Bill Wendling
851879c4cf
Patches by Chuck Rose to unbreak V Studio builds.
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Thanks Chuck!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37428 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-04 23:52:59 +00:00
Dale Johannesen
fe7e397100
Tail merging wasn't working for predecessors of landing pads. PR 1496.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37427 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-04 23:52:54 +00:00
Devang Patel
170f2b9bef
s/ETNode::getChildren/ETNode::getETNodeChildren/g
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37426 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-04 23:45:02 +00:00
Owen Anderson
dbc705b73f
Don't use std::set_difference when the two sets are sorted differently. Compute
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the difference manually instead.
This allows GVNPRE to produce correct analysis for the example in the GVNPRE
paper.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37425 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-04 23:34:56 +00:00
Owen Anderson
082fe7185e
Fix a bunch of small bugs, and improve the debugging output significantly.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37424 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-04 23:28:33 +00:00
Chris Lattner
f0a9aaba4c
When rebuilding constant structs, make sure to honor the isPacked bit.
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This fixes PR1491 and GlobalOpt/2007-06-04-PackedStruct.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37423 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-04 22:23:42 +00:00
Chris Lattner
f3bee46792
new testcase for PR1491
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37422 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-04 22:23:17 +00:00
Evan Cheng
916d07cdfa
Global ctors / dtors alignment shouldn't be hard-coded at 4. e.g. It could be 8 for 64-bit targets.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37421 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-04 20:39:18 +00:00
Evan Cheng
3ec425470f
Forgot to check for if iterator reached the end.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37420 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-04 20:33:36 +00:00
Evan Cheng
111354ff99
Misuse of hasExternalLinkage(), should be checking isDeclaration().
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37419 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-04 18:54:57 +00:00
Owen Anderson
5ea069fdda
Make phi_translate correct.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37418 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-04 18:05:26 +00:00
Devang Patel
055756bf52
Add FIXMEs.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37417 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-04 17:38:00 +00:00
Devang Patel
bbf8c8e71f
Remove unused method.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37416 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-04 16:49:36 +00:00
Devang Patel
83beaee227
s/DominatorTree::createNewNode/DominatorTree::addNewBlock/g
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37415 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-04 16:43:25 +00:00
Devang Patel
26a6908768
Add basic block level interface to change immediate dominator
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and create new node.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37414 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-04 16:22:33 +00:00
Dan Gohman
3983358555
Pass the DAG to SDNode::dump to let it do more detailed dumps in some cases.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37413 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-04 16:17:33 +00:00
Dan Gohman
b9daee9ece
Remove the operator<< for MVT::ValueType in preparation for MVT::ValueType
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being changed from an enum to an integer type, which can't have a custom
operator<< overload.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37412 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-04 16:11:03 +00:00
Dan Gohman
575e2f4ea8
Resolve implicit alignment before computing the FoldingSet information so
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that the CSE map always contains explicit alignment information. This allows
more loads to be CSE'd when there is a mix of explicit-alignment loads and
implicit-alignment loads.
Also, in SelectionDAG::FindModifiedNodeSlot, add the operands to the
FoldingSetNodeID before the load/store information instead of after, so
that it matches what is done elsewhere.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37411 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-04 15:49:41 +00:00
Devang Patel
69bdf68fe6
Fix LLVM build on NetBSD. Patch by Neil Booth.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37410 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-04 15:28:57 +00:00
Evan Cheng
b6665f62c5
Let IfConverter loose. Allow more aggressive subsumptions; reorder basic blocks to expose more ifcvt opportunities; code clean up and fixes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37409 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-04 06:47:22 +00:00
Evan Cheng
0370fad74b
Move ReplaceUsesOfBlockWith() out of BranchFolding into a MachineBasicBlock general facility.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37408 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-04 06:44:01 +00:00
Devang Patel
26042420d6
s/llvm::DominatorTreeBase::DomTreeNode/llvm::DomTreeNode/g
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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
Owen Anderson
0fa6b37c6f
Don't use the custom comparator where it's not necessary.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37406 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-03 22:02:14 +00:00
Anton Korobeynikov
fb45086027
Add comments to fallsthrough cases. Also, this fixes PR1492
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37405 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-03 19:20:49 +00:00
Anton Korobeynikov
499d8f0c3b
Check arguments & return types of main(). Abort in case of no match.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37404 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-03 19:17:35 +00:00
Devang Patel
bec7647f98
s/DominatorTreeBase::Node/DominatorTreeBase:DomTreeNode/g
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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
Owen Anderson
10ac137d0b
Remove an unused method.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37402 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-03 05:58:25 +00:00
Owen Anderson
a724ac1a73
There's no need to have an Expression class... Value works just as well! This simplifies a lot of code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37401 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-03 05:55:58 +00:00
Chris Lattner
c621ae7bba
update this entry, now that Anton implemented shift/and lowering for
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switches. There is one really easy isel thing here with tst we are not
getting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37400 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-02 18:45:14 +00:00
Duncan Sands
09085fe63d
The semantics of invoke require that we always jump to the unwind block
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(landing pad) when an exception unwinds through the call. This doesn't
quite match the way the dwarf unwinder works: by default it only jumps to
the landing pad if the catch or filter specification matches, and otherwise
it keeps on unwinding. There are two ways of specifying to the unwinder
that it should "always" (more on why there are quotes here later) jump to
the landing pad: follow the specification by a 0 typeid, or follow it by
the typeid for the NULL typeinfo. GCC does the first, and this patch makes
LLVM do the same as gcc. However there is a problem: the unwinder performs
optimizations based on C++ semantics (it only expects destructors to be
run if the 0 typeid fires - known as "cleanups"), meaning it assumes that no
exceptions will be raised and that the raised exception will be reraised
at the end of the cleanup code. So if someone writes their own LLVM code
using the exception intrinsics they will get a nasty surprise if they don't
follow these rules. The other possibility of using the typeid corresponding
to NULL (catch-all) causes the unwinder to make no assumptions, so this is
probably what we should use in the long-run. However since we are still
having trouble getting exception handling working properly, for the moment
it seems best to closely imitate GCC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37399 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-02 17:16:06 +00:00
Duncan Sands
73ef58ab92
Integrate exception filter support and exception catch support. This
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simplifies the code in DwarfWriter, allows for multiple filters and
makes it trivial to specify filters accompanied by cleanups or catch-all
specifications (see next patch). What a deal! Patch blessed by Anton.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37398 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-02 16:53:42 +00:00
Zhou Sheng
02031c0ff8
Make LowerCTPOP() support arbitrary bitwidth integer type.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37397 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-02 04:10:33 +00:00
Dale Johannesen
8e63bf375d
Fix CorrectExtraCFGEdges to allow for multiple LandingPad targets.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37394 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-02 00:08:15 +00:00
Dale Johannesen
b468163869
Fancier algorithm in tail-merge comment implemented, so remove comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37393 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-01 23:04:28 +00:00
Dale Johannesen
a5a2117a46
Implement smarter algorithm for choosing which blocks to tail-merge.
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See test/CodeGen/X86/test-pic-jtbl.ll for a case where it works well;
shaves another 10K off our favorite benchmark. I was hesitant about
this because of compile speed, but seems to do OK on a bootstrap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37392 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-01 23:02:45 +00:00
Reid Spencer
e770787be1
For PR1486:
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Avoid overwriting the APInt instance with 0 bytes which causes the bitwidth
to be set to 0 (illegal) producing a subsequent assert.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37391 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-01 22:23:29 +00:00
Devang Patel
e7ae1a9dee
Insert new instructions in AliasSet.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37390 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-01 22:15:31 +00:00
Owen Anderson
aa7d3351f0
clean() needs to process things in topological order.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37389 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-01 22:00:37 +00:00
Evan Cheng
c354334ac4
Opcode modifier s comes after condition code. e.g. addlts, not addslt.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37388 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-01 20:51:29 +00:00
Evan Cheng
b5a0690788
Correctly mark early-exit on the false path.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37387 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-01 20:29:21 +00:00
Owen Anderson
8e21fb7df8
Fix Expression comparison, which in turn fixes a value numbering error.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37386 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-01 17:34:47 +00:00
Evan Cheng
144fd1ff0f
Set ARM ifcvt duplication limit to 3 for now.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37385 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-01 08:28:59 +00:00
Evan Cheng
59aefd15e5
Target specific ifcvt code duplication limit.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37384 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-01 08:25:24 +00:00
Duncan Sands
398898cc6a
Since TypeInfos are passed as i8 pointers, a NULL TypeInfo should be passed
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as a null i8 pointer not as a 0 i32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37383 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-01 08:18:30 +00:00
Evan Cheng
8c52938e44
Ifcvt triangle: don't ifcvt 'true' BB if it has other predecessors; don't merge 'false' BB if it has other predecessors.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37382 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-01 07:41:07 +00:00
Evan Cheng
df4da14948
Make jumptable non-predicable for now.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37381 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-01 00:56:15 +00:00
Evan Cheng
fe57a7e4df
Remove a bogus check. Even terminators in a ifcvt need to be predicated. Unconditional branches can usually be converted to conditional ones.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37380 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-01 00:55:26 +00:00
Evan Cheng
5f70218c75
Allow multiple ifcvt candidates to share children blocks; add some debugging code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37379 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-01 00:12:12 +00:00
Owen Anderson
243f348c2a
Add a topological sort function.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37376 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-31 22:44:11 +00:00
Dale Johannesen
a52dd15137
Arrange for only 1 of multiple branches to landing pad to be kept.
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Do not remove empty landing pads (EH table needs to be updated)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37375 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-31 21:54:00 +00:00