mirror of
https://github.com/PaperMC/Paper.git
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84 lines
4 KiB
Diff
84 lines
4 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Tue, 5 Apr 2016 21:38:58 -0400
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Subject: [PATCH] Optimize DataBits
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Remove Debug checks as these are super hot and causing noticeable hits
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Before: http://i.imgur.com/nQsMzAE.png
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After: http://i.imgur.com/nJ46crB.png
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Optimize redundant converting of static fields into an unsigned long each call by precomputing it in ctor
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diff --git a/src/main/java/net/minecraft/util/BitStorage.java b/src/main/java/net/minecraft/util/BitStorage.java
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index 97bde5f8402452e59b0da94edfe1b970cdb86748..dd84984f28484cf7129c294222696784e128221a 100644
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--- a/src/main/java/net/minecraft/util/BitStorage.java
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+++ b/src/main/java/net/minecraft/util/BitStorage.java
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@@ -13,8 +13,8 @@ public class BitStorage {
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private final long mask;
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private final int size;
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private final int valuesPerLong;
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- private final int divideMul;
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- private final int divideAdd;
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+ private final int divideMul;private final long g_unsigned; // Paper - referenced in b(int) with 2 Integer.toUnsignedLong calls
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+ private final int divideAdd;private final long h_unsigned; // Paper
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private final int divideShift;
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public BitStorage(int elementBits, int size) {
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@@ -29,8 +29,8 @@ public class BitStorage {
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this.valuesPerLong = (char) (64 / elementBits);
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int k = 3 * (this.valuesPerLong - 1);
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- this.divideMul = BitStorage.MAGIC[k + 0];
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- this.divideAdd = BitStorage.MAGIC[k + 1];
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+ this.divideMul = BitStorage.MAGIC[k + 0]; this.g_unsigned = Integer.toUnsignedLong(this.divideMul); // Paper
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+ this.divideAdd = BitStorage.MAGIC[k + 1]; this.h_unsigned = Integer.toUnsignedLong(this.divideAdd); // Paper
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this.divideShift = BitStorage.MAGIC[k + 2];
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int l = (size + this.valuesPerLong - 1) / this.valuesPerLong;
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@@ -47,15 +47,15 @@ public class BitStorage {
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}
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private int cellIndex(int i) {
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- long j = Integer.toUnsignedLong(this.divideMul);
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- long k = Integer.toUnsignedLong(this.divideAdd);
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+ //long j = Integer.toUnsignedLong(this.g); // Paper
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+ //long k = Integer.toUnsignedLong(this.h); // Paper
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- return (int) ((long) i * j + k >> 32 >> this.divideShift);
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+ return (int) ((long) i * this.g_unsigned + this.h_unsigned >> 32 >> this.divideShift); // Paper
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}
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- public int getAndSet(int index, int value) {
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- Validate.inclusiveBetween(0L, (long) (this.size - 1), (long) index);
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- Validate.inclusiveBetween(0L, this.mask, (long) value);
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+ public final int getAndSet(int index, int value) { // Paper - make final for inline
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+ //Validate.inclusiveBetween(0L, (long) (this.e - 1), (long) i); // Paper
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+ //Validate.inclusiveBetween(0L, this.d, (long) j); // Paper
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int k = this.cellIndex(index);
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long l = this.data[k];
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int i1 = (index - k * this.valuesPerLong) * this.bits;
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@@ -65,9 +65,9 @@ public class BitStorage {
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return j1;
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}
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- public void set(int index, int value) {
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- Validate.inclusiveBetween(0L, (long) (this.size - 1), (long) index);
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- Validate.inclusiveBetween(0L, this.mask, (long) value);
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+ public final void set(int index, int value) { // Paper - make final for inline
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+ //Validate.inclusiveBetween(0L, (long) (this.e - 1), (long) i); // Paper
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+ //Validate.inclusiveBetween(0L, this.d, (long) j); // Paper
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int k = this.cellIndex(index);
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long l = this.data[k];
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int i1 = (index - k * this.valuesPerLong) * this.bits;
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@@ -75,8 +75,8 @@ public class BitStorage {
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this.data[k] = l & ~(this.mask << i1) | ((long) value & this.mask) << i1;
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}
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- public int get(int index) {
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- Validate.inclusiveBetween(0L, (long) (this.size - 1), (long) index);
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+ public final int get(int index) { // Paper - make final for inline
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+ //Validate.inclusiveBetween(0L, (long) (this.e - 1), (long) i); // Paper
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int j = this.cellIndex(index);
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long k = this.data[j];
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int l = (index - j * this.valuesPerLong) * this.bits;
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