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Commit Graph

41 Commits

Author SHA1 Message Date
Rafael Espindola
ed7b5659d4 Remove second return.
llvm-svn: 122616
2010-12-29 02:42:33 +00:00
Rafael Espindola
d51ed1fc6a 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
257de5c4a2 Implement cfi_def_cfa_register.
llvm-svn: 122612
2010-12-29 00:26:06 +00:00
Rafael Espindola
061209eaf3 Initial .cfi_offset implementation.
llvm-svn: 122611
2010-12-29 00:09:59 +00:00
Rafael Espindola
3fdd045643 Implement .cfi_remember_state and .cfi_restore_state.
llvm-svn: 122602
2010-12-28 18:36:23 +00:00
Rafael Espindola
0552cb0638 Start adding basic support for emitting the call frame instructions.
llvm-svn: 122590
2010-12-28 04:15:37 +00:00
Rafael Espindola
12c30aed07 Add support for .cfi_lsda.
llvm-svn: 122584
2010-12-27 15:56:22 +00:00
Rafael Espindola
e7e67fce10 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
81ac7c5fad Rename NeedsSetToChangeDiffSize to HasAggressiveSymbolFolding which is a much
better name and matches what is used in the MachO writer.

llvm-svn: 122443
2010-12-22 21:51:29 +00:00
Matt Beaumont-Gay
64b9dd6a4b Better fix for opt build
llvm-svn: 121910
2010-12-15 23:14:45 +00:00
Matt Beaumont-Gay
d59894002d Fix opt -Werror build
llvm-svn: 121904
2010-12-15 22:21:20 +00:00
Rafael Espindola
102a0b7b74 Generalize an assert.
llvm-svn: 121851
2010-12-15 07:12:24 +00:00
Rafael Espindola
0e665e502d Fixed version of 121434 with no new memory leaks.
llvm-svn: 121471
2010-12-10 07:39:47 +00:00
Rafael Espindola
011e168728 Revert my previous patch to make the valgrind bots happy.
llvm-svn: 121461
2010-12-10 04:01:09 +00:00
Rafael Espindola
03ad1e8f1f Initial support for the cfi directives. This is just enough to get
f:
        .cfi_startproc
        nop
        .cfi_endproc

assembled (on ELF).

llvm-svn: 121434
2010-12-09 23:48:29 +00:00
Devang Patel
bef09ddec8 Add assert to catch an attempt to emit .byte 256
llvm-svn: 121402
2010-12-09 19:26:21 +00:00
Rafael Espindola
3e954d16f4 Second try at making direct object emission produce the same results
as llc + llvm-mc. This time ELF is not changed and I tested that llvm-gcc
bootstrap on darwin10 using darwin9's assembler and linker.

llvm-svn: 121006
2010-12-06 17:27:56 +00:00
Rafael Espindola
4ec917db9b Revert previous two patches while I try to find out how to make both
linux and darwin assemblers happy :-(

llvm-svn: 121004
2010-12-06 15:35:15 +00:00
Rafael Espindola
3dc2b4cba7 Add an EmitAbsValue helper method and use it in cases where we want to be sure
that no relocations are used (on MochO).
Fixes llc producing different output from llc + llvm-mc.

llvm-svn: 121000
2010-12-06 14:53:14 +00:00
Rafael Espindola
ec560cdae3 Make EmitIntValue more efficient and more like what we do for leb128. The
difference is much smaller (about 0.3s) but significant.

llvm-svn: 120787
2010-12-03 02:54:21 +00:00
Rafael Espindola
dc103b1755 Do with uleb the same trick we now do with dwarf line/address advances. This
avoids creating leb128 fragments and speeds up the test in PR8711 to 33s.

llvm-svn: 120774
2010-12-03 01:19:49 +00:00
Rafael Espindola
3e119b0bb4 Try to resolve symbol differences early, and if successful create a plain
data fragment. This reduces the time to assemble the test in 8711 from 60s to
54s.

llvm-svn: 120767
2010-12-03 00:55:40 +00:00
Rafael Espindola
422c24b736 Avoid code duplication in the many unsupported EmitGPRel32Value implementations.
llvm-svn: 120243
2010-11-28 15:09:24 +00:00
Rafael Espindola
e20c3d7c26 Add basic CFI methods to the streamer interface.
llvm-svn: 119972
2010-11-22 14:27:24 +00:00
Rafael Espindola
283e6bd938 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
1db6a21aff Add support for expressions in .sleb/.uleb directives.
llvm-svn: 118023
2010-11-02 17:22:24 +00:00
Rafael Espindola
7a38cb0144 Implement .weakref.
llvm-svn: 117911
2010-11-01 14:28:48 +00:00
Kevin Enderby
767a9365f0 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
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
Michael J. Spencer
7e18da0bce _[A-Z] identifiers are reserved for the implementation.
llvm-svn: 108682
2010-07-19 06:26:19 +00:00
Matt Fleming
eb6f789e6f Grammar fix. This is a test commit.
llvm-svn: 104264
2010-05-20 19:45:09 +00:00
Chris Lattner
b6769a8513 add a twine form of MCStreamer::EmitRawText, and mc'ize
a few more things in AsmPrinter.cpp.

llvm-svn: 100294
2010-04-03 22:12:35 +00:00
Chris Lattner
cf35bb049a add <cstdlib> header for abort() on linux builders.
llvm-svn: 100290
2010-04-03 21:48:59 +00:00
Chris Lattner
4e8e791414 add a new EmitInlineAsm function to asmprinter to handle inline asm.
If we have an MCAsmStreamer, we continue to emit asm textually, 
otherwise we (currently) emit an error to errs and ignore it.

llvm-svn: 100289
2010-04-03 21:35:55 +00:00
Chris Lattner
8147c144d9 add a EmitSymbolValue convenience method to MCStreamer.
llvm-svn: 98017
2010-03-09 00:39:24 +00:00
Chris Lattner
20390f5205 add a new MCAsmStreamer::GetCommentOS method to simplify stuff
that doesn't want to use twines.

llvm-svn: 94199
2010-01-22 19:17:48 +00:00
Chris Lattner
20c1857075 add a new EmitIntValue method that MCStreamer impls can optionally define
and that clients can use.

llvm-svn: 93923
2010-01-19 22:03:38 +00:00
Chris Lattner
336c2b0d47 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
f26d29e436 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
b82fc63e02 Make AsmStreamer maintain a notion of the current section, pushing it up from the
MCAsmStreamer.  Based on this, eliminate the current section from AsmPrinter.

While I'm at it, clean up the last of the horrible "switch to null section" stuff
and add an assert.  This change is in preparation for completely eliminating 
asmprinter::switchtosection.

llvm-svn: 79324
2009-08-18 06:15:16 +00:00
Daniel Dunbar
0e5051b251 Start MCAsmStreamer implementation.
llvm-svn: 74044
2009-06-24 01:03:06 +00:00