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2010-08-04Change this llvm_unreachable to report_fatal_error, since it canDan Gohman
be triggered by valid, if dubious, IR. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110240 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-04While spilling live registers at the end of block check whether they are ↵Devang Patel
used by DBG_VALUE machine instructions or not. If a spilled register is used by DBG_VALUE machine instruction then insert a new DBG_VALUE machine instruction to encode variable's new location on stack. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110235 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-04If a variable is spilled by code generator then use DW_OP_fbreg to describe ↵Devang Patel
its location on stack. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110234 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-04Eliminate unnecessary empty string literals.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110183 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-03Oops. Don't normalize spill weights twice.Jakob Stoklund Olesen
When the normalizeSpillWeights function was introduced, I forgot to remove this normalization. This change could affect register allocation. Hopefully for the better. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110119 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-02Early exit and reduce indentation. No functionality change.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110069 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-02Free DbgScope created for dead functions.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110045 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-02Prefix `next' iterator operation with `llvm::'.Oscar Fuentes
Fixes potential ambiguity problems on VS 2010. Patch by nobled! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110029 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-02PR7586: Make sure we don't claim that unknown bits are actually known in theEli Friedman
ISD::AND case of TargetLowering::SimplifyDemandedBits. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110019 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-01Reference the personalities. Don't copy them into a new vector.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109966 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-30Fix for bug reported by Evzen Muller on llvm-commits: make sure to correctlyEli Friedman
check the range of the constant when optimizing a comparison between a constant and a sign_extend_inreg node. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109854 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-29Plug the remaining MC leaks by giving MCObjectStreamer/MCAsmStreamer ↵Benjamin Kramer
ownership of the TargetAsmBackend and the MCCodeEmitter. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109767 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-29Comment typo.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109765 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-29Fix a bug in the -regalloc=fast handling of exotic two-address instruction withJakob Stoklund Olesen
multiple defs, like t2LDRSB_POST. The first def could accidentally steal the physreg that the second, tied def was required to be allocated to. Now, the tied use-def is treated more like an early clobber, and the physreg is reserved before allocating the other defs. This would never be a problem when the tied def was the only def which is the usual case. This fixes MallocBench/gs for thumb2 -O0. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109715 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-28Print out the regclass of any virtual registers used by a machine instruction.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109608 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-27It is FE's responsibility to emit proper directory name.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109538 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-27GrammarJim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109525 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-27Fix a crash in the dag combiner caused by ↵Nate Begeman
ConstantFoldBIT_CONVERTofBUILD_VECTOR calling itself recursively and returning a SCALAR_TO_VECTOR node, but assuming the input was always a BUILD_VECTOR. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109519 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-2780 columnJim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109513 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-27fix typoJim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109511 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-27It's better to have the arrays, which would trigger the creation of stackBill Wendling
protectors, to be near the stack protectors on the stack. Accomplish this by tagging the stack object with a predicate that indicates that it would trigger this. In the prolog-epilog inserter, assign these objects to the stack after the stack protector but before the other objects. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109481 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-26Add SplitEditor to SplitKit. This class will be used to edit live intervals andJakob Stoklund Olesen
rewrite instructions for live range splitting. Still work in progress. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109469 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-26Fix a use-after-free.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109468 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-26Using llvm.eh.catch.all.value instead of .llvm.eh.catch.all.value.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109462 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-26The "excess register pressure" returned by HighRegPressure() is not accurate ↵Evan Cheng
enough to factor into scheduling priority. Eliminate it and add early exits to speed up scheduling. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109449 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-26Handle Values with no value in getCopyFromRegs.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109415 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-26A block dominates itself, by definition.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109402 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-26Pacify gcc-4.5 which wrongly thinks that RExcess (passed as the Excess ↵Duncan Sands
parameter) may be used uninitialized in the callers of HighRegPressure. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109393 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-26Factored out a bit of common code to mark VNInfos for deletion.Lang Hames
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109388 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-25Add comments.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109383 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-25Fix crashes when scheduling a CopyToReg node -- getMachineOpcode asserts onBob Wilson
those. Radar 8231572. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109367 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-24Add hook to insert late LLVM=>LLVM passes just before iselAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109354 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-24Change ScheduleDAGInstrs::Defs and ::Uses to be variable-size vectorsBob Wilson
instead of fixed size arrays, so that increasing FirstVirtualRegister to 16K won't cause a compile time performance regression. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109330 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-24Use current working directory when Dirname is empty. This only happens when ↵Devang Patel
absolute source file path is used on compiler command line. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109302 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-24Add an ILP scheduler. This is a register pressure aware scheduler that'sEvan Cheng
appropriate for targets without detailed instruction iterineries. The scheduler schedules for increased instruction level parallelism in low register pressure situation; it schedules to reduce register pressure when the register pressure becomes high. On x86_64, this is a win for all tests in CFP2000. It also sped up 256.bzip2 by 16%. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109300 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-23Remove too-strict assertion. We may want the vreg copy of the physical registerJim Grosbach
to be of a different register class. For example, in Thumb1 if the live-in is a high register, we want the vreg to be a low register. rdar://8224931 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109291 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-23Revert r109262.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109285 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-23- Allow target to specify when is register pressure "too high". In most cases,Evan Cheng
it's too late to start backing off aggressive latency scheduling when most of the registers are in use so the threshold should be a bit tighter. - Correctly handle live out's and extract_subreg etc. - Enable register pressure aware scheduling by default for hybrid scheduler. For ARM, this is almost always a win on # of instructions. It's runtime neutral for most of the tests. But for some kernels with high register pressure it can be a huge win. e.g. 464.h264ref reduced number of spills by 54 and sped up by 20%. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109279 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-23Use the proper type for shift counts. This fixes a bootstrap error.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109265 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-23IF directory name is empty then try to extract one using absolute file name.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109262 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-23DAGCombine (shl (anyext x, c)) to (anyext (shl x, c)) if the high bitsDan Gohman
are not demanded. This often allows the anyext to be folded away. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109242 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-23Make SDNode::dump() print a newline at the end.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109234 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-2380-col.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109205 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-22remove the JIT "NeedsExactSize" feature and supporting logic.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109167 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-22keep in 80 colsGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109122 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-22mass elimination of reliance on automatic iterator dereferencingGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109103 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-22undo 80 column trespassing I causedGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109092 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-22Re-apply r109079 with fix.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109083 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-22Revert r109079, which broke a lot of CodeGen tests.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109082 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-22Initial modifications to MCAssembler and TargetMachine for the MCJIT.Reid Kleckner
Patch by Olivier Meurant! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109080 91177308-0d34-0410-b5e6-96231b3b80d8
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