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2010-07-04Infer alignments of fixed frame objects when they are constructed. This ↵Evan Cheng
ensures remat'ed loads from fixed slots have the right alignments. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107591 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-03Remove isSS argument from CreateFixedObject. Fixed objects cannot be spill ↵Evan Cheng
slots so it's always false. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107550 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-29Revert r107205 and r107207.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107215 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-29Introducing the "linker_weak" linkage type. This will be used for Objective-CBill Wendling
metadata types which should be marked as "weak", but which the linker will remove upon final linkage. For example, the "objc_msgSend_fixup_alloc" symbol is defined like this: .globl l_objc_msgSend_fixup_alloc .weak_definition l_objc_msgSend_fixup_alloc .section __DATA, __objc_msgrefs, coalesced .align 3 l_objc_msgSend_fixup_alloc: .quad _objc_msgSend_fixup .quad L_OBJC_METH_VAR_NAME_1 This is different from the "linker_private" linkage type, because it can't have the metadata defined with ".weak_definition". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107205 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-24Avoid adding duplicate function live-in's.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104560 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Add more const qualifiers for LLVM IR pointers in CodeGen.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101342 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Add const qualifiers to CodeGen's use of LLVM IR constructs.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101334 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-05enhance MachineFunction to have a MMI pointer.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100414 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-02Ok, third time's the charm. No changes from last time except the CMakeDavid Greene
source addition. Apparently the buildbots were wrong about failures. --- Add some switches helpful for debugging: -print-before=<Pass Name> Dump IR before running pass <Pass Name>. -print-before-all Dump IR before running each pass. -print-after-all Dump IR after running each pass. These are helpful when tracking down a miscompilation. It is easy to get IR dumps and do diffs on them, etc. To make this work well, add a new getPrinterPass API to Pass so that each kind of pass (ModulePass, FunctionPass, etc.) can create a Pass suitable for dumping out the kind of object the Pass works on. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100249 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-02Switch the code generator (except the JIT) onto the new DebugLocChris Lattner
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
2010-04-02Revert 100204. It broke a bunch of tests and apparently changed what passes ↵Evan Cheng
are run during codegen. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100207 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-02Let's try this again. Re-apply 100143 including an apparent missingDavid Greene
<string> include. For some reason the buildbot choked on this while my builds did not. It's probably due to a difference in system headers. --- Add some switches helpful for debugging: -print-before=<Pass Name> Dump IR before running pass <Pass Name>. -print-before-all Dump IR before running each pass. -print-after-all Dump IR after running each pass. These are helpful when tracking down a miscompilation. It is easy to get IR dumps and do diffs on them, etc. To make this work well, add a new getPrinterPass API to Pass so that each kind of pass (ModulePass, FunctionPass, etc.) can create a Pass suitable for dumping out the kind of object the Pass works on. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100204 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-01Revert r100143.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100146 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-01Add some switches helpful for debugging:David Greene
-print-before=<Pass Name> Dump IR before running pass <Pass Name>. -print-before-all Dump IR before running each pass. -print-after-all Dump IR after running each pass. These are helpful when tracking down a miscompilation. It is easy to get IR dumps and do diffs on them, etc. To make this work well, add a new getPrinterPass API to Pass so that each kind of pass (ModulePass, FunctionPass, etc.) can create a Pass suitable for dumping out the kind of object the Pass works on. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100143 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-30Rip out the 'is temporary' nonsense from the MCContext interface toChris Lattner
create symbols. It is extremely error prone and a source of a lot of the remaining integrated assembler bugs on x86-64. This fixes rdar://7807601. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99902 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-19Stop trying to merge identical jump tables. This had been inadvertentlyBob Wilson
disabled for several months (since svn r88806) and no one noticed. My fix for pr6543 yesterday reenabled it, but broke the ARM port's code for using TBB/TBH. Rather than adding a target hook to disable merging for Thumb2 only, I'm just taking this out. It is not common to have identical jump tables, the code we used to merge them was O(N^2), and it only helps code size, not performance. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98977 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-18Define placement new wrappers for BumpPtrAllocator andDan Gohman
RecyclingAllocator to allow client code to be simpler, and simplify several clients. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98847 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-18Fix pr6543: svn r88806 changed MachineJumpTableInfo::getJumpTableIndex() toBob Wilson
always create a new jump table. The intention was to avoid merging jump tables in SelectionDAGBuilder, and to wait for the branch folding pass to merge tables. Unfortunately, the same getJumpTableIndex() method is also used to merge tables in branch folding, so as a result of this change branch tables are never merged. Worse, the branch folding code is expecting getJumpTableIndex to always return the index of an existing table, but with this change, it never does so. In at least some cases, e.g., pr6543, this creates references to non-existent tables. I've fixed the problem by adding a new createJumpTableIndex function, which will always create a new table, and I've changed getJumpTableIndex to only look at existing tables. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98845 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-13rearrange MCContext ownership. Before LLVMTargetMachine created it Chris Lattner
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
2010-03-11Add a new jump table encoding to indicate jump tables entriesRichard Osborne
are inside the function by the target at the point of use. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98255 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-10set the temporary bit on MCSymbols correctly.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98124 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-19Add support for the 'alignstack' attribute to the x86 backend. Fixes PR5254.Charles Davis
Also, FileCheck'ize a test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96686 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-10Fix "the the" and similar typos.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95781 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-27Silence GCC warnings with asserts turned off. No functionality change.Chandler Carruth
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94673 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-26Move getJTISymbol from MachineJumpTableInfo to MachineFunction,Chris Lattner
which is more convenient, and change getPICJumpTableRelocBaseExpr to take a MachineFunction to match. Next, move the X86 code that create a PICBase symbol to X86TargetLowering::getPICBaseSymbol from X86MCInstLower::GetPICBaseSymbol, which was an asmprinter specific library. This eliminates a 'gross hack', and allows us to implement X86ISelLowering::getPICJumpTableRelocBaseExpr which now calls it. This in turn allows us to eliminate the X86AsmPrinter::printPICJumpTableSetLabel method, which was the only overload of printPICJumpTableSetLabel. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94526 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-26add a new MachineJumpTableInfo::getJTISymbol method,Chris Lattner
use it to implement the default TargetLowering::getPICJumpTableRelocBaseExpr git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94523 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-26make MachineFunction keep track of its ID and make Chris Lattner
MachineFunctionAnalysis dole them out, instead of having AsmPrinter do both. Have the AsmPrinter::SetupMachineFunction method set the 'AsmPrinter::MF' variable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94509 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-26Add support for target-specific 32-bit custom-lowered Chris Lattner
jump table entries. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94505 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-25Rearrange handling of jump tables. Highlights:Chris Lattner
1. MachineJumpTableInfo is now created lazily for a function the first time it actually makes a jump table instead of for every function. 2. The encoding of jump table entries is now described by the MachineJumpTableInfo::JTEntryKind enum. This enum is determined by the TLI::getJumpTableEncoding() hook, instead of by lots of code scattered throughout the compiler that "knows" that jump table entries are always 32-bits in pic mode (for example). 3. The size and alignment of jump table entries is now calculated based on their kind, instead of at machinefunction creation time. Future work includes using the EntryKind in more places in the compiler, eliminating other logic that "knows" the layout of jump tables in various situations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94470 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-19Avoid including DebugInfo.h in AsmPrinter.hDevang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93864 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-16Replace DebugLocTuple with DILocation.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93630 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-04Change errs() to dbgs().David Greene
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92544 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-03improve portability to avoid conflicting with std::next in c++'0x.Chris Lattner
Patch by Howard Hinnant! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90365 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-30Remove ShortNames from getNodeLabel in DOTGraphTraitsTobias Grosser
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90134 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-30Instantiate DefaultDOTGraphTraitsTobias Grosser
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90133 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-14Do not merge jump tables this early. Branch folding will do any necessaryJim Grosbach
merges, and until then, it's useful to keep the tables separate for ease of manipulation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88806 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-14Add function to replace a destination MBB in a single jump tableJim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88804 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-12Add a bool flag to StackObjects telling whether they reference spillDavid Greene
slots. The AsmPrinter will use this information to determine whether to print a spill/reload comment. Remove default argument values. It's too easy to pass a wrong argument value when multiple arguments have default values. Make everything explicit to trap bugs early. Update all targets to adhere to the new interfaces.. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87022 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31Make -print-machineinstrs more readable.Dan Gohman
- Be consistent when referring to MachineBasicBlocks: BB#0. - Be consistent when referring to virtual registers: %reg1024. - Be consistent when referring to unknown physical registers: %physreg10. - Be consistent when referring to known physical registers: %RAX - Be consistent when referring to register 0: %reg0 - Be consistent when printing alignments: align=16 - Print jump table contents. - Don't print host addresses, in general. - and various other cleanups. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85682 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31Fix 80-column violation.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85653 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-28Allow constants of different types to share constant pool entriesDan Gohman
if they have compatible encodings. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85359 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-25Remove includes of Support/Compiler.h that are no longer needed after theNick Lewycky
VISIBILITY_HIDDEN removal. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85043 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-25Remove VISIBILITY_HIDDEN from class/struct found inside anonymous namespaces.Nick Lewycky
Chris claims we should never have visibility_hidden inside any .cpp file but that's still not true even after this commit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85042 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-09Add basic infrastructure and x86 support for preserving MachineMemOperandDan Gohman
information when unfolding memory references. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83656 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-30Remove dead code.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83181 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-25Improve MachineMemOperand handling.Dan Gohman
- Allocate MachineMemOperands and MachineMemOperand lists in MachineFunctions. This eliminates MachineInstr's std::list member and allows the data to be created by isel and live for the remainder of codegen, avoiding a lot of copying and unnecessary translation. This also shrinks MemSDNode. - Delete MemOperandSDNode. Introduce MachineSDNode which has dedicated fields for MachineMemOperands. - Change MemSDNode to have a MachineMemOperand member instead of its own fields with the same information. This introduces some redundancy, but it's more consistent with what MachineInstr will eventually want. - Ignore alignment when searching for redundant loads for CSE, but remember the greatest alignment. Target-specific code which previously used MemOperandSDNodes with generic SDNodes now use MemIntrinsicSDNodes, with opcodes in a designated range so that the SelectionDAG framework knows that MachineMemOperand information is available. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82794 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-15add hooks to hang target-specific goop off MachineModuleInfo,Chris Lattner
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
2009-08-28Reapply 79977.Devang Patel
Use MDNodes to encode debug info in llvm IR. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80406 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-26Revert 79977. It causes llvm-gcc bootstrap failures on some platforms.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80073 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-25Update DebugInfo interface to use metadata, instead of special named ↵Devang Patel
llvm.dbg.... global variables, to encode debugging information in llvm IR. This is mostly a mechanical change that tests metadata support very well. This change speeds up llvm-gcc by more then 6% at "-O0 -g" (measured by compiling InstructionCombining.cpp!) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79977 91177308-0d34-0410-b5e6-96231b3b80d8
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