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Author SHA1 Message Date
Duncan Sands
9a6f3eb8ae More spelling and grammar tweaks. 
llvm-svn: 83728
 2009-10-10 20:06:04 +00:00
Benjamin Kramer
453e8ae2be More spelling fixes. 
llvm-svn: 83724
 2009-10-10 19:45:13 +00:00
Duncan Sands
4e12fa3691 Spelling fixes. 
llvm-svn: 83722
 2009-10-10 19:30:16 +00:00
Chris Lattner
074b4dee13 more tweaks 
llvm-svn: 83721
 2009-10-10 19:26:21 +00:00
Duncan Sands
bf2f32c08b Remove an inappropriate line in the description of the 
clang static analyser.  Decrease duplication in the text.

llvm-svn: 83720
 2009-10-10 19:16:25 +00:00
Chris Lattner
8f7bd86796 continue decoding chris scribble. 
llvm-svn: 83719
 2009-10-10 19:00:55 +00:00
Chris Lattner
3c9d2553e9 remove some dead passes 
llvm-svn: 83717
 2009-10-10 18:40:48 +00:00
Chris Lattner
42f4178529 checkpoint. 
llvm-svn: 83716
 2009-10-10 18:33:13 +00:00
Chris Lattner
1f970dea03 fix broken anchors. 
llvm-svn: 83715
 2009-10-10 18:26:06 +00:00
Chris Lattner
0561804097 use a typedef instead of spelling out an insane type. Yay for auto someday. 
llvm-svn: 83707
 2009-10-10 09:09:20 +00:00
Chris Lattner
75e5de9243 Change jump threading to use the new SSAUpdater class instead of 
DemoteRegToStack.  This makes it more efficient (because it isn't
creating a ton of load/stores that are eventually removed by a later
mem2reg), and more slightly more effective (because those load/stores
don't get in the way of threading).

llvm-svn: 83706
 2009-10-10 09:05:58 +00:00
Chris Lattner
9c5aa00411 Implement an efficient and fully general SSA update mechanism that 
works on unstructured CFGs.  This implements PR217, our oldest open PR.

llvm-svn: 83705
 2009-10-10 09:04:27 +00:00
Chris Lattner
54621efc37 add some WeakVH::operator='s. Without these, assigning 
a Value* to a WeakVH was constructing a temporary WeakVH
(due to the implicit assignment operator).  This avoids
that cost.

llvm-svn: 83704
 2009-10-10 08:27:29 +00:00
Chris Lattner
70895041a7 change some static_cast into cast, pointed out by Gabor. 
llvm-svn: 83703
 2009-10-10 08:01:27 +00:00
Chris Lattner
76985b43e3 add a version of PHINode::getIncomingBlock that takes a raw 
Use, to complement the version that takes a use_iterator.

llvm-svn: 83702
 2009-10-10 07:42:42 +00:00
Chris Lattner
317eb8ff20 random tidying 
llvm-svn: 83701
 2009-10-10 06:22:45 +00:00
Dan Gohman
605f85e0e6 Create a new InstrEmitter class for translating SelectionDAG nodes 
into MachineInstrs. This is mostly just moving the code from
ScheduleDAGSDNodesEmit.cpp into a new class. This decouples MachineInstr
emitting from scheduling.

llvm-svn: 83699
 2009-10-10 01:32:21 +00:00
Dan Gohman
3b025b778b Make getMachineNode return a MachineSDNode* instead of a generic SDNode* 
since it won't do any folding. This will help avoid some inconvenient
casting.

llvm-svn: 83698
 2009-10-10 01:29:16 +00:00
Dan Gohman
84a61978de Remove a no-longer-necessary #include. 
llvm-svn: 83697
 2009-10-10 00:36:09 +00:00
Dan Gohman
177b8de981 Replace X86's CanRematLoadWithDispOperand by calling the target-independent 
MachineInstr::isInvariantLoad instead, which has the benefit of being
more complete.

llvm-svn: 83696
 2009-10-10 00:34:18 +00:00
Dan Gohman
b98d95f4f9 Fix a missing initialization of PostRAScheduler's AA member. 
llvm-svn: 83695
 2009-10-10 00:15:38 +00:00
Dan Gohman
5141b26ffa The ScheduleDAG framework now requires an AliasAnalysis argument, though 
it isn't needed in the ScheduleDAGSDNodes schedulers.

llvm-svn: 83691
 2009-10-09 23:33:48 +00:00
Dan Gohman
b535009219 Update this test; the code is the same but it gets counted as one 
fewer remat.

llvm-svn: 83690
 2009-10-09 23:31:04 +00:00
Dan Gohman
168ae2c7d5 Mark the LDR instruction with isReMaterializable, as it is rematerializable 
when loading from an invariant memory location.

llvm-svn: 83688
 2009-10-09 23:28:27 +00:00
Dan Gohman
5bfc2416fe Factor out LiveIntervalAnalysis' code to determine whether an instruction 
is trivially rematerializable and integrate it into
TargetInstrInfo::isTriviallyReMaterializable. This way, all places that
need to know whether an instruction is rematerializable will get the
same answer.

This enables the useful parts of the aggressive-remat option by
default -- using AliasAnalysis to determine whether a memory location
is invariant, and removes the questionable parts -- rematting operations
with virtual register inputs that may not be live everywhere.

llvm-svn: 83687
 2009-10-09 23:27:56 +00:00
Devang Patel
c97c44b584 Extract scope information from the variable itself, instead of relying on alloca or llvm.dbg.declare location. 
While recording beginning of a function, use scope info from the first location entry instead of just relying on first location entry itself.

llvm-svn: 83684
 2009-10-09 22:42:28 +00:00
Jeffrey Yasskin
7edab17bef ExecutionEngine::clearGlobalMappingsFromModule failed to remove reverse 
mappings, which could cause errors and assert-failures.  This patch fixes that,
adds a test, and refactors the global-mapping-removal code into a single place.

llvm-svn: 83678
 2009-10-09 22:10:27 +00:00
Dan Gohman
14aaff93fc Add a const qualifier. 
llvm-svn: 83677
 2009-10-09 22:09:05 +00:00
Dale Johannesen
7691b73da0 Use names instead of numbers for some of the magic 
constants used in inlining heuristics (especially
those used in more than one file).  No functional change.

llvm-svn: 83675
 2009-10-09 21:42:02 +00:00
Kevin Enderby
430e05312d Added another bit of the ARM target assembler to llvm-mc to parse register 
lists.  Changed ARMAsmParser::MatchRegisterName to return -1 instead of 0 on
errors so 0-15 values could be returned as register numbers.  Also added the
rest of the arm register names to the currently hacked up version to allow more
testing.  Some changes to ARMAsmParser::ParseOperand to give different errors
for things not yet supported and some additions to the hacked
ARMAsmParser::MatchInstruction to allow more testing for now.

llvm-svn: 83673
 2009-10-09 21:12:28 +00:00
Dan Gohman
3005d6bf9f isTriviallyReMaterializable checks the 
TargetInstrDesc::isRematerializable flag, so it isn't necessary to do
this check in its callers.

llvm-svn: 83671
 2009-10-09 21:02:10 +00:00
Dan Gohman
f2ae9c6220 Fix the x86 test-shrink optimization so that it doesn't shrink comparisons 
when one of the bits being tested would end up being the sign bit in the
narrower type, and a signed comparison is being performed, since this would
change the result of the signed comparison. This fixes PR5132.

llvm-svn: 83670
 2009-10-09 20:35:19 +00:00
Bob Wilson
011e458c11 Merge a bunch of NEON tests into larger files so they run faster. 
llvm-svn: 83667
 2009-10-09 20:20:54 +00:00
Dan Gohman
4fe1a982ed Add basic infrastructure and x86 support for preserving MachineMemOperand 
information when unfolding memory references.

llvm-svn: 83656
 2009-10-09 18:10:05 +00:00
Devang Patel
a772046766 Check invalid debug info for enums. This may happen when underlyng enum is optimized away. Eventually DwarfChecker will clean this up during llvm verification stage. 
llvm-svn: 83655
 2009-10-09 17:51:49 +00:00
Jim Grosbach
809d1bfdd3 when previous scratch register is killed, flag the value as no longer tracking 
llvm-svn: 83653
 2009-10-09 17:33:33 +00:00
Bob Wilson
de71518edb Convert some ARM tests with lots of greps to use FileCheck. 
llvm-svn: 83651
 2009-10-09 17:20:46 +00:00
Dan Gohman
731afb3b6e Revert r83606 and add comments explaining why it isn't safe. 
llvm-svn: 83649
 2009-10-09 16:35:06 +00:00
Nicolas Geoffray
a9998e2133 As it turns out, the bug fixes in GC codegen did not make it 
to llvm-2.6. Remove the precise garbage collection feature.

llvm-svn: 83638
 2009-10-09 13:17:57 +00:00
Nicolas Geoffray
aecce285aa 80-columns! 
llvm-svn: 83628
 2009-10-09 10:17:14 +00:00
Nicolas Geoffray
672319a893 Add initial information on VMKit. 
llvm-svn: 83627
 2009-10-09 10:13:08 +00:00
Chris Lattner
623acb737f more random updates. 
llvm-svn: 83625
 2009-10-09 06:36:25 +00:00
Evan Cheng
ec853b9ba5 Give Dan and my recent changes, machine LICM is now code size neutral. 
llvm-svn: 83624
 2009-10-09 06:31:25 +00:00
Chris Lattner
7eb545c437 checkpoint. 
llvm-svn: 83623
 2009-10-09 06:24:25 +00:00
Evan Cheng
439044f330 Fix a logic error that caused non-rematable loop invariants loads to be licm'ed out of loop. 
llvm-svn: 83622
 2009-10-09 06:21:52 +00:00
Chris Lattner
aa8ee121c3 checkpoint. 
llvm-svn: 83621
 2009-10-09 05:55:04 +00:00
Mikhail Glushenkov
a3577841cf Slight rewording. 
llvm-svn: 83620
 2009-10-09 05:45:38 +00:00
Mikhail Glushenkov
ec9baa8e47 Omit the 'out_file_index != -1' check when possible. 
llvm-svn: 83619
 2009-10-09 05:45:21 +00:00
Mikhail Glushenkov
1b7df9c598 Use llvm-as only for compiling .ll -> .bc. 
llc can compile .ll files directly these days.

llvm-svn: 83618
 2009-10-09 05:45:01 +00:00
Bob Wilson
d48cacb92f Commit one last NEON test to use FileCheck. That's all of them now! 
llvm-svn: 83617
 2009-10-09 05:31:56 +00:00