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package org.graalvm.compiler.asm.amd64;

import static org.graalvm.compiler.asm.amd64.AVXKind.AVXSize.DWORD;
import static org.graalvm.compiler.asm.amd64.AVXKind.AVXSize.QWORD;
import static org.graalvm.compiler.asm.amd64.AVXKind.AVXSize.XMM;
import static org.graalvm.compiler.asm.amd64.AVXKind.AVXSize.YMM;
import static org.graalvm.compiler.asm.amd64.AVXKind.AVXSize.ZMM;

import jdk.vm.ci.meta.Value;
import org.graalvm.compiler.debug.GraalError;

import jdk.vm.ci.amd64.AMD64Kind;

Helper methods for dealing with AVX and SSE AMD64Kinds.
/** * Helper methods for dealing with AVX and SSE {@link AMD64Kind AMD64Kinds}. */
public final class AVXKind { public enum AVXSize { DWORD, QWORD, XMM, YMM, ZMM; public int getBytes() { switch (this) { case DWORD: return 4; case QWORD: return 8; case XMM: return 16; case YMM: return 32; case ZMM: return 64; default: return 0; } } } private AVXKind() { } public static AVXSize getRegisterSize(Value a) { AMD64Kind kind = (AMD64Kind) a.getPlatformKind(); if (kind.isXMM()) { return getRegisterSize(kind); } else { return XMM; } } public static AVXSize getDataSize(AMD64Kind kind) { assert kind.isXMM() : "unexpected kind " + kind; switch (kind.getSizeInBytes()) { case 4: return DWORD; case 8: return QWORD; case 16: return XMM; case 32: return YMM; case 64: return ZMM; default: throw GraalError.shouldNotReachHere("unsupported kind: " + kind); } } public static AVXSize getRegisterSize(AMD64Kind kind) { assert kind.isXMM() : "unexpected kind " + kind; int size = kind.getSizeInBytes(); if (size > 32) { return ZMM; } else if (size > 16) { return YMM; } else { return XMM; } } public static AMD64Kind changeSize(AMD64Kind kind, AVXSize newSize) { return getAVXKind(kind.getScalar(), newSize); } public static AMD64Kind getAVXKind(AMD64Kind base, AVXSize size) { for (AMD64Kind ret : AMD64Kind.values()) { if (ret.getScalar() == base && ret.getSizeInBytes() == size.getBytes()) { return ret; } } throw GraalError.shouldNotReachHere(String.format("unsupported vector kind: %s x %s", size, base)); } public static AMD64Kind getAVXKind(AMD64Kind base, int length) { for (AMD64Kind ret : AMD64Kind.values()) { if (ret.getScalar() == base && ret.getVectorLength() == length) { return ret; } } throw GraalError.shouldNotReachHere(String.format("unsupported vector kind: %d x %s", length, base)); } }