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Author SHA1 Message Date
Jim Laskey
774b864f0e Update comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34502 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 18:51:19 +00:00
Jim Laskey
5df3ad8b7a Missing end of abbreviations - correction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34501 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 18:48:52 +00:00
Jim Laskey
7b1b39d9bc Missing end of abbreviations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34500 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 18:22:42 +00:00
Jim Laskey
9bb3c93af2 Need to init. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34499 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 18:04:49 +00:00
Jim Laskey
f033833109 Typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34498 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 16:40:10 +00:00
Jim Laskey
033c9715d9 Remove isAccessable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34497 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 16:39:03 +00:00
Jim Laskey
a4e7cd947e Use exception flag. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34496 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 16:22:15 +00:00
Jim Laskey
7d4853896c Revert changes for a simplier solution. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34495 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 16:21:18 +00:00
Jim Laskey
f9b1cbc80d Remove assertion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34494 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 16:12:17 +00:00
Jim Laskey
cbfdb7b871 Tighten up error checking of args. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34493 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 16:10:05 +00:00
Jim Laskey
735b6f8cc3 Handle lowering invoke to call correctly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34492 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 15:38:06 +00:00
Jim Laskey
2bc210d99f Simplify lowering and selection of exception ops. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34491 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 15:37:19 +00:00
Andrew Lenharth
082228b884 missed cast elimination 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34490 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 15:17:45 +00:00
Jim Laskey
2ad9f17fee Simplify lowering and selection of exception ops. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34488 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 14:56:36 +00:00
Devang Patel
16a31c4ebf Add Loop Pass Manager. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34487 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 08:56:17 +00:00
Chris Lattner
7d8012b602 clarify llvm-gcc GPL issue 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34486 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 06:33:23 +00:00
Reid Spencer
15aab8a723 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34484 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 00:58:45 +00:00
Reid Spencer
ab2b2c827c 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34483 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 00:22:00 +00:00
Jim Laskey
62819f3144 Support to provide exception and selector registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34482 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 22:54:50 +00:00
Jim Laskey
b180aa1753 Selection and lowering for exception handling. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34481 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 22:53:45 +00:00
Jim Laskey
c518ccfeb5 Itanium ABI exception handing support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34480 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 22:49:50 +00:00
Jim Laskey
bacd304463 Exception handling support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34479 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 22:48:45 +00:00
Jim Laskey
bda9b0ec7b Add support for changes in DwarfWriter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34478 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 22:47:38 +00:00
Jim Laskey
a15be8ce3a Add TAI field for exception table section. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34477 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 22:43:40 +00:00
Jim Laskey
02b3f5ec4a Make branch folding behave in the presence of landing pads. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34476 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 22:42:20 +00:00
Jim Laskey
9b25b8ca24 Allow for live in registers for eh landing pads. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34475 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 22:41:17 +00:00
Jim Laskey
30b8e51add Add a flag to MBBs to indicate whether it is an eh landing pad. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34474 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 22:39:52 +00:00
Jim Laskey
59667fe203 Add structures used for collecting eh information. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34473 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 22:38:31 +00:00
Jim Laskey
f09f2e304d Add new instructions for handling data passed into eh landing pad. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34472 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 22:37:22 +00:00
Jim Laskey
9cf8927a7b Add new intrinsics for eh support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34471 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 22:35:57 +00:00
Evan Cheng
f46847172a 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34470 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 21:18:14 +00:00
Devang Patel
07d49acbf9 Simplify 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34469 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 19:57:33 +00:00
Reid Spencer
e0cdd3349d Reorganize some code to make it clearer, avoid a few uninitialized memory 
reads, and reduce the number of temporary APInt instances we construct.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34467 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 08:21:52 +00:00
Chris Lattner
122c055711 revert r1.68. This breaks 'make install' without doing 'make' first, but 
fixes PR1208.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34466 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 06:23:20 +00:00
Reid Spencer
60c0a6a74b Fix the carry in addition. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34465 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 05:44:56 +00:00
Reid Spencer
f31c784f27 Add a dump() method for debugging. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34464 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 03:56:12 +00:00
Reid Spencer
385f7547b9 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34463 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 03:55:44 +00:00
Devang Patel
ffee0d4dfe Fix memory leak (PR 775). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34462 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 02:36:31 +00:00
Evan Cheng
788fb1c103 Out of bound reference. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34461 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 02:27:39 +00:00
Evan Cheng
957840b3e1 Use BitVector instead. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34460 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 02:22:03 +00:00
Reid Spencer
e549c4940c Fix countLeadingZeros to actually return the correct number. 
Fix toString to correctly return "0" for zero valued APInts over 128 bits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34459 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 00:29:48 +00:00
Reid Spencer
54362ca095 Make long addition and subtraction work. Speed things up by using internal 
functions more.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34458 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-20 23:40:25 +00:00
Evan Cheng
e811636f33 This cast broke lots of tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34457 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-20 21:30:56 +00:00
Dan Gohman
e26bff22db Fix typos in comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34456 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-20 20:52:03 +00:00
Reid Spencer
61eb180a53 Clean up variable names in operator*. 
Attempt #3 for getting a portable INFINITY value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34454 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-20 20:42:10 +00:00
Reid Spencer
580546a82b Use INFINITY macro from math.h instead of constructing hex floating point 
constants (avoids warnings).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34452 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-20 18:29:12 +00:00
Reid Spencer
9c0696f153 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34449 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-20 08:51:03 +00:00
Reid Spencer
e91f7847e6 Add an internal convenience method for division that urem and udiv use. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34448 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-20 08:43:42 +00:00
Chris Lattner
f543f748c3 eliminate some dead friends. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34447 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-20 07:18:01 +00:00
Chris Lattner
9b4ee0c1bd switch ConstantFP's from ValueMap to DenseMap, which is much faster to query 
and is more memory efficient.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34446 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-20 07:17:17 +00:00