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* Add MaxStackAlignment.cpp to CMakeJim Grosbach2009-12-021-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90337 91177308-0d34-0410-b5e6-96231b3b80d8
* Factor the stack alignment calculations out into a target independent pass.Jim Grosbach2009-12-021-0/+70
| | | | | | No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90336 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't count PHI instructions toward the limit for tail duplicating a block.Bob Wilson2009-12-021-4/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90326 91177308-0d34-0410-b5e6-96231b3b80d8
* Clarify that DIEString does not keep a copy of the string.Devang Patel2009-12-022-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90318 91177308-0d34-0410-b5e6-96231b3b80d8
* Reuse existing subprogram DIE.Devang Patel2009-12-011-2/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90281 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR5391: support early clobber physical register def tied with a use (ewwww)Evan Cheng2009-12-012-4/+12
| | | | | | | | | - A valno should be set HasRedefByEC if there is an early clobber def in the middle of its live ranges. It should not be set if the def of the valno is defined by an early clobber. - If a physical register def is tied to an use and it's an early clobber, it just means the HasRedefByEC is set since it's still one continuous live range. - Add a couple of missing checks for HasRedefByEC in the coalescer. In general, it should not coalesce a vr with a physical register if the physical register has a early clobber def somewhere. This is overly conservative but that's the price for using such a nasty inline asm "feature". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90269 91177308-0d34-0410-b5e6-96231b3b80d8
* Add edge source labels to SelectionDAG graphs, now that the graph printingDan Gohman2009-12-011-0/+5
| | | | | | | | framework omits differentiated edge sources in the case where the labels are empty strings. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90254 91177308-0d34-0410-b5e6-96231b3b80d8
* Minor cleanups.Dan Gohman2009-12-011-9/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90253 91177308-0d34-0410-b5e6-96231b3b80d8
* Trim an unnecessary #include.Dan Gohman2009-12-011-1/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90252 91177308-0d34-0410-b5e6-96231b3b80d8
* Clear function specific containers while processing end of a function, even ↵Devang Patel2009-12-011-9/+7
| | | | | | if DW_TAG_subprogram for current function is not found. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90247 91177308-0d34-0410-b5e6-96231b3b80d8
* Move PHIElimination::isLiveOut method to LiveVariables.Jakob Stoklund Olesen2009-12-013-54/+47
| | | | | | | | We want LiveVariables clients to use methods rather than accessing the getVarInfo data structure directly. That way it will be possible to change the LiveVariables representation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90240 91177308-0d34-0410-b5e6-96231b3b80d8
* Use CFG connectedness as a secondary sort key when deciding the order of ↵Jakob Stoklund Olesen2009-12-011-3/+13
| | | | | | | | | copy coalescing. This means that well connected blocks are copy coalesced before the less connected blocks. Connected blocks are more difficult to coalesce because intervals are more complicated, so handling them first gives a greater chance of success. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90194 91177308-0d34-0410-b5e6-96231b3b80d8
* Devang pointed out that this code should use DIScope instead ofDan Gohman2009-12-011-3/+3
| | | | | | | DICompileUnit. This code now prints debug filenames successfully. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90181 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR5614: parts of a physical register def may be killed the rest.Evan Cheng2009-12-011-1/+47
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90180 91177308-0d34-0410-b5e6-96231b3b80d8
* If pointer type has a name then do not ignore the name.Devang Patel2009-11-301-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90172 91177308-0d34-0410-b5e6-96231b3b80d8
* New virtual registers created for spill intervals should inherit allocation ↵Jakob Stoklund Olesen2009-11-301-0/+6
| | | | | | | | | | | | | | | | | | | hints from the original register. This helps us avoid silly copies when rematting values that are copied to a physical register: leaq _.str44(%rip), %rcx movq %rcx, %rsi call _strcmp becomes: leaq _.str44(%rip), %rsi call _strcmp The coalescer will not touch the movq because that would tie down the physical register. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90163 91177308-0d34-0410-b5e6-96231b3b80d8
* Reprioritize tests for tail duplication to be aggressive about indirectBob Wilson2009-11-301-3/+3
| | | | | | | | | branches even when optimizing for code size. Unless we find evidence to the contrary in the future, the special treatment for indirect branches does not have a significant effect on code size, and performance still matters with -Os. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90147 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove isProfitableToDuplicateIndirectBranch target hook. It is profitableBob Wilson2009-11-301-2/+1
| | | | | | | | | | for all the processors where I have tried it, and even when it might not help performance, the cost is quite low. The opportunities for duplicating indirect branches are limited by other factors so code size does not change much due to tail duplicating indirect branches aggressively. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90144 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix last DOTGraphTraits problems in CompilationGraph.Tobias Grosser2009-11-301-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90136 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove ShortNames from getNodeLabel in DOTGraphTraitsTobias Grosser2009-11-303-23/+20
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90134 91177308-0d34-0410-b5e6-96231b3b80d8
* Instantiate DefaultDOTGraphTraitsTobias Grosser2009-11-303-2/+11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90133 91177308-0d34-0410-b5e6-96231b3b80d8
* Added support to allow clients to custom widen. For X86, custom widen ↵Mon P Wang2009-11-305-56/+92
| | | | | | | | | | vectors for divide/remainder since these operations can trap by unroll them and adding undefs for the resulting vector. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90108 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename new TailDuplicationPass to avoid name conflict with the old one.Bob Wilson2009-11-262-12/+12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89968 91177308-0d34-0410-b5e6-96231b3b80d8
* When all defs of a vr are implicit_def, delete all of the defs.Evan Cheng2009-11-261-2/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89905 91177308-0d34-0410-b5e6-96231b3b80d8
* Split tail duplication into a separate pass. This is needed to avoidBob Wilson2009-11-266-239/+310
| | | | | | | | | | running tail duplication when doing branch folding for if-conversion, and we also want to be able to run tail duplication earlier to fix some reg alloc problems. Move the CanFallThrough function from BranchFolding to MachineBasicBlock so that it can be shared by TailDuplication. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89904 91177308-0d34-0410-b5e6-96231b3b80d8
* ProcessImplicitDefs should watch out for invalidated iterator and extra ↵Evan Cheng2009-11-251-14/+45
| | | | | | implicit operands on copies. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89880 91177308-0d34-0410-b5e6-96231b3b80d8
* Avoid some possibly unsafe uses of StringRef::data().Benjamin Kramer2009-11-251-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89873 91177308-0d34-0410-b5e6-96231b3b80d8
* Use StringRef (again) in DebugInfo interface.Devang Patel2009-11-252-44/+42
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89866 91177308-0d34-0410-b5e6-96231b3b80d8
* Refactor target hook for tail duplication as requested by Chris.Bob Wilson2009-11-241-3/+12
| | | | | | | | | | | | | Make tail duplication of indirect branches much more aggressive (for targets that indicate that it is profitable), based on further experience with this transformation. I compiled 3 large applications with and without this more aggressive tail duplication and measured minimal changes in code size. ("size" on Darwin seems to round the text size up to the nearest page boundary, so I can only say that any code size increase was less than one 4k page.) Radar 7421267. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89814 91177308-0d34-0410-b5e6-96231b3b80d8
* Use StringRef instead of std::string in DIEString.Devang Patel2009-11-244-5/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89793 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove DebugLabelFolder pass. It is not used by dwarf writer anymore.Devang Patel2009-11-242-76/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89790 91177308-0d34-0410-b5e6-96231b3b80d8
* Swith to pubtypes section before emitting pub types.Devang Patel2009-11-241-0/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89787 91177308-0d34-0410-b5e6-96231b3b80d8
* Emit pubtypes.Devang Patel2009-11-242-23/+95
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89725 91177308-0d34-0410-b5e6-96231b3b80d8
* <rdar://problem/6721894>. Allow multiple registers to be renamed together ↵David Goodwin2009-11-241-6/+0
| | | | | | (super and sub) if necessary to break an anti-dependence. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89722 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove ISD::DEBUG_LOC and ISD::DBG_LABEL, which are no longer used.Dan Gohman2009-11-233-24/+0
| | | | | | | | | Note that "hasDotLocAndDotFile"-style debug info was already broken; people wanting this functionality should implement it in the AsmPrinter/DwarfWriter code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89711 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify this code.Dan Gohman2009-11-231-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89702 91177308-0d34-0410-b5e6-96231b3b80d8
* Print the debug info line and column in MachineInstr::print even when there'sDan Gohman2009-11-231-2/+3
| | | | | | | no filename. This situation is apparently fairly common right now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89701 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r89487.Devang Patel2009-11-231-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89686 91177308-0d34-0410-b5e6-96231b3b80d8
* Move CopyCatchInfo into FunctionLoweringInfo.cpp too, for consistency.Dan Gohman2009-11-233-15/+18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89683 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename SelectionDAGLowering to SelectionDAGBuilder, and renameDan Gohman2009-11-235-238/+238
| | | | | | | SelectionDAGBuild.cpp to SelectionDAGBuilder.cpp. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89681 91177308-0d34-0410-b5e6-96231b3b80d8
* Move RegsForValue to an anonymous namespace, since it is only usedDan Gohman2009-11-231-2/+2
| | | | | | | in this file. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89675 91177308-0d34-0410-b5e6-96231b3b80d8
* Move some more code out of SelectionDAGBuild.cpp and intoDan Gohman2009-11-235-74/+76
| | | | | | | FunctionLoweringInfo.cpp. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89674 91177308-0d34-0410-b5e6-96231b3b80d8
* Update CMake file.Ted Kremenek2009-11-231-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89671 91177308-0d34-0410-b5e6-96231b3b80d8
* Move the FunctionLoweringInfo class and some related utility functions outDan Gohman2009-11-235-310/+419
| | | | | | | | of SelectionDAGBuild.h/cpp into its own files, to help separate general lowering logic from SelectionDAG-specific lowering logic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89667 91177308-0d34-0410-b5e6-96231b3b80d8
* Pull LLVMContext out of PromoteMemToReg.Nick Lewycky2009-11-231-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89645 91177308-0d34-0410-b5e6-96231b3b80d8
* Add getFrameIndexReference() to TargetRegisterInfo, which allows targets toJim Grosbach2009-11-221-5/+6
| | | | | | | | | | | tell debug info which base register to use to reference a frame index on a per-index basis. This is useful, for example, in the presence of dynamic stack realignment when local variables are indexed via the stack pointer and stack-based arguments via the frame pointer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89620 91177308-0d34-0410-b5e6-96231b3b80d8
* 80-column cleanupJim Grosbach2009-11-221-10/+18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89612 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach MachineBasicBlock::updateTerminator() to handle a failing ↵Jakob Stoklund Olesen2009-11-221-2/+8
| | | | | | | | | TII->ReverseBranchCondition(Cond) call. This fixes the MallocBench/cfrac test case regression. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89608 91177308-0d34-0410-b5e6-96231b3b80d8
* remove trailing whitespaceJim Grosbach2009-11-211-39/+39
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89567 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow target to disable if-converting predicable instructions. e.g. NEON ↵Evan Cheng2009-11-211-1/+1
| | | | | | instructions under ARM mode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89541 91177308-0d34-0410-b5e6-96231b3b80d8
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