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63 Commits

Author SHA1 Message Date
Chris Lattner
7a2bdde0a0 Fix a ton of comment typos found by codespell. Patch by 
Luis Felipe Strano Moraes!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129558 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-15 05:18:47 +00:00
Johnny Chen
de16508955 Thumb disassembler was erroneously rejecting "blx sp" instruction. 
rdar://problem/9267838


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129320 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-04-11 23:33:30 +00:00
Johnny Chen
ef74e9ab40 delegate the disassembly of t2ADR to the more generic t2ADDri12/t2SUBri12 instructions, and add a test case for that. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128249 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-25 00:17:42 +00:00
Johnny Chen
8c13335c9a 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128247 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-24 23:42:31 +00:00
Johnny Chen
1090d7711b 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128246 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-24 23:21:14 +00:00
Johnny Chen
e6d69e7dbe 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128234 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-24 20:42:48 +00:00
Jim Grosbach
7d3a16a6f8 Remove no-longer-correct special case for disasm of ARM BL instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127517 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-12 01:05:29 +00:00
Jim Grosbach
72422d38ba Pseudo-ize the ARM 'B' instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127510 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-11 23:24:15 +00:00
Jim Grosbach
3c5edaaf59 Remove dead code. These ARM instruction definitions no longer exist. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127509 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-11 23:15:02 +00:00
Jim Grosbach
5380bbf606 Remove dead code. These ARM instruction definitions no longer exist. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127508 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-11 23:11:41 +00:00
Jim Grosbach
f219f3135d Pseudo-ize VMOVDcc and VMOVScc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127506 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-11 23:09:50 +00:00
Jim Grosbach
b9cf5f8763 Remove dead code. These ARM instruction definitions don't exist. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127491 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-11 20:51:07 +00:00
Jim Grosbach
958108ad14 ARM VDUPfd and VDUPfq can just be patterns. The instruction is the same 
as for VDUP32d and VDUP32q, respectively.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127489 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-11 20:44:08 +00:00
Jim Grosbach
81bb6551e6 Remove dead code. These ARM instruction definitions don't exist. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127488 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-11 20:38:18 +00:00
Jim Grosbach
8b8515c225 ARM VDUPLNfq and VDUPLNfd definitions can just be Pat<>s for VDUPLN32q 
and VDUPLN32d, respectively.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127486 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-11 20:31:17 +00:00
Jim Grosbach
1558df79b4 ARM VREV64df and VREV64qf can just be patterns. The instruction is the same 
as for VREV64d32 and VREV64q32, respectively.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127485 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-11 20:18:05 +00:00
Jim Grosbach
7e0e82dcd5 Tidy up since ARM MOVCCi and MOVCCi16 are now pseudos. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127445 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-11 01:16:49 +00:00
Jim Grosbach
d4a16ad85d Properly pseudo-ize MOVCCr and MOVCCs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127434 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-10 23:56:09 +00:00
Jim Grosbach
5e97338c8d Memory barrier instructions don't need special handling in tblgen anymore. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127419 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-10 19:05:48 +00:00
Bob Wilson
1473f35c47 TableGen should not ignore BX instructions for the ARM disassembler. pr9368. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126931 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-03 07:19:52 +00:00
Bob Wilson
181d3fe727 pr9367: Add missing predicated BLX instructions. 
Patch by Jyun-Yan You, with some minor adjustments and a testcase from me.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126915 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-03 01:41:01 +00:00
Owen Anderson
d8c87888a7 Add FixedLenDecoderEmitter, the skeleton of a new disassembler emitter for fixed-length instruction encodings. 
A major part of its (eventual) goal is to support a much cleaner separation between disassembly callbacks
provided by the target and the disassembler emitter itself, i.e. not requiring hardcoding of knowledge in tblgen
like the existing disassembly emitters do.

The hope is that some day this will allow us to replace the existing non-Thumb ARM disassembler and remove
some of the hacks the old one introduced to tblgen.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125966 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-18 21:51:29 +00:00
Bruno Cardoso Lopes
a461d42228 Add support for parsing and encoding ARM's official syntax for the BFI instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123770 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-18 20:45:56 +00:00
Jim Grosbach
d40963c406 Add support for MC-ized encoding of tLEApcrel and tLEApcrelJT. rdar://8755755 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121798 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-14 22:28:03 +00:00
Bob Wilson
4711d5cda3 Remove the rest of the *_sfp Neon instruction patterns. 
Use the same COPY_TO_REGCLASS approach as for the 2-register *_sfp instructions.
This change made a big difference in the code generated for the
CodeGen/Thumb2/cross-rc-coalescing-2.ll test: The coalescer is still doing
a fine job, but some instructions that were previously moved outside the loop
are not moved now.  It's using fewer VFP registers now, which is generally
a good thing, so I think the estimates for register pressure changed and that
affected the LICM behavior.  Since that isn't obviously wrong, I've just
changed the test file.  This completes the work for Radar 8711675.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121730 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-13 23:02:37 +00:00
Bill Wendling
6a97ed34ed Merge DEBUG statements. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121660 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-13 01:03:49 +00:00
Chris Lattner
67db883487 eliminate the Records global variable, patch by Garrison Venn! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121659 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-13 00:23:57 +00:00
Jim Grosbach
bf149c75b3 Remove reference to the CMPz instruction patterns for ARM. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121180 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-07 20:44:33 +00:00
Bill Wendling
6cfab3748c I did it wrong. Don't disregard these encodings here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120786 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-03 02:25:59 +00:00
Bill Wendling
b40a90597b Ignore decode table conflicts in the tMOVgpr2tgpr, tMOVgpr2gpr, and tMOVtgpr2gpr 
instructions. They are handled as special moves, but encoded as a normal move.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120779 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-12-03 01:55:30 +00:00
Jim Grosbach
12822af16a The VLDMQ/VSTMQ instructions are reprented as true Pseudo-insts now (i.e., 
no extra encoding information), so we no longer need to special case them
here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120444 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 19:08:32 +00:00
Jim Grosbach
37cc2f121d Tidy up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120443 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 19:00:13 +00:00
Jim Grosbach
b6e1e67b80 Delete a few no longer needed references to pseudos. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120441 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-30 18:56:13 +00:00
Jim Grosbach
5ca66696e7 Pseudo-ize Thumb2 jump tables with explicit MC lowering to the raw 
instructions. This simplifies instruction printing and disassembly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120333 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 22:37:40 +00:00
Jim Grosbach
d092a87ba3 Rename t2 TBB and TBH instructions to reference that they encode the jump table 
data. Next up, pseudo-izing them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120320 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 21:28:32 +00:00
Michael J. Spencer
1f6efa3996 Merge System into Support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120298 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-29 18:16:10 +00:00
Bill Wendling
73fe34a3ee Encode the multi-load/store instructions with their respective modes ('ia', 
'db', 'ib', 'da') instead of having that mode as a separate field in the
instruction. It's more convenient for the asm parser and much more readable for
humans.
<rdar://problem/8654088>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119310 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-16 01:16:36 +00:00
Chris Lattner
c240bb0ede factor the operand list (and related fields/operations) out of 
CodeGenInstruction into its own helper class.  No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117893 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-11-01 04:03:32 +00:00
Jim Grosbach
bb16824dc3 A few 80 column cleanups 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116069 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-08 18:13:57 +00:00
Jim Grosbach
0e99219e03 Move checking for t2MOVCCi16 to the right place. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115994 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 22:14:01 +00:00
Nick Lewycky
366b1e1f3f Fix typo in comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115986 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 21:55:16 +00:00
Jim Grosbach
a4257162be Allow use of the 16-bit literal move instruction in CMOVs for Thumb2 mode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115890 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 00:53:56 +00:00
Jim Grosbach
3bbdcea49a Allow use of the 16-bit literal move instruction in CMOVs for ARM mode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115884 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-07 00:42:42 +00:00
Jim Grosbach
4fc92e02d7 Now that VDUPfqf and VDUPfdfare properly pseudos, nuke the special handling. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115841 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-10-06 21:17:07 +00:00
Bob Wilson
dbb350a5c7 Fix a comment typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112302 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-27 21:56:59 +00:00
Bob Wilson
9a1c189d9e Add a separate ARM instruction format for Saturate instructions. 
(I discovered 2 more copies of the ARM instruction format list, bringing the
total to 4!!  Two of them were already out of sync.  I haven't yet gotten into
the disassembler enough to know the best way to fix this, but something needs
to be done.)  Add support for encoding these instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110754 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-11 00:01:18 +00:00
Dale Johannesen
7835f1fcdb Changes to ARM tail calls, mostly cosmetic. 
Add explicit testcases for tail calls within the same module.
Duplicate some code to humor those who think .w doesn't apply on ARM.
Leave this disabled on Thumb1, and add some comments explaining why it's hard
and won't gain much.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107851 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-08 01:18:23 +00:00
Dale Johannesen
10416803c1 An attempt to fix the problem Anton reported with 
ARM tail calls.  Don't know if it works, but it
doesn't break Darwin.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106309 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 20:44:28 +00:00
Dale Johannesen
6470a116f1 Next round of tail call changes. Register used in a tail 
call must not be callee-saved; following x86, add a new
regclass to represent this.  Also fixes a couple of bugs.
Still disabled by default; Thumb doesn't work yet.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106053 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 22:08:33 +00:00
Dale Johannesen
51e28e6348 Early implementation of tail call for ARM. 
A temporary flag -arm-tail-calls defaults to off,
so there is no functional change by default.
Intrepid users may try this; simple cases work
but there are bugs.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105413 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-03 21:09:53 +00:00