Commit Graph

40315 Commits

Author SHA1 Message Date
Bruno Cardoso Lopes e3acfd4d58 Add more 256-bit forms for a bunch of regular AVX instructions
Add 64-bit (GR64) versions of some instructions (which are not
described in their SSE forms, but are described in AVX)

llvm-svn: 109063
2010-07-21 23:53:50 +00:00
Dan Gohman 2637cc1a38 Make NamedMDNode not be a subclass of Value, and simplify the interface
for creating and populating NamedMDNodes.

llvm-svn: 109061
2010-07-21 23:38:33 +00:00
Rafael Espindola 350b1a449f Fixes win64. It was broken by a previous patch where I missed the !isWin64
and then forced every register to be a vr128 on win64.

llvm-svn: 109060
2010-07-21 23:19:57 +00:00
Owen Anderson ac4a1ede17 Add INSTANTIATE_AG_PASS, which combines RegisterPass<> with RegisterAnalysisGroup<> for pass registration.
llvm-svn: 109058
2010-07-21 23:07:00 +00:00
Jim Grosbach 965a73a28c For ARM/Darwin, add a dwarf entry indicating whether a function is arm or thumb
rdar://8202967

llvm-svn: 109057
2010-07-21 23:03:52 +00:00
Chris Lattner 5c91a5e747 add some rough support for making mcinst lowering work without an
asmprinter or mangler around.  This is option #B for killing off 
X86InstrInfo::GetInstSizeInBytes.  Option #A (killing 
"needsexactsize") was sent for consideration to llvmdev.

llvm-svn: 109056
2010-07-21 23:03:35 +00:00
Eric Christopher 84bdfd80df Baby steps towards ARM fast-isel.
llvm-svn: 109047
2010-07-21 22:26:11 +00:00
Owen Anderson a57b97e7e7 Fix batch of converting RegisterPass<> to INTIALIZE_PASS().
llvm-svn: 109045
2010-07-21 22:09:45 +00:00
Bruno Cardoso Lopes 6238c1d102 Add missing AVX convert instructions. Those instructions are not described in their SSE forms (although they exist), but add the AVX forms anyway, so the assembler can benefit from it
llvm-svn: 109039
2010-07-21 21:37:59 +00:00
Jim Grosbach 6cd0deb997 tidy up.
llvm-svn: 109038
2010-07-21 21:36:25 +00:00
Jim Grosbach a8683bb033 80 column and trailing whitespace cleanup
llvm-svn: 109037
2010-07-21 21:21:52 +00:00
Dan Gohman 47dc8fd67a Add some debug output to help diagnose PR7689.
llvm-svn: 109036
2010-07-21 21:18:37 +00:00
Nate Begeman 784e062b2a Fix a couple issues with Win64 ABI
1) all registers were spilled as xmm, regardless of actual size
2) win64 abi doesn't do the varargs-size-in-%al thing

Still to look into:

xmm6-15 are marked as clobbered by call instructions on win64 even though they aren't.

llvm-svn: 109035
2010-07-21 20:49:52 +00:00
Bruno Cardoso Lopes 19b3830142 Avoid AVX instructions to be selected instead of its SSE form
llvm-svn: 109032
2010-07-21 20:38:42 +00:00
Dan Gohman 477498f3d7 NamedMDNode is never an operand.
llvm-svn: 109031
2010-07-21 20:25:43 +00:00
Dan Gohman 093cb79d4b Disallow null as a named metadata operand.
Make MDNode::destroy private.
Fix the one thing that used MDNode::destroy, outside of MDNode itself.

One should never delete or destroy an MDNode explicitly. MDNodes
implicitly go away when there are no references to them (implementation
details aside).

llvm-svn: 109028
2010-07-21 18:54:18 +00:00
Dan Gohman 846b9e15db Use TrackingVH instead of WeakVH for NamedMDNode's operands, since nodes
referenced by NamedMDNodes shouldn't be deleted.

llvm-svn: 109021
2010-07-21 18:01:42 +00:00
Dan Gohman 2b68cc68ed Tidy.
llvm-svn: 109020
2010-07-21 17:53:53 +00:00
Owen Anderson 845b14ef66 Move the smarts of AnalysisGroup registration into PassRegistry.
llvm-svn: 109019
2010-07-21 17:52:45 +00:00
Rafael Espindola 4277e14dc4 Fix calling convention on ARM if vfp2+ is enabled.
llvm-svn: 109009
2010-07-21 11:38:30 +00:00
Eric Christopher d27913e516 Pulling out previous patch, must've run the tests in
the wrong directory.

llvm-svn: 109005
2010-07-21 09:23:56 +00:00
Eric Christopher b2d1067024 Lower MEMBARRIER on x86 and support processors without SSE2.
Fixes a pile of libgomp failures in the llvm-gcc testsuite due
to the libcall not existing.

llvm-svn: 109004
2010-07-21 09:05:23 +00:00
Lang Hames bdafcc633d Changed OStream templates to functions on raw_ostream, removed the unused "renderWarnings" function.
llvm-svn: 109003
2010-07-21 09:02:06 +00:00
Bruno Cardoso Lopes cdbec62510 Add AVX only vzeroall and vzeroupper instructions
llvm-svn: 109002
2010-07-21 08:56:24 +00:00
Evan Cheng a77f3d3b37 Teach bottom up pre-ra scheduler to track register pressure. Work in progress.
llvm-svn: 108991
2010-07-21 06:09:07 +00:00
Bruno Cardoso Lopes 3499934da6 Add new AVX vpermilps, vpermilpd and vperm2f128 instructions
llvm-svn: 108984
2010-07-21 03:07:42 +00:00
Bruno Cardoso Lopes 3ceaf7a0a2 Add new AVX vmaskmov instructions, and also fix the VEX encoding bits to support it
llvm-svn: 108983
2010-07-21 02:46:58 +00:00
Dan Gohman a2489d1bb6 Give MDNode printing has access to the current Module in more
cases. This will be needed when function-local metadata can
appear in places that aren't intrinsic function arguments.

llvm-svn: 108971
2010-07-20 23:55:01 +00:00
Jakob Stoklund Olesen 0fef9dda8e Change the createSpiller interface to take a MachineFunctionPass argument.
The spillers can pluck the analyses they need from the pass reference.

Switch some never-null pointers to references.

llvm-svn: 108969
2010-07-20 23:50:15 +00:00
Dan Gohman afbe4a7a10 Make this code a little more readable.
llvm-svn: 108968
2010-07-20 23:49:44 +00:00
Dan Gohman 7373bd9973 Use DebugLocs instead of MDNodes.
llvm-svn: 108967
2010-07-20 23:49:05 +00:00
Owen Anderson 7fc9fe7553 Move the handling of PassRegistrationListener's to PassRegistry.
llvm-svn: 108966
2010-07-20 23:41:56 +00:00
Bruno Cardoso Lopes e706501975 Add new AVX vextractf128 instructions
llvm-svn: 108964
2010-07-20 23:19:02 +00:00
Dan Gohman b22dd85bb3 Fix a typo.
llvm-svn: 108962
2010-07-20 23:10:36 +00:00
Dan Gohman 5c2e65b7bf Don't look up the "dbg" metadata kind by name.
llvm-svn: 108961
2010-07-20 23:09:34 +00:00
Chris Lattner 41ff5d4d91 make asmprinter optional, even though passing in null will cause things to explode right now.
llvm-svn: 108955
2010-07-20 22:45:33 +00:00
Chris Lattner b4dc58975b continue pushing dependencies around.
llvm-svn: 108952
2010-07-20 22:35:40 +00:00
Chris Lattner 2366d95af9 reduce X86MCInstLower dependencies on asmprinter.
llvm-svn: 108950
2010-07-20 22:30:53 +00:00
Chris Lattner 7fbdd7c852 pass around MF, not MMI.
llvm-svn: 108949
2010-07-20 22:26:07 +00:00
Dan Gohman 48a995f7e9 Rename removeAllMetadata to clearMetadataHashEntries and simplify
it to just do the things that need to be done when an instruction
is deleted.

llvm-svn: 108948
2010-07-20 22:25:04 +00:00
Chris Lattner d3f3a89425 cleanups.
llvm-svn: 108947
2010-07-20 22:23:57 +00:00
Chris Lattner 5ca516b87c move two asmprinter methods into the asmprinter .cpp file.
llvm-svn: 108945
2010-07-20 22:18:19 +00:00
Jakob Stoklund Olesen ed4075cc3b Implement loop splitting analysis.
Determine which loop exit blocks need a 'pre-exit' block inserted.
Recognize when this would be impossible.

llvm-svn: 108941
2010-07-20 21:46:58 +00:00
Dan Gohman 43aa8f03c1 Add support for remapping metadata kind IDs when reading in a
bitcode file, so that two bitcode files where the same metadata kind
name happens to have been assigned a different ID can still be
linked together.

Eliminate the restriction that metadata kind IDs can't be 0.

Change MD_dbg from 1 to 0, because we can now, and because it's
less mysterious that way.

llvm-svn: 108939
2010-07-20 21:42:28 +00:00
Dale Johannesen 6e5ec6263e Fix test for switch statements and increase
threshold a bit per experimentation.

llvm-svn: 108935
2010-07-20 21:29:12 +00:00
Owen Anderson 4154061b92 Move more functionality from Pass.cpp to PassRegistry.cpp. This global will go away eventually, but for now we still need it around.
llvm-svn: 108932
2010-07-20 21:22:24 +00:00
Chris Lattner cbe9856fce prune #includes a little.
llvm-svn: 108929
2010-07-20 21:17:29 +00:00
Matt Fleming a8f6c1cc26 Add some more handlers for ELF section directives.
llvm-svn: 108928
2010-07-20 21:12:46 +00:00
Dan Gohman 47a0f0d56f Remove setDbgMetadata and getDbgMetadata; their users have been
replaced with setDebugLoc and getDebugLoc.

llvm-svn: 108914
2010-07-20 20:18:21 +00:00
Owen Anderson 14d74d649a Let's get those buildbots green: #include is needed in the header, not just the implementation.
llvm-svn: 108912
2010-07-20 20:16:11 +00:00
Dan Gohman d2c7e52d05 Use getDebugLoc and setDebugLoc instead of getDbgMetadata and setDbgMetadata,
avoiding MDNode overhead.

llvm-svn: 108909
2010-07-20 20:09:07 +00:00
Chris Lattner 073660336c apparently also missing an include.
llvm-svn: 108908
2010-07-20 20:06:19 +00:00
Chris Lattner 4e8e93f142 this is in System
llvm-svn: 108895
2010-07-20 19:54:01 +00:00
Bruno Cardoso Lopes 3b505848fd Add new AVX instruction vinsertf128
llvm-svn: 108892
2010-07-20 19:44:51 +00:00
Chris Lattner 6faea9668f turn this into a normal header.
llvm-svn: 108891
2010-07-20 19:43:19 +00:00
Chris Lattner 55cdb62dd0 hopefully heal the linux builders
llvm-svn: 108890
2010-07-20 19:40:51 +00:00
Owen Anderson 660466ed42 I just fail with SVN today.
llvm-svn: 108888
2010-07-20 19:23:55 +00:00
Chris Lattner 91773ea9b2 there is no reason to dynamically generate a static header.
llvm-svn: 108887
2010-07-20 18:59:58 +00:00
Chris Lattner 7e52a45f8a drop edinfo.inc into the objdir for src!=objdir builds.
llvm-svn: 108886
2010-07-20 18:53:27 +00:00
Eric Christopher 529989b8b6 Update header.
llvm-svn: 108883
2010-07-20 18:46:43 +00:00
Owen Anderson 1e8ae64f83 Convert the internal PassRegistrar class into a new, external PassRegistry class. No intended functionality change at this point.
llvm-svn: 108877
2010-07-20 18:39:06 +00:00
Chris Lattner 79d68ddda8 hopefully teach cmake to build the .inc file.
llvm-svn: 108874
2010-07-20 18:33:21 +00:00
Chris Lattner 6219596ff6 cmake too
llvm-svn: 108872
2010-07-20 18:30:37 +00:00
Chris Lattner 3a14721829 forgot to add a file
llvm-svn: 108870
2010-07-20 18:29:50 +00:00
Chris Lattner 979634bbb0 start straightening out libedis's dependencies and make it fit
better in the llvm world.  Among other things, this changes:

1. The guts of libedis are now moved into lib/MC/MCDisassembler
2. llvm-mc now depends on lib/MC/MCDisassembler, not tools/edis,
   so edis and mc don't have to be built in series.
3. lib/MC/MCDisassembler no longer depends on the C api, the C
   API depends on it.
4. Various code cleanup changes. 

There is still a lot to be done to make edis fit with the llvm
design, but this is an incremental step in the right direction.

llvm-svn: 108869
2010-07-20 18:25:19 +00:00
Dan Gohman 12725c7d46 Remember that the induction variable is always a PHINode and
use getIncomingValueForBlock instead of
LoopInfo::getCanonicalInductionVariableIncrement.

llvm-svn: 108865
2010-07-20 17:18:52 +00:00
Dan Gohman 625fd2292d Fix SCEV denormalization of expressions where the exit value from
one loop is involved in the increment of an addrec for another
loop. This fixes rdar://8168938.

llvm-svn: 108863
2010-07-20 17:06:20 +00:00
Owen Anderson 3183ef1120 Pull out r108755. After offline discussion with Chris, we're going to go a different direction with this.
llvm-svn: 108856
2010-07-20 16:55:05 +00:00
Dan Gohman 46f00a25f9 Add a fast path for x - x.
llvm-svn: 108855
2010-07-20 16:53:00 +00:00
Dan Gohman 31158756e4 Simplify this code; LoopInfo::getCanonicalInductionVariable will only
find integer induction variables.

llvm-svn: 108853
2010-07-20 16:46:58 +00:00
Dan Gohman 4fd92434f1 Make getOrInsertCanonicalInductionVariable guarantee that its
result is a PHINode*.

llvm-svn: 108852
2010-07-20 16:44:52 +00:00
Dan Gohman 191f2e4dbd Change an argument from an Instruction* to a Value*, which is all
that is needed here.

llvm-svn: 108850
2010-07-20 16:34:50 +00:00
Dan Gohman d1488fd8bc Minor code cleanups.
llvm-svn: 108848
2010-07-20 16:32:11 +00:00
Jakob Stoklund Olesen ff095507e3 Appease the colonials.
llvm-svn: 108845
2010-07-20 16:12:37 +00:00
Jim Grosbach 3680f70c9d Using BIC for immediates needs an extra bump for its complexity to get
instruction selection to prefer it when possible. rdar://7903972

llvm-svn: 108844
2010-07-20 16:07:04 +00:00
Jakob Stoklund Olesen 36d12c679d Beginning SplitKit - utility classes for live range splitting.
This is a work in progress. So far we have some basic loop analysis to help
determine where it is useful to split a live range around a loop.

The actual loop splitting code from Splitter.cpp is also going to move in here.

llvm-svn: 108842
2010-07-20 15:41:07 +00:00
Jim Grosbach 9c7708cc1b Removed un-used code.
llvm-svn: 108841
2010-07-20 14:51:32 +00:00
Lang Hames 31dfb75b52 Updated css classes for the pressure table legend.
llvm-svn: 108839
2010-07-20 14:35:55 +00:00
Lang Hames 2ff2193a80 Oops - I tables render poorly in Chrome without this explicit height specification.
llvm-svn: 108824
2010-07-20 10:29:46 +00:00
Lang Hames a475ab7f02 Use run-length encoding to represent identical adjacent cells in the pressure
and interval table. Reduces output HTML file sizes by ~80% in my test cases.

Also fix access of private member type by << operator.

llvm-svn: 108823
2010-07-20 10:18:54 +00:00
Lang Hames 716b184108 Added support for turning HTML indentation on and off (indentation off by default).
Reduces output file size ~20% on my test cases.

llvm-svn: 108822
2010-07-20 09:13:29 +00:00
Bruno Cardoso Lopes 160695fecb Fix PR7174, a couple o Mips fixes:
- Fix a typo for PIC check during jmp table lowering
- Also fix the "first jump table basic block is not
considered only reachable by fall through" problem, use this
ad-hoc solution until I come up with something better.

Patch by stetorvs@gmail.com

llvm-svn: 108820
2010-07-20 08:37:04 +00:00
Owen Anderson 81781220d2 Speculatively revert r108813, in an attempt to get the self-host buildbots working again. I don't see why this patch
would cause them to fail the way they are, but none of the other intervening patches seem likely either.

llvm-svn: 108818
2010-07-20 08:26:15 +00:00
Bruno Cardoso Lopes ea7863647b Fix Mips PR7473. Patch by stetorvs@gmail.com
llvm-svn: 108816
2010-07-20 07:58:51 +00:00
Lang Hames a93fe2de3c Switched to rendering after allocation (but before rewriting) in PBQP.
Updated renderer to use allocation information from VirtRegMap (if
available) to render spilled intervals differently.

llvm-svn: 108815
2010-07-20 07:41:44 +00:00
Owen Anderson 8dc129325f Reapply r108794, a fix for the failing test from last time.
llvm-svn: 108813
2010-07-20 06:52:42 +00:00
Eric Christopher 4adaccf0bf Constify some arguments.
llvm-svn: 108812
2010-07-20 06:52:21 +00:00
Daniel Dunbar 4a35d6f8cd Revert r108794, "Separate PassInfo into two classes: a constructor-free
superclass (StaticPassInfo) and a constructor-ful subclass (PassInfo).", it is
breaking teh everything.

llvm-svn: 108805
2010-07-20 03:06:07 +00:00
Owen Anderson e7c5fe586a Separate PassInfo into two classes: a constructor-free superclass (StaticPassInfo) and a constructor-ful subclass (PassInfo).
llvm-svn: 108794
2010-07-20 01:19:58 +00:00
Dan Gohman 3ff13affda Minor code simplification.
llvm-svn: 108793
2010-07-20 00:57:18 +00:00
Dale Johannesen 08645f1991 Don't hoist things out of a large switch inside a
loop, for the reasons in the comments.  This is a
major win on 253.perlbmk on ARM Darwin.  I expect it
to be a good heuristic in general, but it's possible
some things will regress; I'll be watching.
7940152.

llvm-svn: 108792
2010-07-20 00:50:13 +00:00
Bruno Cardoso Lopes 14c5fd437c Add AVX vbroadcast new instruction
llvm-svn: 108788
2010-07-20 00:11:13 +00:00
Daniel Dunbar 0aff8033c6 Update CMake files.
llvm-svn: 108787
2010-07-20 00:08:13 +00:00
Stuart Hastings 61475c5c3c Correct line info for declarations/definitions. Radar 8063111.
llvm-svn: 108784
2010-07-19 23:56:30 +00:00
Chris Lattner b792b463af sink the arm implementations of ASmPrinter and MCInstLower
out of the AsmPrinter directory into libarm.  Now the
ARM InstPrinters depend jsut on the MC stuff, not on vmcore
or codegen.

llvm-svn: 108783
2010-07-19 23:44:46 +00:00
Chris Lattner 64fffadad3 fix a layering problem by moving the x86 implementation
of AsmPrinter and InstLowering into libx86 and out of the
asmprinter subdirectory.  Now X86/AsmPrinter just depends on
MC stuff, not all of codegen and LLVM IR.

llvm-svn: 108782
2010-07-19 23:41:57 +00:00
Bruno Cardoso Lopes 9de0ca73d4 Add 256-bit vaddsub, vhadd, vhsub, vblend and vdpp instructions!
llvm-svn: 108769
2010-07-19 23:32:44 +00:00
Devang Patel d61b735d25 Fix memory leak reported by valgrind.
Do not visit operands of old instruction. Visit all operands of new instruction.

llvm-svn: 108767
2010-07-19 23:25:39 +00:00
Dan Gohman b5e918dc05 After a custom inserter, in a block which has constant instructions,
update the current basic block in addition to the current insert
position, so that they remain consistent. This fixes rdar://8204072.

llvm-svn: 108765
2010-07-19 22:48:56 +00:00
Evan Cheng 10f99a3490 ARM has to provide its own TargetLowering::findRepresentativeClass because its scalar floating point registers alias its vector registers.
llvm-svn: 108761
2010-07-19 22:15:08 +00:00
Owen Anderson 0edf6a1131 Change the implemented interfaces list on PassInfo from a std::vector to a manually implemented
linked list.  This is a little slower and involves more malloc'ing, but these lists are
typically short, and it allows PassInfo to be entirely constant initializable.

llvm-svn: 108755
2010-07-19 21:44:48 +00:00
Daniel Dunbar 6b4391aa69 MC/Mach-O: Silently ignore .file directives instead of error'ing out on
them. They aren't important enough to abort the entire assembly, and failing
early makes testing more annoying.

llvm-svn: 108747
2010-07-19 20:44:20 +00:00
Daniel Dunbar 9db7d0addd X86: Mark JMP{32,64}[mr] as requires 32-bit/64-bit mode. They are the same
instruction, we only want to allow the one for the current subtarget.
 - This also fixes suffix matching for jmp instructions, because it eliminates
   the ambiguity between 'jmpl' and 'jmpq'.

llvm-svn: 108746
2010-07-19 20:44:16 +00:00
Owen Anderson 84774eda4b Tweak per Chris' comments.
llvm-svn: 108736
2010-07-19 19:23:32 +00:00
Evan Cheng 7a135510e3 Teach computeRegisterProperties() to compute "representative" register class for legal value types. A "representative" register class is the largest legal super-reg register class for a value type. e.g. On i386, GR32 is the rep register class for i8 / i16 / i32; on x86_64 it would be GR64.
This property will be used by the register pressure tracking instruction scheduler.

llvm-svn: 108735
2010-07-19 18:47:01 +00:00
Jakob Stoklund Olesen a58a7e7f9e Spillers may alter MachineLoopInfo when breaking critical edges, so make it
non-const.

llvm-svn: 108734
2010-07-19 18:41:20 +00:00
Devang Patel 18efced1a2 Fix PR 7662.
Do not try to insert local variable info to a DIE used for function declaration.

llvm-svn: 108731
2010-07-19 17:53:55 +00:00
Jim Grosbach 8d3ba7349c Since ARM emits inline jump tables as part of the ConstantIsland pass,
it should set the jump table encloding the EK_Inline. This prevents
a second, unused, copy of the table from being emitted after the function
body. PR6581.

llvm-svn: 108730
2010-07-19 17:20:38 +00:00
Jim Grosbach d9ad52adff revert so I can get the right PR# in the log message.
llvm-svn: 108727
2010-07-19 17:19:40 +00:00
Jim Grosbach c685756cfb Since ARM emits inline jump tables as part of the ConstantIsland pass,
it should set the jump table encloding the EK_Inline. This prevents
a second, unused, copy of the table from being emitted after the function
body. PR7499.

llvm-svn: 108722
2010-07-19 17:18:28 +00:00
Benjamin Kramer 58c283ee85 Update CMake build.
llvm-svn: 108700
2010-07-19 15:37:03 +00:00
Duncan Sands b1d61aab06 Expose BasicBlock::moveBefore and moveAfter in C API, patch
by Benjamin Saunders.

llvm-svn: 108699
2010-07-19 15:31:07 +00:00
Lang Hames 6624efb711 Render MachineFunctions to HTML pages, with options to render register
pressure estimates and liveness alongside.

Still experimental.

llvm-svn: 108698
2010-07-19 15:22:28 +00:00
Gabor Greif 39c06b3b23 precompute 20 tags
llvm-svn: 108695
2010-07-19 14:48:15 +00:00
Duncan Sands 953e617de6 Fix indentation.
llvm-svn: 108691
2010-07-19 09:36:45 +00:00
Duncan Sands 330134bf15 Expose JIT::recompileAndRelinkFunction for use through the C API.
Patch by Benjamin Saunders.

llvm-svn: 108690
2010-07-19 09:33:13 +00:00
Owen Anderson 9c271e2835 Remove r108639 now that it is handled by InstCombine instead.
llvm-svn: 108688
2010-07-19 08:10:24 +00:00
Owen Anderson 32a58342ed Reimplement r108639 in InstCombine rather than DAGCombine.
llvm-svn: 108687
2010-07-19 08:09:34 +00:00
Daniel Dunbar 9aefb8ee4c X86-64: Mark WINCALL and more tail call instructions as code gen only.
llvm-svn: 108685
2010-07-19 07:21:07 +00:00
Daniel Dunbar 2e9f58517d X86: Mark some tail call pseduo instruction as code gen only.
llvm-svn: 108684
2010-07-19 07:21:04 +00:00
Daniel Dunbar 1cd02510d3 X86: Mark In32/64BitMode on LEAVE[64] and SYSEXIT[64].
llvm-svn: 108683
2010-07-19 07:21:01 +00:00
Michael J. Spencer 2ed9f4bd39 _[A-Z] identifiers are reserved for the implementation.
llvm-svn: 108682
2010-07-19 06:26:19 +00:00
Daniel Dunbar b82cd9319b MC/X86: We now match instructions like "incl %eax" correctly for the arch we are
assembling; remove crufty custom cleanup code.

llvm-svn: 108681
2010-07-19 06:14:54 +00:00
Daniel Dunbar 150d948d3a X86: Mark MOV.*_{TC,NOREX} instruction as code gen only, they aren't real.
llvm-svn: 108680
2010-07-19 06:14:49 +00:00
Daniel Dunbar 961543377d X86: MOV8o8a, MOV8ao8, etc. are only valid in 32-bit mode.
llvm-svn: 108679
2010-07-19 06:14:44 +00:00
Michael J. Spencer e2da0a478d MC: Add WinCOFFStreamer implementation and merge common code from MachO
into MCObjectStreamer.

Origonal Windows COFF implementation by Nathan Jedffords.

llvm-svn: 108678
2010-07-19 06:13:10 +00:00
Daniel Dunbar eefe8616be TblGen/AsmMatcher: Add support for honoring instruction Requires<[]> attributes as part of the matcher.
- Currently includes a hack to limit ourselves to "In32BitMode" and "In64BitMode", because we don't have the other infrastructure to properly deal with setting SSE, etc. features on X86.

llvm-svn: 108677
2010-07-19 05:44:09 +00:00
Eli Friedman 20b026464e Make .align parse correctly on platforms where .align is measured in bytes.
llvm-svn: 108674
2010-07-19 04:17:25 +00:00
Daniel Dunbar 419197cc4d Target: Give the TargetAsmParser access to the TargetMachine.
- Unfortunate, but necessary for now to handle subtarget instruction matching. Eventually we should factor out the lower level target machine information so we don't need to do this.

llvm-svn: 108664
2010-07-19 00:33:49 +00:00
Daniel Dunbar 8897d479b5 MC/AsmParser: Stop playing unsafe member function pointer calls, this isn't
portable enough.
 - Downside is we now double dispatch through a stub function, but this isn't
   performance critical.

llvm-svn: 108661
2010-07-18 22:22:07 +00:00
Daniel Dunbar 40a564f09f MC/AsmParser: Fix .abort and .secure_log_unique to accept arbitrary token
sequences, not just strings.

llvm-svn: 108655
2010-07-18 20:15:59 +00:00
Daniel Dunbar 6fb1c3ad8a MC/AsmParser: Add macro argument substitution support.
llvm-svn: 108654
2010-07-18 19:00:10 +00:00
Daniel Dunbar 4323571efb MC/AsmParser: Add basic support for macro instantiation.
llvm-svn: 108653
2010-07-18 18:54:11 +00:00
Daniel Dunbar c1f58ec83c MC/AsmParser: Add basic parsing support for .macro definitions.
llvm-svn: 108652
2010-07-18 18:47:21 +00:00
Daniel Dunbar 828984ff4e MC/AsmParser: Add .macros_{off,on} support, not that makes sense since we don't
support macros.

llvm-svn: 108649
2010-07-18 18:38:02 +00:00
Daniel Dunbar d8a1845c31 MC/AsmParser: Use Error() instead of calling PrintMessage() directly.
llvm-svn: 108648
2010-07-18 18:31:45 +00:00
Daniel Dunbar ba6e354b61 MC/AsmParser: Fix TokError() to accept a Twine.
llvm-svn: 108647
2010-07-18 18:31:42 +00:00
Daniel Dunbar 2a2c6cf5f9 MC/AsmParser: Hide the AsmParser implementation.
llvm-svn: 108646
2010-07-18 18:31:38 +00:00
Daniel Dunbar 7f5bf5ae2a MC: Move several clients to using AsmParser constructor function.
llvm-svn: 108645
2010-07-18 18:31:33 +00:00
Douglas Gregor 8ff89f5c02 Fix struct/class mismatch
llvm-svn: 108642
2010-07-18 11:47:56 +00:00
Owen Anderson f7f9c8a2f7 Add a DAGCombine xform to fold away redundant float->double->float conversions around sqrt instructions.
I am assured by people more knowledgeable than me that there are no rounding issues in eliminating this.

This fixed <rdar://problem/8197504>.

llvm-svn: 108639
2010-07-18 08:47:54 +00:00
Lang Hames 1392b8eb79 Added -pbqp-pre-coalescing flag to PBQP. If enabled this will cause PBQP to require
LoopSplitter be run prior to register allocation.

Entirely for testing purposes at the moment.

llvm-svn: 108634
2010-07-18 00:57:59 +00:00
Gabor Greif 2960987ddb fullStopTag cannot happen here, it is handled above
llvm-svn: 108631
2010-07-17 20:52:46 +00:00
Bill Wendling ac67e99d53 Use isPrologLabel() instead of checking the opcode directly.
llvm-svn: 108628
2010-07-17 19:18:44 +00:00
Chris Lattner 5218343970 the stackifier is global!
llvm-svn: 108626
2010-07-17 17:42:04 +00:00
Chris Lattner 8f440bb9b0 doxygenify some comments.
llvm-svn: 108625
2010-07-17 17:40:51 +00:00
Zhongxing Xu b653ce648d update CMakeLists.txt
llvm-svn: 108620
2010-07-17 12:12:42 +00:00
Lang Hames 5864012cc0 Removed unused inRange variable.
llvm-svn: 108618
2010-07-17 11:43:07 +00:00
Lang Hames 225977d4f9 LoopSplitter - intended to split live intervals over loop boundaries.
Still very much under development. Comments and fixes will be forthcoming.

(This commit includes some small tweaks to LiveIntervals & LoopInfo to support the splitter)

llvm-svn: 108615
2010-07-17 07:34:01 +00:00
Owen Anderson 7d2818b073 Another attempt at getting the clang self-host to like my instcombine patch.
llvm-svn: 108614
2010-07-17 06:56:35 +00:00
Lang Hames 211e7ce7e7 Iterating over sets of pointers in a heuristic was a bad idea. Switching
any command line paramater changed the register allocation produced by
PBQP.

Turns out variety is not the spice of life.

Fixed some comparators, added others. All good now.

llvm-svn: 108613
2010-07-17 06:31:41 +00:00
Eli Friedman 9de5967244 Start of .sleb128/.uleb128 parsing support.
llvm-svn: 108612
2010-07-17 06:27:28 +00:00
Chris Lattner 718da70ca2 Fix PR7658, a problem where type refinement can trigger
constant replacement which was botching its handling of
types.  Use of getType() instead of getRawType() was causing
the type map in constant folding to be updated wrong.

llvm-svn: 108610
2010-07-17 06:13:52 +00:00
Eli Friedman 9e36dd001a Work-in-progress parsing for ELF .section directive.
llvm-svn: 108609
2010-07-17 04:29:04 +00:00
Jim Grosbach b97e2bbe32 Add combiner patterns to more effectively utilize the BFI (bitfield insert)
instruction for non-constant operands. This includes the case referenced
in the README.txt regarding a bitfield copy.

llvm-svn: 108608
2010-07-17 03:30:54 +00:00
Eli Friedman 56178a07bf Add support for parsing .size directives for ELF.
llvm-svn: 108606
2010-07-17 03:09:18 +00:00
Daniel Dunbar 01e3607d70 MC/AsmParser: Lift Run() and TargetParser to base class.
Also, add constructor function for creating AsmParser instances.

llvm-svn: 108604
2010-07-17 02:26:10 +00:00
Jim Grosbach 6e3b5fa91c add BFI to getTargetNodeName()
llvm-svn: 108603
2010-07-17 01:50:57 +00:00
Jim Grosbach adc81f8ee8 Fix logic think-o
llvm-svn: 108601
2010-07-17 01:22:19 +00:00
Eric Christopher 83f250f005 Remove unnecessary check that was subsumed into canRealignStack.
llvm-svn: 108588
2010-07-17 00:33:04 +00:00
Eric Christopher 0baaa9bcc1 Propagate alloca alignment information via variable size object frame
information.

No functional change yet.

llvm-svn: 108583
2010-07-17 00:28:22 +00:00
Eric Christopher 24e3aa011a Make more explicit and add some currently disabled error messages for
stack realignment on ARM.

Also check for function attributes as we do on X86 as well as
make explicit that we're checking can as well as needs in this function.

llvm-svn: 108582
2010-07-17 00:27:24 +00:00
Eric Christopher c0be37287c Make comment a bit more clear as well as return statement since
needsStackRealignment is currently checking the can conditions as well.

llvm-svn: 108581
2010-07-17 00:25:41 +00:00
Jim Grosbach 11013eda5a Add basic support to code-gen the ARM/Thumb2 bit-field insert (BFI) instruction
and a combine pattern to use it for setting a bit-field to a constant
value. More to come for non-constant stores.

llvm-svn: 108570
2010-07-16 23:05:05 +00:00
Dan Gohman 9a54c17582 Fix whitespace.
llvm-svn: 108569
2010-07-16 22:58:39 +00:00
Bill Wendling bf8370ff36 Consider this function:
void foo() { __builtin_unreachable(); }

It will output the following on Darwin X86:

_func1:
Leh_func_begin0:
        pushq %rbp
Ltmp0:
        movq %rsp, %rbp
Ltmp1:
Leh_func_end0:

This prolog adds a new Call Frame Information (CFI) row to the FDE with an
address that is not within the address range of the code it describes -- part is
equal to the end of the function -- and therefore results in an invalid EH
frame. If we emit a nop in this situation, then the CFI row is now within the
address range.

llvm-svn: 108568
2010-07-16 22:51:10 +00:00
Jakob Stoklund Olesen 8289f78569 Remove the isMoveInstr() hook.
llvm-svn: 108567
2010-07-16 22:35:46 +00:00
Jakob Stoklund Olesen 8e767bde16 Avoid isMoveInstr when printing XCore pseudo-moves.
llvm-svn: 108566
2010-07-16 22:35:37 +00:00
Jakob Stoklund Olesen 2c130b8ead Use MI.isCopy.
llvm-svn: 108565
2010-07-16 22:35:34 +00:00
Jakob Stoklund Olesen 54bcf5049e Use a small local function for a single remaining late isMoveInstr call in
Thumb2ITBlockPass.

llvm-svn: 108564
2010-07-16 22:35:32 +00:00
Bill Wendling 499f797cdd Rename DBG_LABEL PROLOG_LABEL, because it's only used during prolog emission and
thus is a much more meaningful name.

llvm-svn: 108563
2010-07-16 22:20:36 +00:00
Jakob Stoklund Olesen 8d51149102 Keep valgrind quiet.
The isLive() method can read uninitialized memory, but it still gives correct
results.

llvm-svn: 108561
2010-07-16 22:00:33 +00:00
Chris Lattner c9c22862d4 tidy up
llvm-svn: 108560
2010-07-16 21:20:46 +00:00
Jakob Stoklund Olesen b15cbd343c Remove remaining calls to TII::isMoveInstr.
llvm-svn: 108556
2010-07-16 21:03:55 +00:00
Jakob Stoklund Olesen 44629eb81b Emit COPY instead of FMR/FMSD instructions for floating point conversion on
PowerPC.

llvm-svn: 108555
2010-07-16 21:03:52 +00:00
Chris Lattner 27e997a168 eliminate unlockedRefineAbstractTypeTo, types are all per-llvmcontext,
so there is no locking involved in type refinement.

llvm-svn: 108553
2010-07-16 20:50:13 +00:00
Gabor Greif fee4dafbd0 get the first few tags from a precomputed table (count can be increased if desired)
llvm-svn: 108549
2010-07-16 20:35:19 +00:00
Eli Friedman ba9b25a6ba Add missing attributes to cpp backend.
llvm-svn: 108547
2010-07-16 18:47:20 +00:00
Dale Johannesen da3e05db70 Accept registers with P modifier. PR 5314.
llvm-svn: 108545
2010-07-16 18:35:46 +00:00
Jakob Stoklund Olesen 6353e534ec Teach PPCInstrInfo::storeRegToStackSlot and loadRegFromStackSlot to add memory
operands.

Hopefully this fixes the llvm-gcc-powerpc-darwin9 buildbot. It really shouldn't
since missing memoperands should not affect correctness.

llvm-svn: 108540
2010-07-16 18:22:00 +00:00
Dan Gohman efd7f9c360 Reorder the contents of various getAnalysisUsage functions, eliminating
a redundant loopsimplify run from the default -O2 sequence.

llvm-svn: 108539
2010-07-16 17:58:45 +00:00
Dan Gohman 1e936277c3 Revert r108369, sorting llvm.dbg.declare information by source position,
since it doesn't work for front-ends which don't emit column information
(which includes llvm-gcc in its present configuration), and doesn't
work for clang for K&R style variables where the variables are declared
in a different order from the parameter list.

Instead, make a separate pass through the instructions to collect the
llvm.dbg.declare instructions in order. This ensures that the debug
information for variables is emitted in this order.

llvm-svn: 108538
2010-07-16 17:54:27 +00:00
Jakob Stoklund Olesen c30b4ddc58 Remove the X86::FP_REG_KILL pseudo-instruction and the X86FloatingPointRegKill
pass that inserted it.

It is no longer necessary to limit the live ranges of FP registers to a single
basic block.

llvm-svn: 108536
2010-07-16 17:41:44 +00:00
Jakob Stoklund Olesen f0af236874 Search for a free FP register instead of just assuming FP7 is not in use.
llvm-svn: 108535
2010-07-16 17:41:40 +00:00
Owen Anderson 8a39c807e2 Remove the rest of my instcombine changes. Back to the drawing board on this one.
llvm-svn: 108530
2010-07-16 16:39:00 +00:00
Jakob Stoklund Olesen 0e5fb020a0 Allow x87 FP registers to be alive globally in a function.
FP_REG_KILL instructions are still inserted, but can be disabled by passing
-live-x87 to llc. The X87FPRegKillInserterPass is going to be removed shortly.

CFG edges are partioned into bundles where the x87 stack must be allocated
identically. Code is insertad at the end of each basic block that shuffles the
live FP registers to match the outgoing bundles expectations.

This fix is in preparation for some upcoming register allocator improvements
that may extend the live range of registers beyond a basic block, similar to
LICM. It also provides a nice runtime speedup if you are building with
-mfpmath=387.

llvm-svn: 108529
2010-07-16 16:38:12 +00:00
Gabor Greif 6d673953e3 eliminate CallInst::ArgOffset
llvm-svn: 108522
2010-07-16 09:38:02 +00:00
Eli Friedman 17c5a23559 Get rid of a bunch of duplicated ELF enum values.
llvm-svn: 108520
2010-07-16 07:53:29 +00:00
Nick Lewycky 375efe3157 Arrays and vectors with different numbers of elements are not equivalent.
llvm-svn: 108517
2010-07-16 06:31:12 +00:00
Tobias Grosser 3d84c9c793 LoopSimplify does not update domfrontier correctly.
This fixes PR7649.

llvm-svn: 108513
2010-07-16 05:59:45 +00:00
Tobias Grosser bd7c9f701b Add dump() to DominanceFrontier
llvm-svn: 108512
2010-07-16 05:59:39 +00:00
Jakob Stoklund Olesen 37c42a3d02 Remove many calls to TII::isMoveInstr. Targets should be producing COPY anyway.
TII::isMoveInstr is going tobe completely removed.

llvm-svn: 108507
2010-07-16 04:45:42 +00:00
Dan Gohman 103c4ebea5 Use the source-order scheduler instead of the "fast" scheduler at -O0,
because it's more likely to keep debug line information in its original
order.

llvm-svn: 108496
2010-07-16 02:01:19 +00:00
Eric Christopher 15a81cddb4 Also revert 108422, it's causing some test failures.
Working on testcases for Owen.

llvm-svn: 108494
2010-07-16 01:36:12 +00:00
Dale Johannesen bfd4fd7bb7 The SelectionDAGBuilder's handling of debug info, on rare
occasions, caused code to be generated in a different order.
All cases I've seen involved float softening in the type
legalizer, and this could be perhaps be fixed there, but
it's better not to generate things differently in the first
place.  7797940 (6/29/2010..7/15/2010).

llvm-svn: 108484
2010-07-16 00:02:08 +00:00
Bill Wendling 4bda1c8e68 Revert. This isn't the correct way to go.
llvm-svn: 108478
2010-07-15 23:42:21 +00:00
Dan Gohman fbbdfcaea7 Fix the order that SCEVExpander considers add operands in so that
it doesn't miss an opportunity to form a GEP, regardless of the
relative loop depths of the operands. This fixes rdar://8197217.

llvm-svn: 108475
2010-07-15 23:38:13 +00:00
Bill Wendling 973dc3b1d8 Handle code gen for the unreachable instruction if it's the only instruction in
the function. We'll just turn it into a "trap" instruction instead.

The problem with not handling this is that it might generate a prologue without
the equivalent epilogue to go with it:

$ cat t.ll
define void @foo() {
entry:
  unreachable
}
$ llc -o - t.ll -relocation-model=pic -disable-fp-elim -unwind-tables
        .section        __TEXT,__text,regular,pure_instructions
        .globl  _foo
        .align  4, 0x90
_foo:                                   ## @foo
Leh_func_begin0:
## BB#0:                                ## %entry
        pushq   %rbp
Ltmp0:
        movq    %rsp, %rbp
Ltmp1:
Leh_func_end0:
...

The unwind tables then have bad data in them causing all sorts of problems.

Fixes <rdar://problem/8096481>.

llvm-svn: 108473
2010-07-15 23:32:40 +00:00
Evan Cheng 55f0c6b9fc Split -enable-finite-only-fp-math to two options:
-enable-no-nans-fp-math and -enable-no-infs-fp-math. All of the current codegen fp math optimizations only care whether the fp arithmetics arguments and results can never be NaN.

llvm-svn: 108465
2010-07-15 22:07:12 +00:00
Chris Lattner 60b131654b fix the definitions of ConstTextCoalSection/ConstDataCoalSection
to keep "Text" in sync with the "pure instructions" section attribute.
Lack of this attribute was preventing the assembler from emitting
multibyte noops instructions for templates (and inlines, and other
coalesced stuff) and was causing the assembler to mismatch .o files.

This fixes rdar://8018335

llvm-svn: 108461
2010-07-15 21:22:00 +00:00
Chris Lattner c2b3675f8b fix indentation and 80 cols
llvm-svn: 108460
2010-07-15 21:19:31 +00:00
Dan Gohman 1415208292 Don't merge uses when they are targetting fixup sites with
different widths. In a use with a narrower fixup, formulae
may be wider than the fixup, in which case the high bits
aren't necessarily meaningful, so it isn't safe to reuse
them for uses with wider fixups.

This fixes PR7618, though the testcase is too large for a
reasonable regression test, since it heavily dependes on
hitting LSR's heuristics in a certain way.

llvm-svn: 108455
2010-07-15 20:24:58 +00:00
Chris Lattner 620693806a fix the encoding of MMX_MOVFR642Qrr, it starts with 0xF2 not 0xF3,
this fixes rdar://8192860.  Unfortunately it can only be triggered
with llc because llvm-mc matches another (correctly encoded) version
of this, so no testcase.

llvm-svn: 108454
2010-07-15 20:13:34 +00:00
Dan Gohman a1501b9c50 Use dbgs() instead of errs() in a DEBUG.
llvm-svn: 108453
2010-07-15 20:12:42 +00:00
Bill Wendling 2da75ef315 Use std::vector instead of TargetRegisterInfo::FirstVirtualRegister.
llvm-svn: 108452
2010-07-15 20:04:36 +00:00
Dan Gohman 64b1e82a7c Teach ScalarEvolution how to fold trunc(undef) and anyext(undef) to undef.
This helps LSR behave more consistently on bugpoint-reduced testcases.

llvm-svn: 108451
2010-07-15 20:02:11 +00:00
Bill Wendling dd5e9d8faf Use std::vector instead of TargetRegisterInfo::FirstVirtualRegister.
llvm-svn: 108450
2010-07-15 20:01:02 +00:00
Bill Wendling 51a9c0a1b3 Use std::vector instead of TargetRegisterInfo::FirstVirtualRegister. This time
make sure to allocate enough space in the std::vector.

llvm-svn: 108449
2010-07-15 19:58:14 +00:00
Bill Wendling 5a8d15c553 Reserve a goodly amount of room for the vectors.
llvm-svn: 108448
2010-07-15 19:41:20 +00:00
Devang Patel df09db62e2 Fix crash reported in PR7653.
llvm-svn: 108441
2010-07-15 18:45:27 +00:00
Bill Wendling 030b0286ec Use std::vector instead of TargetRegisterInfo::FirstVirtualRegister.
llvm-svn: 108440
2010-07-15 18:43:09 +00:00
Bill Wendling 57681404b0 Use std::vector instead of TargetRegisterInfo::FirstVirtualRegister.
llvm-svn: 108438
2010-07-15 18:40:50 +00:00
Owen Anderson eaf64d5c1e Speculatively revert r108429 to fix the clang self-host.
llvm-svn: 108436
2010-07-15 18:18:57 +00:00
Owen Anderson eb08d01061 Per Chris' suggestion, get rid of the select canonicalization and just add
the corresponding or-icmp-and pattern.  This has the added benefit of doing
the matching earlier, and thus being less susceptible to being confused by
earlier transforms.

llvm-svn: 108429
2010-07-15 17:24:23 +00:00
Owen Anderson 13700ebb02 Remove unneeded check, and correct style.
llvm-svn: 108427
2010-07-15 16:38:22 +00:00
Dan Gohman 4afd412d6b Watch out for a constant offset cancelling out a base register, forming
a zero. This situation arrises in Fortran code with induction variables
that start at 1 instead of 0. This fixes PR7651.

llvm-svn: 108424
2010-07-15 15:14:45 +00:00
Owen Anderson 7151dfd48a Reapply r108378, with bugfixes, testcase, and improved comment formatting.
This now passes LIT, nighty test, and llvm-gcc bootstrap on my machine.

llvm-svn: 108422
2010-07-15 15:00:23 +00:00
Gabor Greif 26ec65ac3c cache another dereferenced iterator
llvm-svn: 108421
2010-07-15 10:19:23 +00:00
Chris Lattner c48adb60ca revert bill's patches in an attempt to fix the buildbot.
llvm-svn: 108419
2010-07-15 06:51:46 +00:00
Nick Lewycky 485ce5a49c This is a full sentence.
llvm-svn: 108418
2010-07-15 06:51:22 +00:00
Nick Lewycky e6f3287cbb Disable aliases on all platforms.
llvm-svn: 108417
2010-07-15 06:48:56 +00:00
Chris Lattner 19eff2a9f6 Fix PR7647, handling the case when 'To' ends up being
mutated by recursive simplification.  This also enhances
ReplaceAndSimplifyAllUses to actually do a real RAUW
at the end of it, which updates any value handles
pointing to "From" to start pointing to "To".  This
seems useful for debug info and random other VH users.

llvm-svn: 108415
2010-07-15 06:36:08 +00:00
Chris Lattner e41ab07c61 make various clients of ReplaceAndSimplifyAllUses tolerate
it *changing* the things it replaces, not just causing them
to drop to null.  There is no functionality change yet, but 
this is required for a subsequent patch.

llvm-svn: 108414
2010-07-15 06:06:04 +00:00
Bill Wendling 1f7071a3e4 Fix headers.
llvm-svn: 108413
2010-07-15 06:05:18 +00:00
Bill Wendling e7e6ca5c57 Use std::vector instead of a hard-coded array. The length of that array could
get *very* large, but we only need it to be the size of the number of pregs.

llvm-svn: 108412
2010-07-15 06:04:38 +00:00
Bill Wendling d5b390189d Use std::vector instead of a hard-coded array. The length of that array could
get *very* large, but we only need it to be the size of thenumber of pregs.

llvm-svn: 108411
2010-07-15 05:56:32 +00:00
Eli Friedman 8b3a17e613 Revert r108401; it breaks bootstrap :(
llvm-svn: 108407
2010-07-15 05:09:31 +00:00
Eli Friedman fd473a746c Add AssertingVH which makes PR7647 break consistently.
llvm-svn: 108401
2010-07-15 04:46:14 +00:00
Eli Friedman e4be4308a9 Random note about bswap.
llvm-svn: 108396
2010-07-15 02:20:38 +00:00
Chris Lattner 28fd6785bc a more graceful fix for test/Other/inline-asm-newline-terminator.ll,
follow on to r103765

llvm-svn: 108390
2010-07-15 00:37:34 +00:00
Eli Friedman a8b4e3732b Speculatively revert r108378; may be causing bootstrap failures.
llvm-svn: 108389
2010-07-15 00:33:00 +00:00
Jakob Stoklund Olesen 8b1bb8cfbd Last COPY conversion.
llvm-svn: 108387
2010-07-14 23:58:21 +00:00
Bob Wilson 0b9aafddc5 Remove restriction on NEON alignment values. Some of the NEON ld/st
instructions use different values (e.g., 2-byte or 4-byte alignment).
Also fix ARMInstPrinter to print these alignments as bits instead of bytes.

llvm-svn: 108386
2010-07-14 23:54:43 +00:00
Jakob Stoklund Olesen 9b449d5a92 Use TargetOpcode::COPY instead of X86-native register copy instructions when
lowering atomics. This will allow those copies to still be coalesced after
TII::isMoveInstr is removed.

llvm-svn: 108385
2010-07-14 23:50:27 +00:00
Eric Christopher 474e56a2bf 80-col.
llvm-svn: 108381
2010-07-14 23:41:32 +00:00
Owen Anderson 37d91d84af Add instcombine transforms to optimize tests of multiple bits of the same value into a single larger comparison.
llvm-svn: 108378
2010-07-14 23:33:51 +00:00
Dan Gohman f10cd5c6cb Make the order in which variables are described in debug information
independent of the order that isel happens to visit the dbg_declare
intrinsics. This fixes a bug in which the formal arguments were
being printed in reverse order, now that fast isel is going bottom up.

llvm-svn: 108369
2010-07-14 23:08:16 +00:00
Chris Lattner 769aedd523 fix indentation
llvm-svn: 108368
2010-07-14 23:04:59 +00:00
Benjamin Kramer 92d8998348 Don't pass StringRef by reference.
llvm-svn: 108366
2010-07-14 22:38:02 +00:00
Dan Gohman c12a6731c5 Properly restore DebugLoc after leaving the local constant area.
llvm-svn: 108364
2010-07-14 22:01:31 +00:00
Dan Gohman 1513217e27 Just use getParent() instead of getModuleFromVal when the value is a Function.
llvm-svn: 108358
2010-07-14 21:12:44 +00:00
Dan Gohman efb8dbb3f1 Rename WriteConstantInt to WriteConstantInternal, to avoid confusion.
llvm-svn: 108357
2010-07-14 20:57:55 +00:00
Owen Anderson 2cfe91379b Extend SimplifyCFG's common-destination folding heuristic to allow a single
"bonus" instruction to be speculatively executed.  Add a heuristic to
ensure we're not tripping up out-of-order execution by checking that this bonus
instruction only uses values that were already guaranteed to be available.

This allows us to eliminate the short circuit in (x&1)&&(x&2).

llvm-svn: 108351
2010-07-14 19:52:16 +00:00
Dan Gohman 8939ba337d Factor out metadata parsing into a separate function.
llvm-svn: 108343
2010-07-14 18:26:50 +00:00
Chris Lattner 254858031a Merge lib/Target/X86/X86COFF.h into include/llvm/Support/COFF.h,
patch by Michael Spencer!

llvm-svn: 108342
2010-07-14 18:14:33 +00:00
Jim Grosbach a90af1ba38 Improve 64-subtraction of immediates when parts of the immediate can fit
in the literal field of an instruction. E.g.,
long long foo(long long a) {
  return a - 734439407618LL;
}

rdar://7038284

llvm-svn: 108339
2010-07-14 17:45:16 +00:00
Dan Gohman 042523340b Delete fast-isel's trivial load optimization; it breaks debugging because
it can look past points where a debugger might modify user variables.

llvm-svn: 108336
2010-07-14 17:25:37 +00:00
Bob Wilson 1aef53403f Add missing address register update to t2LDM_RET instruction.
Patch by Brian Lucas. PR7636.

llvm-svn: 108332
2010-07-14 16:02:13 +00:00
Duncan Sands 7a68cd094b Rather than using an ifdef on the target to zero out fields,
just use memset to zero the entire struct.

llvm-svn: 108330
2010-07-14 14:32:33 +00:00
Eli Friedman c4d70125ee A couple potential optimizations inspired by comment 4 in PR6773.
llvm-svn: 108328
2010-07-14 06:58:26 +00:00