edb926bfe3
When removing instructions from the analysis, be sure to check the confirmed
...
flag when determining what to do with dependencies.
llvm-svn: 40079
2007-07-20 06:16:07 +00:00
a273d1cd3a
Verify loop info.
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llvm-svn: 40062
2007-07-19 18:02:32 +00:00
60f28bff4c
Replace mysterious code causing a g++-4.2 warning
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with hopefully correct code that pleases g++-4.2.
llvm-svn: 40051
2007-07-19 09:42:01 +00:00
7fcaaadf1c
Add support for walking up memory def chains, which enables finding many more
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dead stores on 400.perlbench.
llvm-svn: 39929
2007-07-16 21:52:50 +00:00
72efc04d8e
Use ConstantFoldFP for folding all unary floating-point operations which may
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have an error, and refector out the code for binary operators into
ConstantFoldBinaryFP and use it for all binary floating-point operations
which may have an error. These functions still rely exclusively on errno
to detect errors though.
llvm-svn: 39923
2007-07-16 15:26:22 +00:00
06c60b6032
Fix comments about vectors to use the current wording.
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llvm-svn: 39921
2007-07-16 14:29:03 +00:00
5246026c8c
Handle decrementing loops properly. Fixes PR1533.
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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
1e1bace52b
Let MemoryDependenceAnalysis take care of updating AliasAnalysis.
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llvm-svn: 39769
2007-07-12 00:06:21 +00:00
c432490b4c
Calculate the size of a array allocation correctly.
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llvm-svn: 38511
2007-07-10 20:48:38 +00:00
faf9e42479
Fix a crasher when finding the dependency of a call.
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llvm-svn: 38510
2007-07-10 20:39:07 +00:00
1279eaf776
Make this pass registration static as well.
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llvm-svn: 38509
2007-07-10 20:21:08 +00:00
1fa6132e85
Handle vaarg instructions correctly.
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llvm-svn: 38504
2007-07-10 18:43:15 +00:00
94a21dd1e0
Volatile loads and stores depend on each other.
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llvm-svn: 38502
2007-07-10 18:11:42 +00:00
9c88457abe
Add support for finding the dependencies of call and invoke instructions.
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llvm-svn: 38497
2007-07-10 17:59:22 +00:00
2552a12e65
Fix the build, and fix the handling of pointer sizes.
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llvm-svn: 38494
2007-07-10 17:25:03 +00:00
47352db672
Fix a bunch of things from Chris' feedback
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llvm-svn: 38493
2007-07-10 17:08:11 +00:00
0a76e7f678
Move the APInt form of SCEVUnknown::getIntegerSCEV to SCEVConstant::get, and
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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
c0daf5fe53
A first stab at memory dependence analysis. This is an interface on top of
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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
1eb8ed47f5
Add explicit keywords.
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llvm-svn: 37839
2007-07-02 14:53:37 +00:00
88197332e7
Add loop info verification mechanism.
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llvm-svn: 37822
2007-06-29 23:13:42 +00:00
703de8fea8
CallGraphSCCPass manager may require other passes.
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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
32f53bbd85
Rename ScalarEvolution::deleteInstructionFromRecords to
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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
eed125f315
In SCEVAddExpr::get, skip over any cast operands before looking for nested
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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
02b0997b28
Make BasicAliasAnalysis correctly register itself. Patch by Devang
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llvm-svn: 37627
2007-06-18 17:13:29 +00:00
00cb117b07
Fold a binary operator with constant operands when expanding code for a SCEV.
...
llvm-svn: 37602
2007-06-15 19:21:55 +00:00
cb9e09ad57
Add a SCEV class and supporting code for sign-extend expressions.
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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
a6ff5bf9ba
Break DominatorTree from ETNode.
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Remove unused PostETForest.
llvm-svn: 37551
2007-06-12 00:54:38 +00:00
aee309e353
Use DominatorTree instead of ETForest.
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llvm-svn: 37507
2007-06-08 00:17:13 +00:00
31257adce9
Use DominatorTree instead of ETForest.
...
llvm-svn: 37505
2007-06-07 23:53:38 +00:00
af41e4a192
Maintain ETNode as part of DomTreeNode.
...
This adds redundancy for now.
llvm-svn: 37492
2007-06-07 17:47:21 +00:00
df543f4b84
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
3e84212897
Fix PR1487 and Transforms/IndVar/2007-06-06-DeleteDanglesPtr.ll
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llvm-svn: 37459
2007-06-06 04:12:20 +00:00
3e6519e9fa
Fix PR 1497
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Use separate pass id for CFGOnlyPrinter.
llvm-svn: 37439
2007-06-05 20:24:36 +00:00
bdd1aaef10
s/llvm::DominatorTreeBase::DomTreeNode/llvm::DomTreeNode/g
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llvm-svn: 37407
2007-06-04 00:32:22 +00:00
0e8aa7b69a
s/DominatorTreeBase::Node/DominatorTreeBase:DomTreeNode/g
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llvm-svn: 37403
2007-06-03 06:26:14 +00:00
688b2807df
when merging two alias sets together, be sure to propagate the volatility of
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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
90d97ac1e6
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
e7da2d6ac3
Fix typo in comment.
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llvm-svn: 36873
2007-05-06 13:37:16 +00:00
8c78a0bff0
Drop 'const'
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llvm-svn: 36662
2007-05-03 01:11:54 +00:00
e95c6ad802
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
41223586a2
Fix build error.
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llvm-svn: 36648
2007-05-02 20:37:47 +00:00
09f162ca6a
Do not use typeinfo to identify pass in pass manager.
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llvm-svn: 36632
2007-05-01 21:15:47 +00:00
aafe4e216e
Make use of ConstantInt::isZero instead of ConstantInt::isNullValue.
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llvm-svn: 36261
2007-04-19 05:39:12 +00:00
883ff07672
Cache DT[*SI] lookup.
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llvm-svn: 36239
2007-04-18 01:19:55 +00:00
5976db0103
Fix
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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
135a077c93
Be more careful when inserting reused instructions. This fixes CodeGen/Generic/2007-04-17-lsr-crash.ll
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llvm-svn: 36231
2007-04-17 23:43:50 +00:00
672db8eab5
Remove use of Instruction::getNext
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llvm-svn: 36201
2007-04-17 17:52:45 +00:00
fb80151c42
Removed tabs everywhere except autogenerated & external files. Add make
...
target for tabs checking.
llvm-svn: 36146
2007-04-16 18:10:23 +00:00
a3cfb8a683
Revert last patch. It was already fixed.
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llvm-svn: 36102
2007-04-16 02:24:41 +00:00
8be22e4e04
For PR1336:
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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