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356 Commits

Author SHA1 Message Date
Jim Grosbach 9036c5cf2b ARM VLD1/VST1 (one register, no writeback) assembly parsing and encoding. 
llvm-svn: 142583
 2011-10-20 15:04:25 +00:00
Jim Grosbach 8db25984a9 ARM VTBX (one register) assembly parsing and encoding. 
llvm-svn: 142581
 2011-10-20 14:48:50 +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 6918617e32 Yet more ARM NEON assembly parsing for the lane index operand. 
llvm-svn: 142416
 2011-10-18 20:21:17 +00:00
Jim Grosbach e9f204c197 ARM vmla/vmls assembly parsing for the lane index operand. 
llvm-svn: 142413
 2011-10-18 20:14:56 +00:00
Jim Grosbach 712f3670fd ARM vmov assembly parsing for the lane index operand. 
llvm-svn: 142412
 2011-10-18 20:10:47 +00:00
Jim Grosbach 611450071c ARM vmla/vmls assembly parsing for the lane index operand. 
llvm-svn: 142389
 2011-10-18 18:27:07 +00:00
Jim Grosbach c8eff0327a ARM vqdmulh assembly parsing for the lane index operand. 
llvm-svn: 142386
 2011-10-18 18:12:09 +00:00
Jim Grosbach e6fbca3a61 ARM vmul assembly parsing for the lane index operand. 
llvm-svn: 142381
 2011-10-18 18:01:52 +00:00
Jim Grosbach af26d7e280 ARM vqdmlal assembly parsing for the lane index operand. 
llvm-svn: 142365
 2011-10-18 17:16:30 +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 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
Jim Grosbach 2ad0dee309 Tidy up organization. 
llvm-svn: 142248
 2011-10-17 21:00:11 +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
Chad Rosier 61f92efb5c Remove the VMOVQQ pseudo instruction. 
llvm-svn: 138177
 2011-08-20 00:52:40 +00:00
Chad Rosier baf5538da9 Remove VMOVQQQQ pseudo instruction. 
llvm-svn: 138174
 2011-08-20 00:40:14 +00:00
Owen Anderson a6201f0a72 Specify a necessary fixed bit for VLD3DUP, and otherwise rearrange the Thumb2 NEON decoding hooks to bring us closer to correctness. 
llvm-svn: 137686
 2011-08-15 23:38:54 +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 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
Bob Wilson 8de11bab76 Add missing register constraint for some VLD3/VLD4 pseudo instructions. 
<rdar://problem/9878189>

llvm-svn: 136962
 2011-08-05 07:24:09 +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
Owen Anderson 9cf6f8a9b8 Remove unnecessary duplicate instruction definitions that simply overloaded the type of VEXT. This can be achieved with a Pat definition, and is much more disassembler friendly. 
llvm-svn: 135283
 2011-07-15 17:48:05 +00:00
Jim Grosbach 7ef7ddd2df Clean up a few 80 column violations. 
llvm-svn: 132946
 2011-06-13 22:54:22 +00:00
Tanya Lattner f0759ef271 Fix encoding for VEXTdf. 
llvm-svn: 132486
 2011-06-02 21:25:24 +00:00
Mon P Wang 92ff16b7bb Fixed MC encoding for index_align for VLD1/VST1 (single element from one lane) for size 32 
llvm-svn: 131085
 2011-05-09 17:47:27 +00:00
Mon P Wang 27f3330132 Fixed encoding for VEXTqf 
llvm-svn: 129101
 2011-04-07 19:56:12 +00:00
Owen Anderson abda3caf67 Somehow we managed to forget to encode the lane index for a large swathe of NEON instructions. With this fix, the entire test-suite passes with the Thumb integrated assembler. 
llvm-svn: 128587
 2011-03-30 23:45:29 +00:00
Cameron Zwarich 53dd03d537 Add a ARM-specific SD node for VBSL so that forms with a constant first operand 
can be recognized. This fixes <rdar://problem/9183078>.

llvm-svn: 128584
 2011-03-30 23:01:21 +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
Jim Grosbach 59eea670f8 ARM VDUPfd and VDUPfq can just be patterns. The instruction is the same 
as for VDUP32d and VDUP32q, respectively.

llvm-svn: 127489
 2011-03-11 20:44:08 +00:00
Jim Grosbach c77dea7f55 ARM VDUPLNfq and VDUPLNfd definitions can just be Pat<>s for VDUPLN32q 
and VDUPLN32d, respectively.

llvm-svn: 127486
 2011-03-11 20:31:17 +00:00
Jim Grosbach 24fe5e36ea ARM VREV64df and VREV64qf can just be patterns. The instruction is the same 
as for VREV64d32 and VREV64q32, respectively.

llvm-svn: 127485
 2011-03-11 20:18:05 +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 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
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
Bob Wilson e3ecd5fb9b Add patterns to use post-increment addressing for Neon VST1-lane instructions. 
llvm-svn: 126477
 2011-02-25 06:42:42 +00:00
Bob Wilson a609b8954e Change VLD3/4 and VST3/4 for quad registers to not update the address register. 
These operations are expanded to pairs of loads or stores, and the first one
uses the address register update to produce the address for the second one.
So far, the second load/store has also updated the address register, just
for convenience, since that output has never been used.  In anticipation of
actually supporting post-increment updates for these operations, this changes
the non-updating operations to use a non-updating load/store for the second
instruction.

llvm-svn: 125013
 2011-02-07 17:43:15 +00:00
Bob Wilson 42e67b5f73 Fix some NEON instruction itineraries. 
llvm-svn: 125012
 2011-02-07 17:43:12 +00:00
Bob Wilson 8265d56638 Add ARM patterns to match EXTRACT_SUBVECTOR nodes. 
Also fix an off-by-one in SelectionDAGBuilder that was preventing shuffle
vectors from being translated to EXTRACT_SUBVECTOR.
Patch by Tim Northover.

The test changes are needed to keep those spill-q tests from testing aligned
spills and restores.  If the only aligned stack objects are spill slots, we
no longer realign the stack frame.  Prior to this patch, an EXTRACT_SUBVECTOR
was legalized by loading from the stack, which created an aligned frame index.
Now, however, there is nothing except the spill slot in the stack frame, so
I added an aligned alloca.

llvm-svn: 122995
 2011-01-07 04:59:04 +00:00
Bob Wilson eda2a9ec89 Rearrange some Neon multiclasses. No functional changes. 
llvm-svn: 122119
 2010-12-18 00:42:58 +00:00
Bob Wilson 00871c71e9 Fix result type of Neon floating-point comparisons against zero. 
The result vector elements are always integers.  Radar 8782191.

llvm-svn: 122112
 2010-12-18 00:04:33 +00:00
Bob Wilson fa27a8621c Add Neon VCVT instructions for f32 <-> f16 conversions. 
Clang is now providing intrinsics for these and so we need to support them
in the backend.  Radar 8068427.

llvm-svn: 121902
 2010-12-15 22:14:12 +00:00
Bob Wilson 651eaa02b8 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.

llvm-svn: 121730
 2010-12-13 23:02:37 +00:00
Bob Wilson aae0862172 Simplify N2VSPat, removing some unnecessary type arguments. 
llvm-svn: 121729
 2010-12-13 23:02:31 +00:00
Bob Wilson 9c00c014ab Delete a line that I forgot to revert previously. 
llvm-svn: 121719
 2010-12-13 22:05:55 +00:00
Bob Wilson 9b3546d877 Use COPY_TO_REGCLASS instead of pseudo instructions for Neon FP patterns. 
Jakob Olesen suggested that we can avoid the need for separate pseudo
instructions here by using COPY_TO_REGCLASS in the patterns.  The pattern
gets pretty ugly but it seems to work well.  Partial fix for Radar 8711675.

llvm-svn: 121718
 2010-12-13 21:58:05 +00:00