Commit Graph

631 Commits

Author SHA1 Message Date
Jiangning Liu 288e1af8c8 Fix #13138, a bug around ARM instruction DSB encoding and decoding issue.
llvm-svn: 161161
2012-08-02 08:21:27 +00:00
Jiangning Liu 10dd40e42d Fix #13241, a bug around shift immediate operand for ARM instruction ADR.
llvm-svn: 161159
2012-08-02 08:13:13 +00:00
Richard Barton 984d0ba6b6 Some formatting to keep Clang happy
llvm-svn: 159948
2012-07-09 18:30:56 +00:00
Richard Barton 35aceb86fe Prevent ARM assembler from losing a right shift by #32 applied to a register
llvm-svn: 159937
2012-07-09 16:31:14 +00:00
Richard Barton d56603722e Spelling!
llvm-svn: 159936
2012-07-09 16:14:28 +00:00
Richard Barton a39625ecc6 Teach the assembler to use the narrow thumb encodings of various three-register dp instructions where permissable.
llvm-svn: 159935
2012-07-09 16:12:24 +00:00
Richard Barton 57b7d16e34 Teach assembler to handle capitalised operation values for DSB instructions
llvm-svn: 159259
2012-06-27 09:48:23 +00:00
Richard Barton 4b7558ef9a Prevent ARM Assembler crashing on unrecognised assembly format for DSB instruction
llvm-svn: 159257
2012-06-27 09:36:19 +00:00
Jim Grosbach 087affe2f3 ARM: Add a better diagnostic for some out of range immediates.
As an example of how the custom DiagnosticType can be used to provide
better operand-mismatch diagnostics, add a custom diagnostic for
the imm0_15 operand class used for several system instructions.
Update the tests to expect the improved diagnostic.

rdar://8987109

llvm-svn: 159051
2012-06-22 23:56:48 +00:00
Kevin Enderby 6c7279ec2e Fix the encoding of the armv7m (MClass) for MSR registers other than aspr,
iaspr, espr and xpsr which also needed to have 0b10 in their mask encoding bits.

llvm-svn: 158560
2012-06-15 22:14:44 +00:00
Richard Barton b0ec375b96 Replace assertion failure for badly formatted CPS instrution with error message.
llvm-svn: 158445
2012-06-14 10:48:04 +00:00
Benjamin Kramer bde9176663 Fix typos found by http://github.com/lyda/misspell-check
llvm-svn: 157885
2012-06-02 10:20:22 +00:00
Craig Topper 42b96d1b74 Mark a static array as const.
llvm-svn: 157368
2012-05-24 04:11:15 +00:00
Kevin Enderby f1b225d0e0 Fix the encoding of the armv7m (MClass) for MSR APSR writes which was missing
the 0b10 mask encoding bits.  Make MSR APSR writes without a _<bits> qualifier
an alias for MSR APSR_nzcvq even though ARM as deprecated it use.  Also add
support for suffixes (_nzcvq, _g, _nzcvqg) for APSR versions.  Some FIXMEs in
the code for better error checking when versions shouldn't be used.
rdar://11457025

llvm-svn: 157019
2012-05-17 22:18:01 +00:00
Silviu Baranga 5a719f9b9a Fixed the LLVM ARM v7 assembler and instruction printer for 8-bit immediate offset addressing. The assembler and instruction printer were not properly handeling the #-0 immediate.
llvm-svn: 156608
2012-05-11 09:10:54 +00:00
Jim Grosbach c6f32b3295 ARM: Thumb add(sp plus register) asm constraints.
Make sure when parsing the Thumb1 sp+register ADD instruction that
the source and destination operands match. In thumb2, just use the
wide encoding if they don't. In Thumb1, issue a diagnostic.

rdar://11219154

llvm-svn: 155748
2012-04-27 23:51:36 +00:00
Richard Barton 82f95ea2ad Fix ARM assembly parsing for upper case condition codes on IT instructions.
llvm-svn: 155720
2012-04-27 17:34:01 +00:00
Richard Barton f435b09eaf Refactor IT handling not to store the bottom bit of the condition code in the mask operand in the MCInst.
llvm-svn: 155700
2012-04-27 08:42:59 +00:00
Richard Barton ba5b0cc82e Unify internal representation of ARM instructions with a register right-shifted by #32. These are stored as shifts by #0 in the MCInst and correctly marshalled when transforming from or to assembly representation.
llvm-svn: 155565
2012-04-25 18:00:18 +00:00
Craig Topper 3ec7c2aa84 Add ifdef around getSubtargetFeatureName in tablegen output file so that only targets that want the function get it. This prevents other targets from getting an unused function warning.
llvm-svn: 155538
2012-04-25 06:56:34 +00:00
Jim Grosbach 5117ef7453 ARM: improved assembler diagnostics for missing CPU features.
When an instruction match is found, but the subtarget features it
requires are not available (missing floating point unit, or thumb vs arm
mode, for example), issue a diagnostic that identifies what the feature
mismatch is.

rdar://11257547

llvm-svn: 155499
2012-04-24 22:40:08 +00:00
Jim Grosbach 003607f474 ARM handle :lower16: and :upper16: after a '#' prefix.
rdar://11252521

llvm-svn: 154862
2012-04-16 21:18:46 +00:00
Benjamin Kramer 673824b4a1 Wire up support for diagnostic ranges in the ARMAsmParser.
As an example, attach range info to the "invalid instruction" message:

$ clang -arch arm -c asm.c
asm.c:2:11: error: invalid instruction
  __asm__("foo r0");
          ^
<inline asm>:1:2: note: instantiated into assembly here
        foo r0
        ^~~

llvm-svn: 154765
2012-04-15 17:04:27 +00:00
Jim Grosbach ad66de155b ARM add missing Thumb1 two-operand aliases for shift-by-immediate.
rdar://11222742

llvm-svn: 154457
2012-04-11 00:15:16 +00:00
Evan Cheng aca6c822e6 Fix a number of problems with ARM fused multiply add/subtract instructions.
1. The new instruction itinerary entries are not properly described.
2. The asm parser can't handle vfms and vfnms.
3. There were no assembler, disassembler test cases.
4. HasNEON2 has the wrong assembler predicate.
rdar://10139676

llvm-svn: 154456
2012-04-11 00:13:00 +00:00
Jim Grosbach df5a244797 ARM fix cc_out operand handling for t2SUBrr instructions.
We were incorrectly conflating some add variants which don't have a
cc_out operand with the mirroring sub encodings, which do. Part of the
awesome non-orthogonality legacy of thumb1. Similarly, handling of
add/sub of an immediate was sometimes incorrectly removing the cc_out
operand for add/sub register variants.

rdar://11216577

llvm-svn: 154411
2012-04-10 17:31:55 +00:00
Jim Grosbach 930f2f66e7 ARM assembly aliases for add negative immediates using sub.
'add r2, #-1024' should just use 'sub r2, #1024' rather than erroring out.
Thumb1 aliases for adding a negative immediate to the stack pointer,
also.

rdar://11192734

llvm-svn: 154123
2012-04-05 20:57:13 +00:00
Jim Grosbach 3d00eecc53 ARM assembly parsing for 'msr' plain 'cpsr' operand.
Plain 'cpsr' is an alias for 'cpsr_fc'.

rdar://11153753

llvm-svn: 154080
2012-04-05 03:17:53 +00:00
Jim Grosbach fdaab531b7 ARM assembler should prefer non-aliases encoding of cmp.
When an immediate is both a value [t2_]so_imm and a [t2_]so_imm_neg,
we want to use the non-negated form to make sure we prefer the normal
encoding, not the aliased encoding via the negation of, e.g., 'cmp.w'.

llvm-svn: 153770
2012-03-30 19:59:02 +00:00
Jim Grosbach 74005ae691 ARM can only use narrow encoding for low regs.
llvm-svn: 153765
2012-03-30 18:39:43 +00:00
Jim Grosbach def5e34812 ARM integrated assembler should encoding choice for add/sub imm.
For 'adds r2, r2, #56' outside of an IT block, the 16-bit encoding T2
can be used for this syntax. Prefer the narrow encoding when possible.

rdar://11156277

llvm-svn: 153759
2012-03-30 17:20:40 +00:00
Jim Grosbach 199ab90946 ARM assembly parsing needs to be paranoid about negative immediates.
Make sure to treat immediates as unsigned when doing relative comparisons.

rdar://11153621

llvm-svn: 153753
2012-03-30 16:31:31 +00:00
Jim Grosbach 0b0298302c ARM assembly 'cmp lr, #0' should not encode using 'cmn'.
The CMP->CMN alias was matching for an immediate of zero when it
should only match for negative values.

rdar://11129224

llvm-svn: 153689
2012-03-29 21:19:52 +00:00
Craig Topper 1fcf5bcae1 Prune some includes
llvm-svn: 153502
2012-03-27 07:54:11 +00:00
Kevin Enderby 816ca27ef6 Fix assembling ARM vst2 instructions with double-spaced registers.
llvm-svn: 153099
2012-03-20 17:41:51 +00:00
Jim Grosbach 67e76babd3 ARM assembly, accept optional '#' on lane index number.
rdar://11057160

llvm-svn: 153053
2012-03-19 20:39:53 +00:00
Jim Grosbach 905686a82a ARM ldm/stm register lists can be out of order.
It's not a good style idea, as the registers will be laid down in memory in
numerical order, not the order they're in the list, but it's legal. vldm/vstm
are stricter.

rdar://11064740

llvm-svn: 152943
2012-03-16 20:48:38 +00:00
Jim Grosbach 6d9766b355 Remove inadvertant commit.
llvm-svn: 152870
2012-03-15 23:00:30 +00:00
Jim Grosbach d28888dd77 ARM case-insensitive checking for APSR_nzcv.
rdar://11056591

llvm-svn: 152846
2012-03-15 21:34:14 +00:00
Jim Grosbach d74560b170 ARM aliases for pre-unified syntax fcmpz[sd] mnemonics.
rdar://11056647

llvm-svn: 152834
2012-03-15 20:48:18 +00:00
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