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50770 Commits

Author SHA1 Message Date
Chris Lattner 482713e14a Fix sentinels to use correctly 'aligned' pointers. 
llvm-svn: 60229
 2008-11-29 01:36:16 +00:00
Chris Lattner 2774a41b96 Fix spello, add DenseMapInfo specialization for PointerIntPair. 
llvm-svn: 60228
 2008-11-29 01:18:05 +00:00
Chris Lattner 06db5255c3 fix comment typo 
llvm-svn: 60227
 2008-11-28 23:57:26 +00:00
Chris Lattner 9d72ff710e Switch QualType to use llvm::PointerIntPair internally to do the pointer 
bitmangling.

llvm-svn: 60226
 2008-11-28 23:37:31 +00:00
Chris Lattner 845d731670 fix a bug. 
llvm-svn: 60225
 2008-11-28 23:36:15 +00:00
Chris Lattner 7602e4bdbf add a generic "bitmangled pointer" class, which allows a parameterized 
pointer and integer type to be used.

llvm-svn: 60224
 2008-11-28 23:31:44 +00:00
Chris Lattner d3d9111ede Fix PR3141 by ensuring that MemoryDependenceAnalysis::removeInstruction 
properly updates the reverse dependency map when it installs updated 
dependencies for instructions that depend on the removed instruction.

llvm-svn: 60222
 2008-11-28 22:51:08 +00:00
Chris Lattner f3f6a801cc don't revisit instructions off the beginning of the block. 
llvm-svn: 60221
 2008-11-28 22:50:08 +00:00
Chris Lattner 08f3c00562 comment cleanups. 
llvm-svn: 60220
 2008-11-28 22:41:36 +00:00
Chris Lattner 73c254593e more cleanups for MemoryDependenceAnalysis::removeInstruction, 
no functionality change.

llvm-svn: 60219
 2008-11-28 22:28:27 +00:00
Chris Lattner a25d3952c6 random cleanups, no functionality change. 
llvm-svn: 60218
 2008-11-28 22:04:47 +00:00
Chris Lattner 2916a4b589 forward declare CallSite instead of #includ'ing it. 
llvm-svn: 60217
 2008-11-28 21:47:19 +00:00
Chris Lattner 554d1221aa Run verifyRemoved from removeInstruction when -debug is specified. 
This shows the root problem behind PR3141.

llvm-svn: 60216
 2008-11-28 21:45:17 +00:00
Chris Lattner e5fd5c29de rename "ping" to "verifyRemoved". I don't know why 'ping' what chosen, 
but it doesn't make any sense at all.

Also make the method const, private, and fit in 80 cols while we're at it.

llvm-svn: 60215
 2008-11-28 21:42:09 +00:00
Chris Lattner cfa414fe9e comment and indentation improvements. 
llvm-svn: 60214
 2008-11-28 21:36:43 +00:00
Chris Lattner f2a8ba4cf0 simplify some code, remove escaped newline. 
llvm-svn: 60213
 2008-11-28 21:29:52 +00:00
Chris Lattner dca2cd3562 remove mysterious escaped newlines. 
llvm-svn: 60211
 2008-11-28 21:16:44 +00:00
Chris Lattner 8a172daa55 don't call MergeBasicBlockIntoOnlyPred on a block whose only 
predecessor is itself.  This doesn't make sense, and this is
a dead infinite loop anyway.

llvm-svn: 60210
 2008-11-28 19:54:49 +00:00
Duncan Sands 71ecd67b5d Add include files needed when building with 
gcc 4.4 (due to use of sprintf).

llvm-svn: 60209
 2008-11-28 10:20:03 +00:00
Duncan Sands 595a4423dc Fix build with gcc-4.4: it doesn't like PICStyle 
being both a namespace and a variable name.

llvm-svn: 60208
 2008-11-28 09:29:37 +00:00
Zhongxing Xu e31a8ebfdc Fix a serious bug. 
When initialized, the index of the ElementRegion was unsigned. But the index
value of the ArraySubscriptExpr is signed. This inconsistency caused the value
of the array element retrieved to be UnknownVal despite it was initialized to
symbolic.

This is only a hack. Real fix of this problem is required.

llvm-svn: 60207
 2008-11-28 08:41:39 +00:00
Zhongxing Xu 33178a0993 Code cleanup. No functional change. 
llvm-svn: 60206
 2008-11-28 08:34:30 +00:00
Zhongxing Xu 85b6e201f4 Use std::make_pair instead of std::pair's ctor. 
llvm-svn: 60205
 2008-11-28 03:55:52 +00:00
Zhongxing Xu 3698bdb417 Enable the GRStateManager to do something when we finish a path. For example, 
the ConstraintManager can print its internal state before its solver instance is
destroyed.

llvm-svn: 60204
 2008-11-28 03:07:05 +00:00
Chris Lattner e9f6c355bf rewrite RecursivelyDeleteTriviallyDeadInstructions to use a more efficient 
formulation that doesn't require set lookups or scanning a set.

llvm-svn: 60203
 2008-11-28 01:20:46 +00:00
Chris Lattner d4b5ba615e remove some weirdness that came from the LSR code that has 
nothing to do with dead instruction elimination.  No tests in
dejagnu depend on this, so I don't know what it was needed for.

llvm-svn: 60202
 2008-11-28 00:58:15 +00:00
Chris Lattner 1adb6759ef rewrite a big chunk of how DSE does recursive dead operand 
elimination to use more modern infrastructure.  Also do a bunch
of small cleanups.

llvm-svn: 60201
 2008-11-28 00:27:14 +00:00
Mikhail Glushenkov 7283d44569 Scrap some boilerplate. 
llvm-svn: 60200
 2008-11-28 00:14:11 +00:00
Mikhail Glushenkov cc2d0b2c4c Support multiple compilation graph definitions. Not terribly useful, but makes the code more generic. 
llvm-svn: 60199
 2008-11-28 00:13:47 +00:00
Mikhail Glushenkov 3bb3da6f4c Add 'hidden' and 'really_hidden' option properties. 
llvm-svn: 60198
 2008-11-28 00:13:25 +00:00
Mikhail Glushenkov 4ad34cbdc0 Documentation: clarify what is meant by 'multiple edges'. 
llvm-svn: 60197
 2008-11-28 00:12:09 +00:00
Chris Lattner 8e84c129ce delete ErasePossiblyDeadInstructionTree, replacing uses of it with 
RecursivelyDeleteTriviallyDeadInstructions.

llvm-svn: 60196
 2008-11-27 23:25:44 +00:00
Chris Lattner c077a2a535 Simplify LoopStrengthReduce::DeleteTriviallyDeadInstructions by 
making it use RecursivelyDeleteTriviallyDeadInstructions to do
the heavy lifting.

llvm-svn: 60195
 2008-11-27 23:23:35 +00:00
Chris Lattner a1bbdff933 enhance RecursivelyDeleteTriviallyDeadInstructions to make 
PHIs dead if they are single-value.

llvm-svn: 60194
 2008-11-27 23:18:11 +00:00
Chris Lattner 1cb4f72706 Enhance RecursivelyDeleteTriviallyDeadInstructions to optionally 
return a list of deleted instructions.

llvm-svn: 60193
 2008-11-27 23:14:34 +00:00
Chris Lattner 96e2dbe008 use continue to reduce indentation 
llvm-svn: 60192
 2008-11-27 23:00:20 +00:00
Chris Lattner c6c481cdfc remove doConstantPropagation and dceInstruction, they are just 
wrappers around the interesting code and use an obscure iterator
abstraction that dates back many many years.

Move EraseDeadInstructions to Transforms/Utils and name it
RecursivelyDeleteTriviallyDeadInstructions.

llvm-svn: 60191
 2008-11-27 22:57:53 +00:00
Chris Lattner 5ef9ebf787 simplify code. 
llvm-svn: 60190
 2008-11-27 22:56:14 +00:00
Chris Lattner c92fa42ddd simplify this logic. 
llvm-svn: 60189
 2008-11-27 22:46:09 +00:00
Nick Lewycky edd5d3e4e9 Also update the README. 
llvm-svn: 60188
 2008-11-27 22:41:45 +00:00
Nick Lewycky 4ab50b93c8 Chris prefers icmp/select over udiv! 
llvm-svn: 60187
 2008-11-27 22:41:10 +00:00
Nick Lewycky b3dc4ad5b4 Add a synthetic missed optimization. 
llvm-svn: 60186
 2008-11-27 22:12:22 +00:00
Nick Lewycky 69941fd0a0 Add a couple of missed optimizations on integer vectors. Multiply and divide 
by 1, as well as multiply by -1.

llvm-svn: 60182
 2008-11-27 20:21:08 +00:00
Chris Lattner e85cb38d5c remove dead diag 
llvm-svn: 60181
 2008-11-27 19:33:39 +00:00
Chris Lattner 4059f43b74 defensive patch: if CGP is merging a block with the entry block, make sure 
it ends up being the entry block.

llvm-svn: 60180
 2008-11-27 19:29:14 +00:00
Chris Lattner 5dfbfcd80d Fix PR3138: if we merge the entry block into another block, make sure to 
move the other block back up into the entry position!

llvm-svn: 60179
 2008-11-27 19:25:19 +00:00
Nick Lewycky 2c96bdd8d6 Silence a warning. 
Despite changing the order of evaluation, this doesn't actually change the
meaning of the statement.

llvm-svn: 60177
 2008-11-27 17:29:52 +00:00
Nuno Lopes 50343cd2fe fix build on some machines. thanks buildbot 
llvm-svn: 60175
 2008-11-27 16:42:44 +00:00
Nuno Lopes d5c2a144e1 fix my previous commit r60064: compare strings instead of pointers 
llvm-svn: 60174
 2008-11-27 16:37:02 +00:00
Chris Lattner e0d019def6 switch InstCombine::visitLoadInst to use 
FindAvailableLoadedValue

llvm-svn: 60169
 2008-11-27 08:56:30 +00:00