8911d03504
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.
llvm-svn: 121856
2010-12-15 07:39:29 +00:00
4886cc8be7
Add some more MC tests for ARM arithmetic instructions that update or don't
...
update the condition codes. These come from my test generator and are just
the ones that MC currently assembles correctly.
llvm-svn: 121830
2010-12-15 01:24:36 +00:00
a9b9300bb8
MC/ARM: Fix-up fixup offset for fixup_arm_branch target specific fixup.
...
llvm-svn: 121772
2010-12-14 17:37:16 +00:00
0a017a6db2
Fixed version of 121434 with no new memory leaks.
...
llvm-svn: 121471
2010-12-10 07:39:47 +00:00
a945a34c73
Revert my previous patch to make the valgrind bots happy.
...
llvm-svn: 121461
2010-12-10 04:01:09 +00:00
56eb741237
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
3164a346e6
Add support for parsing ARM arithmetic instructions that update or don't update
...
the condition codes. Where the ones that do have an 's' suffix and the ones
that don't don't have the suffix. The trick is if MatchInstructionImpl() fails
we try again after adding a CCOut operand with the correct value and removing
the 's' if present. Four simple test cases added for now, lots more to come.
llvm-svn: 121401
2010-12-09 19:19:43 +00:00
87bc591fc5
Allow a slash, '/', as a prefix separator for X86. rdar://8741045
...
llvm-svn: 121320
2010-12-08 23:57:59 +00:00
e78d3b38de
Fix absolute recording of differences of symbols in two sections. Reduced from ctor_dtor_count-2.cpp.
...
llvm-svn: 121152
2010-12-07 17:12:32 +00:00
bdbe5a712d
Fix relocations with weak definitions.
...
llvm-svn: 121114
2010-12-07 05:57:28 +00:00
2eabaae459
Fix pcrel relocations that cross sections.
...
llvm-svn: 121107
2010-12-07 03:50:14 +00:00
a2421ec705
Fix a crash reduced from gcc produced assembly.
...
llvm-svn: 121085
2010-12-07 01:09:54 +00:00
99ea8a3510
Second attempt at converting Thumb2's LDRpci, including updating the gazillion places that need to know about it.
...
llvm-svn: 121082
2010-12-07 00:45:21 +00:00
44bbe36de6
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
ac60adb38d
Don't use PadSectionToAlignment on windows.
...
llvm-svn: 120978
2010-12-06 03:03:44 +00:00
1c8ac8f027
There are two reasons why we might want to use
...
foo = a - b
.long foo
instead of just
.long a - b
First, on darwin9 64 bits the assembler produces the wrong result. Second,
if "a" is the end of the section all darwin assemblers (9, 10 and mc) will not
consider a - b to be a constant but will if the dummy foo is created.
Split how we handle these cases. The first one is something MC should take care
of. The second one has to be handled by the caller.
llvm-svn: 120889
2010-12-04 03:21:47 +00:00
1048e75fb9
Next step: Only pad debug_line when the target is darwin. Add a FIXME to avoid
...
doing that if the target is darwin10 or newer.
This fixes
*) Direct object emission was producing objects without the workaround on
darwin9.
*) Assembly printing was producing objects with the workaround on linux.
llvm-svn: 120866
2010-12-04 00:31:13 +00:00
567ebd0cb5
Encode the 32-bit wide Thumb (and Thumb2) instructions with the high order
...
halfword being emitted to the stream first. rdar://8728174
llvm-svn: 120848
2010-12-03 22:31:40 +00:00
ca7eaaafda
When using the 'push' mnemonic for Thumb2 stmdb, be explicit when it's the
...
32-bit wide version by adding the .w suffix.
llvm-svn: 120838
2010-12-03 20:33:01 +00:00
5fe5f45352
Rename temporary symbols if they conflict with artificial symbols created
...
by the assembler. This was blocking parsing any large .s produced by clang for
example.
Fixes PR8596.
llvm-svn: 120603
2010-12-01 20:46:11 +00:00
943fb60b1f
Add correct encodings for STRD and LDRD, including fixup support. Additionally, update these to unified syntax.
...
llvm-svn: 120589
2010-12-01 19:18:46 +00:00
6187e66801
Add tests for more forms of Thumb2 loads and stores.
...
llvm-svn: 120436
2010-11-30 18:15:21 +00:00
811c936ed5
Add parsing for the Thumb t_addrmode_s4 addressing mode. This can almost
...
certainly be made more generic. But it does allow us to parse something like:
ldr r3, [r2, r4]
correctly in Thumb mode.
llvm-svn: 120408
2010-11-30 07:44:32 +00:00
e22c7322b8
Correct Thumb2 encodings for a much wider range of loads and stores.
...
llvm-svn: 120364
2010-11-30 00:14:31 +00:00
50d662b6cb
Provide Thumb2 encodings for basic loads and stores.
...
llvm-svn: 120340
2010-11-29 22:44:32 +00:00
e6840ef4b3
Fix some broken CHECK lines.
...
llvm-svn: 120332
2010-11-29 22:34:55 +00:00
232e52cfb7
Add more Thumb encodings.
...
llvm-svn: 120279
2010-11-29 01:07:48 +00:00
ccba1a8d95
More Thumb encodings.
...
llvm-svn: 120278
2010-11-29 01:00:43 +00:00
9600e97c60
Add Thumb encodings for REV instructions.
...
llvm-svn: 120277
2010-11-29 00:42:50 +00:00
775899eb2e
Add more Thumb encodings.
...
llvm-svn: 120272
2010-11-29 00:18:15 +00:00
7e8a99b1c3
fix PR8686, accepting a 'b' suffix at the end of all the setcc
...
instructions. I choose to handle this with an asmparser hack,
though it could be handled by changing all the instruction definitions
to allow be "setneb" instead of "setne". The asm parser hack is
better in this case, because we want the disassembler to produce
setne, not setneb.
llvm-svn: 120260
2010-11-28 20:23:50 +00:00
eab0800695
Implement the data16 prefix.
...
llvm-svn: 120224
2010-11-27 20:29:45 +00:00
1440fd3539
macho-dump: Fix typo.
...
llvm-svn: 120185
2010-11-27 04:00:06 +00:00
7c2acd022e
Use multiple 0x66 prefixes so that all nops up to 15 bytes are a single instruction.
...
llvm-svn: 120147
2010-11-25 17:14:16 +00:00
f8e127eaf6
Factor some code to parseSectionFlags and fix the default type of a section.
...
llvm-svn: 120145
2010-11-25 15:32:56 +00:00
9f75d5df0b
Behave a bit more like gnu as and use the symbol (instead of the section)
...
for any relocation to a symbol defined in a tls section.
llvm-svn: 120121
2010-11-24 21:57:39 +00:00
708ac4d6ad
Relocate with the symbol if the relocation is of kind NTPOFF.
...
Patch by David Meyer, I added the test.
llvm-svn: 120104
2010-11-24 19:23:50 +00:00
e98d483b71
Fix and add tests for all cases in x86 and x86_64 where gnu as implicitly
...
sets the type of a symbol to STT_TLS.
llvm-svn: 120100
2010-11-24 18:51:21 +00:00
af9a7a3e92
Testcase for r120017.
...
llvm-svn: 120099
2010-11-24 18:03:57 +00:00
4e70ac7b68
If a symbol is used as tls, mark it as tls even if not declare as so. Probably
...
fixes PR8659.
llvm-svn: 120076
2010-11-24 02:19:40 +00:00
3c7cab1402
Produce a relocation for pcrel absolute values. Based on a patch by David Meyer.
...
llvm-svn: 120006
2010-11-23 07:20:12 +00:00
c01d679928
Add encoding for ARM "trap" instruction.
...
llvm-svn: 119938
2010-11-21 11:05:29 +00:00
b4cd1819fa
implement PR8524, apparently mainline gas accepts movq as an alias for movd
...
when transfering between i64 gprs and mmx regs.
llvm-svn: 119931
2010-11-21 08:18:57 +00:00
26cb15a549
Handle PCRel relocations with absolute values. Fixes PR8656.
...
llvm-svn: 119917
2010-11-21 00:48:25 +00:00
8be14414f6
Added support for the Mach-O .symbol_resolver directive. rdar://8673046
...
llvm-svn: 119816
2010-11-19 18:39:33 +00:00
945b776b6e
Add MC encodings for some Thumb instructions. Test for a few of them. The "bx
...
lr" instruction cannot be tested just yet. It requires matching a "condition
code", but adding one of those makes things go south quickly...
llvm-svn: 119774
2010-11-19 01:33:10 +00:00
2063b84297
Add support for parsing the writeback ("!") token.
...
llvm-svn: 119761
2010-11-18 23:43:05 +00:00
690fa953e1
More tests.
...
llvm-svn: 119756
2010-11-18 23:30:10 +00:00
3517585249
Fix encodings for pkhbt, and fix some tests where I accidentally tested ARM mode instead of Thumb2.
...
llvm-svn: 119755
2010-11-18 23:29:56 +00:00
3fec5ff14b
More Thumb2 encodings.
...
llvm-svn: 119737
2010-11-18 21:15:19 +00:00
3625098459
Fill out the set of Thumb2 multiplication operator encodings.
...
llvm-svn: 119733
2010-11-18 20:32:18 +00:00
d127e7174b
Try again at providing Thumb2 encodings for basic multiplication operators.
...
llvm-svn: 119601
2010-11-18 01:08:42 +00:00
28883834e1
Revert r119593 while I figure out my testing disagrees with the buildbot.
...
llvm-svn: 119597
2010-11-18 00:42:51 +00:00
64aaddcd64
Provide correct Thumb2 encodings for basic multiplication operators.
...
llvm-svn: 119593
2010-11-18 00:19:10 +00:00
307e4688c5
Now that the MBlaze backend is in its own directory, split the test cases into multiple files for different types of instructions.
...
llvm-svn: 119580
2010-11-17 22:54:43 +00:00
55425e7f78
Second attempt at correct encodings for Thumb2 bitfield instructions.
...
llvm-svn: 119575
2010-11-17 22:16:31 +00:00
6c37ceb182
Revert r119551, which broke buildbots.
...
llvm-svn: 119555
2010-11-17 20:48:51 +00:00
7464116bde
Provide Thumb2 encodings for bitfield instructions.
...
llvm-svn: 119551
2010-11-17 20:35:29 +00:00
bced7ae046
More miscellaneous Thumb2 encodings.
...
llvm-svn: 119546
2010-11-17 19:57:38 +00:00
b67912d5cd
Add support for .int.
...
llvm-svn: 119512
2010-11-17 16:24:40 +00:00
5c996894bd
Add support for .2byte, .4byte and .8byte.
...
Fixes PR8631.
llvm-svn: 119511
2010-11-17 16:15:42 +00:00
9898ac97fd
Proper encoding for VLDM and VSTM instructions. The register lists for these
...
instructions have to distinguish between lists of single- and double-precision
registers in order for the ASM matcher to do a proper job. In all other
respects, a list of single- or double-precision registers are the same as a list
of GPR registers.
llvm-svn: 119460
2010-11-17 04:32:08 +00:00
7d19efd6ff
A bit more of gnu as compatibility when handling relocations with aliases.
...
llvm-svn: 119328
2010-11-16 04:11:46 +00:00
92756fff57
Test encodings for LDM and STM.
...
llvm-svn: 119315
2010-11-16 01:38:20 +00:00
05a8daee21
Add Thumb2 encodings for mov and friends.
...
llvm-svn: 119295
2010-11-16 00:29:56 +00:00
d1993eb2a4
Change the 11 byte nop to be a single instruction.
...
llvm-svn: 119286
2010-11-15 23:10:30 +00:00
7d97a99f4c
Provide Thumb2 encodings for sxtb and friends.
...
llvm-svn: 119185
2010-11-15 21:12:05 +00:00
2a3c22efba
Add Thumb2 encodings for comparison and shift operators.
...
llvm-svn: 119176
2010-11-15 19:58:36 +00:00
0e7d728327
Add correct Thumb2 encodings for mvn and friends.
...
llvm-svn: 119170
2010-11-15 18:45:17 +00:00
8c3039b67b
Change MCExpr::EvaluateAsRelocatableImpl of variables to return the original
...
variable if recursing fails to simplify it.
Factor AliasedSymbol to be a method of MCSymbol.
Update MCAssembler::EvaluateFixup to match the change in
EvaluateAsRelocatableImpl.
Remove the WeakRefExpr hack, as the object writer now sees the weakref with
no extra effort needed.
Nothing else is using MCTargetExpr, but keep it for now.
Now that the ELF writer sees relocations with aliases, handle
.weak foo2
foo2:
.weak bar2
.set bar2,foo2
.quad bar2
the same way gas does and produce a relocation with bar2.
llvm-svn: 119152
2010-11-15 16:33:49 +00:00
46c79ef113
Fix PR8565.
...
This moves most of the isUsed logic to the MCSymbol itself. With this we
get a bit more relaxed about allowing definitions after uses: uses that
don't evaluate their argument immediately (jmp foo) are accepted.
ddunbar, this was the smallest compromise I could think of that lets us
accept gcc (and clang!) assembly.
llvm-svn: 119144
2010-11-15 14:40:36 +00:00
240028d11d
Move the logic to decide with which symbol we produce a relocation (if any) to
...
a central location. This also makes us a bit more compatible with gas.
llvm-svn: 119094
2010-11-14 23:53:26 +00:00
a7d0bed336
Fix another case of a .comm directive without a corresponding .type
...
directive.
llvm-svn: 119073
2010-11-14 21:11:16 +00:00
b05ef7377a
Fix the type of a symbol created with .comm and no corresponding .type.
...
llvm-svn: 119060
2010-11-14 19:40:55 +00:00
2cd8b08207
Segregate tests by target.
...
llvm-svn: 119050
2010-11-14 18:14:32 +00:00
7d0ba3464e
Handle a peculiar comdat case: Creating a section with an undefined
...
signature symbol causes a local symbol to be created unless there is
some other use of the symbol.
llvm-svn: 119026
2010-11-14 04:17:37 +00:00
82471189b7
Fixed error and re-enabled MBlaze MC disassembler tests.
...
llvm-svn: 118987
2010-11-13 05:48:21 +00:00
4bcf94c75a
Parse and record the gnu_unique_object type.
...
llvm-svn: 118980
2010-11-13 04:51:02 +00:00
bee283837f
This test stops after disassembling 1 instructions on
...
darwin and, judging from the buildbots, Linux.
Removing it for now, but this is not the right fix,
Wesley please look at it.
llvm-svn: 118977
2010-11-13 03:55:04 +00:00
f01b622902
Parse and remember discriminators in .loc line. I try to output them with
...
another patch.
This lets us parse a bit more of the gcc 4.5 output.
llvm-svn: 118975
2010-11-13 03:18:27 +00:00
99837837ec
Add test cases that should have been committed with 118969.
...
llvm-svn: 118974
2010-11-13 02:51:00 +00:00
b3099e6863
1. Adding test cases for MBlaze MC disassembler.
...
2. Fixing several errors in disassembler uncovered by test cases.
3. Fixing invalid encoding of PCMPEQ and PCMPNE uncovered by test cases.
llvm-svn: 118969
2010-11-13 02:37:59 +00:00
1d37f35eea
Fix the encoding of negative line deltas.
...
llvm-svn: 118962
2010-11-13 01:06:27 +00:00
240162629c
1. Adding missing immediate mode asm parser test cases.
...
2. Fixing improper immediate mode reverse subtract.
llvm-svn: 118948
2010-11-13 00:03:46 +00:00
4b074b8995
Fixing improperly encoded reverse subtract instructions in MBlaze backend.
...
llvm-svn: 118943
2010-11-12 23:41:10 +00:00
c542248602
1. Finishing MBlaze MC asm parser test cases
...
2. Parsing .word directive in MBlaze asm parser
3. Fixing hack where memory instructions reversed order of last two parameters
4. Fixing many improperly encoded instructions
5. Support parsing special instructions (MFS,MTS,etc.)
6. Removing unused functions from inst printer
llvm-svn: 118941
2010-11-12 23:30:17 +00:00
8fdd172502
First stab at providing correct Thumb2 encodings, start with adc.
...
llvm-svn: 118924
2010-11-12 21:12:40 +00:00
87cf7f787e
accept lret as an alias for lretl, fixing the reopened part of PR8592
...
llvm-svn: 118916
2010-11-12 18:54:56 +00:00
5b013b102d
implement PR8592: empirically "lretq" is a "lret" with a rex.w prefix.
...
llvm-svn: 118903
2010-11-12 17:41:20 +00:00
de990b270d
gnu as support both % and @ before types, do the same.
...
llvm-svn: 118893
2010-11-12 15:47:08 +00:00
ce2250fba4
Fill out support for Thumb2 encodings of NEON instructions.
...
llvm-svn: 118854
2010-11-11 23:12:55 +00:00
bf65066a37
Fix tblgen instruction errors exposed by MC asm parser tests
...
Fix minimum 16-bit signed value error exposed by MC asm parser tests
Add initial MC asm parser tests for the MBlaze backend
llvm-svn: 118844
2010-11-11 21:40:53 +00:00
99a8cb4875
Add correct Thumb2 encodings for NEON vst[1,2,3,4] and vld[1,2,3,4].
...
llvm-svn: 118843
2010-11-11 21:36:43 +00:00
a56a2e1fc5
Flesh out tests for Thumb2 encodings of NEON instructions.
...
llvm-svn: 118837
2010-11-11 21:15:47 +00:00
7ffe3b35ac
Add support for Thumb2 encodings of NEON data processing instructions, using the new PostEncoderMethod infrastructure.
...
More tests to come.
llvm-svn: 118819
2010-11-11 19:07:48 +00:00
84d031870c
Mark labels declared in tls sections as STT_TLS. This matches the behavior of
...
gas.
llvm-svn: 118818
2010-11-11 19:04:55 +00:00
a3e9a2298d
Initial comdat implementation.
...
llvm-svn: 118805
2010-11-11 18:13:52 +00:00
fb6540c112
Make AliasedSymbol able to handle MCTargetExpr. They can get here if
...
a weakref is used with a VariantKind.
llvm-svn: 118798
2010-11-11 17:24:43 +00:00
fa7b55754c
Fix the symbol index of weak references. Also make RecordRelocation a bit
...
easier to read by having const references to the symbol, aliased symbol and
renamed symbol.
llvm-svn: 118793
2010-11-11 16:48:11 +00:00
c7baee31ad
Add support for ARM's specialized vector-compare-against-zero instructions.
...
llvm-svn: 118453
2010-11-08 23:21:22 +00:00
Rafael Espindola