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2009-10-20Add getTopBlock and getBottomBlock member functions to MachineLoopInfo.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84596 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-20If the physical register being spilled does not have an interval, spill its ↵Evan Cheng
sub-registers instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84586 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-20Enable post-pass frame index register scavenging for ARM and Thumb2Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84585 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-19Adjust the scavenge register spilling to allow the target to choose anJim Grosbach
appropriate restore location for the spill as well as perform the actual save and restore. The Thumb1 target uses this to make sure R12 is not clobbered while a spilled scavenger register is live there. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84554 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-19Revert r84295, this unbreaks llvm-gcc bootstrap on x86-64/linuxAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84516 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-19Fix a typo in a comment.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84504 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-19Change a few instance variables to be local variables.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84503 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-18Spill slots cannot alias.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84432 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-18-Revert parts of 84326 and 84411. Distinquishing between fixed and non-fixedEvan Cheng
stack slots and giving them different PseudoSourceValue's did not fix the problem of post-alloc scheduling miscompiling llvm itself. - Apply Dan's conservative workaround by assuming any non fixed stack slots can alias other memory locations. This means a load from spill slot #1 cannot move above a store of spill slot #2. - Enable post-alloc scheduling for x86 at optimization leverl Default and above. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84424 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-18Only fixed stack objects and spill slots should be get FixedStack ↵Evan Cheng
PseudoSourceValue. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84411 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-17Fix my -Asserts warning fix.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84372 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-17Suppress -Asserts warning.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84327 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-17Distinquish stack slots from other stack objects. They (and fixed objects) ↵Evan Cheng
get FixedStack PseudoSourceValues. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84326 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-17Revert 84315 for now. Re-thinking the patch.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84321 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-17Rename getFixedStack to getStackObject. The stack objects represented are notEvan Cheng
necessarily fixed. Only those will negative frame indices are "fixed." git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84315 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-1780 col violation.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84311 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-17Delete an obsolete comment.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84300 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-17Remove MallocInst from LLVM Instructions.Victor Hernandez
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84299 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-17Enhance CodePlacementOpt's unconditional intra-loop branch elimination logicDan Gohman
to be more general and understand more varieties of loops. Teach CodePlacementOpt to reorganize the basic blocks of a loop so that they are contiguous. This also includes a fair amount of logic for preserving fall-through edges while doing so. This fixes a BranchFolding-ism where blocks which can't be made to use a fall-through edge and don't conveniently fit anywhere nearby get tossed out to the end of the function. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84295 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-16Allow widening of extract subvectorMon P Wang
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84279 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-16Do not emit name entry for a pointer type.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84276 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-16Change createPostRAScheduler so it can be turned off at llc -O1.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84273 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-16If there is not any llvm instruction associated with each lexical scope ↵Devang Patel
encoded in debug info then create such scope on demand for variable info. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84262 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-16If post-alloc scheduler is not enabled, it should return false, not true.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84248 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-16Indent code.Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84247 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-1680 column violation.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84244 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-15Report errors correctly for unselected target intrinsics.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84193 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-15Make CodePlacementOpt align loops, rather than loop headers. TheDan Gohman
header is just the entry block to the loop, and it needn't be at the top of the loop in the code layout. Remove the code that suppressed loop alignment for outer loops, so that outer loops are aligned. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84158 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-14When LiveVariables is adding implicit-def to model "partial dead", add the ↵Evan Cheng
earlyclobber marker if the superreg def has it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84153 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-14Print earlyclobber for implicit-defs as well.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84152 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-14Make loop not recalc getNumOperands() each time aroundJim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84138 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-14Add support to record DbgScope as inlined scope.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84134 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-14quiet compiler warningJim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84133 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-14I don't see any point in having both eh.selector.i32 and eh.selector.i64,Duncan Sands
so get rid of eh.selector.i64 and rename eh.selector.i32 to eh.selector. Likewise for eh.typeid.for. This aligns us with gcc, which always uses a 32 bit value for the selector on all platforms. My understanding is that the register allocator used to assert if the selector intrinsic size didn't match the pointer size, and this was the reason for introducing the two variants. However my testing shows that this is no longer the case (I fixed some bugs in selector lowering yesterday, and some more today in the fastisel path; these might have caused the original problems). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84106 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-14This remat entry is basically done. There are hooks to allow targetsDan Gohman
to remat non-load instructions as loads, and the remat code now uses the UnmodeledSideEffects flags, MachineMemOperands, and similar things to decide which instructions are valid for rematerialization. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84060 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-13Add a few README.txt items.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84059 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-13s/DebugLoc.CompileUnit/DebugLoc.Scope/gDevang Patel
s/DebugLoc.InlinedLoc/DebugLoc.InlinedAtLoc/g git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84054 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-13Introduce new convenience methods for sign extending orDuncan Sands
truncating an SDValue (depending on whether the target type is bigger or smaller than the value's type); or zero extending or truncating it. Use it in a few places (this seems to be a popular operation, but I only modified cases of it in SelectionDAGBuild). In particular, the eh_selector lowering was doing this wrong due to a repeated rather than inverted test, fixed with this change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84027 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-13Add debugging output.David Goodwin
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84011 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-13Fix a -Asserts warning.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83950 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-12Find enclosing subprogram info.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83922 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-12Set default location for a function if it is not set.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83921 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-12Revert the kludge in 76703. I got a cleanDale Johannesen
bootstrap of FSF-style PPC, so there is some reason to believe the original bug (which was never analyzed) has been fixed, probably by 82266. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83871 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-12Remove a redundant member variable.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83857 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-12More heuristics for Combiner-AA. Still catches all important cases, butNate Begeman
compile time penalty on gnugo, the worst case in MultiSource, is down to about 2.5% from 30% git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83824 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-12Fix PR5087, patch by Jakub Staszak!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83822 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-10Create a new InstrEmitter class for translating SelectionDAG nodesDan Gohman
into MachineInstrs. This is mostly just moving the code from ScheduleDAGSDNodesEmit.cpp into a new class. This decouples MachineInstr emitting from scheduling. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83699 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-10Make getMachineNode return a MachineSDNode* instead of a generic SDNode*Dan Gohman
since it won't do any folding. This will help avoid some inconvenient casting. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83698 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-10Fix a missing initialization of PostRAScheduler's AA member.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83695 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-09The ScheduleDAG framework now requires an AliasAnalysis argument, thoughDan Gohman
it isn't needed in the ScheduleDAGSDNodes schedulers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83691 91177308-0d34-0410-b5e6-96231b3b80d8
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