ba8735d25a
When discarding SrcValue information, discard all of it so that code
...
that uses this information knows to behave conservatively.
llvm-svn: 85654
2009-10-31 14:14:04 +00:00
a0ca9e944f
Fix warning with gcc-4.0 and signed/unsigned.
...
llvm-svn: 85648
2009-10-31 09:24:35 +00:00
d814e32e57
Don't mark registers dead here when processing nodes with MVT::Flag
...
results. This works around a problem affecting targets which rely on
MVT::Flag to handle physical register defs.
llvm-svn: 85638
2009-10-30 23:57:47 +00:00
6c9388011b
Initial target-independent CodeGen support for BlockAddresses.
...
llvm-svn: 85556
2009-10-30 01:27:03 +00:00
05efd893db
Remove some unnecessary spaces in debug output.
...
llvm-svn: 85536
2009-10-29 23:30:06 +00:00
554a75a973
Move some code from being emitted as boilerplate duplicated in every
...
*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
...
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
1fd4c577d2
Make sure we return the right sized type here.
...
llvm-svn: 85436
2009-10-28 21:32:16 +00:00
14ca753e28
Don't call SDNode::isPredecessorOf when it isn't necessary. If the load's
...
chains have no users, they can't be predecessors of the condition.
llvm-svn: 85394
2009-10-28 15:28:02 +00:00
cd139c0373
Rewrite SelectionDAG::isPredecessorOf to be iterative instead of
...
recursive to avoid consuming extraordinary amounts of stack space
when processing tall graphs.
llvm-svn: 85369
2009-10-28 03:44:30 +00:00
83896a59e1
Add a second ValueType argument to isFPImmLegal.
...
llvm-svn: 85361
2009-10-28 01:43:28 +00:00
4b46cbfc23
Mark dead physregdefs dead immediately. This helps MachineSink and
...
MachineLICM and other things which run before LiveVariables is run.
llvm-svn: 85360
2009-10-28 01:13:53 +00:00
d04cb6d0fa
rename indbr -> indirectbr to appease the residents of #llvm.
...
llvm-svn: 85351
2009-10-28 00:19:10 +00:00
a5e078b677
Update the MachineBasicBlock CFG for an indirect branch.
...
llvm-svn: 85325
2009-10-27 22:10:34 +00:00
a4374e66f0
Add CodeGen support for indirect branches.
...
llvm-svn: 85323
2009-10-27 21:56:26 +00:00
26076a8f10
don't use stdio
...
llvm-svn: 85296
2009-10-27 20:42:54 +00:00
16993aa30b
Do away with addLegalFPImmediate. Add a target hook isFPImmLegal which returns true if the fp immediate can be natively codegened by target.
...
llvm-svn: 85281
2009-10-27 19:56:55 +00:00
3ed871fe62
add enough support for indirect branch for the feature test to pass
...
(assembler,asmprinter, bc reader+writer) and document it. Codegen
currently aborts on it.
llvm-svn: 85274
2009-10-27 19:13:16 +00:00
0997991252
pseudosourcevalue is also still using getGlobalContext(), so it isn't
...
thread safe either.
llvm-svn: 85253
2009-10-27 17:02:08 +00:00
7a50b280c1
Add objectsize intrinsic and hook it up through codegen. Doesn't
...
do anything than return "I don't know" at the moment.
llvm-svn: 85189
2009-10-27 00:52:25 +00:00
de5ad42aa1
Remove FreeInst.
...
Remove LowerAllocations pass.
Update some more passes to treate free calls just like they were treating FreeInst.
llvm-svn: 85176
2009-10-26 23:43:48 +00:00
974e12b2d3
Remove includes of Support/Compiler.h that are no longer needed after the
...
VISIBILITY_HIDDEN removal.
llvm-svn: 85043
2009-10-25 06:57:41 +00:00
02d5f77d26
Remove VISIBILITY_HIDDEN from class/struct found inside anonymous namespaces.
...
Chris claims we should never have visibility_hidden inside any .cpp file but
that's still not true even after this commit.
llvm-svn: 85042
2009-10-25 06:33:48 +00:00
4ef112be62
APInt-ify the gep scaling code, so that it correctly handles the case where
...
the scale overflows pointer-sized arithmetic. This fixes PR5281.
llvm-svn: 84954
2009-10-23 17:57:43 +00:00
8626367e38
Fix null pointer dereference.
...
llvm-svn: 84806
2009-10-22 00:15:17 +00:00
a6faf60831
Fix invalid for vector types fneg(bitconvert(x)) => bitconvert(x ^ sign)
...
transform.
llvm-svn: 84683
2009-10-20 21:37:45 +00:00
0e9d9ca855
-Revert parts of 84326 and 84411. Distinquishing between fixed and non-fixed
...
stack slots and giving them different PseudoSourceValue's did not fix the
problem of post-alloc scheduling miscompiling llvm itself.
- Apply Dan's conservative workaround by assuming any non fixed stack slots can
alias other memory locations. This means a load from spill slot #1 cannot
move above a store of spill slot #2 .
- Enable post-alloc scheduling for x86 at optimization leverl Default and above.
llvm-svn: 84424
2009-10-18 18:16:27 +00:00
0b8db2dab7
Only fixed stack objects and spill slots should be get FixedStack PseudoSourceValue.
...
llvm-svn: 84411
2009-10-18 06:27:36 +00:00
8759585aba
Revert 84315 for now. Re-thinking the patch.
...
llvm-svn: 84321
2009-10-17 07:53:04 +00:00
0818d87ed1
Rename getFixedStack to getStackObject. The stack objects represented are not
...
necessarily fixed. Only those will negative frame indices are "fixed."
llvm-svn: 84315
2009-10-17 06:22:26 +00:00
a6e4db8ff7
80 col violation.
...
llvm-svn: 84311
2009-10-17 06:05:11 +00:00
650997fb0b
Delete an obsolete comment.
...
llvm-svn: 84300
2009-10-17 01:37:38 +00:00
a3aaf85e23
Remove MallocInst from LLVM Instructions.
...
llvm-svn: 84299
2009-10-17 01:18:07 +00:00
b1baaf5ab9
Allow widening of extract subvector
...
llvm-svn: 84279
2009-10-16 22:05:48 +00:00
47062ce503
Indent code.
...
llvm-svn: 84247
2009-10-16 05:42:28 +00:00
e4197250cc
Report errors correctly for unselected target intrinsics.
...
llvm-svn: 84193
2009-10-15 18:50:03 +00:00
8e6ccb65df
I don't see any point in having both eh.selector.i32 and eh.selector.i64,
...
so get rid of eh.selector.i64 and rename eh.selector.i32 to eh.selector.
Likewise for eh.typeid.for. This aligns us with gcc, which always uses a
32 bit value for the selector on all platforms. My understanding is that
the register allocator used to assert if the selector intrinsic size didn't
match the pointer size, and this was the reason for introducing the two
variants. However my testing shows that this is no longer the case (I
fixed some bugs in selector lowering yesterday, and some more today in the
fastisel path; these might have caused the original problems).
llvm-svn: 84106
2009-10-14 16:11:37 +00:00
d7ebfe3963
s/DebugLoc.CompileUnit/DebugLoc.Scope/g
...
s/DebugLoc.InlinedLoc/DebugLoc.InlinedAtLoc/g
llvm-svn: 84054
2009-10-13 23:28:53 +00:00
18a956cb4a
Introduce new convenience methods for sign extending or
...
truncating an SDValue (depending on whether the target
type is bigger or smaller than the value's type); or zero
extending or truncating it. Use it in a few places (this
seems to be a popular operation, but I only modified cases
of it in SelectionDAGBuild). In particular, the eh_selector
lowering was doing this wrong due to a repeated rather than
inverted test, fixed with this change.
llvm-svn: 84027
2009-10-13 21:04:12 +00:00
0af2a420cd
Set default location for a function if it is not set.
...
llvm-svn: 83921
2009-10-12 23:10:55 +00:00
a3ed9edd40
More heuristics for Combiner-AA. Still catches all important cases, but
...
compile time penalty on gnugo, the worst case in MultiSource, is down to
about 2.5% from 30%
llvm-svn: 83824
2009-10-12 05:53:58 +00:00
b8120770b4
Create a new InstrEmitter class for translating SelectionDAG nodes
...
into MachineInstrs. This is mostly just moving the code from
ScheduleDAGSDNodesEmit.cpp into a new class. This decouples MachineInstr
emitting from scheduling.
llvm-svn: 83699
2009-10-10 01:32:21 +00:00
a22f2d8614
Make getMachineNode return a MachineSDNode* instead of a generic SDNode*
...
since it won't do any folding. This will help avoid some inconvenient
casting.
llvm-svn: 83698
2009-10-10 01:29:16 +00:00
918ec53c64
The ScheduleDAG framework now requires an AliasAnalysis argument, though
...
it isn't needed in the ScheduleDAGSDNodes schedulers.
llvm-svn: 83691
2009-10-09 23:33:48 +00:00
df45c7f642
Extract scope information from the variable itself, instead of relying on alloca or llvm.dbg.declare location.
...
While recording beginning of a function, use scope info from the first location entry instead of just relying on first location entry itself.
llvm-svn: 83684
2009-10-09 22:42:28 +00:00
2a45a65511
Add a SelectionDAG getTargetInsertSubreg convenience function,
...
similar to getTargetExtractSubreg.
llvm-svn: 83564
2009-10-08 18:49:46 +00:00
4598eb6214
Add support to handle debug info attached to an instruction.
...
This is not yet enabled.
llvm-svn: 83400
2009-10-06 18:37:31 +00:00
bb802206d2
Set default location for the function if it is not already set.
...
This code is not yet enabled.
llvm-svn: 83349
2009-10-06 00:09:08 +00:00
4dbca6dfd4
If location info is attached with an instruction then keep track of alloca slots used by a variable. This info will be used by AsmPrinter to emit debug info for variables.
...
llvm-svn: 83189
2009-10-01 01:03:26 +00:00
3256c751f5
Use MDNode * directly as an RecordSourceLine() argument.
...
llvm-svn: 83182
2009-09-30 22:51:28 +00:00
cea8dab1d1
Silence comparison always false warning in -Asserts mode.
...
llvm-svn: 83164
2009-09-30 20:43:07 +00:00
8ff5c19ebd
Fix integer overflow in instruction scheduling. This can happen if we have
...
basic blocks that are so long that their size overflows a short.
Also assert that overflow does not happen in the future, as requested by Evan.
This fixes PR4401.
llvm-svn: 83159
2009-09-30 20:15:38 +00:00
5d58383ea9
Remove unnecessary cast.
...
llvm-svn: 83100
2009-09-29 19:56:13 +00:00
2d85eef974
s/class Metadata/class MetadataContext/g
...
llvm-svn: 83019
2009-09-28 21:41:20 +00:00
b1a4477f1f
Do not use global typedef for MDKindID.
...
llvm-svn: 83016
2009-09-28 21:14:55 +00:00
6905f15256
Use VerifySchedule instead of doing the work manually.
...
llvm-svn: 82995
2009-09-28 16:09:41 +00:00
832800aa6f
Convert comparisons like (x == infinity) to (x >= infinity) on targets
...
where FCMP_OEQ is not legal and FCMP_OGE is, such as x86.
llvm-svn: 82861
2009-09-26 15:24:17 +00:00
48b185d6f7
Improve MachineMemOperand handling.
...
- Allocate MachineMemOperands and MachineMemOperand lists in MachineFunctions.
This eliminates MachineInstr's std::list member and allows the data to be
created by isel and live for the remainder of codegen, avoiding a lot of
copying and unnecessary translation. This also shrinks MemSDNode.
- Delete MemOperandSDNode. Introduce MachineSDNode which has dedicated
fields for MachineMemOperands.
- Change MemSDNode to have a MachineMemOperand member instead of its own
fields with the same information. This introduces some redundancy, but
it's more consistent with what MachineInstr will eventually want.
- Ignore alignment when searching for redundant loads for CSE, but remember
the greatest alignment.
Target-specific code which previously used MemOperandSDNodes with generic
SDNodes now use MemIntrinsicSDNodes, with opcodes in a designated range
so that the SelectionDAG framework knows that MachineMemOperand information
is available.
llvm-svn: 82794
2009-09-25 20:36:54 +00:00
32f71d714b
Rename getTargetNode to getMachineNode, for consistency with the
...
naming scheme used in SelectionDAG, where there are multiple kinds
of "target" nodes, but "machine" nodes are nodes which represent
a MachineInstr.
llvm-svn: 82790
2009-09-25 18:54:59 +00:00
a318d91a1e
Make sure sin, cos, sqrt calls are marked readonly
...
before producing FSIN, FCOS, FSQRT. If they aren't
so marked we have to assume they might set errno.
llvm-svn: 82781
2009-09-25 18:00:35 +00:00
c72134269f
Generate FSQRT from calls to the sqrt function, which
...
allows appropriate backends to generate a sqrt instruction.
On x86, this isn't done at -O0 because we go through
FastISel instead. This is a behavior change from before
this series of sqrt patches started. I think this is OK
considering that compile speed is most important at -O0, but
could be convinced otherwise.
llvm-svn: 82778
2009-09-25 17:23:22 +00:00
18150d5abc
Fix combiner-aa issue with bases which are different, but can alias.
...
Previously, it treated GV+28 GV+0 as different bases, and assumed they could
not alias.
llvm-svn: 82753
2009-09-25 06:05:26 +00:00
ebdfe4af62
Add a version of dumpr() that has a SelectionDAG* argument.
...
llvm-svn: 82742
2009-09-25 00:34:34 +00:00
203d53ed79
Use getStoreSize() instead of getStoreSizeInBits()/8.
...
llvm-svn: 82656
2009-09-23 21:07:02 +00:00
08c0a95ac6
Rename several variables from EVT to more descriptive names, now that EVT
...
is also the name of their type, as declarations like "EVT EVT" look
really odd.
llvm-svn: 82654
2009-09-23 21:02:20 +00:00
c0353bfff5
Give MachineMemOperand an operator<<, factoring out code from
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two different places for printing MachineMemOperands.
Drop the virtual from Value::dump and instead give Value a
protected virtual hook that can be overridden by subclasses
to implement custom printing. This lets printing be more
consistent, and simplifies printing of PseudoSourceValue
values.
llvm-svn: 82599
2009-09-23 01:33:16 +00:00
e7c8242baa
Change MachineMemOperand's alignment value to be the alignment of
...
the base pointer, without the offset. This matches MemSDNode's
new alignment behavior, and holds more interesting information.
llvm-svn: 82473
2009-09-21 19:47:04 +00:00
bb1a1bd2bd
tidy up
...
llvm-svn: 82397
2009-09-20 17:32:21 +00:00
7d6781b0fe
Tabs -> spaces, and remove trailing whitespace.
...
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.
...
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.
...
Not functionality change yet.
llvm-svn: 82273
2009-09-18 21:02:19 +00:00
e133923abe
duncan points out the EH selector values are signed.
...
llvm-svn: 82245
2009-09-18 18:34:29 +00:00
f4db6396e0
Revert r82214. It broke 403.gcc on x86_64 / Darwin.
...
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).
...
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
1bd81314e7
tolerate llvm.eh.selector.i64 on 32-bit systems and llvm.eh.selector.i32 on
...
64-bit systems.
llvm-svn: 82180
2009-09-17 23:54:54 +00:00
44b3a87f78
Fix typo.
...
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.
...
llvm-svn: 82077
2009-09-16 20:39:11 +00:00
fbb88b180c
Do not add the SVOffset to the Node CSE ID. The same pointer argument cannot have different
...
SVOffsets.
llvm-svn: 81937
2009-09-15 22:30:11 +00:00
178135c88b
Better solution for tracking both the original alignment of the access, and the current alignment based
...
on the source value offset. This avoids increasing the size of mem nodes.
llvm-svn: 81897
2009-09-15 19:05:41 +00:00
d41f8fd2b3
Remove incorrect CSE code from r81813.
...
llvm-svn: 81819
2009-09-15 00:38:09 +00:00
879d8f1c3e
Substantially speed up combiner-aa in the following ways:
...
1. Switch from an std::set to a SmallPtrSet for visited chain nodes.
2. Do not force the recursive flattening of token factor nodes, regardless of
use count.
3. Immediately process newly created TokenFactor nodes.
Also, improve combiner-aa by teaching it that loads to non-overlapping offsets
of relatively aligned objects cannot alias.
These changes result in a >5x speedup for combiner-aa on most testcases.
llvm-svn: 81816
2009-09-15 00:18:30 +00:00
01c1e1152d
Teach the legalizer to propagate the original alignment of loads and store when
...
it splits them.
llvm-svn: 81815
2009-09-15 00:14:28 +00:00
02a685a914
Add an "original alignment" field to load and store nodes. This enables the
...
DAG Combiner to disambiguate chains for loads and stores of types which are
broken up by the Legalizer into smaller pieces.
llvm-svn: 81813
2009-09-15 00:13:12 +00:00
0bad631cde
kill off the last use of TRI::AsmName.
...
llvm-svn: 81727
2009-09-13 22:42:03 +00:00
9cbef32726
Make fast-isel try ISD::FNEG before resorting to bitcasts and xors.
...
llvm-svn: 81493
2009-09-11 00:36:43 +00:00
89b090e51e
Reapply r81171 with a fix: don't try to use i64 when it
...
isn't legal.
llvm-svn: 81492
2009-09-11 00:34:46 +00:00
39f51320ca
Don't swap the operands of a subtraction when trying to create a
...
post-decrement load/store.
llvm-svn: 81464
2009-09-10 22:09:31 +00:00
59e4c84c6f
Revert r81171 which was causing pr4927.
...
llvm-svn: 81415
2009-09-10 00:49:22 +00:00
16ad903fcf
When widening a vector load, use the correct chain. This fixes PR4891.
...
llvm-svn: 81343
2009-09-09 14:22:57 +00:00
e819cfbc71
change selectiondag to add the sign extended versions of immediate operands
...
to instructions instead of zero extended ones. This makes the asmprinter
print signed values more consistently. This apparently only really affects
the X86 backend.
llvm-svn: 81265
2009-09-08 23:05:44 +00:00
f4a0f0f033
Fix an abort on a store of an empty struct member. getValue returns
...
null in the case of an empty struct, so don't try to call getNumValues
on it.
llvm-svn: 81180
2009-09-08 01:44:02 +00:00
2512a42548
Fix a thinko: When lowering fneg with xor, bitcast the operands
...
from floating-point to integer first, and bitcast the result
back to floating-point. Previously, this test was passing by
falling back to SelectionDAG lowering. The resulting code isn't
as nice, but it's correct and CodeGen now stays on the fast path.
llvm-svn: 81171
2009-09-07 23:47:14 +00:00
3ee3c174b1
Simplify. Testing shows that this is not equivalent to BBI = CR.CaseBB + 1.
...
llvm-svn: 81124
2009-09-06 18:03:32 +00:00
89720bbd11
Remove some not-really-used variables, as warned
...
about by icc (#593 , partial). Patch by Erick Tryzelaar.
llvm-svn: 81115
2009-09-06 12:41:19 +00:00
2fbeaf084f
Remove some unused variables and methods warned about by
...
icc (#177 , partial). Patch by Erick Tryzelaar.
llvm-svn: 81106
2009-09-06 08:33:48 +00:00
f03667e20e
Detect VLAs.
...
Do not use DenseMap operator[] because it inserts new entry if lookup fails. Use find() to check an entry in a DenseMap first.
llvm-svn: 81058
2009-09-05 00:34:14 +00:00
aa92dc1e61
LLVM currently represents floating-point negation as -0.0 - x. Fix
...
FastISel to recognize this pattern and emit a floating-point
negation using xor.
llvm-svn: 80963
2009-09-03 22:53:57 +00:00
d0d5e685da
Recognize more opportunities to use SSE min and max instructions,
...
swapping the operands if necessary.
llvm-svn: 80940
2009-09-03 20:34:31 +00:00
68c5f477fa
Retype from unsigned to CallingConv::ID accordingly. Approved by Bob Wilson.
...
llvm-svn: 80773
2009-09-02 08:44:58 +00:00
f7a14aa43d
Remove Offset from ExternalSybmol MachineOperands, this is unused (and at least partly unsupported, in X86 encoding at least).
...
llvm-svn: 80726
2009-09-01 22:06:46 +00:00
80ae34974b
Reapply 79977.
...
Use MDNodes to encode debug info in llvm IR.
llvm-svn: 80406
2009-08-28 23:24:31 +00:00
50509fc2cb
Add extload expansion for f128
...
llvm-svn: 80116
2009-08-26 17:39:40 +00:00
f08e35d9dc
Revert 79977. It causes llvm-gcc bootstrap failures on some platforms.
...
llvm-svn: 80073
2009-08-26 05:01:18 +00:00
3b1665eca5
Get rid of this horrible "benign race" by exploiting ManagedStatic to initialize
...
the array on its first access.
llvm-svn: 80040
2009-08-25 22:27:22 +00:00
02aac922b4
Update DebugInfo interface to use metadata, instead of special named llvm.dbg.... global variables, to encode debugging information in llvm IR. This is mostly a mechanical change that tests metadata support very well.
...
This change speeds up llvm-gcc by more then 6% at "-O0 -g" (measured by compiling InstructionCombining.cpp!)
llvm-svn: 79977
2009-08-25 05:24:07 +00:00
34ee203337
Fix some refactos for iostream changes (in -Asserts mode).
...
- The world needs better C++ refactoring tools, can I get an Amen!?
llvm-svn: 79843
2009-08-23 08:50:52 +00:00
317dbbcfb1
eliminate uses of cerr()
...
llvm-svn: 79834
2009-08-23 07:05:07 +00:00
4dc3edde9f
remove a few DOUTs here and there.
...
llvm-svn: 79832
2009-08-23 06:35:02 +00:00
1362602eb2
Change Pass::print to take a raw ostream instead of std::ostream,
...
update all code that this affects.
llvm-svn: 79830
2009-08-23 06:03:38 +00:00
79ba8f2edc
Add check for completeness. Note that this doesn't actually have any
...
effect with the way the current code is structured.
llvm-svn: 79792
2009-08-23 00:14:19 +00:00
7b26fce23e
Rename TargetAsmInfo (and its subclasses) to MCAsmInfo.
...
llvm-svn: 79763
2009-08-22 20:48:53 +00:00
0939595711
Record variable debug info at ISel time directly.
...
llvm-svn: 79742
2009-08-22 17:12:53 +00:00
63010bb65a
Reapply r79708 with the appropriate fix for the case that still requires locking.
...
llvm-svn: 79731
2009-08-22 06:32:36 +00:00
56d60eaa61
revert r79708 + r79711
...
llvm-svn: 79720
2009-08-22 04:07:34 +00:00
677c2287da
Actually remove unused static. Previous commit removed trailing
...
whitespace.
llvm-svn: 79711
2009-08-22 00:41:47 +00:00
dfda92b76e
Remove unused static.
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llvm-svn: 79710
2009-08-22 00:40:45 +00:00
8e2456c254
Ease contention on this lock by noticing that all writes to the VTs array will
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be of (dynamically) constant values, so races on it are immaterial. We just need
to ensure that at least one write has completed before return the pointer into it.
With this change, parllc exhibits essentially no overhead on 403.gcc.
llvm-svn: 79708
2009-08-22 00:29:12 +00:00
dff54eff8e
Fix typo. Should check both values of RangeUse for 0. Patch by Marius Wachtler.
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llvm-svn: 79649
2009-08-21 18:16:06 +00:00
ac33a9061d
Add an x86 peep that narrows TEST instructions to forms that use
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a smaller encoding. These kinds of patterns are very frequent in
sqlite3, for example.
llvm-svn: 79439
2009-08-19 18:16:17 +00:00
9b48cd4899
Use the schedule itinerary operand use/def cycle information to adjust dependence edge latency for post-RA scheduling.
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llvm-svn: 79425
2009-08-19 16:08:58 +00:00
1e008c173a
PR4737: Fix a nasty bug in load narrowing with non-power-of-two types.
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llvm-svn: 79415
2009-08-19 08:46:10 +00:00
2fa67c9f70
Be tidy and use a break to exit from a switch block rather than
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just falling through the end.
llvm-svn: 79383
2009-08-18 23:52:48 +00:00
4906f73a9f
Legalize the shift amount operand of SRL_PARTS, SHL_PARTS, and
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SRA_PARTS, as is done for SRL, SHL, and SRA.
llvm-svn: 79380
2009-08-18 23:36:17 +00:00
43bbb9de66
Remove a bit more cruft from the sjlj moving to a backend pass.
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llvm-svn: 79272
2009-08-17 20:25:04 +00:00
7f91fee62b
Be more clever about regclasses in ScheduleDAGSDNodes::EmitCopyFromReg.
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If two uses of a CopyFromReg want different regclasses, first try a common
sub-class, then fall back on the copy emitted in AddRegisterOperand. There is
no need for an assert here. The cross-class joiner usually cleans up nicely.
llvm-svn: 79193
2009-08-16 17:40:59 +00:00
badf17cdc7
Needs to check whether unaligned load / store of i64 is legal here.
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llvm-svn: 79150
2009-08-15 23:41:42 +00:00
d2d5e716bd
Unbreak build. Evan, please make sure my changes are correct.
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llvm-svn: 79133
2009-08-15 20:46:16 +00:00
567f124305
80 col violations.
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llvm-svn: 79087
2009-08-15 08:38:52 +00:00
e8c913e657
Simplify this code to not depend as much on CurMBB.
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llvm-svn: 79068
2009-08-15 02:06:22 +00:00
a6b3ce203a
Allow targets to specify their choice of calling conventions per
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libcall. Take advantage of this in the ARM backend to rectify broken
choice of CC when hard float is in effect. PIC16 may want to see if
it could be of use in MakePIC16Libcall, which works unchanged.
Patch by Sandeep!
llvm-svn: 79033
2009-08-14 20:10:52 +00:00
dc1869661b
Indentation change.
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llvm-svn: 78978
2009-08-14 01:56:37 +00:00
55f1c09e31
Push LLVMContexts through the IntegerType APIs.
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llvm-svn: 78948
2009-08-13 21:58:54 +00:00
90e6b8b708
Add callback to allow target to adjust latency of schedule dependency edge.
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llvm-svn: 78910
2009-08-13 16:05:04 +00:00
117c9e8497
Add contexts to some of the MVT APIs. No functionality change yet, just the infrastructure work needed to get the contexts to where they need to be first.
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llvm-svn: 78759
2009-08-12 00:36:31 +00:00
c6daf8f17c
Fix warnings.
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llvm-svn: 78725
2009-08-11 21:59:30 +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
7c50c9bd63
Tidy #includes.
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llvm-svn: 78677
2009-08-11 16:02:12 +00:00
693e36a3e8
SjLj based exception handling unwinding support. This patch is nasty, brutish
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and short. Well, it's kinda short. Definitely nasty and brutish.
The front-end generates the register/unregister calls into the SjLj runtime,
call-site indices and landing pad dispatch. The back end fills in the LSDA
with the call-site information provided by the front end. Catch blocks are
not yet implemented.
Built on Darwin and verified no llvm-core "make check" regressions.
llvm-svn: 78625
2009-08-11 00:09:57 +00:00
9d26c85bdc
Fix a bug in the DAGCombiner's handling of multiple linked
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MERGE_VALUES nodes. Replacing the result values with the
operands in one MERGE_VALUES node may cause another
MERGE_VALUES node be CSE'd with the first one, and bring
its uses along, so that the first one isn't dead, as this
code expects. Fix this by iterating until the node is
really dead. This fixes PR4699.
llvm-svn: 78619
2009-08-10 23:43:19 +00:00
733a64db57
Fix a bug where DAGCombine was producing an illegal ConstantFP
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node after legalize, and remove the workaround code from the
ARM backend.
llvm-svn: 78615
2009-08-10 23:15:10 +00:00
53aa7a960c
Rename MVT to EVT, in preparation for splitting SimpleValueType out into its own struct type.
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llvm-svn: 78610
2009-08-10 22:56:29 +00:00
c30530d105
Start moving TargetLowering away from using full MVTs and towards SimpleValueType, which will simplify the privatization of IntegerType in the future.
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llvm-svn: 78584
2009-08-10 18:56:59 +00:00
b717091e69
Make this comment more closely reflect the code.
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llvm-svn: 78569
2009-08-10 16:50:32 +00:00
dc6bccbaa6
Don't build illegal ops in DAGCombiner::SimplifyBinOpWithSameOpcodeHands().
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Blackfin supports and/or/xor on i32 but not on i16. Teach
DAGCombiner::SimplifyBinOpWithSameOpcodeHands to not produce illegal nodes
after legalize ops.
llvm-svn: 78497
2009-08-08 20:42:17 +00:00
352fa92995
Use stripPointerCasts instead of partially rewriting it.
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llvm-svn: 78350
2009-08-06 22:45:51 +00:00
695d811ad5
Add assertion checks after the calls to LowerFormalArguments, LowerCall,
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and LowerReturn, to verify that the targets' hooks have respected some
of their postconditions.
llvm-svn: 78312
2009-08-06 15:37:27 +00:00
ee902509a8
Remove an over-aggressive assert. Functions with empty struct return
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types don't have any return values, from CodeGen's perspective.
This fixes PR4688.
llvm-svn: 78311
2009-08-06 15:07:58 +00:00
5758e1e92a
Fix a few places in DAGCombiner that were creating all-ones-bits
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and high-bits values in ways that weren't correct for integer
types wider than 64 bits. This fixes a miscompile in
PPMacroExpansion.cpp in clang on x86-64.
llvm-svn: 78295
2009-08-06 09:18:59 +00:00
f9bbcd1afd
Major calling convention code refactoring.
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Instead of awkwardly encoding calling-convention information with ISD::CALL,
ISD::FORMAL_ARGUMENTS, ISD::RET, and ISD::ARG_FLAGS nodes, TargetLowering
provides three virtual functions for targets to override:
LowerFormalArguments, LowerCall, and LowerRet, which replace the custom
lowering done on the special nodes. They provide the same information, but
in a more immediately usable format.
This also reworks much of the target-independent tail call logic. The
decision of whether or not to perform a tail call is now cleanly split
between target-independent portions, and the target dependent portion
in IsEligibleForTailCallOptimization.
This also synchronizes all in-tree targets, to help enable future
refactoring and feature work.
llvm-svn: 78142
2009-08-05 01:29:28 +00:00
15873a8ff7
Propogate the Depth argument when calling
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TLI.computeMaskedBitsForTargetNode from ComputeMaskedBits, since
the former may call back into the latter. This fixes a major
compile time problem on a testcase that happnened to hit this
in a particularly bad way, PR4643.
llvm-svn: 78023
2009-08-04 00:24:42 +00:00
Dan Gohman