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* Fix CodePlacementOpt::OptimizeIntraLoopEdges so that its return valueBob Wilson2009-05-181-0/+2
| | | | | | correctly indicates whether it changed the code. llvm-svn: 72038
* New Spiller interface and trivial implementation.Lang Hames2009-05-183-2/+262
| | | | llvm-svn: 72030
* Revert last commit. It was wrong.Bill Wendling2009-05-181-2/+1
| | | | llvm-svn: 72026
* Don't call RegionInlinedFnEnd if our optimization level isn't -O0.Bill Wendling2009-05-181-1/+2
| | | | llvm-svn: 72024
* Silence Release-Asserts warnings.Daniel Dunbar2009-05-182-6/+10
| | | | llvm-svn: 72011
* Prevented reg0 from being added to MBB live-in set, which was causing issuesLang Hames2009-05-171-0/+5
| | | | | | for PostRAScheduler. llvm-svn: 71991
* Rename MachineVerifier pass to avoid command line collision.Jakob Stoklund Olesen2009-05-171-1/+1
| | | | llvm-svn: 71987
* Verify that explicit definitions in the TargetInstrDesc are matched byJakob Stoklund Olesen2009-05-161-1/+12
| | | | | | explicit register define operands. llvm-svn: 71933
* Allow redefinition of reserved registers.Jakob Stoklund Olesen2009-05-161-2/+3
| | | | llvm-svn: 71932
* Put back a bit of expensive checking logic thatDuncan Sands2009-05-161-1/+1
| | | | | | was overenthusiastically deleted in r70234. llvm-svn: 71926
* Pacify gcc-4.3, which suggests explicit braces hereDuncan Sands2009-05-161-1/+2
| | | | | | to avoid an ambiguous else. llvm-svn: 71924
* Pass to verify generated machine code.Jakob Stoklund Olesen2009-05-163-27/+704
| | | | | | | | | | | | | | | | | | | The following is checked: * Operand counts: All explicit operands must be present. * Register classes: All physical and virtual register operands must be compatible with the register class required by the instruction descriptor. * Register live intervals: Registers must be defined only once, and must be defined before use. The machine code verifier is enabled with the command-line option '-verify-machineinstrs', or by defining the environment variable LLVM_VERIFY_MACHINEINSTRS to the name of a file that will receive all the verifier errors. llvm-svn: 71918
* Split out the DwarfDebug module from the DwarfWriter module.Bill Wendling2009-05-157-2804/+3188
| | | | | | Again, no intendtional functionality change. llvm-svn: 71854
* Mark class as hidden.Bill Wendling2009-05-151-1/+1
| | | | llvm-svn: 71850
* Fix PR4210. Rewritter should track and update kills of sub-registers as well.Evan Cheng2009-05-151-42/+63
| | | | llvm-svn: 71848
* Move c'tor/d'tor to top of file.Bill Wendling2009-05-151-17/+14
| | | | llvm-svn: 71828
* Split out the DwarfException class into its own file. No functionality change,Bill Wendling2009-05-153-769/+894
| | | | | | though the classes have been marked with "VISIBILITY_HIDDEN". llvm-svn: 71827
* Split out the Dwarf writer stuff into separate files. This is a much moreBill Wendling2009-05-157-1278/+1584
| | | | | | | | | logical/sane approach to organizing all of the stuff that goes into writing out DWARF information. Honestly? even this is too complex for what it's supposed to be doing. Trivia: It *looks* like there would be functionality changes, however there aren't! llvm-svn: 71821
* Down with static variables!Owen Anderson2009-05-141-4/+8
| | | | | | Part one of many. llvm-svn: 71785
* Tag blocks with DW_AT_APPLE_block.Mike Stump2009-05-141-0/+7
| | | | llvm-svn: 71784
* Revert r71744. I must not have understood this correctly, because theBob Wilson2009-05-141-4/+9
| | | | | | assertion is failing for some tests. llvm-svn: 71779
* Fix for PR4124. Make TwoAddressFormPass::FindLastUseInMBB return the real ↵Lang Hames2009-05-141-2/+5
| | | | | | last use. llvm-svn: 71769
* Add an assert to turn a segfault on an unsupported inlineDan Gohman2009-05-141-0/+2
| | | | | | asm construct into an assertion failure. llvm-svn: 71757
* There's yet more ugliness (surprise!) in DebugInfo. This needs major reworking.Bill Wendling2009-05-131-21/+30
| | | | | | | Basically, there was a situation where it was getting an empty vector and doing a .back() on that. Which isn't cool. llvm-svn: 71746
* The IfConverter::MergeBlocks method appears to be used only to merge a basicBob Wilson2009-05-131-9/+4
| | | | | | | | block with its unique predecessor. Change the code to assert if that is not the case, instead of trying to handle situations where the block has multiple predecessors. llvm-svn: 71744
* Removing the HasBuiltinSetjmp flag and associated bits. Flagging the presenceJim Grosbach2009-05-133-8/+1
| | | | | | | | | of exception handling builtin sjlj targets in functions turns out not to be necessary. Marking the intrinsic implementation in the .td file as defining all registers is sufficient to get the context saved properly by the containing function. llvm-svn: 71743
* Revert a portion of Dan's change r71018 that I'm convinced is wrong.Bob Wilson2009-05-131-1/+1
| | | | | | | | | | | | | | | | | | | Dan was trying to catch the case where a basic block ends with a conditional branch to the fall-through block. In this case, all the instructions have been moved out of FromBBI, leaving it empty. It cannot end with a conditional branch. As the existing comment indicates, it will always fall through to the next block. If the block already had the next block (NBB) listed as a successor, the preceding loop has a check for that and does not remove it. Thus, we need to check and add the successor only when it is not already listed. With Dan's change, the empty block often ends up with the fall-through successor listed twice. This exposed the problem in pr4195, where CodePlacementOpt did not handle the same predecessor listed more than once. It is also at least partially responsible for pr4202 and probably a similar issue with Thumb branches being out of range. llvm-svn: 71742
* Merge adjacent conditional.Bob Wilson2009-05-131-2/+0
| | | | llvm-svn: 71741
* Remove an unused variable.Bob Wilson2009-05-131-3/+0
| | | | llvm-svn: 71740
* Fix some typos and spelling and grammar, mostly in comments, but also oneBob Wilson2009-05-131-21/+20
| | | | | | field name. No functional changes. llvm-svn: 71739
* Run code placement optimization for targets that want it (arm and x86 for now).Evan Cheng2009-05-132-0/+4
| | | | llvm-svn: 71726
* Change MachineInstrBuilder::addReg() to take a flag instead of a list ofBill Wendling2009-05-131-3/+3
| | | | | | | | | | | | booleans. This gives a better indication of what the "addReg()" is doing. Remembering what all of those booleans mean isn't easy, especially if you aren't spending all of your time in that code. I took Jakob's suggestion and made it illegal to pass in "true" for the flag. This should hopefully prevent any unintended misuse of this (by reverting to the old way of using addReg()). llvm-svn: 71722
* Move the bookkeeping of the debug scopes back to the place where itBill Wendling2009-05-131-20/+20
| | | | | | | | belonged. The variable declaration stuff wasn't happy with it where it was. Sorry that the testcase is so big. Bugpoint wasn't able to reduce it successfully. llvm-svn: 71714
* PEI: rename PEI.h to PrologEpilogInserter.h to adhere to file naming standardJohn Mosby2009-05-133-2/+2
| | | | llvm-svn: 71678
* add ShrinkWrapping.cppChris Lattner2009-05-131-0/+1
| | | | llvm-svn: 71645
* Fix for PR4121. If TwoAddressInstructionPass removes a dead def, and the regBLang Hames2009-05-131-0/+6
| | | | | | operand was killed, the kill needs to be removed from regB's VarInfo. llvm-svn: 71635
* Add support for GCC compatible builtin setjmp and longjmp intrinsics. This isJim Grosbach2009-05-123-1/+8
| | | | | | | a supporting preliminary patch for GCC-compatible SjLJ exception handling. Note that these intrinsics are not designed to be invoked directly by the user, but rather used by the front-end as target hooks for exception handling. llvm-svn: 71610
* If header of inner loop is aligned, do not align the outer loop header. We ↵Evan Cheng2009-05-121-6/+33
| | | | | | don't want to add nops in the outer loop for the sake of aligning the inner loop. llvm-svn: 71609
* Teach TransferDeadness to delete truly dead instructions if they do not ↵Evan Cheng2009-05-122-21/+60
| | | | | | produce side effects. llvm-svn: 71606
* Restructure PEI code:John Mosby2009-05-123-1307/+1375
| | | | | | | | | - moved shrink wrapping code from PrologEpilogInserter.cpp to new file ShrinkWrapping.cpp. - moved PEI pass definition into new shared header PEI.h. llvm-svn: 71588
* Switch to using IRBuilder throughout.Jay Foad2009-05-121-204/+195
| | | | llvm-svn: 71587
* Fixed a stack slot coloring with reg bug: do not update implicit use / def ↵Evan Cheng2009-05-122-16/+47
| | | | | | when doing forward / backward propagation. llvm-svn: 71574
* Fix pr4195: When iterating through predecessor blocks, break out of the loopBob Wilson2009-05-121-3/+3
| | | | | | | | | | | after finding the (unique) layout predecessor. Sometimes a block may be listed more than once, and processing it more than once in this loop can lead to inconsistent values for FtTBB/FtFBB, since the AnalyzeBranch method does not clear these values. There's no point in continuing the loop regardless. The testcase for this is reduced from the 2003-05-02-DependentPHI SingleSource test. llvm-svn: 71536
* - Record that the debug info is actually used so that the label folder doesn'tBill Wendling2009-05-121-10/+10
| | | | | | | blast it away. - Move InlineInfo bookkeeping to bookkeep the correct debug info object. llvm-svn: 71519
* Fixed PR4090.Lang Hames2009-05-111-1/+16
| | | | llvm-svn: 71495
* Fix PR4188. TailMerging can't tolerate inexactDale Johannesen2009-05-111-0/+15
| | | | | | sucessor info. llvm-svn: 71478
* Apply patch review feedback.Evan Cheng2009-05-111-0/+2
| | | | llvm-svn: 71472
* Unbreak non-debug build.Evan Cheng2009-05-111-0/+8
| | | | llvm-svn: 71457
* Eliminate a compiler warning.Evan Cheng2009-05-111-0/+1
| | | | llvm-svn: 71456
* When scalarizing a vector BITCAST, check whether the operand has vectorDan Gohman2009-05-111-1/+2
| | | | | | | | type, rather than assume that it does. If the operand is not vector, it shouldn't be run through ScalarizeVectorOp. This fixes one of the testcases in PR3886. llvm-svn: 71453
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