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Commit Graph

2428 Commits

Author SHA1 Message Date
Chris Lattner
8df05f13da make MergeableCString be a SectionKind "abstract class", and
add new concrete versions for 1/2/4-byte mergable strings.

These are not actually created yet.

llvm-svn: 78055
2009-08-04 05:35:56 +00:00
Chris Lattner
53ca934380 switch ppc to using SwitchToSection instead of textual section stuff.
llvm-svn: 78013
2009-08-03 22:52:21 +00:00
Daniel Dunbar
9e079eec0c Move most targets TargetMachine constructor to only taking a target triple.
- The C, C++, MSIL, and Mips backends still need the module.

llvm-svn: 77927
2009-08-02 23:37:13 +00:00
Daniel Dunbar
0b82c938fe Normalize Subtarget constructors to take a target triple string instead of
Module*.

Also, dropped uses of TargetMachine where unnecessary. The only target which
still takes a TargetMachine& is Mips, I would appreciate it if someone would
normalize this to match other targets.

llvm-svn: 77918
2009-08-02 22:11:08 +00:00
Chris Lattner
738a9ba448 move dwarf debug info section selection stuff from TAI to
TLOF, unifying all the dwarf targets at the same time.

llvm-svn: 77889
2009-08-02 07:24:22 +00:00
Chris Lattner
6f4a366e35 convert EHFrameSection to be managed by TLOF instead of TAI.
llvm-svn: 77888
2009-08-02 06:52:36 +00:00
Chris Lattner
c388490738 Move the getInlineAsmLength virtual method from TAI to TII, where
the only real caller (GetFunctionSizeInBytes) uses it.

The custom ARM implementation of this is basically reimplementing
an assembler poorly for negligible gain.  It should be removed 
IMNSHO, but I'll leave that to ARMish folks to decide.

llvm-svn: 77877
2009-08-02 05:20:37 +00:00
Chris Lattner
f13912f657 remove the dead ELFTargetAsmInfo.h/cpp file. TargetAsmInfo
defaults to being ELF.

llvm-svn: 77866
2009-08-02 04:33:09 +00:00
Chris Lattner
b5ceb50677 remove TargetAsmInfo::TM, which is now dead. The basic TAI class now
no longer depends on TM!

llvm-svn: 77863
2009-08-02 04:27:24 +00:00
Chris Lattner
e0c440fd9f remove the x86/ppc impls of getEHGlobalPrefix, which is already dead.
llvm-svn: 77861
2009-08-02 04:13:22 +00:00
Chris Lattner
1c44a63eba move getDwarfExceptionSection from TAI to TLOF and rename it to
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.

llvm-svn: 77847
2009-08-02 01:34:32 +00:00
Chris Lattner
e5e68589da don't override the default of this, the only difference is \t instead of ' '.
llvm-svn: 77838
2009-08-02 00:12:20 +00:00
Chris Lattner
4cbb1c0c3f REmove dead fields of TAI.
llvm-svn: 77820
2009-08-01 22:40:22 +00:00
Dan Gohman
8961d1aaa3 Fix typos in comments.
llvm-svn: 77806
2009-08-01 21:25:00 +00:00
Chris Lattner
70c133d1d9 remove the PPCLinuxTargetAsmInfo implementation of PreferredEHDataFormat,
because it just calls the default impl.

Remove the PPCDarwinTargetAsmInfo version of PreferredEHDataFormat because
it just returns DW_EH_PE_absptr unless on 10.6.  However, 10.6 doesn't support
PPC, so the default impl is just fine.

llvm-svn: 77724
2009-07-31 20:43:26 +00:00
Chris Lattner
75b7692e66 switch off of 'Section' onto MCSection. We're not properly using
MCSection subclasses yet, but this is a step in the right direction.

llvm-svn: 77708
2009-07-31 18:48:30 +00:00
Dan Gohman
f28b3bb262 Reapply r77654 with a fix: MachineFunctionPass's getAnalysisUsage
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.

llvm-svn: 77691
2009-07-31 18:16:33 +00:00
Chris Lattner
c156a00641 refactor section construction in TLOF to be through an explicit
initialize method, which can be called when an MCContext is available.

llvm-svn: 77687
2009-07-31 17:42:42 +00:00
Daniel Dunbar
60d71a790c Revert r77654, it appears to be causing llvm-gcc bootstrap failures, and many
failures when building assorted projects with clang.

--- Reverse-merging r77654 into '.':
U    include/llvm/CodeGen/Passes.h
U    include/llvm/CodeGen/MachineFunctionPass.h
U    include/llvm/CodeGen/MachineFunction.h
U    include/llvm/CodeGen/LazyLiveness.h
U    include/llvm/CodeGen/SelectionDAGISel.h
D    include/llvm/CodeGen/MachineFunctionAnalysis.h
U    include/llvm/Function.h
U    lib/Target/CellSPU/SPUISelDAGToDAG.cpp
U    lib/Target/PowerPC/PPCISelDAGToDAG.cpp
U    lib/CodeGen/LLVMTargetMachine.cpp
U    lib/CodeGen/MachineVerifier.cpp
U    lib/CodeGen/MachineFunction.cpp
U    lib/CodeGen/PrologEpilogInserter.cpp
U    lib/CodeGen/MachineLoopInfo.cpp
U    lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
D    lib/CodeGen/MachineFunctionAnalysis.cpp
D    lib/CodeGen/MachineFunctionPass.cpp
U    lib/CodeGen/LiveVariables.cpp

llvm-svn: 77661
2009-07-31 03:02:41 +00:00
Dan Gohman
645f1122c0 Manage MachineFunctions with an analysis Pass instead of the Annotable
mechanism. To support this, make MachineFunctionPass a little more
complete.

llvm-svn: 77654
2009-07-31 01:52:50 +00:00
Owen Anderson
881d928f9b Move types back to the 2.5 API.
llvm-svn: 77516
2009-07-29 22:17:13 +00:00
Chris Lattner
18af1b233a Give getPointerRegClass() a "kind" value so that targets can
support multiple different pointer register classes.

llvm-svn: 77501
2009-07-29 20:31:52 +00:00
Chris Lattner
5c3e1e0d0c pass the mangler down into the various SectionForGlobal methods.
No functionality change.

llvm-svn: 77432
2009-07-29 05:09:30 +00:00
Bill Wendling
ca087a1582 Change the "PreferredEHDataFormat" from "absptr" if we're on a Darwin system >
Leopard.

llvm-svn: 77414
2009-07-29 00:59:34 +00:00
Bill Wendling
41139f3ed4 Output the correct format for Darwin.
llvm-svn: 77376
2009-07-28 22:03:50 +00:00
Devang Patel
cb23671431 Rename MDNode.h header. It defines MDnode and other metadata classes.
New name is Metadata.h.

llvm-svn: 77370
2009-07-28 21:49:47 +00:00
Chris Lattner
c74586940a the apple "ld_classic" linker doesn't support .literal16 in 32-bit
mode, and "ld64" (the default linker) falls back to it in -static
mode.

llvm-svn: 77334
2009-07-28 17:50:28 +00:00
Chris Lattner
55461787cc Rip all of the global variable lowering logic out of TargetAsmInfo. Since
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.

llvm-svn: 77294
2009-07-28 03:13:23 +00:00
Chris Lattner
cd7d963b75 Eliminate getNamed/getUnnamedSection, adding a new and unified getOrCreateSection
instead.

llvm-svn: 77186
2009-07-27 06:17:14 +00:00
Chris Lattner
a2b00bdd7a Eliminate SectionFlags, just embed a SectionKind into Section
instead and drive things based off of that.

llvm-svn: 77184
2009-07-27 05:32:16 +00:00
Chris Lattner
0f4d60ca90 untangle a TargetAsmInfo hack where ELFTargetAsmInfo would create a
'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.

llvm-svn: 77165
2009-07-26 19:23:28 +00:00
Daniel Dunbar
75a66c519b Eliminate some uses of DOUT, cerr, and getNameStart().
llvm-svn: 77145
2009-07-26 07:49:05 +00:00
Daniel Dunbar
a7a01acc7c Factor commonality in triple match routines into helper template for registering
classes, and migrate existing targets over.

llvm-svn: 77126
2009-07-26 05:03:33 +00:00
Daniel Dunbar
49987490c2 Kill Target specific ModuleMatchQuality stuff.
- This was overkill and inconsistently implemented.

llvm-svn: 77114
2009-07-26 02:22:58 +00:00
Daniel Dunbar
038a7f0d35 Remove Value::{isName, getNameRef}.
Also, change MDString to use a StringRef.

llvm-svn: 77098
2009-07-25 23:55:21 +00:00
Chris Lattner
15b3d2039f this is (unfortunately) several changes mixed together:
1. Spell SectionFlags::Writeable as "Writable".
2. Add predicates for deriving SectionFlags from SectionKinds.
3. Sink ELF-specific getSectionPrefixForUniqueGlobal impl into
   ELFTargetAsmInfo.
4. Fix SectionFlagsForGlobal to know that BSS/ThreadBSS has the
   BSS bit set (the real fix for PR4619).
5. Fix isSuitableForBSS to not put globals with explicit sections
   set in BSS (which was the reason #4 wasn't fixed earlier).
6. Remove my previous hack for PR4619.

llvm-svn: 77085
2009-07-25 18:57:34 +00:00
Daniel Dunbar
d699ffc2ac Simplify JIT target selection.
- Instead of requiring targets to define a JIT quality match function, we just
   have them specify if they support a JIT.

 - Target selection for the JIT just gets the host triple and looks for the best
   target which matches the triple and has a JIT.

llvm-svn: 77060
2009-07-25 10:09:50 +00:00
Daniel Dunbar
284fe09fe4 Add new helpers for registering targets.
- Less boilerplate == good.

llvm-svn: 77052
2009-07-25 06:49:55 +00:00
Eli Friedman
1be7dfb1aa Remove unused member functions.
llvm-svn: 76960
2009-07-24 07:43:59 +00:00
Chris Lattner
13611a24d8 use section flags more correctly.
llvm-svn: 76944
2009-07-24 04:08:17 +00:00
Chris Lattner
6339e5e786 reduce api exposure: clients shouldn't call SectionKindForGlobal directly.
llvm-svn: 76941
2009-07-24 03:49:17 +00:00
Dan Gohman
62c8b40b66 Remove the IA-64 backend.
llvm-svn: 76920
2009-07-24 00:30:09 +00:00
Evan Cheng
82499c09ff Let each target determines whether a machine instruction is dead. If true, that allows late codeine passes to delete it.
This is considered a workaround. The problem is some targets are not modeling side effects correctly. PPC is apparently one of those. This patch allows ppc llvm-gcc to bootstrap on Darwin. Once we find out which instruction definitions are wrong, we can remove the PPCInstrInfo workaround.

llvm-svn: 76703
2009-07-22 00:25:27 +00:00
Owen Anderson
cc287b28c9 Get rid of the Pass+Context magic.
llvm-svn: 76702
2009-07-22 00:24:57 +00:00
Chris Lattner
3d4ab7a231 make AsmPrinter::doFinalization iterate over the global variables
and call PrintGlobalVariable, allowing elimination and simplification
of various targets.

llvm-svn: 76604
2009-07-21 18:38:57 +00:00
Bill Wendling
0407ebb4f7 Rename Mangler linkage enums to something less gross.
llvm-svn: 76456
2009-07-20 19:41:27 +00:00
Bill Wendling
1a10a060cb Add plumbing for the `linker_private' linkage type. This type is meant for
"private" symbols which the assember shouldn't strip, but which the linker may
remove after evaluation. This is mostly useful for Objective-C metadata.

This is plumbing, so we don't have a use of it yet. More to come, etc.

llvm-svn: 76385
2009-07-20 01:03:30 +00:00
Daniel Dunbar
aca95eac72 Add dependencies from TargetInfo onto .td generation.
- Shouldn't really be necessary, but currently .inc files get included into
   some main target headers.

llvm-svn: 76349
2009-07-19 00:21:12 +00:00
Daniel Dunbar
960ef321ca Put Target definitions inside Target specific header, and llvm namespace.
llvm-svn: 76344
2009-07-18 23:03:22 +00:00
Jeffrey Yasskin
1669f312b5 r76102 added the MachineCodeEmitter::processDebugLoc call and called it from
the X86 Emitter.  This patch extends that to the rest of the targets that can
write to a MachineCodeEmitter: ARM, Alpha, and PPC.

llvm-svn: 76211
2009-07-17 18:49:39 +00:00