Commit Graph

60127 Commits

Author SHA1 Message Date
Chris Lattner 4025306a91 disable optimizations in this directory for MSVC9. This avoids
an optimizer infinite loop on the file, PR6866.

llvm-svn: 101854
2010-04-20 01:11:32 +00:00
Johnny Chen 2161e9f03b Better error-handling for DisassembleThumb2DPModImm() with 2-reg operands where
d==15 is considered illegal.  Return false instead of assert().

llvm-svn: 101852
2010-04-20 01:01:57 +00:00
Eric Christopher 64831c6a4c 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 eadc04badc Remove this debug output; it isn't that useful, and it's incomplete
in the case where a basic block is split.

llvm-svn: 101850
2010-04-20 00:56:44 +00:00
Dan Gohman e450d7444d 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 aedb8a3535 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
Chris Lattner a5cdd5e6a2 make the inliner do less work for leaf functions.
llvm-svn: 101846
2010-04-20 00:47:08 +00:00
Chris Lattner e93846762a Fix rdar://7879828 - crash in CallGraph, a self host issue.
Arg promotion was deleting call graph nodes that still had references
from the 'indirect' CGN.  Like the inliner, it should only delete the
function if all references are gone.

llvm-svn: 101845
2010-04-20 00:46:50 +00:00
Dan Gohman 3df671a81c 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 ca35aa1122 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
Bob Wilson 92a4685dd2 Fix tests for Neon load/store intrinsics to match the i8* types expected by
the intrinsics.  The reason for those i8* types is that the intrinsics are
overloaded on the vector type and we don't have a way to declare an intrinsic
where one argument is an overloaded vector type and another argument is a
pointer to the vector element type.  The bitcasts added here will match what
the frontend will typically generate when these intrinsics are used.

llvm-svn: 101840
2010-04-20 00:17:16 +00:00
Johnny Chen f3dd8b9487 More IT instruction error-handling improvements from fuzzing.
llvm-svn: 101839
2010-04-20 00:15:41 +00:00
Dan Gohman be2e727a38 Revert 101825, which is causing trouble.
llvm-svn: 101832
2010-04-19 23:34:15 +00:00
Dan Gohman 35bc4d46cb Make BreakAntiDependencies' SUnits argument const, and make the Begin
and End arguments by-value rather than by-reference.

llvm-svn: 101830
2010-04-19 23:11:58 +00:00
Johnny Chen e62b680965 Better error handling of invalid IT mask '0000', instead of just asserting.
llvm-svn: 101827
2010-04-19 23:02:58 +00:00
Dan Gohman 8cccc542f6 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 5ccd0b3686 Delete an unnecessary reference to SelectionDAGISel::BB.
llvm-svn: 101824
2010-04-19 22:48:45 +00:00
Dan Gohman 7c0303a059 Eliminate the CurMBB member from SelectionDAGBuilder. For places that
need it, just pass around the parent block of the current instruction
explicitly.

llvm-svn: 101822
2010-04-19 22:41:47 +00:00
Dan Gohman e637ff5e9a 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
Johnny Chen 777346e749 According to A8.6.16 B (Encoding T3) and A8.3 Conditional execution -- A8.3.1
Pseudocode details of conditional, Condition bits '111x' indicate the
instruction is always executed.  That is, '1111' is a leagl condition field
value, which is now mapped to ARMCC::AL.

Also add a test case for condition field '1111'.

llvm-svn: 101817
2010-04-19 21:19:52 +00:00
Devang Patel 561fa8490e Fix typo. add a test case.
llvm-svn: 101812
2010-04-19 20:31:39 +00:00
Evan Cheng e19aa5cc52 More progress on promoting i16 operations to i32 for x86. Work in progress.
llvm-svn: 101808
2010-04-19 19:29:22 +00:00
Dan Gohman 1e95790fd4 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
Evan Cheng e7c21a4242 More 80 col violation.
llvm-svn: 101806
2010-04-19 19:17:44 +00:00
Devang Patel 6188093cca 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 c334960f16 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
Dan Gohman a91754da67 Move isInTailCallPosition out of SelectionDAGBuilder, as it isn't
SelectionDAG-specific.

llvm-svn: 101801
2010-04-19 18:41:46 +00:00
Dan Gohman 0557cd7d89 Enable -Wcast-qual for C++ files, where intentional qualifier-stripping can
be done with const_cast.

llvm-svn: 101798
2010-04-19 18:33:28 +00:00
Dan Gohman e6a9912a76 Remove -module, which appears to be a leftover from prior libtool usage.
llvm-svn: 101793
2010-04-19 18:11:02 +00:00
Dan Gohman b0071d041f This doesn't need SmallVector.h anymore.
llvm-svn: 101790
2010-04-19 17:51:31 +00:00
Mikhail Glushenkov 9cfb7051b6 Support .a files directly (without -l).
llvm-svn: 101789
2010-04-19 17:25:38 +00:00
Johnny Chen 25df2a75bd Better error-handling for DisassembleThumb2DPSoReg() where the 3-reg operand
instructions should have Rd (Inst{11-8}) != 0b1111.

Ref: A6.3 32-bit Thumb instruction encoding
     A6.3.11 Data-processing (shifted register)
llvm-svn: 101788
2010-04-19 17:16:40 +00:00
Dan Gohman 3457061a66 Fix this for std::vectors which don't have .data().
llvm-svn: 101785
2010-04-19 16:33:28 +00:00
Johnny Chen cbe3e1a3df ARM disassembler did not react to recent changes to the NEON instruction table.
VLD1q*_UPD and VST1q*_UPD have the ${dst:dregpair} operand now.

llvm-svn: 101784
2010-04-19 16:20:34 +00:00
Benjamin Kramer 3576b74bb9 Don't write into MemoryBuffers.
llvm-svn: 101783
2010-04-19 16:15:31 +00:00
Dan Gohman f656397cc0 Fix -Wcast-qual warnings.
llvm-svn: 101782
2010-04-19 15:55:10 +00:00
Dan Gohman a84dc0cc6e Revert 91528 and use a std::vector instead, fixing an abuse of std::string.
llvm-svn: 101781
2010-04-19 15:54:44 +00:00
Dan Gohman 60a52c5fcf Fix -Wcast-qual warnings.
llvm-svn: 101779
2010-04-19 15:42:05 +00:00
Dan Gohman 3bb1bcbe6d Add a few more ELF bits.
llvm-svn: 101778
2010-04-19 15:40:15 +00:00
Dan Gohman b204fd4308 Add a const.
llvm-svn: 101777
2010-04-19 15:39:27 +00:00
Dan Gohman 26e7d81df8 These functions don't need to access this.
llvm-svn: 101776
2010-04-19 15:38:38 +00:00
Anton Korobeynikov 7b056bfed0 Add missed part of prev. commit
llvm-svn: 101755
2010-04-18 20:41:42 +00:00
Anton Korobeynikov 7d62e33291 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
Chris Lattner d3db453d15 avoid temporary std::string in non posix_spawn path.
llvm-svn: 101723
2010-04-18 17:34:10 +00:00
Benjamin Kramer 5b4be748cb Eliminate temporary string.
llvm-svn: 101711
2010-04-18 09:19:41 +00:00
Benjamin Kramer 1360e9e270 Properly inherit the environment on darwin where environ is not available for shared libraries.
llvm-svn: 101710
2010-04-18 09:16:04 +00:00
Nick Lewycky 554a39889b This is horrible. Split the difference, and declare 'environ' on all non-Darwin
platforms to unbreak the darwin and linux builds. The BSD folks should feel
free to change the #if, if this breaks them.

llvm-svn: 101703
2010-04-18 07:07:48 +00:00
Nick Lewycky 320aa4a493 Revert r101701, Darwin doesn't have 'environ'. Go figure.
llvm-svn: 101702
2010-04-18 06:44:21 +00:00
Nick Lewycky 3fdf58800a Fix linux build. posix_spawn doesn't inherit the environment by default.
llvm-svn: 101701
2010-04-18 06:22:26 +00:00
Chris Lattner a50738abba make Program::Execute use posix_spawn on systems that support it,
as it is more efficient than fork/exec.

Thanks to Eric for adding the autoconf check.  It would be nice if
a cmake guru could add a cmake check for posix_spawn as well.

llvm-svn: 101693
2010-04-18 04:14:37 +00:00
Chris Lattner 1049e1ce1f reduce indentation
llvm-svn: 101692
2010-04-18 03:35:23 +00:00
Chris Lattner d9e22a8a61 unnest from namespace.
llvm-svn: 101691
2010-04-18 03:33:55 +00:00
Chris Lattner 3448f4e448 silence some -Wmissing-field-initializers warnings.
llvm-svn: 101690
2010-04-18 03:30:32 +00:00
Chris Lattner f58e8c0846 silence some unused-value warnings.
llvm-svn: 101689
2010-04-18 03:28:20 +00:00
Bill Wendling 268195e1d4 Don't rely upon the MCSymbol "isDefined" method to indicate if a label has been
emitted or not. The JIT doesn't set that. Look it up in the label location table
instead.

llvm-svn: 101686
2010-04-18 00:56:05 +00:00
Bill Wendling 47d742000b Formatting changes. No functionality change.
llvm-svn: 101685
2010-04-18 00:52:08 +00:00
Bill Wendling c4adfa3467 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
Nick Lewycky fbe8d2803d Fix declarations in a few more tests.
llvm-svn: 101676
2010-04-17 21:29:25 +00:00
Daniel Dunbar c459a0ff81 Revert "reject forward references to functions whose type don't match", because DJG told me to!
llvm-svn: 101675
2010-04-17 21:24:55 +00:00
Nick Lewycky d4c0f86a5e Fix intrinsic signature in this test.
llvm-svn: 101674
2010-04-17 21:12:55 +00:00
Chris Lattner 5a44950aae reject forward references to functions whose type don't match
up with the definition (and fix a broken testcase).  PR6491.

llvm-svn: 101670
2010-04-17 20:45:56 +00:00
Dale Johannesen 0b685eb778 Add comment (lost when reverting and reapplying 101503).
llvm-svn: 101664
2010-04-17 19:56:46 +00:00
Chris Lattner 2b3a32f7a0 doh, didn't mean to check in my hackaround lit sucking. :)
llvm-svn: 101663
2010-04-17 19:04:03 +00:00
Chris Lattner 0a8d91a816 fix PR6332, allowing an index of zero into a zero sized array
even if the element of the array has no size.

llvm-svn: 101662
2010-04-17 19:02:33 +00:00
Chris Lattner b927073f2e 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 926885c090 refactor .if handling code a bit.
llvm-svn: 101659
2010-04-17 18:14:27 +00:00
Chris Lattner 67e70971cc fix PR6858: a dangling pointer use bug which was caused
by switching CachedFunctionInfo from a std::map to a 
ValueMap (which is implemented in terms of a DenseMap).

DenseMap has different iterator invalidation semantics
than std::map.

This should hopefully fix the dragonegg builder.

llvm-svn: 101658
2010-04-17 17:57:56 +00:00
Chris Lattner cea19a475b a bunch of cleanups and tweaks, no functionality changes.
llvm-svn: 101657
2010-04-17 17:55:00 +00:00
Dan Gohman 7a0fde90f5 Fix more -Wcast-qual warnings.
llvm-svn: 101656
2010-04-17 17:44:03 +00:00
Dan Gohman 1f0f2142cc Fix -Wcast-qual warnings.
llvm-svn: 101655
2010-04-17 17:42:52 +00:00
Chris Lattner 05f34394d9 remove a dead variable, PR6856
llvm-svn: 101648
2010-04-17 17:28:00 +00:00
Chris Lattner 5495c8e415 testcase for r101538, patch by Nico Schmidt!
llvm-svn: 101642
2010-04-17 17:22:06 +00:00
Dan Gohman 53d4a08d2b Add const qualifiers to TargetLoweringObjectFile usage.
llvm-svn: 101640
2010-04-17 16:44:48 +00:00
Dan Gohman 88f7f6aeda Use const_cast instead of a C-style cast to cast away const.
llvm-svn: 101639
2010-04-17 16:43:55 +00:00
Dan Gohman 4fee6f3bdd Start function numbering at 0.
llvm-svn: 101638
2010-04-17 16:29:15 +00:00
Dan Gohman 8422e57baa Delete now-unnecessary const_casts.
llvm-svn: 101637
2010-04-17 15:32:28 +00:00
Dan Gohman 20e094c711 Use cast instead of dyn_cast when assuming success.
llvm-svn: 101636
2010-04-17 15:31:16 +00:00
Dan Gohman 21cea8ac2e 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
Dan Gohman 31ae586c74 Move per-function state out of TargetLowering subclasses and into
MachineFunctionInfo subclasses.

llvm-svn: 101634
2010-04-17 14:41:14 +00:00
Chandler Carruth ca0a53ac52 Name these stub files consistently with the SPU and PPC targets' conventions.
Also rename the classes appropriately. The CMake build already used these
names.

llvm-svn: 101631
2010-04-17 08:50:29 +00:00
Chris Lattner 7f5088e6de a bunch of ssse3 instructions are misencoded to think they have an
i8 field when they really do not.  This fixes rdar://7840289

llvm-svn: 101629
2010-04-17 07:38:24 +00:00
Chris Lattner 7c4f14bf90 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 5fdb57cc10 Postra machine licm must add registers defined by loop invariants to *all* of
the live-in sets of BBs in the loop. Otherwise later pass may end up using the
registers and override the invariant. rdar://7852937
No reasonablly sized test case possible.

llvm-svn: 101626
2010-04-17 07:07:11 +00:00
Nick Lewycky 04b8eec241 Refresh this documentation. Things have changed a bit in the mean time:
- LLVMgold.so --> libLLVMgold.so
 - the GCC LTO project is no longer 'upcoming'
 - document the plugin support for 'ar' and 'nm'

llvm-svn: 101624
2010-04-17 07:00:24 +00:00
Evan Cheng 4f3aba431e Fix codegen passes. -disable-ssc shouldn't disable postra machine licm.
llvm-svn: 101622
2010-04-17 06:47:47 +00:00
Evan Cheng f1bd5fcdb4 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
Evan Cheng 829c300ce0 Another 80 col violation.
llvm-svn: 101620
2010-04-17 06:12:32 +00:00
Bob Wilson 59b70eacad Revise my previous change to ExpandBIT_CONVERT. I hadn't realized that this
may be called when either the source or destination type is i64, and my
change also hadn't fixed the most obvious problem -- assuming that i64 will
only be bitconverted to f64, ignoring the various vector types.
Radar 7873160.

llvm-svn: 101615
2010-04-17 05:30:19 +00:00
Evan Cheng 3af19e80c9 Add nounwind.
llvm-svn: 101613
2010-04-17 03:43:36 +00:00
Bob Wilson ca51425d94 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
Bob Wilson 4e5eb5ae1b As a temporary workaround for post-RA not handling DebugValue instructions,
just remove them all.  Radar 7873207 (working around the root problem of
Radar 7759363).

llvm-svn: 101604
2010-04-17 00:49:11 +00:00
Jakob Stoklund Olesen 71336f213b Revert "Use a simpler data structure to calculate the least recently used register in RegAllocLocal."
This reverts commit 101392. It broke a buildbot.

llvm-svn: 101595
2010-04-17 00:38:36 +00:00
Dale Johannesen 2543e303e1 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
Chris Lattner dddbcba270 disable r101565: an assert is getting triggered. More lurking badness no doubt.
llvm-svn: 101583
2010-04-17 00:05:36 +00:00
Chris Lattner cfc921cd2a add a note
llvm-svn: 101581
2010-04-16 23:52:30 +00:00
Eric Christopher 7258dcd77f 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 12563b3495 Add support to emit dwarf ranges.
llvm-svn: 101575
2010-04-16 23:33:45 +00:00
Jakob Stoklund Olesen ae372e2ce0 Use a simpler data structure to calculate the least recently used register in RegAllocLocal.
This makes the local register allocator about 20% faster.

llvm-svn: 101574
2010-04-16 23:32:37 +00:00
Johnny Chen c275414575 Cast to (uint64_t) instead of relying on the "ul" suffix.
llvm-svn: 101573
2010-04-16 23:30:28 +00:00
Dan Gohman 37df662b1c Add a getSelectionDAGInfo member to TargetMachine.
llvm-svn: 101567
2010-04-16 23:09:10 +00:00
Chris Lattner 434c053439 update docs for api change.
llvm-svn: 101566
2010-04-16 23:07:44 +00:00
Chris Lattner de023a3c1d 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
Dan Gohman 9becdddc49 Add skeleton target-specific SelectionDAGInfo files.
llvm-svn: 101564
2010-04-16 23:04:22 +00:00
Johnny Chen ed9bee150b Fixed logic error. Should check Builder for validity before calling SetSession
on it.

llvm-svn: 101563
2010-04-16 23:02:25 +00:00
Chris Lattner 5518b81a98 move ReplaceNode out of line, rename scc_iterator::fini -> isAtEnd().
No functionality change.

llvm-svn: 101562
2010-04-16 22:59:24 +00:00
Dan Gohman fe051a525f Regenerate configure script.
llvm-svn: 101561
2010-04-16 22:59:06 +00:00
Dan Gohman 91f8ad7bd3 Add an autoconf check for -retain-symbols-file and conditionalize
use of that option with it. This eliminates an imprecise "Linux"
test, and should help support old versions of gold.

llvm-svn: 101560
2010-04-16 22:58:15 +00:00
Johnny Chen 034e0b1e68 Minor change to make the test case comply with Vd<0> == '0' when Q == '1'.
llvm-svn: 101559
2010-04-16 22:48:31 +00:00
Chris Lattner 4422d31b84 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
Johnny Chen b90b6f1a35 Fixed a bug in DisassembleN1RegModImmFrm() where a break stmt was missing for a
case.  Also, the 0xFF hex literal involved in the shift for ESize64 should be
suffixed "ul" to preserve the shift result.

Implemented printHex*ImmOperand() by copying from ARMAsmPrinter.cpp and added a
test case for DisassembleN1RegModImmFrm()/printHex64ImmOperand().

llvm-svn: 101557
2010-04-16 22:40:20 +00:00
Evan Cheng f037f87bde (i32 sext_in_reg (i32 aext (i16 x)), i16) -> (i32 sext x). No known test case until -promote-16bit is enabled.
llvm-svn: 101551
2010-04-16 22:26:19 +00:00
Chris Lattner d43a12df56 tidy up
llvm-svn: 101548
2010-04-16 21:57:10 +00:00
Chris Lattner 6d1208fd2b move PrintCallGraphPass out of the middle of CGPassManager.
llvm-svn: 101543
2010-04-16 21:43:55 +00:00
Chris Lattner d4758fc393 add a missing break back, patch by Nico Schmidt!
llvm-svn: 101538
2010-04-16 21:15:15 +00:00
Dan Gohman c4759a5b97 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 4d273f4519 Commit this, which should have accompanied 101531.
llvm-svn: 101532
2010-04-16 20:22:43 +00:00
Dan Gohman 148c69a3f6 Eliminate an unnecessary SelectionDAG dependency in getOptimalMemOpType.
llvm-svn: 101531
2010-04-16 20:11:05 +00:00
Dan Gohman 9dbe61456a Fix this code to avoid implicit assumptions about the length of the array.
llvm-svn: 101530
2010-04-16 20:08:45 +00:00
Johnny Chen 2b7aba10c2 In the same spirit of r101524, which removed the assert() from printAddrMode2OffsetOperand(),
this patch removes the assert() from printAddrMode3OffsetOperand() and adds a test case.

llvm-svn: 101529
2010-04-16 19:57:21 +00:00
Dan Gohman 0591a050ff Revert 101520, which depended on 101503, which was reverted.
llvm-svn: 101528
2010-04-16 19:36:41 +00:00
Johnny Chen 807e1748fc Multiclass LdStCop was using pre-UAL syntax LDC<c>L for the L fragment. Changed
to the UAL syntax of LDCL<c>, instead.

Add a test case for this change which also tests the removal of assert() from
printAddrMode2OffsetOperand().

llvm-svn: 101527
2010-04-16 19:33:23 +00:00
Duncan Sands 7fc8123b37 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
Johnny Chen 88599a42bb Remove the assert() from printAddrMode2OffsetOperand(). "#0 and #-0" are
considered legal instructions.

Refs: A8.6.51 LDC, LDC2 (immediate) -- page A8-107, A8.6.58 LDR (immediate, ARM)
-- page A8-121, and A8.6.194 STR (immediate, ARM) -- page A8-395.

llvm-svn: 101524
2010-04-16 19:10:52 +00:00
Dan Gohman 076a3278a1 Trim a #include.
llvm-svn: 101520
2010-04-16 18:45:11 +00:00
Dan Gohman c1ce91603c Revert r101455, which fails on the llvm-arm-linux buildbot.
llvm-svn: 101515
2010-04-16 18:37:31 +00:00
Dale Johannesen 3104bf1618 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
Evan Cheng 954bd598dd 80 col.
llvm-svn: 101501
2010-04-16 17:58:41 +00:00
Evan Cheng d6b0a7c075 80 col.
llvm-svn: 101500
2010-04-16 17:57:59 +00:00
Dan Gohman 3a7ee8eead Avoid creating virtual registers for unused values.
llvm-svn: 101480
2010-04-16 17:15:02 +00:00
Dan Gohman 5664b9f1a9 Fix an assertion string.
llvm-svn: 101478
2010-04-16 16:55:18 +00:00
Dan Gohman 4572a9f479 Fix a comment.
llvm-svn: 101477
2010-04-16 16:52:37 +00:00
Dan Gohman f13f69f296 Disable inlining of recursive calls. It can complicate tailcallelim and
dependent analyses, and increase code size, so doing it profitably would
require more complex heuristics.

llvm-svn: 101471
2010-04-16 16:01:18 +00:00
Dan Gohman 99e5327bfd Refine the detection of seemingly infinitely recursive calls where the
callee is expected to be expanded to something else by codegen, so that
normal infinitely recursive calls are still transformed.

llvm-svn: 101468
2010-04-16 15:57:50 +00:00
Gabor Greif f375520f7b 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 b3862ecd48 Make callIsSmall accessible as a utility function.
llvm-svn: 101463
2010-04-16 15:14:50 +00:00
Dan Gohman 12293815de Fix SCEVCommutativeExpr::print to be robust in the case of improper
expression canonicalization. Its job is to print what's there, not to
make judgements about it.

llvm-svn: 101461
2010-04-16 15:03:25 +00:00
Dan Gohman aa4d9ea465 Delete a blank line.
llvm-svn: 101459
2010-04-16 13:32:55 +00:00
Bill Wendling ae4541d758 Add JIT exception handling test.
llvm-svn: 101455
2010-04-16 09:04:28 +00:00
Bill Wendling 929f3c0927 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
Chris Lattner 408f79197c completed my pass over all 6+ months of commits, next step, format and make comprehendable.
llvm-svn: 101449
2010-04-16 06:20:22 +00:00
Evan Cheng af56facacd 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
Evan Cheng 3da64f7672 Use getAL() rather than a major constant.
llvm-svn: 101446
2010-04-16 05:46:06 +00:00
Eric Christopher dea3bda860 Add a check for posix_spawn.
Regenerate configure and other autoconf files.

llvm-svn: 101444
2010-04-16 05:14:21 +00:00
Dan Gohman 5563473062 Refine further the scope where the global DebugLoc value is active.
llvm-svn: 101443
2010-04-16 05:06:56 +00:00
Nick Lewycky bb2ec7de9c Revert r64616 which worked around http://gcc.gnu.org/PR42757 , we just didn't
know it at the time.

llvm-svn: 101439
2010-04-16 04:32:20 +00:00
Eric Christopher 206d7ce582 Silence an unused variable warning.
llvm-svn: 101438
2010-04-16 04:02:04 +00:00
Chris Lattner bd2d9430d6 fix comment noticed by Bob
llvm-svn: 101437
2010-04-16 02:32:17 +00:00
Gabor Greif 403e9694f9 back out r101423 and r101397, they break llvm-gcc self-host on darwin10
llvm-svn: 101434
2010-04-16 01:16:20 +00:00
Chris Lattner 393e08536d move comment.
llvm-svn: 101433
2010-04-16 01:05:52 +00:00
Chris Lattner 1146d326a7 fix PR6832: we were using the alignment of a pointer when we
wanted the alignment of the pointee.

llvm-svn: 101432
2010-04-16 01:05:38 +00:00
Dan Gohman 0977358509 Create an exports file, so that the plugin only exports the onload symbol.
llvm-svn: 101431
2010-04-16 00:43:25 +00:00
Dan Gohman ebb4ae0912 Make things static that don't need to be referenced from outside the file.
llvm-svn: 101430
2010-04-16 00:42:57 +00:00
Chris Lattner b73552908e improve comments.
llvm-svn: 101429
2010-04-16 00:38:19 +00:00
Chris Lattner 78d7dbbc30 pull all the ConvertToScalarInfo code together into one
place.

llvm-svn: 101427
2010-04-16 00:24:57 +00:00
Chris Lattner d69c3ee958 more refactoring: suck some stuff out of SRoA into
ConvertToScalarInfo.

llvm-svn: 101425
2010-04-16 00:20:00 +00:00
Gabor Greif 6af0ad846e shift intrinsic operand
llvm-svn: 101423
2010-04-16 00:06:45 +00:00
Chris Lattner 9ef4eae6e6 introduce a new ConvertToScalarInfo struct to simplify
CanConvertToScalar/MergeInType.  Eliminate a pointless
LLVMContext argument to MergeInType.

llvm-svn: 101422
2010-04-15 23:50:26 +00:00
Jakob Stoklund Olesen cdc3df4888 Avoid sinking machine instructions into a loop.
MachineLoopInfo is already available when MachineSinking runs, so the check is
free.

There is no test case because it would require a critical edge into a loop, and
CodeGenPrepare splits those. This check is just to be extra careful.

llvm-svn: 101420
2010-04-15 23:41:02 +00:00
Johnny Chen 1d3ee607b3 Added another test case for am3offset operand, testing Rn, #+/-imm8.
Previous checkin tested Rn, #+/-Rm.

llvm-svn: 101418
2010-04-15 23:23:40 +00:00
Jakob Stoklund Olesen dc6d42dbf8 Add test case for machine-sink on critical edges
llvm-svn: 101416
2010-04-15 23:19:16 +00:00
Johnny Chen acbc06c2a3 Fixed a bug in ARM disassembly where LDRSBT should have am3offset operand, not
am2offset.  Modified the instruction table entry and added a new test case.

llvm-svn: 101415
2010-04-15 23:12:47 +00:00
Dan Gohman ff9ecb2824 Make the export files absolute paths, and change Makefile.rules
to expect them this way, to fix srcdir!=objdir builds.

llvm-svn: 101414
2010-04-15 23:08:00 +00:00
Dan Gohman 1639265421 Add a dependency on the .dir file to make sure that the directory
is created before the native exports file is built in a parallel build.

llvm-svn: 101413
2010-04-15 22:46:27 +00:00
Evan Cheng f7f97b4bbd Use default lowering of DYNAMIC_STACKALLOC. As far as I can tell, ARM isle is doing the right thing and codegen looks correct for both Thumb and Thumb2.
llvm-svn: 101410
2010-04-15 22:20:34 +00:00
Chris Lattner 9c1172d848 tidy interface to isOnlyCopiedFromConstantGlobal
llvm-svn: 101405
2010-04-15 21:59:20 +00:00
Daniel Dunbar 73fa324609 Don't use absolute path for EXPORTED_SYMBOL_FILE, this breaks under the new
system.

llvm-svn: 101404
2010-04-15 21:57:43 +00:00
Dan Gohman 473a53f7b1 Generalize the EXPORTED_SYMBOL_FILE concept in the Makefiles to work with
native linking export files, including running sed to prepend underscores
on darwin, and make use of it in libLTO and libEnhancedDisassembly.

Remove the leading underscores from library export files so that they
work with the new EXPORTED_SYMBOL_FILE support.

llvm-svn: 101399
2010-04-15 20:54:25 +00:00
Gabor Greif 33ae80bff7 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
Duncan Sands 626b02470b Pointed out by housel on #llvm.
llvm-svn: 101395
2010-04-15 20:35:54 +00:00
Jakob Stoklund Olesen b642a27525 Fix PR6847. RegScavenger should ignore DebugValues.
llvm-svn: 101392
2010-04-15 20:28:39 +00:00
Nicolas Geoffray 19cd1d84ad Make sure the initialization of a GC root is after its definition.
llvm-svn: 101388
2010-04-15 19:53:35 +00:00
Anton Korobeynikov 839cdaa70a Revert r100896 and around - this breaks the only mingw32 buildbot we have.
llvm-svn: 101387
2010-04-15 19:51:42 +00:00
Gabor Greif b36d07cb93 prune includes
llvm-svn: 101385
2010-04-15 19:44:21 +00:00
Evan Cheng 1ba1428577 ARM SelectDYN_ALLOC should emit a copy from SP rather than referencing SP directly. In cases where there are two dyn_alloc in the same BB it would have caused the old SP value to be reused and badness ensues. rdar://7493908
llvm is generating poor code for dynamic alloca, I'll fix that later.

llvm-svn: 101383
2010-04-15 18:42:28 +00:00
Johnny Chen 4230e35879 DEBUG() print out "Unknown format" msg.
llvm-svn: 101382
2010-04-15 18:13:51 +00:00
Dan Gohman 48a189280e ReuseFrameIndexVals is used in multiple files, so it can't be static.
llvm-svn: 101379
2010-04-15 17:34:58 +00:00
Dan Gohman 2085719a98 EnablePPC64RS and EnablePPC32RS are used in multiple files, so they
can't be static.

llvm-svn: 101377
2010-04-15 17:20:57 +00:00
Dan Gohman b29cda9b3c Fix a bunch of namespace polution.
llvm-svn: 101376
2010-04-15 17:08:50 +00:00
Dan Gohman 345356ee9a Fix namespace polution.
llvm-svn: 101375
2010-04-15 16:23:27 +00:00
Dan Gohman 4e3c1139a2 Make getPredecessorWithUniqueSuccessorForBB return the unique successor
in addition to the predecessor.

llvm-svn: 101374
2010-04-15 16:19:08 +00:00
Gabor Greif ff3c8b7eaf typos
llvm-svn: 101371
2010-04-15 15:14:46 +00:00
Gabor Greif 9fd00c7d25 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
Benjamin Kramer a944a9a902 Simplify ".bc" detection.
llvm-svn: 101365
2010-04-15 11:33:14 +00:00
Gabor Greif aafd209632 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
Chris Lattner 3245afdf05 enhance the load/store narrowing optimization to handle a
tokenfactor in between the load/store.  This allows us to 
optimize test7 into:

_test7:                                 ## @test7
## BB#0:                                ## %entry
	movl	(%rdx), %eax
                                        ## kill: SIL<def> ESI<kill>
	movb	%sil, 5(%rdi)
	ret

instead of:

_test7:                                 ## @test7
## BB#0:                                ## %entry
	movl	4(%esp), %ecx
	movl	$-65281, %eax           ## imm = 0xFFFFFFFFFFFF00FF
	andl	4(%ecx), %eax
	movzbl	8(%esp), %edx
	shll	$8, %edx
	addl	%eax, %edx
	movl	12(%esp), %eax
	movl	(%eax), %eax
	movl	%edx, 4(%ecx)
	ret

llvm-svn: 101355
2010-04-15 06:10:49 +00:00
Chris Lattner 6ebd8674eb teach codegen to turn trunc(zextload) into load when possible.
This doesn't occur much at all, it only seems to formed in the case
when the trunc optimization kicks in due to phase ordering.  In that
case it is saves a few bytes on x86-32.

llvm-svn: 101350
2010-04-15 05:40:59 +00:00
Chris Lattner f9b2e3c68a add a simple dag combine to replace trivial shl+lshr with
and.  This happens with the store->load narrowing stuff.

llvm-svn: 101348
2010-04-15 05:28:43 +00:00
Chris Lattner 4041ab6e00 Implement rdar://7860110 (also in target/readme.txt) narrowing
a load/or/and/store sequence into a narrower store when it is
safe.  Daniel tells me that clang will start producing this sort
of thing with bitfields, and this does  trigger a few dozen times
on 176.gcc produced by llvm-gcc even now.

This compiles code like CodeGen/X86/2009-05-28-DAGCombineCrash.ll 
into:

        movl    %eax, 36(%rdi)

instead of:

        movl    $4294967295, %eax       ## imm = 0xFFFFFFFF
        andq    32(%rdi), %rax
        shlq    $32, %rcx
        addq    %rax, %rcx
        movq    %rcx, 32(%rdi)

and each of the testcases into a single store.  Each of them used
to compile into craziness like this:

_test4:
	movl	$65535, %eax            ## imm = 0xFFFF
	andl	(%rdi), %eax
	shll	$16, %esi
	addl	%eax, %esi
	movl	%esi, (%rdi)
	ret

llvm-svn: 101343
2010-04-15 04:48:01 +00:00
Dan Gohman 913c998703 Add more const qualifiers for LLVM IR pointers in CodeGen.
llvm-svn: 101342
2010-04-15 04:33:49 +00:00
Chris Lattner 60bbb8c356 further tweak this to do something useful.
llvm-svn: 101341
2010-04-15 04:31:42 +00:00
Chris Lattner 9ebaf531ab remove undef control flow.
llvm-svn: 101340
2010-04-15 04:30:19 +00:00
Daniel Dunbar f43481df34 Remove unnecessary uses of <iostream>.
llvm-svn: 101338
2010-04-15 03:47:24 +00:00
Daniel Dunbar 5f372e2f13 tests: MC/Disassembler tests depend on ARM support being compiler in.
llvm-svn: 101337
2010-04-15 03:47:20 +00:00
Chris Lattner 2df4fa5bc8 fix a crash on "lli ex" or any other file whose name is exactly two
characters long.

llvm-svn: 101336
2010-04-15 03:32:19 +00:00
Anders Carlsson 47bccf7f28 Fix build.
llvm-svn: 101335
2010-04-15 03:11:28 +00:00
Dan Gohman bcaf681cde Add const qualifiers to CodeGen's use of LLVM IR constructs.
llvm-svn: 101334
2010-04-15 01:51:59 +00:00
Eric Christopher eabc9623da Allow lowering for palignr instructions for mmx sized vectors. Add
patterns to handle the lowering.

llvm-svn: 101331
2010-04-15 01:40:20 +00:00
Evan Cheng 87b4f7c1aa More 80 violations.
llvm-svn: 101330
2010-04-15 01:25:27 +00:00
Johnny Chen 0175ec1263 Wrap the error msgs in DEBUG() macro so that they won't appear in NDEBUG build.
llvm-svn: 101329
2010-04-15 01:20:56 +00:00
Evan Cheng 8442ef6f89 80 col violations.
llvm-svn: 101325
2010-04-15 01:01:55 +00:00
Devang Patel 3d6c40c616 Add comment.
llvm-svn: 101317
2010-04-15 00:02:49 +00:00
Devang Patel 97bdf94da3 There is no need to track compile unit offsets if there is only one compile unit.
llvm-svn: 101315
2010-04-14 23:56:24 +00:00
Devang Patel b08ccb62d5 Remove dead code.
llvm-svn: 101314
2010-04-14 23:54:13 +00:00
Tobias Grosser de1a37b872 IPO needs ScalarOpts and InstCombine in its libs
The commit "Adding IPSCCP and Internalize passes to the C-bindings" introduced
new dependencies for IPO. Add these to the CMAKE build as otherwise the
BUILD_SHARED_LIBS=1 build fails.

llvm-svn: 101313
2010-04-14 23:42:23 +00:00
Johnny Chen 82c50b11fa Fixed another assert exposed by fuzzing. Now, the DisassembleVFPLdStMulFrm()
function checks whether we have a valid submode for VLDM/VSTM (must be either
"ia" or "db") before calling ARM_AM::getAM5Opc(AMSubMode, unsigned char).

llvm-svn: 101306
2010-04-14 22:37:17 +00:00
Jim Grosbach 32bb362655 Add -arm-long-calls option to force calls to be indirect. This makes the
kernel linker happier when dealing with kexts.

Radar 7805069

llvm-svn: 101303
2010-04-14 22:28:31 +00:00
Dan Gohman 20c87b1adf Fix TrackingVH to handle const Value subclasses.
llvm-svn: 101300
2010-04-14 22:24:25 +00:00
Dan Gohman 849833aea3 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 0b4df0425f Constify GetConstantStringInfo.
llvm-svn: 101298
2010-04-14 22:20:45 +00:00
Nicolas Geoffray 99bfbca6ec Don't use DILocation when processing a DebugLoc.
llvm-svn: 101294
2010-04-14 22:06:37 +00:00
Johnny Chen 9aaaf4d5fa For t2BFI disassembly, apply the same error checking as in r101205.
Change the error msg to read "Encoding error: msb < lsb".

llvm-svn: 101293
2010-04-14 22:04:45 +00:00
Dan Gohman 7a3dff329f 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
Johnny Chen 7637827064 Fixed another assert exposed by fuzzing. The utility function getRegisterEnum()
was asserting because the (RegClass, RegNum) combination doesn't make sense from
an encoding point of view.

Since getRegisterEnum() is used all over the place, to change the code to check
for encoding error after each call would not only bloat the code, but also make
it less readable.  An Err flag is added to the ARMBasicMCBuilder where a client
can set a non-zero value to indicate some kind of error condition while building
up the MCInst.  ARMBasicMCBuilder::BuildIt() checks this flag and returns false
if a non-zero value is detected.

llvm-svn: 101290
2010-04-14 21:03:13 +00:00
Jakob Stoklund Olesen 938f2ae310 Remove unneeded types from test.
llvm-svn: 101286
2010-04-14 20:56:09 +00:00
Evan Cheng 21b588b678 - Code clean up to reduce indentation.
- TryToOptimizeStoreOfMallocToGlobal should check if TargetData is available and bail out if it is not. The transformations being done requires TD.

llvm-svn: 101285
2010-04-14 20:52:55 +00:00
Dan Gohman 33c46fde07 Use FunTy instead of hard-coding Function.
llvm-svn: 101283
2010-04-14 20:49:44 +00:00
Bob Wilson c05b887c84 Don't custom lower bit converts to ARM VMOVDRRD or VMOVDRR when the operand
does not have a legal type.  The legalizer does not know how to handle those
nodes.  Radar 7854640.

llvm-svn: 101282
2010-04-14 20:45:23 +00:00
Dan Gohman 7a633cd750 Oops, make these public.
llvm-svn: 101280
2010-04-14 20:31:28 +00:00
Dan Gohman 0ebddbe1d9 Move getType() and getCaller() into CallSiteBase so that
ImmutableCallSite can use them too.

llvm-svn: 101279
2010-04-14 20:28:44 +00:00
Evan Cheng 9e100384cb Trim tests and convert to FileCheck.
llvm-svn: 101277
2010-04-14 20:22:17 +00:00
Dan Gohman c87b74d913 Delete unneeeded arguments.
llvm-svn: 101276
2010-04-14 20:17:22 +00:00
Dan Gohman a3918ecdf5 Delete unused arguments.
llvm-svn: 101275
2010-04-14 20:05:00 +00:00
Dan Gohman 7deb447781 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 c2c08d19b8 Reset the debug location even if the instruction was a terminator.
llvm-svn: 101272
2010-04-14 19:30:02 +00:00
Dan Gohman a0e9a7285e Fix a missing #include.
llvm-svn: 101270
2010-04-14 18:57:18 +00:00
Dan Gohman cacd4f2401 Refine #includes.
llvm-svn: 101269
2010-04-14 18:49:17 +00:00
Dan Gohman d313a05a16 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 8ebcbe949a Pull utility routines with no SelectionDAG dependence out of
SelectionDAGBuilder. FunctionLoweringInfo isn't an ideal place for
them to live, but it's better than SelectionDAGBuilder for now.

llvm-svn: 101267
2010-04-14 18:31:02 +00:00
Dan Gohman f5cca35750 Fix typos in comments.
llvm-svn: 101266
2010-04-14 18:24:06 +00:00
Gabor Greif fefdd42644 performance: cache the dereferenced use_iterator
llvm-svn: 101265
2010-04-14 18:13:29 +00:00
Dan Gohman fea9ba18ff Delete an obsolete comment.
llvm-svn: 101264
2010-04-14 17:40:25 +00:00
Dan Gohman 3215eae4a3 Delete an unused function.
llvm-svn: 101263
2010-04-14 17:22:02 +00:00
Dan Gohman 094fc7b09e Clear the FunctionLoweringInfo object before doing other things that
don't need it.

llvm-svn: 101262
2010-04-14 17:13:16 +00:00
Dan Gohman ad0b3ea3cc Move this assert out of SelectionDAGISel into FunctionLoweringInfo, and
drop the redundant #ifndef NDEBUG.

llvm-svn: 101261
2010-04-14 17:11:23 +00:00
Dan Gohman 0f405c8d73 Add a comment.
llvm-svn: 101260
2010-04-14 17:09:37 +00:00
Dan Gohman 2ca8fb229c Move the code for initialing the entry block livein set out of
SelectionDAGISel.

llvm-svn: 101258
2010-04-14 17:05:00 +00:00
Dan Gohman 4bfb437ec9 Reorgnaize this code to be more tidy and readable.
llvm-svn: 101256
2010-04-14 17:02:07 +00:00
Dan Gohman 1939b5f130 Trim #includes.
llvm-svn: 101255
2010-04-14 16:54:39 +00:00
Dan Gohman 2b79ee8bc8 Move the code for emitting livein copies out of SelectionDAGISel.
llvm-svn: 101254
2010-04-14 16:51:49 +00:00
Gabor Greif c08e5df836 performance: cache the dereferenced use_iterator
llvm-svn: 101253
2010-04-14 16:48:56 +00:00
Dan Gohman 69e8e322d9 Sink landing-pad marking code out of
SelectionDAGISel::runOnMachineFunction into FunctionLowering.

llvm-svn: 101252
2010-04-14 16:32:56 +00:00
Dan Gohman f57117d166 It's not necessary to recompute EB here.
llvm-svn: 101251
2010-04-14 16:30:40 +00:00
Gabor Greif a49686fa3e performance: cache the dereferenced use_iterator
llvm-svn: 101250
2010-04-14 16:13:56 +00:00
Dan Gohman 65de3d140d Add a comment.
llvm-svn: 101248
2010-04-14 16:08:56 +00:00
Dan Gohman 4083e9afaf Fix whitespace, comments.
llvm-svn: 101247
2010-04-14 15:59:02 +00:00
Dan Gohman 8a616ea9a9 Add explicit keywords.
llvm-svn: 101246
2010-04-14 15:50:02 +00:00
Dan Gohman 7947f03a07 Use C++, not C++-standard-library-internals-ese.
llvm-svn: 101245
2010-04-14 15:41:50 +00:00
Dan Gohman f1f0c9ded8 Make SuccIterator's private parts private too.
llvm-svn: 101244
2010-04-14 15:38:15 +00:00
Dan Gohman 6177386b05 Make helper utility members private.
llvm-svn: 101243
2010-04-14 15:33:04 +00:00
Benjamin Kramer a050255103 EDis: Don't include inttypes.h. We support compilers which don't provide it. It was unused anyways.
llvm-svn: 101241
2010-04-14 13:56:38 +00:00
Nick Lewycky cc924c7483 Enable RTTI again. While this works fine for LLVM, it creates an ABI
incompatibility with some clients covered by the buildbots, such as llvm-gcc.

llvm-svn: 101237
2010-04-14 05:51:59 +00:00
Nick Lewycky 80ee5e299c Don't forget cmake!
llvm-svn: 101234
2010-04-14 05:35:20 +00:00
Nick Lewycky 81f8f03dc9 Turn off RTTI for VMCore. Yay!
llvm-svn: 101233
2010-04-14 05:30:13 +00:00
Nick Lewycky 163a743b51 I don't know how, but I managed to goof the revert. Remove function that should
have been removed in r101231.

llvm-svn: 101232
2010-04-14 05:03:50 +00:00
Nick Lewycky ca615eb0d6 Revert r101213.
llvm-svn: 101231
2010-04-14 04:51:58 +00:00
Nick Lewycky c37b45bd2d Remove accidentally committed cruft.
llvm-svn: 101230
2010-04-14 04:46:11 +00:00
Nick Lewycky 7cd1aa31ac Fix 80 column ruler.
llvm-svn: 101229
2010-04-14 04:40:35 +00:00
Nick Lewycky 7c167954e2 Bugpoint no longer uses exceptions.
llvm-svn: 101228
2010-04-14 04:40:31 +00:00
Chris Lattner 6b55cb9cd8 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
Nick Lewycky 087d59cf25 Remove tab.
llvm-svn: 101223
2010-04-14 04:19:05 +00:00
Nick Lewycky 8408f33deb Commit testcase for r101213.
llvm-svn: 101214
2010-04-14 03:46:42 +00:00
Nick Lewycky 3cdae269f0 While DAE can't modify the function signature of an externally visible function,
it can check whether the visible direct callers are passing in parameters to
dead arguments and replace those with undef.

This reinstates r94322 with bugs fixed.

llvm-svn: 101213
2010-04-14 03:38:11 +00:00
Dan Gohman 5f40d34958 Generalize this code to handle Instructions in addition to ConstantExprs.
llvm-svn: 101210
2010-04-14 02:33:23 +00:00
Dan Gohman 9162fb07be Reorder the methods of this class to be a little more organized.
llvm-svn: 101206
2010-04-14 02:09:45 +00:00
Johnny Chen 48bbf4910e Fixed another assert exposed by fuzzing. Now, when an encoding error occurs
involing getBFCInvMask() where lsb <= msb does not hold true, the disassembler
just returns false, instead of assert, to indicate disassembly error.

llvm-svn: 101205
2010-04-14 02:05:29 +00:00
Devang Patel b7eadda495 Clear MachineInstr->MCSymbol maps at the end of a function.
llvm-svn: 101202
2010-04-14 01:18:28 +00:00
Johnny Chen 82c3cadad6 Fixed an assert() exposed by fuzzing. Now, instead of assert when an invalid
instruction encoding is encountered, we just return a NULL ARMBasicMCBuilder
instance and the client just returns false to indicate disassembly error.

llvm-svn: 101201
2010-04-14 01:17:37 +00:00
Daniel Dunbar 780792dc86 Fix -Asserts warnings.
llvm-svn: 101191
2010-04-13 23:34:11 +00:00
Devang Patel c48b976c08 XFAIL this test for powerpc.
This test relies on iSel lowering dbg_declare intrinsic when CodeGen::OptLevel is None. On PPC side, CodeGen::OptLevel stays to default when -O0 is used on the command line.

llvm-svn: 101190
2010-04-13 23:23:09 +00:00
Douglas Gregor 9078f954bf Unbreak CMake build by improving the EnhancedDisassembly makefile a
bit (we're not trying to build a shared library yet) and generating
the X86GenEDInfo.inc and ARMGenEDInfo.inc files as necessary.

llvm-svn: 101188
2010-04-13 22:47:43 +00:00
Evan Cheng 87585d72a5 Fast path implicit_def check.
llvm-svn: 101183
2010-04-13 22:13:34 +00:00
Evan Cheng 6c35893aa6 Add test for post-ra machine licm.
llvm-svn: 101182
2010-04-13 22:10:03 +00:00
Bob Wilson 699bdf7adf Handle a v2f64 formal parameter that is split between registers and memory
such that the entire second half is in memory.  Radar 7855014.

llvm-svn: 101181
2010-04-13 22:03:22 +00:00
Sean Callanan 9b6772c43a Quick fix for build errors caused by undefined
NULL.

llvm-svn: 101180
2010-04-13 21:36:35 +00:00
Sean Callanan 814e69b171 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
Ted Kremenek 8af6f765f5 Add CMake support for 'edis'.
llvm-svn: 101177
2010-04-13 20:52:50 +00:00
Johnny Chen 44d7d183fa Changed getSOImmValRotate()'s hunt retry logic to ignore the low order 6 bits,
instead of 7, because we are only looking for even rotate amount.

llvm-svn: 101172
2010-04-13 20:35:16 +00:00
Devang Patel 12d150ea43 Do not include types without any definition in pubtypes list.
llvm-svn: 101171
2010-04-13 20:35:04 +00:00
Evan Cheng cce672c172 Avoid variable shadowing.
llvm-svn: 101170
2010-04-13 20:25:29 +00:00
Evan Cheng 89e74792b6 Expand postra machine licm's capability a little more. If an instruction's register operands are all loop invariants, then it's safe to hoist it.
llvm-svn: 101167
2010-04-13 20:21:05 +00:00
Jakob Stoklund Olesen 20b71e28cc Teach MachineSinking to handle easy critical edges.
Sometimes it is desirable to sink instructions along a critical edge:

x = ...
if (a && b) ...
else use(x);

The 'a && b' condition creates a critical edge to the else block, but we still
want to sink the computation of x into the block. The else block is dominated by
the parent block, so we are not pushing instructions into new code paths.

llvm-svn: 101165
2010-04-13 19:06:14 +00:00
Evan Cheng 4d89dd8353 Fix test on non-x86 hosts.
llvm-svn: 101163
2010-04-13 18:54:04 +00:00
Evan Cheng 4ca4bc6f95 Re-apply 101075 and fix it properly. Just reuse the debug info of the branch instruction being optimized. There is no need to --I which can deref off start of the BB.
llvm-svn: 101162
2010-04-13 18:50:27 +00:00
Chris Lattner 6b2b064d7a Make the disassembler respect the assembler dialect when printing instructions,
patch by Marius Wachtler!

llvm-svn: 101160
2010-04-13 18:41:17 +00:00
Eric Christopher d67f66dc0c Temporarily revert r101075, it's causing invalid iterator assertions
in a nightly tester.

llvm-svn: 101158
2010-04-13 18:37:58 +00:00
Evan Cheng 0a2aff2d12 Teach postra machine licm to hoist more obvious invariants, e.g. instructions with no source operands.
llvm-svn: 101154
2010-04-13 18:16:00 +00:00
Dan Gohman 8a2dae57e2 Add a few comments.
llvm-svn: 101148
2010-04-13 17:07:06 +00:00
Dan Gohman 9d2d053e11 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 dcacef3188 Rename MachineFrameInfo variables to MFI, for consistency with
the rest of CodeGen.

llvm-svn: 101146
2010-04-13 16:56:45 +00:00
Dan Gohman 6b1b1e4358 Move MachineRegisterInfo's isLiveIn and isLiveOut out of line.
llvm-svn: 101145
2010-04-13 16:55:37 +00:00
Dan Gohman a1cf9fef70 Use MachineBasicBlock::isLiveIn.
llvm-svn: 101144
2010-04-13 16:53:51 +00:00
Dan Gohman 39305067ad Delete an unused member variable.
llvm-svn: 101143
2010-04-13 16:51:39 +00:00
Dan Gohman 7ef0dc2163 Teach ScalarEvolution to simplify smax and umax when it can prove
that one operand is always greater than another.

llvm-svn: 101142
2010-04-13 16:51:03 +00:00
Dan Gohman fe4b29180b Minor code micro-optimizations.
llvm-svn: 101141
2010-04-13 16:49:23 +00:00
Eric Christopher 4016dcd625 Actually... return after the check for invalid input.
llvm-svn: 101139
2010-04-13 16:41:29 +00:00
Benjamin Kramer 55cfaa37de BumpPtrAllocator::Reset() doesn't need to allocate anything. (Thanks, Jakob)
llvm-svn: 101138
2010-04-13 16:38:06 +00:00
Benjamin Kramer 5d8eb779d5 Update unittest for allocator laziness.
llvm-svn: 101131
2010-04-13 15:01:26 +00:00
Benjamin Kramer 5b0650bf6e Let BumpPtrAllocator lazily allocate the first slab.
We have some code in llvm and clang where a BumpPtrAllocator is declared in a
class but never used in the common case. Stop wasting memory there.

llvm-svn: 101130
2010-04-13 14:41:51 +00:00
Owen Anderson b516f1c6cc Remove SCCVN from the CMake build system.
llvm-svn: 101125
2010-04-13 08:33:09 +00:00
Chris Lattner 069711865f checkpoint.
llvm-svn: 101118
2010-04-13 06:37:00 +00:00