Eli Friedman
f4387d9afb
Make the StringMaps attached to MCContext use the MCContext's allocator;
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reduces the number of calls to malloc().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129687 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-18 05:02:31 +00:00
Chris Lattner
7a2bdde0a0
Fix a ton of comment typos found by codespell. Patch by
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Luis Felipe Strano Moraes!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129558 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-15 05:18:47 +00:00
Rafael Espindola
066c2f495a
Be consistent about being virtual and returning void in the cfi methods.
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Implement the ones that were missing in the asm streamer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129413 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12 23:59:07 +00:00
Rafael Espindola
5d7dcd3335
Remove LastOffset from the asm parser.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129378 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12 18:53:30 +00:00
Rafael Espindola
25f492e778
Fix the case of a .cfi_rel_offset before any .cfi_def_cfa_offset.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129362 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12 16:12:03 +00:00
Rafael Espindola
c57543964d
Implement .cfi_same_value.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129361 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12 15:31:05 +00:00
Kevin Enderby
bd3327654b
Adding support for printing operands symbolically to llvm's public 'C'
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disassembler API. Hooked this up to the ARM target so such tools as Darwin's
otool(1) can now print things like branch targets for example this:
blx _puts
instead of this:
blx #-36
And even print the expression encoded in the Mach-O relocation entried for
things like this:
movt r0, :upper16:((_foo-_bar)+1234)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129284 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-11 18:08:50 +00:00
Bill Wendling
44dcfd3625
Replace the old algorithm that emitted the "print the alias for an instruction"
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with the newer, cleaner model. It uses the IAPrinter class to hold the
information that is needed to match an instruction with its alias. This also
takes into account the available features of the platform.
There is one bit of ugliness. The way the logic determines if a pattern is
unique is O(N**2), which is gross. But in reality, the number of items it's
checking against isn't large. So while it's N**2, it shouldn't be a massive time
sink.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129110 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-07 21:20:06 +00:00
Daniel Dunbar
c6cf43d258
MC: Add support for disabling "temporary label" behavior. Useful for debugging
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on Darwin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128430 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-28 22:49:15 +00:00
Jim Grosbach
d31d304f83
Clean up assembly statement separator support.
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128227 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-24 18:46:34 +00:00
Jim Grosbach
b9b1e307f2
Fix comments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128182 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-23 23:32:48 +00:00
Stuart Hastings
65c8bca788
Reapply 127939 since Daniel fixed the breakage. <rdar://problem/9012638>
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127944 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-19 02:42:31 +00:00
Stuart Hastings
825dd96918
Revert 127939. <rdar://problem/9012638>
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127943 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-19 02:33:56 +00:00
Stuart Hastings
7257897402
Revise r126127 to address Daniel's comments. <rdar://problem/9012638>
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127939 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-19 01:32:01 +00:00
Duncan Sands
ba9934648f
Speculatively revert commit 127478 (jsjodin) in an attempt to fix the
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llvm-gcc-i386-linux-selfhost and llvm-x86_64-linux-checks buildbots.
The original log entry:
Remove optimization emitting a reference insted of label difference, since
it can create more relocations. Removed isBaseAddressKnownZero method,
because it is no longer used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127540 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-12 13:07:37 +00:00
Jan Sjödin
e4f6d7461a
Remove optimization emitting a reference insted of label difference, since it can create more relocations. Removed isBaseAddressKnownZero method, because it is no longer used.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127478 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 19:37:02 +00:00
Jan Sjödin
01dff96461
Add constructors to MCElfStreamer and MCObjectStreamer to take an extra MCAssembler * argument.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127343 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-09 17:33:05 +00:00
John McCall
cdc06fa3c7
Typo. Patch by arrowdodger.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127256 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-08 18:01:22 +00:00
Anton Korobeynikov
57caad7a33
Preliminary support for ARM frame save directives emission via MI flags.
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This is just very first approximation how the stuff should be done
(e.g. ARM-only for now). More to follow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127101 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-05 18:43:32 +00:00
Anton Korobeynikov
b5e16af9ea
Some first rudimentary support for ARM EHABI: print exception table in "text mode".
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127099 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-05 18:43:15 +00:00
Cameron Zwarich
f754f50805
Roll out r126425 and r126450 to see if it fixes the failures on the buildbots.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126488 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-25 16:30:32 +00:00
Joerg Sonnenberger
93c65e6e66
Restore r125595 (reverted in r126336) with modifications:
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Introduce a variable in the AsmParserExtension whether [] is valid in an
expression. If it is true, parse them like (). Enable this for ELF only.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126443 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-24 21:59:22 +00:00
Devang Patel
f410608271
Enable DebugInfo support for COFF object files.
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Patch by Nathan Jeffords!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126425 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-24 21:04:00 +00:00
Stuart Hastings
5129bdecd8
Omit private_extern declarations of extern symbols; followup to
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r124468. Patch by Rafael Avila de Espindola!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126297 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-23 02:27:05 +00:00
Joerg Sonnenberger
7d0805dcb8
Use a vector of pairs to implement the section stack, not two
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independent vectors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126099 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 01:07:42 +00:00
Rafael Espindola
908159b46a
Gas is very inconsistent about when a relaxation/relocation is needed. Do
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the right thing and stop trying to copy it. Fixes PR8944.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125648 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-16 03:25:55 +00:00
Rafael Espindola
7768a9dce1
Add support for pushsection and popsection. Patch by Joerg Sonnenberger.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125629 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-16 01:08:29 +00:00
Rafael Espindola
9de3a0701a
Move broken HasCommonSymbols to ELFWriter.cpp.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125490 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-14 16:51:08 +00:00
Jim Grosbach
e5ec5a4177
Remove trailing whitespace.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125385 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-11 18:45:44 +00:00
Jim Grosbach
98311ecb4a
Remove trailing whitespace.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125327 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-11 01:21:00 +00:00
Bob Wilson
c67b1a3a76
Remove trailing whitespace
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124830 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03 23:17:44 +00:00
Rafael Espindola
96aa78c8c5
Add support for the --noexecstack option.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124077 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-23 17:55:27 +00:00
Rafael Espindola
1c13026e8f
Remove more duplicated code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124056 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-23 04:43:11 +00:00
Rafael Espindola
c85dca66e6
Remove duplicated code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124054 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-23 04:28:49 +00:00
Anton Korobeynikov
3965b5e974
Add a possibility to switch between CFI directives- and table-based frame description emission. Currently all the backends use table-based stuff.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123476 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-14 21:58:08 +00:00
Evan Cheng
7597212abc
Model :upper16: and :lower16: as ARM specific MCTargetExpr. This is a step
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in the right direction. It eliminated some hacks and will unblock codegen
work. But it's far from being done. It doesn't reject illegal expressions,
e.g. (FOO - :lower16:BAR). It also doesn't work in Thumb2 mode at all.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123369 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-13 07:58:56 +00:00
Daniel Dunbar
b2624eda5a
MC/Mach-O/Thumb: Set the thumb bit in the symbol table.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122630 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-29 14:14:06 +00:00
Rafael Espindola
b40a71fda1
Implement cfi_def_cfa. Also don't convert to dwarf reg numbers twice. Looks
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like 6 is a fixed point of that and so the previous tests were OK :-)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122614 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-29 01:42:56 +00:00
Rafael Espindola
fe024d0a62
Implement .cfi_remember_state and .cfi_restore_state.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122602 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-28 18:36:23 +00:00
Rafael Espindola
245a1e2041
Relax address updates in the eh_frame section.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122591 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-28 05:39:27 +00:00
Rafael Espindola
5bba084253
Start adding basic support for emitting the call frame instructions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122590 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-28 04:15:37 +00:00
Rafael Espindola
bdc3167c08
Add support for .cfi_lsda.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122584 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-27 15:56:22 +00:00
Rafael Espindola
3a83c40ab6
Add support for the same encodings of the personality function that gnu as
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supports.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122577 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-27 00:36:05 +00:00
Rafael Espindola
d7c8ccae8e
Add basic support for .cfi_personality.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122566 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-26 20:20:31 +00:00
Rafael Espindola
fea753b397
Merge IsFixupFullyResolved and IsSymbolRefDifferenceFullyResolved. We now
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have a single point where targets test if a relocation is needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122549 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-24 21:22:02 +00:00
Rafael Espindola
90a5a0cd7c
Rename NeedsSetToChangeDiffSize to HasAggressiveSymbolFolding which is a much
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better name and matches what is used in the MachO writer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122443 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-22 21:51:29 +00:00
Rafael Espindola
33a38a1b5a
Use references and simplify.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122405 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-22 16:11:57 +00:00
Rafael Espindola
7a45903bf4
Don't relax org or align. They change size as the relaxation happens, but they
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are not actually relaxed. For example, a section with only alignments will never
needs relaxation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122356 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21 20:35:18 +00:00
Daniel Dunbar
e1feeb9da4
MC/Mach-O: Shuffle enums a bit to make it harder to inadvertently use the wrong
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type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122334 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21 15:26:45 +00:00
Rafael Espindola
62b83b62f3
Layout one section until no relaxations are done and then move to the next
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section.
This helps because in practice sections form a dag with debug sections pointing
to text sections. Finishing up the text sections first makes the debug section
relaxation trivial.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122314 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21 04:22:09 +00:00