Commit Graph

138 Commits

Author SHA1 Message Date
Bob Wilson 89ba42c4ce Add instructions for double-spaced VST3 and VST4 without address register
writeback, and refactor the existing double-spaced VST2 instructions.
These are only for the disassembler since codegen doesn't use them, at
least for now.

llvm-svn: 99090
2010-03-20 21:15:48 +00:00
Bob Wilson 322cbff3d3 Add VST1 instructions with address register writeback.
llvm-svn: 99083
2010-03-20 20:54:36 +00:00
Bob Wilson 9152d96dfb Add instruction variants for VLD2, VLD3, and VLD4 "load-lane" operations with
address register writeback.

llvm-svn: 99082
2010-03-20 20:47:18 +00:00
Bob Wilson 9b1584245a Tidy some more comments and whitespace.
llvm-svn: 99081
2010-03-20 20:39:53 +00:00
Bob Wilson cf324658f6 Add variants of VLD2, VLD3 and VLD4 with address register writeback, and
rewrite the existing VLD3 and VLD4 instructions to use the same classes as
the others.

llvm-svn: 99080
2010-03-20 20:10:51 +00:00
Bob Wilson 7ee900da22 Tidy some comments and whitespace for consistency.
llvm-svn: 99078
2010-03-20 19:57:03 +00:00
Bob Wilson c0795f8b87 Rename some instructions for consistency and sanity: use "_UPD" suffix for
load/stores with address register writeback, and use "odd" suffix to distinguish
instructions to access odd numbered registers (instead of "a" and "b").
No functional changes.

llvm-svn: 99066
2010-03-20 18:35:24 +00:00
Bob Wilson d092669b48 Add instructions for double-spaced VLD3 and VLD4 without address register
writeback, and refactor the existing double-spaced VLD2 instructions.
These are only for the disassembler since codegen doesn't use them, at
least for now.

llvm-svn: 99065
2010-03-20 18:14:26 +00:00
Bob Wilson 496766cb56 Add VLD1 instructions with address register writeback.
llvm-svn: 99062
2010-03-20 17:59:03 +00:00
Bob Wilson e4191e719b Revert this change, since it was causing ARM performance regressions.
--- Reverse-merging r98889 into '.':
U    lib/Target/ARM/ARMInstrNEON.td
U    lib/Target/ARM/ARMISelLowering.h
U    lib/Target/ARM/ARMInstrInfo.td
U    lib/Target/ARM/ARMInstrVFP.td
U    lib/Target/ARM/ARMISelLowering.cpp
U    lib/Target/ARM/ARMInstrFormats.td

llvm-svn: 99010
2010-03-19 22:51:32 +00:00
Anton Korobeynikov f11aa9e7b4 Get rid of target-specific fp <-> int nodes when still I'm here.
llvm-svn: 98889
2010-03-18 22:35:45 +00:00
Bob Wilson a7f236ae3a Refactor NEON ld/st instructions to hardcode class arguments that are constants.
No functional changes.

llvm-svn: 98860
2010-03-18 20:18:39 +00:00
Johnny Chen 274a0d3794 Revert 98745 with respect to the addition of NEONFrm subformats for disassembly.
There is a better way coming up.

llvm-svn: 98777
2010-03-17 23:26:50 +00:00
Johnny Chen 8f3004cff2 Added sub-formats to the NeonI/NeonXI instructions to further refine the NEONFrm
instructions to help disassembly.

We also changed the output of the addressing modes to omit the '+' from the
assembler syntax #+/-<imm> or +/-<Rm>.  See, for example, A8.6.57/58/60.

And modified test cases to not expect '+' in +reg or #+num.  For example,

; CHECK:       ldr.w	r9, [r7, #28]

llvm-svn: 98745
2010-03-17 17:52:21 +00:00
Bob Wilson c7ba918b84 Revert 98683. It is breaking something in the disassembler.
llvm-svn: 98692
2010-03-16 23:01:13 +00:00
Bob Wilson c953bca10b Remove redundant writeback flag from ARM address mode 6. Also remove the
optional register update argument, which is currently unused -- when we add
support for that, it can just be a separate operand.

llvm-svn: 98683
2010-03-16 21:44:40 +00:00
Bob Wilson 1b4e8cc69c --- Reverse-merging r98637 into '.':
U    test/CodeGen/ARM/tls2.ll
U    test/CodeGen/ARM/arm-negative-stride.ll
U    test/CodeGen/ARM/2009-10-30.ll
U    test/CodeGen/ARM/globals.ll
U    test/CodeGen/ARM/str_pre-2.ll
U    test/CodeGen/ARM/ldrd.ll
U    test/CodeGen/ARM/2009-10-27-double-align.ll
U    test/CodeGen/Thumb2/thumb2-strb.ll
U    test/CodeGen/Thumb2/ldr-str-imm12.ll
U    test/CodeGen/Thumb2/thumb2-strh.ll
U    test/CodeGen/Thumb2/thumb2-ldr.ll
U    test/CodeGen/Thumb2/thumb2-str_pre.ll
U    test/CodeGen/Thumb2/thumb2-str.ll
U    test/CodeGen/Thumb2/thumb2-ldrh.ll
U    utils/TableGen/TableGen.cpp
U    utils/TableGen/DisassemblerEmitter.cpp
D    utils/TableGen/RISCDisassemblerEmitter.h
D    utils/TableGen/RISCDisassemblerEmitter.cpp
U    Makefile.rules
U    lib/Target/ARM/ARMInstrNEON.td
U    lib/Target/ARM/Makefile
U    lib/Target/ARM/AsmPrinter/ARMInstPrinter.cpp
U    lib/Target/ARM/AsmPrinter/ARMAsmPrinter.cpp
U    lib/Target/ARM/AsmPrinter/ARMInstPrinter.h
D    lib/Target/ARM/Disassembler
U    lib/Target/ARM/ARMInstrFormats.td
U    lib/Target/ARM/ARMAddressingModes.h
U    lib/Target/ARM/Thumb2ITBlockPass.cpp

llvm-svn: 98640
2010-03-16 16:59:47 +00:00
Johnny Chen 3d9327bd06 Initial ARM/Thumb disassembler check-in. It consists of a tablgen backend
(RISCDisassemblerEmitter) which emits the decoder functions for ARM and Thumb,
and the disassembler core which invokes the decoder function and builds up the
MCInst based on the decoded Opcode.

Added sub-formats to the NeonI/NeonXI instructions to further refine the NEONFrm
instructions to help disassembly.

We also changed the output of the addressing modes to omit the '+' from the
assembler syntax #+/-<imm> or +/-<Rm>.  See, for example, A8.6.57/58/60.

And modified test cases to not expect '+' in +reg or #+num.  For example,

; CHECK:       ldr.w	r9, [r7, #28]

llvm-svn: 98637
2010-03-16 16:36:54 +00:00
Chris Lattner ce81b3c120 fix an ambiguous pattern, contrary to expectations, scalar_to_vector
doesn't have a type constraint on the scalar because we don't have
an 'sAny' type.

llvm-svn: 98527
2010-03-15 00:52:43 +00:00
Bob Wilson 27cce1c0b6 Remove obsolete comments. VLDM is implemented in ARMInstrVFP.td.
llvm-svn: 98395
2010-03-12 22:00:08 +00:00
Chris Lattner b8a7427636 fix a bunch of partially ambiguous patterns on ARM. As an
example, this:

(set DPR:$dst, (fsub (fneg (fmul DPR:$a, DPR:$b)), DPR:$dstin))

is ambiguous because DPR contains both f64 and v2f32.  tblgen
currently accidentally picks f64 because it's first in the 
regclass.

llvm-svn: 97955
2010-03-08 18:51:21 +00:00
Johnny Chen 86ba44a4c7 Added Vector Swap (VSWPd and VSWPq) instructions for disassembly only.
A8.6.405

llvm-svn: 97052
2010-02-24 20:06:07 +00:00
Johnny Chen 03ac201ad9 Fixed typo of opcodestr, should be "vst1", not "vld1".
llvm-svn: 97044
2010-02-24 18:00:40 +00:00
Johnny Chen d5c472d811 Added for disassembly VST1 (multiple single elements) which stores elements to
memory from three or four registers and VST2 (multiple two-element structures)
which stores to memory from two double-spaced registers.

A8.6.391 & A8.6.393

llvm-svn: 97018
2010-02-24 02:57:20 +00:00
Johnny Chen b14a5c52bc Added for disassembly VLD1 (multiple single elements) which loads memory into
three or four registers and VLD2 (multiple two-element structures) which loads
memory into two double-spaced registers.

A8.6.307 & A8.6.310

llvm-svn: 96980
2010-02-23 20:51:23 +00:00
Johnny Chen 21dbd6f449 Added versions of VCGE, VCGT, VCLE, and VCLT NEON instructions which compare to
(immediate #0) for disassembly only.

A8.6.283, A8.6.285, A8.6.287, A8.6.290

llvm-svn: 96856
2010-02-23 01:42:58 +00:00
Johnny Chen 886915e3bb Added VCEQ (immediate #0) NEON instruction for disassembly only.
A8.6.281

llvm-svn: 96838
2010-02-23 00:33:12 +00:00
Bob Wilson c6c13a3515 Use NEON vmin/vmax instructions for floating-point selects.
Radar 7461718.

llvm-svn: 96572
2010-02-18 06:05:53 +00:00
Bob Wilson cb2deb2aaf Remove the NEON N2VSInt instruction class: it's only used in one place and
since it has no pattern, there's not much point in distinguishing an "N2VS"
class for intrinsics anyway.

llvm-svn: 96525
2010-02-17 22:42:54 +00:00
Bob Wilson 004d280d5e More cleanup for NEON:
* Use "S" abbreviation for scalar single FP registers in class and pattern
names, instead of keeping the "D" (for "double") abbreviation and tacking on
an "s" elsewhere in the name.
* Move the scalar single FP register classes and patterns to be more
consistent with other definitions in the file.
* Rename "VNEGf32d" definition to "VNEGfd" for consistency.
* Deleted the N2VDIntsPat pattern; N2VSPat is good enough.

llvm-svn: 96521
2010-02-17 22:23:11 +00:00
Bob Wilson 9e89907ed5 Wrap lines to 80 columns and generally try to clean up whitespace and
indentation.  No functional changes.

llvm-svn: 96418
2010-02-17 00:31:29 +00:00
Johnny Chen 1215c774f2 Add VBIF/VBIT for disassembly only.
A8.6.279

llvm-svn: 95713
2010-02-09 23:05:23 +00:00
Bob Wilson 7430a98619 Emit spaces after commas in Neon register lists. This is more consistent
with the rest of the assembly output, is easier to read, and matches the
expected output for gcc's Neon tests.

llvm-svn: 93703
2010-01-18 01:24:43 +00:00
Bob Wilson 9349437c65 The Neon "vtst" instruction takes a suffix that is the element size alone --
adding an "i" to the suffix, indicating that the elements are integers, is
accepted but not part of the standard syntax.  This helps us pass a few more
of the Neon tests from gcc.

llvm-svn: 93677
2010-01-17 06:35:17 +00:00
Johnny Chen 86fc920742 For VLDM/VSTM (Advanced SIMD), set encoding bits Inst{11-8} to 0b1011.
llvm-svn: 90243
2009-12-01 17:37:06 +00:00
Johnny Chen ee536b0ea4 For VMOV (immediate), make some of the encoding bits (cmode and op) unspecified.
For VMOVv*i[16,32], op bit is don't care, and some cmode bits vary depending on
the immediate values.

Ref: Table A7-15 Modified immediate values for Advanced SIMD instructions.
llvm-svn: 90173
2009-12-01 00:02:02 +00:00
Evan Cheng 738a97a1db Massive refactoring of NEON instructions. Separate opcode from data size specifier suffix, move \t up stream to instruction format, and fix more 80 column violations.
This fixes the NEON asm printing so the "predicate" field is printed between the opcode and the data type suffix.

llvm-svn: 89706
2009-11-23 21:57:23 +00:00
Johnny Chen b6528d3244 Partially revert r84730 by removing N2VDup from ARMInstrFormats.td and modifying
VDUPLND and VDUPLNQ to derive from N2V instead of N2VDup.  VDUPLND and VDUPLNQ
now expect op19_18 and op17_16 as the first two args.

llvm-svn: 89699
2009-11-23 21:00:43 +00:00
Johnny Chen 5ad7416260 Revert r84572 by removing N3VImm from ARMInstrFormats.td now that we can specify
{?,?,?,?} as op11_8 for VEXTd and VEXTq.

llvm-svn: 89693
2009-11-23 20:09:13 +00:00
Johnny Chen e97457afbc Partially revert r89377 by removing NLdStLN class definition from
ARMInstrFormats.td and fixing VLD[234]LN* and VST[234]LN* to derive from NLdSt
instead of NLdStLN.

llvm-svn: 89684
2009-11-23 18:16:16 +00:00
Johnny Chen ebc60ef80c Make it clear that the index bit(s) of Vector Get Lane and Vector Set Lane
should be left unspecified now that Bob Wilson has fixed pr5470.

llvm-svn: 89676
2009-11-23 17:48:17 +00:00
Evan Cheng a33fc86be3 Add predicate operand to NEON instructions. Fix lots (but not all) 80 col violations in ARMInstrNEON.td.
llvm-svn: 89542
2009-11-21 06:21:52 +00:00
Johnny Chen b3b8209d77 Added NLdStLN which is similar to NLdSt with the exception that op7_4 is not
fully specified at this level.  Subclasses of NLdStLN can specify selective
bit(s) for Inst{7-4}, as is done for VLD[234]LN* and VST[234]LN* inside
ARMInstrNEON.td.

llvm-svn: 89377
2009-11-19 19:20:17 +00:00
Evan Cheng e129dd311e Use table to separate opcode from operands.
llvm-svn: 86965
2009-11-12 07:16:34 +00:00
Jim Grosbach d7cf55cd0e Use Unified Assembly Syntax for the ARM backend.
llvm-svn: 86494
2009-11-09 00:11:35 +00:00
Bob Wilson d95ccd6c4d Print VMOV (immediate) operands as hexadecimal values. Apple's assembler
will not accept negative values for these.  LLVM's default operand printing
sign extends values, so that valid unsigned values appear as negative
immediates.  Print all VMOV immediate operands as hex values to resolve this.
Radar 7372576.

llvm-svn: 86301
2009-11-06 23:33:28 +00:00
Anton Korobeynikov 0f38d989bd Do not infer the target type for COPY_TO_REGCLASS from dest regclass, this won't work if it can contain several types. Require explicit result type for the node for now. This fixes PR5364.
PS: It seems that blackfin usage of copy_to_regclass is completely bogus!
llvm-svn: 85766
2009-11-02 00:11:39 +00:00
Jim Grosbach 5cba8de2c8 vml[as].f32 cause stalls in following advanced SIMD instructions. Avoid using
them for scalar floating point operations for now.

llvm-svn: 85697
2009-10-31 22:57:36 +00:00
Bob Wilson 0db964a3a0 Fix NEON VST2LN instruction encoding.
Patch by Johnny Chen.

llvm-svn: 84767
2009-10-21 17:54:01 +00:00
Bob Wilson 87671da29a Revert 84732. It was the wrong fix.
llvm-svn: 84766
2009-10-21 17:52:34 +00:00