Chris Lattner
e2ca13d366
turn on memset idiom recognition by default. Though there are still lots of
...
limitations, this kicks in dozens of times in the 4 specfp2000 benchmarks,
and hundreds of times in the int part. It also kicks in hundreds of times
in multisource.
This kicks in right before loop deletion, which has the pleasant effect of
deleting loops that *just* do a memset.
llvm-svn: 122664
2011-01-01 20:39:18 +00:00
Daniel Dunbar
9ee74282a6
MC/Mach-O/Thumb: Set the thumb bit in the symbol table.
...
llvm-svn: 122630
2010-12-29 14:14:06 +00:00
Rafael Espindola
d51ed1fc6a
Implement cfi_def_cfa. Also don't convert to dwarf reg numbers twice. Looks
...
like 6 is a fixed point of that and so the previous tests were OK :-)
llvm-svn: 122614
2010-12-29 01:42:56 +00:00
Rafael Espindola
3fdd045643
Implement .cfi_remember_state and .cfi_restore_state.
...
llvm-svn: 122602
2010-12-28 18:36:23 +00:00
Duncan Sands
87515f1e57
Clarify that InstructionSimplify only returns values that dominate the
...
original instruction.
llvm-svn: 122601
2010-12-28 18:01:19 +00:00
Duncan Sands
707bdbd129
Small optimization to speed up replacementPreservesLCSSAForm.
...
llvm-svn: 122600
2010-12-28 18:00:24 +00:00
Rafael Espindola
c97d642bf7
Relax address updates in the eh_frame section.
...
llvm-svn: 122591
2010-12-28 05:39:27 +00:00
Rafael Espindola
0552cb0638
Start adding basic support for emitting the call frame instructions.
...
llvm-svn: 122590
2010-12-28 04:15:37 +00:00
Michael J. Spencer
b604751adb
Support/Path: Deprecate Path::hasMagicNumber and replace all uses with fs::has_magic.
...
llvm-svn: 122589
2010-12-28 01:49:21 +00:00
Michael J. Spencer
6d174b7e25
Fix typo.
...
llvm-svn: 122588
2010-12-28 01:49:10 +00:00
Michael J. Spencer
018595cf3a
Support/PathV2: Implement has_magic.
...
llvm-svn: 122587
2010-12-28 01:49:01 +00:00
Rafael Espindola
12c30aed07
Add support for .cfi_lsda.
...
llvm-svn: 122584
2010-12-27 15:56:22 +00:00
Michael J. Spencer
26654048d7
Support/PathV1: Deprecate GetRootDirectory.
...
llvm-svn: 122580
2010-12-27 03:21:41 +00:00
Rafael Espindola
e7e67fce10
Add support for the same encodings of the personality function that gnu as
...
supports.
llvm-svn: 122577
2010-12-27 00:36:05 +00:00
Benjamin Kramer
30e1ba0fcc
BuildLibCalls: Nuke EmitMemCpy, EmitMemMove and EmitMemSet. They are dead and superseded by IRBuilder.
...
llvm-svn: 122576
2010-12-27 00:25:32 +00:00
Chris Lattner
d4daf9f002
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
llvm-svn: 122573
2010-12-26 23:42:51 +00:00
Chris Lattner
a46fd80777
add methods to IRBuilder to create memcpy/memset/memmove.
...
llvm-svn: 122571
2010-12-26 22:49:25 +00:00
Rafael Espindola
99f1527316
Add basic support for .cfi_personality.
...
llvm-svn: 122566
2010-12-26 20:20:31 +00:00
Chris Lattner
c56d20aa48
move isBytewiseValue out to ValueTracking.h/cpp
...
llvm-svn: 122565
2010-12-26 20:15:01 +00:00
Chris Lattner
e210c31646
Start of a pass for recognizing memset and memcpy idioms.
...
No functionality yet.
llvm-svn: 122562
2010-12-26 19:32:44 +00:00
Chris Lattner
c4cb20b9bf
Move getOrEnforceKnownAlignment out of instcombine into Transforms/Utils.
...
llvm-svn: 122554
2010-12-25 20:37:57 +00:00
Michael J. Spencer
b3e50a570f
Support/PathV1: Deprecate makeAbsolute and remove Unix impl because it annoys people.
...
llvm-svn: 122553
2010-12-25 20:10:11 +00:00
Eric Christopher
61974eb1f8
Header warning patrol.
...
llvm-svn: 122551
2010-12-25 02:38:01 +00:00
Rafael Espindola
b2e09adc62
Merge IsFixupFullyResolved and IsSymbolRefDifferenceFullyResolved. We now
...
have a single point where targets test if a relocation is needed.
llvm-svn: 122549
2010-12-24 21:22:02 +00:00
Andrew Trick
dfa31b1cf9
Minor cleanup related to my latest scheduler changes.
...
llvm-svn: 122545
2010-12-24 07:10:19 +00:00
Andrew Trick
134b2a5907
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.
llvm-svn: 122541
2010-12-24 05:03:26 +00:00
Andrew Trick
53f4556c64
whitespace
...
llvm-svn: 122539
2010-12-24 04:28:06 +00:00
Chris Lattner
01e8c46349
Flag -> Glue, the ongoing saga
...
llvm-svn: 122513
2010-12-23 18:28:41 +00:00
Chris Lattner
b607e7deda
flags -> glue for selectiondag
...
llvm-svn: 122509
2010-12-23 17:24:32 +00:00
Chris Lattner
fb9ff7a4ff
sdisel flag -> glue.
...
llvm-svn: 122507
2010-12-23 17:13:18 +00:00
Jeffrey Yasskin
a199652a3e
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.
llvm-svn: 122458
2010-12-23 00:58:24 +00:00
Dan Gohman
db69a33d9f
Constify.
...
llvm-svn: 122447
2010-12-22 22:10:08 +00:00
Rafael Espindola
81ac7c5fad
Rename NeedsSetToChangeDiffSize to HasAggressiveSymbolFolding which is a much
...
better name and matches what is used in the MachO writer.
llvm-svn: 122443
2010-12-22 21:51:29 +00:00
Rafael Espindola
c05eac148d
Use references and simplify.
...
llvm-svn: 122405
2010-12-22 16:11:57 +00:00
Rafael Espindola
3d9afa3c44
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.
llvm-svn: 122356
2010-12-21 20:35:18 +00:00
Daniel Dunbar
1c98bbd915
MC/Mach-O: Shuffle enums a bit to make it harder to inadvertently use the wrong
...
type.
llvm-svn: 122334
2010-12-21 15:26:45 +00:00
Duncan Sands
6b0ed93a81
Pull a few more simplifications out of instcombine (there are still
...
plenty left though!), in particular for multiplication.
llvm-svn: 122330
2010-12-21 14:00:22 +00:00
Rafael Espindola
e0e966982a
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.
llvm-svn: 122314
2010-12-21 04:22:09 +00:00
Chris Lattner
65c5243bd6
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.
llvm-svn: 122310
2010-12-21 02:38:05 +00:00
Jakob Stoklund Olesen
86786c46c2
Use IntEqClasses to compute connected components of live intervals.
...
llvm-svn: 122296
2010-12-21 00:48:17 +00:00
Jakob Stoklund Olesen
26b4e8ec0a
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.
llvm-svn: 122293
2010-12-21 00:04:46 +00:00
Owen Anderson
c1eee5ac49
Revert r122114 (CallbackVH observing use-list changes) because it caused severe slowdowns on the Linux self-host configuration.
...
llvm-svn: 122279
2010-12-20 22:28:03 +00:00
Bill Wendling
265b7b81b6
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.
llvm-svn: 122267
2010-12-20 21:14:18 +00:00
Duncan Sands
09fbb211eb
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.
llvm-svn: 122264
2010-12-20 20:54:37 +00:00
Michael J. Spencer
4781534e1c
Fix spelling.
...
llvm-svn: 122244
2010-12-20 13:30:37 +00:00
Duncan Sands
a37d282962
There is no need for isAssociative to take the type as an argument anymore.
...
llvm-svn: 122242
2010-12-20 13:10:23 +00:00
Duncan Sands
d72bd136f2
Discourage people from using isWeakForLinker when they should be using
...
mayBeOverridden.
llvm-svn: 122241
2010-12-20 10:57:01 +00:00
Chris Lattner
47b7bc98ae
update comment.
...
llvm-svn: 122212
2010-12-20 00:56:59 +00:00
Nick Lewycky
de10f6132c
Use the new way of silencing this warning.
...
llvm-svn: 122195
2010-12-19 20:57:14 +00:00
Nick Lewycky
c85935836b
Add missing standard headers. Patch by Joerg Sonnenberger!
...
llvm-svn: 122193
2010-12-19 20:43:38 +00:00
Chris Lattner
4ce6f60782
add a version of IRBuilder::SetInsertPoint that takes an instruction.
...
llvm-svn: 122180
2010-12-19 19:16:22 +00:00
Chris Lattner
70cfded393
remove dead header
...
llvm-svn: 122169
2010-12-19 04:49:11 +00:00
Michael J. Spencer
0e0c7c269f
Support/PathV1: Clarify deprecation warning.
...
llvm-svn: 122159
2010-12-18 22:23:24 +00:00
Michael J. Spencer
4701f704be
Support/PathV1: Deprecate get{Basename,Dirname,Suffix}.
...
llvm-svn: 122157
2010-12-18 22:23:07 +00:00
Eric Christopher
4e2b6c0e28
Header warning patrol.
...
llvm-svn: 122152
2010-12-18 10:54:29 +00:00
Roman Divacky
ed5bb14415
Add support for lexing single quotes like 'c'.
...
This fixed 8615.
llvm-svn: 122150
2010-12-18 08:56:37 +00:00
Owen Anderson
7103acd18e
Revert r122143 through r122140, which collectively broke the LLVMC tests on
...
the buildbots.
llvm-svn: 122149
2010-12-18 07:37:18 +00:00
Rafael Espindola
df98fb74f6
Merge isAbsolute into IsSymbolRefDifferenceFullyResolved.
...
llvm-svn: 122148
2010-12-18 06:27:54 +00:00
Rafael Espindola
7f9be9e112
Remove the MCObjectFormat class.
...
llvm-svn: 122147
2010-12-18 05:37:28 +00:00
Michael J. Spencer
b70c703b01
Support/PathV1: Clarify deprecation warning.
...
llvm-svn: 122143
2010-12-18 04:13:54 +00:00
Michael J. Spencer
6d64a36ced
Support/PathV1: Deprecate get{Basename,Dirname,Suffix}.
...
llvm-svn: 122141
2010-12-18 04:13:36 +00:00
Rafael Espindola
f3aeaaa3f4
Revert 122011, 122012, 122013, 122023 adding back an important optimization.
...
I added a note, but suggestions on how to add a test are really welcome.
llvm-svn: 122138
2010-12-18 03:57:21 +00:00
Rafael Espindola
9a4bfd7755
Move some data to the TargetWriter.
...
llvm-svn: 122134
2010-12-18 03:27:34 +00:00
Michael J. Spencer
bb238417bb
Support/PathV1: Deprecate getLast.
...
llvm-svn: 122116
2010-12-18 00:19:10 +00:00
Owen Anderson
702d715185
Add support to CallbackVH to receive notification when a Value's use-list changes.
...
llvm-svn: 122114
2010-12-18 00:07:15 +00:00
Jakob Stoklund Olesen
2879da5e13
Pass a Banner argument to the machine code verifier both from
...
createMachineVerifierPass and MachineFunction::verify.
The banner is printed before the machine code dump, just like the printer pass.
llvm-svn: 122113
2010-12-18 00:06:56 +00:00
Jakob Stoklund Olesen
6498db2c8c
Avoid dereferencing end() in collectInterferingVRegs() when there is no
...
interference.
llvm-svn: 122108
2010-12-17 23:16:38 +00:00
Jakob Stoklund Olesen
df9e162423
Enable loop splitting in RegAllocGreedy.
...
The heuristics split around the largest loop where the current register may be
allocated without interference.
llvm-svn: 122106
2010-12-17 23:16:32 +00:00
Bill Wendling
c16f9b1ccc
During local stack slot allocation, the materializeFrameBaseRegister function
...
may be called. If the entry block is empty, the insertion point iterator will be
the "end()" value. Calling ->getParent() on it (among others) causes problems.
Modify materializeFrameBaseRegister to take the machine basic block and insert
the frame base register at the beginning of that block. (It's very similar to
what the code does all ready. The only difference is that it will always insert
at the beginning of the entry block instead of after a previous materialization
of the frame base register. I doubt that that matters here.)
<rdar://problem/8782198>
llvm-svn: 122104
2010-12-17 23:09:14 +00:00
Jakob Stoklund Olesen
64c013d79d
Add more checks to IntervalMapOverlaps::advance() to ensure that advanceTo sees
...
monotonic keys.
llvm-svn: 122093
2010-12-17 22:07:54 +00:00
Jakob Stoklund Olesen
f17722908c
It is allowed to call IntervalMap::const_iterator::advanceTo() with a key that
...
moves the iterator to end(), and it is valid to call it on end().
That means it is valid to call advanceTo() with any monotonic key sequence.
llvm-svn: 122092
2010-12-17 22:07:51 +00:00
Michael J. Spencer
bc84ff581f
Fix 80 col.
...
llvm-svn: 122089
2010-12-17 21:32:47 +00:00
Michael J. Spencer
f2bf8518fb
Support/Path: Deprecate PathV1::isAbsolute.
...
llvm-svn: 122086
2010-12-17 21:21:31 +00:00
Jakob Stoklund Olesen
aec6ae67a1
Fix crash when IntervalMapOverlaps::advanceTo moves past the last overlap.
...
llvm-svn: 122081
2010-12-17 19:18:38 +00:00
Benjamin Kramer
89db30db3a
Pass StringRefs by value, for consistency.
...
llvm-svn: 122074
2010-12-17 18:19:06 +00:00
Jakob Stoklund Olesen
f4a0c81371
Add MachineLoopRange comparators for sorting loop lists by number and by area.
...
llvm-svn: 122073
2010-12-17 18:13:52 +00:00
Rafael Espindola
b9ca29bc1c
Stub out explicit MCELFObjectTargetWriter interface.
...
llvm-svn: 122067
2010-12-17 17:45:22 +00:00
Michael J. Spencer
63aaa03399
Support: Rename Path.h to PathV1.h and add a new Path.h that includes both V1 and V2.
...
llvm-svn: 122065
2010-12-17 17:22:36 +00:00
Rafael Espindola
38e6fdfd1d
Move createELFObjectWriter to its own header.
...
llvm-svn: 122064
2010-12-17 16:59:53 +00:00
Chris Lattner
e92f8121d4
improve switch formation to handle small range
...
comparisons formed by comparisons. For example,
this:
void foo(unsigned x) {
if (x == 0 || x == 1 || x == 3 || x == 4 || x == 6)
bar();
}
compiles into:
_foo: ## @foo
## BB#0: ## %entry
cmpl $6, %edi
ja LBB0_2
## BB#1: ## %entry
movl %edi, %eax
movl $91, %ecx
btq %rax, %rcx
jb LBB0_3
instead of:
_foo: ## @foo
## BB#0: ## %entry
cmpl $2, %edi
jb LBB0_4
## BB#1: ## %switch.early.test
cmpl $6, %edi
ja LBB0_3
## BB#2: ## %switch.early.test
movl %edi, %eax
movl $88, %ecx
btq %rax, %rcx
jb LBB0_4
This catches a bunch of cases in GCC, which look like this:
%804 = load i32* @which_alternative, align 4, !tbaa !0
%805 = icmp ult i32 %804, 2
%806 = icmp eq i32 %804, 3
%or.cond121 = or i1 %805, %806
%807 = icmp eq i32 %804, 4
%or.cond124 = or i1 %or.cond121, %807
br i1 %or.cond124, label %.thread, label %808
turning this into a range comparison.
llvm-svn: 122045
2010-12-17 06:20:15 +00:00
Daniel Dunbar
6979fc1057
MC/Mach-O: On second thought, use a custom hook for enabling aggressive
...
IsSymbolRefDifferenceFullyResolved, it turns out this does change behavior on
enough cases for x86-32 that I would rather wait a bit on it.
- In practice, we will want to change this eventually because it only means we
generate less relocations (it also eliminates the need for the horrible
'.set' hack that Darwin requires in some places).
llvm-svn: 122042
2010-12-17 05:50:29 +00:00
Daniel Dunbar
2caf23b5a9
MC/ObjectWriter: Add a new IsSymbolRefDifferenceFullyResolved target format specific hook.
...
- Currently just has stub implementations for Mach-O, ELF, and COFF.
llvm-svn: 122037
2010-12-17 04:54:54 +00:00
Jakob Stoklund Olesen
40f23cd5ca
Provide LiveIntervalUnion::Query::checkLoopInterference.
...
This is a three-way interval list intersection between a virtual register, a
live interval union, and a loop. It will be used to identify interference-free
loops for live range splitting.
llvm-svn: 122034
2010-12-17 04:09:47 +00:00
Daniel Dunbar
f77af712b7
MC/Assembler: Strip out object writer arguments, now that it is always available
...
-- and remove FIXME asking for the same!
llvm-svn: 122032
2010-12-17 02:45:59 +00:00
Daniel Dunbar
54b3f3e5db
MC/Assembler: Make the MCObjectWriter available through the lifetime of the
...
assembler.
llvm-svn: 122031
2010-12-17 02:45:41 +00:00
Daniel Dunbar
6d4a3e98f3
MC/Target: Remove HasScatteredSymbols target hook variable, which has been
...
superceded and was effectively dead.
llvm-svn: 122024
2010-12-17 02:06:08 +00:00
Daniel Dunbar
0d8fdf42c7
MC/Expr: Simplify.
...
llvm-svn: 122023
2010-12-17 02:05:45 +00:00
Daniel Dunbar
565c90b316
MC: Remove another dead MCAssembler argument, and update clients.
...
llvm-svn: 122013
2010-12-17 01:07:35 +00:00
Daniel Dunbar
9f83b4d605
MC: Remove dead MCAssembler argument -- Rafael, can you check the FIXME I added
...
here?
llvm-svn: 122012
2010-12-17 01:07:31 +00:00
Daniel Dunbar
8b0153bed2
Fix 80-col viola.
...
llvm-svn: 122010
2010-12-17 01:07:25 +00:00
Jakob Stoklund Olesen
9681be67c5
Add basic test exposing many bugs.
...
llvm-svn: 121995
2010-12-16 19:46:09 +00:00
Daniel Dunbar
2277f06687
MC/Mach-O: Lift some MachObjectWriter arguments into the target specific
...
interface.
llvm-svn: 121981
2010-12-16 17:21:02 +00:00
Daniel Dunbar
5fee4f6862
MC/Mach-O: Stub out explicit MCMachObjectTargetWriter interface.
...
llvm-svn: 121973
2010-12-16 16:09:19 +00:00
Daniel Dunbar
636e690f58
MC/Mach-O: Move createMachObjectWriter into MCMachObjectWriter.h.
...
llvm-svn: 121971
2010-12-16 16:08:33 +00:00
Michael J. Spencer
86f6a9ac6e
MemoryBuffer now return an error_code and returns a OwningPtr<MemoryBuffer> via an out parm.
...
llvm-svn: 121958
2010-12-16 03:29:14 +00:00
Daniel Dunbar
fc14f1e5f6
MC: Move target specific fixup info descriptors to TargetAsmBackend instead of
...
the MCCodeEmitter, which seems like a better organization.
- Also, cleaned up some magic constants while in the area.
llvm-svn: 121953
2010-12-16 03:20:06 +00:00
Daniel Dunbar
8ab9be2005
MC: Make TargetAsmBackend available to the AsmStreamer.
...
- Treaty talks on the non-proliferation of MC objects broke down.
llvm-svn: 121949
2010-12-16 03:05:59 +00:00
Daniel Dunbar
b5ea5a74f9
MC: Split MCFixupKindInfo out into its own header.
...
llvm-svn: 121948
2010-12-16 03:05:53 +00:00
Daniel Dunbar
fc4b79c9e8
MC: Remove a FIXME I no longer agree with.
...
llvm-svn: 121947
2010-12-16 03:05:46 +00:00
Jakob Stoklund Olesen
ae68a4eb6d
Add IntervalMapOverlaps - An iterator for overlapping intervals in two
...
IntervalMaps.
The IntervalMaps can have different template parameters, but the KeyT and Traits
types must be the same.
Tests are forthcoming.
llvm-svn: 121935
2010-12-16 01:18:29 +00:00
Jakob Stoklund Olesen
d40af5ffbd
Add MachineLoopRanges analysis.
...
A MachineLoopRange contains the intervals of slot indexes covered by the blocks
in a loop. This representation of the loop blocks is more efficient to compare
against interfering registers during register coalescing.
llvm-svn: 121917
2010-12-15 23:41:23 +00:00
Rafael Espindola
37a22419ce
Typo.
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llvm-svn: 121906
2010-12-15 22:33:06 +00:00
Bob Wilson
438a9a1367
Add Neon VCVT instructions for f32 <-> f16 conversions.
...
Clang is now providing intrinsics for these and so we need to support them
in the backend. Radar 8068427.
llvm-svn: 121902
2010-12-15 22:14:12 +00:00
Jakob Stoklund Olesen
1fc1f0c4a0
Add SlotIndexes::getMBBRange() to get the range of a basic block in a single
...
lookup.
llvm-svn: 121893
2010-12-15 20:40:22 +00:00
Wesley Peck
66ff11fc09
Adding target specific calling conventions to support the MBlaze GCC function
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attributes "interrupt_handle" and "save_volatiles". Support for lowering these
correctly will be in an upcoming commit.
llvm-svn: 121888
2010-12-15 20:14:09 +00:00
Dan Gohman
295ba3ab26
Move Value::getUnderlyingObject to be a standalone
...
function so that it can live in Analysis instead of
VMCore.
llvm-svn: 121885
2010-12-15 20:02:24 +00:00
Owen Anderson
202d654195
Implement cleanups suggested by Daniel.
...
llvm-svn: 121875
2010-12-15 18:48:27 +00:00
Duncan Sands
2699fb1072
Move Sub simplifications and additional Add simplifications out of
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instcombine and into InstructionSimplify.
llvm-svn: 121861
2010-12-15 14:07:39 +00:00
Rafael Espindola
94d026d157
Relax alignment fragments.
...
With this we don't need the EffectiveSize field anymore. Without that field
LayoutFragment only updates offsets and we don't need to invalidate the
current fragment when it is relaxed (only the ones following it).
This is also a very small improvement in the accuracy of the layout info as
we now use the after relaxation size immediately.
llvm-svn: 121857
2010-12-15 08:45:53 +00:00
Rafael Espindola
102a0b7b74
Generalize an assert.
...
llvm-svn: 121851
2010-12-15 07:12:24 +00:00
Jakob Stoklund Olesen
22ff831572
Introduce TargetRegisterInfo::getOverlaps(Reg), returning a list of all
...
registers that alias Reg, including itself. This is almost the same as the
existing getAliasSet() method, except for the inclusion of Reg.
The name matches the reflexive TRI::regsOverlap(x, y) relation.
It is very common to do stuff to a register and all its aliases:
stuff(Reg)
for (const unsigned *Alias = TRI->getAliasSet(Reg); *Alias; ++Alias)
stuff(*Alias);
That can now be written as the simpler:
for (const unsigned *Alias = TRI->getOverlaps(Reg); *Alias; ++Alias)
stuff(*Alias);
This change requires a bit more constant space for the alias lists because Reg
is included and because the empty alias list cannot be shared any longer.
If the getAliasSet method is eventually removed, this space can be reclaimed by
sharing overlap lists. For instance, %rax and %eax have identical overlap sets.
llvm-svn: 121800
2010-12-14 23:03:42 +00:00
Jakob Stoklund Olesen
d0b2397aaa
Add TargetRegisterInfo::printReg() to pretty-print registers.
...
llvm-svn: 121780
2010-12-14 18:53:39 +00:00
Jim Grosbach
25d3e79b23
ARM Fixups relative to thumb functions need to have the low bit of the value
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set for interworking to work properly. rdar://8755956
llvm-svn: 121778
2010-12-14 18:46:57 +00:00
Chris Lattner
027d572664
remove the dead (and terrible) llvm::RemoveSuccessor function.
...
llvm-svn: 121753
2010-12-14 06:51:55 +00:00
Jakob Stoklund Olesen
3fbb216a33
Remove debugging code.
...
llvm-svn: 121738
2010-12-14 00:37:52 +00:00
Dan Gohman
9d1f5ce1da
Introduce a new PartialAlias response for AliasAnalysis. For most
...
AliasAnalysis consumers, PartialAlias will be treated as MayAlias.
For AliasAnalysis chaining, MayAlias says "procede to the next analysis".
PartialAlias will be used to indicate that the query should terminate,
even though it didn't reach MustAlias or NoAlias.
llvm-svn: 121507
2010-12-10 19:38:58 +00:00
Rafael Espindola
0e665e502d
Fixed version of 121434 with no new memory leaks.
...
llvm-svn: 121471
2010-12-10 07:39:47 +00:00
Daniel Dunbar
37bc9a74ac
Mach-O/ARM: Add relocation type enumeration.
...
llvm-svn: 121467
2010-12-10 06:19:49 +00:00
Daniel Dunbar
fd96efb8e9
Mach-O: Tweak field name.
...
llvm-svn: 121465
2010-12-10 06:19:39 +00:00
Nick Lewycky
0177564114
Remove dead header.
...
llvm-svn: 121463
2010-12-10 05:12:54 +00:00
Rafael Espindola
011e168728
Revert my previous patch to make the valgrind bots happy.
...
llvm-svn: 121461
2010-12-10 04:01:09 +00:00
Rafael Espindola
03ad1e8f1f
Initial support for the cfi directives. This is just enough to get
...
f:
.cfi_startproc
nop
.cfi_endproc
assembled (on ELF).
llvm-svn: 121434
2010-12-09 23:48:29 +00:00
Owen Anderson
a8ac35b468
Fix an issue in some Thumb fixups, where the effective PC address needs to be 4-byte aligned when calculating
...
the offset. Add a new fixup flag to represent this, and use it for the one fixups that I have a testcase for needing
this. It's quite likely that the other Thumb fixups will need this too, and to have their fixup encoding logic
adjusted accordingly.
llvm-svn: 121408
2010-12-09 20:27:52 +00:00
Michael J. Spencer
95b8bf9f67
Fix whitespace.
...
llvm-svn: 121382
2010-12-09 17:37:32 +00:00
Michael J. Spencer
c4c4e1133d
Support: Move c_str from SmallVector back to SmallString and add a free standing
...
templated c_str in Windows.h to replace it.
llvm-svn: 121381
2010-12-09 17:37:18 +00:00
Michael J. Spencer
1d95a8f9bc
Support/FileSystem: Change file_status predicate functions that cannot fail to
...
return their result instead of an error_code. Also add some missing predicate
functions.
llvm-svn: 121380
2010-12-09 17:37:02 +00:00
Michael J. Spencer
15483143ec
Support/MemoryBuffer: Replace all uses of std::string *ErrMsg with error_code &ec. And fix clients.
...
llvm-svn: 121379
2010-12-09 17:36:48 +00:00
Lang Hames
334ef20886
Fixed some dependencies in RegAllocPBQP.h . Thanks to Borja Ferrer for pointing out this issue.
...
llvm-svn: 121292
2010-12-08 22:15:32 +00:00
Devang Patel
90fd70aa09
Add support to create debug info for functions and methods.
...
llvm-svn: 121281
2010-12-08 20:42:44 +00:00
Devang Patel
53f05af4c1
Add support to create class type.
...
llvm-svn: 121279
2010-12-08 20:18:20 +00:00
Andrew Trick
fb72ca2129
Generalize PostRAHazardRecognizer so it can be used in any pass for
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both forward and backward scheduling. Rename it to
ScoreboardHazardRecognizer (Scoreboard is one word). Remove integer
division from the scoreboard's critical path.
llvm-svn: 121274
2010-12-08 20:04:29 +00:00
Jakob Stoklund Olesen
d638b989f2
Stub out RegAllocGreedy.
...
This new register allocator is initially identical to RegAllocBasic, but it will
receive all of the tricks that RegAllocBasic won't get.
RegAllocGreedy will eventually replace linear scan.
llvm-svn: 121234
2010-12-08 03:26:16 +00:00
Devang Patel
b7a7988b6b
Add support to create vector, array, enums etc...
...
llvm-svn: 121224
2010-12-08 01:50:15 +00:00
Jim Grosbach
d4eea7c10d
Let target asm backends see assembler flags as they go by. Use that to handle
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thumb vs. arm mode differences in WriteNopData().
llvm-svn: 121219
2010-12-08 01:16:55 +00:00
Devang Patel
0c0accf6bc
Global variable does not need linkage name.
...
llvm-svn: 121212
2010-12-08 00:06:22 +00:00
Devang Patel
bdbff5f106
Add support to create local variable's debug info.
...
llvm-svn: 121211
2010-12-07 23:58:00 +00:00
Rafael Espindola
790fe1d064
Layout each section independently. With the testcase in PR8711:
...
before:
4 assembler - Number of assembler layout and relaxation steps
78563 assembler - Number of emitted assembler fragments
8693904 assembler - Number of emitted object file bytes
271223 assembler - Number of evaluated fixups
330771677 assembler - Number of fragment layouts
5958 assembler - Number of relaxed instructions
2508361 mcexpr - Number of MCExpr evaluations
real 0m26.123s
user 0m25.694s
sys 0m0.388s
after:
4 assembler - Number of assembler layout and relaxation steps
78563 assembler - Number of emitted assembler fragments
8693904 assembler - Number of emitted object file bytes
271223 assembler - Number of evaluated fixups
231507 assembler - Number of fragment layouts
5958 assembler - Number of relaxed instructions
2508361 mcexpr - Number of MCExpr evaluations
real 0m2.500s
user 0m2.113s
sys 0m0.273s
And yes, the outputs are identical :-)
llvm-svn: 121207
2010-12-07 23:32:26 +00:00
Devang Patel
cef2982b39
Add support to create variables, structs etc.. using DIBuilder.
...
This is still work in progress.
llvm-svn: 121205
2010-12-07 23:25:47 +00:00
Jakob Stoklund Olesen
87009679c3
Fix begin() and end() on const IntervalMap.
...
llvm-svn: 121200
2010-12-07 23:18:43 +00:00
Michael J. Spencer
8583707324
Missed a spot removing Alarm.
...
llvm-svn: 121161
2010-12-07 18:50:33 +00:00
Michael J. Spencer
3885add959
Support: Remove Alarm. It is unused (via local grep and google code search).
...
llvm-svn: 121160
2010-12-07 18:41:59 +00:00
Michael J. Spencer
3dc94b3cc1
Support/PathV2: Remove const from bool return types.
...
llvm-svn: 121157
2010-12-07 18:12:07 +00:00
Michael J. Spencer
cda94ff1f3
Fix spelling.
...
llvm-svn: 121156
2010-12-07 18:11:54 +00:00
Michael J. Spencer
a679d9b91b
Support: Remove DynamicLinker.h. It is unused and unimplemented.
...
llvm-svn: 121155
2010-12-07 18:11:38 +00:00
Michael J. Spencer
7979bb402f
Support/PathV2: Change most functions in the path namespace to return their work
...
via their return value instead of an out parameter.
llvm-svn: 121149
2010-12-07 17:04:04 +00:00
Jay Foad
79e18ed269
PR5207: Change APInt methods trunc(), sext(), zext(), sextOrTrunc() and
...
zextOrTrunc(), and APSInt methods extend(), extOrTrunc() and new method
trunc(), to be const and to return a new value instead of modifying the
object in place.
llvm-svn: 121120
2010-12-07 08:25:19 +00:00
Michael J. Spencer
a96fe51fa6
Support/PathV2: Remove the error_code return type from all functions in the path
...
namespace. None of them return anything except for success anyway. These will be
converted to returning their result soon.
llvm-svn: 121109
2010-12-07 03:57:37 +00:00
Michael J. Spencer
7c3efd63d4
Support/PathV2: Move make_absolute from path to fs.
...
llvm-svn: 121108
2010-12-07 03:57:17 +00:00
Michael J. Spencer
a59a7b3965
Support/PathV2: Clarify and correct documentation.
...
llvm-svn: 121091
2010-12-07 01:23:08 +00:00
Michael J. Spencer
898af0f235
Support/PathV2: Move current_path from path to fs and fix the Unix implementation.
...
Unix bug spotted by Dan Gohman.
llvm-svn: 121090
2010-12-07 01:22:31 +00:00