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1587 Commits

Author SHA1 Message Date
Owen Anderson
3dfcf33cf8 Fix a bug in non-local memdep that was causing an infinite loop on 175.vpr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40495 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-25 21:26:36 +00:00
Owen Anderson
0cd320362e Add basic support for performing whole-function RLE. 
Note: This has not yet been thoroughly tested.  Use at your own risk.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40489 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-25 19:57:03 +00:00
Owen Anderson
4beedbd006 Add initial support for non-local memory dependence analysis. 
NOTE: This has only been cursorily tested.  Expected improvements soon.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40476 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-24 21:52:37 +00:00
Devang Patel
62e279bbdb Unreachable block is not a root node in post dominator tree. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40458 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-24 01:02:25 +00:00
Owen Anderson
521a20207c When removing instructions from the analysis, be sure to check the confirmed 
flag when determining what to do with dependencies.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40079 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-20 06:16:07 +00:00
Devang Patel
58e0ef1e90 Verify loop info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40062 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-19 18:02:32 +00:00
Duncan Sands
20d824b7df Replace mysterious code causing a g++-4.2 warning 
with hopefully correct code that pleases g++-4.2.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40051 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-19 09:42:01 +00:00
Owen Anderson
faac518ce0 Add support for walking up memory def chains, which enables finding many more 
dead stores on 400.perlbench.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39929 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 21:52:50 +00:00
Dan Gohman
384152444d Use ConstantFoldFP for folding all unary floating-point operations which may 
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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39923 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 15:26:22 +00:00
Dan Gohman
07a96765da Fix comments about vectors to use the current wording. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39921 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 14:29:03 +00:00
Nick Lewycky
eefdebe002 Handle decrementing loops properly. Fixes PR1533. 
Always pass the constant as the second parameter to HowManyLessThans.

Remove obsolete "isSigned" parameter.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39893 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 02:08:00 +00:00
Owen Anderson
1cb960a4bb Let MemoryDependenceAnalysis take care of updating AliasAnalysis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39769 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-12 00:06:21 +00:00
Owen Anderson
8e85048d7b Calculate the size of a array allocation correctly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38511 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 20:48:38 +00:00
Owen Anderson
202da14fe0 Fix a crasher when finding the dependency of a call. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38510 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 20:39:07 +00:00
Owen Anderson
776ee1fb33 Make this pass registration static as well. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38509 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 20:21:08 +00:00
Owen Anderson
06b6e82f79 Handle vaarg instructions correctly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38504 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 18:43:15 +00:00
Owen Anderson
e314eb3255 Volatile loads and stores depend on each other. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38502 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 18:11:42 +00:00
Owen Anderson
5f32320797 Add support for finding the dependencies of call and invoke instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38497 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 17:59:22 +00:00
Owen Anderson
7a616a1012 Fix the build, and fix the handling of pointer sizes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38494 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 17:25:03 +00:00
Owen Anderson
6b278fc786 Fix a bunch of things from Chris' feedback 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38493 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 17:08:11 +00:00
Dan Gohman
9a6ae965d6 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38457 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-09 15:25:17 +00:00
Owen Anderson
78e02f78ce 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37958 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-06 23:14:35 +00:00
Dan Gohman
a6900c7ad9 Add explicit keywords. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37839 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-02 14:53:37 +00:00
Devang Patel
1a957d563f Add loop info verification mechanism. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37822 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-29 23:13:42 +00:00
Devang Patel
25e681ac22 CallGraphSCCPass manager may require other passes. 
Use schedulePass() to accomodate these requirement instead of directly
assigning a manager to new CallGraph PassManager.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37695 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-21 22:29:02 +00:00
Dan Gohman
5cec4db6ae 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37657 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-19 14:28:31 +00:00
Dan Gohman
f50cd749e1 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37628 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 19:30:09 +00:00
Anton Korobeynikov
03265f98a3 Make BasicAliasAnalysis correctly register itself. Patch by Devang 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37627 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-18 17:13:29 +00:00
Dan Gohman
0f0eb18add Fold a binary operator with constant operands when expanding code for a SCEV. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37602 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-15 19:21:55 +00:00
Dan Gohman
d19534add9 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37591 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-15 14:38:12 +00:00
Devang Patel
4d42dea253 Break DominatorTree from ETNode. 
Remove unused PostETForest.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37551 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-12 00:54:38 +00:00
Devang Patel
53c279b194 Use DominatorTree instead of ETForest. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37507 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-08 00:17:13 +00:00
Devang Patel
6ea7ac6a1e Use DominatorTree instead of ETForest. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37505 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-07 23:53:38 +00:00
Devang Patel
9a51157db5 Maintain ETNode as part of DomTreeNode. 
This adds redundancy for now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37492 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-07 17:47:21 +00:00
Nick Lewycky
51e844b601 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37469 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-06 11:26:20 +00:00
Nick Lewycky
9d0332f7b4 Fix PR1487 and Transforms/IndVar/2007-06-06-DeleteDanglesPtr.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37459 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-06 04:12:20 +00:00
Devang Patel
a301a16841 Fix PR 1497 
Use separate pass id for CFGOnlyPrinter.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37439 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-05 20:24:36 +00:00
Devang Patel
26042420d6 s/llvm::DominatorTreeBase::DomTreeNode/llvm::DomTreeNode/g 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37407 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-04 00:32:22 +00:00
Devang Patel
bec7647f98 s/DominatorTreeBase::Node/DominatorTreeBase:DomTreeNode/g 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37403 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-03 06:26:14 +00:00
Chris Lattner
f711fb7af8 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37305 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-23 06:36:35 +00:00
Dan Gohman
a196b993e0 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37033 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-14 14:25:08 +00:00
Nick Lewycky
ecd94c804a Fix typo in comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36873 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-06 13:37:16 +00:00
Devang Patel
1997473cf7 Drop 'const' 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36662 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-03 01:11:54 +00:00
Devang Patel
3e15bf33e0 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36652 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-02 21:39:20 +00:00
Lauro Ramos Venancio
c718288f49 Fix build error. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36648 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-02 20:37:47 +00:00
Devang Patel
794fd75c67 Do not use typeinfo to identify pass in pass manager. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36632 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-01 21:15:47 +00:00
Zhou Sheng
843f0767ac Make use of ConstantInt::isZero instead of ConstantInt::isNullValue. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36261 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-19 05:39:12 +00:00
Devang Patel
5a713cc72f Cache DT[*SI] lookup. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36239 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-18 01:19:55 +00:00
Devang Patel
7cc6dcf6e0 Fix 
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070416/047971.html


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36236 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-18 00:53:01 +00:00
Chris Lattner
b1b2f0bc44 Be more careful when inserting reused instructions. This fixes CodeGen/Generic/2007-04-17-lsr-crash.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36231 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 23:43:50 +00:00