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6e5ce287b0
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337 Commits

Author SHA1 Message Date
Chris Lattner
6e5ce287b0 add COFF support for COMDAT sections, patch by Nathan Jeffords! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103304 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-07 21:49:09 +00:00
Kevin Enderby
a6eeb6e226 Fix i386 relocations to Weak Definitions. The relocation entries should be 
external and the item to be relocated should not have the address of the
symbol added in.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103302 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-07 21:44:23 +00:00
Chris Lattner
eb40a0fd98 switch MCSectionCOFF from a syntactic to semantic representation, 
patch by Peter Housel!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103267 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-07 17:17:41 +00:00
Daniel Dunbar
8d627d3153 MC: Make setVariableValue check the redefinition condition a bit more strongly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103110 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-05 19:00:56 +00:00
Daniel Dunbar
08a408a4b3 MC: Rename MCSymbol::{g,s}etValue -> MCSymbol::{g,s}etVariableValue. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103095 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-05 17:41:00 +00:00
Daniel Dunbar
ae7fb0b03e MC/Mach-O/x86_64: Relocations in debug sections should use local relocations 
when possible.
 - <rdar://problem/7934873>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103092 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-05 17:22:39 +00:00
Mon P Wang
b9a01bcf48 Add support for assemblers that don't support periods in a name 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102594 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-29 04:00:56 +00:00
Dan Gohman
a5370f11d9 Add a const. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101777 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-19 15:39:27 +00:00
Chris Lattner
eef6d78be1 teach the x86 asm parser how to handle segment prefixes 
in memory operands.  rdar://7874844


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101661 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-17 18:56:34 +00:00
Chris Lattner
7834facff9 refactor .if handling code a bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101659 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-17 18:14:27 +00:00
Chris Lattner
d305035155 implement mc asmparser support for '.', which gets the 
current PC.  rdar://7834775

We now produce an identical .o file compared to the cctools
assembler for something like this:

_f0:
L0:
        jmp L1
        .long . - L0
L1:
        jmp A
        .long . - L1

        .zerofill __DATA,_bss,A,0



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101227 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 04:40:28 +00:00
Sean Callanan
535f4de469 Quick fix for build errors caused by undefined 
NULL.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101180 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-13 21:36:35 +00:00
Sean Callanan
9899f70a74 Fixed a nasty layering violation in the edis source 
code.  It used to #include the enhanced disassembly
information for the targets it supported straight
out of lib/Target/{X86,ARM,...} but now it uses a
new interface provided by MCDisassembler, and (so
far) implemented by X86 and ARM.

Also removed hacky #define-controlled initialization
of targets in edis.  If clients only want edis to
initialize a limited set of targets, they can set
--enable-targets on the configure command line.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101179 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-13 21:21:57 +00:00
Chris Lattner
287df1bc03 delete a forwarding function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100815 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-08 21:34:17 +00:00
Chris Lattner
74aae4726a move elf section uniquing to MCContext. Along the way 
merge XCore's section into MCSectionELF


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100812 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-08 21:26:26 +00:00
Chris Lattner
22772214de remove the TargetLoweringObjectFileMachO::getMachoSection 
api and update clients to use MCContext instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100808 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-08 20:40:11 +00:00
Chris Lattner
f0559e4b24 move macho section uniquing from MCParser and TLOF to MCContext where 
the compiler and asmparser now unique to the same sections.  This fixes
rdar://7835021.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100807 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-08 20:30:37 +00:00
Chris Lattner
79180e2ef5 Give AsmParser an option to control whether it finalizes 
the stream.  New demo:

$ clang asm.c -S -o - -emit-llvm | llc -filetype=obj -o t.o
$ otool -tv t.o
t.o:
(__TEXT,__text) section
_foo:
0000000000000000	subq	$0x08,%rsp
0000000000000004	movl	%edi,(%rsp)
0000000000000007	movl	%edi,%eax
0000000000000009	incl	%eax
000000000000000b	movl	%eax,(%rsp)
000000000000000e	movl	%eax,0x04(%rsp)
0000000000000012	addq	$0x08,%rsp
0000000000000016	ret



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100492 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-05 23:15:42 +00:00
Chris Lattner
3d22513611 eliminate the magic AbsoluteDebugSectionOffsets MAI hook, 
which is really a property of the section being referenced.
Add a predicate to MCSection to replace it.

Yay for reduction in magic.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100367 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-04 23:22:29 +00:00
Chris Lattner
0887fa0b8c isAbsoluteEHSectionOffsets always returns false, eliminate it 
and substitute false at the one call site.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100354 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-04 21:29:44 +00:00
Chris Lattner
d374087be5 fix an ugly wart in the MCInstPrinter api where the 
raw_ostream to print an instruction to had to be specified
at MCInstPrinter construction time instead of being able
to pick at each call to printInstruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100307 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-04 05:04:31 +00:00
Chris Lattner
58bc4dd4a9 add a twine form of MCStreamer::EmitRawText, and mc'ize 
a few more things in AsmPrinter.cpp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100294 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-03 22:12:35 +00:00
Chris Lattner
91bead7905 add a new EmitInlineAsm function to asmprinter to handle inline asm. 
If we have an MCAsmStreamer, we continue to emit asm textually, 
otherwise we (currently) emit an error to errs and ignore it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100289 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-03 21:35:55 +00:00
Chris Lattner
9b97a73ded Rip out the 'is temporary' nonsense from the MCContext interface to 
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
 2010-03-30 18:10:53 +00:00
Daniel Dunbar
ac2884a717 llvm-mc: Add a -mc-relax-all option, which relaxes every fixup. We always need 
exactly two passes in that case, and don't ever need to recompute any layout,
so this is a nice baseline for relaxation performance.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99563 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-25 22:49:09 +00:00
Daniel Dunbar
0cc8bd4861 MC: Stop restarting layout on every relaxation. 
- Still O(N^2), just a faster form, and now its the MCAsmLayout's fault.

On the .s I am tuning against (combine.s from 403.gcc):
--
ddunbar@lordcrumb:MC$ diff stats-before.txt stats-after.txt
5,10c5,10
<    1728 assembler - Number of assembler layout and relaxation steps
<    7707 assembler - Number of emitted assembler fragments
<  120588 assembler - Number of emitted object file bytes
< 2233448 assembler - Number of evaluated fixups
<    1727 assembler - Number of relaxed instructions
< 6723845 mcexpr    - Number of MCExpr evaluations
---
>      3 assembler - Number of assembler layout and relaxation steps
>   7707 assembler - Number of emitted assembler fragments
> 120588 assembler - Number of emitted object file bytes
>  14796 assembler - Number of evaluated fixups
>   1727 assembler - Number of relaxed instructions
>  67889 mcexpr    - Number of MCExpr evaluations
--
Feel free to LOL at the -before numbers, if you like.

I am a little surprised we make more than 2 relaxation passes. It's pretty
trivial for us to do relaxation out-of-order if that would give a speedup.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99543 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-25 19:35:56 +00:00
Daniel Dunbar
f476b00f51 MC: Simplify main section layout process by moving alignment into LayoutSection. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99529 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-25 18:16:42 +00:00
Daniel Dunbar
be644a38c0 MC: Sink Section address assignment into LayoutSection. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99528 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-25 18:16:38 +00:00
Daniel Dunbar
5a6e97a7e4 MC: Explicity track section and fragment ordinals. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99500 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-25 07:10:11 +00:00
Daniel Dunbar
5d428511ca MC: Route access to SectionData offset and file size through MCAsmLayout. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99474 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-25 02:00:07 +00:00
Daniel Dunbar
432cd5fd9b MC: Route access to Fragment offset and effective size through MCAsmLayout. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99473 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-25 02:00:02 +00:00
Daniel Dunbar
7c3d45a03e MC: Eliminate MC{Fragment,{Section,Symbol}Data}::getAddress. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99467 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-25 01:03:24 +00:00
Dan Gohman
6a4824c466 Docuemntation corrections from John Myers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99454 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-25 00:03:04 +00:00
Daniel Dunbar
207e06ea04 MC: Direct all {fragment,section,symbol} address access through the MCAsmLayout object. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99380 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-24 03:43:40 +00:00
Daniel Dunbar
337055e62f MC: Add TargetAsmBackend::MayNeedRelaxation, for checking whether a particular instruction + fixups might need relaxation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99249 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-23 03:13:05 +00:00
Daniel Dunbar
9799de910e MC: Tweak MCInstFragment to include the encoded data and fixups, so that we don't need to recompute them during relaxation. I will revisit this once all the other pieces of fast relaxation are in place. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99244 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-23 01:39:05 +00:00
Jeffrey Yasskin
1ccd91a5b1 Put MCSectionCOFF::Name into the MCContext instead of leaking it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99231 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-22 23:26:12 +00:00
Daniel Dunbar
3f4dcd92da MC: Add MCInstFragment, not used yet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99229 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-22 23:16:48 +00:00
Daniel Dunbar
9d39e616cc MC: Fix a few more cases we were passing an MCDataFragment when a MCFragment would do, and sprinkle in some const. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99218 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-22 21:49:41 +00:00
Daniel Dunbar
67c076cf59 MCInst: Add ::dump_pretty. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99216 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-22 21:49:34 +00:00
Daniel Dunbar
b751418a39 MC: Change MCObjectWriter::RecordRelocation to take an MCFragment (instead of a MCDataFragment). Object files should only need the generic MCFragment features. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99205 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-22 20:35:50 +00:00
Daniel Dunbar
2a6e3f5be2 MC: Eliminate MCFragment::getMaxFileSize. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99203 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-22 20:35:43 +00:00
Daniel Dunbar
8d39eb47d6 MC: Share the MCAsmLayout object, although its still not used for anything important. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99202 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-22 20:35:35 +00:00
Douglas Gregor
d4d4a90a8c Acccess control is lame 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98962 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-19 15:36:58 +00:00
Douglas Gregor
1a07bc5cf4 struct -> class, to silence a Clang warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98961 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-19 15:31:09 +00:00
Daniel Dunbar
b36052f0e4 MCCodeEmitter: Add target independent fixup flag for is-pc-relative. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98954 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-19 10:43:23 +00:00
Daniel Dunbar
cf871e5abf MC: Sink code emitter into MCAssembler. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98953 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-19 10:43:18 +00:00
Daniel Dunbar
2df4ceba15 MC/Mach-O: Move to MachObjectWriter.{h,cpp}. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98952 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-19 10:43:15 +00:00
Daniel Dunbar
53b2338a1d MC: Split MCObjectWriter out of MCAssembler.cpp. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98949 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-19 09:28:59 +00:00
Daniel Dunbar
b1e98945e4 MC/Mach-O: Lift the fixup evaluation and application up (to the same place), and eliminate MCAsmFixup::FixedValue. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98944 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-03-19 07:09:47 +00:00