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2009-08-01Minor code simplifications.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77768 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-01The X86 maximal stack alignment calculator preserves the CFG. Also,Dan Gohman
be more careful about the return value of runOnMachineFunction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77758 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-01X86 floating-point passes don't modify the CFG.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77757 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31Use setPreservesAll in X86CodeEmitter.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77755 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31llvm-mc: A few more parsing / match tweaks.Daniel Dunbar
- Operands which are just a label should be parsed as immediates, not memory operands (from the assembler perspective). - Match a few more flavors of immediates. - Distinguish match functions for memory operands which don't take a segment register. - We match the .s for "hello world" now! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77745 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31PreferredEHDataFormat is always call with data and global, but this wholeChris Lattner
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
2009-07-31llvm-mc/X86: Sketch match functions for immediates and memory operands.Daniel Dunbar
Also, change scale value to always be 1 when unspecified to machine MachineInst encoding. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77728 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31Move a few more APIs back to 2.5 forms. The only remaining ones left to ↵Owen Anderson
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
2009-07-31Whitespace and 80-col cleanup.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77718 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31switch off of 'Section' onto MCSection. We're not properly usingChris Lattner
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
2009-07-31refactor section construction in TLOF to be through an explicitChris Lattner
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
2009-07-31Fix a struct/class mismatch, to silence a MSVC warning.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77673 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31llvm-mc: Match a few X86 instructions.Daniel Dunbar
- This is "experimental" code, I am feeling my way around and working out the best way to do things (and learning tblgen in the process). Comments welcome, but keep in mind this stuff will change radically. - This is enough to match "subb" and friends, but not much else. The next step is to automatically generate the matchers for individual operands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77657 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-30Minor whitespace tidiness.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77602 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-30Rename GRAD to GR32_AD, to follow the naming convention of otherDan Gohman
classes. And define its SubRegClassList. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77601 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-30Add a note.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77584 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-30Optimize some common usage patterns of atomic built-ins ↵Evan Cheng
__sync_add_and_fetch() and __sync_sub_and_fetch. When the return value is not used (i.e. only care about the value in the memory), x86 does not have to use add to implement these. Instead, it can use add, sub, inc, dec instructions with the "lock" prefix. This is currently implemented using a bit of instruction selection trick. The issue is the target independent pattern produces one output and a chain and we want to map it into one that just output a chain. The current trick is to select it into a merge_values with the first definition being an implicit_def. The proper solution is to add new ISD opcodes for the no-output variant. DAG combiner can then transform the node before it gets to target node selection. Problem #2 is we are adding a whole bunch of x86 atomic instructions when in fact these instructions are identical to the non-lock versions. We need a way to add target specific information to target nodes and have this information carried over to machine instructions. Asm printer (or JIT) can use this information to add the "lock" prefix. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77582 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-30Add a new register class to describe operands that can't be SP,Dan Gohman
due to x86 encoding restrictions. This is currently off by default because it may cause code quality regressions. This is for PR4572. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77565 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-30Eliminate a bunch of redundant tables.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77558 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-30Use array_endof instead of doing it manually.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77553 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-291. Introduce a new TargetOperandInfo::getRegClass() helper methodChris Lattner
and convert code to using it, instead of having lots of things poke the isLookupPtrRegClass() method directly. 2. Make PointerLikeRegClass contain a 'kind' int, and store it in the existing regclass field of TargetOperandInfo when the isLookupPtrRegClass() predicate is set. Make getRegClass pass this into TargetRegisterInfo::getPointerRegClass(), allowing targets to have multiple ptr_rc things. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77504 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29Give getPointerRegClass() a "kind" value so that targets can Chris Lattner
support multiple different pointer register classes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77501 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29Add llvm_unreachable for ... unreachable code!Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77480 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29more syntactic cleanups.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77442 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29minor smallvector cleanupsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77441 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29whitespace cleanup.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77438 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29pass the mangler down into the various SectionForGlobal methods.Chris Lattner
No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77432 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29Fix comment.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77415 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29Change the "PreferredEHDataFormat" from "absptr" if we're on a Darwin system >Bill Wendling
Leopard. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77414 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29Add support for gcc __builtin_ia32_ptest{z,c,nzc} intrinsics. LowerEric Christopher
to ptest instruction plus setcc. Revamp ptest instruction. Add test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77407 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29Match X86 register names to number.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77404 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-28Move X86 instruction parsing into X86/AsmParser.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77384 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-28Darwin outputs (DW_EH_PE_pcrel | DW_EH_PE_indirect | DW_EH_PE_sdata4) when we'reBill Wendling
dealing with Data. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77372 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-28Rename MDNode.h header. It defines MDnode and other metadata classes.Devang Patel
New name is Metadata.h. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77370 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-28Return ConstantVector to 2.5 API.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77366 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-28Provide generic MCAsmParser when constructing target specific parsers.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77362 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-28the apple "ld_classic" linker doesn't support .literal16 in 32-bitChris Lattner
mode, and "ld64" (the default linker) falls back to it in -static mode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77334 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-28Rip all of the global variable lowering logic out of TargetAsmInfo. SinceChris Lattner
it is highly specific to the object file that will be generated in the end, this introduces a new TargetLoweringObjectFile interface that is implemented for each of ELF/MachO/COFF/Alpha/PIC16 and XCore. Though still is still a brutal and ugly refactoring, this is a major step towards goodness. This patch also: 1. fixes a bunch of dangling pointer problems in the PIC16 backend. 2. disables the TargetLowering copy ctor which PIC16 was accidentally using. 3. gets us closer to xcore having its own crazy target section flags and pic16 not having to shadow sections with its own objects. 4. fixes wierdness where ELF targets would set CStringSection but not CStringSection_. Factor the code better. 5. fixes some bugs in string lowering on ELF targets. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77294 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-27llvm-mc: Move AsmLexer::getCurStrVal to StringRef based API.Daniel Dunbar
- My DFS traversal of LLVM is, at least for now, nearly complete! :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77258 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-27hoist MCContext/MCStreamer up to AsmPrinter since we're going to start creatingChris Lattner
MCSections soon instead of Section for all targets, and we need something to own them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77252 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-27Move ConstantFP construction back to the 2.5-ish API.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77247 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-27make COFF work like ELF and macho, by splitting out into its ownChris Lattner
header even though there is only one COFF target. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77204 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-27apparently we have "windows" and "coff", which are different(?)Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77197 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-2732-bit darwin targets support .literal16 too.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77191 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-27Eliminate getNamed/getUnnamedSection, adding a new and unified ↵Chris Lattner
getOrCreateSection instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77186 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-27Eliminate SectionFlags, just embed a SectionKind into SectionChris Lattner
instead and drive things based off of that. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77184 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-26untangle a TargetAsmInfo hack where ELFTargetAsmInfo would create aChris Lattner
'unnamed' bss section, but some impls would want a named one. Since they don't have consistent behavior, just make each target do their own thing, instead of doing something "sortof common" then having targets change immutable objects later. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77165 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-26Eliminate some uses of DOUT, cerr, and getNameStart().Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77145 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-26remove a densemap from TargetAsmInfo that was uniquing the targetflags strings,Chris Lattner
just use a smallstring instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77144 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-26rename Mergable -> Mergeable and Writable -> WriteableChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77138 91177308-0d34-0410-b5e6-96231b3b80d8
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