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30131 Commits

Author SHA1 Message Date
Andrew Lenharth f7a5332b53 missed cast elimination 
llvm-svn: 34490
 2007-02-22 15:17:45 +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
Chris Lattner 7d92b9129a clarify llvm-gcc GPL issue 
llvm-svn: 34486
 2007-02-22 06:33:23 +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 dbe2491c44 Add a flag to MBBs to indicate whether it is an eh landing pad. 
llvm-svn: 34474
 2007-02-21 22:39:52 +00:00
Jim Laskey 88dd2fd332 Add structures used for collecting eh information. 
llvm-svn: 34473
 2007-02-21 22:38:31 +00:00
Jim Laskey e0c549eeef Add new instructions for handling data passed into eh landing pad. 
llvm-svn: 34472
 2007-02-21 22:37:22 +00:00
Jim Laskey 303fa60b61 Add new intrinsics for eh support. 
llvm-svn: 34471
 2007-02-21 22:35:57 +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
Devang Patel a673b600c8 Simplify 
llvm-svn: 34469
 2007-02-21 19:57:33 +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
Chris Lattner 31f99b9b45 revert r1.68. This breaks 'make install' without doing 'make' first, but 
fixes PR1208.

llvm-svn: 34466
 2007-02-21 06:23:20 +00:00
Reid Spencer db2abec8ac Fix the carry in addition. 
llvm-svn: 34465
 2007-02-21 05:44:56 +00:00
Reid Spencer 4f44f5e8ac Add a dump() method for debugging. 
llvm-svn: 34464
 2007-02-21 03:56:12 +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
Devang Patel 57bc4d1bc2 Fix memory leak (PR 775). 
llvm-svn: 34462
 2007-02-21 02:36:31 +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
Reid Spencer 1bed091776 Add an internal convenience method for division that urem and udiv use. 
llvm-svn: 34448
 2007-02-20 08:43:42 +00:00
Chris Lattner 2db2c526a5 eliminate some dead friends. 
llvm-svn: 34447
 2007-02-20 07:18:01 +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 94524b335f add a way to register an arbitrary cleanup function. 
llvm-svn: 34442
 2007-02-20 06:08:37 +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 3f9accd62d remove some dead passes and stuff specific to the reoptimizer. 
llvm-svn: 34438
 2007-02-20 05:31:35 +00:00
Chris Lattner ffbe511d9e remove some passes 
llvm-svn: 34437
 2007-02-20 05:31:04 +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
Evan Cheng b68a774fd9 How the heck did I forget patterns for llvm.x86.sse2.cmp.sd? 
llvm-svn: 34434
 2007-02-20 00:39:09 +00:00