Commit Graph

1792 Commits

Author SHA1 Message Date
Jim Grosbach f86cd37bef Thumb assembly parsing and encoding for MOV.
llvm-svn: 138076
2011-08-19 20:46:54 +00:00
Jim Grosbach 1eb6eb0955 Thumb assembly parsing and encoding for LSR.
llvm-svn: 138065
2011-08-19 19:34:22 +00:00
Jim Grosbach 3245520ade Thumb assembly parsing and encoding for LSL(register).
llvm-svn: 138064
2011-08-19 19:30:58 +00:00
Jim Grosbach 5503c3a4e8 Thumb assembly parsing and encoding for LSL(immediate).
llvm-svn: 138063
2011-08-19 19:29:25 +00:00
Jim Grosbach 7c4739da3c Thumb assembly parsing and encoding for LDRSB and LDRSH.
llvm-svn: 138061
2011-08-19 19:17:58 +00:00
Jim Grosbach 26d3587bd8 Thumb assembly parsing and encoding for LDRH.
llvm-svn: 138060
2011-08-19 18:55:51 +00:00
Jim Grosbach a32c753ebf Thumb assembly parsing and encoding for LDRB.
llvm-svn: 138059
2011-08-19 18:49:59 +00:00
Jim Grosbach 106281f329 Thumb assembly parsing and encoding for LDR(register).
llvm-svn: 138056
2011-08-19 18:35:06 +00:00
Jim Grosbach 181d2f92b5 Thumb assembly parsing and encoding for LDR(literal).
llvm-svn: 138052
2011-08-19 18:20:48 +00:00
Jim Grosbach 23983d6bd9 Thumb assembly parsing and encoding for LDR(immediate) form T2.
llvm-svn: 138050
2011-08-19 18:13:48 +00:00
Jim Grosbach 3fe94e3ef8 Thumb assembly parsing and encoding for LDR(immediate) form T1.
llvm-svn: 138047
2011-08-19 17:55:24 +00:00
Craig Topper ba6c2a52c7 Add TB encoding to VEX versions of SSE fp logical operations to fix disassembler
llvm-svn: 138034
2011-08-19 05:28:50 +00:00
Bruno Cardoso Lopes 22241acc29 Fix PR10677. Initial patch and idea by Peter Cooper but I've changed the
implementation!

llvm-svn: 138029
2011-08-19 02:23:56 +00:00
Owen Anderson 96b7ad2e17 STC2L_POST and STC2L_POST should be handled the same as STCL_POST/LDC_POST for the purposes of decoding all operands except the predicate.
Found by randomized testing.

llvm-svn: 138003
2011-08-18 22:47:44 +00:00
Owen Anderson 192a760b54 Fix the decoding of RFE instruction. RFEs have the load bit set, while SRSs have it unset.
llvm-svn: 138000
2011-08-18 22:31:17 +00:00
Owen Anderson 67d6f11974 Improve handling of failure and unpredictable cases for CPS, STR, and SMLA instructions.
Fixes a large class of disassembler crashes found by randomized testing.

llvm-svn: 137995
2011-08-18 22:11:02 +00:00
Jim Grosbach 90103ccc05 Thumb assembly parsing and encoding for LDM instruction.
Fix base register type and canonicallize to the "ldm" spelling rather than
"ldmia." Add diagnostics for incorrect writeback token and out-of-range
registers.

llvm-svn: 137986
2011-08-18 21:50:53 +00:00
Owen Anderson 627021d7c0 More Thumb1 decoding tests.
llvm-svn: 137974
2011-08-18 20:05:06 +00:00
Jim Grosbach 6cb336cb09 Thumb assembly parsing and encoding for EOR.
llvm-svn: 137964
2011-08-18 18:10:38 +00:00
Jim Grosbach 4f240a1fd5 Thumb assembly parsing and encoding for CMP.
llvm-svn: 137963
2011-08-18 18:08:29 +00:00
James Molloy 9f9371ccb3 Test commit; adding test for invalid LDRD which was part of the patch for r137647 but seemingly didn't get svn add'ed.
llvm-svn: 137960
2011-08-18 18:03:02 +00:00
Jim Grosbach 47bf39d921 Thumb assembly parsing and encoding test for CMN.
llvm-svn: 137957
2011-08-18 17:55:03 +00:00
Owen Anderson ec3884c50a Port over BL/BLX to disassembly tests.
llvm-svn: 137954
2011-08-18 17:43:52 +00:00
Jim Grosbach 0081879ee7 ARM assembly parsing and encoding test for BX/BLX (register).
llvm-svn: 137949
2011-08-18 17:02:28 +00:00
Jim Grosbach 8b7158e557 ARM assembly parsing and encoding test for BL/BLX (immediate).
llvm-svn: 137948
2011-08-18 17:00:09 +00:00
Owen Anderson a90896397b Port new Thumb1 encoding tests over to decoding tests.
llvm-svn: 137902
2011-08-17 23:37:33 +00:00
Jim Grosbach 1b43828958 ARM assembly parsing and encoding test for BKPT.
llvm-svn: 137898
2011-08-17 23:11:13 +00:00
Jim Grosbach e3bdcd0ea8 ARM assembly parsing and encoding test for BIC.
llvm-svn: 137895
2011-08-17 23:00:53 +00:00
Jim Grosbach cbd4ab104b Thumb assembly parsing and encoding for B.
llvm-svn: 137891
2011-08-17 22:57:40 +00:00
Jim Grosbach d3e8e29124 Thumb assembly parsing and encoding for ASR.
llvm-svn: 137889
2011-08-17 22:49:09 +00:00
Jim Grosbach e2a0404a69 Thumb assembly parsing and encoding for ADR.
llvm-svn: 137864
2011-08-17 20:37:40 +00:00
Jim Grosbach e2d152016f Add a couple of FIXMEs.
llvm-svn: 137861
2011-08-17 20:35:57 +00:00
Owen Anderson d40d838cc4 Start building a Thumb1 decoding test file based on the Thumb1 parsing/encoding test file.
llvm-svn: 137840
2011-08-17 18:21:36 +00:00
Jim Grosbach 80636b48c0 Thumb assembly parsing and encoding for ADC(register) instruction.
llvm-svn: 137833
2011-08-17 17:55:28 +00:00
Jim Grosbach a806eebe13 Add missing '@' delimiter.
llvm-svn: 137832
2011-08-17 17:46:01 +00:00
Owen Anderson a4043c4b32 Allow the MCDisassembler to return a "soft fail" status code, indicating an instruction that is disassemblable, but invalid. Only used for ARM UNPREDICTABLE instructions at the moment.
Patch by James Molloy.

llvm-svn: 137830
2011-08-17 17:44:15 +00:00
Jim Grosbach e9ab47a72a Thumb ADD(immediate) parsing support.
llvm-svn: 137788
2011-08-16 23:57:34 +00:00
Jim Grosbach b7fa2c0a53 Thumb parsing diagnostics for low-reg requirements on ADD and MOV.
llvm-svn: 137779
2011-08-16 22:20:01 +00:00
Jim Grosbach 58ffdccab1 Thumb assembly parsing and encoding for ADD(register) instruction.
llvm-svn: 137759
2011-08-16 21:34:08 +00:00
Jim Grosbach 2c21bf4b43 Add testcase for r137746.
llvm-svn: 137754
2011-08-16 21:11:21 +00:00
Jim Grosbach d3ad0aa413 Tidy up formatting.
llvm-svn: 137747
2011-08-16 20:55:41 +00:00
Jim Grosbach 3e941aee69 ARM thumb assembly parsing for arithmetic flag setting instructions.
Thumb one requires that many arithmetic instruction forms have an 'S'
suffix. For Thumb2, the whether the suffix is required or precluded depends
on whether the instruction is in an IT block. Use target parser predicates
to check for these sorts of context-sensitive constraints.

llvm-svn: 137746
2011-08-16 20:45:50 +00:00
Jim Grosbach 45e50d8a0b ARM .align NOP padding uses different encoding pre-ARMv6.
Patch by Kristof Beyls and James Malloy.

llvm-svn: 137723
2011-08-16 17:06:20 +00:00
Owen Anderson 53440984b3 Add a test file for Thumb2 NEON.
llvm-svn: 137687
2011-08-15 23:42:20 +00:00
Bruno Cardoso Lopes 67005029bc Reorder declarations of vmovmskp* and also put the necessary AVX
predicate and TB encoding fields. This fix the encoding for the
attached testcase. This fixes PR10625.

llvm-svn: 137684
2011-08-15 23:36:45 +00:00
Owen Anderson 5286bd2d01 Add some more comprehensive VFP decoding tests.
llvm-svn: 137657
2011-08-15 21:29:01 +00:00
Owen Anderson 1d5d2cac8c Enforce the constraint that Rt must be even on LDRD/STRD instructions in ARM mode. Update tests to reflect this fact.
Patch by James Molloy.

llvm-svn: 137647
2011-08-15 20:51:32 +00:00
Owen Anderson 944f4923a4 Add a test for Thumb1 LDRSH decoding.
llvm-svn: 137645
2011-08-15 20:15:43 +00:00
Owen Anderson f746b0ec53 Add testcase for STRH. Patch by James Molloy.
llvm-svn: 137644
2011-08-15 20:12:03 +00:00
Owen Anderson 61a3ece665 Fix incorrect encoding of UMAAL and friends. Patch by James Molloy.
llvm-svn: 137641
2011-08-15 20:08:25 +00:00
Owen Anderson 3157f2eebe Fix decoding LDRSB and LDRSH in Thumb1 mode. Patch by James Molloy.
llvm-svn: 137636
2011-08-15 19:00:06 +00:00
Owen Anderson b9d82f411c Fix problems decoding the to/from-lane NEON memory instructions, and add a comprehensive NEON decoding testcase.
llvm-svn: 137635
2011-08-15 18:44:44 +00:00
Owen Anderson 2d1d7a11f8 Fix some remaining issues with decoding ARM-mode memory instructions, and add another batch of tests.
llvm-svn: 137502
2011-08-12 20:36:11 +00:00
Owen Anderson ed6d3e813e Port over the basic ARM encodings test file to a decoding test file. Greatly increases our test coverage of basic ARM-mode instructions.
llvm-svn: 137495
2011-08-12 19:42:45 +00:00
Jim Grosbach d1b60f7a6d Tidy up formatting.
llvm-svn: 137471
2011-08-12 17:43:31 +00:00
Jim Grosbach 234317d12a Tidy up formatting.
llvm-svn: 137464
2011-08-12 17:01:02 +00:00
Benjamin Kramer 91ea511436 MachOWriter: Don't crash on fixups with arithmetic, emit a relocation instead. This matches what as does.
llvm-svn: 137414
2011-08-12 01:51:29 +00:00
Jim Grosbach 1978ddf769 Clean up formatting a bit.
llvm-svn: 137393
2011-08-11 23:57:17 +00:00
Jim Grosbach 8cffa28af8 ARM vector compare to zero instruction assembly parsing support.
llvm-svn: 137389
2011-08-11 23:51:13 +00:00
Jim Grosbach aa07cb6a98 Fix tests per now-correct encoding as of r137371.
llvm-svn: 137376
2011-08-11 22:31:48 +00:00
Jim Grosbach e25942154c ARM STRT assembly parsing and encoding.
llvm-svn: 137372
2011-08-11 22:18:00 +00:00
Jim Grosbach a2b8b60646 ARM load shifted register pre-index fix shift value asm parser encoding.
llvm-svn: 137367
2011-08-11 22:05:09 +00:00
Jim Grosbach 7db3bfbd45 ARM STRHT assembly parsing and encoding.
llvm-svn: 137358
2011-08-11 21:39:41 +00:00
Jim Grosbach d886f8cd8d ARM STRH assembly parsing and encoding.
llvm-svn: 137353
2011-08-11 21:17:22 +00:00
Owen Anderson 3a850f28d0 Fix decoding for indexed STRB and LDRB. Fixes <rdar://problem/9926161>.
llvm-svn: 137347
2011-08-11 20:47:56 +00:00
Owen Anderson 887c0b1358 Improve operand validation for Thumb2 addressing modes.
llvm-svn: 137344
2011-08-11 20:40:40 +00:00
Jim Grosbach eb09f49a7f ARM STRD assembly parsing and encoding.
llvm-svn: 137342
2011-08-11 20:28:23 +00:00
Owen Anderson 6066340301 Continue to tighten decoding by performing more operand validation.
llvm-svn: 137340
2011-08-11 20:21:46 +00:00
Jim Grosbach 2a50260f2f ARM STRBT assembly parsing and encoding.
llvm-svn: 137337
2011-08-11 20:04:56 +00:00
Jim Grosbach d0767f37c1 Add FIXME.
llvm-svn: 137336
2011-08-11 19:43:42 +00:00
Jim Grosbach 295788756d ARM STRB assembly parsing and encoding tests.
llvm-svn: 137335
2011-08-11 19:42:58 +00:00
Jim Grosbach 14a4164206 Fix a copy/paste error so that LDRB(register) actually gets tested.
llvm-svn: 137333
2011-08-11 19:34:23 +00:00
Jim Grosbach 06b7f0c901 ARM STR(register) assembly parsing and encoding tests.
llvm-svn: 137332
2011-08-11 19:26:17 +00:00
Jim Grosbach d564bf3181 ARM STR(immediate) assembly parsing and encoding.
llvm-svn: 137331
2011-08-11 19:22:40 +00:00
Owen Anderson 3477f2cea5 Tighten decoding of addrmode2 instructions to reject more UNPREDICTABLE cases.
llvm-svn: 137325
2011-08-11 19:00:18 +00:00
Owen Anderson 0e15b48f3c Tighten operand decoding of addrmode2 instruction. The offset register cannot be PC.
llvm-svn: 137323
2011-08-11 18:55:42 +00:00
Owen Anderson e33c95d39b Correct immediate range for shifter operands. Patch by James Molloy, with additional encoding fixes added by me.
llvm-svn: 137322
2011-08-11 18:41:59 +00:00
Owen Anderson ed25385227 Improve error checking in the new ARM disassembler. Patch by James Molloy.
llvm-svn: 137320
2011-08-11 18:24:51 +00:00
Jim Grosbach 27ad83d8a9 ARM push of a single register encodes as pre-indexed STR.
Per the ARM ARM, a 'push' of a single register encodes as an STR,
not an STM.

llvm-svn: 137318
2011-08-11 18:07:11 +00:00
Jim Grosbach 8ba76c6d5c ARM pop of a single register encodes as post-indexed LDR.
Per the ARM ARM, a 'pop' of a single register encodes as an LDR,
not an LDM.

llvm-svn: 137316
2011-08-11 17:35:48 +00:00
Jim Grosbach 94ba2cba6e ARM tests for LDRSHT assembly parsing and encoding.
llvm-svn: 137274
2011-08-10 23:18:30 +00:00
Jim Grosbach a6ab52bf9f ARM tests for LDRSH assembly parsing and encoding.
llvm-svn: 137272
2011-08-10 23:12:25 +00:00
Jim Grosbach 2953404723 ARM tests for LDRSBT assembly parsing and encoding.
llvm-svn: 137271
2011-08-10 23:08:56 +00:00
Jim Grosbach c11bbf3bda ARM tests for LDRSB assembly parsing and encoding.
llvm-svn: 137270
2011-08-10 23:06:44 +00:00
Jim Grosbach 35cdf36c32 Add FIXME.
llvm-svn: 137265
2011-08-10 22:56:43 +00:00
Jim Grosbach 5e0c9711f2 ARM tests for LDRHT assembly parsing and encoding.
llvm-svn: 137263
2011-08-10 22:55:38 +00:00
Jim Grosbach 7cd4253cc3 ARM tests for LDRH(register) assembly parsing and encoding.
llvm-svn: 137261
2011-08-10 22:45:42 +00:00
Jim Grosbach cd4dd255c0 ARM LDRH(immediate) assembly parsing and encoding support.
llvm-svn: 137260
2011-08-10 22:42:16 +00:00
Jim Grosbach ae1b002fa3 Add FIXME
llvm-svn: 137258
2011-08-10 22:20:38 +00:00
Jim Grosbach 1d9d5e93d1 ARM LDRD(register) assembly parsing and encoding.
Add support for literal encoding of #-0 along the way.

llvm-svn: 137254
2011-08-10 21:56:18 +00:00
Jim Grosbach 5b96b80644 ARM LDRD(immediate) assembly parsing and encoding support.
llvm-svn: 137244
2011-08-10 20:29:19 +00:00
Owen Anderson c86a5bd219 Add initial support for decoding NEON instructions in Thumb2 mode.
llvm-svn: 137236
2011-08-10 19:01:10 +00:00
Owen Anderson 8059f0cf8d Push GPRnopc through a large number of instruction definitions to tighten operand decoding.
llvm-svn: 137189
2011-08-10 00:03:03 +00:00
Owen Anderson 92b942b1b5 Tighten operand checking of register-shifted-register operands.
llvm-svn: 137180
2011-08-09 23:33:27 +00:00
Owen Anderson e008931bf6 Tighten operand checking on memory barrier instructions.
llvm-svn: 137176
2011-08-09 23:25:42 +00:00
Owen Anderson 3d2e0e9db6 Tighten operand checking on CPS instructions.
llvm-svn: 137172
2011-08-09 23:05:39 +00:00
Owen Anderson 042619f97d Create a new register class for the set of all GPRs except the PC. Use it to tighten our decoding of BFI.
llvm-svn: 137168
2011-08-09 22:48:45 +00:00
Benjamin Kramer 406dc1755f ARM Disassembler: sign extend branch immediates.
Not sure about BLXi, but this is what the old disassembler did.

llvm-svn: 137156
2011-08-09 22:02:50 +00:00
Owen Anderson 7a2401dbf0 Tighten Thumb1 branch predicate decoding.
llvm-svn: 137146
2011-08-09 21:07:45 +00:00
Owen Anderson e0152a73c2 Replace the existing ARM disassembler with a new one based on the FixedLenDecoderEmitter.
This new disassembler can correctly decode all the testcases that the old one did, though
some "expected failure" testcases are XFAIL'd for now because it is not (yet) as strict in
operand checking as the old one was.

llvm-svn: 137144
2011-08-09 20:55:18 +00:00
Jim Grosbach cab35c0836 ARM parsing and encoding for LDRBT instruction.
Fix the instruction representation to correctly only allow post-indexed form.
Add tests.

llvm-svn: 137074
2011-08-08 23:28:47 +00:00
Jim Grosbach 5838c0c47e ARM parsing and encoding for LDRB instruction.
llvm-svn: 137071
2011-08-08 22:37:06 +00:00
Jim Grosbach f6dbc3a57c Add FIXME.
llvm-svn: 137070
2011-08-08 22:11:33 +00:00
Jim Grosbach 3d0b3a3a50 ARM load instruction shifted register index operands.
Parsing and encoding for shifted index operands for load instructions.

llvm-svn: 136986
2011-08-05 22:03:36 +00:00
Jim Grosbach c320c85261 ARM indexed load assembly parsing and encoding.
More parsing support for indexed loads. Fix pre-indexed with writeback
parsing for register offsets and handle basic post-indexed offsets.

llvm-svn: 136982
2011-08-05 21:28:30 +00:00
Jim Grosbach 0f2dd284e9 Add ARM LDR parsing tests.
llvm-svn: 136977
2011-08-05 20:33:39 +00:00
Rafael Espindola 77dde89b90 Fix the bitwidth of the remaining fields.
llvm-svn: 136884
2011-08-04 17:00:11 +00:00
Rafael Espindola 9bc32a96be print st_shndx with the correct number of bits.
llvm-svn: 136880
2011-08-04 15:50:13 +00:00
Rafael Espindola 9528995e3f print st_other with the correct number of bits.
llvm-svn: 136877
2011-08-04 15:38:19 +00:00
Rafael Espindola 96df560ce1 print st_type with the correct number of bits.
llvm-svn: 136875
2011-08-04 15:24:00 +00:00
Rafael Espindola 79ef75dc49 Print st_bind with the correct number of bits.
llvm-svn: 136874
2011-08-04 15:10:35 +00:00
Rafael Espindola 1848231ad1 Print r_sym with the correct number of bits.
llvm-svn: 136873
2011-08-04 14:48:27 +00:00
Rafael Espindola 260af5cef6 Print r_type with the correct number of bits.
llvm-svn: 136872
2011-08-04 14:39:30 +00:00
Rafael Espindola 1b282e7e49 Another counter goes decimal.
llvm-svn: 136871
2011-08-04 14:27:46 +00:00
Rafael Espindola 65c559c5fb Change anther counter to decimal.
llvm-svn: 136870
2011-08-04 14:01:03 +00:00
Rafael Espindola cad9e7f094 Don't print a counter in hex.
llvm-svn: 136869
2011-08-04 13:39:15 +00:00
Rafael Espindola 69c67d3b18 Print all the bits in the addend.
llvm-svn: 136867
2011-08-04 13:00:24 +00:00
Jason W Kim e4df09f7ba Fix http://llvm.org/bugs/show_bug.cgi?id=10568
Move the reloc size assert into AsmBackend - where it is more apropos.

llvm-svn: 136855
2011-08-04 00:38:45 +00:00
Jim Grosbach d359571120 ARM refactoring assembly parsing of memory address operands.
Memory operand parsing is a bit haphazzard at the moment, in no small part
due to the even more haphazzard representations of memory operands in the .td
files. Start cleaning that all up, at least a bit.

The addressing modes in the .td files will be being simplified to not be
so monolithic, especially with regards to immediate vs. register offsets
and post-indexed addressing. addrmode3 is on its way with this patch, for
example.

This patch is foundational to enable going back to smaller incremental patches
for the individual memory referencing instructions themselves. It does just
enough to get the basics in place and handle the "make check" regression tests
we already have.

Follow-up work will be fleshing out the details and adding more robust test
cases for the individual instructions, starting with ARM mode and moving from
there into Thumb and Thumb2.

llvm-svn: 136845
2011-08-03 23:50:40 +00:00
Jim Grosbach 51726e2147 ARM SRS instruction parsing, diassembly and encoding support.
Fix the instruction encoding for operands. Refactor mode to use explicit
instruction definitions per FIXME to be more consistent with loads/stores.
Fix disassembler accordingly. Add tests.

llvm-svn: 136509
2011-07-29 20:26:09 +00:00
Jim Grosbach c4dc52cd52 ARM assembly parsing and encoding for RFE instruction.
Fill in the missing fixed bits and the register operand bits of the instruction
encoding. Refactor the definition to make the mode explicit, which is
consistent with how loads and stores are normally represented and makes
parsing much easier. Add parsing aliases for pseudo-instruction variants.
Update the disassembler for the new representations. Add tests for parsing and
encoding.

llvm-svn: 136479
2011-07-29 18:47:24 +00:00
Jim Grosbach 1c1d2438aa ARM update tests for CPS instruction.
llvm-svn: 136472
2011-07-29 17:39:27 +00:00
Jim Grosbach b9bebc1b03 CBZ/CBNZ are Thumb2 only. No need for ARM mode tests for them.
llvm-svn: 136408
2011-07-28 21:59:38 +00:00
Jim Grosbach a03ab0e3dc ARM assembly parsing and encoding for BLX (immediate).
Add parsing support for BLX (immediate). Since the register operand version is
predicated and the label operand version is not, we have to use some special
handling to get the operand list right for matching.

llvm-svn: 136406
2011-07-28 21:57:55 +00:00
Jim Grosbach 7f45559e86 Remove obsolete FIXME reference in comment.
llvm-svn: 136400
2011-07-28 21:37:05 +00:00
Jim Grosbach 864b609491 ARM assembly parsing and encoding for BFC and BFI.
Add parsing support that handles converting the lsb+width source into the
odd way we represent the instruction (an inverted bitfield mask).

llvm-svn: 136399
2011-07-28 21:34:26 +00:00
Jim Grosbach 8b3184e540 ARM parsing and encoding for ADR.
The label does not have a '#' prefix. Add parsing and encoding tests.

llvm-svn: 136360
2011-07-28 16:33:54 +00:00
Jim Grosbach 4356636fc0 Update ARM tests for parsing and encoding of WFE, WFI and YIELD.
llvm-svn: 136358
2011-07-28 16:00:41 +00:00
Jim Grosbach 4059137f56 ARM parsing and encoding tests.
UXTAB, UXTAB16, UXTAH, UXTB, UXTB16, and UXTH.

llvm-svn: 136312
2011-07-28 00:37:03 +00:00
Evan Cheng eda1d4f3ba Emit an error is asm parser parsed X86_64 only registers, e.g. %rax, %sil.
This can happen in cases where TableGen generated asm matcher cannot check
whether a register operand is in the right register class. e.g. mem operands.

rdar://8204588

llvm-svn: 136292
2011-07-27 23:22:03 +00:00
Jim Grosbach e37f7dc349 ARM assembly parsing and encoding for USUB16 and USUB8.
llvm-svn: 136289
2011-07-27 23:10:05 +00:00
Jim Grosbach 05f80d3add ARM assembly parsing and encoding for USAX.
llvm-svn: 136288
2011-07-27 23:07:00 +00:00
Kevin Enderby 5ef6c453a6 Fix llvm-mc handing of x86 instructions that take 8-bit unsigned immediates.
llvm-mc gives an "invalid operand" error for instructions that take an unsigned
immediate which have the high bit set such as:
    pblendw $0xc5, %xmm2, %xmm1
llvm-mc treats all x86 immediates as signed values and range checks them.
A small number of x86 instructions use the imm8 field as a set of bits.
This change only changes those instructions and where the high bit is not
ignored.  The others remain unchanged.

llvm-svn: 136287
2011-07-27 23:01:50 +00:00
Jim Grosbach 16dd4adcbe Clean up tabs.
llvm-svn: 136286
2011-07-27 22:35:06 +00:00
Jim Grosbach 57e2d3cb84 ARM assembly parsing and encoding support for USAT and USAT16.
Use range checked immediate operands for instructions. Add tests.

llvm-svn: 136285
2011-07-27 22:34:17 +00:00
Jim Grosbach fea7a44a9b ARM assembly parsing and encoding tests for USAD8 and USADA8.
llvm-svn: 136284
2011-07-27 22:23:02 +00:00
Jim Grosbach 1644409b47 ARM assembly parsing and encoding tests for UQSUB16 and UQSUB8.
llvm-svn: 136282
2011-07-27 22:13:08 +00:00
Jim Grosbach 1a3ddffc1c Fix comment copy/paste-o.
llvm-svn: 136281
2011-07-27 22:11:41 +00:00
Jim Grosbach 84ecab228a ARM assembly parsing and encoding tests for UQASX and UQSAX.
llvm-svn: 136280
2011-07-27 22:09:30 +00:00
Jim Grosbach 928f4175c0 ARM assembly parsing and encoding tests for UQADD16 and UQADD8.
llvm-svn: 136279
2011-07-27 22:08:14 +00:00
Jim Grosbach 39b062bfaa ARM assembly parsing and encoding for UMULL.
Fix parsing of the 's' suffix for the mnemonic. Add tests.

llvm-svn: 136277
2011-07-27 22:01:42 +00:00
Jim Grosbach 0c398b9c7e ARM assembly parsing and encoding for UMLAL.
Fix parsing of the 's' suffix for the mnemonic. Add tests.

llvm-svn: 136274
2011-07-27 21:58:11 +00:00
Jim Grosbach 121c21aba9 ARM assembly parsing and encoding tests for UMAAL.
llvm-svn: 136272
2011-07-27 21:53:42 +00:00
Jim Grosbach 7cfd32a006 ARM assembly parsing and encoding tests for UHSUB16 and UHSUB8.
llvm-svn: 136267
2011-07-27 21:21:59 +00:00
Jim Grosbach 3f45383ef5 ARM assembly parsing and encoding tests for UHADD16, UHADD8 and UHASX.
llvm-svn: 136266
2011-07-27 21:20:45 +00:00
Jim Grosbach 03f56d9de6 ARM parsing and encoding of SBFX and UBFX.
Encode the width operand as it encodes in the instruction, which simplifies
the disassembler and the encoder, by using the imm1_32 operand def. Add a
diagnostic for the context-sensitive constraint that the width must be in
the range [1,32-lsb].

llvm-svn: 136264
2011-07-27 21:09:25 +00:00
Jim Grosbach 36ce7492a6 ARM assembly parsing and encoding tests for UADD16, UADD8 and UASX.
llvm-svn: 136261
2011-07-27 20:43:44 +00:00
Jim Grosbach 542333ea05 ARM assembly parsing and encoding tests for TST instruction.
llvm-svn: 136260
2011-07-27 20:38:58 +00:00
Jim Grosbach f176e1addb ARM assembly parsing and encoding tests for TEQ instruction.
llvm-svn: 136259
2011-07-27 20:37:36 +00:00
Owen Anderson fa9e6d43a0 Refactor the STRT and STRBT instructions to distinguish between the register-addend and immediate-addend versions. Temporarily XFAIL the asm parsing tests for these instructions.
llvm-svn: 136255
2011-07-27 20:29:48 +00:00
Jim Grosbach 833b9d3353 ARM assembly parsing and encoding for extend instructions.
Assembly parser handling for extend instruction rotate operands. Add tests
for the sign extend instructions.

llvm-svn: 136252
2011-07-27 20:15:40 +00:00
Jim Grosbach edaa35ae6f ARM diagnostics for ldrexd/stredx out of order paired register operands.
llvm-svn: 136110
2011-07-26 18:25:39 +00:00
Jim Grosbach 4e895470bd ARM parsing and encoding tests for load/store exclusive instructions.
llvm-svn: 136105
2011-07-26 18:07:21 +00:00
Jim Grosbach 15e8d74231 ARM assembly parsing and encoding for SWP[B] instructions.
llvm-svn: 136098
2011-07-26 17:15:11 +00:00
Jim Grosbach f16378479b ARM parsing and encoding for SVC instruction.
llvm-svn: 136090
2011-07-26 16:24:27 +00:00
Jim Grosbach 2c374c4fb6 ARM assembly parsing and encoding tests for SUB instruction.
llvm-svn: 136089
2011-07-26 15:44:05 +00:00
Jim Grosbach dc45f00cf5 Update ARM STM tests. Fix check: prefix for diagnostic tests.
llvm-svn: 136088
2011-07-26 15:41:22 +00:00
Jim Grosbach 9becc53e32 ARM assembly parsing and encoding for SSAX, SSUB16 and SSUB8.
llvm-svn: 136013
2011-07-25 23:32:14 +00:00
Jim Grosbach 475c6dbef6 ARM assembly parsing and encoding for SSAT16 instruction.
llvm-svn: 136006
2011-07-25 23:09:14 +00:00
Jim Grosbach 3a9cbeed73 ARM assembly parsing and encoding for SSAT instruction.
Fix the Rn register encoding for both SSAT and USAT. Update the parsing of the
shift operand to correctly handle the allowed shift types and immediate ranges
and issue meaningful diagnostics when an illegal value or shift type is
specified. Add aliases to parse an ommitted shift operand (default value of
'lsl #0').

Add tests for diagnostics and proper encoding.

llvm-svn: 135990
2011-07-25 22:20:28 +00:00
Jim Grosbach 38b1ed8ce2 Move some ELF directives into ELF asm parser.
The .local, .hidden, .internal, and .protected are not legal for all supported
file formats (in particular, they're invalid for MachO). Move the parsing for
them into the ELF assembly parser since that's the format they're for.
Similarly, .weak is used by COFF and ELF, but not MachO, so move the parsing
to the COFF and ELF asm parsers. Previously, using any of these directives
on Darwin would result in an assertion failure in the parser; now we get
a diagnostic as we should.

rdar://9827089

llvm-svn: 135921
2011-07-25 17:55:35 +00:00
Jim Grosbach d69b3423a8 Add FIXME
llvm-svn: 135819
2011-07-22 22:15:38 +00:00
Jim Grosbach bc5d709ad9 ARM encoding and assembly parsing tests for SMULWB, SMULWT, SMUSD and SMUSDX.
llvm-svn: 135818
2011-07-22 22:13:00 +00:00
Jim Grosbach e7e1e163db ARM assembly parsing and encoding updates.
Tests for SMULBB, SMLALBT, SMLALTB, SMLALTT, and SMULL. Fix parsing of SMULLS.

llvm-svn: 135817
2011-07-22 22:06:05 +00:00
Jim Grosbach 999afadffa ARM assembly parsing and encoding tests.
Add tests for SMLSD, SMLSDX, SMLSLD, SMLSLDX, SMMLA, SMMLAR, SMMLS, SMMLSR,
SMMUL, SMMULR, SMUAD and SMUADX.

llvm-svn: 135810
2011-07-22 21:34:56 +00:00
Jim Grosbach 5b84e16503 ARM assembly parsing and encoding tests for SMLAWB/SMLAWT.
llvm-svn: 135800
2011-07-22 20:51:24 +00:00
Jim Grosbach e2220221a2 ARM assembly parsing and encoding tests.
Tests for SMLAL, SMLALBB, SMLALBT, SMLALTB, SMLALTT, SMLALD, and SMLALDX
instructions.

llvm-svn: 135798
2011-07-22 20:30:40 +00:00
Jim Grosbach 8dfcc0bb92 ARM assembly parsing and encoding of SMLAL instruction.
Fix parsing of carry-setting variant SMLALS and add tests.

llvm-svn: 135797
2011-07-22 20:18:21 +00:00
Jim Grosbach d7c8c35301 ARM encoding and assembly parsing of SMLAD{X} instructions.
Fix encoding of destination register. Add tests.

llvm-svn: 135796
2011-07-22 20:11:20 +00:00
Jim Grosbach 0b28f0cca2 ARM testcases for assembly parsing and encoding SMLA* instructions.
llvm-svn: 135795
2011-07-22 20:01:34 +00:00
Jim Grosbach d1f8bde10f ARM assembly parsing and encoding for SMC instruction.
llvm-svn: 135782
2011-07-22 18:13:31 +00:00
Jim Grosbach 24ace20824 ARM encoding and assembly parsing tests.
Add tests for SHADD8, SHADD16, SHASX, SHSUB8, and SHSUB16.

llvm-svn: 135780
2011-07-22 18:04:48 +00:00
Jim Grosbach 0a547701a4 ARM assembly parsing and encoding for SETEND instruction.
Add parsing and diagnostics for malformed inputs. Tests for diagnostics and
for correct encodings.

llvm-svn: 135776
2011-07-22 17:44:50 +00:00
Jim Grosbach 4535b9194a ARM assembly parsing and encoding tests for SEL instruction.
llvm-svn: 135772
2011-07-22 16:59:33 +00:00
Jim Grosbach 3354674b48 ARM parsing and encoding tests for SBC instruction.
llvm-svn: 135718
2011-07-21 23:03:59 +00:00
Jim Grosbach 8dbf59d041 ARM testcases for SADD/SASX parsing and encoding.
llvm-svn: 135715
2011-07-21 23:00:49 +00:00
Jim Grosbach 2a0320c877 ARM assembly parsing support for RSC instruction.
Add two-operand instruction aliases. Add parsing and encoding tests for
variants of the instruction.

llvm-svn: 135713
2011-07-21 22:56:30 +00:00
Jim Grosbach 17806e6636 ARM assembly parsing support for RSB instruction.
Add two-operand instruction aliases. Add parsing and encoding tests for
variants of the instruction.

llvm-svn: 135712
2011-07-21 22:37:43 +00:00
Jim Grosbach 2a22c06267 ARM parsing and encoding tests for RBIT, REV, REV16 and REVSH.
llvm-svn: 135710
2011-07-21 22:29:23 +00:00
Jim Grosbach b31e60b7c6 ARM parsing and encodings tests for saturating arithmetic insns.
llvm-svn: 135709
2011-07-21 22:18:28 +00:00
Jim Grosbach 0a8d89242f ARM assembly parsing POP/PUSH mnemonics.
Aliases for LDM/STM. The single-register versions should encode to LDR/STR
with writeback, but we don't (yet) get that correct. Neither does Darwin's
system assembler, though, so that's not a deal-breaker of a limitation.

llvm-svn: 135702
2011-07-21 19:57:11 +00:00
Jim Grosbach b2aa2c4a24 Add tests for ARM PKH assembly parsing.
llvm-svn: 135696
2011-07-21 19:02:03 +00:00
Eli Friedman ae60b6b008 Extend the hack for _GLOBAL_OFFSET_TABLE_ slightly; PR10389.
llvm-svn: 135607
2011-07-20 19:36:11 +00:00
Jim Grosbach 2ea9f25f5f Add parsing/encoding tests for ARM ORR instruction.
llvm-svn: 135602
2011-07-20 18:48:53 +00:00
Jim Grosbach a3fcb962eb Consolidate ARM NOP encoding test.
llvm-svn: 135600
2011-07-20 18:39:38 +00:00
Jim Grosbach 614e90a126 ARM parsing and encoding tests for MVN
llvm-svn: 135599
2011-07-20 18:37:08 +00:00
Jim Grosbach 8d11490771 ARM assembly parsing of MUL instruction.
Correctly handle 's' bit and predication suffices. Add parsing and encoding
tests.

llvm-svn: 135596
2011-07-20 18:20:31 +00:00
Jim Grosbach d25c2cdad7 Tweak ARM assembly parsing and printing of MSR instruction.
The system register spec should be case insensitive. The preferred form for
output with mask values of 4, 8, and 12 references APSR rather than CPSR.
Update and tidy up tests accordingly.

llvm-svn: 135532
2011-07-19 22:45:10 +00:00
Jim Grosbach 97094d8f06 ARM assembly parsing of MRS instruction.
Teach the parser to recognize the APSR and SPSR system register names. Add
and update tests accordingly.

llvm-svn: 135527
2011-07-19 21:59:29 +00:00
Jim Grosbach 7d1e5f11ea ARM assembly parsing for MRC/MRC2/MRRC/MRRC2.
Add range checking to the immediate operands. Update tests accordingly.

llvm-svn: 135521
2011-07-19 20:35:35 +00:00
Jim Grosbach b17d9b12a6 Move mr[r]c[2] ARM tests and tidy up a bit.
llvm-svn: 135517
2011-07-19 20:28:56 +00:00
Jim Grosbach 69721dce67 ARM testcases for MOVT.
llvm-svn: 135516
2011-07-19 20:23:25 +00:00
Jim Grosbach 5cc3b4cd9a ARM assembly parsing for MOV (register).
Correct the handling of the 's' suffix when parsing ARM mode. It's only a
truly separate opcode in Thumb. Add test cases to make sure we handle
the s and condition suffices correctly, including diagnostics.

llvm-svn: 135513
2011-07-19 20:10:31 +00:00
Jim Grosbach 7c09e3c3f3 ARM assembly parsing for MOV (immediate).
Add range checking for the immediate operand and handle the "mov" mnemonic
choosing between encodings based on the value of the immediate. Add tests
for fixups, encoding choice and values, and diagnostic for out of range values.

llvm-svn: 135500
2011-07-19 19:13:28 +00:00
Jim Grosbach 20dd6e9fae Whitespace.
llvm-svn: 135499
2011-07-19 19:02:39 +00:00
Eli Friedman 0318036c4d Make the disassembler able to disassemble a bunch of instructions with names in the TableGen files containing "64" on x86-32. This includes a bunch of x87 instructions, like fld, and a bunch of SSSE3 instructions on MMX registers like pshufb. Part of PR8873.
llvm-svn: 135337
2011-07-16 02:41:28 +00:00
Eli Friedman 3846acc98e PR10370: Make sure we know how to relax push correctly on x86-64.
llvm-svn: 135303
2011-07-15 21:28:39 +00:00
Owen Anderson 454e1c7abb Remove VMOVDneon and VMOVQ, which are just aliases for VORR. This continues to simplify the path towards an auto-generated disassembler.
llvm-svn: 135290
2011-07-15 18:46:47 +00:00
Jim Grosbach 03a8a16f32 ARM diagnostic when 's' suffix on mnemonic that can't set flags.
For example, "mlss r0, r1, r2, r3".

The MLS instruction does not have a flag-setting variant.

llvm-svn: 135203
2011-07-14 22:04:21 +00:00
Jim Grosbach 51849920f1 Add some testcases for ARM MLA/MLS instructions.
llvm-svn: 135196
2011-07-14 21:43:05 +00:00
Jim Grosbach 26e7449443 ARM MCRR/MCRR2 immediate operand range checking.
llvm-svn: 135192
2011-07-14 21:26:42 +00:00
Jim Grosbach d37d2025e9 ARM MCR/MCR2 assembly parsing operand constraints.
The immediate operands are restricted to 0-7. Enforce that when parsing
assembly.

llvm-svn: 135189
2011-07-14 21:19:17 +00:00
Jim Grosbach e336a290a6 Enable some tests we now handle correctly.
llvm-svn: 135185
2011-07-14 21:02:23 +00:00
Jim Grosbach 2f9aeeef3b Update ARM Assembly of LDM/STM.
ldm/stm are the cannonical spellings for ldmia/stmia, so use them as such.
Update the parsing/encoding tests accordingly.

llvm-svn: 135168
2011-07-14 18:35:38 +00:00
Jim Grosbach d616cf3497 ARM ISB assembly parsing tests.
llvm-svn: 135158
2011-07-14 18:02:25 +00:00
Jim Grosbach b218202586 ARM ISB instruction assembly parsing.
The ISB instruction takes an optional operand, just like DMB/DSB. Typically
only 'sy' is meaningful.

llvm-svn: 135156
2011-07-14 18:00:31 +00:00
Jim Grosbach e6f8b1fac6 ARM tests for EOR instruction parsing and encoding.
llvm-svn: 135119
2011-07-14 00:22:21 +00:00
Jim Grosbach f34e35da1c Remove duplicate tests.
llvm-svn: 135117
2011-07-14 00:19:19 +00:00
Jim Grosbach a0958d7abf ARM Assembler support for DSB instruction.
Add instalias for default 'sy' option. Add tests.

llvm-svn: 135116
2011-07-14 00:18:13 +00:00
Jim Grosbach 44c3f08e85 ARM Assembler support for DMB instruction.
Flesh out the options supported for the instruction. Shuffle tests a bit and
add entries for the rest of the options. Add an alias to handle the default
operand of "sy".

llvm-svn: 135109
2011-07-13 23:40:38 +00:00
Jim Grosbach 507ba77465 ARM Assembler support for DBG instruction.
Add range checking and testing for parsing and encoding of DBG instruction.

llvm-svn: 135102
2011-07-13 22:59:38 +00:00
Jim Grosbach 307de01867 ARM parsing and encoding tests for CMN/CMP.
llvm-svn: 135098
2011-07-13 22:26:58 +00:00
Jim Grosbach 9559d360e5 Shuffle ARM assembly tests a bit.
llvm-svn: 135095
2011-07-13 22:19:10 +00:00
Jim Grosbach 31756c2283 Range checking for CDP[2] immediates.
llvm-svn: 135092
2011-07-13 22:01:08 +00:00
Jim Grosbach adb29b6dbb Fix predicates for Thumb co-processor instructions.
They're all Thumb2 only, not just some of them. More refactoring cleanup
coming.

llvm-svn: 135081
2011-07-13 21:14:23 +00:00
Jim Grosbach ec8989115d Testcases for ARM assembly BX/BXJ instructions.
llvm-svn: 135078
2011-07-13 20:25:46 +00:00
Jim Grosbach 2371a3f14a Testcases for ARM assembly BLX/BL instructions.
llvm-svn: 135072
2011-07-13 20:11:04 +00:00
Jim Grosbach 975b641ee8 Range checking for 16-bit immediates in ARM assembly.
llvm-svn: 135071
2011-07-13 20:10:10 +00:00
Jim Grosbach c845e55374 Add tests for ARM parsing of 'BKPT' instruction.
llvm-svn: 135063
2011-07-13 19:17:36 +00:00
Jim Grosbach 43b45e2790 Fix copy-pasto.
llvm-svn: 135062
2011-07-13 19:16:30 +00:00
Jim Grosbach 4f0f2ac757 Add tests for ARM parsing of 'BIC' instruction.
llvm-svn: 135061
2011-07-13 19:12:32 +00:00
Jim Grosbach 6cfb1573bf Add some FIXMEs.
Keeping the instructions in alphabetical order, just like in the ARM ARM.
Adding FIXMEs for skipped instructions when adding tests out of order.

llvm-svn: 135060
2011-07-13 19:10:23 +00:00
Jim Grosbach b7cdd8772c Add tests for ARM parsing of 'AND' instruction.
llvm-svn: 135056
2011-07-13 18:55:14 +00:00
Jim Grosbach bb24c595f7 Improve ARM assembly parsing diagnostics a bit.
Catch potential cascading errors on a malformed so_reg operand and bail after
the first error.

Add some tests for the diagnostics we do want.

llvm-svn: 135055
2011-07-13 18:49:30 +00:00
Jim Grosbach 61a9f2af9e Add tests for ARM parsing of 'ADD' instruction
llvm-svn: 135053
2011-07-13 18:12:46 +00:00
Jim Grosbach 04afb071e1 Destination register operand is optional for ADC and SBC ARM.
llvm-svn: 135052
2011-07-13 17:57:17 +00:00
Jim Grosbach 7dcd1354f1 Flesh out ARM Parser support for shifted-register operands.
Now works for parsing register shifted register and register shifted
immediate arithmetic instructions, including the 'rrx' rotate with extend.

llvm-svn: 135049
2011-07-13 17:50:29 +00:00
Jim Grosbach 992a2856f5 Add check for predicate w/o S bit.
llvm-svn: 134987
2011-07-12 16:25:04 +00:00
Jim Grosbach a9a3f0a414 Fix recognition of ARM 'adcs' mnemonic.
The 'CS' is not a predication suffix in this case.

llvm-svn: 134903
2011-07-11 17:09:57 +00:00
Jim Grosbach 581da64241 Simplify printing of ARM shifted immediates.
Print shifted immediate values directly rather than as a payload+shifter
value pair. This makes for more readable output assembly code, simplifies
the instruction printer, and is consistent with how Thumb immediates are
 displayed.

llvm-svn: 134902
2011-07-11 16:48:36 +00:00
Evan Cheng c5e6d2f519 - Eliminate MCCodeEmitter's dependency on TargetMachine. It now uses MCInstrInfo
and MCSubtargetInfo.
- Added methods to update subtarget features (used when targets automatically
  detect subtarget features or switch modes).
- Teach X86Subtarget to update MCSubtargetInfo features bits since the
  MCSubtargetInfo layer can be shared with other modules.
- These fixes .code 16 / .code 32 support since mode switch is updated in
  MCSubtargetInfo so MC code emitter can do the right thing.

llvm-svn: 134884
2011-07-11 03:57:24 +00:00
Evan Cheng 284b467d9f Add support for ARM / Thumb mode switching with .code 16 and .code 32.
llvm-svn: 134760
2011-07-08 22:36:29 +00:00
Evan Cheng 8b2bda09a5 Change some ARM subtarget features to be single bit yes/no in order to sink them down to MC layer. Also fix tests.
llvm-svn: 134590
2011-07-07 03:55:05 +00:00
Kevin Enderby 6aac575c9f Update MC/ELF/relocation.s with change to X86 PUSH64i8 in r134501.
llvm-svn: 134511
2011-07-06 17:55:20 +00:00
Kevin Enderby 6ee1d2bd78 Changed the X86 PUSH64i8 record to use the i64i8imm ParserMatchClass so that a
push with a small constant produces a 2-byte push.

llvm-svn: 134501
2011-07-06 17:23:46 +00:00
Eli Friedman 415412e82f Add assembler/disassembler support for non-AVX pclmulqdq. While I'm here, use proper aliases for the pclmullqlqdq and friends. PR10269.
llvm-svn: 134424
2011-07-05 18:21:20 +00:00
Joerg Sonnenberger 91e5662075 Recognize the xstorerng alias for VIA PadLock's xstore instruction.
llvm-svn: 134126
2011-06-30 01:38:03 +00:00
Jim Grosbach 76346c3bf7 Asm parser range checking on .<size> <value> directives.
For example, ".byte 256" would previously assert() when emitting an object
file. Now it generates a diagnostic that the literal value is out of range.

rdar://9686950

llvm-svn: 134069
2011-06-29 16:05:14 +00:00
Jim Grosbach 16896325a6 ARM Thumb2 asm syntax optional destination operand for binary operators.
When the destination operand is the same as the first source register
operand for arithmetic instructions, the destination operand may be omitted.

For example, the following two instructions are equivalent:
and r1, #ff
and r1, r1, #ff

rdar://9672867

llvm-svn: 133973
2011-06-28 00:19:13 +00:00
Jim Grosbach a6f7a1efcc ARM Assembly support for Thumb mov-immediate.
Correctly parse the forms of the Thumb mov-immediate instruction:
  1. 8-bit immediate 0-255.
  2. 12-bit shifted-immediate.

The 16-bit immediate "movw" form is also legal with just a "mov" mnemonic,
but is not yet supported. More parser logic necessary there due to fixups.

llvm-svn: 133966
2011-06-27 23:54:06 +00:00
Jim Grosbach 89bbfc434a ARM assembler support for ldmfd/stmfd mnemonics.
llvm-svn: 133936
2011-06-27 20:32:18 +00:00
Jim Grosbach 29882a75eb ARM assembler support for vpush/vpop.
Add aliases for the vpush/vpop mnemonics to the VFP load/store multiple
writeback instructions w/ SP as the base pointer.

rdar://9683231

llvm-svn: 133932
2011-06-27 20:00:07 +00:00
Jim Grosbach b5ee311602 ARM Assembly syntax support for arithmetic implied dest operand.
When the destination operand is the same as the first source register
operand for arithmetic instructions, the destination operand may be omitted.

For example, the following two instructions are equivalent:
  sub r2, r2, #6
  sub r2, #6

rdar://9682597

llvm-svn: 133925
2011-06-27 19:09:15 +00:00
Jim Grosbach 8fbb89ffa4 Move ARM-specific test to ARM directory.
Hopefully make the x86-target-only Windows bots happy.

llvm-svn: 133856
2011-06-25 01:53:17 +00:00
Jim Grosbach 045e26166a Testcase for r133818
llvm-svn: 133823
2011-06-24 20:59:01 +00:00
Eli Friedman 5c958bb528 Add support for movntil/movntiq mnemonics. Reported on llvmdev.
llvm-svn: 133759
2011-06-23 21:07:47 +00:00
Nick Lewycky ef9c497e4c Add support for assembling "movq" when it's correct to do so, while continuing
to emit "movd" across the board to continue supporting a Darwin assembler bug.
This is the reincarnation of r133452.

llvm-svn: 133565
2011-06-21 22:45:41 +00:00
Bob Wilson 646dd0f4d1 Revert r133452: "Emit movq for 64-bit register to XMM register moves..."
This is breaking compiler-rt and llvm-gcc builds on MacOSX when not using
the integrated assembler.

llvm-svn: 133524
2011-06-21 17:35:13 +00:00
Nick Lewycky c7df192279 Emit movq for 64-bit register to XMM register moves, but continue to accept
movd when assembling.

llvm-svn: 133452
2011-06-20 18:33:26 +00:00
Hans Wennborg 3fefc65c1d MC: Allow .common as alias for .comm assembler directive. PR10116.
llvm-svn: 133349
2011-06-18 13:51:54 +00:00
Bill Wendling 36c0c6db3f Improve the heuristic to emit the alias if the number of hard-coded registers
are also greater than the alias.

llvm-svn: 133038
2011-06-15 04:31:19 +00:00
Bill Wendling e712449688 Heuristic: If the number of operands in the alias are more than the number of
operands in the aliasee, don't print the alias.

llvm-svn: 132963
2011-06-14 03:17:20 +00:00
Roman Divacky a81247af34 Test that ".byte 1, 2, 3, 4" does the right thing.
Requested by nbjoerg!

llvm-svn: 132716
2011-06-07 17:32:17 +00:00
Rafael Espindola 1134ab23df Basic support for macros with explicit arguments.
We still don't handle

* default values
* :req
* :vararg
* \()

llvm-svn: 132656
2011-06-05 02:43:45 +00:00
Nick Lewycky 34fa1684e7 Add support for @GOTPTOFF in i386 mode.
llvm-svn: 132643
2011-06-04 17:38:07 +00:00
Bruno Cardoso Lopes 394f516d16 Fix ssat and ssat16 encodings for ARM and Thumb. The bit position value
must be encoded decremented by one. Only add encoding tests for ssat16
because ssat can't be parsed yet.

llvm-svn: 132324
2011-05-31 03:33:27 +00:00
Rafael Espindola 2e84c82750 Use %rbp on a 64 bit test.
llvm-svn: 132279
2011-05-29 04:04:50 +00:00
Benjamin Kramer 41112a1703 Move ARM specific test into the ARM subdir.
llvm-svn: 132255
2011-05-28 11:01:30 +00:00
Bruno Cardoso Lopes 787dfadc7c ARM asm parser wasn't able to parse a "mov" instruction while in Thumb
mode (only the "mov.w" variant). Now, when parsing "mov" in thumb mode,
default to the Thumb 1 versions/encodings.

llvm-svn: 132233
2011-05-27 23:46:09 +00:00
Charles Davis 041ec4aada Add the suffix to the Win64 EH data sections' names if given. Add a test for
this. XFAIL'd, because the COFF AsmParser can't handle .section yet.

llvm-svn: 132220
2011-05-27 21:38:47 +00:00
Charles Davis ea5dc3a67b Assorted fixes for Win64 EH unwind info emission:
- Flip order of bitfields. This gets our output matching GAS.
- Handle case where the end of the prolog wasn't specified.
- If the resulting unwind info struct is less than 8 bytes, pad to 8 bytes.

Add a test for the latter two.

llvm-svn: 132188
2011-05-27 15:10:25 +00:00
Charles Davis 43a421e3d5 Add a test for Win64 EH unwind information emission.
llvm-svn: 132180
2011-05-27 03:54:43 +00:00
Charles Davis 567a1ad7c5 Add a test for the chained directives that I forgot last time.
llvm-svn: 132110
2011-05-26 05:17:43 +00:00
Charles Davis 006e1c39d0 Test .seh_startchained and .seh_endchained parsing.
Rework how the MCWin64EHUnwindInfo instances are stored. Fix issues with
chained unwind areas exposed by the test that were related to this.

The ChainedParent field had the wrong address, because when the chained unwind
info was added, the addresses shifted around. Now we store the pointers to the
structures, which are now allocated from the MC heap.

llvm-svn: 132106
2011-05-26 02:45:47 +00:00
Charles Davis 2f6ecea19d Add tests for .seh_setframe and .seh_handlerdata parsing. Fix issues with
them.

I had to add a special SwitchSectionNoChange method to MCStreamer just for
.seh_handlerdata. If this isn't OK, please let me know, and I'll find some
other way to fix .seh_handlerdata streaming.

llvm-svn: 132084
2011-05-25 21:43:45 +00:00
Charles Davis 828b00c0e1 Add tests for .seh_savereg and .seh_savexmm parsing. Once again, fix the
buggy methods that parse these directives.

llvm-svn: 132045
2011-05-25 04:51:25 +00:00
Charles Davis b0c4f39173 Add a test for .seh_pushframe parsing. Fix the bug exposed by it (and another
one I found by inspection).

llvm-svn: 132037
2011-05-25 04:08:15 +00:00
Charles Davis fc1e7ce850 Add a test for the .seh_handler directive. Fix problems with the parsing
method exposed by the test. While we're at it, simplify the .seh_proc
parsing method.

llvm-svn: 132028
2011-05-25 01:33:42 +00:00
Bruno Cardoso Lopes 5445213a25 Fix PR9762
Enable the parsing of the operand "cpsr_all" for the ARM msr instruction

llvm-svn: 132026
2011-05-25 00:35:03 +00:00
Charles Davis f4ce8fde18 Test basic SEH directive-parsing functionality. Fix a latent bug exposed by
this test.

llvm-svn: 132004
2011-05-24 21:22:53 +00:00
Chris Lattner af5fecb747 add test from PR9164
llvm-svn: 131876
2011-05-22 22:35:34 +00:00
Chris Lattner 819278891a testcase for PR9378
llvm-svn: 131875
2011-05-22 22:32:53 +00:00
Johnny Chen a0c9c75df2 Fix Bug 9386 - ARM disassembler failed to disassemble conditional bx
Modified the patch to .td file supplied by Jyun-Yan You.  Add a test case and
modified ARMDisassemblerCore.cpp a little bit.

llvm-svn: 131859
2011-05-22 17:51:04 +00:00
Rafael Espindola 652bfdb1ab adds some attributes to attribute section when cpu is "xscale"
(this is what used in Android NDK, when architecture is ARMv5)

patch by Koan-Sin Tan

llvm-svn: 131751
2011-05-20 20:10:34 +00:00
Rafael Espindola 1866808384 fixes target address tBL and tBLX and sets relocation type
of tBL/tBLX to R_ARM_THM_CALL (ARM ELF 4.7.1.6)

Patch by koan-sin tan.

llvm-svn: 131748
2011-05-20 20:01:01 +00:00
Jason W Kim d0c937d4b2 This fixes one divergence between LLVM and binutils for ARM in the
text section.

Assume the following bit of annotated assembly:

.section	.data.rel.ro,"aw",%progbits
.align	2
.LAlpha:
.long	startval(GOTOFF)

.text
.align	2
.type	main,%function
.align	4

main: ;;; assume "main" starts at offset 0x20
0x0	push	{r11, lr}
0x4	movw	r0, :lower16:(.LAlpha-(.LBeta+8))
;;; ==> (.AddrOf(.LAlpha) - ((.AddrOf(.LBeta) - .AddrOf(".")) + 8)
;;; ==> (??? - ((16-4) + 8) = -20
0x8	movt	r0, :upper16:(.LAlpha-(.LBeta+8))
;;; ==> (.AddrOf(.LAlpha) - ((.AddrOf(.LBeta) - .AddrOf(".")) + 8)
;;; ==> (??? - ((16-8) + 8) = -16
0xc	... blah

.LBeta:
0x10	add	r0, pc, r0
0x14	... blah

.LGamma:
0x18	add	r1, pc, r1

Above snippet results in the following relocs in the .o file for the
first pair of movw/movt instructions

00000024 R_ARM_MOVW_PREL_NC .LAlpha
00000028 R_ARM_MOVT_PREL .LAlpha

And the encoded instructions in the .o file for main: must be

00000020 <main>:
20:	e92d4800 push	{fp, lr}
24:	e30f0fec movw	r0, #65516	; 0xffec i.e. -20
28:	e34f0ff0 movt	r0, #65520	; 0xfff0 i.e. -16

However, llc (prior to this commit) generates the following sequence

00000020 <main>:
20:	e92d4800 push	{fp, lr}
24:	e30f0fec movw	r0, #65516	; 0xffec - i.e. -20
28:	e34f0fff movt	r0, #65535	; 0xffff - i.e. -1

What has to happen in the ArmAsmBackend is that if the relocation is PC
relative, the 16 bits encoded as part of movw and movt must be both addends,
not addresses. It makes sense to encode addresses by right shifting the value
by 16, but the result is incorrect for PIC.
i.e., the right shift by 16 for movt is ONLY valid for the NON-PCRel case.

This change agrees with what GNU as does, and makes the PIC code run.

MC/ARM/elf-movt.s covers this case.

llvm-svn: 131674
2011-05-19 20:55:25 +00:00
Rafael Espindola 0fc5e89c82 ADD64ri32 sign extends its argument, so we need to use a R_X86_64_32S.
Fixes PR9934.

We really need to start tblgening the relocation info :-(

llvm-svn: 131669
2011-05-19 20:32:34 +00:00
Johnny Chen 071634612d Disassembly of tBcc was wrongly adding 4 to the SignExtend'ed imm8:'0' immediate operand.
llvm-svn: 131565
2011-05-18 20:32:41 +00:00
Rafael Espindola e90c1cb221 sets bit 0 of the function address of thumb function in .symtab
("T is 1 if the target symbol S has type STT_FUNC and the
symbol addresses a Thumb instruction ;it is 0 otherwise."
from "ELF for the ARM Architecture" 4.7.1.2)

Patch by Koan-Sin Tan!

llvm-svn: 131406
2011-05-16 16:17:21 +00:00
Owen Anderson b745623b71 Fix encoding of Thumb BLX register instructions. Patch by Koan-Sin Tan.
llvm-svn: 131189
2011-05-11 17:00:48 +00:00
Rafael Espindola 99f6735532 On MachO, unlike ELF, there should be no relocation to produce the CIE pointer.
llvm-svn: 131149
2011-05-10 20:59:42 +00:00
Rafael Espindola 27390b4a0e In a debug_frame the cfi offset is to the start of the debug_frame section!
llvm-svn: 131129
2011-05-10 15:20:23 +00:00
Rafael Espindola 1ecb12fc57 Add support for producing .deubg_frame sections.
llvm-svn: 131121
2011-05-10 03:54:12 +00:00
Jakob Stoklund Olesen 067ba3c23c Explicitly request -join-physregs for some tests that depend on it.
llvm-svn: 130855
2011-05-04 19:01:59 +00:00
Eric Christopher 438dc7e1a7 Remove some random comments that snuck in from somewhere.
llvm-svn: 130812
2011-05-04 00:48:02 +00:00
Eric Christopher d2aa241378 xmm0 is an implicit parameter in this and so shouldn't be in the
string template.

Fixes rdar://8493866

llvm-svn: 130747
2011-05-03 01:28:32 +00:00
Daniel Dunbar 72032861c6 MCAsmLayout: Add support for computing the symbol offset of variables. Not
currently used, because variables don't get reported as being "defined".

llvm-svn: 130524
2011-04-29 18:20:20 +00:00
Daniel Dunbar bea7b93c88 MC: Change variable symbols to be recognized as defined, by assigning their sections based on FindAssociatedSection().
llvm-svn: 130523
2011-04-29 18:20:17 +00:00
Johnny Chen c3c7001844 Add tests for A8.6.110 NOP.
llvm-svn: 130345
2011-04-27 23:29:21 +00:00
Chandler Carruth 9b73c8e293 Remove some hard coded CR-LFs. Some of these were the entire files, one of
these was just one line of a file. Explicitly set the eol-style property on the
files to try and ensure this fix stays.

llvm-svn: 130125
2011-04-25 07:11:23 +00:00
Johnny Chen 57c892860e Disassembly of A8.6.59 LDR (literal) Encoding T1 (16-bit thumb instruction) should
print out ldr, not ldr.n.

rdar://problem/9267772

llvm-svn: 130008
2011-04-22 19:12:43 +00:00
Rafael Espindola c3dc486752 Fix relative relocations. This is sufficient for running the rust testsuite with
MC :-)

llvm-svn: 129923
2011-04-21 18:36:50 +00:00
Rafael Espindola ed16477cb9 Behave like gnu as when a relocation crosses sections.
llvm-svn: 129850
2011-04-20 14:01:45 +00:00
Johnny Chen 48592ee5af Thumb2 BFC was insufficiently encoded.
rdar://problem/9292717

llvm-svn: 129619
2011-04-15 22:52:15 +00:00
Johnny Chen 761e1e3512 A8.6.315 VLD3 (single 3-element structure to all lanes)
The a bit must be encoded as 0.

rdar://problem/9292625

llvm-svn: 129618
2011-04-15 22:49:08 +00:00
Joerg Sonnenberger 375249a417 Add encoding tests for flds/filds
llvm-svn: 129589
2011-04-15 19:25:31 +00:00
Chris Lattner 0ab5e2cded Fix a ton of comment typos found by codespell. Patch by
Luis Felipe Strano Moraes!

llvm-svn: 129558
2011-04-15 05:18:47 +00:00
Johnny Chen 421316178e The ARM disassembler did not handle the alignment correctly for VLD*DUP* instructions
(single element or n-element structure to all lanes).

llvm-svn: 129550
2011-04-15 00:10:45 +00:00
Johnny Chen 4251b151b1 Add sanity checkings for Thumb2 Load/Store Register Exclusive family of operations.
llvm-svn: 129531
2011-04-14 19:13:28 +00:00
Bill Wendling 410ec4aad1 As Dan pointed out, movzbl, movsbl, and friends are nicer than their alias
(movzx/movsx) because they give more information. Revert that part of the patch.

llvm-svn: 129498
2011-04-14 01:46:37 +00:00
Bill Wendling 7e07d6fb69 Have the X86 back-end emit the alias instead of what's being aliased. In most
cases, it's much nicer and more informative reading the alias.

llvm-svn: 129497
2011-04-14 01:11:51 +00:00
Johnny Chen d0fb04f437 Thumb disassembler did not handle tBRIND (indirect branch) properly.
rdar://problem/9280370

llvm-svn: 129480
2011-04-13 21:59:01 +00:00
Johnny Chen b6a37bff21 Check for unallocated instruction encodings when disassembling Thumb Branch instructions (tBcc and t2Bcc).
rdar://problem/9280470

llvm-svn: 129471
2011-04-13 21:35:49 +00:00
Johnny Chen ffa6378fd6 The LDR*T/STR*T (unpriviledged load/store) operations don't take SP or PC as Rt.
rdar://problem/9279440

llvm-svn: 129469
2011-04-13 21:04:32 +00:00
Johnny Chen 70591cbc60 Check the corner cases for t2LDRSHi12 correctly and mark invalid encodings as such.
rdar://problem/9276651

llvm-svn: 129462
2011-04-13 19:46:05 +00:00
Johnny Chen 0d306a7840 Fix a bug where for t2MOVCCi disassembly, the TIED_TO register operand was not properly handled.
rdar://problem/9276427

llvm-svn: 129456
2011-04-13 17:51:02 +00:00
Johnny Chen 3c2f74c9f3 Add sanity check for Ld/St Dual forms of Thumb2 instructions.
rdar://problem/9273947

llvm-svn: 129411
2011-04-12 23:31:00 +00:00
Johnny Chen 960eef3db3 The Thumb2 RFE instructions need to have their second halfword fully specified.
In addition, the base register is not rGPR, but GPR with th exception that:

    if n == 15 then UNPREDICTABLE

rdar://problem/9273836

llvm-svn: 129391
2011-04-12 21:41:51 +00:00
Johnny Chen 01637b9acb Add bad register checks for Thumb2 Ld/St instructions.
rdar://problem/9269047

llvm-svn: 129387
2011-04-12 21:17:51 +00:00
Johnny Chen ab86a519f8 The Thumb2 Ld, St, and Preload instructions with the i12 forms should have its Inst{23}
be specified as '1' (add = TRUE).

Also add a utility function for Thumb2.

llvm-svn: 129377
2011-04-12 18:48:00 +00:00
Johnny Chen d0e2be39ea Print out a debug message when the reglist fails the sanity check for Thumb Ld/St Multiple.
llvm-svn: 129365
2011-04-12 17:09:04 +00:00
Rafael Espindola 1ec0f46169 Fix the case of a .cfi_rel_offset before any .cfi_def_cfa_offset.
llvm-svn: 129362
2011-04-12 16:12:03 +00:00
Rafael Espindola 2e1c9d2188 Implement .cfi_same_value.
llvm-svn: 129361
2011-04-12 15:31:05 +00:00
Johnny Chen f130b7f0f5 Add one test case (svc).
llvm-svn: 129327
2011-04-12 00:21:48 +00:00
Eric Christopher ffc0e1f6e6 Match case for invalid constant error messages and add a new
test for invalid hexadecimals.

llvm-svn: 129326
2011-04-12 00:18:03 +00:00
Johnny Chen 672ef14a62 A8.6.16 B
Encoding T1 (tBcc)
if cond == '1110' then UNDEFINED;

rdar://problem/9268681

llvm-svn: 129325
2011-04-12 00:14:49 +00:00
Eric Christopher 0a68959604 Test for invalid constant expr addition - bad octal constant.
llvm-svn: 129323
2011-04-12 00:03:38 +00:00
Johnny Chen dc8bf9ec08 Thumb disassembler was erroneously rejecting "blx sp" instruction.
rdar://problem/9267838

llvm-svn: 129320
2011-04-11 23:33:30 +00:00
Rafael Espindola 82065cb6cf Implement cfi_rel_offset
llvm-svn: 129306
2011-04-11 21:49:50 +00:00
Rafael Espindola 4f46abc15e Add test for previous commit.
llvm-svn: 129304
2011-04-11 21:41:34 +00:00
Johnny Chen f79d5365de Fix the bug where the immediate shift amount for Thumb logical shift instructions are incorrectly disassembled.
rdar://problem/9266265

llvm-svn: 129298
2011-04-11 21:14:35 +00:00
Johnny Chen 66fab75920 Check invalid register encodings for LdFrm/StFrm ARM instructions and flag them as
invalid instructions.

llvm-svn: 129286
2011-04-11 18:34:12 +00:00
Chris Lattner fc4fe00a65 fix rdar://8735979 - "int 3" doesn't match to "int3". Unfortunately,
InstAlias doesn't allow matching immediate operands, so we have to write
C++ code to do this.

llvm-svn: 129223
2011-04-09 19:41:05 +00:00
Benjamin Kramer 2b6c96b43d Don't store Twine temporaries, it's not safe.
And don't append the name over and over again in the loop.

llvm-svn: 129210
2011-04-09 11:26:27 +00:00
Johnny Chen a9570f77d5 Hanlde the checking of bad regs for SMMLAR properly, instead of asserting.
PR9650
rdar://problem/9257565

llvm-svn: 129147
2011-04-08 19:41:22 +00:00
Johnny Chen 875e0e4626 Sanity check the option operand for DMB/DSB.
PR9648
rdar://problem/9257634

llvm-svn: 129146
2011-04-08 19:18:07 +00:00
Johnny Chen 74c74ba81c MOVi16 and MOVTi16 does not allow pc as the dest register, while MOVi allows it.
Add tests for that.

llvm-svn: 129137
2011-04-08 17:29:58 +00:00
Johnny Chen 7e51b4640f Add sanity checking for bad register specifier(s) for the DPFrm instructions.
Add more test cases to exercise the logical branches related to the above change.

llvm-svn: 129117
2011-04-08 00:29:09 +00:00
Rafael Espindola 9a1a34b105 Update tests
llvm-svn: 129116
2011-04-07 23:51:25 +00:00
Johnny Chen 165a07adf9 Add a VEXT test.
llvm-svn: 129111
2011-04-07 22:04:01 +00:00
Rafael Espindola 88bc341061 Add support for .skip.
Patch by Roman Divacky.
Fixes PR9361.

llvm-svn: 129106
2011-04-07 20:26:23 +00:00
Johnny Chen 04efb8f6ce Add sanity checking for invalid register encodings for signed/unsigned extend instructions.
Add some test cases.

llvm-svn: 129098
2011-04-07 19:28:58 +00:00
Johnny Chen 07606661f9 Add sanity checking for invalid register encodings for saturating instructions.
llvm-svn: 129096
2011-04-07 19:02:08 +00:00
Johnny Chen 194a2267ad Add some more comments about checkings of invalid register numbers.
And two test cases.

llvm-svn: 129090
2011-04-07 18:33:19 +00:00
Johnny Chen 313ec7953a Sanity check MSRi for invalid mask values and reject it as invalid.
rdar://problem/9246844

llvm-svn: 129050
2011-04-07 01:37:34 +00:00
Johnny Chen c0e86fb965 The ARM disassembler was not recognizing USADA8 instruction. Need to add checking for register values
for USAD8 and USADA8.

rdar://problem/9247060

llvm-svn: 129047
2011-04-07 01:05:52 +00:00
Johnny Chen d4cced54b3 Should also check SMLAD for invalid register values.
rdar://problem/9246650

llvm-svn: 129042
2011-04-07 00:50:25 +00:00
Johnny Chen bd9a4f8d07 A8.6.393
The ARM disassembler should reject invalid (type, align) encodings as invalid instructions.

So, instead of:
Opcode=1641 Name=VST2b32_UPD Format=ARM_FORMAT_NLdSt(30)
 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10  9  8  7  6  5  4  3  2  1  0 
-------------------------------------------------------------------------------------------------
| 1: 1: 1: 1| 0: 1: 0: 0| 0: 0: 0: 0| 0: 0: 1: 1| 0: 0: 0: 0| 1: 0: 0: 1| 1: 0: 1: 1| 0: 0: 1: 1|
-------------------------------------------------------------------------------------------------

	vst2.32	{d0, d2}, [r3, :256], r3

we now have:
Opcode=1641 Name=VST2b32_UPD Format=ARM_FORMAT_NLdSt(30)
 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10  9  8  7  6  5  4  3  2  1  0 
-------------------------------------------------------------------------------------------------
| 1: 1: 1: 1| 0: 1: 0: 0| 0: 0: 0: 0| 0: 0: 1: 1| 0: 0: 0: 0| 1: 0: 0: 1| 1: 0: 1: 1| 0: 0: 1: 1|
-------------------------------------------------------------------------------------------------

mc-input.txt:1:1: warning: invalid instruction encoding
0xb3 0x9 0x3 0xf4
^

llvm-svn: 129033
2011-04-06 22:14:48 +00:00
Johnny Chen 2ac486e387 A8.6.92 MCR (Encoding A1): if coproc == '101x' then SEE "Advanced SIMD and VFP"
Since these "Advanced SIMD and VFP" instructions have more specfic encoding bits
specified, if coproc == 10 or 11, we should reject the insn as invalid.

rdar://problem/9239922
rdar://problem/9239596

llvm-svn: 129027
2011-04-06 20:49:02 +00:00
Johnny Chen 8bca174f48 Fix a bug in the disassembly of VGETLNs8 where the lane index was wrong.
Also set the encoding bits (for A8.6.303, A8.6.328, A8.6.329) Inst{3-0} = 0b0000,
in class NVLaneOp.

rdar://problem/9240648

llvm-svn: 129015
2011-04-06 18:27:46 +00:00
Johnny Chen 0ec0e98a6a Add a missing opcode (SMLSLDX) to BadRegsMulFrm() function.
Add more complete sanity check for LdStFrm instructions where if IBit (Inst{25})
is 1, Inst{4} should be 0.  Otherwise, we should reject the insn as invalid.

rdar://problem/9239347
rdar://problem/9239467

llvm-svn: 128977
2011-04-06 01:18:32 +00:00
Johnny Chen f6e327c6a3 Fix a typo in the handling of PKHTB opcode, plus add sanity check for illegal register
encodings for DisassembleArithMiscFrm().

rdar://problem/9238659

llvm-svn: 128958
2011-04-05 23:28:00 +00:00
Johnny Chen c3656d29f6 A7.3 register encoding
Qd -> bit[12] == 0
    Qn -> bit[16] == 0
    Qm -> bit[0]  == 0

If one of these bits is 1, the instruction is UNDEFINED.

rdar://problem/9238399
rdar://problem/9238445

llvm-svn: 128949
2011-04-05 22:57:07 +00:00
Johnny Chen 9da60e016b ARM disassembler was erroneously accepting an invalid RSC instruction.
Added checks for regs which should not be 15.

rdar://problem/9237734

llvm-svn: 128945
2011-04-05 22:18:07 +00:00
Johnny Chen 25883487a1 ARM disassembler was erroneously accepting an invalid LSL instruction.
For register-controlled shifts, we should check that the encoding constraint
Inst{7} = 0 and Inst{4} = 1 is satisfied.

rdar://problem/9237693

llvm-svn: 128941
2011-04-05 21:49:44 +00:00
Johnny Chen e9c644d4a0 The r128085 checkin modified the operand ordering for MRC/MRC2 instructions.
Modify DisassembleCoprocessor() of ARMDisassemblerCore.cpp to react to the change.

rdar://problem/9236873

llvm-svn: 128922
2011-04-05 20:32:23 +00:00
Johnny Chen 151582492d ARM disassembler should flag (rGPRRegClassID, r13|r15) as an error.
llvm-svn: 128913
2011-04-05 19:42:11 +00:00
Johnny Chen 56c15c64b0 LDRD now prints out two dst registers.
llvm-svn: 128909
2011-04-05 18:53:14 +00:00
Johnny Chen 33d3a9fadc Constants with multiple encodings (ARM):
An alternative syntax is available for a modified immediate constant that permits the programmer to specify
the encoding directly. In this syntax, #<const> is instead written as #<byte>,#<rot>, where:

    <byte> is the numeric value of abcdefgh, in the range 0-255
    <rot> is twice the numeric value of rotation, an even number in the range 0-30.

llvm-svn: 128897
2011-04-05 18:02:46 +00:00
Johnny Chen 268d63f307 Check for invalid register encodings for UMAAL and friends where:
if dLo == 15 || dHi == 15 || n == 15 || m == 15 then UNPREDICTABLE;
    if dHi == dLo then UNPREDICTABLE;

rdar://problem/9230202

llvm-svn: 128895
2011-04-05 17:43:10 +00:00
Johnny Chen 9b3ccba636 Fix SRS/SRSW encoding bits.
rdar://problem/9230801 ARM disassembler discrepancy: erroneously accepting SRS

Plus add invalid-RFEorLDMIA-arm.txt test which should have been checked in with
http://llvm.org/viewvc/llvm-project?view=rev&revision=128859.

llvm-svn: 128864
2011-04-05 00:16:18 +00:00
Johnny Chen 8372006296 Fix incorrect alignment for NEON VST2b32_UPD.
rdar://problem/9225433

llvm-svn: 128841
2011-04-04 20:35:31 +00:00
Bruno Cardoso Lopes bda3632bcd - Implement asm parsing support for LDRSBT, LDRHT, LDRSHT and STRHT
also fix the encoding of the later.
- Add a new encoding bit to describe the index mode used in AM3.
- Teach printAddrMode3Operand to check by the addressing mode which
  index mode to print.
- Testcases.

llvm-svn: 128832
2011-04-04 17:18:19 +00:00
Joerg Sonnenberger fc4789da4a Add support for the VIA PadLock instructions.
llvm-svn: 128826
2011-04-04 16:58:13 +00:00
Johnny Chen 8904cc49db Fixed a bug in disassembly of STR_POST, where the immediate is the second operand in am2offset;
instead of the second operand in addrmode_imm12.

rdar://problem/9225289

llvm-svn: 128757
2011-04-02 02:24:54 +00:00
Johnny Chen 387b36eaae Fixed MOVr for "should be" encoding bits for Inst{19-16} = 0b0000.
rdar://problem/9224276

llvm-svn: 128749
2011-04-01 23:30:25 +00:00
Johnny Chen 6615fa1de0 MOVs should have Inst{19-16} as 0b0000, otherwise, the instruction is UNPREDICTABLE.
rdar://problem/9224120

llvm-svn: 128748
2011-04-01 23:15:50 +00:00
Johnny Chen 1e1010f56f Fix the instruction table entries for AI1_adde_sube_s_irs multiclass definition so that
all the instruction have:

    let Inst{31-27} = 0b1110; // non-predicated

Before, the ARM decoder was confusing:

> 0x40 0xf3 0xb8 0x80

as:

Opcode=16 Name=ADCSSrs Format=ARM_FORMAT_DPSOREGFRM(5)
 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10  9  8  7  6  5  4  3  2  1  0 
-------------------------------------------------------------------------------------------------
| 1: 0: 0: 0| 0: 0: 0: 0| 1: 0: 1: 1| 1: 0: 0: 0| 1: 1: 1: 1| 0: 0: 1: 1| 0: 1: 0: 0| 0: 0: 0: 0|
-------------------------------------------------------------------------------------------------

	adcs	pc, r8, r0, asr #6

since the cond field for ADCSSrs is a wild card, and so is ADCrs, with the ADCSSrs having Inst{20} as '1'.

Now, the AR decoder behaves correctly:

> 0x40 0xf3 0xb8 0x80
> END
Executing command: /Volumes/data/lldb/llvm/Debug+Asserts/bin/llvm-mc -disassemble -triple=arm-apple-darwin -debug-only=arm-disassembler mc-input.txt

Opcode=19 Name=ADCrs Format=ARM_FORMAT_DPSOREGFRM(5)
 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10  9  8  7  6  5  4  3  2  1  0 
-------------------------------------------------------------------------------------------------
| 1: 0: 0: 0| 0: 0: 0: 0| 1: 0: 1: 1| 1: 0: 0: 0| 1: 1: 1: 1| 0: 0: 1: 1| 0: 1: 0: 0| 0: 0: 0: 0|
-------------------------------------------------------------------------------------------------

	adcshi	pc, r8, r0, asr #6
> 

rdar://problem/9223094

llvm-svn: 128746
2011-04-01 22:32:51 +00:00
Johnny Chen 3dfb80afbf Fix a LDRT/LDRBT decoding bug where for Encoding A2, if Inst{4} != 0, we should reject the instruction
as invalid.

llvm-svn: 128734
2011-04-01 20:21:38 +00:00
Johnny Chen fe6fba3fe6 Fix LDRi12 immediate operand, which was changed to be the second operand in $addrmode_imm12 => (ops GPR:$base, i32imm:$offsimm).
rdar://problem/9219356

llvm-svn: 128722
2011-04-01 18:26:38 +00:00
Bruno Cardoso Lopes ab8305063b Apply again changes to support ARM memory asm parsing. I removed
all LDR/STR changes and left them to a future patch. Passing all
checks now.

- Implement asm parsing support for LDRT, LDRBT, STRT, STRBT and
  fix the encoding wherever is possible.
- Add a new encoding bit to describe the index mode used and teach
  printAddrMode2Operand to check by the addressing mode which index
  mode to print.
- Testcases

llvm-svn: 128689
2011-03-31 23:26:08 +00:00
Johnny Chen 9cd9c4e5c9 Add a test case for a malformed LDC/LDC2 instructions with PUDW = 0b0000, which
amounts to an UNDEFINED instruction.

llvm-svn: 128668
2011-03-31 20:54:30 +00:00
Johnny Chen 7b203f9cae Fix single word and unsigned byte data transfer instruction encodings so that
Inst{4} = 0.

rdar://problem/9213022

llvm-svn: 128662
2011-03-31 19:28:35 +00:00
Johnny Chen 13baa0e650 Add BLXi to the instruction table for disassembly purpose.
A8.6.23 BLX (immediate)

rdar://problem/9212921

llvm-svn: 128644
2011-03-31 17:53:50 +00:00
Daniel Dunbar 22c5560bc8 Remove stray empty test file.
llvm-svn: 128640
2011-03-31 17:01:56 +00:00
Bruno Cardoso Lopes c2452a6f1d Revert r128632 again, until I figure out what break the tests
llvm-svn: 128635
2011-03-31 15:54:36 +00:00
Bruno Cardoso Lopes 4c0aebfb91 Reapply r128585 without generating a lib depedency cycle. An updated log:
- Implement asm parsing support for LDRT, LDRBT, STRT, STRBT and
  {STR,LDC}{2}_{PRE,POST} fixing the encoding wherever is possible.
- Move all instructions which use am2offset without a pattern to use
  addrmode2.
- Add a new encoding bit to describe the index mode used and teach
  printAddrMode2Operand to check by the addressing mode which index
  mode to print.
- Testcases

llvm-svn: 128632
2011-03-31 14:52:28 +00:00
Matt Beaumont-Gay 73906b05ca Revert "- Implement asm parsing support for LDRT, LDRBT, STRT, STRBT and"
This revision introduced a dependency cycle, as nlewycky mentioned by email.

llvm-svn: 128597
2011-03-31 00:39:16 +00:00
Bruno Cardoso Lopes 280264b889 - Implement asm parsing support for LDRT, LDRBT, STRT, STRBT and
{STR,LDC}{2}_PRE.
- Fixed the encoding in some places.
- Some of those instructions were using am2offset and now use addrmode2.
Codegen isn't affected, instructions which use SelectAddrMode2Offset were not
touched.
- Teach printAddrMode2Operand to check by the addressing mode which index
mode to print.
- This is a work in progress, more work to come. The idea is to change places
which use am2offset to use addrmode2 instead, as to unify assembly parser.
- Add testcases for assembly parser

llvm-svn: 128585
2011-03-30 23:32:32 +00:00
Johnny Chen 0ae2501fd2 Add a test case for thumb stc2 instruction.
llvm-svn: 128517
2011-03-30 01:02:06 +00:00
Kevin Enderby df4935cc90 Adding a test for "-inf" as well.
llvm-svn: 128495
2011-03-29 21:54:10 +00:00
Johnny Chen a0f0b5d9f0 Add a test case for MSRi.
llvm-svn: 128494
2011-03-29 21:52:02 +00:00
Kevin Enderby 5bbe957155 Added support symbolic floating point constants in the MC assembler for Infinity
and Nans with the same strings as GAS supports.  rdar://8673024

llvm-svn: 128488
2011-03-29 21:11:52 +00:00
Johnny Chen dcb29ae8ee Add a thumb test file for printf (iOS 4.3).
llvm-svn: 128487
2011-03-29 21:09:30 +00:00
Johnny Chen 4bc2baeb28 A8.6.188 STC, STC2
The STC_OPTION and STC2_OPTION instructions should have their coprocessor option enclosed in {}.

rdar://problem/9200661

llvm-svn: 128478
2011-03-29 19:49:38 +00:00
Johnny Chen 7927569f05 Rename invalid-VLDMSDB-arm.txt to be invalid-VLDMSDB_UPD-arm.txt.
llvm-svn: 128477
2011-03-29 19:10:06 +00:00
Johnny Chen ec6f76ed38 Add and modify some tests.
llvm-svn: 128476
2011-03-29 19:08:52 +00:00
Owen Anderson d6c5a741b5 Get rid of the non-writeback versions VLDMDB and VSTMDB, which don't actually exist.
llvm-svn: 128461
2011-03-29 16:45:53 +00:00
Daniel Dunbar 4ee0d03274 MC: Add support for disabling "temporary label" behavior. Useful for debugging
on Darwin.

llvm-svn: 128430
2011-03-28 22:49:15 +00:00
Johnny Chen f9cd139369 Fix ARM disassembly for PLD/PLDW/PLI which suffers from code rot and add some test cases.
Add comments to ThumbDisassemblerCore.h for recent change made for t2PLD disassembly.

llvm-svn: 128417
2011-03-28 18:41:58 +00:00
Johnny Chen 923f3dac01 Fixed the t2PLD and friends disassembly and add two test cases.
llvm-svn: 128322
2011-03-26 01:32:48 +00:00
Johnny Chen 1572bf40b4 Add test for A8.6.246 UMULL to both arm-tests.txt amd thumb-tests.txt.
llvm-svn: 128306
2011-03-25 23:02:58 +00:00
Johnny Chen 6e31bf1f6f Add two test cases t2SMLABT and t2SMMULR for DisassembleThumb2Mul().
llvm-svn: 128305
2011-03-25 22:43:28 +00:00
Johnny Chen 49316e40ba Fix DisassembleThumb2DPReg()'s handling of RegClass. Cannot hardcode GPRRegClassID.
Also add some test cases.

rdar://problem/9189829

llvm-svn: 128304
2011-03-25 22:19:07 +00:00
Johnny Chen aaf2c69400 DisassembleThumb2LdSt() did not handle t2LDRs correctly with respect to RegClass. Add two test cases.
rdar://problem/9182892

llvm-svn: 128299
2011-03-25 19:35:37 +00:00
Johnny Chen 4fd2194638 A8.6.226 TBB, TBH:
Add two test cases.

llvm-svn: 128295
2011-03-25 18:40:21 +00:00
Johnny Chen b35548f44d Modify DisassembleThumb2LdStEx() to be more robust/correct in light of recent change to
t2LDREX/t2STREX instructions.  Add two test cases.

llvm-svn: 128293
2011-03-25 18:29:49 +00:00
Daniel Dunbar 6f4c9425eb MC: Improve some diagnostics on uses of '.' pseudo-symbol.
llvm-svn: 128289
2011-03-25 17:47:17 +00:00
Johnny Chen aa84d41dfc Instruction formats of SWP/SWPB were changed from LdStExFrm to MiscFrm. Modify the disassembler to handle that.
rdar://problem/9184053

llvm-svn: 128285
2011-03-25 17:31:16 +00:00
Johnny Chen 757ca69770 Also need to handle invalid imod values for CPS2p.
rdar://problem/9186136

llvm-svn: 128283
2011-03-25 17:03:12 +00:00
Johnny Chen a52143bff3 Modify the wrong logic in the assert of DisassembleThumb2LdStDual() (the register classes were changed),
modify the comment to be up-to-date, and add a test case for A8.6.66 LDRD (immediate) Encoding T1.

llvm-svn: 128252
2011-03-25 01:09:48 +00:00
Johnny Chen 72f4a95144 delegate the disassembly of t2ADR to the more generic t2ADDri12/t2SUBri12 instructions, and add a test case for that.
llvm-svn: 128249
2011-03-25 00:17:42 +00:00
Johnny Chen ceef55466a The opcode names ("tLDM", "tLDM_UPD") used for conflict resolution have been stale since
the change to ("tLDMIA", "tLDMIA_UPD").  Update the conflict resolution code and add
test cases for that.

llvm-svn: 128247
2011-03-24 23:42:31 +00:00
Johnny Chen 73193f2475 The ARM disassembler was confused with the 16-bit tSTMIA instruction.
According to A8.6.189 STM/STMIA/STMEA (Encoding T1), there's only tSTMIA_UPD available.
Ignore tSTMIA for the decoder emitter and add a test case for that.

llvm-svn: 128246
2011-03-24 23:21:14 +00:00
Johnny Chen 9302df0ad9 Handle the added VBICiv*i* NEON instructions, too.
llvm-svn: 128243
2011-03-24 22:04:39 +00:00
Johnny Chen 6469ca0c33 T2 Load/Store Multiple:
These instructions were changed to not embed the addressing mode within the MC instructions
We also need to update the corresponding assert stmt.  Also add a test case.

llvm-svn: 128240
2011-03-24 21:36:56 +00:00
Benjamin Kramer dd9eb21c3f Plug a leak in the arm disassembler and put the tests back.
llvm-svn: 128238
2011-03-24 21:14:28 +00:00
Bruno Cardoso Lopes f170f8bff6 Add asm parsing support w/ testcases for strex/ldrex family of instructions
llvm-svn: 128236
2011-03-24 21:04:58 +00:00
Johnny Chen 471f5aa233 Remove these two test files as they cause llvm-i686-linux-vg_leak build to fail 'test-llvm'.
These two are test cases which should result in 'invalid instruction encoding' from running llvm-mc -disassemble.

llvm-svn: 128235
2011-03-24 20:56:23 +00:00
Johnny Chen 8bbc12824a ADR was added with the wrong encoding for inst{24-21}, and the ARM decoder was fooled.
Set the encoding bits to {0,?,?,0}, not 0.  Plus delegate the disassembly of ADR to
the more generic ADDri/SUBri instructions, and add a test case for that.

llvm-svn: 128234
2011-03-24 20:42:48 +00:00
Johnny Chen c5207f7167 The r118201 added support for VORR (immediate). Update ARMDisassemblerCore.cpp to disassemble the
VORRiv*i* instructions properly within the DisassembleN1RegModImmFrm() function.  Add a test case.

llvm-svn: 128226
2011-03-24 18:40:38 +00:00
Johnny Chen 1dd041083d Add comments to the handling of opcode CPS3p to reject invalid instruction encoding,
a test case of invalid CPS3p encoding and one for invalid VLDMSDB due to regs out of range.

llvm-svn: 128220
2011-03-24 17:04:22 +00:00
Johnny Chen 0f5d52d658 Load/Store Multiple:
These instructions were changed to not embed the addressing mode within the MC instructions
We also need to update the corresponding assert stmt.  Also add two test cases.

llvm-svn: 128191
2011-03-24 01:40:42 +00:00
Johnny Chen 1de8cc6f95 STRT and STRBT was incorrectly tagged as IndexModeNone during the refactorings (r119821).
We now tag them as IndexModePost.

llvm-svn: 128189
2011-03-24 01:07:26 +00:00
Johnny Chen f949d8e13d The r128103 fix to cope with the removal of addressing modes from the MC instructions
were incomplete.  The assert stmt needs to be updated and the operand index incrment is wrong.
Fix the bad logic and add some sanity checking to detect bad instruction encoding;
and add a test case.

llvm-svn: 128186
2011-03-24 00:28:38 +00:00
Johnny Chen 122a6304ef Add disassembly test cases for:
A8.6.292 VCMPE

llvm-svn: 128120
2011-03-22 23:08:56 +00:00
Johnny Chen 30350cdbdf LDRT and LDRBT was incorrectly tagged as IndexModeNone during the refactorings (r119821).
We now tag them as IndexModePost.

This fixed http://llvm.org/bugs/show_bug.cgi?id=9530.

llvm-svn: 128113
2011-03-22 22:28:49 +00:00
Johnny Chen 0cf62f5045 Add one more test case for VFP Load/Store Multiple (vpop).
llvm-svn: 128106
2011-03-22 20:21:08 +00:00
Johnny Chen 230268261b A8.6.399 VSTM:
VFP Load/Store Multiple Instructions used to embed the IA/DB addressing mode within the
MC instruction; that has been changed so that now, for example, VSTMDDB_UPD and VSTMDIA_UPD
are two instructions.  Update the ARMDisassemblerCore.cpp's DisassembleVFPLdStMulFrm()
to reflect the change.

Also add a test case.

llvm-svn: 128103
2011-03-22 20:00:10 +00:00
Rafael Espindola 1557fd6d39 Write the section table and the section data in the same order that
gun as does. This makes it a lot easier to compare the output of both
as the addresses are now a lot closer.

llvm-svn: 127972
2011-03-20 18:44:20 +00:00
Johnny Chen 0c5f670fe7 Fixed an assert by the ARM disassembler for LDRD_PRE/POST.
The relevant instruction table entries were changed sometime ago to no longer take
<Rt2> as an operand.  Modify ARMDisassemblerCore.cpp to accomodate the change and
add a test case.

llvm-svn: 127935
2011-03-19 01:16:20 +00:00
Owen Anderson 1d2f5cebe4 Add support to the ARM asm parser for the register-shifted-register forms of basic instructions like ADD. More work left to be done to support other instances of shifter ops in the ISA.
llvm-svn: 127917
2011-03-18 22:50:18 +00:00
Joerg Sonnenberger 3fbfcc0e1e Support explicit argument forms for the X86 string instructions.
For now, only the default segments are supported.

llvm-svn: 127875
2011-03-18 11:59:40 +00:00
Johnny Chen e387f8a5e9 The disassembler for Thumb was wrongly adding 4 to the computed imm32 offset.
Remove the offending logic and update the test cases.

llvm-svn: 127843
2011-03-18 00:38:03 +00:00
Johnny Chen 221a014ea3 It used to be that t_addrmode_s4 was used for both:
o A8.6.195 STR (register) -- Encoding T1
o A8.6.193 STR (immediate, Thumb) -- Encoding T1

It has been changed so that now they use different addressing modes
and thus different MC representation (Operand Infos).  Modify the
disassembler to reflect the change, and add relevant tests.

llvm-svn: 127833
2011-03-17 22:04:05 +00:00
Daniel Dunbar f1d62cfc8f MC/Mach-O: Fix regression introduced in r126127, this assignment shouldn't have
been removed.

llvm-svn: 127812
2011-03-17 16:25:24 +00:00
Joerg Sonnenberger 07de07eeea Fix handling of @IDNTPOFF relocations, they need to get STT_TLS.
While here, add VK_ARM_TPOFF and VK_ARM_GOTTPOFF, too.

llvm-svn: 127780
2011-03-17 00:35:10 +00:00
Johnny Chen a4c3154fca There were two issues fixed:
1. The ARM Darwin *r9 call instructions were pseudo-ized recently.
   Modify the ARMDisassemblerCore.cpp file to accomodate the change.

2. The disassembler was unnecessarily adding 8 to the sign-extended imm24:

   imm32 = SignExtend(imm24:'00', 32); // A8.6.23 BL, BLX (immediate)
                                       // Encoding A1

   It has no business doing such.  Removed the offending logic.

Add test cases to arm-tests.txt.

llvm-svn: 127707
2011-03-15 22:27:33 +00:00
Sean Callanan f2f4837de3 Basic sanity checks to ensure that 2- and 3-byte
VEX prefixes are working for triadic AVX
instructions.  This concludes the patch set to
enable AVX support for the X86 disassebler.

llvm-svn: 127647
2011-03-15 01:32:46 +00:00
Johnny Chen 7a2873dfbe Fixed an ARM disassembler bug where it does not handle STRi12 correctly because an extra
register operand was erroneously added.  Remove an incorrect assert which triggers the bug.

rdar://problem/9131529

llvm-svn: 127642
2011-03-15 01:13:17 +00:00
Cameron Zwarich 338d362200 Roll r127459 back in:
Optimize trivial branches in CodeGenPrepare, which often get created from the
lowering of objectsize intrinsics. Unfortunately, a number of tests were relying
on llc not optimizing trivial branches, so I had to add an option to allow them
to continue to test what they originally tested.

This fixes <rdar://problem/8785296> and <rdar://problem/9112893>.

llvm-svn: 127498
2011-03-11 21:52:04 +00:00
Daniel Dunbar 94ccb27b43 Revert r127459, "Optimize trivial branches in CodeGenPrepare, which often get
created from the", it broke some GCC test suite tests.

llvm-svn: 127477
2011-03-11 19:30:30 +00:00
Cameron Zwarich cc27b3acc4 Optimize trivial branches in CodeGenPrepare, which often get created from the
lowering of objectsize intrinsics. Unfortunately, a number of tests were relying
on llc not optimizing trivial branches, so I had to add an option to allow them
to continue to test what they originally tested.

This fixes <rdar://problem/8785296> and <rdar://problem/9112893>.

llvm-svn: 127459
2011-03-11 04:54:27 +00:00
Johnny Chen 9363d41f14 LLVM combines the offset mode of A8.6.199 A1 & A2 into STRBT.
The insufficient encoding information of the combined instruction confuses the decoder wrt
UQADD16.  Add extra logic to recover from that.

Fixed an assert reported by Sean Callanan

llvm-svn: 127354
2011-03-09 20:01:14 +00:00
Bill Wendling 5e57137e87 * Correct encoding for VSRI.
* Add tests for VSRI and VSLI.

llvm-svn: 127297
2011-03-09 00:33:17 +00:00
Bill Wendling a7f303de71 Correct the encoding for VRSRA and VSRA instructions.
llvm-svn: 127294
2011-03-09 00:00:35 +00:00
Bill Wendling e313f16ad9 * Fix VRSHR and VSHR to have the correct encoding for the immediate.
* Update the NEON shift instruction test to expect what 'as' produces.

llvm-svn: 127293
2011-03-08 23:48:09 +00:00
Bill Wendling a259686db1 A few more tests for instruction encodings.
llvm-svn: 127209
2011-03-08 02:51:48 +00:00
Bill Wendling 77ad1dc56d Rename the narrow shift right immediate operands to "shr_imm*" operands. Also
expand the testing of the narrowing shift right instructions.

No functionality change.

llvm-svn: 127193
2011-03-07 23:38:41 +00:00
Joerg Sonnenberger 62f759791a Be nice to Xcore and the XMOS assembler and avoid quoting section names
that contain only letters, digits and the characters "_" and ".".

llvm-svn: 127028
2011-03-04 20:03:14 +00:00
Eli Friedman 5aa4c68eca Followup to r126970: add 64-bit encoding tests for str with reg operand.
llvm-svn: 126987
2011-03-04 04:06:47 +00:00
Eli Friedman f63614a982 PR9377: Handle x86 str with register operand in a way consistent with gas.
llvm-svn: 126970
2011-03-04 00:10:17 +00:00
Joerg Sonnenberger 852ab890b5 Bug#9033: For the ELF assembler output, always quote the section name.
llvm-svn: 126963
2011-03-03 22:31:08 +00:00
Eli Friedman d92d17bf67 PR9352: Always emit a relocation for weak symbols. Not emitting relocations
for calls to weak symbols with a definition has the appearance of working
with LLVM-generated code because weak symbol definitions are put in their
own sections.

llvm-svn: 126933
2011-03-03 07:24:36 +00:00
Bob Wilson 6f6d739b6e TableGen should not ignore BX instructions for the ARM disassembler. pr9368.
llvm-svn: 126931
2011-03-03 07:19:52 +00:00
Bob Wilson ec84568904 pr9367: Add missing predicated BLX instructions.
Patch by Jyun-Yan You, with some minor adjustments and a testcase from me.

llvm-svn: 126915
2011-03-03 01:41:01 +00:00
Kevin Enderby b8b6041734 Fixes an assertion failure while disassembling ARM rsbs reg/reg form.
Patch by Ted Kremenek!

llvm-svn: 126895
2011-03-02 23:08:33 +00:00
Bill Wendling 3b1459b810 Narrow right shifts need to encode their immediates differently from a normal
shift.

   16-bit: imm6<5:3> = '001', 8 - <imm> is encded in imm6<2:0>
   32-bit: imm6<5:4> = '01',16 - <imm> is encded in imm6<3:0>
   64-bit: imm6<5> = '1', 32 - <imm> is encded in imm6<4:0>

llvm-svn: 126723
2011-03-01 01:00:59 +00:00
Kevin Enderby 58775fea6f Fix the arm's disassembler for blx that was building an MCInst without the
needed two predicate operands before the imm operand.

llvm-svn: 126662
2011-02-28 18:46:31 +00:00
Chris Lattner 78178749e9 split this test into arch specific pieces, so the ARM
test isn't run when the arm backend isn't built.  This
fixes PR9327

llvm-svn: 126500
2011-02-25 19:06:35 +00:00
Joerg Sonnenberger afb36fad99 Restore r125595 (reverted in r126336) with modifications:
Introduce a variable in the AsmParserExtension whether [] is valid in an
expression. If it is true, parse them like (). Enable this for ELF only.

llvm-svn: 126443
2011-02-24 21:59:22 +00:00
Devang Patel b52040da17 Move arch specific tests in arch specific directories.
llvm-svn: 126401
2011-02-24 19:06:27 +00:00
Jim Grosbach fe4858f269 Remove file. Previous commit deleted content, but left the file around.
llvm-svn: 126337
2011-02-23 21:43:31 +00:00
Jim Grosbach 0c03a3a146 Revert r125595, which is an X86-only undocumented assembly syntax extension
enabled for all targets. Non-X86 targets should not have this behavior
enabled by default.

Joerg, if you would like to resubmit with the behavior conditionalized to be
X86-ELF only, that's fine.

llvm-svn: 126336
2011-02-23 21:26:51 +00:00
Rafael Espindola 9e18e96264 Put in the symbol table symbols only used in a .globl statement.
Fixes PR9292.

llvm-svn: 126330
2011-02-23 20:22:07 +00:00
Sean Callanan 34770edf43 Fixed a bug in the enhanced disassembler that caused
it to ignore valid uses of FS and GS as additional
base registers in address computations.  Added a test
case for this.

llvm-svn: 126302
2011-02-23 03:31:28 +00:00
Joerg Sonnenberger b7e635dcad Use the same (%dx) hack for in[bwl] as for out[bwl].
llvm-svn: 126244
2011-02-22 20:40:09 +00:00
Sean Callanan c1b7775e0f Added a testcase for the enhanced disassembly bug
fixed in r126147, where a field in the X86 decode
structure was being read as bits, not bytes.

llvm-svn: 126182
2011-02-22 02:19:18 +00:00
Joerg Sonnenberger 60e7629258 Recognize loopz and loopnz as aliases for loope and loopne.
From Dimitry Andric.

llvm-svn: 126168
2011-02-22 00:43:07 +00:00
Rafael Espindola e39062199e Implement xgetbv and xsetbv.
Patch by Jai Menon.

llvm-svn: 126165
2011-02-22 00:35:18 +00:00