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49 Commits

Author SHA1 Message Date
Daniel Dunbar d388c93f87 MC/AsmParser: Move .tbss and .zerofill parsing to Darwin specific parser. 
llvm-svn: 108180
 2010-07-12 19:37:35 +00:00
Daniel Dunbar 63a379dd5c MC/AsmParser: Move .desc parsing to Darwin specific parser. 
llvm-svn: 108179
 2010-07-12 19:22:53 +00:00
Daniel Dunbar b992f1a95b MC/AsmParser: Move .lsym parsing to Darwin specific parser. 
llvm-svn: 108176
 2010-07-12 19:08:25 +00:00
Daniel Dunbar ae9da1481a MC/AsmParser: Move some misc. Darwin directive handling to DarwinAsmParser. 
llvm-svn: 108174
 2010-07-12 18:49:22 +00:00
Daniel Dunbar c5011088cd MC/AsmParser: Add a DarwinAsmParser extension. 
- Currently initialization is a bit of a hack, but harmless. We need to rework
   various parts of target initialization to clean this up.

llvm-svn: 108165
 2010-07-12 18:12:02 +00:00
Daniel Dunbar dd41dcf270 MC/AsmParser: Switch a bunch of directive parsing to use accessors. 
llvm-svn: 108163
 2010-07-12 18:03:11 +00:00
Daniel Dunbar 86033407c9 MCAsmParser: Pull some directive handling out into a helper class, and change 
DirectiveMap to be based on MCAsmParserExtension.

llvm-svn: 108161
 2010-07-12 17:54:38 +00:00
Daniel Dunbar cc21af1dfb MC/AsmParser: Switch some directive parsing to use accessor methods. 
llvm-svn: 108160
 2010-07-12 17:45:27 +00:00
Daniel Dunbar af3d1de891 MC: Add MCAsmParserExtension, a base class for all the target/object specific 
classes which want to extend the basic asm parser.

llvm-svn: 108158
 2010-07-12 17:27:45 +00:00
Daniel Dunbar 4be8f2ffad MC: Move AsmParser::TokError to MCAsmParser(). 
llvm-svn: 108155
 2010-07-12 17:18:45 +00:00
Duncan Sands 41b4a6b36a Convert some tab stops into spaces. 
llvm-svn: 108130
 2010-07-12 08:16:59 +00:00
Kevin Enderby 082d0fd7ad Added the darwin .weak_def_can_be_hidden directive. 
llvm-svn: 107886
 2010-07-08 17:22:42 +00:00
Daniel Dunbar 0e980755d3 MC: Fix some stray hunks I didn't intend to commit. 
llvm-svn: 107428
 2010-07-01 20:48:51 +00:00
Daniel Dunbar 02877d6e85 MC: Pass the target instance to the AsmParser constructor. 
llvm-svn: 107426
 2010-07-01 20:41:56 +00:00
Daniel Dunbar 0aa4365e47 MC: Fix an error message. 
llvm-svn: 107424
 2010-07-01 20:20:01 +00:00
Duncan Sands 5667a08468 Remove unused calls to Lexer.getLoc and the pointless variable HasFillExpr. 
llvm-svn: 107136
 2010-06-29 13:24:40 +00:00
Kevin Enderby e233dda2e2 Added the darwin .secure_log_unique and .secure_log_reset directives. 
llvm-svn: 107077
 2010-06-28 21:45:58 +00:00
Daniel Dunbar 6738a2e39e llvm-mc: Use EmitIntValue where possible, which makes the API calls from the AsmParser and CodeGen line up better. 
llvm-svn: 104467
 2010-05-23 18:36:38 +00:00
Daniel Dunbar 8271d1bb4a llvm-mc: Use AddBlankLine in asm parser. This makes transliteration match the input much more closely, and also makes the API calls from the AsmParser and CodeGen line up better. 
llvm-svn: 104466
 2010-05-23 18:36:34 +00:00
Matt Fleming ec9d6faef0 Add support for parsing the ELF .type assembler directive. 
llvm-svn: 104316
 2010-05-21 11:36:59 +00:00
Chris Lattner 7cbfa4462f fix rdar://7986634 - match instruction opcodes case insensitively. 
llvm-svn: 104183
 2010-05-19 23:34:33 +00:00
Eric Christopher 5c87be766d Make EmitTBSSSymbol take a section argument so that we can find it later. 
Fix up callers and users.

llvm-svn: 104057
 2010-05-18 21:16:04 +00:00
Kevin Enderby 0510b48fd9 Added support in MC for Directional Local Labels. 
llvm-svn: 103989
 2010-05-17 23:08:19 +00:00
Eric Christopher 9635b3da6b More data/parsing support for tls directives. Add a few more testcases 
and cleanup comments as well.

llvm-svn: 103985
 2010-05-17 22:53:55 +00:00
Daniel Dunbar bb166bed40 MC/Mach-O/x86: Optimal nop sequences should only be used for the .text sections, not all sections in the text segment. 
llvm-svn: 103981
 2010-05-17 21:54:30 +00:00
Daniel Dunbar 9b4a824217 llvm-mc: Support reassignment of variables in one special case, when the 
variable has not yet been used in an expression. This allows us to support a few
cases that show up in real code (mostly because gcc generates it for Objective-C
on Darwin), without giving up a reasonable semantic model for assignment.

llvm-svn: 103950
 2010-05-17 17:46:23 +00:00
Eric Christopher 68b1bbe66a Assume that we'll handle mangling the symbols earlier and just put the 
symbol to the file as we have it.  Simplifies out tbss handling.

llvm-svn: 103928
 2010-05-17 02:13:02 +00:00
Eric Christopher 9fb6bb07ca Add AsmParser support for darwin tbss directive. 
Nothing uses this yet.

llvm-svn: 103757
 2010-05-14 01:50:28 +00:00
Eric Christopher bc81885ff7 Fix a couple of typos. 
llvm-svn: 103756
 2010-05-14 01:38:54 +00:00
Chris Lattner 8cb4728a15 fix rdar://7965971 and a fixme: use ParseIdentifier in 
ParseDirectiveDarwinZerofill instead of hard coding the
check for identifier. This allows quoted symbol names to
be used.

llvm-svn: 103682
 2010-05-13 00:10:34 +00:00
Daniel Dunbar deb7ba9cc0 MC: Reject attempts to define a variable symbol. 
llvm-svn: 103111
 2010-05-05 19:01:00 +00:00
Daniel Dunbar 7a989da0af MC: Rename MCSymbol::{g,s}etValue -> MCSymbol::{g,s}etVariableValue. 
llvm-svn: 103095
 2010-05-05 17:41:00 +00:00
Daniel Dunbar ce0c1e11ce llvm-mc: Fix case were we would skip a line in the .s file after an instruction 
match failure.

Also, fixes a few memory leak FIXMEs.

llvm-svn: 102986
 2010-05-04 00:33:07 +00:00
Chris Lattner 926885c090 refactor .if handling code a bit. 
llvm-svn: 101659
 2010-04-17 18:14:27 +00:00
Chris Lattner 6b55cb9cd8 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

llvm-svn: 101227
 2010-04-14 04:40:28 +00:00
Chris Lattner 2073112fc0 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.

llvm-svn: 100807
 2010-04-08 20:30:37 +00:00
Chris Lattner 3b21e4d404 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

llvm-svn: 100492
 2010-04-05 23:15:42 +00:00
Chris Lattner 9897043928 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.

llvm-svn: 99902
 2010-03-30 18:10:53 +00:00
Daniel Dunbar 5599256415 MC: Allow modifiers in MCSymbolRefExpr, and eliminate X86MCTargetExpr. 
- Although it would be nice to allow this decoupling, the assembler needs to be able to reason about MCSymbolRefExprs in too many places to make this viable. We can use a target specific encoding of the variant if this becomes an issue.
 - This patch also extends llvm-mc to support parsing of the modifiers, as opposed to lumping them in with the symbol.

llvm-svn: 98592
 2010-03-15 23:51:06 +00:00
Daniel Dunbar 322fec671b llvm-mc: Support -n, useful for comparing -integrated-as output since the 
compiler may not lead with the text section.

llvm-svn: 98418
 2010-03-13 02:20:57 +00:00
Daniel Dunbar 7e3283c055 Remove unneeded includes. 
llvm-svn: 98167
 2010-03-10 17:56:05 +00:00
Chris Lattner b973ea88b5 eliminate MCContext::CreateSymbol and CreateTemporarySymbol. 
Add a new GetOrCreateTemporarySymbol method and a version that
takes a twine.

llvm-svn: 98118
 2010-03-10 01:29:27 +00:00
Chris Lattner bb592eb9d0 pass in more section kinds, enough to get the .align 0x90 
stuff to emit optimal nops in the right places.

llvm-svn: 97233
 2010-02-26 18:32:26 +00:00
Kevin Enderby 7f99302dc9 This is a patch to the assembler frontend to detect when aligning a text 
section with TextAlignFillValue and calls EmitCodeAlignment() instead of
calling EmitValueToAlignment().  This allows x86 assembly code to be aligned
with optimal nops.

llvm-svn: 97158
 2010-02-25 18:46:04 +00:00
Daniel Dunbar d0c6d361fe MC/AsmParser: Attempt to constant fold expressions up-front. This ensures we avoid fixups for obvious cases like '-(16)'. 
llvm-svn: 96064
 2010-02-13 01:28:07 +00:00
Chris Lattner d45adf28de wirte up .file and .file to the mc asmparser. 
llvm-svn: 94438
 2010-01-25 19:02:58 +00:00
Chris Lattner 807a3bcbbb fix a parsing problem on instructions like: 
movw	$8, (_cost_table_-L97$pb)+66(%eax)

After the parens, we could still have a binop.

llvm-svn: 94345
 2010-01-24 01:07:33 +00:00
Chris Lattner 685508cf49 move the various directive enums out of the MCStreamer class 
into a new MCDirectives.h file.

llvm-svn: 94294
 2010-01-23 06:39:22 +00:00
Chris Lattner 5b0e01c54e move some files out of the llvm-mc tool into the MCParser library so 
other tools can link it.

llvm-svn: 94131
 2010-01-22 01:58:08 +00:00