28943873e6
Use do+while instead of while for loops which obviously have a
...
non-zero trip count. Use SmallVector's pop_back_val().
llvm-svn: 92734
2010-01-05 16:27:25 +00:00
2dd09dbdf7
eliminate VISIBILITY_HIDDEN from Transforms/Scalar. PR4861
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llvm-svn: 80766
2009-09-02 06:11:42 +00:00
1efabaaa2a
Allow readonly functions to unwind exceptions. Teach
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the optimizers about this. For example, a readonly
function with no uses cannot be removed unless it is
also marked nounwind.
llvm-svn: 71071
2009-05-06 06:49:50 +00:00
df4226c0e2
Re-commit 65975 and a fix for the problem that
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was causing llvm-gcc to fail to build. I've
verified it bootstraps now; good enough for me.
llvm-svn: 66073
2009-03-04 21:24:04 +00:00
827bced2b1
Let instcombiner remove redundant dbg intrinsics.
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llvm-svn: 59658
2008-11-19 18:59:41 +00:00
53b39b5467
Cleanup debug info. assocated with deleted instructions.
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llvm-svn: 59012
2008-11-11 00:54:10 +00:00
a79db30d28
Tidy up several unbeseeming casts from pointer to intptr_t.
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llvm-svn: 55779
2008-09-04 17:05:41 +00:00
d57cdc3c60
Remove the ability for ADCE to remove unreachable blocks in loop nests, because, as Eli pointed out, SimplifyCFG already does this.
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llvm-svn: 53104
2008-07-03 17:21:41 +00:00
488b89f608
Use df_ext_iterator to capture the reachable set without allocating an extra set.
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Also, move large sets and vectors out of instance variables and onto the stack,
and give them more reasonable sizes.
llvm-svn: 53044
2008-07-02 18:41:09 +00:00
323b5755a6
Add support to ADCE for pruning unreachable blocks. This addresses the final
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part of PR2509.
llvm-svn: 53038
2008-07-02 18:05:19 +00:00
9edcf24da9
Use DenseSet rather than SmallPtrSet for the alive set. Using SmallPtrSet
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with a huge "size" parameter is actually quite inefficient.
llvm-svn: 53034
2008-07-02 17:32:04 +00:00
00fdbd01e5
At Chris' suggestion, move the liveness and worklist datastructures into
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instance variables so they can be allocated just once, and reuse the worklist
as the dead list as well.
llvm-svn: 52618
2008-06-23 06:13:12 +00:00
9e064a2180
Add a newline at the end of this file.
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llvm-svn: 51680
2008-05-29 14:38:23 +00:00
7686b555e2
Replace the old ADCE implementation with a new one that more simply solves
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the one case that ADCE catches that normal DCE doesn't: non-induction variable
loop computations.
This implementation handles this problem without using postdominators.
llvm-svn: 51668
2008-05-29 08:45:13 +00:00
c7d6eceb69
Remove ADCE's ability to delete loops. This ability is now implemented in a
...
safer manner by loop deletion.
llvm-svn: 51182
2008-05-16 04:34:51 +00:00
d78c400b5b
Clean up the use of static and anonymous namespaces. This turned up
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several things that were neither in an anonymous namespace nor static
but not intended to be global.
llvm-svn: 51017
2008-05-13 00:00:25 +00:00
e9ecc68d8f
API changes for class Use size reduction, wave 1.
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Specifically, introduction of XXX::Create methods
for Users that have a potentially variable number of
Uses.
llvm-svn: 49277
2008-04-06 20:25:17 +00:00
f3ebc3f3d2
Remove attribution from file headers, per discussion on llvmdev.
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llvm-svn: 45418
2007-12-29 20:36:04 +00:00
68b6f50938
Integrate the readonly/readnone logic more deeply
...
into alias analysis. This meant updating the API
which now has versions of the getModRefBehavior,
doesNotAccessMemory and onlyReadsMemory methods
which take a callsite parameter. These should be
used unless the callsite is not known, since in
general they can do a better job than the versions
that take a function. Also, users should no longer
call the version of getModRefBehavior that takes
both a function and a callsite. To reduce the
chance of misuse it is now protected.
llvm-svn: 44487
2007-12-01 07:51:45 +00:00
1c97d752df
Readonly/readnone functions are allowed to throw
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exceptions, so don't turn invokes of them into
calls.
llvm-svn: 44278
2007-11-22 21:40:06 +00:00
17a5dfe6f7
New CallInst interface to address GLIBCXX_DEBUG errors caused by
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indexing an empty std::vector.
Updates to all clients.
llvm-svn: 40660
2007-08-01 03:43:44 +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
...
llvm-svn: 37403
2007-06-03 06:26:14 +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'.
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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
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
9421f03959
Revert changes that caused breakage.
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llvm-svn: 36255
2007-04-18 06:46:57 +00:00
fc40d446c9
Use ETForest instead of DominatorTree.
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llvm-svn: 36249
2007-04-18 04:55:33 +00:00
a06a8fd2d7
Eliminate use of ctors that take vectors.
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llvm-svn: 34219
2007-02-13 02:10:56 +00:00
6e0123b17f
Simplify code by using value::takename
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llvm-svn: 34176
2007-02-11 01:23:03 +00:00
557ab15e71
Apply the VISIBILITY_HIDDEN field to the remaining anonymous classes in
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the Transforms library. This reduces debug library size by 132 KB, debug
binary size by 376 KB, and reduces link time for llvm tools slightly.
llvm-svn: 33939
2007-02-05 23:32:05 +00:00
79a42ac941
Switch over Transforms/Scalar to use the STATISTIC macro. For each statistic
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converted, we lose a static initializer. This also allows GCC to emit warnings
about unused statistics.
llvm-svn: 32690
2006-12-19 21:40:18 +00:00
700b873130
Detemplatize the Statistic class. The only type it is instantiated with
...
is 'unsigned'.
llvm-svn: 32279
2006-12-06 17:46:33 +00:00
5dbf43c983
Removed #include <iostream> and replaced with llvm_* streams.
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llvm-svn: 31923
2006-11-26 09:46:52 +00:00
c2d3d3112e
eliminate RegisterOpt. It does the same thing as RegisterPass.
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llvm-svn: 29925
2006-08-27 22:42:52 +00:00
540886f0ae
Remove unneeded hook. Patch by Anton K. Thanks!
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llvm-svn: 28664
2006-06-02 19:11:46 +00:00
f905a7b994
Silence a -pedantic warning.
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llvm-svn: 28632
2006-06-01 17:16:21 +00:00
c597b8a55e
Make iostream #inclusion explicit
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llvm-svn: 25514
2006-01-22 23:32:06 +00:00
bd77fac034
Make sure that anything using the ADCE pass pulls in the UnifyFunctionExitNodes
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code
llvm-svn: 23931
2005-10-24 01:40:23 +00:00
05c703ea85
preserve calling conventions when hacking on code
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llvm-svn: 22024
2005-05-14 12:25:32 +00:00
82639853c0
Eliminate tabs and trailing spaces
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llvm-svn: 21480
2005-04-23 21:38:35 +00:00
b1c9317bb4
Remove trailing whitespace
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llvm-svn: 21427
2005-04-21 23:48:37 +00:00
52e931b37d
Remove use of bind_obj
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llvm-svn: 20276
2005-02-22 23:22:58 +00:00
7b5d9e2217
Do not mark obviously unreachable blocks live when processing PHI nodes,
...
and handle incomplete control dependences correctly. This fixes:
Regression/Transforms/ADCE/dead-phi-edge.ll
-> a missed optimization
Regression/Transforms/ADCE/dead-phi-edge.ll
-> a compiler crash distilled from QT4
llvm-svn: 20227
2005-02-17 19:28:49 +00:00
a199e3c1e2
Change indentation of a whole bunch of code, no real changes here.
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llvm-svn: 18843
2004-12-12 23:49:37 +00:00
14d07db44d
More substantial simplifications and speedups. This makes ADCE about 20% faster
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in some cases.
llvm-svn: 18842
2004-12-12 23:40:17 +00:00
9115eb3024
More minor microoptimizations
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llvm-svn: 18841
2004-12-12 22:44:30 +00:00
d4298781c1
Remove some more set operations
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llvm-svn: 18840
2004-12-12 22:22:18 +00:00
a538439bf0
Reduce number of set operations.
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llvm-svn: 18839
2004-12-12 22:16:13 +00:00
Dan Gohman