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bf0184b684
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13448 Commits

Author SHA1 Message Date
Michael J. Spencer
bf0184b684 Fix typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122588 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-28 01:49:10 +00:00
Michael J. Spencer
628467ef1f Support/PathV2: Implement has_magic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122587 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-28 01:49:01 +00:00
Rafael Espindola
bdc3167c08 Add support for .cfi_lsda. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122584 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-27 15:56:22 +00:00
Michael J. Spencer
9170a0f02d Support/PathV1: Deprecate GetRootDirectory. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122580 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-27 03:21:41 +00:00
Rafael Espindola
3a83c40ab6 Add support for the same encodings of the personality function that gnu as 
supports.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122577 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-27 00:36:05 +00:00
Benjamin Kramer
def548f9a0 BuildLibCalls: Nuke EmitMemCpy, EmitMemMove and EmitMemSet. They are dead and superseded by IRBuilder. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122576 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-27 00:25:32 +00:00
Chris Lattner
a92ff91a96 implement enough of the memset inference algorithm to recognize and insert 
memsets.  This is still missing one important validity check, but this is enough
to compile stuff like this:

void test0(std::vector<char> &X) {
  for (std::vector<char>::iterator I = X.begin(), E = X.end(); I != E; ++I)
    *I = 0;
}

void test1(std::vector<int> &X) {
  for (long i = 0, e = X.size(); i != e; ++i)
    X[i] = 0x01010101;
}

With:
 $ clang t.cpp -S -o - -O2 -emit-llvm | opt -loop-idiom | opt -O3 | llc 

to:

__Z5test0RSt6vectorIcSaIcEE:            ## @_Z5test0RSt6vectorIcSaIcEE
## BB#0:                                ## %entry
	subq	$8, %rsp
	movq	(%rdi), %rax
	movq	8(%rdi), %rsi
	cmpq	%rsi, %rax
	je	LBB0_2
## BB#1:                                ## %bb.nph
	subq	%rax, %rsi
	movq	%rax, %rdi
	callq	___bzero
LBB0_2:                                 ## %for.end
	addq	$8, %rsp
	ret
...
__Z5test1RSt6vectorIiSaIiEE:            ## @_Z5test1RSt6vectorIiSaIiEE
## BB#0:                                ## %entry
	subq	$8, %rsp
	movq	(%rdi), %rax
	movq	8(%rdi), %rdx
	subq	%rax, %rdx
	cmpq	$4, %rdx
	jb	LBB1_2
## BB#1:                                ## %for.body.preheader
	andq	$-4, %rdx
	movl	$1, %esi
	movq	%rax, %rdi
	callq	_memset
LBB1_2:                                 ## %for.end
	addq	$8, %rsp
	ret



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122573 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-26 23:42:51 +00:00
Chris Lattner
c0d5496b8a add methods to IRBuilder to create memcpy/memset/memmove. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122571 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-26 22:49:25 +00:00
Rafael Espindola
d7c8ccae8e Add basic support for .cfi_personality. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122566 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-26 20:20:31 +00:00
Chris Lattner
bb89710ddd move isBytewiseValue out to ValueTracking.h/cpp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122565 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-26 20:15:01 +00:00
Chris Lattner
b0db161f5b Start of a pass for recognizing memset and memcpy idioms. 
No functionality yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122562 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-26 19:32:44 +00:00
Chris Lattner
687140c818 Move getOrEnforceKnownAlignment out of instcombine into Transforms/Utils. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122554 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-25 20:37:57 +00:00
Michael J. Spencer
43ee29d418 Support/PathV1: Deprecate makeAbsolute and remove Unix impl because it annoys people. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122553 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-25 20:10:11 +00:00
Eric Christopher
7853ae1d97 Header warning patrol. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122551 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-25 02:38:01 +00:00
Rafael Espindola
fea753b397 Merge IsFixupFullyResolved and IsSymbolRefDifferenceFullyResolved. We now 
have a single point where targets test if a relocation is needed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122549 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-24 21:22:02 +00:00
Andrew Trick
a75ce9f5d2 Minor cleanup related to my latest scheduler changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122545 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-24 07:10:19 +00:00
Andrew Trick
2da8bc8a5f Various bits of framework needed for precise machine-level selection 
DAG scheduling during isel. Most new functionality is currently
guarded by -enable-sched-cycles and -enable-sched-hazard.

Added InstrItineraryData::IssueWidth field, currently derived from
ARM itineraries, but could be initialized differently on other targets.

Added ScheduleHazardRecognizer::MaxLookAhead to indicate whether it is
active, and if so how many cycles of state it holds.

Added SchedulingPriorityQueue::HasReadyFilter to allowing gating entry
into the scheduler's available queue.

ScoreboardHazardRecognizer now accesses the ScheduleDAG in order to
get information about it's SUnits, provides RecedeCycle for bottom-up
scheduling, correctly computes scoreboard depth, tracks IssueCount, and
considers potential stall cycles when checking for hazards.

ScheduleDAGRRList now models machine cycles and hazards (under
flags). It tracks MinAvailableCycle, drives the hazard recognizer and
priority queue's ready filter, manages a new PendingQueue, properly
accounts for stall cycles, etc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122541 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-24 05:03:26 +00:00
Andrew Trick
6e8f4c4048 whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122539 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-24 04:28:06 +00:00
Chris Lattner
036609bd7d Flag -> Glue, the ongoing saga 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122513 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-23 18:28:41 +00:00
Chris Lattner
29d8f0cae4 flags -> glue for selectiondag 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122509 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-23 17:24:32 +00:00
Chris Lattner
a4359be032 sdisel flag -> glue. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122507 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-23 17:13:18 +00:00
Jeffrey Yasskin
8e68c38735 Change all self assignments X=X to (void)X, so that we can turn on a 
new gcc warning that complains on self-assignments and
self-initializations.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122458 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-23 00:58:24 +00:00
Dan Gohman
df3ee64d79 Constify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122447 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 22:10:08 +00:00
Rafael Espindola
90a5a0cd7c Rename NeedsSetToChangeDiffSize to HasAggressiveSymbolFolding which is a much 
better name and matches what is used in the MachO writer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122443 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 21:51:29 +00:00
Rafael Espindola
33a38a1b5a Use references and simplify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122405 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-22 16:11:57 +00:00
Rafael Espindola
7a45903bf4 Don't relax org or align. They change size as the relaxation happens, but they 
are not actually relaxed. For example, a section with only alignments will never
needs relaxation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122356 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 20:35:18 +00:00
Daniel Dunbar
e1feeb9da4 MC/Mach-O: Shuffle enums a bit to make it harder to inadvertently use the wrong 
type.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122334 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 15:26:45 +00:00
Duncan Sands
82fdab3358 Pull a few more simplifications out of instcombine (there are still 
plenty left though!), in particular for multiplication.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122330 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 14:00:22 +00:00
Rafael Espindola
62b83b62f3 Layout one section until no relaxations are done and then move to the next 
section.

This helps because in practice sections form a dag with debug sections pointing
to text sections. Finishing up the text sections first makes the debug section
relaxation trivial.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122314 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 04:22:09 +00:00
Chris Lattner
f1b4eafbfe rename MVT::Flag to MVT::Glue. "Flag" is a terrible name for 
something that just glues two nodes together, even if it is
sometimes used for flags.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122310 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 02:38:05 +00:00
Jakob Stoklund Olesen
b907e8a2d4 Use IntEqClasses to compute connected components of live intervals. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122296 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 00:48:17 +00:00
Jakob Stoklund Olesen
2a6899c539 Add ADT/IntEqClasses.h as a light-weight implementation of EquivalenceClasses.h. 
This implementation already exists as ConnectedVNInfoEqClasses in
LiveInterval.cpp, and it seems to be generally useful to have a light-weight way
of forming equivalence classes of small integers.

IntEqClasses doesn't allow enumeration of the elements in a class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122293 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-21 00:04:46 +00:00
Owen Anderson
3b77f56194 Revert r122114 (CallbackVH observing use-list changes) because it caused severe slowdowns on the Linux self-host configuration. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122279 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-20 22:28:03 +00:00
Bill Wendling
d7a0852464 This is still used and issuing an annoying warning. Don't deprecate something in 
the library unless *all* uses have been converted over to the new form.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122267 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-20 21:14:18 +00:00
Duncan Sands
43ff68ded0 Add a new convenience pass for testing InstructionSimplify. Previously 
it could only be tested indirectly, via instcombine, gvn or some other
pass that makes use of InstructionSimplify, which means that testcases
had to be carefully contrived to dance around any other transformations
that that pass did.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122264 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-20 20:54:37 +00:00
Michael J. Spencer
c41f4de754 Fix spelling. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122244 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-20 13:30:37 +00:00
Duncan Sands
0d7ce5ffa4 There is no need for isAssociative to take the type as an argument anymore. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122242 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-20 13:10:23 +00:00
Duncan Sands
8e4f4390bc Discourage people from using isWeakForLinker when they should be using 
mayBeOverridden.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122241 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-20 10:57:01 +00:00
Chris Lattner
4d8455ea4d update comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122212 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-20 00:56:59 +00:00
Nick Lewycky
9d38acb254 Use the new way of silencing this warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122195 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-19 20:57:14 +00:00
Nick Lewycky
476b242fe7 Add missing standard headers. Patch by Joerg Sonnenberger! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122193 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-19 20:43:38 +00:00
Chris Lattner
cc3029acdd add a version of IRBuilder::SetInsertPoint that takes an instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122180 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-19 19:16:22 +00:00
Chris Lattner
43afe75ad0 remove dead header 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122169 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-19 04:49:11 +00:00
Michael J. Spencer
c3207d8b5a Support/PathV1: Clarify deprecation warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122159 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 22:23:24 +00:00
Michael J. Spencer
7385509101 Support/PathV1: Deprecate get{Basename,Dirname,Suffix}. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122157 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 22:23:07 +00:00
Eric Christopher
9390983b08 Header warning patrol. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122152 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 10:54:29 +00:00
Roman Divacky
7529b16410 Add support for lexing single quotes like 'c'. 
This fixed 8615.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122150 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 08:56:37 +00:00
Owen Anderson
fffa863536 Revert r122143 through r122140, which collectively broke the LLVMC tests on 
the buildbots.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122149 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 07:37:18 +00:00
Rafael Espindola
3132780a2e Merge isAbsolute into IsSymbolRefDifferenceFullyResolved. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122148 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 06:27:54 +00:00
Rafael Espindola
1ec5bd31fe Remove the MCObjectFormat class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122147 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 05:37:28 +00:00