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* Add two new record types to the blockinfo block:Chris Lattner2009-04-262-6/+36
| | | | | | | | | | BLOCKNAME and SETRECORDNAME. This allows a bitcode file to be self describing with pretty names for records and blocks in addition to numbers. This enhances llvm-bcanalyzer to use this to print prettily. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70165 91177308-0d34-0410-b5e6-96231b3b80d8
* make BitstreamCursor's copyable and assignable.Chris Lattner2009-04-261-2/+38
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70159 91177308-0d34-0410-b5e6-96231b3b80d8
* Make a major API change to BitstreamReader: split all the readingChris Lattner2009-04-262-110/+141
| | | | | | | | | | state out of the BitstreamReader class into a BitstreamCursor class. Doing this allows the client to have multiple cursors into the same file, each with potentially different live block stacks and abbreviation records. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70157 91177308-0d34-0410-b5e6-96231b3b80d8
* I cast, therefore I think I know what I'm doing.Bill Wendling2009-04-261-4/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70151 91177308-0d34-0410-b5e6-96231b3b80d8
* Use uint64_t instead of unsigned.Bill Wendling2009-04-261-4/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70148 91177308-0d34-0410-b5e6-96231b3b80d8
* revert an incorrect patch. This causes crashes all over the place on aChris Lattner2009-04-261-6/+4
| | | | | | | 64-bit build. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70147 91177308-0d34-0410-b5e6-96231b3b80d8
* Suppress warnings about conversion shortening 64-bit to 32-bit.Bill Wendling2009-04-261-4/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70138 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a new TypeBuilder helper class, which eases making LLVM IR types.Chris Lattner2009-04-251-0/+463
| | | | | | | Patch by Jeffrey Yasskin! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70084 91177308-0d34-0410-b5e6-96231b3b80d8
* improve documentation around memory lifetimes, Chris Lattner2009-04-251-5/+17
| | | | | | | patch by Jeffrey Yasskin! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70083 91177308-0d34-0410-b5e6-96231b3b80d8
* Use intptr_t.Bill Wendling2009-04-251-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70076 91177308-0d34-0410-b5e6-96231b3b80d8
* size() should return a size_t; avoids a warning for 64 bit machines.Mon P Wang2009-04-251-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70072 91177308-0d34-0410-b5e6-96231b3b80d8
* DenseMap.h needs <new> because it explicitly calls operator new/delete.Chris Lattner2009-04-251-0/+1
| | | | | | | Patch by John McCall! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70068 91177308-0d34-0410-b5e6-96231b3b80d8
* Do not share a single unknown val# for all the live ranges merged into a ↵Evan Cheng2009-04-251-4/+0
| | | | | | physical sub-register live interval. When coalescer is merging in clobbered virtaul register live interval into a physical register live interval, give each virtual register val# a separate val# in the physical register live interval. Otherwise, the coalescer would have lost track of the definitions information it needs to make correct coalescing decisions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70026 91177308-0d34-0410-b5e6-96231b3b80d8
* Add LTO_SYMBOL_DEFINITION_WEAKUNDEF, use that on the gold plugin.Rafael Espindola2009-04-241-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69972 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert 69952. Causes testsuite failures on linux x86-64.Rafael Espindola2009-04-244-38/+16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69967 91177308-0d34-0410-b5e6-96231b3b80d8
* fix a typo noticed by duncanChris Lattner2009-04-241-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69962 91177308-0d34-0410-b5e6-96231b3b80d8
* "I got annoyed at the compiler warnings from ConstantInt::get(Ty, -1,Chris Lattner2009-04-241-0/+9
| | | | | | | | | | | | true), and casts make me nervous and are verbose anyway, so here's a ConstantInt::getSigned(Ty, int64_t) method. Just overloading ConstantInt::get() to take an int64_t too would cause ambiguous overload errors." Patch by Jeffrey Yasskin! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69958 91177308-0d34-0410-b5e6-96231b3b80d8
* PR2957Nate Begeman2009-04-244-16/+38
| | | | | | | | | | | | | | | ISD::VECTOR_SHUFFLE now stores an array of integers representing the shuffle mask internal to the node, rather than taking a BUILD_VECTOR of ConstantSDNodes as the shuffle mask. A value of -1 represents UNDEF. In addition to eliminating the creation of illegal BUILD_VECTORS just to represent shuffle masks, we are better about canonicalizing the shuffle mask, resulting in substantially better code for some classes of shuffles. A clean up of x86 shuffle code, and some canonicalizing in DAGCombiner is next. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69952 91177308-0d34-0410-b5e6-96231b3b80d8
* Change SCEVExpander's expandCodeFor to provide more flexibilityDan Gohman2009-04-231-1/+11
| | | | | | | | | | | | with the persistent insertion point, and change IndVars to make use of it. This fixes a bug where IndVars was holding on to a stale insertion point and forcing the SCEVExpander to continue to use it. This fixes PR4038. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69892 91177308-0d34-0410-b5e6-96231b3b80d8
* Use BasicBlock::iterator instead of Instruction* for insert points,Dan Gohman2009-04-221-5/+6
| | | | | | | to better handle inserting instructions at the end of a block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69807 91177308-0d34-0410-b5e6-96231b3b80d8
* Make SCEVExpanders private methods private, instead of protected.Dan Gohman2009-04-221-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69806 91177308-0d34-0410-b5e6-96231b3b80d8
* Add caching of predecessor counts as well as predecessors themselves.Owen Anderson2009-04-221-0/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69791 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix for PR3946, in which SmallVector could behave strangely in corner cases.Owen Anderson2009-04-221-2/+2
| | | | | | | Patch by Peter Johnson. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69785 91177308-0d34-0410-b5e6-96231b3b80d8
* De-pImpl-ify ScalarEvolution. The pImpl pattern doesn't provide muchDan Gohman2009-04-211-7/+109
| | | | | | | | practical benefit in the case of ScalarEvolution, and it's otherwise a nuisance. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69749 91177308-0d34-0410-b5e6-96231b3b80d8
* It has finally happened. Spiller is now using live interval info.Evan Cheng2009-04-211-3/+3
| | | | | | | This fixes a very subtle bug. vr defined by an implicit_def is allowed overlap with any register since it doesn't actually modify anything. However, if it's used as a two-address use, its live range can be extended and it can be spilled. The spiller must take care not to emit a reload for the vn number that's defined by the implicit_def. This is both a correctness and performance issue. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69743 91177308-0d34-0410-b5e6-96231b3b80d8
* Factor out a common base class from SCEVTruncateExpr, SCEVZeroExtendExpr,Dan Gohman2009-04-211-43/+33
| | | | | | | and SCEVSignExtendExpr. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69649 91177308-0d34-0410-b5e6-96231b3b80d8
* Introduce encapsulation for ScalarEvolution's TargetData object, and refactorDan Gohman2009-04-212-9/+22
| | | | | | | the code to minimize dependencies on TargetData. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69644 91177308-0d34-0410-b5e6-96231b3b80d8
* Convert ScalarEvolution to use raw_ostream instead of OStream.Dan Gohman2009-04-212-19/+17
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69640 91177308-0d34-0410-b5e6-96231b3b80d8
* Move duplicated AddLiveIn function from X86 and ARM backends to be a methodBob Wilson2009-04-201-0/+5
| | | | | | | | in the MachineFunction class, renaming it to addLiveIn for consistency with the same method in MachineBasicBlock. Thanks for Anton for suggesting this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69615 91177308-0d34-0410-b5e6-96231b3b80d8
* Revise my previous change 68996 as suggested by Duncan.Bob Wilson2009-04-201-7/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69607 91177308-0d34-0410-b5e6-96231b3b80d8
* These bitfields were being miscompiled on someDuncan Sands2009-04-201-11/+27
| | | | | | | | | 64 bit platforms when building with optimization. So replace them by a hand-coded implementation. This fixes PR3822. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69597 91177308-0d34-0410-b5e6-96231b3b80d8
* Make all raw_ostreams support the tell() function.Douglas Gregor2009-04-201-0/+34
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69583 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix missing text in doxygen documentation.Nick Lewycky2009-04-191-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69529 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the SimpleTy enumerated type field from the MVTDuncan Sands2009-04-191-14/+8
| | | | | | | | | | value type union: this field was causing problems for some compilers on 64 bit systems, presumably because SimpleTy is 32 bits wide while the other fields are 64 bits wide. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69515 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't try to make BUILD_VECTOR operands have the sameDuncan Sands2009-04-181-1/+4
| | | | | | | | | | | | | | | | | | type as the vector element type: allow them to be of a wider integer type than the element type all the way through the system, and not just as far as LegalizeDAG. This should be safe because it used to be this way (the old type legalizer would produce such nodes), so backends should be able to handle it. In fact only targets which have legal vector types with an illegal promoted element type will ever see this (eg: <4 x i16> on ppc). This fixes a regression with the new type legalizer (vec_splat.ll). Also, treat SCALAR_TO_VECTOR the same as BUILD_VECTOR. After all, it is just a special case of BUILD_VECTOR. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69467 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a ScalarEvolution::getCouldNotCompute() function, and use itDan Gohman2009-04-181-0/+1
| | | | | | | instead of allocating and leaking new SCEVCouldNotCompute objects. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69452 91177308-0d34-0410-b5e6-96231b3b80d8
* Use more const qualifiers with SCEV interfaces.Dan Gohman2009-04-182-27/+27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69450 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a new LiveInterval::overlaps(). It checks if the live interval overlaps ↵Evan Cheng2009-04-181-0/+4
| | | | | | a range specified by [Start, End). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69434 91177308-0d34-0410-b5e6-96231b3b80d8
* Clean up formatting, remove trailing whitespace, fix comment typos andBob Wilson2009-04-171-6/+6
| | | | | | | punctuation. No functional changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69378 91177308-0d34-0410-b5e6-96231b3b80d8
* Delete an unused field.Dan Gohman2009-04-171-1/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69375 91177308-0d34-0410-b5e6-96231b3b80d8
* Use CallConvLower.h and TableGen descriptions of the calling conventionsBob Wilson2009-04-172-4/+47
| | | | | | | for ARM. Patch by Sandeep Patel. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69371 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a comment to describe LLVMMatchType.Bob Wilson2009-04-161-0/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69313 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach SCEVExpander::InsertCastOfTo to avoid creating inttoptr-of-ptrtointDan Gohman2009-04-161-2/+2
| | | | | | | and ptrtoint-of-inttoptr expressions. This fixes a regression in 300.twolf. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69293 91177308-0d34-0410-b5e6-96231b3b80d8
* Expand GEPs in ScalarEvolution expressions. SCEV expressions can nowDan Gohman2009-04-162-7/+12
| | | | | | | | | | | | | | | | | | | | | | have pointer types, though in contrast to C pointer types, SCEV addition is never implicitly scaled. This not only eliminates the need for special code like IndVars' EliminatePointerRecurrence and LSR's own GEP expansion code, it also does a better job because it lets the normal optimizations handle pointer expressions just like integer expressions. Also, since LLVM IR GEPs can't directly index into multi-dimensional VLAs, moving the GEP analysis out of client code and into the SCEV framework makes it easier for clients to handle multi-dimensional VLAs the same way as other arrays. Some existing regression tests show improved optimization. test/CodeGen/ARM/2007-03-13-InstrSched.ll in particular improved to the point where if-conversion started kicking in; I turned it off for this test to preserve the intent of the test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69258 91177308-0d34-0410-b5e6-96231b3b80d8
* If FastISel is run and it has known DebugLoc then use it.Devang Patel2009-04-161-0/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69253 91177308-0d34-0410-b5e6-96231b3b80d8
* Generalize one of the SelectionDAG::ReplaceAllUsesWith overloadsDan Gohman2009-04-152-9/+3
| | | | | | | | | to support replacing a node with another that has a superset of the result types. Use this instead of calling ReplaceAllUsesOfValueWith for each value. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69209 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow jumping to the end of a bitstream while readingDouglas Gregor2009-04-151-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69145 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't use "protected:" in classes that aren't intended to beDan Gohman2009-04-151-21/+0
| | | | | | | subclassed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69129 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix doxygen comment syntax.Dan Gohman2009-04-151-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69128 91177308-0d34-0410-b5e6-96231b3b80d8
* Move MachineRegisterInfo::setRegClass out of line.Dan Gohman2009-04-151-16/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69126 91177308-0d34-0410-b5e6-96231b3b80d8
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