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1528 Commits

Author SHA1 Message Date
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
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
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
Devang Patel
0b2cb3ec61 CallGraphSCCPass manager may require other passes. 
Use schedulePass() to accomodate these requirement instead of directly
assigning a manager to new CallGraph PassManager.

llvm-svn: 37695
 2007-06-21 22:29:02 +00:00
Dan Gohman
bb705e230a Rename ScalarEvolution::deleteInstructionFromRecords to 
deleteValueFromRecords and loosen the types to all it to accept
Value* instead of just Instruction*, since this is what
ScalarEvolution uses internally anyway. This allows more flexibility
for future uses.

llvm-svn: 37657
 2007-06-19 14:28:31 +00:00
Dan Gohman
5db3ad4b32 In SCEVAddExpr::get, skip over any cast operands before looking for nested 
add operands after constant operands. The recent change to recognize
sign-extend expressions caused this to be exposed more often.

llvm-svn: 37628
 2007-06-18 19:30:09 +00:00
Anton Korobeynikov
76361958e8 Make BasicAliasAnalysis correctly register itself. Patch by Devang 
llvm-svn: 37627
 2007-06-18 17:13:29 +00:00
Dan Gohman
1c73ccb4d3 Fold a binary operator with constant operands when expanding code for a SCEV. 
llvm-svn: 37602
 2007-06-15 19:21:55 +00:00
Dan Gohman
838ba27094 Add a SCEV class and supporting code for sign-extend expressions. 
This created an ambiguity for expandInTy to decide when to use
sign-extension or zero-extension, but it turns out that most of its callers
don't actually need a type conversion, now that LLVM types don't have
explicit signedness. Drop expandInTy in favor of plain expand, and change
the few places that actually need a type conversion to do it themselves.

llvm-svn: 37591
 2007-06-15 14:38:12 +00:00
Devang Patel
ab4cb51479 Break DominatorTree from ETNode. 
Remove unused PostETForest.

llvm-svn: 37551
 2007-06-12 00:54:38 +00:00
Devang Patel
d544f5262e Use DominatorTree instead of ETForest. 
llvm-svn: 37507
 2007-06-08 00:17:13 +00:00
Devang Patel
67ede3d635 Use DominatorTree instead of ETForest. 
llvm-svn: 37505
 2007-06-07 23:53:38 +00:00
Devang Patel
babcd06827 Maintain ETNode as part of DomTreeNode. 
This adds redundancy for now.

llvm-svn: 37492
 2007-06-07 17:47:21 +00:00
Nick Lewycky
2897eb89d0 Optimize this test. Firstly, only Instructions may use other Instructions. 
Secondly, checking whether removal succeeded tells you whether it was in
the map to begin with.

llvm-svn: 37469
 2007-06-06 11:26:20 +00:00
Nick Lewycky
c667323382 Fix PR1487 and Transforms/IndVar/2007-06-06-DeleteDanglesPtr.ll 
llvm-svn: 37459
 2007-06-06 04:12:20 +00:00
Devang Patel
606fb412b0 Fix PR 1497 
Use separate pass id for CFGOnlyPrinter.

llvm-svn: 37439
 2007-06-05 20:24:36 +00:00
Devang Patel
2ef6caf14f s/llvm::DominatorTreeBase::DomTreeNode/llvm::DomTreeNode/g 
llvm-svn: 37407
 2007-06-04 00:32:22 +00:00
Devang Patel
d58b82f83a s/DominatorTreeBase::Node/DominatorTreeBase:DomTreeNode/g 
llvm-svn: 37403
 2007-06-03 06:26:14 +00:00
Chris Lattner
d339f51afd when merging two alias sets together, be sure to propagate the volatility of 
the inner set.  This fixes PR1435 and Transforms/LICM/2007-05-22-VolatileSink.ll

llvm-svn: 37305
 2007-05-23 06:36:35 +00:00
Dan Gohman
f704d8f166 Add passes -view-cfg and -view-cfg-only that are like -print-cfg and 
-print-cfg-only except they use the ViewCFG function, which displays the
CFG rendered with graphviz with gv.

llvm-svn: 37033
 2007-05-14 14:25:08 +00:00
Nick Lewycky
c2306ff5b4 Fix typo in comment. 
llvm-svn: 36873
 2007-05-06 13:37:16 +00:00
Devang Patel
cd45427a87 Drop 'const' 
llvm-svn: 36662
 2007-05-03 01:11:54 +00:00
Devang Patel
8ee9065162 Use 'static const char' instead of 'static const int'. 
Due to darwin gcc bug, one version of darwin linker coalesces
static const int, which defauts PassID based pass identification.

llvm-svn: 36652
 2007-05-02 21:39:20 +00:00
Lauro Ramos Venancio
57d03e112b Fix build error. 
llvm-svn: 36648
 2007-05-02 20:37:47 +00:00
Devang Patel
38a66bc82e Do not use typeinfo to identify pass in pass manager. 
llvm-svn: 36632
 2007-05-01 21:15:47 +00:00
Zhou Sheng
9339daf407 Make use of ConstantInt::isZero instead of ConstantInt::isNullValue. 
llvm-svn: 36261
 2007-04-19 05:39:12 +00:00
Devang Patel
ffbee86b8e Cache DT[*SI] lookup. 
llvm-svn: 36239
 2007-04-18 01:19:55 +00:00
Devang Patel
daba9f7064 Fix 
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070416/047971.html

llvm-svn: 36236
 2007-04-18 00:53:01 +00:00
Chris Lattner
af290edea7 Be more careful when inserting reused instructions. This fixes CodeGen/Generic/2007-04-17-lsr-crash.ll 
llvm-svn: 36231
 2007-04-17 23:43:50 +00:00
Chris Lattner
e4323f863a Remove use of Instruction::getNext 
llvm-svn: 36201
 2007-04-17 17:52:45 +00:00
Anton Korobeynikov
f3e62a428a Removed tabs everywhere except autogenerated & external files. Add make 
target for tabs checking.

llvm-svn: 36146
 2007-04-16 18:10:23 +00:00
Reid Spencer
85f055a567 Revert last patch. It was already fixed. 
llvm-svn: 36102
 2007-04-16 02:24:41 +00:00
Reid Spencer
e411fd1f10 For PR1336: 
Fix a div-by-zero bug noticed by APInt. This fixes:
test/Transforms/IndVarsSimplify/exit_value_tests.llx

llvm-svn: 36099
 2007-04-16 01:48:37 +00:00
Owen Anderson
b371956400 Tabs -> Spaces 
llvm-svn: 36094
 2007-04-15 23:14:18 +00:00
Chris Lattner
c2762b5d83 Fix a nasty bug introduced when apint'ified. This fixes 
Transforms/IndVarsSimplify/exit_value_tests.llx

llvm-svn: 36081
 2007-04-15 19:52:49 +00:00
Owen Anderson
ea857029ea Remove ImmediateDominator analysis. The same information can be obtained from DomTree. A lot of code for 
constructing ImmediateDominator is now folded into DomTree construction.

This is part of the ongoing work for PR217.

llvm-svn: 36063
 2007-04-15 08:47:27 +00:00
Chris Lattner
335f1cb1f8 CSE simple binary expressions when they are inserted. This makes LSR produce 
less huge code that needs to be cleaned up by sdisel.

llvm-svn: 35959
 2007-04-13 05:04:18 +00:00
Zhou Sheng
c2cfa6111d Eliminate unnecessary APInt construction. 
llvm-svn: 35740
 2007-04-07 17:48:27 +00:00
Zhou Sheng
7bcd47dbc1 Make APInt variables do the computation stuffs instead of 
ConstantExpr::getXX if possible.

llvm-svn: 35738
 2007-04-07 17:40:57 +00:00
Zhou Sheng
21dfc2107a Eliminate unnecessary zext/trunc stuffs. 
llvm-svn: 35737
 2007-04-07 17:12:38 +00:00
Owen Anderson
85b0e20f2a Completely purge DomSet. This is the (hopefully) final patch for PR1171. 
llvm-svn: 35731
 2007-04-07 07:17:27 +00:00
Owen Anderson
5403a248af Expunge DomSet from LoadValueNumbering. This is part of the continuing 
work on PR1171.

llvm-svn: 35723
 2007-04-07 04:43:07 +00:00
Chris Lattner
6668db1331 Treat xor of signbit like an add. 
llvm-svn: 35586
 2007-04-02 05:41:38 +00:00
Reid Spencer
34b5a64f15 The bit counting intrinsics return i32 not the operand type. This fixes 
last night's regression in SingleSource/UnitTests/2005-05-11-Popcount-ffs-fls

llvm-svn: 35556
 2007-04-01 18:42:20 +00:00
Reid Spencer
88fb617695 For PR1297: 
Support overloaded intrinsics bswap, ctpop, cttz, ctlz.

llvm-svn: 35547
 2007-04-01 07:35:23 +00:00
Dan Gohman
d0a0ea9916 Change uses of Function::front to Function::getEntryBlock for readability. 
llvm-svn: 35265
 2007-03-22 16:38:57 +00:00
Devang Patel
6a56e3c1a0 Now IndVarSimplify is a LoopPass. 
llvm-svn: 35003
 2007-03-07 06:39:01 +00:00
Devang Patel
c35610b9f9 Now LoopUnswitch is a LoopPass. 
llvm-svn: 34992
 2007-03-07 00:26:10 +00:00
Devang Patel
bee9c51214 Insert loop into LQ before visiting children. 
llvm-svn: 34982
 2007-03-06 19:50:49 +00:00