35 Commits

Author SHA1 Message Date
Daniel Dunbar
c2346a3037 llvm-mc: When handling a .set, make sure to print subsequent references to the
symbol as the symbol name itself, not the expression it was defined to. These
have different semantics due to the quirky .set behavior (which absolutizes an
expression that would otherwise be treated as a relocation).

llvm-svn: 79025
2009-08-14 19:10:46 +00:00
Daniel Dunbar
563a7e87e3 llvm-mc: zerofill shouldn't print quotes around the section,segment.
llvm-svn: 79017
2009-08-14 18:51:45 +00:00
Daniel Dunbar
80d484e7cc Update llvm-mc / MCAsmStreamer to print the instruction using the actual target
specific printer (this only works on x86, for now).
 - This makes it possible to do some correctness checking of the parsing and
   matching, since we can compare the results of 'as' on the original input, to
   those of 'as' on the output from llvm-mc.

 - In theory, we could now have an easy ATT -> Intel syntax converter. :)

llvm-svn: 78986
2009-08-14 03:48:55 +00:00
Daniel Dunbar
aba5fb8c9a llvm-mc: Add dummy MCStreamer implementation, (eventually) for use in profiling.
- Currently unused.

 - A few other random comment fixes lumped in.

llvm-svn: 78960
2009-08-13 23:36:34 +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
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
Daniel Dunbar
e0cbd9b986 llvm-mc: Fix .s output to quote section & symbol names when necessary.
llvm-svn: 77749
2009-07-31 23:04:32 +00:00
Daniel Dunbar
eb6bb32bef llvm-mc: Implement .abort fully in the front end
llvm-svn: 77272
2009-07-27 23:20:52 +00:00
Daniel Dunbar
52d03b252e llvm-mc: Move AsmLexer::getCurStrVal to StringRef based API.
- My DFS traversal of LLVM is, at least for now, nearly complete! :)

llvm-svn: 77258
2009-07-27 21:49:56 +00:00
Kevin Enderby
ee5513582d Removed the DumpSymbolsandMacros and LoadSymbolsandMacros MCStreamer API as
the parsing of the .dump and .load should be done in the assembly parser and
not have any need for an MCStreamer API.  Changed the code for now so these
just produce an error saying these specific directives are not yet implemented
since they are likely no longer used and may never need to be implemented.

llvm-svn: 76462
2009-07-20 20:25:37 +00:00
Kevin Enderby
dd27e5e10a Removed the SubsectionsViaSymbols MCStreamer API and replaced it with a generic
EmitAssemblerFlag API which takes a value from the added AssemblerFlag
enumerated constants.

llvm-svn: 76087
2009-07-16 17:56:39 +00:00
Chris Lattner
693fbb8fee implement .include in the lexer/parser instead of passing it into the streamer.
llvm-svn: 75896
2009-07-16 06:14:39 +00:00
Kevin Enderby
09ea5709a2 Added llvm-mc support for parsing the .dump and .load directives.
llvm-svn: 75786
2009-07-15 15:30:11 +00:00
Kevin Enderby
d1ea5393c9 Added llvm-mc support for parsing the .include directive.
llvm-svn: 75711
2009-07-14 23:21:55 +00:00
Kevin Enderby
cbe475dfe8 Added llvm-mc support for parsing the .lsym directive.
llvm-svn: 75685
2009-07-14 21:35:03 +00:00
Kevin Enderby
4c21caa656 Added llvm-mc support for parsing the .desc directive.
llvm-svn: 75645
2009-07-14 18:17:10 +00:00
Torok Edwin
fbcc663cbf llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable.
This adds location info for all llvm_unreachable calls (which is a macro now) in
!NDEBUG builds.
In NDEBUG builds location info and the message is off (it only prints
"UREACHABLE executed").

llvm-svn: 75640
2009-07-14 16:55:14 +00:00
Kevin Enderby
56523ceba1 Added llvm-mc support for parsing the .abort directive.
llvm-svn: 75545
2009-07-13 23:15:14 +00:00
Kevin Enderby
c9d93ef2c6 add llvm-mc support for parsing the .subsections_via_symbols directive.
llvm-svn: 75500
2009-07-13 21:03:15 +00:00
Torok Edwin
56d0659726 assert(0) -> LLVM_UNREACHABLE.
Make llvm_unreachable take an optional string, thus moving the cerr<< out of
line.
LLVM_UNREACHABLE is now a simple wrapper that makes the message go away for
NDEBUG builds.

llvm-svn: 75379
2009-07-11 20:10:48 +00:00
Chris Lattner
07cadaf113 add support for .zerofill, patch by Kevin Enderby!
llvm-svn: 75301
2009-07-10 22:20:30 +00:00
Chris Lattner
28ad7547d2 add llvm-mc support for parsing the .lcomm directive, patch by Kevin Enderby!
llvm-svn: 75148
2009-07-09 17:25:12 +00:00
Chris Lattner
a1e11f530e Implement parsing support for the .comm directive. Patch by
Kevin Enderby!

llvm-svn: 74944
2009-07-07 20:30:46 +00:00
Daniel Dunbar
23a72aa476 Dump MCInsts in the MC .s printer, for now.
llvm-svn: 74593
2009-07-01 06:35:03 +00:00
Daniel Dunbar
cc566a714b llvm-mc: Parse .{,b,p2}align{,w,l} directives.
llvm-svn: 74478
2009-06-29 23:46:59 +00:00
Torok Edwin
6fb3e98eed Initialize CurSection in constructor.
Not doing so causes some unittests to fail, because CurSection is uninitialized.

llvm-svn: 74442
2009-06-29 19:59:10 +00:00
Daniel Dunbar
a97615adf8 Rename MCValue::getCst to getConstant and add MCValue::isConstant.
llvm-svn: 74440
2009-06-29 19:51:00 +00:00
Daniel Dunbar
188e87fa21 MC: Truncate values when printing, to keep 'as' happy.
llvm-svn: 74201
2009-06-25 21:03:18 +00:00
Daniel Dunbar
71ea89dd86 Sketch streamer support for .align, .org functionality.
llvm-svn: 74109
2009-06-24 19:25:34 +00:00
Daniel Dunbar
f782ebc0cb We decided to not worry about Atoms for now, it should be straightforward to
reintroduce them later.

Also, don't require MCSection* when creating a symbol.

llvm-svn: 74081
2009-06-24 17:00:42 +00:00
Daniel Dunbar
59ff06e83c MCStreamer: Add a few more "symbol attributes".
llvm-svn: 74077
2009-06-24 16:36:52 +00:00
Daniel Dunbar
de5777022c MCStreamer: Test printing values.
llvm-svn: 74076
2009-06-24 16:05:35 +00:00
Chris Lattner
3f5738d599 add trivial support for passing label definitions through the MCStreamer.
This is suboptimal in several aspects, see the commented out assertion.
I need to talk to Daniel about this.

llvm-svn: 74057
2009-06-24 04:31:49 +00:00
Daniel Dunbar
9faf273fc4 Start MCAsmStreamer implementation.
llvm-svn: 74044
2009-06-24 01:03:06 +00:00