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10258 Commits

Author SHA1 Message Date
Chris Lattner
df848440d1 add a twine version of MCContext::GetOrCreateSymbol. 
llvm-svn: 84561
 2009-10-19 22:49:00 +00:00
Jim Grosbach
c813cf9649 Adjust the scavenge register spilling to allow the target to choose an 
appropriate restore location for the spill as well as perform the actual
save and restore.

The Thumb1 target uses this to make sure R12 is not clobbered while a spilled
scavenger register is live there.

llvm-svn: 84554
 2009-10-19 22:27:30 +00:00
Jeffrey Yasskin
fdb36c1a29 Clean up the JITResolver stub/callsite<->function maps. 
The JITResolver maps Functions to their canonical stubs and all callsites for
lazily-compiled functions to their target Functions. To make Function
destruction work, I'm going to need to remove all callsites on destruction, so
this patch also adds the reverse mapping for that.

There was an incorrect assumption in here that the only stub for a function
would be the one caused by needing to lazily compile it, while x86-64 far calls
and dlsym-stubs could also cause such stubs, but I didn't look for a test case
that the assumption broke.

This also adds DenseMapInfo<AssertingVH> so I can use DenseMaps instead of
std::maps.

llvm-svn: 84522
 2009-10-19 18:49:59 +00:00
Chris Lattner
1971f7636b various cleanups. 
llvm-svn: 84471
 2009-10-19 07:10:59 +00:00
Evan Cheng
80017908bc Spill slots cannot alias. 
llvm-svn: 84432
 2009-10-18 19:58:47 +00:00
Evan Cheng
e921ebe70d -Revert parts of 84326 and 84411. Distinquishing between fixed and non-fixed 
stack slots and giving them different PseudoSourceValue's did not fix the
problem of post-alloc scheduling miscompiling llvm itself.
- Apply Dan's conservative workaround by assuming any non fixed stack slots can
alias other memory locations. This means a load from spill slot #1 cannot 
move above a store of spill slot #2. 
- Enable post-alloc scheduling for x86 at optimization leverl Default and above.

llvm-svn: 84424
 2009-10-18 18:16:27 +00:00
Chris Lattner
7150e04bf2 punctuate properly 
llvm-svn: 84407
 2009-10-18 05:08:07 +00:00
Chris Lattner
6077ca46bb remove the IndMemRemPass, which only made sense for when malloc/free were intrinsic 
instructions.

llvm-svn: 84404
 2009-10-18 05:02:09 +00:00
Chris Lattner
8851d6cf9c add function passes for printing various dominator datastructures 
accessible through opt.  Patch by Tobias Grosser!

llvm-svn: 84397
 2009-10-18 04:10:40 +00:00
Chris Lattner
f202995415 make DOTGraphTraits public, patch by Tobias Grosser! 
llvm-svn: 84396
 2009-10-18 04:09:11 +00:00
Chris Lattner
634b65ee79 add nodes_begin/end/iterator for dominfo, patch by Tobias Grosser! 
llvm-svn: 84395
 2009-10-18 04:05:53 +00:00
Eric Christopher
41d8dc960b More warnings patrol: Another unused argument and more implicit 
conversions.

llvm-svn: 84382
 2009-10-17 23:56:18 +00:00
Nick Lewycky
4f6c397742 Fix test/Bindings/Ocaml/vmcore.ml. When IRBuilder::CreateMalloc was removed, 
LLVMBuildMalloc was reimplemented but with the bug that it didn't insert the
resulting instruction.

llvm-svn: 84374
 2009-10-17 23:52:26 +00:00
Daniel Dunbar
b67b5bb0b1 Move UnescapeString to a static function for its sole client; its inefficient and broken. 
llvm-svn: 84358
 2009-10-17 20:43:42 +00:00
Daniel Dunbar
d537c7d394 Remove llvm::EscapeString, raw_ostream::write_escaped is much faster. 
llvm-svn: 84357
 2009-10-17 20:43:29 +00:00
Daniel Dunbar
5aa3eebc5d Add raw_ostream::write_escaped, for writing escaped strings. 
llvm-svn: 84355
 2009-10-17 20:43:08 +00:00
Mikhail Glushenkov
e29aaa858c First draft of the OptionPreprocessor. 
More to follow...

llvm-svn: 84352
 2009-10-17 20:09:29 +00:00
Daniel Dunbar
0107265e33 Move StringMap's string has function into StringExtras.h 
llvm-svn: 84344
 2009-10-17 18:21:06 +00:00
Evan Cheng
5ab1ccfaee Distinquish stack slots from other stack objects. They (and fixed objects) get FixedStack PseudoSourceValues. 
llvm-svn: 84326
 2009-10-17 09:20:14 +00:00
Evan Cheng
6a4b23e001 Re-arrange some fields. 
llvm-svn: 84324
 2009-10-17 08:57:09 +00:00
Daniel Dunbar
89e9f2b1c1 Add another required #include for freestanding .h files. 
llvm-svn: 84322
 2009-10-17 08:12:36 +00:00
Evan Cheng
d941e8b23a Revert 84315 for now. Re-thinking the patch. 
llvm-svn: 84321
 2009-10-17 07:53:04 +00:00
Evan Cheng
12dd96e2f8 Rename getFixedStack to getStackObject. The stack objects represented are not 
necessarily fixed. Only those will negative frame indices are "fixed."

llvm-svn: 84315
 2009-10-17 06:22:26 +00:00
Daniel Dunbar
65c6507ca8 Add required #includes for freestanding .h files. 
llvm-svn: 84302
 2009-10-17 03:28:07 +00:00
Victor Hernandez
a25a2890fa Remove MallocInst from LLVM Instructions. 
llvm-svn: 84299
 2009-10-17 01:18:07 +00:00
Dan Gohman
2e25e88d46 Add a splice member function which accepts a range instead of a 
single iterator.

llvm-svn: 84294
 2009-10-17 00:28:24 +00:00
Victor Hernandez
4d7283f82c Autoupgrade malloc insts to malloc calls. 
Update testcases that rely on malloc insts being present.

Also prematurely remove MallocInst handling from IndMemRemoval and RaiseAllocations to help pass tests in this incremental step.

llvm-svn: 84292
 2009-10-17 00:00:19 +00:00
Evan Cheng
e1fbdc5244 Change createPostRAScheduler so it can be turned off at llc -O1. 
llvm-svn: 84273
 2009-10-16 21:06:15 +00:00
Evan Cheng
96e3c797d1 Add a CodeGenOpt::Less level to match -O1. It'll be used by clients which do not want post-regalloc scheduling. 
llvm-svn: 84272
 2009-10-16 21:02:20 +00:00
Duncan Sands
4cde5474aa Strip trailing white space. 
llvm-svn: 84256
 2009-10-16 15:20:13 +00:00
Chris Lattner
5d2b384837 Add half precision floating point support (float16) to APFloat, 
patch by Peter Johnson! (PR5195)

llvm-svn: 84239
 2009-10-16 02:13:51 +00:00
Chris Lattner
87bcf3b242 add haiku support, patch by Paul Davey! 
llvm-svn: 84238
 2009-10-16 02:06:30 +00:00
Daniel Dunbar
4943610506 Minor formatting tweaks. 
llvm-svn: 84235
 2009-10-16 01:58:15 +00:00
Daniel Dunbar
0df659c00b MC: Switch assembler API to using MCExpr instead of MCValue. 
llvm-svn: 84234
 2009-10-16 01:58:03 +00:00
Daniel Dunbar
022b59a0b5 MC: Remove unneeded context argument to MCExpr::Evaluate*. 
llvm-svn: 84233
 2009-10-16 01:57:52 +00:00
Daniel Dunbar
6b7edc035b MC: Move assembler variable values from MCContext to MCSymbol. 
llvm-svn: 84229
 2009-10-16 01:33:57 +00:00
Daniel Dunbar
c5165c4258 MC: Switch MCContext value table to storing MCExprs. 
llvm-svn: 84228
 2009-10-16 01:33:11 +00:00
Victor Hernandez
603a11de4e Fix bug where array malloc with unexpected computation of the size argument resulted in MallocHelper 
identifying the malloc as a non-array malloc.  This broke GlobalOpt's optimization of stores of mallocs 
to global variables.

The fix is to classify malloc's into 3 categories:
1. non-array mallocs
2. array mallocs whose array size can be determined
3. mallocs that cannot be determined to be of type 1 or 2 and cannot be optimized

getMallocArraySize() returns NULL for category 3, and all users of this function must avoid their 
malloc optimization if this function returns NULL.

Eventually, currently unexpected codegen for computing the malloc's size argument will be supported in
isArrayMalloc() and getMallocArraySize(), extending malloc optimizations to those examples.

llvm-svn: 84199
 2009-10-15 20:14:52 +00:00
Jakob Stoklund Olesen
311774b780 Move Blackfin intrinsics into the Target/Blackfin directory. 
llvm-svn: 84194
 2009-10-15 18:50:52 +00:00
Jakob Stoklund Olesen
2fe044dcb7 Clean up TargetIntrinsicInfo API. Add pure virtual methods. 
llvm-svn: 84192
 2009-10-15 18:49:26 +00:00
Eric Christopher
fd8bbb9270 One more iteration here and a yet better way to solve it. 
llvm-svn: 84150
 2009-10-14 22:14:18 +00:00
Eric Christopher
11e07e9ef1 Fix the unused argument problem here a different way - cast to void. 
llvm-svn: 84147
 2009-10-14 21:45:49 +00:00
Dan Gohman
ae76dc48d6 Delete bogus semicolons. 
llvm-svn: 84132
 2009-10-14 20:39:01 +00:00
Eric Christopher
a7407c0921 Remove a bunch of unused arguments from functions, silencing a 
warning.

llvm-svn: 84130
 2009-10-14 20:28:33 +00:00
Devang Patel
95b6efe972 Add copyMD to copy metadata from one instruction to another instruction. 
llvm-svn: 84113
 2009-10-14 17:02:49 +00:00
Duncan Sands
4fcf6123dd I don't see any point in having both eh.selector.i32 and eh.selector.i64, 
so get rid of eh.selector.i64 and rename eh.selector.i32 to eh.selector.
Likewise for eh.typeid.for.  This aligns us with gcc, which always uses a
32 bit value for the selector on all platforms.  My understanding is that
the register allocator used to assert if the selector intrinsic size didn't
match the pointer size, and this was the reason for introducing the two
variants.  However my testing shows that this is no longer the case (I
fixed some bugs in selector lowering yesterday, and some more today in the
fastisel path; these might have caused the original problems).

llvm-svn: 84106
 2009-10-14 16:11:37 +00:00
Edward O'Callaghan
62d800b380 Undo pthread patch from rev. 83930 & 83823. Credit to Paul Davey. 
llvm-svn: 84083
 2009-10-14 11:12:33 +00:00
Dan Gohman
86970a6ea6 Fix resetCachedCostInfo to reset all of the cost information, instead of 
just the NumBlocks field.

llvm-svn: 84056
 2009-10-13 23:36:36 +00:00
Devang Patel
72f708ec2f s/DebugLoc.CompileUnit/DebugLoc.Scope/g 
s/DebugLoc.InlinedLoc/DebugLoc.InlinedAtLoc/g

llvm-svn: 84054
 2009-10-13 23:28:53 +00:00
Douglas Gregor
1fd6052176 Add is_same type trait 
llvm-svn: 84029
 2009-10-13 21:17:00 +00:00
Duncan Sands
d4a35e9f36 Introduce new convenience methods for sign extending or 
truncating an SDValue (depending on whether the target
type is bigger or smaller than the value's type); or zero
extending or truncating it.  Use it in a few places (this
seems to be a popular operation, but I only modified cases
of it in SelectionDAGBuild).  In particular, the eh_selector
lowering was doing this wrong due to a repeated rather than
inverted test, fixed with this change.

llvm-svn: 84027
 2009-10-13 21:04:12 +00:00
Dale Johannesen
7db511a23e Add an "msasm" flag to inline asm as suggested in PR 5125. 
A little ugliness is accepted to keep the binary file format
compatible.  No functional change yet.

llvm-svn: 84020
 2009-10-13 20:46:56 +00:00
Dan Gohman
665e336185 Split code not specific to Function inlining out into a separate class, 
named CodeMetrics. Move it to be a non-nested class. Rename RegionInfo
back to FunctionInfo.

llvm-svn: 84013
 2009-10-13 19:58:07 +00:00
Ted Kremenek
abbc32c042 Provide a mode for ImmutableMap/ImmutableSet to not automatically canonicalize the internal functional AVL trees. This should speedup clients that use ImmutableMap/ImmutableSet but don't require fast comparisons of maps. 
llvm-svn: 84010
 2009-10-13 19:08:10 +00:00
Dan Gohman
18cdd7ef1b Move the InlineCost code from Transforms/Utils to Analysis. 
llvm-svn: 83998
 2009-10-13 18:30:07 +00:00
Dan Gohman
f277c57aad Start refactoring the inline cost estimation code so that it can be used 
for purposes other than inlining.

llvm-svn: 83997
 2009-10-13 18:24:11 +00:00
Jeffrey Yasskin
3eacbf419d Make the ExecutionEngine automatically remove global mappings on when their 
GlobalValue is destroyed.  Function destruction still leaks machine code and
can crash on leaked stubs, but this is some progress.

llvm-svn: 83987
 2009-10-13 17:42:08 +00:00
Devang Patel
729589a539 Copy metadata when value is RAUW'd. It is debatable whether this is the right approach for custom metadata data in general. However, right now the only custom data user, "dbg", expects this behavior while FE is constructing llvm IR with debug info. 
llvm-svn: 83977
 2009-10-13 17:00:54 +00:00
Duncan Sands
73a4348b00 The eh.exception intrinsic only reads from memory, it doesn't 
write to it.

llvm-svn: 83963
 2009-10-13 09:24:02 +00:00
Nick Lewycky
ab1dbddc83 Add new "memory use marker" intrinsics. These indicate lifetimes and invariant 
sections of memory objects.

llvm-svn: 83953
 2009-10-13 07:03:23 +00:00
Chris Lattner
8fbbd25816 remove dead header. 
llvm-svn: 83943
 2009-10-13 05:33:26 +00:00
Dan Gohman
f9067da535 Add a ceilLogBase2 function to APInt. 
llvm-svn: 83932
 2009-10-13 01:49:02 +00:00
Edward O'Callaghan
eb42ded22c Regenerate configure for rev. 83823 putback. 
llvm-svn: 83930
 2009-10-13 01:01:38 +00:00
Devang Patel
21a7babc56 Enable "debug info attached to an instruction" mode. 
llvm-svn: 83925
 2009-10-12 23:22:09 +00:00
Dale Johannesen
38c9b68ccf Revert the kludge in 76703. I got a clean 
bootstrap of FSF-style PPC, so there is some
reason to believe the original bug (which was
never analyzed) has been fixed, probably by
82266.

llvm-svn: 83871
 2009-10-12 18:49:00 +00:00
Jeffrey Yasskin
7d85d5a366 Fix http://llvm.org/PR5160, to let CallbackVHs modify other ValueHandles on the 
same Value without breaking things.

llvm-svn: 83861
 2009-10-12 17:43:32 +00:00
Dan Gohman
44c9c11439 Delete some obsolete declarations. 
llvm-svn: 83856
 2009-10-12 16:43:44 +00:00
Chris Lattner
b2e0e6c46b add some more hooks to the C bindings, patch by Kenneth Uildriks! 
llvm-svn: 83821
 2009-10-12 04:01:02 +00:00
Edward O'Callaghan
af49208035 Fix LLVM CMake build system so that it may now work on Solaris and AuroraUX. 
llvm-svn: 83819
 2009-10-12 04:00:11 +00:00
Nick Lewycky
9d708ff741 Fix typo. 
llvm-svn: 83780
 2009-10-11 18:53:09 +00:00
Nick Lewycky
a958e6eedf Fix typo. 
llvm-svn: 83779
 2009-10-11 18:47:33 +00:00
Chris Lattner
2a0366af9e add a helper for matching "1". 
llvm-svn: 83760
 2009-10-11 07:51:25 +00:00
Chris Lattner
a9bbfdf699 there is no need to run mem2reg after jump threading at LTO time now. 
llvm-svn: 83753
 2009-10-11 04:17:33 +00:00
Chris Lattner
969d1df7ba fix a bunch of bad formatting, delete the dead 
ConstantInt::TheTrueVal/TheFalseVal members.

llvm-svn: 83752
 2009-10-11 04:03:22 +00:00
Chris Lattner
0aa320ae4d add a simple helper method. 
llvm-svn: 83745
 2009-10-10 23:41:48 +00:00
Chris Lattner
acf73d9839 add ability for clients of SSAUpdater to find out about the 
PHI nodes inserted.

llvm-svn: 83744
 2009-10-10 23:15:24 +00:00
Chris Lattner
db4d523cca add the ability to get a rewritten value from the middle of a block, 
not just at the end.  Add a big comment explaining when this could
be useful (which never happens for jump threading).

llvm-svn: 83741
 2009-10-10 23:00:11 +00:00
Chris Lattner
9899ce267c rename GetValueInBlock -> GetValueAtEndOfBlock to better reflect 
what it does.

llvm-svn: 83740
 2009-10-10 22:41:58 +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
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
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
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
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
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
Mikhail Glushenkov
59c2ae922b Raise the limit on built-in plugins in llvmc to 10. 
llvm-svn: 83614
 2009-10-09 04:15:52 +00:00
Evan Cheng
f852810de8 Indentation. 
llvm-svn: 83607
 2009-10-09 00:57:38 +00:00
Dan Gohman
4cdd530887 Add the ability to track HasNSW and HasNUW on more kinds of SCEV expressions. 
llvm-svn: 83601
 2009-10-09 00:10:36 +00:00
Bob Wilson
72c8f63e50 Add a SelectionDAG getTargetInsertSubreg convenience function, 
similar to getTargetExtractSubreg.

llvm-svn: 83564
 2009-10-08 18:49:46 +00:00
Dan Gohman
68e044e81a Add a form of addPreserved which takes a string argument, to allow passes 
to declare that they preserve other passes without needing to pull in
additional header file or library dependencies. Convert MachineFunctionPass
and CodeGenLICM to make use of this.

llvm-svn: 83555
 2009-10-08 17:00:02 +00:00
Chris Lattner
41b5fd5218 remove LoopVR pass. According to Nick: 
"LoopVR's logic was copied into ScalarEvolution::getUnsignedRange and 
::getSignedRange. Please delete LoopVR."

llvm-svn: 83531
 2009-10-08 06:42:44 +00:00
Jim Grosbach
a3e1149941 Re-enable register scavenging in Thumb1 by default. 
llvm-svn: 83521
 2009-10-08 01:46:59 +00:00
Jim Grosbach
cb905d28a8 reverting thumb1 scavenging default due to test failure while I figure out what's up. 
llvm-svn: 83501
 2009-10-07 22:49:41 +00:00
Chris Lattner
41e4cd7ef4 second half of lazy liveness removal. 
llvm-svn: 83500
 2009-10-07 22:49:30 +00:00