslyBitCastTo and isTruncateFree. This allows
targets to avoid worrying about handling all combinations of integer
and pointer types.

llvm-svn: 70555
 2009-05-01 17:07:43 +00:00
Dan Gohman 7227bc88f0 When printing a SCEVUnknown with pointer type, don't print an 
artificial "ptrtoint", as it tends to clutter up complicated
expressions. The cast operators now print both source and
destination types, which is usually sufficient.

llvm-svn: 70554
 2009-05-01 17:02:22 +00:00
Dan Gohman 150b4c3890 Short-circuit inttoptr-ptrtoint constant expressions; these aren't 
always folded by the regular constant folder because it doesn't have
TargetData information.

llvm-svn: 70553
 2009-05-01 17:00:00 +00:00
Dan Gohman d3aa4215ef Minor whitespace fix. 
llvm-svn: 70551
 2009-05-01 16:56:32 +00:00
Dan Gohman 90f73564d0 Fix an 80-column violation. 
llvm-svn: 70550
 2009-05-01 16:44:56 +00:00
Dan Gohman 194e42c612 When creating cast scevs, canonicalize the destination type. This 
avoids duplicate scevs that differ only in type.

llvm-svn: 70549
 2009-05-01 16:44:18 +00:00
Dan Gohman 6be8530158 Fix some code to work if TargetLowering is not available. 
llvm-svn: 70546
 2009-05-01 16:29:14 +00:00
Bill Wendling 80b9abf8f4 Simplify more code and add timer stuff. 
llvm-svn: 70539
 2009-05-01 08:40:06 +00:00
Bill Wendling 03968bd796 Simplify more code. 
llvm-svn: 70537
 2009-05-01 08:35:12 +00:00
Torok Edwin 83aec26ef8 hasSCEV() was declared in ScalarEvolution.h, but never defined. This must have 
gone lost during the pImpl conversion.

llvm-svn: 70536
 2009-05-01 08:33:47 +00:00
Bill Wendling 87cbaf4bc9 Simplify some code. 
llvm-svn: 70534
 2009-05-01 08:32:14 +00:00
Bill Wendling 1c24c74495 Fix whitespace. It was confusing me. 
llvm-svn: 70533
 2009-05-01 08:25:13 +00:00
Evan Cheng f8949a61bf Code clean up. Bye bye PhysRegTracker. 
llvm-svn: 70524
 2009-05-01 01:03:49 +00:00
Argyrios Kyrtzidis 31af617924 Fix compilation for some targets other than x86. 
llvm-svn: 70522
 2009-04-30 23:50:26 +00:00
Argyrios Kyrtzidis a5037484a4 Make DebugLoc independent of DwarfWriter. 
-Replace DebugLocTuple's Source ID with CompileUnit's GlobalVariable*
-Remove DwarfWriter::getOrCreateSourceID
-Make necessary changes for the above (fix callsites, etc.)

llvm-svn: 70520
 2009-04-30 23:22:31 +00:00
Argyrios Kyrtzidis 30481e275c Set FnEnd in JITEmitter::finishFunction to point strictly to the end of function's machine code. 
Don't include memory allocated for global variables during relocations resolution.

llvm-svn: 70517
 2009-04-30 23:01:58 +00:00
Jakob Stoklund Olesen 050631c0a6 Join cross class copies using getCommonSubClass() 
llvm-svn: 70513
 2009-04-30 21:24:03 +00:00
Jakob Stoklund Olesen e651f25a7b getCommonSubClass() - Calculate the largest common sub-class of two register 
classes.

This is implemented as a function rather than a method on TargetRegisterClass
because it is symmetric in its arguments.

llvm-svn: 70512
 2009-04-30 21:23:32 +00:00
Dan Gohman fa066ef136 Add some comments, and tidy up some whitespace. 
llvm-svn: 70510
 2009-04-30 20:48:53 +00:00
Dan Gohman 2b8da35f9d Extend ScalarEvolution's getBackedgeTakenCount to be able to 
compute an upper-bound value for the trip count, in addition to
the actual trip count. Use this to allow getZeroExtendExpr and
getSignExtendExpr to fold casts in more cases.

This may eventually morph into a more general value-range
analysis capability; there are certainly plenty of places where
more complete value-range information would allow more folding.

llvm-svn: 70509
 2009-04-30 20:47:05 +00:00
Evan Cheng 007cbe91c5 Add a smarter heuristic to determine when to coalesce a virtual register with a physical one. More specifically, it avoid tying a virtual register in the loop with a physical register defined / used outside the loop. When it determines it's not profitable, it will use the physical register as the allocation preference instead. 
This is *not* turned on by default. Testing indicates this is just as likely to pessimize code. The main issue seems to be allocation preference doesn't work effectively. That will change once I've taught register allocator "swapping".

llvm-svn: 70503
 2009-04-30 18:39:57 +00:00
Dan Gohman 4bafc42185 Don't try to mix integers and pointers in an icmp instruction 
in getSCEVAtScope.

llvm-svn: 70495
 2009-04-30 16:40:30 +00:00
Jay Foad fe0c648fee Move helper functions for optimizing division by constant into the APInt 
class.

llvm-svn: 70488
 2009-04-30 10:15:35 +00:00
Dan Gohman db3a57ec5c Set mayLoad on MOVZX32_NOREXrm8 too. 
llvm-svn: 70466
 2009-04-30 03:11:48 +00:00
Dan Gohman 7216b9da5f Fix ScalarEvolution::print to print a value for any Instruction with 
a SCEVable type, not just integer types.

llvm-svn: 70463
 2009-04-30 01:30:18 +00:00
Evan Cheng 99578674fd Mark MOV8mr_NOREX and MOV8rm_NOREX as mayStore / mayLoad respectively. 
llvm-svn: 70461
 2009-04-30 00:58:57 +00:00
Chris Lattner 5ab42e93c4 fix a regression handling indirect results: these need to be considered 
memory operands otherwise the writebacks get lost when the inline asm 
doesn't otherwise have side effects.  This fixes rdar://6839427, though
clang really shouldn't generate these anymore.

llvm-svn: 70455
 2009-04-30 00:48:50 +00:00
Bill Wendling 352ee2cb05 Fix the JIT bindings for ocaml. 
llvm-svn: 70454
 2009-04-30 00:43:39 +00:00
Chris Lattner 1fba01bbcd remove progname which is never set. PR4085 
llvm-svn: 70453
 2009-04-30 00:24:33 +00:00
Bill Wendling 026e5d7667 Instead of passing in an unsigned value for the optimization level, use an enum, 
which better identifies what the optimization is doing. And is more flexible for
future uses.

llvm-svn: 70440
 2009-04-29 23:29:43 +00:00
Bill Wendling db59fda319 Add support for a character after a command line option. Like '-Os'. 
llvm-svn: 70437
 2009-04-29 23:26:16 +00:00
Dale Johannesen f4031bd01e Print correct instruction in dump. 
llvm-svn: 70427
 2009-04-29 22:57:20 +00:00
Nate Begeman 7e6e352735 Fix infinite recursion in the C++ code which handles movddup by making it unnecessary. 
llvm-svn: 70425
 2009-04-29 22:47:44 +00:00
Dan Gohman 0098d01ef9 Implement getSCEVAtScope for SCEV cast expressions. 
llvm-svn: 70422
 2009-04-29 22:29:01 +00:00
Dan Gohman 494dac3f84 Generalize the cast-of-addrec folding to handle folding of SCEVs like 
(sext i8 {-128,+,1} to i64) to i64 {-128,+,1}, where the iteration
crosses from negative to positive, but is still safe if the trip
count is within range.

llvm-svn: 70421
 2009-04-29 22:28:28 +00:00
Dan Gohman 8ddd0b3599 Reword and tidy up some comments. 
llvm-svn: 70416
 2009-04-29 22:01:05 +00:00
Jakob Stoklund Olesen 1971dc7007 MachineInstr::isRegTiedTo{Use,Def}Operand can safely be made const. 
llvm-svn: 70408
 2009-04-29 20:57:16 +00:00
Dan Gohman d9b11b2ef4 Include the source type in SCEV cast expression debug output, and 
print sext, zext, and trunc, instead of signextend, zeroextend,
and truncate, respectively, for consistency with the main IR.

llvm-svn: 70405
 2009-04-29 20:27:52 +00:00
Nate Begeman 39b59db245 Update comment, replace theoretically impossible check with an assert. 
llvm-svn: 70391
 2009-04-29 18:13:31 +00:00
Dale Johannesen b0bc5c2f81 Fix recent regression in gcc.dg/pr26719.c (6835035). 
llvm-svn: 70386
 2009-04-29 16:38:47 +00:00
Evan Cheng 9cce299cc8 spillPhysRegAroundRegDefsUses() may have invalidated iterators stored in fixed_ IntervalPtrs. Reset them. 
llvm-svn: 70378
 2009-04-29 07:16:34 +00:00
Nate Begeman 5f829d896d Implement review feedback for vector shuffle work. 
llvm-svn: 70372
 2009-04-29 05:20:52 +00:00
Sanjiv Gupta ccd30945f9 Add a public method called getAddressSpace() to the GlobalAddressSDNode. 
llvm-svn: 70366
 2009-04-29 04:43:24 +00:00
Chris Lattner 7d10386113 Disable the load-shrinking optimization from looking at 
anything larger than 64-bits, avoiding a crash.  This should
really be fixed to use APInts, though type legalization happens
to help us out and we get good code on the attached testcase at
least.

This fixes rdar://6836460

llvm-svn: 70360
 2009-04-29 03:45:07 +00:00
Dan Gohman 95c5b0e522 Update comments to reflect the current code. 
llvm-svn: 70357
 2009-04-29 01:54:20 +00:00