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Author SHA1 Message Date
Jim Laskey
a5ee0bbf17 Exception handling support. 
llvm-svn: 34479
 2007-02-21 22:48:45 +00:00
Jim Laskey
bce43df323 Add support for changes in DwarfWriter. 
llvm-svn: 34478
 2007-02-21 22:47:38 +00:00
Jim Laskey
d1e09aa74a Add TAI field for exception table section. 
llvm-svn: 34477
 2007-02-21 22:43:40 +00:00
Jim Laskey
b56b6a7042 Make branch folding behave in the presence of landing pads. 
llvm-svn: 34476
 2007-02-21 22:42:20 +00:00
Jim Laskey
1ac1a19f01 Allow for live in registers for eh landing pads. 
llvm-svn: 34475
 2007-02-21 22:41:17 +00:00
Jim Laskey
8fdff03f2b 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
534bc5a9a3 Add structures used for collecting eh information. 
llvm-svn: 34473
 2007-02-21 22:38:31 +00:00
Jim Laskey
013a72ffd4 Add new instructions for handling data passed into eh landing pad. 
llvm-svn: 34472
 2007-02-21 22:37:22 +00:00
Jim Laskey
c13cc1eac7 Add new intrinsics for eh support. 
llvm-svn: 34471
 2007-02-21 22:35:57 +00:00
Evan Cheng
0e7be3c4e0 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
ee1da8a703 Simplify 
llvm-svn: 34469
 2007-02-21 19:57:33 +00:00
Reid Spencer
df5fe8163d 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
b8a9b86473 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
95874f6bc9 Fix the carry in addition. 
llvm-svn: 34465
 2007-02-21 05:44:56 +00:00
Reid Spencer
807eadb51a Add a dump() method for debugging. 
llvm-svn: 34464
 2007-02-21 03:56:12 +00:00
Reid Spencer
c4662ad089 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
96f62d7c95 Fix memory leak (PR 775). 
llvm-svn: 34462
 2007-02-21 02:36:31 +00:00
Evan Cheng
517ca88cdd Out of bound reference. 
llvm-svn: 34461
 2007-02-21 02:27:39 +00:00
Evan Cheng
0003c692cc Use BitVector instead. No functionality change. 
llvm-svn: 34460
 2007-02-21 02:22:03 +00:00
Reid Spencer
1fbf856864 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
17d47c5062 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
0af52bec6b This cast broke lots of tests. 
llvm-svn: 34457
 2007-02-20 21:30:56 +00:00
Dan Gohman
e24135a647 Fix typos in comments. 
llvm-svn: 34456
 2007-02-20 20:52:03 +00:00
Reid Spencer
b27fcd8cb6 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
4caebb1af8 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
80b41ab5f7 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
2e50b9ed5b 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
b6ddd260ec eliminate some dead friends. 
llvm-svn: 34447
 2007-02-20 07:18:01 +00:00
Chris Lattner
be8f4becf4 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
37a49eb48d 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
b22fb7fc60 Not all managedstatics need object pointers. 
llvm-svn: 34444
 2007-02-20 06:18:57 +00:00
Chris Lattner
adb16a1a53 Make ConstantInt::getTrue/getFalse be llvm_shutdown safe. 
llvm-svn: 34443
 2007-02-20 06:11:36 +00:00
Chris Lattner
08e1470365 add a way to register an arbitrary cleanup function. 
llvm-svn: 34442
 2007-02-20 06:08:37 +00:00
Chris Lattner
c8db23f8a7 Clean up the internals of the ConstantInt machinery 
llvm-svn: 34441
 2007-02-20 05:55:46 +00:00
Chris Lattner
26dc9c9dc8 simplify some code that was not llvm_shutdown safe 
llvm-svn: 34440
 2007-02-20 05:46:39 +00:00
Chris Lattner
bfbeedf462 remove reoptimizer-specific passes 
llvm-svn: 34439
 2007-02-20 05:31:49 +00:00
Chris Lattner
388222d25e remove some dead passes and stuff specific to the reoptimizer. 
llvm-svn: 34438
 2007-02-20 05:31:35 +00:00
Chris Lattner
71ced5505c remove some passes 
llvm-svn: 34437
 2007-02-20 05:31:04 +00:00
Chris Lattner
502e4b271a remove dead method 
llvm-svn: 34436
 2007-02-20 05:29:47 +00:00
Evan Cheng
f35559f26f Dead code. 
llvm-svn: 34435
 2007-02-20 01:29:10 +00:00
Evan Cheng
a6399ed8d6 How the heck did I forget patterns for llvm.x86.sse2.cmp.sd? 
llvm-svn: 34434
 2007-02-20 00:39:09 +00:00
Reid Spencer
52e307f820 Add a section on the target datalayout syntax and describe the defaults 
and rules used by LLVM to construct the target's layout rules.

llvm-svn: 34433
 2007-02-19 23:54:10 +00:00
Reid Spencer
bd46f28da7 Simplify some code by moving variable declarations into the only block that 
uses them.

llvm-svn: 34432
 2007-02-19 23:30:10 +00:00
Reid Spencer
78e1ec0122 Implement support for non-standard integer bit widths of any size. The 
rules alignment is to pick the alignment that corresponds to the smallest
specified alignment that is larger than the bit width of the type or the
largest specified integer alignment if none are larger than the bitwidth
of the type. For the byte size, the size returned is the next larger
multiple of the alignment for that type (using the above rule). This patch
also changes bit widths from "short" to "uint32_t" to ensure there are
enough bits to specify any bit width that LLVM can handle (currently 2^23);
16-bits isn't enough.

llvm-svn: 34431
 2007-02-19 22:35:00 +00:00
Evan Cheng
aa8e491a2f Added test case for PR1207. 
llvm-svn: 34429
 2007-02-19 21:53:59 +00:00
Evan Cheng
e4ab9c032b Re-apply my liveintervalanalysis changes. Now with PR1207 fixes. 
llvm-svn: 34428
 2007-02-19 21:49:54 +00:00
Evan Cheng
9482b32217 Fix test case. 
llvm-svn: 34427
 2007-02-19 21:47:02 +00:00
Chris Lattner
429de9a4ad this passes now 
llvm-svn: 34426
 2007-02-19 20:20:04 +00:00
Chris Lattner
f501d245c8 llvm-gcc issue fixed, revert reversal :) 
llvm-svn: 34425
 2007-02-19 20:01:23 +00:00
Chris Lattner
8f9dc788c1 remove warning 
llvm-svn: 34424
 2007-02-19 19:46:17 +00:00