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4929 Commits

Author SHA1 Message Date
Owen Anderson
64c500c7dd Fix decoding support for STREXD and LDREXD. 
llvm-svn: 137356
 2011-08-11 21:34:58 +00:00
Jim Grosbach
5c12d41c95 ARM STRH assembly parsing and encoding. 
llvm-svn: 137353
 2011-08-11 21:17:22 +00:00
Owen Anderson
4618d77bcd Fix decoding for indexed STRB and LDRB. Fixes <rdar://problem/9926161>. 
llvm-svn: 137347
 2011-08-11 20:47:56 +00:00
Jim Grosbach
15351f4f22 Tidy up. Remove unused template parameter. 
llvm-svn: 137345
 2011-08-11 20:41:13 +00:00
Owen Anderson
1ec4fcb5d3 Improve operand validation for Thumb2 addressing modes. 
llvm-svn: 137344
 2011-08-11 20:40:40 +00:00
Jim Grosbach
81b2835f83 ARM STRD assembly parsing and encoding. 
llvm-svn: 137342
 2011-08-11 20:28:23 +00:00
Owen Anderson
73e7d34732 Continue to tighten decoding by performing more operand validation. 
llvm-svn: 137340
 2011-08-11 20:21:46 +00:00
Jim Grosbach
92a220276d Tidy up. 
llvm-svn: 137339
 2011-08-11 20:13:35 +00:00
Jim Grosbach
bfc85134c2 ARM STRBT assembly parsing and encoding. 
llvm-svn: 137337
 2011-08-11 20:04:56 +00:00
Jim Grosbach
e6bd3a1ab8 ARM STR(immediate) assembly parsing and encoding. 
llvm-svn: 137331
 2011-08-11 19:22:40 +00:00
Owen Anderson
63ccfdccd1 Tighten decoding of addrmode2 instructions to reject more UNPREDICTABLE cases. 
llvm-svn: 137325
 2011-08-11 19:00:18 +00:00
Owen Anderson
decc5fcced 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
707fcaca0e 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
8d6b9f063f 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
9717a9c0d3 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
abaaf4513f 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
5322f1ea74 ARM LDRT assembly parsing and encoding. 
llvm-svn: 137282
 2011-08-10 23:43:54 +00:00
Jim Grosbach
9fd458fd63 Tidy up. 80 columns. 
llvm-svn: 137277
 2011-08-10 23:23:47 +00:00
Jim Grosbach
e0ccd6b34e ARM LDRH(immediate) assembly parsing and encoding support. 
llvm-svn: 137260
 2011-08-10 22:42:16 +00:00
Jim Grosbach
4ad2dc8bb2 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
e19952cfbb Fix typo. Not quite sure how that slipped in there. 
llvm-svn: 137245
 2011-08-10 20:49:18 +00:00
Jim Grosbach
bbef0044c8 ARM LDRD(immediate) assembly parsing and encoding support. 
llvm-svn: 137244
 2011-08-10 20:29:19 +00:00
Owen Anderson
0fde7a84ee Add initial support for decoding NEON instructions in Thumb2 mode. 
llvm-svn: 137236
 2011-08-10 19:01:10 +00:00
Owen Anderson
59d627c17a Tabs --> spaces. 
llvm-svn: 137225
 2011-08-10 17:38:05 +00:00
Owen Anderson
0819cf208f Cleanups based on Nick Lewycky's feedback. 
llvm-svn: 137224
 2011-08-10 17:36:48 +00:00
Owen Anderson
0d68079e26 Rewrite some ARM InstrInfo functions to be most accepting of arbitrary register subclasses. Hopefully this fixes some buildbots. 
llvm-svn: 137223
 2011-08-10 17:21:20 +00:00
Rafael Espindola
45cd7316b5 Add support for the R and Q constraints. 
llvm-svn: 137217
 2011-08-10 16:26:42 +00:00
Owen Anderson
87b5ce880a Push GPRnopc through a large number of instruction definitions to tighten operand decoding. 
llvm-svn: 137189
 2011-08-10 00:03:03 +00:00
Jakob Stoklund Olesen
3ab24a9494 Promote VMOVS to VMOVD when possible. 
On Cortex-A8, we use the NEON v2f32 instructions for f32 arithmetic. For
better latency, we also send D-register copies down the NEON pipeline by
translating them to vorr instructions.

This patch promotes even S-register copies to D-register copies when
possible so they can also go down the NEON pipeline.  Example:

        vldr.32 s0, LCPI0_0
    loop:
        vorr    d1, d0, d0
    loop2:
        ...
        vadd.f32        d1, d1, d16

The vorr instruction looked like this after regalloc:

    %S2<def> = COPY %S0, %D1<imp-def>

Copies involving odd S-registers, and copies that don't define the full
D-register are left alone.

llvm-svn: 137182
 2011-08-09 23:41:44 +00:00
Owen Anderson
b717d71aa1 Tighten operand checking of register-shifted-register operands. 
llvm-svn: 137180
 2011-08-09 23:33:27 +00:00
Owen Anderson
62faf296dd Tighten operand checking on memory barrier instructions. 
llvm-svn: 137176
 2011-08-09 23:25:42 +00:00
Owen Anderson
869ce85500 Tighten operand checking on CPS instructions. 
llvm-svn: 137172
 2011-08-09 23:05:39 +00:00
Owen Anderson
8ad37f68a2 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
ca48bdfd5b 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
4232cf9141 Silence an false-positive warning. 
llvm-svn: 137154
 2011-08-09 21:38:14 +00:00
Owen Anderson
09d5afaefa Don't generate the old-style disassembler in CMake builds either. 
llvm-svn: 137153
 2011-08-09 21:36:11 +00:00
Benjamin Kramer
ed2b147693 The new ARM disassembler disassembles "bx lr" as a special BX_ret instruction so target specific analysis isn't needed anymore. 
llvm-svn: 137151
 2011-08-09 21:34:19 +00:00
Owen Anderson
2443a29f51 Don't continue generating the old-style decoder file. 
llvm-svn: 137150
 2011-08-09 21:30:29 +00:00
Jim Grosbach
d47981e34a ARM fix typo in pre-indexed store lowering. 
rdar://9915869

llvm-svn: 137148
 2011-08-09 21:22:41 +00:00
Owen Anderson
433265b44e Attempt to fix CMake build. 
llvm-svn: 137147
 2011-08-09 21:09:59 +00:00
Owen Anderson
2aa4c7e391 Tighten Thumb1 branch predicate decoding. 
llvm-svn: 137146
 2011-08-09 21:07:45 +00:00
Owen Anderson
ffe1c55752 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
Renato Golin
dc14179294 Emitting ARM build attributes and values as ULEB, rather than char. 
llvm-svn: 137115
 2011-08-09 09:50:10 +00:00
Jim Grosbach
d6da18cf19 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
Owen Anderson
5b0611a4eb Thumb1 BL instructions encoding 22 bits of displacement, not 21. 
llvm-svn: 137073
 2011-08-08 23:25:22 +00:00
Jakob Stoklund Olesen
c239010f17 Implement isLoadFromStackSlotPostFE and isStoreToStackSlotPostFE for ARM. 
They improve the verbose assembly.

llvm-svn: 137069
 2011-08-08 21:45:32 +00:00
Jim Grosbach
ffac5ceead ARM load/store label parsing. 
Allow labels for load/store instructions when parsing. There's encoding
issues, still, so this doesn't work all the way through, yet.

llvm-svn: 137064
 2011-08-08 20:59:31 +00:00
Owen Anderson
e4638b5b2d Fix encodings for Thumb ASR and LSR immediate operands. They encode the range 1-32, with 32 encoded as 0. 
llvm-svn: 137062
 2011-08-08 20:42:17 +00:00
Eli Friedman
7a34419c6f Fix up the patterns for SXTB, SXTH, UXTB, and UXTH so that they are correctly active without HasT2ExtractPack. PR10611. 
llvm-svn: 137061
 2011-08-08 19:49:37 +00:00
Benjamin Kramer
8c3f23ec80 Add MCInstrAnalysis class. This allows the targets to specify own versions of MCInstrDescs functions. 
- Add overrides for ARM.
- Teach llvm-objdump to use this instead of plain MCInstrDesc.

llvm-svn: 137059
 2011-08-08 18:56:44 +00:00