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* Propogate the Depth argument when callingDan Gohman2009-08-041-1/+2
| | | | | | | | | | TLI.computeMaskedBitsForTargetNode from ComputeMaskedBits, since the former may call back into the latter. This fixes a major compile time problem on a testcase that happnened to hit this in a particularly bad way, PR4643. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78023 91177308-0d34-0410-b5e6-96231b3b80d8
* Update CMake files.Ted Kremenek2009-08-031-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78020 91177308-0d34-0410-b5e6-96231b3b80d8
* eliminate CurrentSection, rename CurrentSection_ -> CurrentSection, make it ↵Chris Lattner2009-08-032-22/+15
| | | | | | | | | private, eliminate IsInTextSection. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78017 91177308-0d34-0410-b5e6-96231b3b80d8
* Kill off SwitchToDataSection and SwitchToTextSection, woo.Chris Lattner2009-08-031-57/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78015 91177308-0d34-0410-b5e6-96231b3b80d8
* Re-apply LiveInterval index dumping patch, with fixes suggested by BillDavid Greene2009-08-034-7/+36
| | | | | | | and others. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78003 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix Bug 4657: register scavenger asserts with subreg loweringJakob Stoklund Olesen2009-08-032-8/+33
| | | | | | | | | | | | | | | When LowerSubregsInstructionPass::LowerInsert eliminates an INSERT_SUBREG instriction because it is an identity copy, make sure that the same registers are alive before and after the elimination. When the super-register is marked <undef> this requires inserting an IMPLICIT_DEF instruction to make sure the super register is live. Fix a related bug where a kill flag on the inserted sub-register was not transferred properly. Finally, clear the undef flag in MachineInstr::addRegisterKilled. Undef implies dead and kill implies live, so they cant both be valid. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77989 91177308-0d34-0410-b5e6-96231b3b80d8
* make getObjFileLowering() return a non-const reference.Chris Lattner2009-08-031-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77984 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert 77974. It breaks 3 of the ARM tests.Bob Wilson2009-08-031-8/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77982 91177308-0d34-0410-b5e6-96231b3b80d8
* make SwitchToSection accept null sections for now.Chris Lattner2009-08-031-3/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77976 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow targets to custom handle softening of results or operands before ↵Sanjiv Gupta2009-08-031-0/+8
| | | | | | trying the standard stuff. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77974 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm_report_error already prints "LLVM ERROR:". So stop reporting errors ↵Benjamin Kramer2009-08-031-6/+5
| | | | | | like "LLVM ERROR: llvm: error:" or "LLVM ERROR: ERROR:". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77971 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a coaelescer bug. If a copy val# is extended to eliminate a ↵Evan Cheng2009-08-031-1/+8
| | | | | | non-trivially coalesced copy, and the copy kills its source register. Trim the source register's live range to the last use if possible. This fixes up kill marker to make the scavenger happy. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77967 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix some comments referring to std::cerr.Daniel Dunbar2009-08-031-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77931 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix issue in regscavenger when scavenging a callee-saved register that has ↵Jakob Stoklund Olesen2009-08-021-1/+8
| | | | | | not been spilled. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77912 91177308-0d34-0410-b5e6-96231b3b80d8
* Never add a kill flag to a constrained physical register in a two-addr ↵Jakob Stoklund Olesen2009-08-021-0/+3
| | | | | | instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77906 91177308-0d34-0410-b5e6-96231b3b80d8
* Scavenger asserts.Jakob Stoklund Olesen2009-08-021-2/+11
| | | | | | | Allow imp-def and imp-use of anything in the scavenger asserts, just like the machine code verifier. Allow redefinition of a sub-register of a live register. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77904 91177308-0d34-0410-b5e6-96231b3b80d8
* Avoid forming a SELECT_CC in a type that the target doesn'tDan Gohman2009-08-021-1/+2
| | | | | | | | | | | | | | | | | | | | support. This isn't immediately interesting, because Legalize ends up lowering SELECT_CC if the target doesn't support it, but this simplifies the process. Also, if the SELECT_CC would be expanded in Legalize, it can potentially end up with two copies of the condition expression. By leaving it as SELECT+SETCC, the SELECT can be expanded into two SELECTs that use a single SETCC. The two comparisons are usually CSE'd, but depending on when various expressions get legalized, the comparison expression could involve calls to library functions, such that the comparison expression may not be able to be CSE'd. This will be needed by a future patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77896 91177308-0d34-0410-b5e6-96231b3b80d8
* Handle <undef> flag in machine code verifier.Jakob Stoklund Olesen2009-08-021-1/+2
| | | | | | Use of an <undef> register is treated like an <imp-use>. It is not an error to use a dead <undef> register. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77890 91177308-0d34-0410-b5e6-96231b3b80d8
* move dwarf debug info section selection stuff from TAI toChris Lattner2009-08-021-24/+26
| | | | | | | TLOF, unifying all the dwarf targets at the same time. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77889 91177308-0d34-0410-b5e6-96231b3b80d8
* convert EHFrameSection to be managed by TLOF instead of TAI.Chris Lattner2009-08-021-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77888 91177308-0d34-0410-b5e6-96231b3b80d8
* remove the dead ELFTargetAsmInfo.h/cpp file. TargetAsmInfoChris Lattner2009-08-021-1/+1
| | | | | | | | defaults to being ELF. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77866 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix some fixme's in #if 0'd code by making it dependent on the structuralChris Lattner2009-08-021-29/+34
| | | | | | | | behavior of the LSDA section instead of on some random target hook that needs to be kept in synch with other points of truth. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77855 91177308-0d34-0410-b5e6-96231b3b80d8
* move getDwarfExceptionSection from TAI to TLOF and rename it to Chris Lattner2009-08-021-5/+4
| | | | | | | | | | | | getLSDASection() to be more specific. This makes it pretty obvious that the ELF LSDA section is being specified wrong in PIC mode. We're probably getting a lot of startup-time relocations to a readonly page, which is expensive and bad. Someone who cares about ELF C++ should investigate this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77847 91177308-0d34-0410-b5e6-96231b3b80d8
* convert ctors/dtors section to be in TLOF instead ofChris Lattner2009-08-021-2/+2
| | | | | | | TAI. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77842 91177308-0d34-0410-b5e6-96231b3b80d8
* (re)introduce new simpler apis for creation sectionkinds.Chris Lattner2009-08-012-16/+14
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77834 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove "JumpTableDataSection" from TAI, instead, have AsmPrinterChris Lattner2009-08-012-13/+17
| | | | | | | | | | | | | | compute it based on what it knows. As part of this, rename getSectionForMergeableConstant to getSectionForConstant because it works for non-mergable constants also. The only functionality change from this is that Xcore will start dropping its jump tables into readonly section instead of data section in -static mode. This should be fine as the linker resolves the relocations. If this is a problem, let me know and we'll come up with another solution. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77833 91177308-0d34-0410-b5e6-96231b3b80d8
* loweringinfo is always non-null.Chris Lattner2009-08-011-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77821 91177308-0d34-0410-b5e6-96231b3b80d8
* fix a problem Eli noticed where we would compile the attached ptrtointChris Lattner2009-08-011-13/+13
| | | | | | | | | | | | | | | | | to: .quad X even on a 32-bit system, where X is not 64-bits. There isn't much that we can do here, so we just print: .quad ((X) & 4294967295) instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77818 91177308-0d34-0410-b5e6-96231b3b80d8
* Change SectionKind to be a property that is true of a *section*, itChris Lattner2009-08-012-15/+14
| | | | | | | | | | | | | | | | | | | | should have no state that is specific to particular globals in the section. In this case, it means the removal of the "isWeak" and "ExplicitSection" bits. MCSection uses the new form of SectionKind. To handle isWeak, I introduced a new SectionInfo class, which is SectionKind + isWeak, and it is used by the part of the code generator that does classification of a specific global. The ExplicitSection disappears. It is moved onto MCSection as a new "IsDirective" bit. Since the Name of a section is either a section or directive, it makes sense to keep this bit in MCSection. Ultimately the creator of MCSection should canonicalize (e.g.) .text to whatever the actual section is. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77803 91177308-0d34-0410-b5e6-96231b3b80d8
* Print the target flags as an int instead of a char, as they aren'tDan Gohman2009-08-011-4/+4
| | | | | | | actually characters. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77794 91177308-0d34-0410-b5e6-96231b3b80d8
* Give MachineFunctionAnalysis a destructor so it can verify thatDan Gohman2009-08-011-0/+4
| | | | | | | that it released its allocated memory. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77775 91177308-0d34-0410-b5e6-96231b3b80d8
* Delete a redundant variable.Dan Gohman2009-08-011-1/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77774 91177308-0d34-0410-b5e6-96231b3b80d8
* Minor code simplifications.Dan Gohman2009-08-011-8/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77769 91177308-0d34-0410-b5e6-96231b3b80d8
* SelectionDAGISel no longer needs to check hasAvailableExternallyLinkage,Dan Gohman2009-08-011-5/+0
| | | | | | | | as it is now a MachineFunctionPass, and MachineFunctionPass now handles this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77760 91177308-0d34-0410-b5e6-96231b3b80d8
* Make UnreachableMachineBlockElim preserve MachineDominatorTree andDan Gohman2009-08-011-0/+15
| | | | | | | | | | MachineLoopInfo. llc now runs MachineLoopInfo and MachineDominatorTree only twice, instead of three times. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77759 91177308-0d34-0410-b5e6-96231b3b80d8
* Use setPreservesAll and setPreservesCFG in CodeGen passes.Dan Gohman2009-07-3117-14/+31
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77754 91177308-0d34-0410-b5e6-96231b3b80d8
* SelectionDAGISel does not "preserve all", since it makes lots of changesDan Gohman2009-07-311-1/+3
| | | | | | | to the MachineFunction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77753 91177308-0d34-0410-b5e6-96231b3b80d8
* Use a range insert instead of an explicit loop.Dan Gohman2009-07-311-2/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77752 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow target intrinsics that return multiple values, i.e., struct types,Bob Wilson2009-07-311-15/+9
| | | | | | | | | | | | | | | | | | | | | | | | | in SelectionDAGLowering::visitTargetIntrinsic. This removes a bit of special-case code for vector types. After staring at it for a while, I managed to convince myself that it is not necessary. The only case where TLI.getValueType() differs from MVT::getMVT is for iPTR, so this code could potentially make a difference for a vector of pointers. But, it looks like that is not supported. Calling TLI.getValueType() on a vector of pointers leads to the following sequence of calls: TargetLowering::getValueType MVT::getMVT MVT::getVectorVT(iPTR, num elements) MVT::getExtendedVectorVT MVT::getTypeForMVT for iPTR assertion fails "Type is not extended!" So, unless I'm really missing something, this bit of code is irrelevant to the current version of LLVM, which is consistent with the fact that I don't see this code in other similar places. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77747 91177308-0d34-0410-b5e6-96231b3b80d8
* add some comments on how this is *supposed* to work. We don'tChris Lattner2009-07-311-0/+27
| | | | | | | | need the PreferredEHDataFormat hook, but I have yet-more refactoring to do before I can zap it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77742 91177308-0d34-0410-b5e6-96231b3b80d8
* rearrange a conditional. Even if this weren't #if 0'd out, this wouldChris Lattner2009-07-311-4/+5
| | | | | | | have no functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77741 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify operand padding by keying off tabs in the asm stream. IfDavid Greene2009-07-311-1/+21
| | | | | | | | | | | | | padding is disabled, tabs get replaced by spaces except in the case of the first operand, where the tab is output to line up the operands after the mnemonics. Add some better comments and eliminate redundant code. Fix some testcases to not assume tabs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77740 91177308-0d34-0410-b5e6-96231b3b80d8
* PreferredEHDataFormat is always call with data and global, but this wholeChris Lattner2009-07-311-1/+1
| | | | | | | | thing is #if0'd out anyway. Just simplify the code by reducing the interface. Not deleting this is essential for Bill's continuing happiness. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77736 91177308-0d34-0410-b5e6-96231b3b80d8
* move emitUsedDirectiveFor to TargetLoweringObjectFile and rename it toChris Lattner2009-07-311-1/+1
| | | | | | | | | indicate that it is a predicate, not an emitter. This eliminates TAI dependencies on Mangler and GlobalValue. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77726 91177308-0d34-0410-b5e6-96231b3b80d8
* Move a few more APIs back to 2.5 forms. The only remaining ones left to ↵Owen Anderson2009-07-314-8/+8
| | | | | | | | | change back are metadata related, which I'm waiting on to avoid conflicting with Devang. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77721 91177308-0d34-0410-b5e6-96231b3b80d8
* Update CMake files.Ted Kremenek2009-07-311-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77709 91177308-0d34-0410-b5e6-96231b3b80d8
* switch off of 'Section' onto MCSection. We're not properly usingChris Lattner2009-07-314-13/+17
| | | | | | | | MCSection subclasses yet, but this is a step in the right direction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77708 91177308-0d34-0410-b5e6-96231b3b80d8
* MachineFunction no longer needs Annotation.Dan Gohman2009-07-311-2/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77704 91177308-0d34-0410-b5e6-96231b3b80d8
* Reapply r77654 with a fix: MachineFunctionPass's getAnalysisUsageDan Gohman2009-07-319-91/+113
| | | | | | | | | shouldn't do AU.setPreservesCFG(), because even though CodeGen passes don't modify the LLVM IR CFG, they may modify the MachineFunction CFG, and passes like MachineLoop are registered with isCFGOnly set to true. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77691 91177308-0d34-0410-b5e6-96231b3b80d8
* refactor section construction in TLOF to be through an explicitChris Lattner2009-07-313-0/+15
| | | | | | | initialize method, which can be called when an MCContext is available. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77687 91177308-0d34-0410-b5e6-96231b3b80d8
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