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108 Commits

Author SHA1 Message Date
Sean Callanan
177934e021 Changed the AsmParser to handle error messages itself 
rather than passing them off to the AsmLexer to handle.
This means the AsmLexer no longer requires a SourceMgr
to do error handling.

llvm-svn: 94047
 2010-01-20 23:19:55 +00:00
Sean Callanan
1a0eeb6e06 Promoted the reference to the SourceMgr from AsmLexer 
into AsmParser, in preparation for making AsmLexer
independent of the SourceMgr

llvm-svn: 94043
 2010-01-20 22:45:23 +00:00
Sean Callanan
70855e42e6 Modified MCAsmLexer to return error information upward 
rather than printing it locally, reducing its dependence
on SourceMgr.

llvm-svn: 94041
 2010-01-20 22:18:24 +00:00
Sean Callanan
936b0d3144 Promoted the getTok() method to MCAsmParser so that 
the two token accessor functions are declared consistently.
Modified the clients of MCAsmParser to reflect this change.

llvm-svn: 93916
 2010-01-19 21:44:56 +00:00
Sean Callanan
686ed8d248 Added a Lex function to the AsmParser, to allow handling 
of include directives to occur within the parser itself.
This will break the lexer's dependency on a SourceMgr as
input.

llvm-svn: 93899
 2010-01-19 20:22:31 +00:00
Chris Lattner
c35681b298 Generalize mcasmstreamer data emission APIs to take an address space 
identifier.  There is no way to work around it.

llvm-svn: 93896
 2010-01-19 19:46:13 +00:00
Chris Lattner
0c65fd4902 add a "MCStreamer::EmitFill" method, and move the default implementation 
(which just iteratively emits bytes) to MCStreamer.

llvm-svn: 93888
 2010-01-19 18:45:47 +00:00
Chris Lattner
ab9cd3e132 fix parsing .comm directives on systems which do not represent alignments 
as a power of 2.  This fixes MC/AsmParser/directive_comm.s

llvm-svn: 93867
 2010-01-19 06:22:22 +00:00
Chris Lattner
e17df0b7f0 fix a bug in range information for $42, eliminate an 
unneeded argument from ParseExpression.

llvm-svn: 93536
 2010-01-15 19:39:23 +00:00
Chris Lattner
528d00b913 extend MCAsmParser::ParseExpression and ParseParenExpression 
to return range information for subexpressions.  Use this to
provide range info for several new X86Operands.

llvm-svn: 93534
 2010-01-15 19:28:38 +00:00
Chris Lattner
14bf521792 add virtual methods to get the start/end of a MCParsedAsmOperand, 
the default implementation returns "unknown".

llvm-svn: 93470
 2010-01-14 22:29:57 +00:00
Chris Lattner
f29c0b6880 Split the TargetAsmParser "ParseInstruction" interface in half: 
the new ParseInstruction method just parses and returns a list of
target operands.  A new MatchInstruction interface is used to
turn the operand list into an MCInst.

This requires new/deleting all the operands, but it also gives 
targets the ability to use polymorphic operands if they want to. 

llvm-svn: 93469
 2010-01-14 22:21:20 +00:00
Chris Lattner
77fd677111 prune #includes in TargetAsmParser.h 
Pass in SMLoc of instr opcode into ParseInstruction.
Make AsmToken be a class, not a struct.

llvm-svn: 93457
 2010-01-14 21:32:45 +00:00
Bill Wendling
ae606a1d1d Mark some debug variables as 'unused' to quiet compiler and analyzer. 
llvm-svn: 92183
 2009-12-28 01:34:57 +00:00
Daniel Dunbar
c3bd60e393 MC: Remove unneeded context argument to MCExpr::Evaluate*. 
llvm-svn: 84233
 2009-10-16 01:57:52 +00:00
Daniel Dunbar
5f339244fb MC: Tweak variable assignment diagnostics, and make reassignment of non-absolute 
variables and symbols invalid.

llvm-svn: 84232
 2009-10-16 01:57:39 +00:00
Daniel Dunbar
d20cda028a MC: When parsing a variable reference, substitute absolute variables immediately 
since they are allowed to be redefined.

llvm-svn: 84230
 2009-10-16 01:34:54 +00:00
Chris Lattner
351a7ef01a add a new DirectiveMap stringmap, which allows more efficient dispatching 
to directive handlers and allows for easier extensibility.

I only switched a few over for now.

llvm-svn: 82926
 2009-09-27 21:16:52 +00:00
Chris Lattner
c6a889d0b6 use an accessor to simplify code. 
llvm-svn: 81997
 2009-09-16 04:12:47 +00:00
Kevin Enderby
ce4bec8e0c Added the ParseInstruction() hook for target specific assembler directives so 
that things like .word can be parsed as target specific.  Moved parsing .word
out of AsmParser.cpp into X86AsmParser.cpp as it is 2 bytes on X86 and 4 bytes
for other targets that support the .word directive.

llvm-svn: 81461
 2009-09-10 20:51:44 +00:00
Benjamin Kramer
63951ada31 Fix an integer truncation noticed by MSVC. 
llvm-svn: 81109
 2009-09-06 09:35:10 +00:00
Daniel Dunbar
897ffadd2d llvm-mc: Pass values to MCStreamer as MCExprs, not MCValues. 
llvm-svn: 80578
 2009-08-31 08:09:28 +00:00
Daniel Dunbar
b7b2097aac llvm-mc: Simplify EmitAssignment ('.set' is identical to '='). 
llvm-svn: 80577
 2009-08-31 08:09:09 +00:00
Daniel Dunbar
b12b33051d llvm-mc: Remove MCAsmParser::Parse[Paren]RelocatableExpression. 
llvm-svn: 80576
 2009-08-31 08:08:50 +00:00
Daniel Dunbar
7c82d56930 llvm-mc: Add MCAsmParser::Parse[Paren]Expression forms which return an MCExpr. 
llvm-svn: 80574
 2009-08-31 08:08:17 +00:00
Daniel Dunbar
940cda2590 llvm-mc: Add MCAsmParser::getContext. 
llvm-svn: 80571
 2009-08-31 08:07:44 +00:00
Daniel Dunbar
f363645da2 llvm-mc: Switch MCExpr construction to using static member functions, and taking the MCContext (which now owns all MCExprs). 
llvm-svn: 80569
 2009-08-31 08:07:22 +00:00
Daniel Dunbar
115e4d6d7b llvm-mc: Move AsmExpr into MC lib (as MCExpr). 
llvm-svn: 80567
 2009-08-31 08:06:59 +00:00
Daniel Dunbar
6a715dccdf llvm-mc: MCStreamer cleanups. - Remove EmitLocalSymbol, this is unsupported for now. 
- Switch Emit{CommonSymbol,Zerofill} to take alignment in bytes (for consistency).

llvm-svn: 80484
 2009-08-30 06:17:16 +00:00
Daniel Dunbar
96abad185d llvm-mc: Emit .lcomm as .zerofill. 
llvm-svn: 80343
 2009-08-28 05:48:46 +00:00
Daniel Dunbar
e48a69b2a3 llvm-mc: Unique zero fill sections. 
llvm-svn: 80342
 2009-08-28 05:48:29 +00:00
Daniel Dunbar
8d38b8d20c Revert r80305, I forgot a dependent change. 
--- Reverse-merging r80305 into '.':
U    tools/llvm-mc/AsmParser.cpp

llvm-svn: 80309
 2009-08-27 23:58:10 +00:00
Daniel Dunbar
ba33ff294e llvm-mc: Unique sections in .zerofill. 
llvm-svn: 80305
 2009-08-27 23:45:06 +00:00
Daniel Dunbar
4d7b2e3307 llvm-mc/Mach-O: Unique sections properly, so we don't get duplicate text 
sections, etc.
 - The quick and dirty way, just clone the TargetLoweringObjectFile
   code. Eventually this should be shared... somehow.

llvm-svn: 80168
 2009-08-26 22:49:51 +00:00
Daniel Dunbar
e73b267301 llvm-mc/Mach-O: Don't put assembler temporary labels in the symbol table. 
- I moved section creation back into AsmParser. I think policy decisions like
   this should be pushed higher, not lower, when possible (in addition the
   assembler has flags which change this behavior, for example).

llvm-svn: 80162
 2009-08-26 22:13:22 +00:00
Daniel Dunbar
18f3c9b994 llvm-mc: Make non-sensical max bytes to .align an error. 
Also, warn about overflow in alignment values.

llvm-svn: 80077
 2009-08-26 09:16:34 +00:00
Daniel Dunbar
6860ac7375 llvm-mc: Clean up some handling of symbol/section association to be more correct 
(external was really undefined and there wasn't an explicit representation for
absolute symbols).
 - This still needs some cleanup to how the absolute "pseudo" section is dealt
   with, but I haven't figured out the nicest approach yet.

llvm-svn: 79733
 2009-08-22 07:22:36 +00:00
Daniel Dunbar
67dfb1de23 llvm-mc: Improve handling of implicit alignment for magic section directives 
(e.g., .objc_message_refs).
 - Just emit a .align when we see the directive; this isn't exactly what 'as'
   does but in practice it should be ok, at least for now. See FIXME.

llvm-svn: 79697
 2009-08-21 23:30:15 +00:00
Daniel Dunbar
4abcccb965 llvm-mc: In a .fill directive, still honor .align even if invalid maximum bytes 
count is given (this matches 'as').

llvm-svn: 79683
 2009-08-21 23:01:53 +00:00
Daniel Dunbar
8e5edd81bb llvm-mc: Accept .fill size of 8. 
llvm-svn: 79635
 2009-08-21 15:43:35 +00:00
Daniel Dunbar
9df5f33818 llvm-mc: Various section parsing fixes. 
- Add missing flags for various Objective-C sections.

 - Fix names for [non_]lazy_symbol_pointer (these are misspelled in the manual).

 - .symbol_stub does not have the self modifying code flag set (this appears to
   be wrong in the manual?).

 - Add implicit alignment values; not yet used.

Also, call MCStreamer::Finish at the end of a successful parse.

llvm-svn: 79611
 2009-08-21 08:34:18 +00:00
Daniel Dunbar
ef668c169b llvm-mc: Support escaped characters in string literals (for .ascii and .asciz) 
llvm-svn: 79010
 2009-08-14 18:19:52 +00:00
Daniel Dunbar
ba95a7cd8d llvm-mc: Accept .word as a synonym for .short 
llvm-svn: 78641
 2009-08-11 04:44:00 +00:00
Daniel Dunbar
a4b069ce00 llvm-mc: Sketch parsing for .file, .line, and .loc. No streamer hooks for these 
yet (I'm not even sure what they do).

llvm-svn: 78639
 2009-08-11 04:24:50 +00:00
Daniel Dunbar
9af747b421 llvm-mc: Fix darwin .section parsing. It was skipping the section name and a ',' 
(and outputting a diagnostic pointing at the wrong place), all of which lead to
much confusion.

llvm-svn: 78637
 2009-08-11 03:42:33 +00:00
Chris Lattner
6c20391d38 split MachO section handling stuff out to its out .h/.cpp file. 
llvm-svn: 78576
 2009-08-10 18:15:01 +00:00
Chris Lattner
97189e5d04 add a fixme 
llvm-svn: 78575
 2009-08-10 18:05:55 +00:00
Chris Lattner
cb307a27bf Make the big switch: Change MCSectionMachO to represent a section *semantically* 
instead of syntactically as a string.  This means that it keeps track of the 
segment, section, flags, etc directly and asmprints them in the right format.
This also includes parsing and validation support for llvm-mc and 
"attribute(section)", so we should now start getting errors about invalid 
section attributes from the compiler instead of the assembler on darwin.

Still todo: 
1) Uniquing of darwin mcsections
2) Move all the Darwin stuff out to MCSectionMachO.[cpp|h]
3) there are a few FIXMEs, for example what is the syntax to get the
   S_GB_ZEROFILL segment type?

llvm-svn: 78547
 2009-08-10 01:39:42 +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
089b7de20d switch this to create coff sections for now, it doesn't really matter for 
llvm-mc's purpose yet and we'll want to switch to creating semantic sections
at some point.

llvm-svn: 78509
 2009-08-08 22:38:48 +00:00