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2008-04-13Merge LLVMBuilder and FoldingBuilder, callingDuncan Sands
the result IRBuilder. Patch by Dominic Hamon. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49604 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-12Drop ISD::MEMSET, ISD::MEMMOVE, and ISD::MEMCPY, which are not LegalDan Gohman
on any current target and aren't optimized in DAGCombiner. Instead of using intermediate nodes, expand the operations, choosing between simple loads/stores, target-specific code, and library calls, immediately. Previously, the code to emit optimized code for these operations was only used at initial SelectionDAG construction time; now it is used at all times. This fixes some cases where rep;movs was being used for small copies where simple loads/stores would be better. This also cleans up code that checks for alignments less than 4; let the targets make that decision instead of doing it in target-independent code. This allows x86 to use rep;movs in low-alignment cases. Also, this fixes a bug that resulted in the use of rep;stos for memsets of 0 with non-constant memory size when the alignment was at least 4. It's better to use the library in this case, which can be significantly faster when the size is large. This also preserves more SourceValue information when memory intrinsics are lowered into simple loads/stores. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49572 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-11Use of implicit_def is not part of live interval. Create empty intervals for ↵Evan Cheng
the uses when the live interval is being spilled. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49542 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-11improvements for IntrusiveRefCntPtr, patch by Mikhail GlushenkovChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49538 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-10Allow registers defined by implicit_def to be clobbered.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49512 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-10Fix a typo in a comment.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49502 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-09Make isVectorClearMaskLegal's operand list const.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49446 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-09Fix some minor errors in comments.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49445 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-09Add const qualifiers.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49443 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-09Update comments to use 2.0 syntax type names.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49442 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-09ConstantFP::get should be static.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49434 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-09Factor a bunch of functionality related to memcpy and memset transforms out of Owen Anderson
GVN and into its own pass. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49419 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-09Unbreak teh build.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49417 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-09add a version of ConstantFP::get that doesn't take a redundant Type* value,Chris Lattner
start migrating code over to use it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49413 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-09make ConstantFP::isExactlyValue work for long double as well.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49410 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-08Add CreateGetResult()Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49398 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-08Add multiple value return instruction constructor.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49374 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-08Convenience method for setting the nounwindDuncan Sands
attribute for a function. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49373 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-08Implement new llc flag -disable-required-unwind-tables.Dale Johannesen
Corresponds to -fno-unwind-tables (usually default in gcc). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49361 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-07Make getDirnameSep a static method (not part of Path's interface).Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49354 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-07Added method Path::getDirname().Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49352 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-07Added support for Create() calls that take an argument besides theSam Bishop
deserializer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49350 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-07Rename MemOperand to MachineMemOperand. This was suggested byDan Gohman
review feedback from Chris quite a while ago. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49348 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-07Add operator= implementations to SparseBitVector, allowing it to be used in ↵Owen Anderson
GVN. This results in both time and memory savings for GVN. For example, one testcase went from 10.5s to 6s with this patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49345 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-07Re-commit of the r48822, where the infinite looping problem discoveredRoman Levenstein
by Dan Gohman is fixed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49330 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-07Make GVN more memory efficient, particularly on code that contains a large ↵Owen Anderson
number of allocations, which GVN can't optimize anyways. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49329 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-06API changes for class Use size reduction, wave 1.Gabor Greif
Specifically, introduction of XXX::Create methods for Users that have a potentially variable number of Uses. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49277 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-05Forgot this.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49247 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-04If a value is cast to its own type, then the castDuncan Sands
is not needed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49210 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-04Make ExecutionEngine::updateGlobalMapping return the old mapping.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49206 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-03Add member template version of SerializeTrait<T>::Create that also acceptsTed Kremenek
an optional argument for us by T's Create method. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49169 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-03Special handling of zero-sized live intervals.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49167 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-03- Treat a live range defined by an implicit_def as a zero-sized one.Evan Cheng
- Eliminate an implicit_def when it's being spilled. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49166 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-03Start of a series of patches related to implicit_def.Evan Cheng
There is no point in creating a long live range defined by an implicit_def. Scheduler now duplicates implicit_def instruction for each of its uses. Therefore, if an implicit_def node has multiple uses, it will become a number of very short live ranges, rather than a long one. This will make coalescer's job easier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49164 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-03Backing out 48222 temporarily.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49124 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-02Iterators folloring a SmallVector erased element are invalidated soDavid Greene
don't access cached iterators from after the erased element. Re-apply 49056 with SmallVector support. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49106 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-02Now that I am told MachineRegisterInfo also tracks physical register uses / ↵Evan Cheng
defs, I can do away with the horribleness I introduced a while back. It's impossible to detect if there is any use of a physical register below an instruction (and before any def of the register) with some cheap book keeping. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49105 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-02Remove #include<map> from LiveVariables.h. Not referenced.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49099 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-02Add new file Support/DataFlow.h.Torok Edwin
It allows Use-Def and Def-Use relations to be treated as graphs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49088 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-02Add new CC lowering rule: provide a list of registers, which can be 'shadowed',Anton Korobeynikov
when some another register is used for argument passing. Currently is used on Win64. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49079 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-02Recommitting EH patch; this should answer most of theDale Johannesen
review feedback. -enable-eh is still accepted but doesn't do anything. EH intrinsics use Dwarf EH if the target supports that, and are handled by LowerInvoke otherwise. The separation of the EH table and frame move data is, I think, logically figured out, but either one still causes full EH info to be generated (not sure how to split the metadata correctly). MachineModuleInfo::needsFrameInfo is no longer used and is removed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49064 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-01Change the MemoryBuffer::getFile* methods to take just a pointer to theChris Lattner
start of a filename, not a filename+length. All clients can produce a null terminated name, and the system api's require null terminated strings anyway. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49041 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-01MappedFile is dead, remove it.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49035 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-01Stub out some sys::Path::MapInFilePages/UnMapFilePages methods.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49030 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-01change the archive stuff to use MemoryBuffer instead of mappedfile.Chris Lattner
MemoryBuffer is higher level and more closely matches the model needed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49029 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-01prune unneeded #includesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49028 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-01rewrite SourceFile to be in terms of MemoryBuffer, not MappedFile.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49027 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-01Make MappedFile::map return a const correct pointer, don't leak address ↵Chris Lattner
space on Unix platforms. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49026 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-01Remove the MappedFile::charBase member, rename base -> getBase() andChris Lattner
make getBase() return a const-correct pointer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49025 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-01add an accessor.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49023 91177308-0d34-0410-b5e6-96231b3b80d8