Commit Graph

253 Commits

Author SHA1 Message Date
Devang Patel 148e9f0d3f Do not rely on magic "llvm.dbg.*" global variable name to find debug info.
PIC16 developers, please verify. 

llvm-svn: 78603
2009-08-10 22:11:20 +00:00
Owen Anderson c30530d105 Start moving TargetLowering away from using full MVTs and towards SimpleValueType, which will simplify the privatization of IntegerType in the future.
llvm-svn: 78584
2009-08-10 18:56:59 +00:00
Chris Lattner 7b01bf6125 fix some warnings for the MSVC build, by Yonggang Luo!
llvm-svn: 78571
2009-08-10 17:35:42 +00:00
Chris Lattner 591105c540 sink the 'name' and 'isdirective' state out of MCSection into its derived classes.
This totally optimizes PIC16 sections by not having an 'isdirective' bit anymore!! ;-)

llvm-svn: 78517
2009-08-08 23:39:42 +00:00
Chris Lattner 1cb9396f4f 1. Make MCSection an abstract class.
2. Move section switch printing to MCSection virtual method which takes a
   TAI.  This eliminates textual formatting stuff from TLOF.
3. Eliminate SwitchToSectionDirective, getSectionFlagsAsString, and 
   TLOFELF::AtIsCommentChar.

llvm-svn: 78510
2009-08-08 22:41:53 +00:00
Chris Lattner 26cc5b78d0 add new PIC16Section class, this time hopefully not breaking the build :)
llvm-svn: 78505
2009-08-08 21:37:01 +00:00
Daniel Dunbar 59410aaea6 Revert r78501, it doesn't build.
--- Reverse-merging r78501 into '.':
U    lib/Target/PIC16/PIC16TargetObjectFile.cpp
D    lib/Target/PIC16/PIC16Section.h

llvm-svn: 78503
2009-08-08 21:12:40 +00:00
Chris Lattner 4a4e4487fc make PIC16 create its own custom MCSection.
llvm-svn: 78501
2009-08-08 20:55:25 +00:00
Chris Lattner 36d04ec972 give pic16 a target-specific section creation name too
llvm-svn: 78496
2009-08-08 20:23:47 +00:00
Chris Lattner 302041d5c9 sink getOrCreateSection down into all the object file implementations,
now that they create *all* the sections.

llvm-svn: 78494
2009-08-08 20:14:13 +00:00
Chris Lattner b94284b5e2 make printInstruction return void since its result is omitted. Make the
error condition get trapped with an assert.

llvm-svn: 78449
2009-08-08 01:32:19 +00:00
Sanjiv Gupta 54c847cd6c Minor fixes to avoid using invalid debugloc.
llvm-svn: 78383
2009-08-07 11:00:02 +00:00
Benjamin Kramer 24ee4d0aa4 Simplify code and avoid allocations.
llvm-svn: 78382
2009-08-07 10:42:28 +00:00
Sanjiv Gupta 003dc1fa5b Run memsel inserter just before emit assembly to avoid tinkering by other passes.
llvm-svn: 78369
2009-08-07 05:44:27 +00:00
Devang Patel cd4688905f Use DebugInfoFinder
llvm-svn: 78334
2009-08-06 20:53:24 +00:00
Chris Lattner 1ff90134a4 Fix several fixmes and clean up code by sinking *all* section
creation activity into the target-specific subclasses of TLOF.
Before this, globals with explicit sections could be created by
the base class.

1. make getOrCreateSection protected, add a new getExplicitSectionGlobal
   pure virtual method to assign sections to globals with a specified
   section.
2. eliminate getSpecialCasedSectionGlobals, which is now PIC specific.
3. eliminate the getKindForNamedSection virtual method, which is
   now just a static method for ELF.
4. Add implementions of getExplicitSectionGlobal for ELF/PECOFF/Darwin/PIC16.
   They are now all detangled and understandable, woo! :)

llvm-svn: 78319
2009-08-06 16:39:58 +00:00
Chris Lattner b29996eb23 go through PIC16TargetObjectFile to make sections instead of
creating them directly in the pic16 asmprinter.

llvm-svn: 78317
2009-08-06 16:27:28 +00:00
Dan Gohman 477fd55c9a Fix a bug in the PIC16 backend.
llvm-svn: 78211
2009-08-05 16:46:43 +00:00
Dan Gohman f9bbcd1afd Major calling convention code refactoring.
Instead of awkwardly encoding calling-convention information with ISD::CALL,
ISD::FORMAL_ARGUMENTS, ISD::RET, and ISD::ARG_FLAGS nodes, TargetLowering
provides three virtual functions for targets to override:
LowerFormalArguments, LowerCall, and LowerRet, which replace the custom
lowering done on the special nodes. They provide the same information, but
in a more immediately usable format.

This also reworks much of the target-independent tail call logic. The
decision of whether or not to perform a tail call is now cleanly split
between target-independent portions, and the target dependent portion
in IsEligibleForTailCallOptimization.

This also synchronizes all in-tree targets, to help enable future
refactoring and feature work.

llvm-svn: 78142
2009-08-05 01:29:28 +00:00
Sanjiv Gupta b4c28d23e1 Legalize i64 store operations generated by inst-combine.
llvm-svn: 78082
2009-08-04 17:59:16 +00:00
Daniel Dunbar ed65bf420d Avoid compiler warning (in -Asserts mode)
llvm-svn: 78070
2009-08-04 16:46:12 +00:00
Daniel Dunbar c3719c36e6 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 31b44e8f6c 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 3ea23cff65 PIC16 TAI doesn't need TM
llvm-svn: 77867
2009-08-02 04:41:14 +00:00
Chris Lattner b25afe081c 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
Daniel Dunbar cc5e54e986 Fix a possible crash on delete of an uninitialized variable.
llvm-svn: 77846
2009-08-02 01:25:15 +00:00
Dan Gohman 321dc97adf Don't call SectionForGlobal for hasAvailableExternallyLinkage()
variables either.

llvm-svn: 77844
2009-08-02 01:18:44 +00:00
Chris Lattner a17d2e5c21 don't call SectionForGlobal on declarations, you can't tell the section a
declaration will end up in.

llvm-svn: 77843
2009-08-02 01:02:43 +00:00
Chris Lattner 73d577c933 Make SectionKind::get() private.
llvm-svn: 77835
2009-08-02 00:02:44 +00:00
Chris Lattner d5c01136ef fix a fixme by sinking various target-specific directives down into
the appropriate subclasses.

llvm-svn: 77815
2009-08-01 21:56:13 +00:00
Chris Lattner 26fb277f92 it turns out that isWeak() was basically dead anyway. Kill off SectionInfo :-/
llvm-svn: 77812
2009-08-01 21:46:23 +00:00
Chris Lattner c9c277ba0f Change SectionKind to be a property that is true of a *section*, it
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.

llvm-svn: 77803
2009-08-01 21:11:14 +00:00
Chris Lattner 4d2c0f9008 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
Sanjiv Gupta 7de154708a define target names for std libcalls.
llvm-svn: 77667
2009-07-31 07:35:57 +00:00
Sanjiv Gupta 8787861004 Keep track of references to mem(cpy,move,set) and then print only one extern
declaration for them.

llvm-svn: 77578
2009-07-30 04:15:15 +00:00
Owen Anderson 4056ca9568 Move types back to the 2.5 API.
llvm-svn: 77516
2009-07-29 22:17:13 +00:00
Chris Lattner 5034329f8d pass the mangler down into the various SectionForGlobal methods.
No functionality change.

llvm-svn: 77432
2009-07-29 05:09:30 +00:00
Chris Lattner e1a70c964f fix a casting problem on the llvm-x86_64-linux tester
llvm-svn: 77295
2009-07-28 03:20:34 +00:00
Chris Lattner 5e693ed07b 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 697150ec0c don't copy TargetLowering.
llvm-svn: 77293
2009-07-28 03:05:40 +00:00
Sanjiv Gupta 96b3d4a2f9 Remove duplicate entries while printing decls for external symbols.
Some libcall names are same, so they were getting printed twice.

llvm-svn: 77215
2009-07-27 18:04:34 +00:00
Chris Lattner 86b7255776 Eliminate getNamed/getUnnamedSection, adding a new and unified getOrCreateSection
instead.

llvm-svn: 77186
2009-07-27 06:17:14 +00:00
Chris Lattner 149465ea06 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
Sanjiv Gupta c8885129d8 Generate a libcall for i8 multiply.
llvm-svn: 77179
2009-07-27 02:44:46 +00:00
Sanjiv Gupta e334b34bfd fixed incorrect lowering of ISD::SUB node. SUB has only one result value.
It wasn't caught during tests because we never got a sub generated, (i8 was always getting promoted to int, which in turn was broken into subc/sube). Though the optimizer leaves an i8 sub now. 

llvm-svn: 77178
2009-07-27 02:26:06 +00:00
Chris Lattner 06ad4948f5 reduce indentation
llvm-svn: 77161
2009-07-26 18:08:15 +00:00
Sanjiv Gupta fc4d4994ee Fix the breakage caused by 76950.
PIC16 has special naming conventions for variables having section names specified via section attribute.

llvm-svn: 77153
2009-07-26 10:25:01 +00:00
Daniel Dunbar ee01b242e8 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 bc981d8efa Kill Target specific ModuleMatchQuality stuff.
- This was overkill and inconsistently implemented.

llvm-svn: 77114
2009-07-26 02:22:58 +00:00
Chris Lattner 0af00396a7 make SectionKind be a first-class pod struct instead of just
an enum.

llvm-svn: 77096
2009-07-25 23:21:55 +00:00