org.graalvm.compiler.asm.aarch64

Class AArch64ASIMDAssembler.ASIMDImmediateTable

java.lang.Object

org.graalvm.compiler.asm.aarch64.AArch64ASIMDAssembler.ASIMDImmediateTable

Enclosing class:

AArch64ASIMDAssembler

public static class AArch64ASIMDAssembler.ASIMDImmediateTable
extends Object

Calculates and maintains a mapping of all possible ASIMD immediate values.

ASIMD immediates use the form op:abc:cmode:defgh with bits 29:18-16:15-12:9-5. How these bits are expanded into 64-bit values is codified in shared/functions/vectorAdvSIMDExpandImm (J1-8208).

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	AArch64ASIMDAssembler.ASIMDImmediateTable.BitValues

Field Summary

Fields

Modifier and Type	Field and Description
static org.graalvm.compiler.asm.aarch64.AArch64ASIMDAssembler.ASIMDImmediateTable.ImmediateEncodings[]	IMMEDIATE_TABLE

Constructor Summary

Constructors

Constructor and Description
ASIMDImmediateTable()

Method Summary

Modifier and Type	Method and Description
static int	getEncoding(long imm, AArch64ASIMDAssembler.ImmediateOp op) Returns the instruction encoding for immediate using the provided ImmediateOp mode.
static boolean	isEncodable(long imm, AArch64ASIMDAssembler.ImmediateOp op) Tests whether an immediate can be encoded within an ASIMD instruction using the provided ImmediateOp mode.

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

IMMEDIATE_TABLE

public static final org.graalvm.compiler.asm.aarch64.AArch64ASIMDAssembler.ASIMDImmediateTable.ImmediateEncodings[] IMMEDIATE_TABLE

Constructor Detail

ASIMDImmediateTable

public ASIMDImmediateTable()

Method Detail

isEncodable

public static boolean isEncodable(long imm,
                                  AArch64ASIMDAssembler.ImmediateOp op)

Tests whether an immediate can be encoded within an ASIMD instruction using the provided ImmediateOp mode.

getEncoding

public static int getEncoding(long imm,
                              AArch64ASIMDAssembler.ImmediateOp op)

Returns the instruction encoding for immediate using the provided ImmediateOp mode.