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19050 Commits

Author SHA1 Message Date
Evan Cheng
916d07cdfa Global ctors / dtors alignment shouldn't be hard-coded at 4. e.g. It could be 8 for 64-bit targets. 
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. 
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(). 
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. 
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. 
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
83beaee227 s/DominatorTree::createNewNode/DominatorTree::addNewBlock/g 
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 
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. 
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
575e2f4ea8 Resolve implicit alignment before computing the FoldingSet information so 
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. 
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. 
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. 
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 
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. 
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 
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. 
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 
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. 
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. 
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 
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 
(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 
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. 
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. 
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. 
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. 
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: 
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. 
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. 
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. 
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. 
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. 
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. 
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
Duncan Sands
398898cc6a Since TypeInfos are passed as i8 pointers, a NULL TypeInfo should be passed 
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. 
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. 
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. 
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. 
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. 
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. 
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
Evan Cheng
f15d44cc10 Fix a typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37374 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-31 20:53:33 +00:00
Chris Lattner
3a4205367d Fix the asmprinter so that a globalvalue can specify an explicit alignment 
smaller than the preferred alignment, but so that the target can actually
specify a minimum alignment if needed.  This fixes some objc protocol
failures Devang tracked down.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37373 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-31 18:57:45 +00:00
Lauro Ramos Venancio
8d410b6938 Fix PR1424. 
When a function has FP, the register scavenging spill slot offset already
was calculated.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37371 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-31 18:27:58 +00:00
Owen Anderson
8214d50338 Attempt to fix up phi_translate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37366 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-31 00:42:15 +00:00
Evan Cheng
8258210ed4 Change traversal order to bottom up in preparation for more aggressive if-conversion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37365 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-30 19:49:19 +00:00
Chris Lattner
4e7e6cd13a Fix CodeGen/PowerPC/2007-05-30-dagcombine-miscomp.ll, and PR1473. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37362 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-30 16:30:06 +00:00
Devang Patel
f38ac5dd39 Fix typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37360 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-30 15:29:37 +00:00
Chris Lattner
39a1c04323 Fix Transforms/ScalarRepl/2007-05-29-MemcpyPreserve.ll and the second 
half of PR1421, by not decimating structs with holes that are the source and
destination of a memcpy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37358 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-30 06:11:23 +00:00
Dale Johannesen
44008c5918 Changed per review comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37355 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-30 00:32:01 +00:00
Dale Johannesen
95ef406e0f Make stable_sort in tail merging actually be stable (it never was, but didn't 
matter until my last change).  Reenable tail merging by default.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37354 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-29 23:47:50 +00:00