Commit Graph

60127 Commits

Author SHA1 Message Date
Chris Lattner 4ba01ec869 refactor the interface to InlineFunction so that most of the in/out
arguments are handled with a new InlineFunctionInfo class.  This 
makes it easier to extend InlineFunction to return more info in the
future.

llvm-svn: 102137
2010-04-22 23:07:58 +00:00
Devang Patel 894874e7af Remove the test for now.
llvm-svn: 102135
2010-04-22 22:06:28 +00:00
Chris Lattner 64694df564 add macruby back
llvm-svn: 102132
2010-04-22 21:34:16 +00:00
Chris Lattner 016c00a311 when inlining something like this:
define void @f3(void (i8*)* %__f) ssp {
entry:
  call void %__f(i8* undef)
  unreachable
}

define void @f4(i8* %this) ssp align 2 {
entry:
  call void @f3(void (i8*)* @f2) ssp
  ret void
}

The inliner is turning the indirect call to %__f into a direct
call to F2.  Make the call graph more precise when this happens.

The inliner doesn't revisit call sites introduced by inlining,
so there isn't an easy way to test for this, but a more precise
callgraph is a good thing.

llvm-svn: 102131
2010-04-22 21:31:00 +00:00
Devang Patel 6adc5620ab Add comment.
llvm-svn: 102129
2010-04-22 20:56:35 +00:00
Dan Gohman 5b43aa0ddd Sink SelectionDAGBuilder's HandlePHINodesInSuccessorBlocks down
into SelectionDAGBuilder itself.

llvm-svn: 102128
2010-04-22 20:55:53 +00:00
Devang Patel ea2744f4dc Adjust debug range offsets for isWeakForLinker() functions.
llvm-svn: 102127
2010-04-22 20:52:00 +00:00
Dan Gohman 00365f967b Add a blurb about the new LSR.
llvm-svn: 102126
2010-04-22 20:50:43 +00:00
Nick Lewycky 08a75abd51 The -condprop pass has been deleted.
llvm-svn: 102125
2010-04-22 20:48:34 +00:00
Dan Gohman e6aa943949 The post-RA scheduler is currently off by default on x86.
llvm-svn: 102124
2010-04-22 20:47:28 +00:00
Dan Gohman c594eab10f Move HandlePHINodesInSuccessorBlocks functions out of SelectionDAGISel
and into SelectionDAGBuilder and FastISel.

llvm-svn: 102123
2010-04-22 20:46:50 +00:00
Douglas Gregor c5b5c0591d Add some verbiage about Clang to the 2.7 release notes
llvm-svn: 102121
2010-04-22 20:42:40 +00:00
Chris Lattner 055cf267db add a DEBUG call so that -debug lists when CGSCCPM iterates.
Fix RefreshCallGraph to use CGN->replaceCallEdge instead of hand
rolling its own loop.  replaceCallEdge properly maintains the
reference counts of the nodes, fixing a crash exposed by the
iterative callgraph stuff.

llvm-svn: 102120
2010-04-22 20:42:33 +00:00
Chris Lattner 0a3b5b4e39 eliminate dead #include.
llvm-svn: 102119
2010-04-22 20:41:10 +00:00
Evan Cheng f1223bdec0 - It's not safe to promote rotates (at least not trivially).
- Some code refactoring.

llvm-svn: 102111
2010-04-22 20:19:46 +00:00
Dan Gohman e149e9896c Fix a comment.
llvm-svn: 102110
2010-04-22 20:06:42 +00:00
Dan Gohman fd81254190 Move PHINodesToUpdate out of SelectionDAGBuilder and into
FunctionLoweringInfo, as it isn't SelectionDAG-specific. This isn't
completely natural, as PHI node state is not per-function but rather
per-basic-block, however there's currently no other convenient
per-basic-block state to group it with.

llvm-svn: 102109
2010-04-22 19:55:20 +00:00
Devang Patel 0fde4aeedd Rename InsnAfterLabelMap and InsnBeforeLabelMap.
llvm-svn: 102106
2010-04-22 18:43:35 +00:00
Devang Patel 53f530d44c Keep track of MCSymbol used to mark beginning of a function.
llvm-svn: 102104
2010-04-22 18:39:21 +00:00
Jim Grosbach 9628468d94 Add mention of ARM atomic builtin support
llvm-svn: 102103
2010-04-22 18:33:31 +00:00
Devang Patel bae14a1cab At this point Start and End are not null.
llvm-svn: 102102
2010-04-22 18:28:58 +00:00
Jim Grosbach 77f0f5b616 Update ARM frame index scavenging description
llvm-svn: 102101
2010-04-22 18:28:43 +00:00
Chris Lattner 0d34c06cf2 remove dupe
llvm-svn: 102100
2010-04-22 18:26:17 +00:00
Chris Lattner 77a23804b9 reword my incoherent babble into something that makes sense
from Wesley Peck!

llvm-svn: 102096
2010-04-22 17:39:38 +00:00
Chris Lattner ad2804110b two more projects.
llvm-svn: 102095
2010-04-22 17:28:36 +00:00
Chris Lattner cecb923e78 add some notes from Matthieu Moy!
llvm-svn: 102093
2010-04-22 17:25:00 +00:00
Chris Lattner 28175bf916 improve tblgen doc, pointed out by Zhongxing.
llvm-svn: 102072
2010-04-22 16:45:27 +00:00
Wesley Peck 9bc5e8f45e Fixing a typo in the "Clang project" section of the release notes.
llvm-svn: 102064
2010-04-22 14:19:00 +00:00
Wesley Peck cad613decc Small fix to the "Other Improvements and New Features" section of the release notes.
llvm-svn: 102063
2010-04-22 13:53:54 +00:00
Wesley Peck 3edc1684c2 Fixing small typos in the "New Useful APIs" section of the release notes.
llvm-svn: 102062
2010-04-22 13:50:46 +00:00
Wesley Peck 16144fbecd Fixing small typos in the "ARM Target Improvements" section of the release notes.
llvm-svn: 102061
2010-04-22 13:43:14 +00:00
Wesley Peck ba1ad20983 Rewording the "generated debug information" paragraph in the "Interpreter and JIT Improvements" section of the release notes.
llvm-svn: 102060
2010-04-22 13:36:27 +00:00
Wesley Peck c845916929 Reworking the wording of the "target data string" paragraph in the "Optimizer Improvments" section of the release notes.
llvm-svn: 102059
2010-04-22 13:28:34 +00:00
Gabor Greif d80517c061 <pre> seems to close <p>
llvm-svn: 102057
2010-04-22 10:25:23 +00:00
Gabor Greif 27b1663569 the validator coughed up some problems, most of them fixed
llvm-svn: 102056
2010-04-22 10:21:43 +00:00
Gabor Greif 862b35372f shorten link
llvm-svn: 102055
2010-04-22 10:11:24 +00:00
Chris Lattner ee8f1f0998 static analyzer has its own section
llvm-svn: 102054
2010-04-22 06:39:56 +00:00
Chris Lattner 2284b6aed8 add mc and static analyzer blurbs.
llvm-svn: 102053
2010-04-22 06:38:11 +00:00
Chris Lattner a67df2d537 another checkpoint.
llvm-svn: 102052
2010-04-22 06:28:20 +00:00
Chris Lattner 656db16db4 various updates.
llvm-svn: 102051
2010-04-22 05:41:35 +00:00
Chris Lattner 131378bd25 fix file header.
llvm-svn: 102049
2010-04-22 05:33:15 +00:00
Dan Gohman acd700a24b Don't attempt to analyze values which are obviously undef. This fixes some
assertion failures in extreme cases.

llvm-svn: 102042
2010-04-22 01:35:11 +00:00
Dan Gohman c951e6e414 Tidy a comment.
llvm-svn: 102041
2010-04-22 01:30:05 +00:00
Jakob Stoklund Olesen 14b1d758c6 Run LiveVariables instead of computing liveness locally in -regalloc=fast.
This actually makes everything slower, but the plan is to have isel add <kill>
flags the way it is already adding <dead> flags. Then LiveVariables can be
removed again.

When ignoring the time spent in LiveVariables, -regalloc=fast is now twice as
fast as -regalloc=local.

llvm-svn: 102034
2010-04-21 23:18:07 +00:00
Evan Cheng 02e816b317 Do not try to optimize a copy that has already been marked for deletion.
llvm-svn: 102027
2010-04-21 20:57:54 +00:00
Devang Patel 1a6e399874 Add command line option to disable debug info printing in .s file. This option does not impact debug info generation and preservation through earlier compile starges.
llvm-svn: 102012
2010-04-21 19:08:53 +00:00
Bob Wilson 4c7f50afb8 Fix a performance problem with the new SSAUpdater. This showed up in the
GCCAS time for MultiSource/Benchmarks/ASCI_Purple/SMG2000.

llvm-svn: 102009
2010-04-21 18:39:03 +00:00
Johnny Chen d85afee134 Modified some assert() msg strings; no other functionality change.
llvm-svn: 102008
2010-04-21 18:37:48 +00:00
Jakob Stoklund Olesen 8a070a540d Add fast register allocator, enabled with -regalloc=fast.
So far this is just a clone of -regalloc=local that has been lobotomized to run
25% faster. It drops the least-recently-used calculations, and is just plain
stupid when it runs out of registers.

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

llvm-svn: 102006
2010-04-21 18:02:42 +00:00
Devang Patel 0940a8085e Identify when a lexical scope is split in to multiple instruction ranges. Emit such ranges using DW_AT_ranges.
llvm-svn: 102004
2010-04-21 16:32:19 +00:00
Dan Gohman a029cbe93f Make ScalarEvolution::getConstant support pointer types, for consistency
with ScalarEvolution's overall approach to pointer types.

llvm-svn: 102003
2010-04-21 16:04:04 +00:00
Duncan Sands fe29117f6c Dragonegg will be released along side llvm-2.7.
llvm-svn: 102001
2010-04-21 13:51:48 +00:00
Chris Lattner a668b45ebd final hacking for tonight, still more to go.
llvm-svn: 101995
2010-04-21 06:42:24 +00:00
Chris Lattner 1dcca8bd5e continue the process of detangling this.
llvm-svn: 101992
2010-04-21 06:23:40 +00:00
Chris Lattner 87e049558e rough pass moving stuff into relevant sections, still much
editing to do.

llvm-svn: 101987
2010-04-21 05:17:40 +00:00
Chris Lattner 52791c2bc9 remove ldc, rubinious, macruby, icedtea, llvm-lua, which
don't have updates for 2.7.

llvm-svn: 101985
2010-04-21 04:28:21 +00:00
Evan Cheng 4158a0ff6b Implement -disable-non-leaf-fp-elim which disable frame pointer elimination
optimization for non-leaf functions. This will be hooked up to gcc's
-momit-leaf-frame-pointer option. rdar://7886181

llvm-svn: 101984
2010-04-21 03:18:23 +00:00
Evan Cheng 9c8cd8c061 isel (i32 anyext i16) as insert_subreg when 16-bit ops are being promoted.
llvm-svn: 101979
2010-04-21 01:47:12 +00:00
Evan Cheng 873310f635 Trim include.
llvm-svn: 101978
2010-04-21 01:39:06 +00:00
Dan Gohman 57c732b032 Add more const qualifiers on TargetMachine and friends.
llvm-svn: 101977
2010-04-21 01:34:56 +00:00
Dan Gohman cc5e6528a5 Update CMakeLists.txt.
llvm-svn: 101976
2010-04-21 01:32:29 +00:00
Dan Gohman 450aa64fc1 Move several SelectionDAG-independent utility functions out of the
SelectionDAG directory and into a new Analysis.cpp file.

llvm-svn: 101975
2010-04-21 01:22:34 +00:00
Johnny Chen dd56c40591 Thumb instructions which have reglist operands at the end and predicate operands
before reglist were not properly handled with respect to IT Block.  Fix that by
creating a new method ARMBasicMCBuilder::DoPredicateOperands() used by those
instructions for disassembly.  Add a test case.

llvm-svn: 101974
2010-04-21 01:01:19 +00:00
Chris Lattner 6fbe704932 Implement (but don't enable) PR6724 and rdar://6295824. In short,
we have RefreshCallGraph detect when a function pass devirtualizes
a call, and have CGSCCPassMgr iterate (up to a count) when this 
happens.  This allows (in the example) GVN to devirtualize the 
call in foo, then the inliner to inline it away.

This is not currently enabled because I haven't done any analysis
on the (potentially substantial) code size or performance impact of
doing this, and guess what, it exposes callgraph updating bugs in
various passes.  This is progress though, and you can play with it
by passing -max-cg-scc-iterations=5 to opt.

llvm-svn: 101973
2010-04-21 00:47:40 +00:00
Evan Cheng 2034d9f2da - Clean up some crappy code which deals with coalescing of copies which look at
extract_subreg / insert_subreg, etc.
- Add support for more aggressive insert_subreg coalescing.

llvm-svn: 101971
2010-04-21 00:44:22 +00:00
Dan Gohman 4398308fa7 Revert r101471. For tight recursive functions which have multiple
recursive callsites, inlining can reduce the number of calls by
exponential factors, as it does in
MultiSource/Benchmarks/Olden/treeadd. More involved heuristics
will be needed.

llvm-svn: 101969
2010-04-21 00:43:30 +00:00
Bill Wendling 11740305f9 Handle a displacement location in 64-bit as an RIP-relative displacement. It
fixes a bug (<rdar://problem/7880900>) in the JIT. This code wouldn't work:

target triple = "x86_64-apple-darwin"

define double @func(double %a) {
  %tmp1 = fmul double %a, 5.000000e-01            ; <double> [#uses=1]
  ret double %tmp1
}

define i32 @main() nounwind {
  %1 = call double @func(double 4.770000e-04) ; <i64> [#uses=0]
  ret i32 0
}

llvm-svn: 101965
2010-04-21 00:34:04 +00:00
Evan Cheng 4b2ef56ad2 Rewrite machine cse to avoid recursion.
llvm-svn: 101964
2010-04-21 00:21:07 +00:00
Dan Gohman ad33d33719 Add another variant of this test which found a place where
CodeGen's ComputeMaskedBits was being over-conservative when computing
bits for an ADD.

llvm-svn: 101963
2010-04-21 00:19:28 +00:00
Chris Lattner 84776786a7 teach the x86 address matching stuff to handle
(shl (or x,c), 3) the same as (shl (add x, c), 3)
when x doesn't have any bits from c set.

This finishes off PR1135.  Before we compiled the block to:
to:

LBB0_3:                                 ## %bb
	cmpb	$4, %dl
	sete	%dl
	addb	%dl, %cl
	movb	%cl, %dl
	shlb	$2, %dl
	addb	%r8b, %dl
	shlb	$2, %dl
	movzbl	%dl, %edx
	movl	%esi, (%rdi,%rdx,4)
	leaq	2(%rdx), %r9
	movl	%esi, (%rdi,%r9,4)
	leaq	1(%rdx), %r9
	movl	%esi, (%rdi,%r9,4)
	addq	$3, %rdx
	movl	%esi, (%rdi,%rdx,4)
	incb	%r8b
	decb	%al
	movb	%r8b, %dl
	jne	LBB0_1

Now we produce:

LBB0_3:                                 ## %bb
	cmpb	$4, %dl
	sete	%dl
	addb	%dl, %cl
	movb	%cl, %dl
	shlb	$2, %dl
	addb	%r8b, %dl
	shlb	$2, %dl
	movzbl	%dl, %edx
	movl	%esi, (%rdi,%rdx,4)
	movl	%esi, 8(%rdi,%rdx,4)
	movl	%esi, 4(%rdi,%rdx,4)
	movl	%esi, 12(%rdi,%rdx,4)
	incb	%r8b
	decb	%al
	movb	%r8b, %dl
	jne	LBB0_1

llvm-svn: 101958
2010-04-20 23:18:40 +00:00
Dale Johannesen 0522b90cdb Because of the EMMS problem, right now we have to support
user-defined operations that use MMX register types, but
the compiler shouldn't generate them on its own.  This adds
a Synthesizable abstraction to represent this, and changes
the vector widening computation so it won't produce MMX types.
(The motivation is to remove noise from the ABI compatibility
part of the gcc test suite, which has some breakage right now.)

llvm-svn: 101951
2010-04-20 22:34:09 +00:00
Devang Patel 2176643241 Rename ValueMapTy as ValueToValueMapTy to clearly indicate that this has no replationship with ADT/ValueMap.
llvm-svn: 101950
2010-04-20 22:24:18 +00:00
Devang Patel 382b969647 There is no need to install ValueMapper.h header.
llvm-svn: 101949
2010-04-20 22:18:31 +00:00
Johnny Chen 8bcc00b43e Better error-handling of getBitFieldInvMask() where msb < lsb (encoding error),
instead of just asserting.

llvm-svn: 101942
2010-04-20 21:29:28 +00:00
Duncan Sands 4dd125e278 I plan to release a version of dragonegg based on llvm-2.7 shortly
after the llvm-2.7 release.

llvm-svn: 101934
2010-04-20 19:40:58 +00:00
Jakob Stoklund Olesen 011207a0ae When MachineLICM is hoisting a physical register after regalloc, make sure the
register is not killed in the loop.

This fixes 188.ammp on ARM where the post-ra scheduler would grab a register
that looked available but wasn't.

A testcase would be huge and fragile, sorry.

llvm-svn: 101930
2010-04-20 18:45:47 +00:00
Johnny Chen d7209d2d56 When doing Thumb disassembly, there's no need to consider t2ADDrSPi12/t2SUBrSPi12,
as their generic counterparts t2ADDri12/t2SUBri12 should suffice.

llvm-svn: 101929
2010-04-20 18:45:24 +00:00
Bill Wendling a8ae1783b4 Move CodeGen/X86/2010-04-19-DAGCombineCrash.ll into CodeGen/X86/crash.ll. Also
reduce.

llvm-svn: 101925
2010-04-20 18:14:47 +00:00
Johnny Chen 7be315c414 For t2LDRT, t2LDRBT, t2LDRHT, t2LDRSBT, and t2LDRSHT, if Rn(Inst{19-16})=='1111',
transform the Opcode to the corresponding t2LDR*pci counterpart.

Ref: A8.6.86 LDRT, A8.6.65 LDRBT, A8.6.77 LDRHT, A8.6.81 LDRSBT, A8.6.85 LDRSHT
llvm-svn: 101915
2010-04-20 17:28:50 +00:00
Evan Cheng 4019d571d9 Typo.
llvm-svn: 101914
2010-04-20 17:27:38 +00:00
Devang Patel db6f71b02f Add RUN:
llvm-svn: 101913
2010-04-20 17:20:10 +00:00
Dan Gohman 950fe784be Sink the CopyToExportRegsIfNeeded calls out of SelectionDAGISel
into SelectionDAGBuilder. This avoids a separate pass over the
instructions, and has the side effect of providing debug location
information to the copy.

llvm-svn: 101906
2010-04-20 15:03:56 +00:00
Dan Gohman f41ad478ca Don't send PHI nodes down to SelectionDAGBuilder of FastISel, since
they end up doing nothing.

llvm-svn: 101904
2010-04-20 15:00:41 +00:00
Dan Gohman 7a6b0dfbe7 Document that TargetRegisterInfo::contains does not cover virtual registers.
llvm-svn: 101903
2010-04-20 14:51:20 +00:00
Dan Gohman 7c845e4ea4 Sink this use_empty() check into isUsedOutsideOfDefiningBlock.
llvm-svn: 101902
2010-04-20 14:50:13 +00:00
Dan Gohman 7b7f0883fe If a PHI node somehow has debug info, propogate it to the MachineInstr PHI.
llvm-svn: 101901
2010-04-20 14:48:02 +00:00
Dan Gohman 0f055d3f56 Don't iterate through the whole block just to find the PHI nodes.
llvm-svn: 101900
2010-04-20 14:46:25 +00:00
Gabor Greif 27b3d55194 use abstract accessors to CallInst
llvm-svn: 101899
2010-04-20 13:13:04 +00:00
Benjamin Kramer 395857705f PR6880: Don't dereference CallsExternalNode if it's NULL.
llvm-svn: 101897
2010-04-20 12:16:50 +00:00
Benjamin Kramer 80178eea6a Fix -Wcast-qual warning.
llvm-svn: 101894
2010-04-20 11:50:37 +00:00
Chris Lattner 5debc33168 stop computing InstImpInputs, it is dead
llvm-svn: 101881
2010-04-20 06:30:25 +00:00
Chris Lattner 9dc68d31fd DAGInstruction::ImpOperands is dead after my recent tblgen work, zap it.
llvm-svn: 101880
2010-04-20 06:28:43 +00:00
Chris Lattner 5100367ff3 Bill's change in r95336 broke empty aggregates embedded
in other types.  fix this by only bumping zero-byte globals
up to a single byte if the *entire global* is zero size,
fixing PR6340.

This also fixes empty arrays etc to be handled correctly,
and only does this on subsection-via-symbols targets (aka
darwin) which is the only place where this matters.

llvm-svn: 101879
2010-04-20 06:20:21 +00:00
Chris Lattner 38c1a1a247 teach cellspu how to return i8 and i16 from calls,
patch by Kalle Raiskila!

llvm-svn: 101875
2010-04-20 05:36:09 +00:00
Chris Lattner 66e809acc0 remove a bunch of ad-hoc code to simplify instructions from
loop unswitch, and use inst simplify instead.  It is more
powerful and less duplication.

llvm-svn: 101874
2010-04-20 05:33:18 +00:00
Chris Lattner c707fa9651 move some select simplifications out out instcombine into
inst simplify.  No functionality change.

llvm-svn: 101873
2010-04-20 05:32:14 +00:00
Chris Lattner 5814d9d9da RewriteLoopBodyWithConditionConstant can end up rewriting the
condition we're unswitching on.  In this case, don't try to
simplify the second copy of the loop which may be dead or not,
but is probably a constant now.  This fixes PR6879

llvm-svn: 101870
2010-04-20 05:09:16 +00:00
Chris Lattner c239eb79bd reapply 'reject forward references to functions whose type don't match'
now that the testsuite has been updated.

llvm-svn: 101866
2010-04-20 04:49:11 +00:00
Dan Gohman 0c862a86fa Delete a redundant return statement.
llvm-svn: 101860
2010-04-20 01:58:20 +00:00
Bill Wendling 467e6c2deb The visitXOR method can return the same SDNode. If so, we don't want to delete
it as it's not dead.

llvm-svn: 101855
2010-04-20 01:25:01 +00:00
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