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11834 Commits

Author SHA1 Message Date
Chris Lattner
6adbb41d8c fix file header. 
llvm-svn: 102049
 2010-04-22 05:33:15 +00:00
Jakob Stoklund Olesen
8cf10fe9e4 Add fast register allocator, enabled with -regalloc=fast. 
So far this is just a clone of -regalloc=local that has been lobotomized to run
25% faster. It drops the least-recently-used calculations, and is just plain
stupid when it runs out of registers.

The plan is to make this go even faster for -O0 by taking advantage of the short
live intervals in unoptimized code. It should not be necessary to calculate
liveness when most virtual registers are killed 2-3 instructions after they are
born.

llvm-svn: 102006
 2010-04-21 18:02:42 +00:00
Evan Cheng
dbfb7dc438 Implement -disable-non-leaf-fp-elim which disable frame pointer elimination 
optimization for non-leaf functions. This will be hooked up to gcc's
-momit-leaf-frame-pointer option. rdar://7886181

llvm-svn: 101984
 2010-04-21 03:18:23 +00:00
Dan Gohman
4ff2d817a3 Add more const qualifiers on TargetMachine and friends. 
llvm-svn: 101977
 2010-04-21 01:34:56 +00:00
Dan Gohman
1d3532d925 Move several SelectionDAG-independent utility functions out of the 
SelectionDAG directory and into a new Analysis.cpp file.

llvm-svn: 101975
 2010-04-21 01:22:34 +00:00
Evan Cheng
a0c4b2952f - Clean up some crappy code which deals with coalescing of copies which look at 
extract_subreg / insert_subreg, etc.
- Add support for more aggressive insert_subreg coalescing.

llvm-svn: 101971
 2010-04-21 00:44:22 +00:00
Dale Johannesen
510282d54b Because of the EMMS problem, right now we have to support 
user-defined operations that use MMX register types, but
the compiler shouldn't generate them on its own.  This adds
a Synthesizable abstraction to represent this, and changes
the vector widening computation so it won't produce MMX types.
(The motivation is to remove noise from the ABI compatibility
part of the gcc test suite, which has some breakage right now.)

llvm-svn: 101951
 2010-04-20 22:34:09 +00:00
Devang Patel
788913a131 There is no need to install ValueMapper.h header. 
llvm-svn: 101949
 2010-04-20 22:18:31 +00:00
Dan Gohman
f0490a0b8e Document that TargetRegisterInfo::contains does not cover virtual registers. 
llvm-svn: 101903
 2010-04-20 14:51:20 +00:00
Chris Lattner
b6b95141ec move some select simplifications out out instcombine into 
inst simplify.  No functionality change.

llvm-svn: 101873
 2010-04-20 05:32:14 +00:00
Eric Christopher
53e7e0fcfb Remove the palignr intrinsics now that we lower them to vector shuffles, 
shifts and null vectors. Autoupgrade these to what we'd lower them to.

Add a testcase to exercise this.

llvm-svn: 101851
 2010-04-20 00:59:54 +00:00
Dan Gohman
e8387b1250 Sink DebugLoc handling out of SelectionDAGISel into FastISel and 
SelectionDAGBuilder, where it doesn't have to be as complicated.

llvm-svn: 101848
 2010-04-20 00:48:35 +00:00
Chris Lattner
2f4001f3a8 make CallGraphNode dtor abort if a node is deleted when there are still 
references to it.

llvm-svn: 101847
 2010-04-20 00:47:34 +00:00
Dan Gohman
c64745ba43 Remove MachineFunction's DefaultDebugLoc member, and make DwarfDebug.cpp 
responsible for figuring out what that's supposed to be on its own.

llvm-svn: 101844
 2010-04-20 00:37:27 +00:00
Dan Gohman
1d05054dc1 Reapply the removal of SelectionDAGISel's BB, with a fix for the case 
where multiple blocks are emitted; functions which do this need to return
the new BB so that their callers can stay current.

llvm-svn: 101843
 2010-04-20 00:29:35 +00:00
Dan Gohman
744e2b34b0 Revert 101825, which is causing trouble. 
llvm-svn: 101832
 2010-04-19 23:34:15 +00:00
Dan Gohman
94383f9d34 Eliminate SelectionDAGISel's "current block" member. Just pass it as 
an argument to things that need it.

llvm-svn: 101825
 2010-04-19 22:51:14 +00:00
Dan Gohman
e52396cb52 Remove the Expr member from IVUsers. Instead of remembering the expression, 
just ask ScalarEvolution for it on demand. This helps IVUsers be more robust
in the case of expressions changing underneath it. This fixes PR6862.

llvm-svn: 101819
 2010-04-19 21:48:58 +00:00
Dan Gohman
6bcd9dabb7 Give SelectionDAG a TargetMachine too, rather than having it 
fetch one from the MachineFunction.

llvm-svn: 101807
 2010-04-19 19:22:07 +00:00
Devang Patel
06123c1012 Add DW_AT_APPLE_omit_frame_ptr to encode -fomit-frame-pointer flag. 
llvm-svn: 101805
 2010-04-19 19:14:02 +00:00
Dan Gohman
f1f21fb3c6 Code that needs a TargetMachine should have access to one directly, rather 
than just getting one through a TargetLowering.

llvm-svn: 101802
 2010-04-19 19:05:59 +00:00
Benjamin Kramer
96b4f6c003 Don't write into MemoryBuffers. 
llvm-svn: 101783
 2010-04-19 16:15:31 +00:00
Dan Gohman
5719bd77e2 Add a few more ELF bits. 
llvm-svn: 101778
 2010-04-19 15:40:15 +00:00
Dan Gohman
26719acdb7 Add a const. 
llvm-svn: 101777
 2010-04-19 15:39:27 +00:00
Dan Gohman
f4e99e3f84 These functions don't need to access this. 
llvm-svn: 101776
 2010-04-19 15:38:38 +00:00
Anton Korobeynikov
e325c693a5 Make processor FUs unique for given itinerary. This extends the limit of 32 
FU per CPU arch to 32 per intinerary allowing precise modelling of quite
complex pipelines in the future.

llvm-svn: 101754
 2010-04-18 20:31:01 +00:00
Bill Wendling
9218175b5f Add a "PadTo" field to the emitULEB128Bytes method. This will pad out to the 
indicated number of bytes.

llvm-svn: 101684
 2010-04-18 00:51:49 +00:00
Dale Johannesen
f044ed7cf9 Add comment (lost when reverting and reapplying 101503). 
llvm-svn: 101664
 2010-04-17 19:56:46 +00:00
Chris Lattner
65d1e40895 teach the x86 asm parser how to handle segment prefixes 
in memory operands.  rdar://7874844

llvm-svn: 101661
 2010-04-17 18:56:34 +00:00
Chris Lattner
a5798151a3 refactor .if handling code a bit. 
llvm-svn: 101659
 2010-04-17 18:14:27 +00:00
Dan Gohman
3dde4fe35f Add const qualifiers to TargetLoweringObjectFile usage. 
llvm-svn: 101640
 2010-04-17 16:44:48 +00:00
Dan Gohman
a0f855157e Use const qualifiers with TargetLowering. This eliminates several 
const_casts, and it reinforces the design of the Target classes being
immutable.

SelectionDAGISel::IsLegalToFold is now a static member function, because
PIC16 uses it in an unconventional way. There is more room for API
cleanup here.

And PIC16's AsmPrinter no longer uses TargetLowering.

llvm-svn: 101635
 2010-04-17 15:26:15 +00:00
Chris Lattner
bef627e798 reenable r101565, removing a problematic assertion. 
CGSCC can delete nodes in regions of the callgraph that
have already been visited.  If new CG nodes are allocated
to the same pointer, we shouldn't abort, just handle it
correctly by assigning a new number.  This should restore
stability by removing invalidated pointers that *will* be
reused from the densemap in the iterator.

llvm-svn: 101628
 2010-04-17 07:17:19 +00:00
Evan Cheng
6442d111dd More work to allow dag combiner to promote 16-bit ops to 32-bit. 
llvm-svn: 101621
 2010-04-17 06:13:15 +00:00
Bob Wilson
ad00f21093 Re-commit my previous SSAUpdater changes. The previous version naively tried 
to determine where to place PHIs by iteratively comparing reaching definitions
at each block.  That was just plain wrong.  This version now computes the
dominator tree within the subset of the CFG where PHIs may need to be placed,
and then places the PHIs in the iterated dominance frontier of each definition.
The rest of the patch is mostly the same, with a few more performance
improvements added in.

llvm-svn: 101612
 2010-04-17 03:08:24 +00:00
Dale Johannesen
9968eef300 Reapply 101503+101520. These are "obviously correct" [Chris] 
and don't cause any problems on Darwin.

llvm-svn: 101584
 2010-04-17 00:08:21 +00:00
Eric Christopher
e78496e5f1 Revert 101465, it broke internal OpenGL testing. 
Probably the best way to know that all getOperand() calls have been handled
is to replace that API instead of updating.

llvm-svn: 101579
 2010-04-16 23:37:20 +00:00
Devang Patel
1929d78e71 Add support to emit dwarf ranges. 
llvm-svn: 101575
 2010-04-16 23:33:45 +00:00
Dan Gohman
b03b56ff82 Add a getSelectionDAGInfo member to TargetMachine. 
llvm-svn: 101567
 2010-04-16 23:09:10 +00:00
Chris Lattner
d28dcb3ffe building on the new CallGraphSCC abstraction, teach CallGraphSCCPassManager 
to keep the node entries in scc_iterator up to date instead of dangling as
the SCC mutates.

This is a really terrible problem which was causing -g to affect codegen 
because it would permute the memory image of the compiler process.

Thanks to Dale for expertly hunting it down.

llvm-svn: 101565
 2010-04-16 23:04:30 +00:00
Chris Lattner
a9a7c28cd2 move ReplaceNode out of line, rename scc_iterator::fini -> isAtEnd(). 
No functionality change.

llvm-svn: 101562
 2010-04-16 22:59:24 +00:00
Chris Lattner
6a038be777 introduce a new CallGraphSCC class, and pass it around 
to CallGraphSCCPass's instead of passing around a
std::vector<CallGraphNode*>.  No functionality change,
but now we have a much tidier interface.

llvm-svn: 101558
 2010-04-16 22:42:17 +00:00
Chris Lattner
7e6e8651b7 tidy up 
llvm-svn: 101548
 2010-04-16 21:57:10 +00:00
Dan Gohman
b3afc2a215 Create a new TargetSelectionDAGInfo class. This will eventually acquire 
SelectionDAG-specific parts of TargetLowering.

llvm-svn: 101537
 2010-04-16 21:12:11 +00:00
Dan Gohman
1119e6060b Eliminate an unnecessary SelectionDAG dependency in getOptimalMemOpType. 
llvm-svn: 101531
 2010-04-16 20:11:05 +00:00
Dan Gohman
56bc819d8e Fix this code to avoid implicit assumptions about the length of the array. 
llvm-svn: 101530
 2010-04-16 20:08:45 +00:00
Dan Gohman
2520b6e199 Revert 101520, which depended on 101503, which was reverted. 
llvm-svn: 101528
 2010-04-16 19:36:41 +00:00
Duncan Sands
7fa5f38be8 Revert commit 101503 (johannes), in the hope of fixing the dragonegg build, 
see http://google1.osuosl.org:8011/builders/dragonegg-x86_64-linux/builds/693
Original commit text:
Use a ValueMap not a std::map for the reason indicated
in the comment.  This was causing nondeterministic changes
in inlining decisions.

llvm-svn: 101525
 2010-04-16 19:28:59 +00:00
Dan Gohman
5d99e7df1c Trim a #include. 
llvm-svn: 101520
 2010-04-16 18:45:11 +00:00
Dale Johannesen
759091323b Use a ValueMap not a std::map for the reason indicated 
in the comment.  This was causing nondeterministic changes
in inlining decisions.

llvm-svn: 101503
 2010-04-16 18:16:08 +00:00
Gabor Greif
e7d6812008 reapply r101434 
with a fix for self-hosting

rotate CallInst operands, i.e. move callee to the back
of the operand array

the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary

llvm-svn: 101465
 2010-04-16 15:33:14 +00:00
Dan Gohman
f754ff8ee9 Make callIsSmall accessible as a utility function. 
llvm-svn: 101463
 2010-04-16 15:14:50 +00:00
Bill Wendling
7ede9396f4 The JIT calls TidyLandingPads to tidy up the landing pads. However, because the 
JIT doesn't use the MC back-end asm printer to emit labels that it uses, the
section for the MCSymbol is never set. And thus the MCSymbol for the EH label
isn't marked as "defined". Because of that, TidyLandingPads removes the needed
landing pads from the JIT output. This breaks EH for every JIT program.

This is a work-around for this limitation. We pass in the label locations
map. If the label has a non-zero value, then it was "emitted" by the JIT and
TidyLandingPads shouldn't remove that label.

A nicer solution would be to mark the MCSymbol as "used" by the JIT and not rely
upon the section being set to determine if it's defined or not.

llvm-svn: 101453
 2010-04-16 08:46:10 +00:00
Evan Cheng
d143bfe0a4 Adding support for dag combiner to promote operations for profit. This requires target specific queries. For example, x86 should promote i16 to i32 when it does not impact load folding. 
x86 support is off by default. It can be enabled with -promote-16bit.

Work in progress.

llvm-svn: 101448
 2010-04-16 06:14:10 +00:00
Eric Christopher
033524af28 Add a check for posix_spawn. 
Regenerate configure and other autoconf files.

llvm-svn: 101444
 2010-04-16 05:14:21 +00:00
Gabor Greif
cd116e8c6a back out r101423 and r101397, they break llvm-gcc self-host on darwin10 
llvm-svn: 101434
 2010-04-16 01:16:20 +00:00
Gabor Greif
2e18d34d80 reapply r101364, which has been backed out in r101368 
with a fix

rotate CallInst operands, i.e. move callee to the back
of the operand array

the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary

llvm-svn: 101397
 2010-04-15 20:51:13 +00:00
Dan Gohman
034c0f7354 Make getPredecessorWithUniqueSuccessorForBB return the unique successor 
in addition to the predecessor.

llvm-svn: 101374
 2010-04-15 16:19:08 +00:00
Gabor Greif
6022150477 back out r101364, as it trips the linux nightlybot on some clang C++ tests 
llvm-svn: 101368
 2010-04-15 12:46:56 +00:00
Gabor Greif
428ca23bbd rotate CallInst operands, i.e. move callee to the back 
of the operand array

the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary

llvm-svn: 101364
 2010-04-15 10:49:53 +00:00
Dan Gohman
64a84ceb3f Add more const qualifiers for LLVM IR pointers in CodeGen. 
llvm-svn: 101342
 2010-04-15 04:33:49 +00:00
Dan Gohman
0e0b8cf9fd Add const qualifiers to CodeGen's use of LLVM IR constructs. 
llvm-svn: 101334
 2010-04-15 01:51:59 +00:00
Dan Gohman
d9d73a414c Fix TrackingVH to handle const Value subclasses. 
llvm-svn: 101300
 2010-04-14 22:24:25 +00:00
Dan Gohman
a5a1f2f8d0 Remove a const here. This makes this function consistent with all the 
other getOperand wrappers, and it makes it easier to use with DebugInfo
code, which isn't currently prepared to see const MDNode *.

llvm-svn: 101299
 2010-04-14 22:23:05 +00:00
Dan Gohman
5c72d507d7 Constify GetConstantStringInfo. 
llvm-svn: 101298
 2010-04-14 22:20:45 +00:00
Dan Gohman
2c2f455dfa Move a bunch of methods from CallSite to CallSiteBase, so that they can 
be used in ImmutableCallSite too.

llvm-svn: 101292
 2010-04-14 21:47:32 +00:00
Dan Gohman
16ea461eb9 Use FunTy instead of hard-coding Function. 
llvm-svn: 101283
 2010-04-14 20:49:44 +00:00
Dan Gohman
94f168ddbe Oops, make these public. 
llvm-svn: 101280
 2010-04-14 20:31:28 +00:00
Dan Gohman
eeaee6bbe3 Move getType() and getCaller() into CallSiteBase so that 
ImmutableCallSite can use them too.

llvm-svn: 101279
 2010-04-14 20:28:44 +00:00
Dan Gohman
1b67547226 Delete unneeeded arguments. 
llvm-svn: 101276
 2010-04-14 20:17:22 +00:00
Dan Gohman
d5d199da5f Delete unused arguments. 
llvm-svn: 101275
 2010-04-14 20:05:00 +00:00
Dan Gohman
c64d1d02a3 Factor out EH landing pad code into a separate function, and constify 
a bunch of stuff to support it.

llvm-svn: 101273
 2010-04-14 19:53:31 +00:00
Dan Gohman
9ed196804f Fix a missing #include. 
llvm-svn: 101270
 2010-04-14 18:57:18 +00:00
Dan Gohman
2d61a3f384 Refine #includes. 
llvm-svn: 101269
 2010-04-14 18:49:17 +00:00
Dan Gohman
d7fc9e258b Split ISD::NodeType and a few related items out of SelectionDAGNodes.h 
into a separate header to allow clients to use them without pulling in
SelectionDAG-specific declarations.

llvm-svn: 101268
 2010-04-14 18:44:34 +00:00
Dan Gohman
4fd4153d52 Delete an unused function. 
llvm-svn: 101263
 2010-04-14 17:22:02 +00:00
Dan Gohman
a1656764cc Trim #includes. 
llvm-svn: 101255
 2010-04-14 16:54:39 +00:00
Dan Gohman
2c09c272ff Move the code for emitting livein copies out of SelectionDAGISel. 
llvm-svn: 101254
 2010-04-14 16:51:49 +00:00
Dan Gohman
d044ebe427 Fix whitespace, comments. 
llvm-svn: 101247
 2010-04-14 15:59:02 +00:00
Dan Gohman
b1dc3b2278 Add explicit keywords. 
llvm-svn: 101246
 2010-04-14 15:50:02 +00:00
Dan Gohman
17f6c8fd41 Use C++, not C++-standard-library-internals-ese. 
llvm-svn: 101245
 2010-04-14 15:41:50 +00:00
Dan Gohman
ff3522de68 Make SuccIterator's private parts private too. 
llvm-svn: 101244
 2010-04-14 15:38:15 +00:00
Dan Gohman
c9fee63fce Make helper utility members private. 
llvm-svn: 101243
 2010-04-14 15:33:04 +00:00
Chris Lattner
124dc743bc implement mc asmparser support for '.', which gets the 
current PC.  rdar://7834775

We now produce an identical .o file compared to the cctools
assembler for something like this:

_f0:
L0:
        jmp L1
        .long . - L0
L1:
        jmp A
        .long . - L1

        .zerofill __DATA,_bss,A,0

llvm-svn: 101227
 2010-04-14 04:40:28 +00:00
Daniel Dunbar
d3c1f99fa1 Fix -Asserts warnings. 
llvm-svn: 101191
 2010-04-13 23:34:11 +00:00
Sean Callanan
b76f351c0b Quick fix for build errors caused by undefined 
NULL.

llvm-svn: 101180
 2010-04-13 21:36:35 +00:00
Sean Callanan
29a7152676 Fixed a nasty layering violation in the edis source 
code.  It used to #include the enhanced disassembly
information for the targets it supported straight
out of lib/Target/{X86,ARM,...} but now it uses a
new interface provided by MCDisassembler, and (so
far) implemented by X86 and ARM.

Also removed hacky #define-controlled initialization
of targets in edis.  If clients only want edis to
initialize a limited set of targets, they can set
--enable-targets on the configure command line.

llvm-svn: 101179
 2010-04-13 21:21:57 +00:00
Dan Gohman
2bca857d78 Eliminate MachineBasicBlock::const_livein_iterator and make 
MachineBasicBlock::livein_iterator a const_iterator, because
clients shouldn't ever be using the iterator interface to
mutate the livein set.

llvm-svn: 101147
 2010-04-13 16:57:55 +00:00
Dan Gohman
22f72726f3 Move MachineRegisterInfo's isLiveIn and isLiveOut out of line. 
llvm-svn: 101145
 2010-04-13 16:55:37 +00:00
Dan Gohman
9652ec03e5 Delete an unused member variable. 
llvm-svn: 101143
 2010-04-13 16:51:39 +00:00
Owen Anderson
73c74b3153 SCCVN, we hardly knew ye! 
llvm-svn: 101117
 2010-04-13 05:24:08 +00:00
Daniel Dunbar
6f0c74d0b4 VMCore: Add Type::getIntN[Ptr]Ty, which are the obvious generic forms of 
Type::getInt{1,8,...}[Ptr]Ty, so code can consistently use the methods on Type
without occasionally needed to call IntegerType::get.

llvm-svn: 101111
 2010-04-13 01:39:07 +00:00
Daniel Dunbar
dbce77ee48 IRBuilder: Add Create{Shl,LShr,And,Or,Xor} methods from uin64_t and APInt constants. 
llvm-svn: 101110
 2010-04-13 01:38:57 +00:00
Chris Lattner
dabcd9738c add llvm codegen support for -ffunction-sections and -fdata-sections, 
patch by Sylvere Teissier!

llvm-svn: 101106
 2010-04-13 00:36:43 +00:00
Sean Callanan
7cd2b6d33b Bug fix: included System/Types.h instead of 
inttypes.h to allow building on Windows.

llvm-svn: 101062
 2010-04-12 20:21:56 +00:00
Dan Gohman
ff456e3f4d Enhance ScalarEvolution::isKnownPredicate with support for 
loop conditions which are invariants.

llvm-svn: 100995
 2010-04-11 22:16:48 +00:00
Dan Gohman
a76ed3e23b Fix a comment. 
llvm-svn: 100992
 2010-04-11 22:07:56 +00:00
Dan Gohman
25305cd2d1 Fix a #include. 
llvm-svn: 100980
 2010-04-11 19:27:52 +00:00
Dan Gohman
9ca5efece4 Rename isLoopGuardedByCond to isLoopEntryGuardedByCond, to emphasise 
that it's only testing for the entry condition, not full loop-invariant
conditions.

llvm-svn: 100979
 2010-04-11 19:27:13 +00:00
Benjamin Kramer
adc8df5270 utostr isn't going away too soon, try to make it slightly smaller. 
llvm-svn: 100977
 2010-04-11 19:00:03 +00:00