554039a914
Add some debug routines to SelectionDAG to dump full DAGs.
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print/dumpWithDepth allows one to dump a DAG up to N levels deep.
dump/printWithFullDepth prints the whole DAG, subject to a depth limit
on 100 in the default case (to prevent infinite recursion).
Have CannotYetSelect to a dumpWithFullDepth so it is clearer exactly
what the non-matching DAG looks like.
llvm-svn: 93538
2010-01-15 19:43:23 +00:00
4f1b0ded75
fix 80-column violations
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llvm-svn: 93487
2010-01-15 00:36:15 +00:00
d49763d200
Update a partially obsolete comment.
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llvm-svn: 93228
2010-01-12 04:32:35 +00:00
d2a1bee2d4
Avoid adding PHI arguments for a predecessor that has gone away when a BRCOND was constant folded.
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This fixes PR5980.
llvm-svn: 93184
2010-01-11 21:02:33 +00:00
0c6defd577
Dan pointed out checking whether a node is dead by comparing its opcode to ISD::DELETED_NODE is not safe. Use a DAGUpdateListener to remove dead nodes from work list instead.
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llvm-svn: 93031
2010-01-09 00:21:08 +00:00
58ec4fec88
ReplaceAllUsesOfValueWith may delete other nodes that the one being replaced. Do not delete dead nodes again.
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llvm-svn: 92988
2010-01-08 02:36:12 +00:00
cdb3889791
Use pop_back_val instead of back()+pop_back.
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llvm-svn: 92918
2010-01-07 17:27:56 +00:00
746012a6c1
Comment.
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llvm-svn: 92850
2010-01-06 19:43:21 +00:00
166a4e6caa
Teach dag combine to fold the following transformation more aggressively:
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(OP (trunc x), (trunc y)) -> (trunc (OP x, y))
Unfortunately this simple change causes dag combine to infinite looping. The problem is the shrink demanded ops optimization tend to canonicalize expressions in the opposite manner. That is badness. This patch disable those optimizations in dag combine but instead it is done as a late pass in sdisel.
This also exposes some deficiencies in dag combine and x86 setcc / brcond lowering. Teach them to look pass ISD::TRUNCATE in various places.
llvm-svn: 92849
2010-01-06 19:38:29 +00:00
ccce8bae14
Avoid going through the LLVMContext for type equality where it's safe to dereference the type pointer.
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llvm-svn: 92726
2010-01-05 13:12:22 +00:00
30ed3ca034
Change errs() to dbgs().
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llvm-svn: 92597
2010-01-05 01:26:11 +00:00
ea6f91ff64
Change SelectCode's argument from SDValue to SDNode *, to make it more
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clear what information these functions are actually using.
This is also a micro-optimization, as passing a SDNode * around is
simpler than passing a { SDNode *, int } by value or reference.
llvm-svn: 92564
2010-01-05 01:24:18 +00:00
a0566979b7
Final step in the metadata API restructuring: move the
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getMDKindID/getMDKindNames methods to LLVMContext (and add
convenience methods to Module), eliminating MetadataContext.
Move the state that it maintains out to LLVMContext.
llvm-svn: 92259
2009-12-29 09:01:33 +00:00
2f2aa2b067
This is a major cleanup of the instruction metadata interfaces that
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I asked Devang to do back on Sep 27. Instead of going through the
MetadataContext class with methods like getMD() and getMDs(), just
ask the instruction directly for its metadata with getMetadata()
and getAllMetadata().
This includes a variety of other fixes and improvements: previously
all Value*'s were bloated because the HasMetadata bit was thrown into
value, adding a 9th bit to a byte. Now this is properly sunk down to
the Instruction class (the only place where it makes sense) and it
will be folded away somewhere soon.
This also fixes some confusion in getMDs and its clients about
whether the returned list is indexed by the MDID or densely packed.
This is now returned sorted and densely packed and the comments make
this clear.
This introduces a number of fixme's which I'll follow up on.
llvm-svn: 92235
2009-12-28 23:41:32 +00:00
7093946ab1
rename getMDKind -> getMDKindID, make it autoinsert if an MD Kind
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doesn't exist already, eliminate registerMDKind. Tidy up a bunch
of random stuff.
llvm-svn: 92225
2009-12-28 20:45:51 +00:00
42bc7ad2b1
Remove dead store.
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llvm-svn: 92190
2009-12-28 01:51:30 +00:00
a864a67185
Use more sensible type for flags in asms. PR 5570.
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Patch by Sylve`re Teissier (sorry, ASCII only).
llvm-svn: 91988
2009-12-23 07:32:51 +00:00
6453a4e2ab
Fix this to properly clear the FastISel debug location. Thanks to
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Bill for spotting this!
llvm-svn: 91355
2009-12-14 23:08:09 +00:00
35f5646ef0
Remove old DBG_LABEL code.
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llvm-svn: 90669
2009-12-05 17:56:26 +00:00
6e7073b846
Remove the unused DisableLegalizeTypes option and related code.
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llvm-svn: 90668
2009-12-05 17:51:33 +00:00
c82272a7b6
Don't blindly set the debug location for PHI node copies.
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llvm-svn: 90637
2009-12-05 01:29:04 +00:00
18f94469dc
Make TargetSelectInstruction protected and called from FastISel.cpp
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instead of SelectionDAGISel.cpp.
llvm-svn: 90636
2009-12-05 01:27:58 +00:00
02578a3805
The debug information for an LLVM Instruction applies to that Instruction
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and that Instruction only. Implement this by setting the "current debug position"
back to Unknown after processing each instruction.
llvm-svn: 90632
2009-12-05 00:27:08 +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
9d72cbf2d5
Move CopyCatchInfo into FunctionLoweringInfo.cpp too, for consistency.
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llvm-svn: 89683
2009-11-23 18:12:11 +00:00
1a6c47f1cb
Rename SelectionDAGLowering to SelectionDAGBuilder, and rename
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SelectionDAGBuild.cpp to SelectionDAGBuilder.cpp.
llvm-svn: 89681
2009-11-23 18:04:58 +00:00
a3624b6099
Move the FunctionLoweringInfo class and some related utility functions out
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of SelectionDAGBuild.h/cpp into its own files, to help separate
general lowering logic from SelectionDAG-specific lowering logic.
llvm-svn: 89667
2009-11-23 17:16:22 +00:00
20c8ab655e
Fix fast-isel to avoid selecting the return instruction if a
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tail call has been encountered.
llvm-svn: 89444
2009-11-20 02:51:26 +00:00
f6eeaebd76
Implement support to debug inlined functions.
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llvm-svn: 86748
2009-11-10 23:06:00 +00:00
ad7c6124e7
Hide a couple of options.
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llvm-svn: 86522
2009-11-09 06:49:37 +00:00
554a75a973
Move some code from being emitted as boilerplate duplicated in every
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*ISelDAGToDAG.cpp to being regular code in SelectionDAGISel.cpp.
llvm-svn: 85530
2009-10-29 22:30:23 +00:00
453d64c9f5
Rename usesCustomDAGSchedInserter to usesCustomInserter, and update a
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bunch of associated comments, because it doesn't have anything to do
with DAGs or scheduling. This is another step in decoupling MachineInstr
emitting from scheduling.
llvm-svn: 85517
2009-10-29 18:10:34 +00:00
0997991252
pseudosourcevalue is also still using getGlobalContext(), so it isn't
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thread safe either.
llvm-svn: 85253
2009-10-27 17:02:08 +00:00
47062ce503
Indent code.
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llvm-svn: 84247
2009-10-16 05:42:28 +00:00
0af2a420cd
Set default location for a function if it is not set.
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llvm-svn: 83921
2009-10-12 23:10:55 +00:00
bb802206d2
Set default location for the function if it is not already set.
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This code is not yet enabled.
llvm-svn: 83349
2009-10-06 00:09:08 +00:00
5d58383ea9
Remove unnecessary cast.
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llvm-svn: 83100
2009-09-29 19:56:13 +00:00
2d85eef974
s/class Metadata/class MetadataContext/g
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llvm-svn: 83019
2009-09-28 21:41:20 +00:00
b1a4477f1f
Do not use global typedef for MDKindID.
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llvm-svn: 83016
2009-09-28 21:14:55 +00:00
7d6781b0fe
Tabs -> spaces, and remove trailing whitespace.
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llvm-svn: 82355
2009-09-20 02:20:51 +00:00
9827ad39a7
Fix PR4926. When target hook EmitInstrWithCustomInserter() insert new basic blocks and update CFG, it should also inform sdisel of the changes so the phi source operands will come from the right basic blocks.
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llvm-svn: 82311
2009-09-19 09:51:03 +00:00
270d0f986f
Enhance EmitInstrWithCustomInserter() so target can specify CFG changes that sdisel will use to properly complete phi nodes.
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Not functionality change yet.
llvm-svn: 82273
2009-09-18 21:02:19 +00:00
f4db6396e0
Revert r82214. It broke 403.gcc on x86_64 / Darwin.
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llvm-svn: 82215
2009-09-18 08:26:06 +00:00
6ba1931d60
Fix a bug in sdisel switch lowering code. When it updates the phi nodes in switch successor blocks, it can introduce multiple phi operands of the same value from different blocks (and may not be on the predecessor list).
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This can be seen on CodeGen/Generic/2006-09-06-SwitchLowering.ll. But it's not known to cause any real regression (but I have added an assertion for it now).
llvm-svn: 82214
2009-09-18 08:16:04 +00:00
44b3a87f78
Fix typo.
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llvm-svn: 82080
2009-09-16 21:09:07 +00:00
852c9b6627
At iSel time, update DebugLoc based on debug info attached with an instruction.
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llvm-svn: 82077
2009-09-16 20:39:11 +00:00
317dbbcfb1
eliminate uses of cerr()
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llvm-svn: 79834
2009-08-23 07:05:07 +00:00
4dc3edde9f
remove a few DOUTs here and there.
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llvm-svn: 79832
2009-08-23 06:35:02 +00:00
55f1c09e31
Push LLVMContexts through the IntegerType APIs.
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llvm-svn: 78948
2009-08-13 21:58:54 +00:00
9f94459d24
Split EVT into MVT and EVT, the former representing _just_ a primitive type, while
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the latter is capable of representing either a primitive or an extended type.
llvm-svn: 78713
2009-08-11 20:47:22 +00:00
David Greene