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5476 Commits

Author SHA1 Message Date
Devang Patel
9c100bc7e9 Set up ground work to verify preserved analysis info. 
llvm-svn: 40039
 2007-07-19 05:36:09 +00:00
Dan Gohman
4d64f82ab5 Add constructor overloads for LoadInst and StoreInst that insert at the 
end of a BasicBlock and have an alignment parameter.

llvm-svn: 40016
 2007-07-18 20:51:11 +00:00
Reid Spencer
3dd7b1699b Unbreak the build by putting calls to free into the implementation file and 
having that implementation file #include <cstdlib>.

llvm-svn: 39952
 2007-07-17 02:16:12 +00:00
Owen Anderson
efc00e35cf Add support for walking up memory def chains, which enables finding many more 
dead stores on 400.perlbench.

llvm-svn: 39929
 2007-07-16 21:52:50 +00:00
Owen Anderson
f01c29815d Use realloc() to (potentially) resize the contents of SmallPtrSet in place. 
llvm-svn: 39926
 2007-07-16 21:27:44 +00:00
Dan Gohman
0ba554c0c8 Fix comments about vectors to use the current wording. 
llvm-svn: 39921
 2007-07-16 14:29:03 +00:00
Nick Lewycky
43e5fd5be7 Handle decrementing loops properly. Fixes PR1533. 
Always pass the constant as the second parameter to HowManyLessThans.

Remove obsolete "isSigned" parameter.

llvm-svn: 39893
 2007-07-16 02:08:00 +00:00
Chris Lattner
03bc1d9018 add a helper method. 
llvm-svn: 39885
 2007-07-15 23:32:03 +00:00
Nick Lewycky
701e227136 Clarify the language. Pointed out by Duncan Sands. 
llvm-svn: 39857
 2007-07-14 17:41:03 +00:00
Anton Korobeynikov
5635277c36 Long live the exception handling! 
This patch fills the last necessary bits to enable exceptions
handling in LLVM. Currently only on x86-32/linux.

In fact, this patch adds necessary intrinsics (and their lowering) which
represent really weird target-specific gcc builtins used inside unwinder.

After corresponding llvm-gcc patch will land (easy) exceptions should be
more or less workable. However, exceptions handling support should not be 
thought as 'finished': I expect many small and not so small glitches
everywhere.

llvm-svn: 39855
 2007-07-14 14:06:15 +00:00
Nick Lewycky
42e8a060a0 Add alternate ConstantRange intersection algorithm. 
llvm-svn: 39851
 2007-07-14 02:51:34 +00:00
Devang Patel
9166ad7658 Make LCSSA a loop pass. 
llvm-svn: 39844
 2007-07-13 23:57:11 +00:00
Dale Johannesen
469ed8e17e Skeleton of post-RA scheduler; doesn't do anything yet. 
Change name of -sched option and DEBUG_TYPE to
pre-RA-sched; adjust testcases.

llvm-svn: 39816
 2007-07-13 17:13:54 +00:00
Reid Spencer
09aba24630 Regenerate to pick up Gabor's changes. 
llvm-svn: 39802
 2007-07-13 10:05:30 +00:00
Tanya Lattner
a715bbe152 Adding ability to demote phi to stack. 
llvm-svn: 39744
 2007-07-11 18:41:34 +00:00
Owen Anderson
1eaba31f12 Add FastDSE, a new algorithm for doing dead store elimination. This algorithm is not as accurate 
as the current DSE, but it only a linear scan over each block, rather than quadratic.  Eventually
(once it has been improved somewhat), this will replace the current DSE.

NOTE: This has not yet been extensively tested.
llvm-svn: 38517
 2007-07-11 00:46:18 +00:00
Evan Cheng
6125079452 Add OptionalDefOperand. Remove clobbersPred. Also add DefinesPredicate to be used by if-converter. 
llvm-svn: 38499
 2007-07-10 18:06:29 +00:00
Owen Anderson
1f5fb875b6 Add support for finding the dependencies of call and invoke instructions. 
llvm-svn: 38497
 2007-07-10 17:59:22 +00:00
Owen Anderson
1fabbda503 Fix a bunch of things from Chris' feedback 
llvm-svn: 38493
 2007-07-10 17:08:11 +00:00
Evan Cheng
cf3b1c89a9 When a node value is only used by a CopyToReg, use the user's dest. This should not be restricted to nodes that produce only a single value. 
llvm-svn: 38485
 2007-07-10 07:08:32 +00:00
Evan Cheng
23dc96f640 Move DenseMapKeyInfo<SDOperand> from LegalizeDAG.cpp to SelectionDAGNodes.h 
llvm-svn: 38484
 2007-07-10 06:59:55 +00:00
Owen Anderson
31eaa152b8 Evidently my earlier fix did not go far enough. When resizing a zero-sized 
BitVector, make sure to set or clear ALL of the bits.

llvm-svn: 38481
 2007-07-10 02:01:16 +00:00
Owen Anderson
1ab53d5ee7 When resizing a BitVector with size 0, be sure to clear the low word before using it. 
llvm-svn: 38476
 2007-07-09 23:39:39 +00:00
Devang Patel
65f3717db9 Expose struct size threhold to allow users to tweak their own setting. 
llvm-svn: 38472
 2007-07-09 21:19:23 +00:00
Owen Anderson
e48ed4f7a8 Make the assignment operator for SmallPtrSet return a reference, and fix a long-standing bug in the copy 
ctor while I'm at it.

Thanks to Chris Lattner for help with this patch.

llvm-svn: 38470
 2007-07-09 20:59:01 +00:00
Devang Patel
f1b6294e80 Fix memory leak. 
llvm-svn: 38469
 2007-07-09 20:52:39 +00:00
Chris Lattner
39e93bf0e0 work around an aparent gcc name resolution bug by 
detemplatizing this.

llvm-svn: 38461
 2007-07-09 17:11:53 +00:00
Chris Lattner
97ba0c99ed implement operator= for smallptrset 
llvm-svn: 38460
 2007-07-09 16:54:03 +00:00
Dan Gohman
4e45063081 Move the APInt form of SCEVUnknown::getIntegerSCEV to SCEVConstant::get, and 
use SCEVConstant::get instead of SCEVUnknown::get when constructing a SCEV
for a ConstantInt.

llvm-svn: 38457
 2007-07-09 15:25:17 +00:00
Dan Gohman
3f7558673e Fix a typo in a comment. 
llvm-svn: 38456
 2007-07-09 15:15:24 +00:00
Gabor Greif
0c10b17f03 missed this one 
llvm-svn: 38454
 2007-07-09 12:20:30 +00:00
Gabor Greif
89919e17b4 fix typos 
llvm-svn: 38453
 2007-07-09 12:00:59 +00:00
Owen Anderson
23d5d3add4 A first stab at memory dependence analysis. This is an interface on top of 
alias analysis, adding caching and lazy computation of queries.  This will
be used in planned improvements to memory access optimizations.

llvm-svn: 37958
 2007-07-06 23:14:35 +00:00
Owen Anderson
6644d23a16 Add some accessors to improve consistency. 
llvm-svn: 37957
 2007-07-06 23:13:31 +00:00
Devang Patel
d9043c7501 Add SplitEdge and SplitBlock utility routines. 
llvm-svn: 37952
 2007-07-06 21:39:20 +00:00
Gabor Greif
018330fd12 finishing touches of bytecode -> bitcode changes. also unbreak Windows 
llvm-svn: 37950
 2007-07-06 20:28:40 +00:00
Dan Gohman
61966b8551 Remove redundant declarations. 
llvm-svn: 37946
 2007-07-06 13:59:28 +00:00
Gabor Greif
f5e225a756 eliminate residual cruft related to recognizing bytecode 
files.
bitcode files are the only LLVM format left.

llvm-svn: 37945
 2007-07-06 13:38:17 +00:00
Dan Gohman
dd89857d45 Fix a comment so that the element numbering match the actual element 
operand numbering.

llvm-svn: 37944
 2007-07-06 13:27:33 +00:00
Rafael Espindola
7b3de98989 Add the byval attribute 
llvm-svn: 37940
 2007-07-06 10:57:03 +00:00
Dan Gohman
a83ac4f3b4 Add explicit keywords. 
llvm-svn: 37925
 2007-07-05 20:40:15 +00:00
Dan Gohman
98470536ff Make MachineFunctionPass::runOnFunction non-virtual. Subclasses override 
the virtual function runOnMachineFunction instead. And add access specifiers.

llvm-svn: 37924
 2007-07-05 20:39:35 +00:00
Gabor Greif
5f705671e4 Here is the bulk of the sanitizing. 
Almost all occurrences of "bytecode" in the sources have been eliminated.

llvm-svn: 37913
 2007-07-05 17:07:56 +00:00
Duncan Sands
eca2fa295b Make sure only one copy of a filter is placed in the 
exception handling table if we encounter it multiple
times.  Filters could be folded harder than this, but
that would mean a lot more work for not much gain.

llvm-svn: 37908
 2007-07-05 15:15:01 +00:00
Duncan Sands
4441eff1ac Extend eh.selector to support both catches and filters. 
Drop the eh.filter intrinsic.

llvm-svn: 37875
 2007-07-04 20:52:51 +00:00
Devang Patel
7d791bb10c Remove unused method - getIDomBlock(). 
llvm-svn: 37865
 2007-07-04 01:11:19 +00:00
Devang Patel
6e6a5c1893 Fix typo in assertion check. 
llvm-svn: 37864
 2007-07-04 01:05:22 +00:00
Dan Gohman
7cf351b873 Remove declarations for code no longer in the tree, to avoid confusion. 
llvm-svn: 37840
 2007-07-02 15:06:26 +00:00
Dan Gohman
048c6f805b Add explicit keywords. 
llvm-svn: 37839
 2007-07-02 14:53:37 +00:00
Devang Patel
593a23252d Add loop info verification mechanism. 
llvm-svn: 37822
 2007-06-29 23:13:42 +00:00