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591 Commits

Author SHA1 Message Date
Jim Grosbach ed428bc1ce ARM more NEON VLD/VST composite physical register refactoring. 
Register pair, all lanes subscripting.

llvm-svn: 152157
 2012-03-06 23:10:38 +00:00
Jim Grosbach 13a292cc74 ARM refactor more NEON VLD/VST instructions to use composite physregs 
Register pair VLD1/VLD2 all-lanes instructions. Kill off more of the
pseudos as a result.

llvm-svn: 152150
 2012-03-06 22:01:44 +00:00
Jim Grosbach e5307f9019 ARM Refactor VLD/VST spaced pair instructions. 
Use the new composite physical registers.

llvm-svn: 152063
 2012-03-05 21:43:40 +00:00
Jim Grosbach c71bf4739a ARM Remove a bit of dead code. 
llvm-svn: 152061
 2012-03-05 21:09:58 +00:00
Jim Grosbach c988e0c521 ARM refactor away a bunch of VLD/VST pseudo instructions. 
With the new composite physical registers to represent arbitrary pairs
of DPR registers, we don't need the pseudo-registers anymore. Get rid of
a bunch of them that use DPR register pairs and just use the real
instructions directly instead.

llvm-svn: 152045
 2012-03-05 19:33:30 +00:00
Craig Topper e55c556a24 Convert assert(0) to llvm_unreachable 
llvm-svn: 149961
 2012-02-07 02:50:20 +00:00
Jim Grosbach a2147ce313 Tidy up. One more return type mismatch fix. 
llvm-svn: 149452
 2012-01-31 23:51:09 +00:00
Jim Grosbach 5e5eabb5ab Keep source information, if available, around for ARM Fixups. 
Adjust an example MachObjectWriter diagnostic to use the information
to issue a better message.

Before:
LLVM ERROR: unknown ARM fixup kind!

After:
x.s:6:5: error: unsupported relocation on symbol
    beq bar
    ^

rdar://9800182

llvm-svn: 149093
 2012-01-26 23:20:15 +00:00
Jim Grosbach c8f2b7877b Tidy up. Fix mismatched return types for error handling. 
llvm-svn: 149062
 2012-01-26 15:56:45 +00:00
Jim Grosbach 82f76d1275 ARM assemly parsing and validation of IT instruction. 
"Although a Thumb2 instruction, the IT mnemonic shall be permitted in
ARM mode, and the condition verified to match the condition code(s)
on the following instruction(s)."

PR11853

llvm-svn: 148969
 2012-01-25 19:52:01 +00:00
Jim Grosbach 086cbfac7d NEON VLD4(all lanes) assembly parsing and encoding. 
llvm-svn: 148884
 2012-01-25 00:01:08 +00:00
Jim Grosbach b78403ce48 NEON VLD3(all lanes) assembly parsing and encoding. 
llvm-svn: 148882
 2012-01-24 23:47:04 +00:00
Jim Grosbach 8e2722cdb0 NEON VST4(one lane) assembly parsing and encoding. 
llvm-svn: 148836
 2012-01-24 18:53:13 +00:00
Jim Grosbach 14952a0e32 NEON VLD4(one lane) assembly parsing and encoding. 
llvm-svn: 148832
 2012-01-24 18:37:25 +00:00
Jim Grosbach da70eac268 NEON VST4(multiple 4 element structures) assembly parsing. 
llvm-svn: 148764
 2012-01-24 00:58:13 +00:00
Jim Grosbach ed561fc850 NEON VLD4(multiple 4 element structures) assembly parsing. 
llvm-svn: 148762
 2012-01-24 00:43:17 +00:00
Jim Grosbach 1e946a4f91 Tidy up. Remove some vertical space for readability. 
llvm-svn: 148761
 2012-01-24 00:43:12 +00:00
Jim Grosbach d3d36d9315 NEON VST3(single element from one lane) assembly parsing. 
llvm-svn: 148755
 2012-01-24 00:07:41 +00:00
Jim Grosbach 1a74724fc9 NEON VST3(multiple 3-element structures) assembly parsing. 
llvm-svn: 148748
 2012-01-23 23:45:44 +00:00
Jim Grosbach ac2af3ffab NEON VLD3(multiple 3-element structures) assembly parsing. 
llvm-svn: 148745
 2012-01-23 23:20:46 +00:00
Jim Grosbach a8b444b08b NEON VLD3 lane-indexed assembly parsing and encoding. 
llvm-svn: 148734
 2012-01-23 21:53:26 +00:00
Jim Grosbach d28ef9ac46 Simplify some NEON assembly pseudo definitions. 
Let the generic token alias definitions handle the data subtype
suffices. We don't need explicit versions for each.

llvm-svn: 148718
 2012-01-23 19:39:08 +00:00
Jim Grosbach 78dcaed8ca Thumb2 'add rd, pc, imm' alternate form for 'adr' instruction. 
llvm-svn: 148601
 2012-01-21 00:07:56 +00:00
David Blaikie 46a9f016c5 More dead code removal (using -Wunreachable-code) 
llvm-svn: 148578
 2012-01-20 21:51:11 +00:00
Jim Grosbach a9d36fbca7 NEON use vmov.i32 to splat some f32 values into vectors. 
For bit patterns that aren't representable using the 8-bit floating point
representation for vmov.f32, but are representable via vmov.i32, treat
the .f32 syntax as an alias. Most importantly, this covers the case
'vmov.f32 Vd, #0.0'.

rdar://10616677

llvm-svn: 148556
 2012-01-20 18:09:51 +00:00
Jim Grosbach 235c8d2d94 ARM assembly diagnostic caret in better position for FPImm. 
llvm-svn: 148459
 2012-01-19 02:47:30 +00:00
Jim Grosbach 94298a906a Thumb2 alternate syntax for LDR(literal) and friends. 
Explicit pc-relative syntax. For example, "ldrb r2, [pc, #-22]".

rdar://10250964

llvm-svn: 148432
 2012-01-18 22:46:46 +00:00
David Blaikie 486df738c3 Removing unused default switch cases in switches over enums that already account for all enumeration values explicitly. 
(This time I believe I've checked all the -Wreturn-type warnings from GCC & added the couple of llvm_unreachables necessary to silence them. If I've missed any, I'll happily fix them as soon as I know about them)

llvm-svn: 148262
 2012-01-16 23:24:27 +00:00
Matt Beaumont-Gay b982d8eb65 Fix malformed assert. 
If anybody has strong feelings about 'default: assert(0 && "blah")' vs
'default: llvm_unreachable("blah")', feel free to regularize the instances of
each in this file.

llvm-svn: 147459
 2012-01-03 19:03:59 +00:00
Jim Grosbach ea2319112f ARM VFP assembly parsing and encoding for VCVT(float <--> fixed point). 
rdar://10558523

llvm-svn: 147189
 2011-12-22 22:19:05 +00:00
Jim Grosbach c4d8d2f155 Tidy up. Use predicate function a bit more liberally. 
llvm-svn: 147184
 2011-12-22 22:02:35 +00:00
Jim Grosbach 489ed5929e ARM pre-UAL aliases. fcmp[sd]. 
llvm-svn: 147158
 2011-12-22 19:20:45 +00:00
Jim Grosbach 12ccf45bbb ARM assembler should accept shift-by-zero for any shifted-immediate operand. 
Just treat it as-if the shift wasn't there at all. 'as' compatibility.

rdar://10604767

llvm-svn: 147153
 2011-12-22 18:04:04 +00:00
Jim Grosbach 21488b8839 ARM assembly parser canonicallize on 'lsl' for shift-by-zero form. 
llvm-svn: 147152
 2011-12-22 17:37:00 +00:00
Jim Grosbach 3794d82af5 Tidy up. Trailing whitespace. 
llvm-svn: 147151
 2011-12-22 17:17:10 +00:00
Jim Grosbach 62bffd8827 Nuke invalid comment from copy/paste. 
llvm-svn: 147150
 2011-12-22 17:04:50 +00:00
Jim Grosbach 1152cc0cad ARM asm parser should be more lenient w/ .thumb_func directive. 
Rather than require the symbol to be explicitly an argument of the directive,
allow it to look ahead and grab the symbol from the next non-whitespace
line.

rdar://10611140

llvm-svn: 147100
 2011-12-21 22:30:16 +00:00
Jim Grosbach 8c59bbc1ed Thumb2 assembly parsing of 'mov rd, rn, rrx'. 
Maps to the RRX instruction. Missed this case earlier.

rdar://10615373

llvm-svn: 147096
 2011-12-21 21:04:19 +00:00
Jim Grosbach b3ef713e44 Thumb2 assembly parsing of 'mov(register shifted register)' aliases. 
These map to the ASR, LSR, LSL, ROR instruction definitions.

rdar://10615373

llvm-svn: 147094
 2011-12-21 20:54:00 +00:00
Jim Grosbach 7de7ab83fa ARM assembly parsing allows constant expressions for lane indices. 
llvm-svn: 147028
 2011-12-21 01:19:23 +00:00
Jim Grosbach c5af54ec89 ARM NEON VLD2 assembly parsing for structure to all lanes, non-writeback. 
llvm-svn: 147025
 2011-12-21 00:38:54 +00:00
Jim Grosbach cd22e4a81e ARM .req register name aliases are case insensitive, just like regnames. 
llvm-svn: 147009
 2011-12-20 23:11:00 +00:00
Jim Grosbach 4eda145c7f Move comment to appropriate place. 
llvm-svn: 147000
 2011-12-20 22:26:38 +00:00
Jim Grosbach 2c59052984 ARM assembly parsing and encoding for VST2 single-element, double spaced. 
llvm-svn: 146990
 2011-12-20 20:46:29 +00:00
Jim Grosbach 75e2ab5db2 ARM assembly parsing and encoding for VLD2 single-element, double spaced. 
llvm-svn: 146983
 2011-12-20 19:21:26 +00:00
Jason W Kim 135d244b56 First steps in ARM AsmParser support for .eabi_attribute and .arch 
(Both used for Linux gnueabi)
No behavioral change yet (no tests need so far)

llvm-svn: 146977
 2011-12-20 17:38:12 +00:00
Jim Grosbach e2ca9e5b5f ARM assembly shifts by zero should be plain 'mov' instructions. 
"mov r1, r2, lsl #0" should assemble as "mov r1, r2" even though it's
not strictly legal UAL syntax. It's a common extension and the friendly
thing to do.

rdar://10604663

llvm-svn: 146937
 2011-12-20 00:59:38 +00:00
Jim Grosbach 045b6c71a6 ARM NEON assembly aliases for VMOV<-->VMVN for i32 immediates. 
e.g., "vmov.i32 d4, #-118" can be assembled as "vmvn.i32 d4, #117"

rdar://10603913

llvm-svn: 146925
 2011-12-19 23:51:07 +00:00
Jim Grosbach 8648c10184 ARM assembly parsing and encoding support for LDRD(label). 
rdar://9932658

llvm-svn: 146921
 2011-12-19 23:06:24 +00:00
Jim Grosbach e16acacc3a ARM VFP pre-UAL mnemonic aliases for fmul[sd]. 
llvm-svn: 146892
 2011-12-19 19:43:50 +00:00
Jim Grosbach 92a939ae73 ARM VFP pre-UAL mnemonic aliases for fcpy[sd] and fdiv[sd]. 
llvm-svn: 146887
 2011-12-19 19:02:41 +00:00
Jim Grosbach cef98cddbe ARM NEON relax parse time diagnostics for alignment specifiers. 
There's more variation that we need to handle. Error checking will need
to be on operand predicates.

llvm-svn: 146884
 2011-12-19 18:31:43 +00:00
Jim Grosbach c2f16a3499 Silence warning. 
llvm-svn: 146686
 2011-12-15 21:54:55 +00:00
Jim Grosbach 2f50e92f40 ARM NEON two-register double spaced register list parsing support. 
llvm-svn: 146685
 2011-12-15 21:44:33 +00:00
Jim Grosbach da51104282 ARM NEON better assembly operand range checking for lane indices of VLD/VST. 
llvm-svn: 146608
 2011-12-14 23:35:06 +00:00
Jim Grosbach a8aa30b620 ARM NEON VLD2/VST2 lane indexed assembly parsing and encoding. 
llvm-svn: 146605
 2011-12-14 23:25:46 +00:00
Jim Grosbach ab5830e51b ARM assembler support for the target-specific .req directive. 
rdar://10549683

llvm-svn: 146543
 2011-12-14 02:16:11 +00:00
Jim Grosbach 485e5622f4 Thumb2 assembler aliases for "mov(shifted register)" 
rdar://10549767

llvm-svn: 146520
 2011-12-13 22:45:11 +00:00
Jim Grosbach 18bf363078 ARM LDM/STM system instruction variants. 
rdar://10550269

llvm-svn: 146519
 2011-12-13 21:48:29 +00:00
Jim Grosbach 5ac89675a0 Thumb2 tweak for ccout handling in RSB parsing. 
llvm-svn: 146516
 2011-12-13 21:06:41 +00:00
Jim Grosbach 1f1a3598c2 ARM thumb2 parsing of "rsb rd, rn, #0". 
rdar://10549741

llvm-svn: 146515
 2011-12-13 20:50:38 +00:00
Jim Grosbach 2a2348e6c2 ARM add some more pre-UAL VFP mnemonics for convenience when porting old code. 
llvm-svn: 146508
 2011-12-13 20:13:48 +00:00
Daniel Dunbar 27a7489a03 LLVMBuild: Remove trailing newline, which irked me. 
llvm-svn: 146409
 2011-12-12 19:48:00 +00:00
Jim Grosbach 54337b8617 ARM add some more pre-UAL VFP mnemonics for convenience when porting old code. 
llvm-svn: 146300
 2011-12-10 00:01:02 +00:00
Jim Grosbach 8be2f6577e ARM add some pre-UAL VFP mnemonics for convenience when porting old code. 
llvm-svn: 146296
 2011-12-09 23:34:09 +00:00
Jim Grosbach ef70e9b704 ARM allows '' syntax, not just '#imm' for assembly. 
Backwards compatibility with 'gas'. #imm is the preferered and documented
syntax, but lots of existing code uses the '$' prefix, so we should
support it if we can.

llvm-svn: 146285
 2011-12-09 22:25:03 +00:00
Jim Grosbach 8cc83fa1b7 ARM convenience aliases for VSQRT. 
llvm-svn: 146201
 2011-12-08 22:51:25 +00:00
Jim Grosbach ba7d6ed05d ARM VSHR implied destination operand form aliases. 
llvm-svn: 146192
 2011-12-08 22:06:06 +00:00
Jim Grosbach 98bc797b4d ARM asm parser, just issue a warning for a duplicate reg in a list. 
For better 'gas' compatibility.

llvm-svn: 146185
 2011-12-08 21:34:20 +00:00
Jim Grosbach 4edc7360c7 ARM assembler support for register name aliases. 
rdar://10550084

llvm-svn: 146170
 2011-12-08 19:27:38 +00:00
Jim Grosbach 00326406d4 ARM NEON two-operand aliases for VSHL(immediate). 
llvm-svn: 146125
 2011-12-08 01:30:04 +00:00
Jim Grosbach 9a6ba3c94e ARM VFP support 'fmrs/fmsr' aliases for 'vldr' 
llvm-svn: 146116
 2011-12-08 00:52:55 +00:00
Jim Grosbach 086d013e56 ARM VFP support 'flds/fldd' aliases for 'vldr' 
llvm-svn: 146115
 2011-12-08 00:49:29 +00:00
Jim Grosbach 3050625a50 ARM assembler aliases for "add Rd, #-imm" to "sub Rd, #imm". 
llvm-svn: 146111
 2011-12-08 00:31:07 +00:00
Jim Grosbach 3b559ff3c5 ARM assembly, allow 'asl' as a synonym for 'lsl' in shifted-register operands. 
For 'gas' compatibility.

llvm-svn: 146106
 2011-12-07 23:40:58 +00:00
Jim Grosbach 7f882399b8 ARM support the .arm and .thumb directives for assembly mode switching. 
llvm-svn: 146042
 2011-12-07 18:04:19 +00:00
Jim Grosbach d4b8249434 ARM: NEON SHLL instruction immediate operand range checking. 
llvm-svn: 146003
 2011-12-07 01:07:24 +00:00
Jim Grosbach 175c7d0da5 Thumb2 encoding choice correction for PLD. 
Using encoding T1 for offset of #0 and encoding T2 for #-0.

rdar://10532413

llvm-svn: 145919
 2011-12-06 04:49:29 +00:00
Jim Grosbach b8c719ccc6 Tweak ADDrr fix. Bad check for explicit .w 
llvm-svn: 145863
 2011-12-05 22:27:04 +00:00
Jim Grosbach e489babf9b Thumb2 prefer ADD register encoding T2 to T3 when possible. 
rdar://10529664

llvm-svn: 145860
 2011-12-05 22:16:39 +00:00
Jim Grosbach ec9ba98299 Thumb2 prefer encoding T3 to T4 for ADD/SUB immediate instructions. 
rdar://10529348

llvm-svn: 145851
 2011-12-05 21:06:26 +00:00
Jim Grosbach 9dff9f4c41 ARM NEON VEXT aliases for data type suffices. 
llvm-svn: 145726
 2011-12-02 23:34:39 +00:00
Jim Grosbach eb53822f5a ARM VST1 single lane assembly parsing. 
llvm-svn: 145718
 2011-12-02 22:34:51 +00:00
Jim Grosbach dda976b804 ARM VLD1 single lane assembly parsing. 
llvm-svn: 145712
 2011-12-02 22:01:52 +00:00
Jim Grosbach e7dcbc8691 Clean up aliases for ARM VLD1 single-lane assembly parsing a bit. 
Add the 16-bit lane variants while I'm at it.

llvm-svn: 145693
 2011-12-02 18:52:30 +00:00
Jim Grosbach 04945c42c6 ARM start parsing VLD1 single lane instructions. 
The alias pseudos need cleaned up for size suffix handling, but this gets
the basics working. Will be cleaning up and adding more.

llvm-svn: 145655
 2011-12-02 00:35:16 +00:00
Jim Grosbach 3ecf976ca9 ARM parsing for VLD1 two register all lanes, no writeback. 
llvm-svn: 145504
 2011-11-30 18:21:25 +00:00
Jim Grosbach cd6f5e757c ARM parsing aliases for VLD1 single register all lanes. 
llvm-svn: 145464
 2011-11-30 01:09:44 +00:00
Jim Grosbach 182b6a077e Tidy up a bit. 
llvm-svn: 145458
 2011-11-29 23:51:09 +00:00
Daniel Dunbar 539d0a8a09 build/CMake: Finish removal of add_llvm_library_dependencies. 
llvm-svn: 145420
 2011-11-29 19:25:30 +00:00
Jim Grosbach 01e0439240 Clean up debug printing of ARM shifted operands. 
llvm-svn: 144836
 2011-11-16 21:46:50 +00:00
Jim Grosbach 1a2f9ee3c8 ARM assembly parsing for RRX mnemonic. 
rdar://9704684

llvm-svn: 144812
 2011-11-16 19:05:59 +00:00
Jim Grosbach abcac56869 ARM mode aliases for bitwise instructions w/ register operands. 
rdar://9704684

llvm-svn: 144803
 2011-11-16 18:31:45 +00:00
Jim Grosbach e891fe8d6c ARM assembly parsing for register range syntax for VLD/VST register lists. 
For example,
vld1.f64 {d2-d5}, [r2,:128]!

Should be equivalent to:
vld1.f64 {d2,d3,d4,d5}, [r2,:128]!

It's not documented syntax in the ARM ARM, but it is consistent with what's
accepted for VLDM/VSTM and is unambiguous in meaning, so it's a good thing to
support.

rdar://10451128

llvm-svn: 144727
 2011-11-15 23:19:15 +00:00
Jim Grosbach 8279c1828f ARM accept an immediate offset in memory operands w/o the '#'. 
llvm-svn: 144709
 2011-11-15 22:14:41 +00:00
Jim Grosbach 8d579230c6 ARM enclosing curly braces optional on one-register VLD/VST instruction lists. 
'vld1.f32 d4, [r7]' should be parsed as equivalent to 'vld1.f32 {d4}, [r7]'

rdar://10450488.

llvm-svn: 144701
 2011-11-15 21:45:55 +00:00
Jim Grosbach a92a5d8548 Fix typo. 
llvm-svn: 144695
 2011-11-15 21:01:30 +00:00
Jim Grosbach efa7e95d06 Thumb2 two-operand 'mul' instruction wide encoding parsing. 
rdar://10449724

llvm-svn: 144684
 2011-11-15 19:55:16 +00:00
Jim Grosbach 6efa7b9852 Thumb2 assembly parsing for mul.w in IT block fix. 
When the 3rd operand is not a low-register, and the first two operands are
the same low register, the parser was incorrectly trying to use the 16-bit
instruction encoding.

rdar://10449281

llvm-svn: 144679
 2011-11-15 19:29:45 +00:00
Jim Grosbach ee201faeac Tidy up. 80 column. 
llvm-svn: 144538
 2011-11-14 17:52:47 +00:00
Jim Grosbach 3a3d8e82bc ARM refactor simple immediate asm operand render methods. 
These immediate operands all use the same simple logic for rendering to
MCInst, so have them share the method for doing so.

llvm-svn: 144439
 2011-11-12 00:58:43 +00:00
Jim Grosbach 12952fef71 ARM vldm and vstm VFP instructions can take a data type suffix. 
It's ignored by the assembler when present, but is legal syntax. Other
instructions have something similar, but for some mnemonics it's
only sometimes not significant, so this quick check in the parser will
need refactored into something more robust soon-ish. This gets some
basics working in the meantime.

Partial for rdar://10435264

llvm-svn: 144422
 2011-11-11 23:08:10 +00:00
Jim Grosbach b68eeb3852 Nuke no longer accurate comment. 
llvm-svn: 144411
 2011-11-11 22:30:06 +00:00
Jim Grosbach 85a2343b01 ARM allow Q registers in vldm/vstm register lists. 
rdar://9672822

llvm-svn: 144407
 2011-11-11 21:27:40 +00:00
Jim Grosbach d9a9be269c Thumb2 ldm/stm updating w/ one register in the list are LDR/STR. 
rdar://10429490

llvm-svn: 144338
 2011-11-10 23:58:34 +00:00
Jim Grosbach afad053141 ARM let processInstruction() tranforms chain. 
llvm-svn: 144337
 2011-11-10 23:42:14 +00:00
Jim Grosbach 9bded9dc24 Thumb2 parsing for push/pop w/ hi registers in the reglist. 
rdar://10130228.

llvm-svn: 144331
 2011-11-10 23:17:11 +00:00
Jim Grosbach a113eb0205 Thumb1 diagnostics for reglist on PUSH/POP fix. 
Was not checking the first register in the register list.

llvm-svn: 144329
 2011-11-10 23:01:27 +00:00
Jim Grosbach 5a5ce63742 Thumb MUL assembly parsing for 3-operand form. 
Get the source register that isn't tied to the destination register correct,
even when the assembly source operand order is backwards.

rdar://10428630

llvm-svn: 144322
 2011-11-10 22:10:12 +00:00
Jim Grosbach 42ba6286b6 ARM .thumb_func directive for quoted symbol names. 
Use the getIdentifier() method of the token, not getString(), otherwise
we keep the quotes as part of the symbol name, which we don't want.

rdar://10428015

llvm-svn: 144315
 2011-11-10 20:48:53 +00:00
Jim Grosbach c14871cc67 ARM assembly parsing for LSR/LSL/ROR(immediate). 
More of rdar://9704684

llvm-svn: 144301
 2011-11-10 19:18:01 +00:00
Jim Grosbach 61db5a59f7 ARM assembly parsing for ASR(immediate). 
Start of rdar://9704684

llvm-svn: 144293
 2011-11-10 16:44:55 +00:00
Benjamin Kramer 20baffb257 Replace (Lower|Upper)caseString in favor of StringRef's newest methods. 
llvm-svn: 143891
 2011-11-06 20:37:06 +00:00
Daniel Dunbar bf9bba47a1 build: Add initial cut at LLVMBuild.txt files. 
llvm-svn: 143634
 2011-11-03 18:53:17 +00:00
Jim Grosbach 5c6b6346bc ARM label operands can be quoted. 
For example, labels from Objective-C sources.

llvm-svn: 143511
 2011-11-01 22:38:31 +00:00
Jim Grosbach 7f1f3bd868 ARM label operands can have an optional '#' before them. 
llvm-svn: 143510
 2011-11-01 22:37:37 +00:00
Jim Grosbach fb2f1d61f4 ARM VLD/VST assembly parsing for symbolic address operands. 
llvm-svn: 143413
 2011-11-01 01:24:45 +00:00
Jim Grosbach 05df460269 ARM VST1 w/ writeback assembly parsing and encoding. 
llvm-svn: 143369
 2011-10-31 21:50:31 +00:00
Jim Grosbach 3d785edee2 ARM mode 'mov' to 'mvn' assembler alias. 
llvm-svn: 143237
 2011-10-28 22:50:54 +00:00
Jim Grosbach b009a872d7 Add Thumb2 alias for "mov Rd, #imm" to "mvn Rd, #~imm". 
When '~imm' is encodable as a t2_so_imm but plain 'imm' is not. For example,
  mov r2, #-3
becomes
  mvn r2, #2

rdar://10349224

llvm-svn: 143235
 2011-10-28 22:36:30 +00:00
Jim Grosbach 080a499ee0 ARM Allow 'q' registers in VLD/VST vector lists. 
Just treat it as if the constituent D registers where specified.

rdar://10348896

llvm-svn: 143167
 2011-10-28 00:06:50 +00:00
Jim Grosbach 61fdba048f Thumb2 ldr pc-relative encoding fixes. 
We were parsing label references to the i12 encoding, which isn't right.
They need to go to the pci variant instead.

More of rdar://10348687

llvm-svn: 143068
 2011-10-26 22:22:01 +00:00
Jim Grosbach 4e380354a9 ARM parse parenthesized expressions for label references. 
Partial fix for rdar://10348687.

llvm-svn: 143063
 2011-10-26 21:14:08 +00:00
Jim Grosbach 3ea0657d54 ARM assembly parsing and encoding for VLD1 w/ writeback. 
One and two length register list variants.

llvm-svn: 142861
 2011-10-24 22:16:58 +00:00
Benjamin Kramer 0d6d098841 Move various generated tables into read-only memory, fixing up const correctness along the way. 
llvm-svn: 142726
 2011-10-22 16:50:00 +00:00
Jim Grosbach 118b38cbf1 Assembly parsing for 2-register sequential variant of VLD2. 
llvm-svn: 142691
 2011-10-21 22:21:10 +00:00
Jim Grosbach 846bcff7c7 Assembly parsing for 4-register variant of VLD1. 
llvm-svn: 142682
 2011-10-21 20:35:01 +00:00
Jim Grosbach c4360fe575 Assembly parsing for 3-register variant of VLD1. 
llvm-svn: 142675
 2011-10-21 20:02:19 +00:00
Jim Grosbach 2f2e3c4737 ARM VLD parsing and encoding. 
Next step in the ongoing saga of NEON load/store assmebly parsing. Handle
VLD1 instructions that take a two-register register list.

Adjust the instruction definitions to only have the single encoded register
as an operand. The super-register from the pseudo is kept as an implicit def,
so passes which come after pseudo-expansion still know that the instruction
defines the other subregs.

llvm-svn: 142670
 2011-10-21 18:54:25 +00:00
Owen Anderson 03a173eb71 Don't automatically set the "fc" bits on MSR instructions if the user didn't ask for them. This is a divergence from gas' behavior, but it is correct per the documentation and allows us to forge ahead with roundtrip testing. 
llvm-svn: 142669
 2011-10-21 18:43:28 +00:00
Jim Grosbach e6d88c9a51 Nuke an #if0 that got accidentally left in. 
llvm-svn: 142658
 2011-10-21 16:59:08 +00:00
Jim Grosbach ad47cfcef9 ARM VTBL (one register) assembly parsing and encoding. 
llvm-svn: 142441
 2011-10-18 23:02:30 +00:00
Jim Grosbach e4454e0de2 ARM assembly parsing and encoding for VMOV.i64. 
llvm-svn: 142356
 2011-10-18 16:18:11 +00:00
Jim Grosbach 8211c051ca ARM assembly parsing and encoding for VMOV/VMVN/VORR/VBIC.i32. 
llvm-svn: 142321
 2011-10-18 00:22:00 +00:00
Jim Grosbach cda32ae372 ARM assembly parsing and encoding for VMOV/VMVN/VORR/VBIC.i16. 
llvm-svn: 142303
 2011-10-17 23:09:09 +00:00
Jim Grosbach f18eec158c Tidy up. 
llvm-svn: 142297
 2011-10-17 22:41:42 +00:00
Jim Grosbach 741cd73aab ARM NEON "vmov.i8" immediate assembly parsing and encoding. 
NEON immediates are "interesting". Start of the work to handle parsing them
in an 'as' compatible manner. Getting the matcher to play nicely with
these and the floating point immediates from VFP is an extra fun wrinkle.

llvm-svn: 142293
 2011-10-17 22:26:03 +00:00
Chad Rosier 34957911e7 Removed set, but unused variables. 
Patch by Joe Abbey <jabbey@arxan.com>.

llvm-svn: 142223
 2011-10-17 18:48:30 +00:00
Jim Grosbach 54a20ed0f1 Thumb2 assembly parsing and encoding for LDC/STC. 
llvm-svn: 141811
 2011-10-12 20:54:17 +00:00
Jim Grosbach 483995875f ARM parsing and encoding for the <option> form of LDC/STC instructions. 
llvm-svn: 141786
 2011-10-12 17:34:41 +00:00
Jim Grosbach 9398141c48 ARM assembly parsing and encoding for LDC{2}{L}/STC{2}{L} instructions. 
Fill out the rest of the encoding information, update to properly mark
the LDC/STC instructions as predicable while the LDC2/STC2 instructions are
not, and adjust the parser accordingly.

llvm-svn: 141721
 2011-10-11 21:55:36 +00:00
Jim Grosbach a95ec99a96 ARM parse alignment specifier for NEON load/store instructions. 
llvm-svn: 141682
 2011-10-11 17:29:55 +00:00
Jim Grosbach 871dff76df ARM Rename operand sub-structure 'Mem' to 'Memory' for a bit more clarity. 
llvm-svn: 141671
 2011-10-11 15:59:20 +00:00
Jim Grosbach c11b7c3805 Simplify operand Kind checks a bit. 
llvm-svn: 141592
 2011-10-10 23:06:42 +00:00
Jim Grosbach d0637bfc68 ARM NEON assembly parsing and encoding for VDUP(scalar). 
llvm-svn: 141446
 2011-10-07 23:56:00 +00:00
Jim Grosbach 6e5778f7b1 ARM prefix asmparser operand kind enums for readability. 
llvm-svn: 141438
 2011-10-07 23:24:09 +00:00
Jim Grosbach b8d9f51e4c Improve ARM assembly parser diagnostic for unexpected tokens. 
Consider:
  mov r8, r11 fred

Previously, we issued the not very informative:
x.s:6:1: error: unexpected token in argument list

^

Now we generate:
x.s:5:14: error: unexpected token in argument list
  mov r8, r11 fred
              ^

llvm-svn: 141380
 2011-10-07 18:27:04 +00:00
Owen Anderson 10c5b12f99 Support a valid, but not very useful, encoding of CPSIE where none of the AIF bits are set. 
llvm-svn: 141190
 2011-10-05 17:16:40 +00:00
Jim Grosbach e7fbce7acb ARM assembly parsing and encoding for VMOV immediate. 
llvm-svn: 141046
 2011-10-03 23:38:36 +00:00
Jim Grosbach 46b6646059 ARM parsing/encoding for VCMP/VCMPE. 
llvm-svn: 141038
 2011-10-03 22:30:24 +00:00