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17481 Commits

Author SHA1 Message Date
Chris Lattner e56fef9b51 eliminate temporary vectors created during X86 lowering. 
llvm-svn: 34577
 2007-02-25 06:40:16 +00:00
Chris Lattner 84141d4e99 remove std::vector's in RET lowering. 
llvm-svn: 34576
 2007-02-25 06:21:57 +00:00
Chris Lattner 43df5b335c implement support for the linux/ppc function call ABI. Patch by 
Nicolas Geoffray!

llvm-svn: 34574
 2007-02-25 05:34:32 +00:00
Chris Lattner b9bd34f54a Add XLForm_1_ext template, patch by Nicolas Geoffray. 
llvm-svn: 34573
 2007-02-25 05:07:49 +00:00
Chris Lattner 249edb8b67 Improve JIT support for linux/ppc: Patch by Nicolas Geoffray! 
llvm-svn: 34572
 2007-02-25 05:04:13 +00:00
Chris Lattner 4ae31ba82c this doesn't compile, disable it 
llvm-svn: 34571
 2007-02-25 02:32:44 +00:00
Reid Spencer 522ca7cd8b Clean up lshr and ashr to coding standards. 
Handle the single word cases for shiftAmt == BitWidth.

llvm-svn: 34569
 2007-02-25 01:56:07 +00:00
Dale Johannesen e80e31eada remove crediting of Evan Cheng and me. 
llvm-svn: 34568
 2007-02-25 01:42:36 +00:00
Chris Lattner 168c5856bf initialize a instance variable 
llvm-svn: 34567
 2007-02-25 01:28:05 +00:00
Reid Spencer ab0e08ae2f Whoops, last word with bits in large shift left wasn't correct. 
llvm-svn: 34565
 2007-02-25 01:08:58 +00:00
Reid Spencer a5c84d95fa Fix the > 64 bits case for left shift. 
llvm-svn: 34564
 2007-02-25 00:56:44 +00:00
Dale Johannesen 01ee5750f4 Removed WaterListOffset, inserted BBOffsets. Remove TODO item about this 
from README.
When no water available, use end of block if in range.  (More to do here.)

llvm-svn: 34563
 2007-02-25 00:47:03 +00:00
Reid Spencer 468ad911cb Fix the remainder shifting in KnuthDiv. 
llvm-svn: 34562
 2007-02-24 20:38:01 +00:00
Reid Spencer 632ebdf8bd 1. Fix a bug in fromString for the <= 64bits case 
2. Fix shl when shiftAmount == BitWidth.

llvm-svn: 34560
 2007-02-24 20:19:37 +00:00
Reid Spencer df6cf5ab71 1. Fix last bug in KnuthDiv. All divide tests pass up to 1024 bits now. 
2. Clean up comments, style, coding standards, etc.
3. Simplify a constructor.

Extended testing revealed some additional bugs in shifting. I'll fix these
tomorrow.

llvm-svn: 34559
 2007-02-24 10:01:42 +00:00
Jim Laskey e1d1c0590f Deal with cases when MMI is not requested. 
llvm-svn: 34556
 2007-02-24 09:45:44 +00:00
Jim Laskey b869ab6f31 Drop unused operand. 
llvm-svn: 34555
 2007-02-24 09:44:17 +00:00
Reid Spencer a5e0d200c9 1. Make internal functions take const arguments where they should, just 
to be safe.
2. Make internal functions that return a carry/borrow return bool instead
   of uint64_t because the carry/borrow can only be in range [0,1].
3. Assert that the pointers to KnuthDiv are all different so that the
   result and operands can't overlap.
4. Add debug output to KnuthDiv function.
5. Fix a problem with KnuthDiv by separating the b's complement operation
   from the subtraction borrow operation. This fixes a wide range of
   division problems, but alas, not all of them.

llvm-svn: 34554
 2007-02-24 03:58:46 +00:00
Chris Lattner 05858a9e32 Fix PR1216 by cleaning up the ownership of JITResolver. 
llvm-svn: 34552
 2007-02-24 02:57:03 +00:00
Chris Lattner d7ef3f804d Fix CodeGen/Generic/2007-02-23-DAGCombine-Miscompile.ll and PR1219 
llvm-svn: 34551
 2007-02-24 02:09:29 +00:00
Chris Lattner a5821eca0d remove folding set debug output 
llvm-svn: 34549
 2007-02-24 01:41:48 +00:00
Chris Lattner fb94fe742b Fix Transforms/ConstProp/2007-02-23-sdiv.ll and PR1215 
llvm-svn: 34548
 2007-02-24 01:19:50 +00:00
Chris Lattner c4d8e7e614 Fix InstCombine/2007-02-23-PhiFoldInfLoop.ll and PR1217 
llvm-svn: 34546
 2007-02-24 01:03:45 +00:00
Chris Lattner 2195fc41ec Refactor the setName stuff, moving it down the inheritance hierarchy, to 
solve a crash in -instcombine -debug that was hit while investigating PR1217

llvm-svn: 34544
 2007-02-24 00:55:48 +00:00
Bill Wendling 77a345f000 PR1164: 
Generate local names with a "llvm_cbe_" prefix using the actual name of the
variable instead of a temporary name.

llvm-svn: 34540
 2007-02-23 22:45:08 +00:00
Chris Lattner 66330fdddb Avoid TBAA issue. 
llvm-svn: 34539
 2007-02-23 22:31:24 +00:00
Lauro Ramos Venancio 0eb70ebbe5 bugfix: SP wasn't updated for varargs when frame pointer was eliminated. 
llvm-svn: 34537
 2007-02-23 21:53:48 +00:00
Evan Cheng 520b20d3b7 Reuse extends the liveness of a register. Transfer the kill to the operand that reuse it. 
llvm-svn: 34536
 2007-02-23 21:47:50 +00:00
Jim Laskey 31fef788eb Handle improper cast. 
llvm-svn: 34535
 2007-02-23 21:45:01 +00:00
Evan Cheng 97cc93841d Handle cases when joining live intervals of two virtual registers. 
llvm-svn: 34534
 2007-02-23 20:40:13 +00:00
Jim Laskey 2f28a3cf08 Don't spill LR as a callee saved register. 
llvm-svn: 34533
 2007-02-23 20:34:16 +00:00
Lauro Ramos Venancio 3e906c48d3 Fix stack alignment in functions with varargs. 
llvm-svn: 34532
 2007-02-23 20:32:57 +00:00
Chris Lattner 1e48acb858 fix an obscure and tricky bug the inliner can hit sometimes. 
llvm-svn: 34531
 2007-02-23 19:54:30 +00:00
Devang Patel b1fcb9ae15 Fix thinko. 
llvm-svn: 34528
 2007-02-23 18:05:55 +00:00
Devang Patel d3ccdfd04d Loop passes are set up to accept pointer. 
llvm-svn: 34527
 2007-02-23 17:53:17 +00:00
Evan Cheng 584e051c28 Mark livein registers as being in used. 
llvm-svn: 34525
 2007-02-23 08:41:19 +00:00
Dale Johannesen e18b13b213 rewrite of constant islands 
llvm-svn: 34523
 2007-02-23 05:02:36 +00:00
Evan Cheng 9f8301413c Added -march=thumb; removed -enable-thumb. 
llvm-svn: 34521
 2007-02-23 03:14:31 +00:00
Evan Cheng d00d344519 80 col. violation. 
llvm-svn: 34520
 2007-02-23 03:03:16 +00:00
Anton Korobeynikov 01b49ce415 External weak linkage is supported by recent binutils on mingw32. 
llvm-svn: 34519
 2007-02-23 01:58:50 +00:00
Reid Spencer cb292e4a20 1. Fix a carry out problem in add if destination and x point to the same 
memory (as done in fromString).
2. Implement Knuth divide more closely to what is recommended in his book.
3. Fix computation of the remainder for Knuth Divide (bad shifting).
4. Remove some cruft from the file

llvm-svn: 34518
 2007-02-23 01:57:13 +00:00
Evan Cheng f7e320c9e0 A spill kills the register being stored. But it is later being reused by spiller, its live range has to be extended. 
llvm-svn: 34517
 2007-02-23 01:13:26 +00:00
Evan Cheng 1e56453585 First potential client of register scavenger. 
llvm-svn: 34516
 2007-02-23 01:11:26 +00:00
Evan Cheng df5899258c By default, spills kills the register being stored. 
llvm-svn: 34515
 2007-02-23 01:10:04 +00:00
Evan Cheng 15af662314 Add option to turn on register scavenger; By default, spills kills the register being stored. 
llvm-svn: 34514
 2007-02-23 01:09:11 +00:00
Evan Cheng 9965aebd5d Use findRegisterUseOperand to find a kill of particular register. 
llvm-svn: 34512
 2007-02-23 01:04:26 +00:00
Evan Cheng 956fdeb694 Initial check in of register scavenger. Its only current functionality is tracking live registers per MBB. 
llvm-svn: 34511
 2007-02-23 01:01:19 +00:00
Devang Patel 55c3827281 Teach LoopPass to assign itself one Loop Pass Manager. 
llvm-svn: 34510
 2007-02-23 00:36:57 +00:00
Devang Patel 715add3462 Add facility that allows LoopPass to re-insert a loop into 
Loop Pass Manager's queue.

llvm-svn: 34509
 2007-02-23 00:16:44 +00:00
Devang Patel 4e335c6c71 Add LPPassManager interface that LoopPass can use to skip 
rest of the passes in the queue for a loop.

llvm-svn: 34508
 2007-02-23 00:10:16 +00:00
Chris Lattner 0416b204c9 remove obsolete file 
llvm-svn: 34506
 2007-02-22 23:48:43 +00:00
Devang Patel 51705713c9 Populate and walk loop queue. 
llvm-svn: 34505
 2007-02-22 23:45:15 +00:00
Devang Patel de7d49053f Add LoopQueue. This is used by loop pass manager to manage loop nest. 
llvm-svn: 34504
 2007-02-22 23:30:07 +00:00
Evan Cheng cc607daac1 Remove unnecessary isKill properties if a live range has been lengthened due to coalescing. 
llvm-svn: 34503
 2007-02-22 23:03:39 +00:00
Jim Laskey 5cbb4262ab Update comment. 
llvm-svn: 34502
 2007-02-22 18:51:19 +00:00
Jim Laskey 66aa84d12f Missing end of abbreviations - correction 
llvm-svn: 34501
 2007-02-22 18:48:52 +00:00
Jim Laskey 4e3d2b9acc Missing end of abbreviations. 
llvm-svn: 34500
 2007-02-22 18:22:42 +00:00
Jim Laskey 3e3a65b764 Need to init. 
llvm-svn: 34499
 2007-02-22 18:04:49 +00:00
Jim Laskey 9df1a1d8d8 Remove isAccessable. 
llvm-svn: 34497
 2007-02-22 16:39:03 +00:00
Jim Laskey 69bd45c1d2 Use exception flag. 
llvm-svn: 34496
 2007-02-22 16:22:15 +00:00
Jim Laskey d879dfbf1c Revert changes for a simplier solution. 
llvm-svn: 34495
 2007-02-22 16:21:18 +00:00
Jim Laskey 46dbe12b32 Remove assertion. 
llvm-svn: 34494
 2007-02-22 16:12:17 +00:00
Jim Laskey 44c37e7dbf Tighten up error checking of args. 
llvm-svn: 34493
 2007-02-22 16:10:05 +00:00
Jim Laskey 504e99479c Handle lowering invoke to call correctly. 
llvm-svn: 34492
 2007-02-22 15:38:06 +00:00
Jim Laskey 7f5872c455 Simplify lowering and selection of exception ops. 
llvm-svn: 34491
 2007-02-22 15:37:19 +00:00
Jim Laskey e0008e23cf Simplify lowering and selection of exception ops. 
llvm-svn: 34488
 2007-02-22 14:56:36 +00:00
Devang Patel 20525d2836 Add Loop Pass Manager. 
llvm-svn: 34487
 2007-02-22 08:56:17 +00:00
Reid Spencer 867b4064ae When converting from 64 to 32-bits, use the actual number of words to 
extract the value, not the number of words implied by the active bits.
This fixes numerous, but not all divide bugs.

llvm-svn: 34484
 2007-02-22 00:58:45 +00:00
Reid Spencer e4ce71d07a Fix countLeadingZeros in the case that the bitwidth evenly divides the 
word size. This fixes all reads of uninitialized data (buffer over read)
and makes APInt.cpp memory clean, per valgrind. The only remaining
problem is division in a few cases.

llvm-svn: 34483
 2007-02-22 00:22:00 +00:00
Jim Laskey 3796abea0f Support to provide exception and selector registers. 
llvm-svn: 34482
 2007-02-21 22:54:50 +00:00
Jim Laskey 4b37a4c712 Selection and lowering for exception handling. 
llvm-svn: 34481
 2007-02-21 22:53:45 +00:00
Jim Laskey e4ccf22c34 Itanium ABI exception handing support. 
llvm-svn: 34480
 2007-02-21 22:49:50 +00:00
Jim Laskey 09953e6482 Exception handling support. 
llvm-svn: 34479
 2007-02-21 22:48:45 +00:00
Jim Laskey 18fc09723c Add support for changes in DwarfWriter. 
llvm-svn: 34478
 2007-02-21 22:47:38 +00:00
Jim Laskey af76e0e58f Add TAI field for exception table section. 
llvm-svn: 34477
 2007-02-21 22:43:40 +00:00
Jim Laskey 2dc5245c4a Make branch folding behave in the presence of landing pads. 
llvm-svn: 34476
 2007-02-21 22:42:20 +00:00
Jim Laskey 5b2b7c1024 Allow for live in registers for eh landing pads. 
llvm-svn: 34475
 2007-02-21 22:41:17 +00:00
Jim Laskey 88dd2fd332 Add structures used for collecting eh information. 
llvm-svn: 34473
 2007-02-21 22:38:31 +00:00
Evan Cheng 84a041eb98 ELF / PIC requires GOT be in the EBX register during calls via PLT GOT pointer. 
Add implicit uses of EBX to calls to ensure liveintervalanalysis does not treat
the GOT in EBX move as dead upon definition.
This should fix PR1207.

llvm-svn: 34470
 2007-02-21 21:18:14 +00:00
Reid Spencer 58a6a43cb3 Reorganize some code to make it clearer, avoid a few uninitialized memory 
reads, and reduce the number of temporary APInt instances we construct.

llvm-svn: 34467
 2007-02-21 08:21:52 +00:00
Reid Spencer db2abec8ac Fix the carry in addition. 
llvm-svn: 34465
 2007-02-21 05:44:56 +00:00
Reid Spencer 1ba833564e 1. Add a dump() method for faster debugging. 
2. Change 0 initialization of union to larger component so all is zeroed.
3. Fix the borrow logic in subtraction so it works for > 128 bits.
4. Rewrite fromString to use a simpler but correct algorithm and also to
   not set the bit width contrary to the user's request.
5. Optimize toString a bit by making it only do one Knuth divide per
   iteration instead of two.

With these changes, all arithmetic passes (verified by pari/GP) up to
1024 bits except for certain division cases.

llvm-svn: 34463
 2007-02-21 03:55:44 +00:00
Evan Cheng e563c7eb27 Out of bound reference. 
llvm-svn: 34461
 2007-02-21 02:27:39 +00:00
Evan Cheng de037a821a Use BitVector instead. No functionality change. 
llvm-svn: 34460
 2007-02-21 02:22:03 +00:00
Reid Spencer 74cf82e522 Fix countLeadingZeros to actually return the correct number. 
Fix toString to correctly return "0" for zero valued APInts over 128 bits.

llvm-svn: 34459
 2007-02-21 00:29:48 +00:00
Reid Spencer 7a6a8d5116 Make long addition and subtraction work. Speed things up by using internal 
functions more.

llvm-svn: 34458
 2007-02-20 23:40:25 +00:00
Evan Cheng 71b8723f07 This cast broke lots of tests. 
llvm-svn: 34457
 2007-02-20 21:30:56 +00:00
Dan Gohman 8c8597c4d9 Fix typos in comments. 
llvm-svn: 34456
 2007-02-20 20:52:03 +00:00
Reid Spencer 4bb430c4b4 Clean up variable names in operator*. 
Attempt #3 for getting a portable INFINITY value.

llvm-svn: 34454
 2007-02-20 20:42:10 +00:00
Reid Spencer a83af6e1fc Use INFINITY macro from math.h instead of constructing hex floating point 
constants (avoids warnings).

llvm-svn: 34452
 2007-02-20 18:29:12 +00:00
Reid Spencer fb77b2ba13 First version that can process arith.cpp test case up to 1024 bits: 
1. Ensure pVal is set to 0 in each constructor.
2. Fix roundToDouble to make correct calculations and not read beyond the
   end of allocated memory.
3. Implement Knuth's "classical algorithm" for division from scratch and
   eliminate buffer overflows and uninitialized mememory reads. Document
   it properly too.
4. Implement a wrapper function for KnuthDiv which handles the 64-bit to
   32-bit conversion and back. It also implement short division for the
   n == 1 case that Knuth's algorithm can't handle.
5. Simplify the logic of udiv and urem a little, make them exit early, and
   have them use the "divide" wrapper function to perform the division
   or remainder operation.
6. Move the toString function to the end of the file, closer to where
   the division functions are located.

Note: division is still broken for some > 64 bit values, but at least it
      doesn't crash any more.
llvm-svn: 34449
 2007-02-20 08:51:03 +00:00
Chris Lattner c6ee77d1b0 switch ConstantFP's from ValueMap to DenseMap, which is much faster to query 
and is more memory efficient.

llvm-svn: 34446
 2007-02-20 07:17:17 +00:00
Chris Lattner a80bf0b2a6 cleanup ConstantInt to use a single DenseMap for uniquing instead of the 
heavy-weight ValueMap class.  This reduces mem usage bc reading kc++ by 29K,
even though it only creates 2955 constant ints!

llvm-svn: 34445
 2007-02-20 06:39:57 +00:00
Chris Lattner 4510c99a57 Not all managedstatics need object pointers. 
llvm-svn: 34444
 2007-02-20 06:18:57 +00:00
Chris Lattner 281735098a Make ConstantInt::getTrue/getFalse be llvm_shutdown safe. 
llvm-svn: 34443
 2007-02-20 06:11:36 +00:00
Chris Lattner 5db2f47364 Clean up the internals of the ConstantInt machinery 
llvm-svn: 34441
 2007-02-20 05:55:46 +00:00
Chris Lattner dbcb0d3ffe simplify some code that was not llvm_shutdown safe 
llvm-svn: 34440
 2007-02-20 05:46:39 +00:00
Chris Lattner c35fe713ff remove reoptimizer-specific passes 
llvm-svn: 34439
 2007-02-20 05:31:49 +00:00
Chris Lattner 62b2842b6f remove dead method 
llvm-svn: 34436
 2007-02-20 05:29:47 +00:00
Evan Cheng 61cd0914ed Dead code. 
llvm-svn: 34435
 2007-02-20 01:29:10 +00:00