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
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three or four registers and VLD2 (multiple two-element structures) which loads
memory into two double-spaced registers.
A8.6.307 & A8.6.310
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since it has no pattern, there's not much point in distinguishing an "N2VS"
class for intrinsics anyway.
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* 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.
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with the rest of the assembly output, is easier to read, and matches the
expected output for gcc's Neon tests.
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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.
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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.
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This fixes the NEON asm printing so the "predicate" field is printed between the opcode and the data type suffix.
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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.
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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.
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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.
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a default value of zero. This is important for decoding the instructions.
Patch by Johnny Chen, with some changes from me, too.
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Leave Inst{11-8}, which represents the starting byte index of the extracted
result in the concatenation of the operands and is left unspecified.
Patch by Johnny Chen.
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