Commit Graph

112 Commits

Author SHA1 Message Date
Duncan Sands
23a19572b2 Now that hasConstantValue has been made simpler, it may return the
phi node itself if it occurs in an unreachable basic block.  Protect
against this.  Hopefully this will fix some more buildbots.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119493 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-17 10:23:23 +00:00
Dale Johannesen
7249ef0455 Skip debug info when looking for existing EH calls at the
beginning of a block.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100230 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-02 21:49:27 +00:00
John McCall
c63ca0a71b Qualify a bunch of explicit template instantiations to satisfy clang++.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91736 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-19 00:55:12 +00:00
Chris Lattner
7896c9f436 improve portability to avoid conflicting with std::next in c++'0x.
Patch by Howard Hinnant!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90365 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-03 00:50:42 +00:00
Chris Lattner
cdfc940912 Revert 85678/85680. The decision is to stay with the current form of
indirectbr, thus we don't need "blockaddr(@func, null)".  Eliminate it
for simplicity.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85699 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 01:27:45 +00:00
Chris Lattner
7d83ebcadd Make blockaddress(@func, null) be valid, and make 'deleting a basic
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).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85678 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 20:08:37 +00:00
Chris Lattner
dac8bde235 if basic blocks are destroyed while there are *just* BlockAddress' hanging
around, then zap them.  This is analogous to dangling constantexprs hanging
off functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85627 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-30 22:39:36 +00:00
Chris Lattner
3821176b2e make hasAddressTaken() constant time by storing a refcount in BB's subclass data.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85625 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-30 22:33:29 +00:00
Dan Gohman
eeb8ef1f37 Add a hasAddressTaken for BasicBlock.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85449 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-29 00:09:08 +00:00
Owen Anderson
1d0be15f89 Push LLVMContexts through the IntegerType APIs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78948 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-13 21:58:54 +00:00
Dan Gohman
ffef8acc3e Tidy #includes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78677 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-11 16:02:12 +00:00
Owen Anderson
9e9a0d5fc2 Move more code back to 2.5 APIs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77635 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-30 23:03:37 +00:00
Daniel Dunbar
6e0d1cb309 Initial update to VMCore to use Twines for string arguments.
- The only meat here is in Value.{h,cpp} the rest is essential 'const
   std::string &' -> 'const Twine &'.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77048 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-25 04:41:11 +00:00
Owen Anderson
e922c02019 Get rid of the Pass+Context magic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76702 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22 00:24:57 +00:00
Owen Anderson
f81b57694b LLVMContext-ification.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74973 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-07 23:43:39 +00:00
Owen Anderson
07cf79ef53 "LLVMContext* " --> "LLVMContext *"
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74878 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-06 23:00:19 +00:00
Owen Anderson
0a205a4598 More LLVMContext-ification.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74807 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-05 22:41:43 +00:00
Gabor Greif
0dd2a6a89f simplify the way how traits get hold of the symbol table
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66336 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-07 12:33:24 +00:00
Gabor Greif
7afd3e1599 further simplifications arising from peruse of the more declarative interface
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66333 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-07 10:49:57 +00:00
Gabor Greif
0a0e68a7ea Introduce a new technique for merging BasicBlock with Instruction sentinel by superposition.
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.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65626 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-27 08:41:37 +00:00
Torok Edwin
9053a739e5 fix grammar, thanks Duncan!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60875 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-11 11:44:49 +00:00
Torok Edwin
87f1e7796d introduce BasicBlock::getUniquePredecessor()
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60872 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-11 10:36:07 +00:00
Dan Gohman
fed90b6d09 Fold the useful features of alist and alist_node into ilist, and
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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54146 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-28 21:51:04 +00:00
Gabor Greif
0a4fd1ab7e back out last commit: The .cpp file for a module should include its corresponding header first, even if redundant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51598 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-27 17:26:02 +00:00
Gabor Greif
3d8710e80a prune unneeded #includes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51590 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-27 11:06:03 +00:00
Dan Gohman
02dea8b39f Tidy up BasicBlock::getFirstNonPHI, and change a bunch of places to
use it instead of duplicating its functionality.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51499 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-23 21:05:58 +00:00
Nick Lewycky
280a6e607d Remove 'unwinds to' support from mainline. This patch undoes r47802 r47989
r48047 r48084 r48085 r48086 r48088 r48096 r48099 r48109 and r48123.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50265 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 16:53:59 +00:00
Gabor Greif
051a950000 API changes for class Use size reduction, wave 1.
Specifically, introduction of XXX::Create methods
for Users that have a potentially variable number of
Uses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49277 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-06 20:25:17 +00:00
Nick Lewycky
c6694228fa Two things. Preserve the unwind_to when splitting a BB.
Add the ability to remove just one instance of a BB from a phi node. This fixes
the compile error in the tree now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48085 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-09 05:04:48 +00:00
Nick Lewycky
fc82fabe00 Add an unwind_to field to basic blocks, making them Users instead of Values.
This is the first checkin for PR1269, the new EH infrastructure.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47802 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-02 02:48:09 +00:00
Chris Lattner
4ee451de36 Remove attribution from file headers, per discussion on llvmdev.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45418 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29 20:36:04 +00:00
Gordon Henriksen
afba8fe662 Reverting dtor devirtualization patch.
_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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44760 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-10 02:14:30 +00:00
Gordon Henriksen
ed455c8fa2 Devirtualizing Value destructor (PR889). Patch by Pawel Kunio!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44747 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-09 22:46:10 +00:00
Dan Gohman
50cdabcfd5 Remove meaningless qualifiers from return types, avoiding compiler warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44240 91177308-0d34-0410-b5e6-96231b3b80d8
2007-11-19 20:46:23 +00:00
Dan Gohman
9adcdf2535 DummyInst's member functions don't need to be virtual.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40530 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-26 15:25:08 +00:00
Chris Lattner
f8dfef7437 The (negative) offset from a SymbolTableListTraits-using ilist to its container
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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36189 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17 04:04:14 +00:00
Chris Lattner
17fcdd5e1b Refactor SymbolTableListTraits to only have a single pointer in it, instead
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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36188 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17 03:26:42 +00:00
Chris Lattner
dec628eead Switch ValueSymbolTable to use StringMap<Value*> instead of std::map<std::string, Value*>
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%.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34193 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-12 05:18:08 +00:00
Chris Lattner
a71965b1ad add method, correct comment
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30584 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-23 04:03:45 +00:00
Chris Lattner
a4f0b3a084 s|llvm/Support/Visibility.h|llvm/Support/Compiler.h|
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29911 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-27 12:54:02 +00:00
Chris Lattner
9ef7e06cce Use hidden visibility to reduce codesize
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28974 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-28 22:57:00 +00:00
Owen Anderson
90245d4cbb When asked not to delete useless PHIs, really don't delete them, no matter how
redundant they are.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28777 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-14 04:43:14 +00:00
Vladimir Prus
28962f353b Remove dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28725 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-08 16:03:13 +00:00
Vladimir Prus
dd49dbfe44 New method BasicBlock::getFirstNonPHI.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28724 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-08 15:46:18 +00:00
Chris Lattner
6a13aed525 Add a helper method
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22768 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-12 22:14:06 +00:00
Chris Lattner
80f4d88a97 Fix an iterator invalidation problem when we decide a phi has a constant value
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22675 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05 15:34:10 +00:00
Chris Lattner
1325b42a7d Now that hasConstantValue is more careful w.r.t. returning values that only
dominate the PHI node, this code can go away.  This also makes passes more
aggressive, e.g. implementing Transforms/CondProp/phisimplify2.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22670 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-05 01:02:04 +00:00
Nate Begeman
a83ba0f5c9 Fix a fixme in CondPropagate.cpp by moving a PhiNode optimization into
BasicBlock's removePredecessor routine.  This requires shuffling around
the definition and implementation of hasContantValue from Utils.h,cpp into
Instructions.h,cpp


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22664 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-04 23:24:19 +00:00
Jeff Cohen
9d80930e95 Eliminate tabs and trailing spaces
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21480 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-23 21:38:35 +00:00
Misha Brukman
fd93908ae8 Remove trailing whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21427 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-21 23:48:37 +00:00