Commit Graph

324 Commits

Author SHA1 Message Date
Jim Grosbach dac0238ed2 .cfi directive register parsing flexibility.
Parsing a register name/number for .cfi directives can't assume that a
register name starts with a '%' token. Be more flexible and check for a
register number instead. Still unlikely to be perfect, but it allows us
to parse both plain identifiers as register names and integers as register
numbers, which is what we're wanting to support at this point.

llvm-svn: 132466
2011-06-02 17:14:04 +00:00
Joerg Sonnenberger af5f23ee07 Add new -d option to tblgen. It writes a make(1)-style dependency file.
llvm-svn: 132395
2011-06-01 13:10:15 +00:00
Charles Davis 2f6ecea19d Add tests for .seh_setframe and .seh_handlerdata parsing. Fix issues with
them.

I had to add a special SwitchSectionNoChange method to MCStreamer just for
.seh_handlerdata. If this isn't OK, please let me know, and I'll find some
other way to fix .seh_handlerdata streaming.

llvm-svn: 132084
2011-05-25 21:43:45 +00:00
Charles Davis 828b00c0e1 Add tests for .seh_savereg and .seh_savexmm parsing. Once again, fix the
buggy methods that parse these directives.

llvm-svn: 132045
2011-05-25 04:51:25 +00:00
Charles Davis b0c4f39173 Add a test for .seh_pushframe parsing. Fix the bug exposed by it (and another
one I found by inspection).

llvm-svn: 132037
2011-05-25 04:08:15 +00:00
Charles Davis fc1e7ce850 Add a test for the .seh_handler directive. Fix problems with the parsing
method exposed by the test. While we're at it, simplify the .seh_proc
parsing method.

llvm-svn: 132028
2011-05-25 01:33:42 +00:00
Charles Davis 7f6176c3f9 Implement the rest of the SEH directive-parsing methods in the COFFAsmParser.
Add a size alignment check to the .seh_stackalloc directive parser. Add a
more descriptive error message to the .seh_handler directive parser.

Add methods to the TargetAsmInfo struct in support of all this.

llvm-svn: 131992
2011-05-24 20:06:30 +00:00
Jim Grosbach bae9fee95f Propagate error correctly in the MC Asm parser for leading '$' expressions.
llvm-svn: 131918
2011-05-23 20:36:04 +00:00
Charles Davis d9eafdcfd5 Implement .seh_stackalloc and .seh_pushframe parsing.
I haven't implemented any of the ones that take registers yet. The problem is
that for x86-64 the streamer methods expect a native x86 register number (note:
%r8-%r15 want 8-15 instead of 0-7; same for %xmm8-%xmm15). I haven't figured
out exactly how I want to do that yet.

llvm-svn: 131899
2011-05-23 16:43:09 +00:00
Charles Davis c7250faeb1 Add methods to parse the SEH directives to the COFFAsmParser. Implement some
of them, particularly the ones that don't take arguments. Also implement
.seh_proc and .seh_handler.

llvm-svn: 131866
2011-05-22 21:12:15 +00:00
Joerg Sonnenberger 74ba2623ce Reapply 131644 including the missing header changes:
Introduce -fatal-assembler-warnings for the obvious purpose

llvm-svn: 131655
2011-05-19 18:00:13 +00:00
Eli Friedman 3e2f17499e Revert r131644; it's breaking the build.
llvm-svn: 131653
2011-05-19 17:48:09 +00:00
Joerg Sonnenberger 59b523169f Introduce -fatal-assembler-warnings for the obvious purpose
llvm-svn: 131644
2011-05-19 17:27:01 +00:00
Rafael Espindola 74b101f3e3 Parsing and plumbing for .cfi_sections.
llvm-svn: 131117
2011-05-10 01:10:18 +00:00
Daniel Dunbar 1bf128eaeb MC/AsmParser: Generalize a check.
llvm-svn: 130515
2011-04-29 17:53:11 +00:00
Devang Patel 17740e70d5 Reduce clutter in asm output. Do not emit source location as comment for each instruction.
llvm-svn: 129715
2011-04-18 20:26:49 +00:00
Rafael Espindola 539d96f01d Be consistent about being virtual and returning void in the cfi methods.
Implement the ones that were missing in the asm streamer.

llvm-svn: 129413
2011-04-12 23:59:07 +00:00
Rafael Espindola fd794affe5 Remove LastOffset from the asm parser.
llvm-svn: 129378
2011-04-12 18:53:30 +00:00
Rafael Espindola 1ec0f46169 Fix the case of a .cfi_rel_offset before any .cfi_def_cfa_offset.
llvm-svn: 129362
2011-04-12 16:12:03 +00:00
Rafael Espindola 2e1c9d2188 Implement .cfi_same_value.
llvm-svn: 129361
2011-04-12 15:31:05 +00:00
Eric Christopher ffc0e1f6e6 Match case for invalid constant error messages and add a new
test for invalid hexadecimals.

llvm-svn: 129326
2011-04-12 00:18:03 +00:00
Eric Christopher 104af0619e To avoid printing out multiple error messages for cases like:
.long 80+08

go ahead and assume that if we've got an Error token that we handled it
already. Otherwise if it's a token we can't handle then go ahead and
return the default error.

llvm-svn: 129322
2011-04-12 00:03:13 +00:00
Eric Christopher 64749f2a89 Lex, and then fail on invalid constants.
Testcase forthcoming.

rdar://8490596

llvm-svn: 129309
2011-04-11 22:24:56 +00:00
Rafael Espindola 82065cb6cf Implement cfi_rel_offset
llvm-svn: 129306
2011-04-11 21:49:50 +00:00
Rafael Espindola ffd2e5163b implement .cfi_adjust_cfa_offset.
llvm-svn: 129296
2011-04-11 20:29:16 +00:00
Rafael Espindola 88bc341061 Add support for .skip.
Patch by Roman Divacky.
Fixes PR9361.

llvm-svn: 129106
2011-04-07 20:26:23 +00:00
Kevin Enderby 5bbe957155 Added support symbolic floating point constants in the MC assembler for Infinity
and Nans with the same strings as GAS supports.  rdar://8673024

llvm-svn: 128488
2011-03-29 21:11:52 +00:00
Daniel Dunbar 6f4c9425eb MC: Improve some diagnostics on uses of '.' pseudo-symbol.
llvm-svn: 128289
2011-03-25 17:47:17 +00:00
Daniel Dunbar 3f56104be1 Tidyness.
llvm-svn: 128288
2011-03-25 17:47:14 +00:00
Jim Grosbach a3df87fb01 Clean up assembly statement separator support.
The MC asm lexer wasn't honoring a non-default (anything but ';') statement
separator. Fix that, and generalize a bit to support multi-character
statement separators.

llvm-svn: 128227
2011-03-24 18:46:34 +00:00
Stuart Hastings 12d5312622 Reapply 127939 since Daniel fixed the breakage. <rdar://problem/9012638>
llvm-svn: 127944
2011-03-19 02:42:31 +00:00
Stuart Hastings 08b4daa191 Revert 127939. <rdar://problem/9012638>
llvm-svn: 127943
2011-03-19 02:33:56 +00:00
Stuart Hastings 83d4a28d1f Revise r126127 to address Daniel's comments. <rdar://problem/9012638>
llvm-svn: 127939
2011-03-19 01:32:01 +00:00
Daniel Dunbar f1d62cfc8f MC/Mach-O: Fix regression introduced in r126127, this assignment shouldn't have
been removed.

llvm-svn: 127812
2011-03-17 16:25:24 +00:00
Jim Grosbach 14be61aeee Darwin 'as' silently ignores the '.ident' directive.
llvm-svn: 127258
2011-03-08 19:17:19 +00:00
Joerg Sonnenberger afb36fad99 Restore r125595 (reverted in r126336) with modifications:
Introduce a variable in the AsmParserExtension whether [] is valid in an
expression. If it is true, parse them like (). Enable this for ELF only.

llvm-svn: 126443
2011-02-24 21:59:22 +00:00
Jim Grosbach 0c03a3a146 Revert r125595, which is an X86-only undocumented assembly syntax extension
enabled for all targets. Non-X86 targets should not have this behavior
enabled by default.

Joerg, if you would like to resubmit with the behavior conditionalized to be
X86-ELF only, that's fine.

llvm-svn: 126336
2011-02-23 21:26:51 +00:00
Joerg Sonnenberger 4f864d3111 Bug#9172: Don't use static in file scope, use an attribute on the
parser.

llvm-svn: 126225
2011-02-22 16:53:11 +00:00
Rafael Espindola 58ac6e1677 Add support for pushsection and popsection. Patch by Joerg Sonnenberger.
llvm-svn: 125629
2011-02-16 01:08:29 +00:00
Roman Divacky 4e0f4957bc Add support for parsing [expr].
This is submitted by Joerg Sonnenberger and fixes his PR8685.

llvm-svn: 125595
2011-02-15 20:43:39 +00:00
Jim Grosbach 01af6c4641 More whitespace cleanup...
llvm-svn: 125388
2011-02-11 19:05:56 +00:00
Benjamin Kramer 7b7caf51e9 Support for .ifdef / .ifndef in the assembler parser. Patch by Joerg Sonnenberger.
llvm-svn: 125120
2011-02-08 22:29:56 +00:00
Bob Wilson 813bdf6e58 Do not sign extend floating-point values in the asm parser.
llvm-svn: 124831
2011-02-03 23:17:47 +00:00
Roman Divacky 9a58919c8e Enumerate .code16/32/64 instead of checking .code prefix. This
unbreaks some ARM tests.

llvm-svn: 124608
2011-01-31 21:19:43 +00:00
Roman Divacky bd59dff739 Error on all .code* directives instead of just .code16 as they
all lead to a silent miscompilation of code.

llvm-svn: 124603
2011-01-31 20:56:49 +00:00
Roman Divacky cd9ae95ae7 Error on .code16 instead of producing wrong (32bit) code.
llvm-svn: 124498
2011-01-28 19:29:48 +00:00
Roman Divacky 7e9e290952 Add support for parsing .float
llvm-svn: 124485
2011-01-28 14:20:32 +00:00
Nico Weber 4ada0d9164 PR8951: Support for .equiv in integrated assembler, patch by Jörg Sonnenberger!
llvm-svn: 124467
2011-01-28 03:04:41 +00:00
Roman Divacky ed5efb4053 Add support for specifying register name in cfi-register/offset/def
as well as register number.

llvm-svn: 124379
2011-01-27 17:16:37 +00:00
Bill Wendling cdbf17b179 Add support for parsing a Real value. It stores the Real value as its binary
encoding. It's up to the individual back-ends to convert it to their preferred
representation when printing.

llvm-svn: 124229
2011-01-25 21:26:41 +00:00
Rafael Espindola 689939e648 Handle strings in section names the same way as gas:
* If the name is a single string, we remove the quotes
* If the name starts without a quote, we include any quotes in the name

llvm-svn: 124127
2011-01-24 18:02:54 +00:00
Rafael Espindola 4b7b7fba38 Delay the creation of eh_frame so that the user can change the defaults.
Add support for SHT_X86_64_UNWIND.

llvm-svn: 124059
2011-01-23 05:43:40 +00:00
Rafael Espindola 0e7e34e476 Remove more duplicated code.
llvm-svn: 124056
2011-01-23 04:43:11 +00:00
Rafael Espindola aea4958ea6 Remove duplicated code.
llvm-svn: 124054
2011-01-23 04:28:49 +00:00
Jim Grosbach 493c0fbde8 Make sure to propogate the error code when we fail to parse a modifier.
llvm-svn: 123857
2011-01-19 23:06:07 +00:00
Rafael Espindola 46a5b05207 Correctly encode pcrel|indirect.
llvm-svn: 122624
2010-12-29 04:31:26 +00:00
Rafael Espindola 290d71671e Implement cfi_def_cfa. Also don't convert to dwarf reg numbers twice. Looks
like 6 is a fixed point of that and so the previous tests were OK :-)

llvm-svn: 122614
2010-12-29 01:42:56 +00:00
Rafael Espindola 85d91982ca Implement .cfi_remember_state and .cfi_restore_state.
llvm-svn: 122602
2010-12-28 18:36:23 +00:00
Rafael Espindola 1de2dd0e5e Add support for .cfi_lsda.
llvm-svn: 122584
2010-12-27 15:56:22 +00:00
Rafael Espindola 2ac8355ecd Add support for the same encodings of the personality function that gnu as
supports.

llvm-svn: 122577
2010-12-27 00:36:05 +00:00
Rafael Espindola 9ae2d05d45 Add support for @note. Patch by Jörg Sonnenberger.
llvm-svn: 122568
2010-12-26 21:30:59 +00:00
Rafael Espindola 9141b611ad Add basic support for .cfi_personality.
llvm-svn: 122566
2010-12-26 20:20:31 +00:00
Chris Lattner 03a102bff3 Generalize a previous change, fixing PR8855 - an valid large immediate
rejected by the mc assembler.

llvm-svn: 122557
2010-12-25 21:36:35 +00:00
Kevin Enderby fa3c6f148c In llvm-mc parse a Hash token as a full line comment. Allows handling of
preprocessed .s files and matches darwin gas.  rdar://8798690
Also fix a comment on the next line of AsmParser.cpp after this new code.

llvm-svn: 122531
2010-12-24 00:12:02 +00:00
Nick Lewycky 0de20af7ba Add missing standard headers. Patch by Joerg Sonnenberger!
llvm-svn: 122193
2010-12-19 20:43:38 +00:00
Roman Divacky 71d29167ea Add support for lexing single quotes like 'c'.
This fixed 8615.

llvm-svn: 122150
2010-12-18 08:56:37 +00:00
Rafael Espindola f8e127eaf6 Factor some code to parseSectionFlags and fix the default type of a section.
llvm-svn: 120145
2010-11-25 15:32:56 +00:00
Rafael Espindola 9f75d5df0b Behave a bit more like gnu as and use the symbol (instead of the section)
for any relocation to a symbol defined in a tls section.

llvm-svn: 120121
2010-11-24 21:57:39 +00:00
Rafael Espindola 3c227b0b89 Add basic CFI methods to the streamer interface.
llvm-svn: 119972
2010-11-22 14:27:24 +00:00
Kevin Enderby 8be14414f6 Added support for the Mach-O .symbol_resolver directive. rdar://8673046
llvm-svn: 119816
2010-11-19 18:39:33 +00:00
Rafael Espindola b67912d5cd Add support for .int.
llvm-svn: 119512
2010-11-17 16:24:40 +00:00
Rafael Espindola 5c996894bd Add support for .2byte, .4byte and .8byte.
Fixes PR8631.

llvm-svn: 119511
2010-11-17 16:15:42 +00:00
Rafael Espindola c653a895c8 Add .loc methods to the streamer.
Next: Add support for the !HasDotLocAndDotFile case to the MCAsmStreamer
and then switch codegen to use it.

llvm-svn: 119384
2010-11-16 21:20:32 +00:00
Rafael Espindola 3bbea57a6e Parse and ignore some .cfi_* directives.
llvm-svn: 119362
2010-11-16 18:34:07 +00:00
Rafael Espindola 46c79ef113 Fix PR8565.
This moves most of the isUsed logic to the MCSymbol itself. With this we
get a bit more relaxed about allowing definitions after uses: uses that
don't evaluate their argument immediately (jmp foo) are accepted.

ddunbar, this was the smallest compromise I could think of that lets us
accept gcc (and clang!) assembly.

llvm-svn: 119144
2010-11-15 14:40:36 +00:00
Rafael Espindola 4bcf94c75a Parse and record the gnu_unique_object type.
llvm-svn: 118980
2010-11-13 04:51:02 +00:00
Rafael Espindola f01b622902 Parse and remember discriminators in .loc line. I try to output them with
another patch.
This lets us parse a bit more of the gcc 4.5 output.

llvm-svn: 118975
2010-11-13 03:18:27 +00:00
Rafael Espindola de990b270d gnu as support both % and @ before types, do the same.
llvm-svn: 118893
2010-11-12 15:47:08 +00:00
Rafael Espindola 84d031870c Mark labels declared in tls sections as STT_TLS. This matches the behavior of
gas.

llvm-svn: 118818
2010-11-11 19:04:55 +00:00
Rafael Espindola a3e9a2298d Initial comdat implementation.
llvm-svn: 118805
2010-11-11 18:13:52 +00:00
Rafael Espindola 9bb44a5ce8 Fixed version of 118639 with an extra assert to catch similar problems
earlier. Implicit bool -> int conversions are evil!

llvm-svn: 118651
2010-11-09 23:42:07 +00:00
Rafael Espindola 33048f069f Revert previous patch. Missed a case.
llvm-svn: 118645
2010-11-09 22:54:38 +00:00
Rafael Espindola 4bdd2724e3 Remove IsExplicit. It was always false.
llvm-svn: 118639
2010-11-09 22:37:44 +00:00
Daniel Dunbar 8a3c3f2ad3 Fix typo.
llvm-svn: 118421
2010-11-08 17:53:02 +00:00
Rafael Espindola 9d17a3194e Set default flags for .rodata.
llvm-svn: 118395
2010-11-08 02:47:59 +00:00
Rafael Espindola 5e874982f2 Add support for expressions in .sleb/.uleb directives.
llvm-svn: 118023
2010-11-02 17:22:24 +00:00
Rafael Espindola 144fb8af58 Add support for .value.
llvm-svn: 117922
2010-11-01 15:29:07 +00:00
Rafael Espindola 1614597873 Implement .weakref.
llvm-svn: 117911
2010-11-01 14:28:48 +00:00
Rafael Espindola 8aefb66376 Improvements to .section parsing:
* If we have a M or a G, reject sections without the type
* Only parse the flag specific arguments if we have M or G
* Parse the corresponding arguments for M and G

We ignore the G arguments and flag for now.

llvm-svn: 117608
2010-10-28 21:33:33 +00:00
Rafael Espindola 63760ba38e Add support for the .string directive.
llvm-svn: 117592
2010-10-28 20:02:27 +00:00
Roman Divacky 41e6cebb40 Use the IDVal directly as there's no need to convert to std::string.
Pointed out by Chris!

llvm-svn: 117557
2010-10-28 16:57:58 +00:00
Roman Divacky fdac6365ab Implement .equ directive as a synonym to .set.
llvm-svn: 117553
2010-10-28 16:22:58 +00:00
Rafael Espindola 095fa9e5cc Set default type and flags for .init and .fini.
llvm-svn: 117471
2010-10-27 18:45:20 +00:00
Rafael Espindola eb0c2c170d Add support for the .symver directive. This is really ugly, but most of it is
contained in the ELF object writer.

llvm-svn: 117448
2010-10-27 15:18:17 +00:00
Rafael Espindola c9fb35e73b Add support for .ident.
llvm-svn: 117389
2010-10-26 19:35:47 +00:00
Daniel Dunbar b3a48f3459 MC/AsmParser: Fix relative precedence of {+,-} and comparison ops.
llvm-svn: 117299
2010-10-25 20:18:56 +00:00
Daniel Dunbar 7484d2cbec MC/AsmLexer: Fix bug in source location for Slash token.
llvm-svn: 117298
2010-10-25 20:18:53 +00:00
Chandler Carruth 1898262a33 Remove remaining uses of ATTRIBUTE_UNUSED on variables, and delete three
#includes in the process.

llvm-svn: 116919
2010-10-20 08:27:02 +00:00
Bill Wendling 5391eb61fb Fix spelling.
llvm-svn: 116804
2010-10-19 10:18:23 +00:00
Daniel Dunbar 4d99878a37 MC/AsmParser: Report .stabs directive as unsupported.
llvm-svn: 116659
2010-10-16 04:56:42 +00:00
Michael J. Spencer c8dbdfd4ba MC-COFF: Add COFFAsmParser. Completes PR8343.
llvm-svn: 116150
2010-10-09 11:01:07 +00:00
Michael J. Spencer 530ce85b3e Fix Whitespace.
llvm-svn: 116149
2010-10-09 11:00:50 +00:00
Michael J. Spencer 3d89823102 MC: Move ParseDirectiveELFType into ELFAsmParser. COFF uses .type for something else.
llvm-svn: 116142
2010-10-09 03:47:55 +00:00
Rafael Espindola b91bac6c96 Add support for a fill value in the .zero directive.
llvm-svn: 115655
2010-10-05 19:42:57 +00:00
Kevin Enderby a68d004d88 Incorporate suggestions by Daniel Dunbar after his review. Thanks Daniel!
1) Changed ValidateDwarfFileNumber() to isValidDwarfFileNumber() to be better
   named.  Since it is just a predicate and isn't actually changing any state.

2) Added a missing return in the comments for setCurrentDwarfLoc() in 
   include/llvm/MC/MCContext.h for fix formatting.

3) Changed clearDwarfLocSeen() to ClearDwarfLocSeen() since it does change
   state.

4) Simplified the last test in isValidDwarfFileNumber() to just a one line
   boolean test of MCDwarfFiles[FileNumber] != 0 for the final return statement.

llvm-svn: 115551
2010-10-04 20:17:24 +00:00
Jan Wen Voung 87f77b5f9a Add hook in MCSection to decide when to use "optimized nops", for each
section kind. Previously, optimized nops were only used for MachO.
Also added tests for ELF and COFF.

llvm-svn: 115523
2010-10-04 17:32:41 +00:00
Kevin Enderby e46564a4a8 This is the last major patch to implement support for the .loc directive
and output the dwarf line number tables.  This contains the code to emit and
encode the dwarf line tables from the previously gathered information in the
MCLineSection objects.  This contains all the details to encode the line and
address deltas into the dwarf line table.

To do this an MCDwarfLineAddrFragment has been added.

Also this moves the interface code out of Mach-O streamer into
MCDwarf so it should be useable by other object file formats.

There is now one call to be made from an MCObjectStreamer
EmitInstruction() method:
   MCLineEntry::Make(this, getCurrentSection());
to create a line entry after each instruction is assembled.

And one call call to be made from an MCObjectStreamer Finish() method:
   MCDwarfFileTable::Emit(this, DwarfLineSection);
when getContext().hasDwarfFiles() is true and is passed a object file specific
MCSection where to emit the dwarf file and the line tables.

This appears to now be correct for 32-bit targets, at least x86.  But the
relocation entries for 64-bit Darwin needs some further work which is next
up to work on.  So for now the 64-bit Mach-O target does not output the
dwarf file and line tables.

llvm-svn: 115157
2010-09-30 16:52:03 +00:00
Jan Wen Voung b96b2d8e4d Have ELFAsmParser.cpp use the already parsed "Size" (entry size) when
constructing a section. Test for a few cases also included.

llvm-svn: 115132
2010-09-30 02:41:46 +00:00
Jan Wen Voung c768287968 Test commit - Deleted some whitespace at the end of a line.
llvm-svn: 115122
2010-09-30 01:09:20 +00:00
Chris Lattner b44fd24fc1 change the protocol TargetAsmPArser::MatchInstruction method to take an
MCStreamer to emit into instead of an MCInst to fill in.  This allows the
matcher extra flexibility and is more convenient.

llvm-svn: 115014
2010-09-29 01:42:58 +00:00
Rafael Espindola 9ca41113f6 Make sure .text doesn't produce extra alignment.
llvm-svn: 114895
2010-09-27 21:40:27 +00:00
Daniel Dunbar d116d8a4e9 MC/AsmParser: Handle exponents in floating point literals.
llvm-svn: 114861
2010-09-27 20:12:52 +00:00
Benjamin Kramer c758311025 Push twines deeper into SourceMgr's error handling methods.
llvm-svn: 114847
2010-09-27 17:42:11 +00:00
Daniel Dunbar ce17f72c38 MC/AsmParser: Handle a missed case of floating literals in the lexer.
llvm-svn: 114733
2010-09-24 17:10:26 +00:00
Daniel Dunbar 2af1653032 MC/AsmParser: Support .single and .double for embedding floating point literals.
- I believe more modern 'gas' supports a more enhanced set of arithmetic on
   them, but for now the only thing we can do is emit them as data.

llvm-svn: 114719
2010-09-24 01:59:56 +00:00
Daniel Dunbar 3068a93dc1 MC/Lexer: Add 'Real' token type for floating point literals.
llvm-svn: 114718
2010-09-24 01:59:31 +00:00
Chris Lattner 2bb9504d1a fix rdar://8456417 - llvm-mc can't do basic math
llvm-svn: 114532
2010-09-22 05:05:16 +00:00
Rafael Espindola f0591c1642 Implement support for .local and its "interesting" interactions with .comm.
llvm-svn: 114382
2010-09-21 00:24:38 +00:00
Daniel Dunbar baad46c6ee Fix an MSVC warning.
llvm-svn: 114184
2010-09-17 16:34:24 +00:00
Daniel Dunbar 55f16678e4 MC/AsmParser: Add support for 'a + 4@GOTPCREL' and friends, by reconsing the
expression to include the modifier.
 - Gross, but this a corner case we don't expect to see often in practice, but
   it is worth accepting.
 - Also improves diagnostics on invalid modifiers.

llvm-svn: 114154
2010-09-17 02:47:07 +00:00
Rafael Espindola f7f433200b Make sure that names like .note.GNU-stack are accepted as valid section names.
llvm-svn: 114091
2010-09-16 17:05:55 +00:00
Rafael Espindola 922e3f454b Add support for the .zero directive.
llvm-svn: 114077
2010-09-16 15:03:59 +00:00
Rafael Espindola f667d929ce Add a InitSections method to the streamer interface.
The ELF implementation now creates text, data and bss to match the gnu as
behavior.

The text streamer still has the old MachO specific behavior since
the testsuite checks that it will error when a directive is given
before a setting the current section for example.

A nice benefit is that -n is not required anymore when producing
ELF files.

llvm-svn: 114027
2010-09-15 21:48:40 +00:00
Rafael Espindola 12d73d1f18 Add support for leb128 of absolute expressions.
llvm-svn: 113691
2010-09-11 16:45:15 +00:00
Chris Lattner a2a9d16b78 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 e5444a88cd 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 43325c4a68 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 91689c1d0f 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 e39017cb97 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 a71ab07e14 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 1264b7cab8 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 2476432639 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 3b96ffdac1 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 02db8f6415 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 2ecc3bb4f7 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 2eca0252c3 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 ebace2248f MCAsmParser: Add dump() hook to MCParsedAsmOperand.
llvm-svn: 110790
2010-08-11 06:37:04 +00:00
Daniel Dunbar d215976208 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 b759a13da8 MC: Destroy Macro instances.
llvm-svn: 109720
2010-07-29 01:51:55 +00:00
Kevin Enderby e5930f142a 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 a8f6c1cc26 Add some more handlers for ELF section directives.
llvm-svn: 108928
2010-07-20 21:12:46 +00:00
Daniel Dunbar eefe8616be 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 20b026464e 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 8897d479b5 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 40a564f09f 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 6fb1c3ad8a MC/AsmParser: Add macro argument substitution support.
llvm-svn: 108654
2010-07-18 19:00:10 +00:00
Daniel Dunbar 4323571efb MC/AsmParser: Add basic support for macro instantiation.
llvm-svn: 108653
2010-07-18 18:54:11 +00:00
Daniel Dunbar c1f58ec83c MC/AsmParser: Add basic parsing support for .macro definitions.
llvm-svn: 108652
2010-07-18 18:47:21 +00:00
Daniel Dunbar 828984ff4e 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 d8a1845c31 MC/AsmParser: Use Error() instead of calling PrintMessage() directly.
llvm-svn: 108648
2010-07-18 18:31:45 +00:00