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bff66a86e6
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975 Commits

Author SHA1 Message Date
Rafael Espindola
bff66a86e6 Move some data to the TargetWriter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122134 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-18 03:27:34 +00:00
Owen Anderson
175fb36f10 Thumb's forced-PC-alignment requirement applies to the _total_ displacement, not just to the fragment relative 
portion.  While the fragment boundary is usually already aligned, it is possible for it not to be, which 
would lead to a non-aligned final displacement.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122091 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 21:49:48 +00:00
Rafael Espindola
31f3578b00 Store and free the TargetObjectWriter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122070 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 18:01:31 +00:00
Rafael Espindola
6024c97ffa Stub out explicit MCELFObjectTargetWriter interface. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122067 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 17:45:22 +00:00
Rafael Espindola
285b3e5b61 Move createELFObjectWriter to its own header. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122064 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 16:59:53 +00:00
Rafael Espindola
127a6a47bd Use getFixupKindInfo to implement isFixupKindPCRel, ELF version. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122050 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 07:28:17 +00:00
Daniel Dunbar
17304b3489 MC/Expr: Implemnt more aggressive folding during symbol evaluation using 
IsSymbolRefDifferenceFullyResolved(). For example, we will now fold away
something like:
--
_a:
...
L0:
...
L1:
...
.long (L1 - L0) / 2
--

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122043 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 05:50:33 +00:00
Daniel Dunbar
b87422778c MC/Mach-O: On second thought, use a custom hook for enabling aggressive 
IsSymbolRefDifferenceFullyResolved, it turns out this does change behavior on
enough cases for x86-32 that I would rather wait a bit on it.
 - In practice, we will want to change this eventually because it only means we
   generate less relocations (it also eliminates the need for the horrible
   '.set' hack that Darwin requires in some places).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122042 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 05:50:29 +00:00
Daniel Dunbar
32c1c5ae5f MC/Mach-O: Implement IsSymbolRefDifferenceFullyResolved. 
- Unlike for fixups, we always do the "reliable" thing (not just for x86_64).
 - Since Darwin 'as' would typically reject things that using this will allow,
   we don't need to worry about compatibility.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122038 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 04:54:58 +00:00
Daniel Dunbar
1f3662abba MC/ObjectWriter: Add a new IsSymbolRefDifferenceFullyResolved target format specific hook. 
- Currently just has stub implementations for Mach-O, ELF, and COFF.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122037 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 04:54:54 +00:00
Daniel Dunbar
5d2477cecf MC/Assembler: Strip out object writer arguments, now that it is always available 
-- and remove FIXME asking for the same!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122032 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 02:45:59 +00:00
Daniel Dunbar
feb7ba3d9a MC/Assembler: Make the MCObjectWriter available through the lifetime of the 
assembler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122031 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 02:45:41 +00:00
Daniel Dunbar
7b62afac0a MC/Target: Remove HasScatteredSymbols target hook variable, which has been 
superceded and was effectively dead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122024 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 02:06:08 +00:00
Daniel Dunbar
8f714fedba MC/Expr: Simplify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122023 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 02:05:45 +00:00
Daniel Dunbar
2d8e3e741f MC: Remove another dead MCAssembler argument, and update clients. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122013 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 01:07:35 +00:00
Daniel Dunbar
92c66c7bf9 MC: Remove dead MCAssembler argument -- Rafael, can you check the FIXME I added 
here?

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122012 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 01:07:31 +00:00
Daniel Dunbar
204e3b65eb MC: Simplify (remove unnecessary MCAssembler argument, obsoleted by containment 
in MCAsmLayout).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122011 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 01:07:28 +00:00
Daniel Dunbar
cdf94e8592 Write => in a more normal form. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122009 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 01:07:22 +00:00
Daniel Dunbar
f2ed62d6bf MC/Expr: Simplify (and add a FIXME). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122008 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 01:07:20 +00:00
Rafael Espindola
dfe125cc9c "Fix" FDE alignment to match what gas does. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122006 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-17 00:28:02 +00:00
Daniel Dunbar
dd18e28c62 MC/Expr: Add a doxyment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121988 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 18:36:25 +00:00
Daniel Dunbar
5d05d9769e MC/Mach-O: Lift some MachObjectWriter arguments into the target specific 
interface.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121981 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 17:21:02 +00:00
Daniel Dunbar
ae5abd595f MC/Mach-O: Stub out explicit MCMachObjectTargetWriter interface. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121973 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 16:09:19 +00:00
Daniel Dunbar
aa4b7dd13b MC/Mach-O: Move createMachObjectWriter into MCMachObjectWriter.h. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121971 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 16:08:33 +00:00
Daniel Dunbar
7e06af85d1 MC/Mach-O: Use fixup info instead of hard coded list. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121970 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 15:42:31 +00:00
Daniel Dunbar
2761fc4270 MC: Move target specific fixup info descriptors to TargetAsmBackend instead of 
the MCCodeEmitter, which seems like a better organization.
 - Also, cleaned up some magic constants while in the area.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121953 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 03:20:06 +00:00
Jason W Kim
f13743bb3c 1. ARM/MC/ELF: A few more ELF relocs for .o 
2. Fixed EmitLocalCommonSymbol for ELF (Yes, they exist. :)
   Test added.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121951 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 03:12:17 +00:00
Daniel Dunbar
745dacc91d MC: Make TargetAsmBackend available to the AsmStreamer. 
- Treaty talks on the non-proliferation of MC objects broke down.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121949 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-16 03:05:59 +00:00
Matt Beaumont-Gay
818b5f5dd7 Better fix for opt build 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121910 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 23:14:45 +00:00
Matt Beaumont-Gay
e194b26ffd Fix opt -Werror build 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121904 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 22:21:20 +00:00
Owen Anderson
d18e011cbb Fix typo in r121875. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121880 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 19:24:24 +00:00
Owen Anderson
47dbd429da Implement cleanups suggested by Daniel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121875 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 18:48:27 +00:00
Rafael Espindola
2bf6afc277 Relax alignment fragments. 
With this we don't need the EffectiveSize field anymore. Without that field
LayoutFragment only updates offsets and we don't need to invalidate the
current fragment when it is relaxed (only the ones following it).

This is also a very small improvement in the accuracy of the layout info as
we now use the after relaxation size immediately.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121857 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 08:45:53 +00:00
Rafael Espindola
f9a4476173 Patch by David Meyer to avoid a O(N^2) behaviour when relaxing fragments. 
Since we now don't update addresses so early, we might relax a bit more than
we need to. This is simillar to the issue in PR8467.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121856 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 07:39:29 +00:00
Rafael Espindola
b35d56c2fe Generalize an assert. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121851 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-15 07:12:24 +00:00
Jim Grosbach
4750020788 ARM Fixups relative to thumb functions need to have the low bit of the value 
set for interworking to work properly. rdar://8755956

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121778 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 18:46:57 +00:00
Jason W Kim
3fa4c1dc95 First cut of ARM/MC/ELF PIC relocations. 
Test has fixme, to move to .s -> .o test when AsmParser works better.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121732 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-13 23:16:07 +00:00
Jim Grosbach
e246717c3a Thumb unconditional branch binary encoding. rdar://8754994 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121496 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 18:21:33 +00:00
Rafael Espindola
89b9372605 Fixed version of 121434 with no new memory leaks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121471 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 07:39:47 +00:00
Rafael Espindola
f7fd4aa261 Revert my previous patch to make the valgrind bots happy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121461 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-10 04:01:09 +00:00
Rafael Espindola
1c952b9cc9 Initial support for the cfi directives. This is just enough to get 
f:
        .cfi_startproc
        nop
        .cfi_endproc

assembled (on ELF).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121434 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 23:48:29 +00:00
Rafael Espindola
5fad7a99c0 Use const references. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121426 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 23:08:35 +00:00
Owen Anderson
05018c2f28 Fix an issue in some Thumb fixups, where the effective PC address needs to be 4-byte aligned when calculating 
the offset.  Add a new fixup flag to represent this, and use it for the one fixups that I have a testcase for needing
this.  It's quite likely that the other Thumb fixups will need this too, and to have their fixup encoding logic
adjusted accordingly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121408 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 20:27:52 +00:00
Jim Grosbach
b492a7c213 Rename CB/CBZ specific fixup accordingly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121404 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 19:50:12 +00:00
Devang Patel
dea914bed9 Add assert to catch an attempt to emit .byte 256 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121402 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-09 19:26:21 +00:00
Jason W Kim
a0871e7927 ARM/MC/ELF TPsoft is now a proper pseudo inst. 
Added test to check bl __aeabi_read_tp gets emitted properly for ELF/ASM
as well as ELF/OBJ (including fixup)

Also added support for ELF::R_ARM_TLS_IE32



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121312 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 23:14:44 +00:00
Bill Wendling
dff2f7151f Support the "target" encodings for the CB[N]Z instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121308 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 23:01:43 +00:00
Bill Wendling
b8958b031e Add support for loading from a constant pool. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121226 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 01:57:09 +00:00
Jim Grosbach
5be6d2af38 Let target asm backends see assembler flags as they go by. Use that to handle 
thumb vs. arm mode differences in WriteNopData().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121219 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-08 01:16:55 +00:00
Rafael Espindola
4f4363a490 Layout each section independently. With the testcase in PR8711: 
before:
        4 assembler - Number of assembler layout and relaxation steps
    78563 assembler - Number of emitted assembler fragments
  8693904 assembler - Number of emitted object file bytes
   271223 assembler - Number of evaluated fixups
330771677 assembler - Number of fragment layouts
     5958 assembler - Number of relaxed instructions
  2508361 mcexpr    - Number of MCExpr evaluations

real	0m26.123s
user	0m25.694s
sys	0m0.388s

after:

      4 assembler - Number of assembler layout and relaxation steps
  78563 assembler - Number of emitted assembler fragments
8693904 assembler - Number of emitted object file bytes
 271223 assembler - Number of evaluated fixups
 231507 assembler - Number of fragment layouts
   5958 assembler - Number of relaxed instructions
2508361 mcexpr    - Number of MCExpr evaluations

real	0m2.500s
user	0m2.113s
sys	0m0.273s

And yes, the outputs are identical :-)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121207 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 23:32:26 +00:00