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* The JIT calls TidyLandingPads to tidy up the landing pads. However, because theBill Wendling2010-04-161-1/+1
| | | | | | | | | | | | | | | | | JIT doesn't use the MC back-end asm printer to emit labels that it uses, the section for the MCSymbol is never set. And thus the MCSymbol for the EH label isn't marked as "defined". Because of that, TidyLandingPads removes the needed landing pads from the JIT output. This breaks EH for every JIT program. This is a work-around for this limitation. We pass in the label locations map. If the label has a non-zero value, then it was "emitted" by the JIT and TidyLandingPads shouldn't remove that label. A nicer solution would be to mark the MCSymbol as "used" by the JIT and not rely upon the section being set to determine if it's defined or not. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101453 91177308-0d34-0410-b5e6-96231b3b80d8
* Add const qualifiers to CodeGen's use of LLVM IR constructs.Dan Gohman2010-04-151-14/+15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101334 91177308-0d34-0410-b5e6-96231b3b80d8
* Give MachineModuleInfo an actual Module*.Chris Lattner2010-04-061-0/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100508 91177308-0d34-0410-b5e6-96231b3b80d8
* Switch the code generator (except the JIT) onto the new DebugLocChris Lattner2010-04-021-6/+7
| | | | | | | | | | | | | | | | | representation. This eliminates the 'DILocation' MDNodes for file/line/col tuples from -O0 -g codegen. This remove the old DebugLoc class, making it a typedef for DebugLoc, I'll rename NewDebugLoc next. I didn't update the JIT to use the new apis, so it will continue to work, but be as slow as before. Someone should eventually do this or, better yet, rip out the JIT debug info stuff and build the JIT on top of MC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100209 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix the third (and last known) case of code update problems due Chris Lattner2010-03-161-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | to LLVM IR changes with addr label weirdness. In the testcase, we generate references to the two bb's when codegen'ing the first function: _test1: ## @test1 leaq Ltmp0(%rip), %rax .. leaq Ltmp1(%rip), %rax Then continue to codegen the second function where the blocks get merged. We're now smart enough to emit both labels, producing this code: _test_fun: ## @test_fun ## BB#0: ## %entry Ltmp1: ## Block address taken Ltmp0: ## BB#1: ## %ret movl $-1, %eax ret Rejoice. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98595 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement support for the case when a reference to a addr-of-bb Chris Lattner2010-03-151-0/+8
| | | | | | | | | | | label is generated, but then the block is deleted. Since the value is undefined, we just emit the label right after the entry label of the function. It might matter that the label is in the same section as the function was afterall. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98579 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix the case when a reference to an address taken BB is emitted in oneChris Lattner2010-03-151-1/+3
| | | | | | | | | function, then the BB is RAUW'd before the definition is emitted. There are still two cases not being handled, but this should improve us back to the situation before I touched anything. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98566 91177308-0d34-0410-b5e6-96231b3b80d8
* fix AsmPrinter::GetBlockAddressSymbol to always return a uniqueChris Lattner2010-03-141-0/+10
| | | | | | | | label instead of trying to form one based on the BB name (which causes collisions if the name is empty). This fixes PR6608 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98495 91177308-0d34-0410-b5e6-96231b3b80d8
* get MMI out of the label uniquing business, just go to MCContextChris Lattner2010-03-141-13/+1
| | | | | | | to get unique assembler temporary labels. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98489 91177308-0d34-0410-b5e6-96231b3b80d8
* change the LabelSDNode to be EHLabelSDNode and make it holdChris Lattner2010-03-141-1/+1
| | | | | | | | | an MCSymbol. Make the EH_LABEL MachineInstr hold its label with an MCSymbol instead of ID. Fix a bug in MMI.cpp which would return labels named "Label4" instead of "label4". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98463 91177308-0d34-0410-b5e6-96231b3b80d8
* eliminate InvalidateLabel and LabelIDList from MMI and replaceChris Lattner2010-03-141-17/+3
| | | | | | | them with a counter. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98462 91177308-0d34-0410-b5e6-96231b3b80d8
* use Label->isDefined() instead of isLabelDeleted() now that weChris Lattner2010-03-141-8/+0
| | | | | | | | consistently use MCSymbol and only call this predicate after they should have been emitted. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98461 91177308-0d34-0410-b5e6-96231b3b80d8
* change EH related stuff (other than EH_LABEL) to use MCSymbolChris Lattner2010-03-141-15/+15
| | | | | | | | | | | | | | | | | | instead of label ID's. This cleans up and regularizes a bunch of code and makes way for future progress. Unfortunately, this pointed out to me that JITDwarfEmitter.cpp is largely copy and paste from DwarfException/MachineModuleInfo and other places. This is very sad and disturbing. :( One major change here is that TidyLandingPads moved from being called in DwarfException::BeginFunction to being called in DwarfException::EndFunction. There should not be any functionality change from doing this, but I'm not an EH expert. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98459 91177308-0d34-0410-b5e6-96231b3b80d8
* rearrange MCContext ownership. Before LLVMTargetMachine created it Chris Lattner2010-03-131-10/+14
| | | | | | | | | | | | | and passing off ownership to AsmPrinter. Now MachineModuleInfo creates it and owns it by value. This allows us to use MCSymbols more consistently throughout the rest of the code generator, and simplifies a bit of code. This also allows MachineFunction to keep an MCContext reference handy, and cleans up the TargetRegistry interfaces for AsmPrinters. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98450 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a bit along with the MCSymbols stored in the MachineModuleInfo maps thatBill Wendling2010-03-101-14/+12
| | | | | | | | | indicates that an MCSymbol is external or not. (It's true if it's external.) This will be used to specify the correct information to add to non-lazy pointers. That will be explained further when this bit is used. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98199 91177308-0d34-0410-b5e6-96231b3b80d8
* strength reduce MMI::MappedLabel to MMI::isLabelDeleted,Chris Lattner2010-03-091-5/+6
| | | | | | | | and add a FIXME about how we are eventually going to zap this lookup table once mc world domination is complete. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98031 91177308-0d34-0410-b5e6-96231b3b80d8
* inline RemapLabel into its only caller and simplify.Chris Lattner2010-03-091-11/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98029 91177308-0d34-0410-b5e6-96231b3b80d8
* Preliminary patch to improve dwarf EH generation - Hooks to return ↵Anton Korobeynikov2010-02-151-0/+7
| | | | | | Personality / FDE / LSDA / TType encoding depending on target / options (e.g. code model / relocation model) - MCIzation of Dwarf EH printer to use encoding information - Stub generation for ELF target (needed for indirect references) - Some other small changes here and there git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96285 91177308-0d34-0410-b5e6-96231b3b80d8
* Update of 94055 to track the IR level call site information via an intrinsic.Jim Grosbach2010-01-281-2/+28
| | | | | | | | | This allows code gen and the exception table writer to cooperate to make sure landing pads are associated with the correct invoke locations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94726 91177308-0d34-0410-b5e6-96231b3b80d8
* remove a noop function.Chris Lattner2010-01-261-4/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94616 91177308-0d34-0410-b5e6-96231b3b80d8
* back this out for now. Growing Function is not good.Jim Grosbach2010-01-211-18/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94097 91177308-0d34-0410-b5e6-96231b3b80d8
* remove a couple of asserts that use RTTI.Chris Lattner2010-01-211-3/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94068 91177308-0d34-0410-b5e6-96231b3b80d8
* Make sure that landing pad entries in the EH call site table are in the properJim Grosbach2010-01-211-2/+18
| | | | | | order for SjLj style exception handling. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94055 91177308-0d34-0410-b5e6-96231b3b80d8
* Metadata.h doesn't need to include ValueHandle.h anymore.Chris Lattner2009-12-281-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92211 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove DebugLabelFolder pass. It is not used by dwarf writer anymore.Devang Patel2009-11-241-16/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89790 91177308-0d34-0410-b5e6-96231b3b80d8
* "Attach debug info with llvm instructions" mode was enabled a month ago. Now ↵Devang Patel2009-11-121-2/+0
| | | | | | make it permanent and remove old way of inserting intrinsics to encode debug info for line number and scopes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87014 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement support to debug inlined functions.Devang Patel2009-11-101-3/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86748 91177308-0d34-0410-b5e6-96231b3b80d8
* Move DataTypes.h to include/llvm/System, update all users. This breaks the lastChandler Carruth2009-10-261-1/+1
| | | | | | | direct inclusion edge from System to Support. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85086 91177308-0d34-0410-b5e6-96231b3b80d8
* Using TrackingVH instead of WeakVH or WeakMetadataVH.Devang Patel2009-10-221-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84884 91177308-0d34-0410-b5e6-96231b3b80d8
* Enable "debug info attached to an instruction" mode.Devang Patel2009-10-121-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83925 91177308-0d34-0410-b5e6-96231b3b80d8
* Extract scope information from the variable itself, instead of relying on ↵Devang Patel2009-10-091-4/+4
| | | | | | | | | | alloca or llvm.dbg.declare location. While recording beginning of a function, use scope info from the first location entry instead of just relying on first location entry itself. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83684 91177308-0d34-0410-b5e6-96231b3b80d8
* If location info is attached with an instruction then keep track of alloca ↵Devang Patel2009-10-011-0/+14
| | | | | | slots used by a variable. This info will be used by AsmPrinter to emit debug info for variables. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83189 91177308-0d34-0410-b5e6-96231b3b80d8
* Silence unused variable warning.Devang Patel2009-09-301-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83151 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify.Devang Patel2009-09-301-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83123 91177308-0d34-0410-b5e6-96231b3b80d8
* move FnStubs/GVSTubs/HiddenGVStub handling out of the X86 asmprinterChris Lattner2009-09-161-3/+3
| | | | | | | | and use MachineModuleInfoMachO instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82022 91177308-0d34-0410-b5e6-96231b3b80d8
* add a new MachineModuleInfoMachO class, which is the per-moduleChris Lattner2009-09-161-1/+2
| | | | | | | | stuff common across all macho targets. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82018 91177308-0d34-0410-b5e6-96231b3b80d8
* the pointer MMI keeps will start out with object-file format specific stuffChris Lattner2009-09-161-10/+11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82012 91177308-0d34-0410-b5e6-96231b3b80d8
* add hooks to hang target-specific goop off MachineModuleInfo,Chris Lattner2009-09-151-7/+34
| | | | | | | | move MachineFunctionInfo virtual method out of line to give it a home. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81940 91177308-0d34-0410-b5e6-96231b3b80d8
* implement a new magic global "llvm.compiler.used" which is like llvm.used, butChris Lattner2009-07-201-5/+8
| | | | | | | doesn't cause ".no_dead_strip" to be emitted on darwin. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76399 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove an, apparently, leftover MachineModuleInfo::RecordSourceLine declaration.Argiris Kirtzidis2009-05-031-5/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70804 91177308-0d34-0410-b5e6-96231b3b80d8
* DebugLabelFolder ruthlessly deletes redundant labels. However, sometimes the ↵Devang Patel2009-04-101-0/+17
| | | | | | redundant labels is referenced by debug info somewhere else. This patch provies a way so that dwarf writer can mark labels as used. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68813 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove dead code.Devang Patel2009-02-031-28/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63653 91177308-0d34-0410-b5e6-96231b3b80d8
* Need only one set of debug info versions enum.Devang Patel2009-01-201-11/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62602 91177308-0d34-0410-b5e6-96231b3b80d8
* Removoe MachineModuleInfo methods (and related DebugInfoDesc class ↵Devang Patel2009-01-131-975/+0
| | | | | | hierarchy) that were used to handle debug info. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62199 91177308-0d34-0410-b5e6-96231b3b80d8
* Keep "has debug info" big in MachineModuleInfo to avoid circular dependency ↵Devang Patel2009-01-131-2/+7
| | | | | | between AsmPrinter and CodeGen. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62191 91177308-0d34-0410-b5e6-96231b3b80d8
* Today the front-ends (llvm-gcc and clang) generate multiple ↵Devang Patel2008-12-171-1/+2
| | | | | | | | | | llvm.dbg.compile_units to identify source file for various debug entities. Each llvm.dbg.compile_unit matches one file on the disk. However, the backend only supports one DW_TAG_compile_unit per .o file. The backend selects first compile_unit from the vector to construct DW_TAG_compile_unit entry, which is not correct in all cases. First step to resolve this is, record file name and directory directly in debug info for various debug entities. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61164 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a couple of Dwarf bugs.Evan Cheng2008-12-101-1/+8
| | | | | | | | - Emit DW_AT_byte_size for struct and union of size zero. - Emit DW_AT_declaration for forward type declaration. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60812 91177308-0d34-0410-b5e6-96231b3b80d8
* Move the include of MachineLocation.h into MachineModuleInfo.hDan Gohman2008-10-161-1/+1
| | | | | | | | | because it declares a std::vector<MachineMove>, and strict concept checking requires the definition of MachineMove to be available. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57617 91177308-0d34-0410-b5e6-96231b3b80d8
* Use StringMap for greater justice!Bill Wendling2008-07-071-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53202 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't return std::vector by value, but pass it in by reference to be filled.Bill Wendling2008-07-031-8/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53123 91177308-0d34-0410-b5e6-96231b3b80d8
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