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* When ScalarEvolution is told to forget the trip count for a loop, haveDan Gohman2009-05-021-0/+5
| | | | | | | | it also forget any SCEVs associated with loop-header PHIs in the loop, as they may be dependent on trip count information. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70633 91177308-0d34-0410-b5e6-96231b3b80d8
* Drop the default assumption about alignment down to 2 bits from 3. This ↵Chris Lattner2009-05-011-2/+2
| | | | | | | | | apparently helps some problems on win32 platforms (PR4119) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70603 91177308-0d34-0410-b5e6-96231b3b80d8
* Prevent looping when DenseSet is abused.Stuart Hastings2009-05-011-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70572 91177308-0d34-0410-b5e6-96231b3b80d8
* Actually insert inserted instructions into the InsertedValues map.Dan Gohman2009-05-011-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70557 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an accessor method to allow clients to test if a given expressionDan Gohman2009-05-011-0/+6
| | | | | | | is associated with a SCEV expansion. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70556 91177308-0d34-0410-b5e6-96231b3b80d8
* Make SCEVExpander::addInsertedValue able to accept Values, not justDan Gohman2009-05-011-5/+5
| | | | | | | Instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70552 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix compilation for some targets other than x86.Argyrios Kyrtzidis2009-04-301-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70522 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a comment to refer to the section of the programmer's manual that ↵Stefanus Du Toit2009-04-301-0/+9
| | | | | | explains what the pointer tagging in Use is for. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70521 91177308-0d34-0410-b5e6-96231b3b80d8
* Make DebugLoc independent of DwarfWriter.Argyrios Kyrtzidis2009-04-303-20/+18
| | | | | | | | | -Replace DebugLocTuple's Source ID with CompileUnit's GlobalVariable* -Remove DwarfWriter::getOrCreateSourceID -Make necessary changes for the above (fix callsites, etc.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70520 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a mention of TypeBuilder to the programmer's manual, and clean up the classJeffrey Yasskin2009-04-301-6/+6
| | | | | | | comment a bit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70515 91177308-0d34-0410-b5e6-96231b3b80d8
* getCommonSubClass() - Calculate the largest common sub-class of two registerJakob Stoklund Olesen2009-04-301-0/+4
| | | | | | | | | classes. This is implemented as a function rather than a method on TargetRegisterClass because it is symmetric in its arguments. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70512 91177308-0d34-0410-b5e6-96231b3b80d8
* Add some comments, and tidy up some whitespace.Dan Gohman2009-04-301-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70510 91177308-0d34-0410-b5e6-96231b3b80d8
* Extend ScalarEvolution's getBackedgeTakenCount to be able toDan Gohman2009-04-301-4/+44
| | | | | | | | | | | | | compute an upper-bound value for the trip count, in addition to the actual trip count. Use this to allow getZeroExtendExpr and getSignExtendExpr to fold casts in more cases. This may eventually morph into a more general value-range analysis capability; there are certainly plenty of places where more complete value-range information would allow more folding. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70509 91177308-0d34-0410-b5e6-96231b3b80d8
* Make dataflow iteration possible on Value*, not only on User*: ↵Torok Edwin2009-04-301-4/+4
| | | | | | df_ext_iterator<Value*, SmallPtrSet<const Value*, 16> > git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70496 91177308-0d34-0410-b5e6-96231b3b80d8
* Oops! Missed a file in my last commit.Nick Lewycky2009-04-301-0/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70491 91177308-0d34-0410-b5e6-96231b3b80d8
* Move helper functions for optimizing division by constant into the APIntJay Foad2009-04-301-0/+25
| | | | | | class. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70488 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unused flags.Bill Wendling2009-04-301-3/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70459 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove LTO optimization level.Bill Wendling2009-04-291-2/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70445 91177308-0d34-0410-b5e6-96231b3b80d8
* Instead of passing in an unsigned value for the optimization level, use an enum,Bill Wendling2009-04-298-44/+64
| | | | | | | | which better identifies what the optimization is doing. And is more flexible for future uses. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70440 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for a character after a command line option. Like '-Os'.Bill Wendling2009-04-291-0/+23
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70437 91177308-0d34-0410-b5e6-96231b3b80d8
* MachineInstr::isRegTiedTo{Use,Def}Operand can safely be made const.Jakob Stoklund Olesen2009-04-291-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70408 91177308-0d34-0410-b5e6-96231b3b80d8
* Update comment, replace theoretically impossible check with an assert.Nate Begeman2009-04-291-7/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70391 91177308-0d34-0410-b5e6-96231b3b80d8
* Add directive to declare external globals.Sanjiv Gupta2009-04-291-0/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70379 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement review feedback for vector shuffle work.Nate Begeman2009-04-293-6/+20
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70372 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a public method called getAddressSpace() to the GlobalAddressSDNode.Sanjiv Gupta2009-04-291-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70366 91177308-0d34-0410-b5e6-96231b3b80d8
* Add some more doxygen comments to SCEVAddRec.Dan Gohman2009-04-291-1/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70354 91177308-0d34-0410-b5e6-96231b3b80d8
* The second part of the change from -fast to -O#. This changes the JIT to acceptBill Wendling2009-04-292-4/+4
| | | | | | | | an optimization level instead of a simple boolean telling it to generate code "fast" or the other type of "fast". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70347 91177308-0d34-0410-b5e6-96231b3b80d8
* Second attempt:Bill Wendling2009-04-297-39/+43
| | | | | | | | | | | | | Massive check in. This changes the "-fast" flag to "-O#" in llc. If you want to use the old behavior, the flag is -O0. This change allows for finer-grained control over which optimizations are run at different -O levels. Most of this work was pretty mechanical. The majority of the fixes came from verifying that a "fast" variable wasn't used anymore. The JIT still uses a "Fast" flag. I'll change the JIT with a follow-up patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70343 91177308-0d34-0410-b5e6-96231b3b80d8
* Correct comment.Bill Wendling2009-04-291-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70340 91177308-0d34-0410-b5e6-96231b3b80d8
* Move getMatchingSuperReg() out of coalescer and into TargetRegisterInfo.Evan Cheng2009-04-281-0/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70309 91177308-0d34-0410-b5e6-96231b3b80d8
* Initialized arrays can be in any address space.Sanjiv Gupta2009-04-281-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70297 91177308-0d34-0410-b5e6-96231b3b80d8
* Move getSubRegisterRegClass from ScheduleDagSDNodesEmit.cpp to a ↵Jakob Stoklund Olesen2009-04-281-0/+10
| | | | | | | | | | TargetRegisterClass method. Also make the method non-asserting. It will return NULL when given an invalid subreg index. The method is needed by an upcoming patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70296 91177308-0d34-0410-b5e6-96231b3b80d8
* r70270 isn't ready yet. Back this out. Sorry for the noise.Bill Wendling2009-04-288-44/+40
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70275 91177308-0d34-0410-b5e6-96231b3b80d8
* Massive check in. This changes the "-fast" flag to "-O#" in llc. If you want toBill Wendling2009-04-288-40/+44
| | | | | | | | | | | | use the old behavior, the flag is -O0. This change allows for finer-grained control over which optimizations are run at different -O levels. Most of this work was pretty mechanical. The majority of the fixes came from verifying that a "fast" variable wasn't used anymore. The JIT still uses a "Fast" flag. I'm not 100% sure if it's necessary to change it there... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70270 91177308-0d34-0410-b5e6-96231b3b80d8
* Add tests for WeakVH and AssertingVH. These pointed out that the overloads forJeffrey Yasskin2009-04-271-42/+2
| | | | | | | | the comparison operators were not only unnecessary in the presence of the implicit conversion; they caused ambiguous overload errors. So I deleted them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70243 91177308-0d34-0410-b5e6-96231b3b80d8
* give bitstreamreader an API to ignore names for blocks/records,Chris Lattner2009-04-271-1/+16
| | | | | | | only llvm-bcanalyzer wants this info. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70239 91177308-0d34-0410-b5e6-96231b3b80d8
* 2nd attempt, fixing SSE4.1 issues and implementing feedback from duncan.Nate Begeman2009-04-274-16/+49
| | | | | | | | | | | | | | | | PR2957 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70225 91177308-0d34-0410-b5e6-96231b3b80d8
* 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
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