ec7a6ecb92
Now that hasConstantValue has been made simpler, it may return the
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phi node itself if it occurs in an unreachable basic block. Protect
against this. Hopefully this will fix some more buildbots.
llvm-svn: 119493
2010-11-17 10:23:23 +00:00
c268ced34e
Skip debug info when looking for existing EH calls at the
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beginning of a block.
llvm-svn: 100230
2010-04-02 21:49:27 +00:00
086bb4ef82
Qualify a bunch of explicit template instantiations to satisfy clang++.
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llvm-svn: 91736
2009-12-19 00:55:12 +00:00
a48f44d9ee
improve portability to avoid conflicting with std::next in c++'0x.
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Patch by Howard Hinnant!
llvm-svn: 90365
2009-12-03 00:50:42 +00:00
aa99c94e2a
Revert 85678/85680. The decision is to stay with the current form of
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indirectbr, thus we don't need "blockaddr(@func, null)". Eliminate it
for simplicity.
llvm-svn: 85699
2009-11-01 01:27:45 +00:00
b2c0e243c5
Make blockaddress(@func, null) be valid, and make 'deleting a basic
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block with a blockaddress still referring to it' replace the invalid
blockaddress with a new blockaddress(@func, null) instead of a
inttoptr(1).
This changes the bitcode encoding format, and still needs codegen
support (this should produce a non-zero value, referring to the entry
block of the function would also be quite reasonable).
llvm-svn: 85678
2009-10-31 20:08:37 +00:00
dd5d035302
if basic blocks are destroyed while there are *just* BlockAddress' hanging
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around, then zap them. This is analogous to dangling constantexprs hanging
off functions.
llvm-svn: 85627
2009-10-30 22:39:36 +00:00
74eb5d71a3
make hasAddressTaken() constant time by storing a refcount in BB's subclass data.
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llvm-svn: 85625
2009-10-30 22:33:29 +00:00
3903320a48
Add a hasAddressTaken for BasicBlock.
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llvm-svn: 85449
2009-10-29 00:09:08 +00:00
55f1c09e31
Push LLVMContexts through the IntegerType APIs.
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llvm-svn: 78948
2009-08-13 21:58:54 +00:00
7c50c9bd63
Tidy #includes.
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llvm-svn: 78677
2009-08-11 16:02:12 +00:00
b292b8ce70
Move more code back to 2.5 APIs.
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llvm-svn: 77635
2009-07-30 23:03:37 +00:00
4975db6276
Initial update to VMCore to use Twines for string arguments.
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- The only meat here is in Value.{h,cpp} the rest is essential 'const
std::string &' -> 'const Twine &'.
llvm-svn: 77048
2009-07-25 04:41:11 +00:00
47db941fd3
Get rid of the Pass+Context magic.
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llvm-svn: 76702
2009-07-22 00:24:57 +00:00
155dccd87c
LLVMContext-ification.
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llvm-svn: 74973
2009-07-07 23:43:39 +00:00
38264b1554
"LLVMContext* " --> "LLVMContext *"
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llvm-svn: 74878
2009-07-06 23:00:19 +00:00
e70b637033
More LLVMContext-ification.
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llvm-svn: 74807
2009-07-05 22:41:43 +00:00
51bbcf834c
simplify the way how traits get hold of the symbol table
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llvm-svn: 66336
2009-03-07 12:33:24 +00:00
6e1ca84d2c
further simplifications arising from peruse of the more declarative interface
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llvm-svn: 66333
2009-03-07 10:49:57 +00:00
bf4da856e4
Introduce a new technique for merging BasicBlock with Instruction sentinel by superposition.
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This looks dangerous, but isn't because the sentinel is accessed in special way only,
namely the Next and Prev fields of it, and these are guaranteed to exist.
llvm-svn: 65626
2009-02-27 08:41:37 +00:00
32bfb5de34
fix grammar, thanks Duncan!
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llvm-svn: 60875
2008-12-11 11:44:49 +00:00
c808012918
introduce BasicBlock::getUniquePredecessor()
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llvm-svn: 60872
2008-12-11 10:36:07 +00:00
804c95df52
Fold the useful features of alist and alist_node into ilist, and
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a new ilist_node class, and remove them. Unlike alist_node,
ilist_node doesn't attempt to manage storage itself, so it avoids
the associated problems, including being opaque in gdb.
Adjust the Recycler class so that it doesn't depend on alist_node.
Also, change it to use explicit Size and Align parameters, allowing
it to work when the largest-sized node doesn't have the greatest
alignment requirement.
Change MachineInstr's MachineMemOperand list from a pool-backed
alist to a std::list for now.
llvm-svn: 54146
2008-07-28 21:51:04 +00:00
a3de9e4576
back out last commit: The .cpp file for a module should include its corresponding header first, even if redundant.
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llvm-svn: 51598
2008-05-27 17:26:02 +00:00
6974e1d380
prune unneeded #includes
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llvm-svn: 51590
2008-05-27 11:06:03 +00:00
f96e1371e8
Tidy up BasicBlock::getFirstNonPHI, and change a bunch of places to
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use it instead of duplicating its functionality.
llvm-svn: 51499
2008-05-23 21:05:58 +00:00
4d43d3c72c
Remove 'unwinds to' support from mainline. This patch undoes r47802 r47989
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r48047 r48084 r48085 r48086 r48088 r48096 r48099 r48109 and r48123.
llvm-svn: 50265
2008-04-25 16:53:59 +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
cc24104703
Two things. Preserve the unwind_to when splitting a BB.
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Add the ability to remove just one instance of a BB from a phi node. This fixes
the compile error in the tree now.
llvm-svn: 48085
2008-03-09 05:04:48 +00:00
3cc9be0b59
Add an unwind_to field to basic blocks, making them Users instead of Values.
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This is the first checkin for PR1269, the new EH infrastructure.
llvm-svn: 47802
2008-03-02 02:48:09 +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
14a5569f4e
Reverting dtor devirtualization patch.
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_sabre_: it has a major problem: by the time ~Value is run, all of the "parts" of the derived classes have been destroyed
_sabre_: the vtable lives to fight another day
llvm-svn: 44760
2007-12-10 02:14:30 +00:00
3e5be66ccb
Devirtualizing Value destructor (PR889). Patch by Pawel Kunio!
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llvm-svn: 44747
2007-12-09 22:46:10 +00:00
aad83c8ee5
Remove meaningless qualifiers from return types, avoiding compiler warnings.
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llvm-svn: 44240
2007-11-19 20:46:23 +00:00
f2af2bb6aa
DummyInst's member functions don't need to be virtual.
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llvm-svn: 40530
2007-07-26 15:25:08 +00:00
422cfcdcb3
The (negative) offset from a SymbolTableListTraits-using ilist to its container
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object is always constant. As such, evaluate it at compile time instead of storing
it as an ivar in SymbolTableListTraits. This shrinks every SymbolTableListTraits
ilist by a word, shrinking BasicBlock from 44->40 bytes, Function from 96->88 bytes,
and Module from 60->52 bytes.
llvm-svn: 36189
2007-04-17 04:04:14 +00:00
b47aa543bb
Refactor SymbolTableListTraits to only have a single pointer in it, instead
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of two. This shrinkifies Function by 8 bytes (104->96) and Module by 8
bytes (68->60). On a testcase of mine, this reduces the memory used to
read a module header from 565680b to 561024, a little over 4K.
llvm-svn: 36188
2007-04-17 03:26:42 +00:00
32ab643df7
Switch ValueSymbolTable to use StringMap<Value*> instead of std::map<std::string, Value*>
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as its main datastructure. There are many improvements yet to be made, but
this speeds up opt --std-compile-opts on 447.dealII by 7.3%.
llvm-svn: 34193
2007-02-12 05:18:08 +00:00
4091f4690a
add method, correct comment
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llvm-svn: 30584
2006-09-23 04:03:45 +00:00
3d27be1333
s|llvm/Support/Visibility.h|llvm/Support/Compiler.h|
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llvm-svn: 29911
2006-08-27 12:54:02 +00:00
d6cba04607
Use hidden visibility to reduce codesize
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llvm-svn: 28974
2006-06-28 22:57:00 +00:00
4e744af80c
When asked not to delete useless PHIs, really don't delete them, no matter how
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redundant they are.
llvm-svn: 28777
2006-06-14 04:43:14 +00:00
9bc4009e9b
Remove dead code.
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llvm-svn: 28725
2006-06-08 16:03:13 +00:00
b5b6dc49e2
New method BasicBlock::getFirstNonPHI.
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llvm-svn: 28724
2006-06-08 15:46:18 +00:00
e09bbc800c
Add a helper method
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llvm-svn: 22768
2005-08-12 22:14:06 +00:00
1749aaa5e6
Fix an iterator invalidation problem when we decide a phi has a constant value
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llvm-svn: 22675
2005-08-05 15:34:10 +00:00
6f58350daf
Now that hasConstantValue is more careful w.r.t. returning values that only
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dominate the PHI node, this code can go away. This also makes passes more
aggressive, e.g. implementing Transforms/CondProp/phisimplify2.ll
llvm-svn: 22670
2005-08-05 01:02:04 +00:00
b392321cae
Fix a fixme in CondPropagate.cpp by moving a PhiNode optimization into
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BasicBlock's removePredecessor routine. This requires shuffling around
the definition and implementation of hasContantValue from Utils.h,cpp into
Instructions.h,cpp
llvm-svn: 22664
2005-08-04 23:24:19 +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
Duncan Sands