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301 Commits

Author SHA1 Message Date
Rafael Espindola
ce9b27497e Add support for leb128 of absolute expressions. 
llvm-svn: 113691
 2010-09-11 16:45:15 +00:00
Chris Lattner
ffe1efe7ef fix the asmparser so that the target is responsible for skipping to 
the end of the line on a parser error, allowing skipping to happen
for syntactic errors but not for semantic errors.  Before we would
miss emitting a diagnostic about the second line, because we skipped
it due to the semantic error on the first line:

  foo %eax
  bar %al

This fixes rdar://8414033 - llvm-mc ignores lines after an invalid instruction mnemonic errors

llvm-svn: 113688
 2010-09-11 16:18:25 +00:00
Daniel Dunbar
547563df12 llvm-mc: Don't crash when using -n and we see a directive before the initial section. 
- This is annoying, because we have to scatter this check everywhere that could emit real data, but I see no better solution.

llvm-svn: 113552
 2010-09-09 22:42:59 +00:00
Daniel Dunbar
07c0ca2a51 llvm-mc: Make sure we exit != 0 if any errors are encountered. 
llvm-svn: 113551
 2010-09-09 22:42:56 +00:00
Chris Lattner
0e0f9094e9 change the MC "ParseInstruction" interface to make it the 
implementation's job to check for and lex the EndOfStatement
marker.

llvm-svn: 113347
 2010-09-08 05:10:46 +00:00
Benjamin Kramer
dd16ed1618 Add AsmParser support for the ELF .previous directive. Patch by Roman Divacky. 
llvm-svn: 112849
 2010-09-02 18:53:37 +00:00
Kevin Enderby
bb121d1dc2 Change the parsing of .loc back to allow the LineNumber field to be optional as 
it is with other assemblers.

llvm-svn: 111967
 2010-08-24 21:14:47 +00:00
Kevin Enderby
024b04ad93 First bit of support for the dwarf .loc directive. This patch updates the 
needed parsing for the .loc directive and saves the current info from that
into the context.  The next patch will take the current loc info after an
instruction is assembled and save that info into a vector for each section for
use to build the line number tables.  The patch after that will encode the info
from those vectors into the output file as the dwarf line tables.

llvm-svn: 111956
 2010-08-24 20:32:42 +00:00
Daniel Dunbar
bd6901864b MC/AsmParser: Change ParseExpression to use ParseIdentifier(), to support 
dollars in identifiers.

llvm-svn: 111946
 2010-08-24 19:13:42 +00:00
Daniel Dunbar
7859dfd71b MC/Parser: Accept leading dollar signs in identifiers. 
- Implemented by manually splicing the tokens. If this turns out to be
   problematically platform specific, a more elegant solution would be to
   implement some context dependent lexing support.

llvm-svn: 111934
 2010-08-24 18:12:12 +00:00
Chris Lattner
115fdde871 fix rdar://7997827 - Accept and ignore LL and ULL suffixes on integer literals. 
Also fix 0b010 syntax to actually work while we're at it :-)

llvm-svn: 111876
 2010-08-24 00:43:25 +00:00
Daniel Dunbar
f2b4982344 MC/AsmParser: Push the burdon of emitting diagnostics about unmatched 
instructions onto the target specific parser, which can do a better job.

llvm-svn: 110889
 2010-08-12 00:55:38 +00:00
Daniel Dunbar
4882ffc373 llvm-mc: Add -show-inst-operands, for dumping the parsed instruction representation before matching. 
llvm-svn: 110791
 2010-08-11 06:37:09 +00:00
Daniel Dunbar
ee80a239ed MCAsmParser: Add dump() hook to MCParsedAsmOperand. 
llvm-svn: 110790
 2010-08-11 06:37:04 +00:00
Daniel Dunbar
f7233103ff MC/AsmParser: Fix a bug in macro argument parsing, which was dropping 
parentheses from argument lists.

llvm-svn: 110692
 2010-08-10 17:38:52 +00:00
Daniel Dunbar
7972ac4c88 MC: Destroy Macro instances. 
llvm-svn: 109720
 2010-07-29 01:51:55 +00:00
Kevin Enderby
3f202e65e8 Added first bit of support for the dwarf .file directive. This patch collects 
the info from the .file directive and makes file and directory tables that
will eventually be put out as part of the dwarf info in the output file.

llvm-svn: 109651
 2010-07-28 20:55:35 +00:00
Matt Fleming
d968913a7e Add some more handlers for ELF section directives. 
llvm-svn: 108928
 2010-07-20 21:12:46 +00:00
Daniel Dunbar
f58b5d7ad0 TblGen/AsmMatcher: Add support for honoring instruction Requires<[]> attributes as part of the matcher. 
- Currently includes a hack to limit ourselves to "In32BitMode" and "In64BitMode", because we don't have the other infrastructure to properly deal with setting SSE, etc. features on X86.

llvm-svn: 108677
 2010-07-19 05:44:09 +00:00
Eli Friedman
5c629bb609 Make .align parse correctly on platforms where .align is measured in bytes. 
llvm-svn: 108674
 2010-07-19 04:17:25 +00:00
Daniel Dunbar
5b6b28e897 MC/AsmParser: Stop playing unsafe member function pointer calls, this isn't 
portable enough.
 - Downside is we now double dispatch through a stub function, but this isn't
   performance critical.

llvm-svn: 108661
 2010-07-18 22:22:07 +00:00
Daniel Dunbar
79350dba6e MC/AsmParser: Fix .abort and .secure_log_unique to accept arbitrary token 
sequences, not just strings.

llvm-svn: 108655
 2010-07-18 20:15:59 +00:00
Daniel Dunbar
7d498fb3fc MC/AsmParser: Add macro argument substitution support. 
llvm-svn: 108654
 2010-07-18 19:00:10 +00:00
Daniel Dunbar
312b5e0d2b MC/AsmParser: Add basic support for macro instantiation. 
llvm-svn: 108653
 2010-07-18 18:54:11 +00:00
Daniel Dunbar
4ee82b993f MC/AsmParser: Add basic parsing support for .macro definitions. 
llvm-svn: 108652
 2010-07-18 18:47:21 +00:00
Daniel Dunbar
44cddadb54 MC/AsmParser: Add .macros_{off,on} support, not that makes sense since we don't 
support macros.

llvm-svn: 108649
 2010-07-18 18:38:02 +00:00
Daniel Dunbar
cf14c09d6a MC/AsmParser: Use Error() instead of calling PrintMessage() directly. 
llvm-svn: 108648
 2010-07-18 18:31:45 +00:00
Daniel Dunbar
2b388a1255 MC/AsmParser: Fix TokError() to accept a Twine. 
llvm-svn: 108647
 2010-07-18 18:31:42 +00:00
Daniel Dunbar
9a7d4a5dee MC/AsmParser: Hide the AsmParser implementation. 
llvm-svn: 108646
 2010-07-18 18:31:38 +00:00
Eli Friedman
e0fd89f780 Start of .sleb128/.uleb128 parsing support. 
llvm-svn: 108612
 2010-07-17 06:27:28 +00:00
Eli Friedman
beee77c1c5 Work-in-progress parsing for ELF .section directive. 
llvm-svn: 108609
 2010-07-17 04:29:04 +00:00
Eli Friedman
e758dc641d Add support for parsing .size directives for ELF. 
llvm-svn: 108606
 2010-07-17 03:09:18 +00:00
Daniel Dunbar
4dca88a1e9 MC/AsmParser: Lift Run() and TargetParser to base class. 
Also, add constructor function for creating AsmParser instances.

llvm-svn: 108604
 2010-07-17 02:26:10 +00:00
Chris Lattner
403b684f74 fix indentation and 80 cols 
llvm-svn: 108460
 2010-07-15 21:19:31 +00:00
Benjamin Kramer
da3e6cdb26 Don't pass StringRef by reference. 
llvm-svn: 108366
 2010-07-14 22:38:02 +00:00
Daniel Dunbar
6b7349fa24 MC/AsmParser: Move ELF specific parser to ELFAsmParser.cpp. 
llvm-svn: 108196
 2010-07-12 21:23:32 +00:00
Daniel Dunbar
cb36453016 MC/AsmParser: Move Darwin specific parse to DarwinAsmParser.cpp. 
llvm-svn: 108193
 2010-07-12 20:51:51 +00:00
Daniel Dunbar
9144ed1e2e MC/AsmParser: Move .section parsing to Darwin specific parser. 
llvm-svn: 108190
 2010-07-12 20:42:34 +00:00
Daniel Dunbar
dea52ae42c MC/AsmParser: Move special section directive parsing to Darwin specific parser. 
llvm-svn: 108187
 2010-07-12 20:23:36 +00:00
Daniel Dunbar
c02b92ed37 MC/AsmParser: Add a basic ELFAsmParser extension. 
llvm-svn: 108185
 2010-07-12 20:08:04 +00:00
Daniel Dunbar
f3e14374cb MC/AsmParser: Inline AsmParser::CreateSymbol into callers. 
llvm-svn: 108183
 2010-07-12 19:52:10 +00:00
Daniel Dunbar
d1c2da9d0b MC/AsmParser: Move .tbss and .zerofill parsing to Darwin specific parser. 
llvm-svn: 108180
 2010-07-12 19:37:35 +00:00
Daniel Dunbar
a1e5852feb MC/AsmParser: Move .desc parsing to Darwin specific parser. 
llvm-svn: 108179
 2010-07-12 19:22:53 +00:00
Daniel Dunbar
212b42f5ec MC/AsmParser: Move .lsym parsing to Darwin specific parser. 
llvm-svn: 108176
 2010-07-12 19:08:25 +00:00
Daniel Dunbar
50b931bbac MC/AsmParser: Move some misc. Darwin directive handling to DarwinAsmParser. 
llvm-svn: 108174
 2010-07-12 18:49:22 +00:00
Daniel Dunbar
e3a98e546f 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
56e12eeae9 MC/AsmParser: Switch a bunch of directive parsing to use accessors. 
llvm-svn: 108163
 2010-07-12 18:03:11 +00:00
Daniel Dunbar
98d7990ac2 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
f93c614035 MC/AsmParser: Switch some directive parsing to use accessor methods. 
llvm-svn: 108160
 2010-07-12 17:45:27 +00:00
Daniel Dunbar
ffe3934e57 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
fd54ea1239 MC: Move AsmParser::TokError to MCAsmParser(). 
llvm-svn: 108155
 2010-07-12 17:18:45 +00:00
Daniel Dunbar
2be7d27677 MC: Move getLoc() to MCAsmLexer(). 
llvm-svn: 108154
 2010-07-12 17:10:00 +00:00
Duncan Sands
f7b98e2b1e Convert some tab stops into spaces. 
llvm-svn: 108130
 2010-07-12 08:16:59 +00:00
Kevin Enderby
9bf8ee521c Added the darwin .weak_def_can_be_hidden directive. 
llvm-svn: 107886
 2010-07-08 17:22:42 +00:00
Daniel Dunbar
742376cfaa MC: Fix some stray hunks I didn't intend to commit. 
llvm-svn: 107428
 2010-07-01 20:48:51 +00:00
Daniel Dunbar
37b4089fbf MC: Pass the target instance to the AsmParser constructor. 
llvm-svn: 107426
 2010-07-01 20:41:56 +00:00
Daniel Dunbar
769d88aa45 MC: Fix an error message. 
llvm-svn: 107424
 2010-07-01 20:20:01 +00:00
Duncan Sands
78f0758143 Remove unused calls to Lexer.getLoc and the pointless variable HasFillExpr. 
llvm-svn: 107136
 2010-06-29 13:24:40 +00:00
Kevin Enderby
aaad4f57f0 Added the darwin .secure_log_unique and .secure_log_reset directives. 
llvm-svn: 107077
 2010-06-28 21:45:58 +00:00
Daniel Dunbar
5bef2f5031 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
e87e067d2c 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
0ca99c0262 Add support for parsing the ELF .type assembler directive. 
llvm-svn: 104316
 2010-05-21 11:36:59 +00:00
Chris Lattner
aedd148163 fix rdar://7986634 - match instruction opcodes case insensitively. 
llvm-svn: 104183
 2010-05-19 23:34:33 +00:00
Eric Christopher
4a9013f115 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
cd585da505 Incorporate Daniel's suggestion and use !isdigit(CurPtr[0]) and not 
CurPtr[0] == '\n' when testing the character after a "0b" when looking
to see if it part of a something like "jmp 0b".

llvm-svn: 104039
 2010-05-18 18:09:20 +00:00
Kevin Enderby
438a36f66a Fixed the problem with a branch to "0b" that was not parsed by llvm-mc 
correctly.  The Lexer was incorrectly eating the newline casusing it to branch
to address 0.  Updated the test case to use a "0:" label and a branch to "0b".

llvm-svn: 104038
 2010-05-18 17:51:35 +00:00
Kevin Enderby
14c986967b Added support in MC for Directional Local Labels. 
llvm-svn: 103989
 2010-05-17 23:08:19 +00:00
Eric Christopher
6ea9cf8425 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
b18dfe6cb4 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
8f5da3624f 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
950f0d7892 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
ebea91f168 Add AsmParser support for darwin tbss directive. 
Nothing uses this yet.

llvm-svn: 103757
 2010-05-14 01:50:28 +00:00
Eric Christopher
0b3085ae2e Fix a couple of typos. 
llvm-svn: 103756
 2010-05-14 01:38:54 +00:00
Chris Lattner
ca57d80f83 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
a3731b17c0 Revert r103137, fix for $ in labels. It looks like we can't actually handle this 
at the token level. Consider the following horrible test case:

  a = 1
  .globl $a
  movl ($a), %eax
  movl $a, %eax
  movl $$a, %eax

llvm-svn: 103178
 2010-05-06 14:46:38 +00:00
Chris Lattner
ca80f41a4d fix rdar://7946934 - in some limited cases, the assembler should 
allow $ at the start of a symbol name.

llvm-svn: 103137
 2010-05-05 23:51:28 +00:00
Daniel Dunbar
139bd85642 MC: Reject attempts to define a variable symbol. 
llvm-svn: 103111
 2010-05-05 19:01:00 +00:00
Daniel Dunbar
d2ac9dc48b MC: Rename MCSymbol::{g,s}etValue -> MCSymbol::{g,s}etVariableValue. 
llvm-svn: 103095
 2010-05-05 17:41:00 +00:00
Daniel Dunbar
b7e0c07d88 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
a5798151a3 refactor .if handling code a bit. 
llvm-svn: 101659
 2010-04-17 18:14:27 +00:00
Chris Lattner
124dc743bc 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
60ff59e5c1 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
f753452587 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
8e4cf6f425 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
241d3cb048 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
Chris Lattner
58097a4b82 add a hack to allow parsing negative minint. rdar://7751341 
llvm-svn: 98442
 2010-03-13 19:25:13 +00:00
Daniel Dunbar
33c92a1a88 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
8f981447a6 Remove unneeded includes. 
llvm-svn: 98167
 2010-03-10 17:56:05 +00:00
Chris Lattner
554f323da8 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
2a0ccfc916 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
11cce486ac 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
09733841aa 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
5f919913e8 wirte up .file and .file to the mc asmparser. 
llvm-svn: 94438
 2010-01-25 19:02:58 +00:00
Chris Lattner
5a57121631 make -fno-rtti the default unless a directory builds with REQUIRES_RTTI. 
llvm-svn: 94378
 2010-01-24 20:43:08 +00:00
Chris Lattner
5d31547fec 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
60edc92e39 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
e773b145a2 stop using strtoll, it gives windows heartburn. 
llvm-svn: 94167
 2010-01-22 07:34:12 +00:00
Chris Lattner
276811b58a Stop building RTTI information for *most* llvm libraries. Notable 
missing ones are libsupport, libsystem and libvmcore.  libvmcore is
currently blocked on bugpoint, which uses EH.  Once it stops using
EH, we can switch it off.

This #if 0's out 3 unit tests, because gtest requires RTTI information.
Suggestions welcome on how to fix this.

llvm-svn: 94164
 2010-01-22 06:49:46 +00:00
Chris Lattner
c0e2ef62fa 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
Chris Lattner
84c0345065 forgot to svn add these, doh. 
llvm-svn: 94130
 2010-01-22 01:55:10 +00:00
Chris Lattner
9a84d96edf create a new MCParser library and move some stuff into it. 
llvm-svn: 94129
 2010-01-22 01:44:57 +00:00