PaperMC/Spigot-Server-Patches/0296-Speedup-BlockPos-by-fixing-inlining.patch
Shane Freeder b68b282439
Updated Upstream (Bukkit/CraftBukkit/Spigot)
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Warning: this commit contains more mapping changes from upstream, As always, ensure that you
have working backups and test this build before deployment; Developers working on paper will,
yet again, need to delete their work/Minecraft/1.13.2 folder

Bukkit Changes:
7fca5fd4 SPIGOT-4558: Preserve user order in the face of copied defaults in configurations
15c9b1eb Ignore spurious slot IDs sent by client, e.g. in enchanting tables
5d2a10c5 SPIGOT-3747: Add API for force loaded chunks
d6dd2bb3 SPIGOT-3538: Add getHitBlockFace for ProjectileHitEvent
771db4aa SPIGOT-794: Call EntityPlaceEvent for Minecart placement
55462509 Add InventoryView#getSlotType
2f3ce5b6 Remove EntityTransformEvent and CustomItemTagContainer from draft API
f04ad7b6 Make ProjectileLaunchEvent extend EntitySpawnEvent
ccb85808 Define EntitySpawnEvent
b8cc3ebe Add PlayerItemDamageEvent
184a495d Ease ClassLoader Deadlocks Where Possible
11ac4728 Expand Boolean Prompt Values in Conversation API
aae62d51 Added getAllSessionData() to the Conversation API.
9290ff91 Add InventoryView#getInventory API
995e530f Add API to get / set base arrow damage

CraftBukkit Changes:
c4a67eed SPIGOT-4556: Fix plugins closing inventory during drop events
5be2ddcb Replace version constants with methods to prevent compiler inlining
a5b9c7b3 Use API method to create offset command completions
2bc7d1df SPIGOT-3747: Add API for force loaded chunks
a408f375 SPIGOT-3538: Add getHitBlockFace for ProjectileHitEvent
b54b9409 SPIGOT-2864: Make Arrow / Item setTicksLived behave like FallingBlock
79ded7a8 SPIGOT-1811: Death message not shown on respawn screen
b4a4f15d SPIGOT-943: InventoryCloseEvent called on death regardless of open inventory
0afed592 SPIGOT-794: Call EntityPlaceEvent for Minecart placement
2b2d084a Add InventoryView#getSlotType
01a9959a Do not use deprecated ItemSpawnEvent constructor
9642498d SPIGOT-4547: Call EntitySpawnEvent as general spawn fallback event
963f4a5f Add PlayerItemDamageEvent
63db0445 Add API to get / set base arrow damage
531c25d7 Add CraftMagicNumbers.MAPPINGS_VERSION for use by NMS plugins
d05c8b14 Mappings Update
bd36e200 SPIGOT-4551: Ignore invalid attribute modifier slots

Spigot Changes:
518206a1 Remove redundant trove depend
1959ad21 MC-11211,SPIGOT-4552: Fix placing double slabs at y = 255
29ab5e43 SPIGOT-3661: Allow arguments in restart-script
7cc46316 SPIGOT-852: Growth modifiers for beetroots, potatoes, carrots
82e117e1 Squelch "fatal: Resolve operation not in progress" message
0a1a68e7 Mappings Update & Patch Rebuild
2019-01-01 03:29:51 +00:00

205 lines
8.6 KiB
Diff

From 5ac6c5d4c6873c58978ed4f46cfe790a59c15b36 Mon Sep 17 00:00:00 2001
From: Techcable <Techcable@outlook.com>
Date: Wed, 30 Nov 2016 20:56:58 -0600
Subject: [PATCH] Speedup BlockPos by fixing inlining
Normally the JVM can inline virtual getters by having two sets of code, one is the 'optimized' code and the other is the 'deoptimized' code.
If a single type is used 99% of the time, then its worth it to inline, and to revert to 'deoptimized' the 1% of the time we encounter other types.
But if two types are encountered commonly, then the JVM can't inline them both, and the call overhead remains.
This scenario also occurs with BlockPos and MutableBlockPos.
The variables in BlockPos are final, so MutableBlockPos can't modify them.
MutableBlockPos fixes this by adding custom mutable variables, and overriding the getters to access them.
This approach with utility methods that operate on MutableBlockPos and BlockPos.
Specific examples are BlockPosition.up(), and World.isValidLocation().
It makes these simple methods much slower than they need to be.
This should result in an across the board speedup in anything that accesses blocks or does logic with positions.
This is based upon conclusions drawn from inspecting the assenmbly generated bythe JIT compiler on my mircorbenchmarks.
They had 'callq' (invoke) instead of 'mov' (get from memory) instructions.
diff --git a/src/main/java/net/minecraft/server/BaseBlockPosition.java b/src/main/java/net/minecraft/server/BaseBlockPosition.java
index 4c7793f86..cc17a414f 100644
--- a/src/main/java/net/minecraft/server/BaseBlockPosition.java
+++ b/src/main/java/net/minecraft/server/BaseBlockPosition.java
@@ -7,22 +7,22 @@ import javax.annotation.concurrent.Immutable;
public class BaseBlockPosition implements Comparable<BaseBlockPosition> {
public static final BaseBlockPosition ZERO = new BaseBlockPosition(0, 0, 0);
- private final int a;
- private final int b;
- private final int c;
// Paper start
+ protected int x;
+ protected int y;
+ protected int z;
public boolean isValidLocation() {
- return a >= -30000000 && c >= -30000000 && a < 30000000 && c < 30000000 && b >= 0 && b < 256;
+ return x >= -30000000 && z >= -30000000 && x < 30000000 && z < 30000000 && y >= 0 && y < 256;
}
public boolean isInvalidYLocation() {
- return b < 0 || b >= 256;
+ return y < 0 || y >= 256;
}
// Paper end
public BaseBlockPosition(int i, int j, int k) {
- this.a = i;
- this.b = j;
- this.c = k;
+ this.x = i;
+ this.y = j;
+ this.z = k;
}
public BaseBlockPosition(double d0, double d1, double d2) {
@@ -49,17 +49,19 @@ public class BaseBlockPosition implements Comparable<BaseBlockPosition> {
return this.getY() == baseblockposition.getY() ? (this.getZ() == baseblockposition.getZ() ? this.getX() - baseblockposition.getX() : this.getZ() - baseblockposition.getZ()) : this.getY() - baseblockposition.getY();
}
- public int getX() {
- return this.a;
+ // Paper start
+ public final int getX() {
+ return this.x;
}
public int getY() {
- return this.b;
+ return this.y;
}
public int getZ() {
- return this.c;
+ return this.z;
}
+ // Paper end
public BaseBlockPosition d(BaseBlockPosition baseblockposition) {
return new BaseBlockPosition(this.getY() * baseblockposition.getZ() - this.getZ() * baseblockposition.getY(), this.getZ() * baseblockposition.getX() - this.getX() * baseblockposition.getZ(), this.getX() * baseblockposition.getY() - this.getY() * baseblockposition.getX());
diff --git a/src/main/java/net/minecraft/server/BlockPosition.java b/src/main/java/net/minecraft/server/BlockPosition.java
index a4c282220..f260068c6 100644
--- a/src/main/java/net/minecraft/server/BlockPosition.java
+++ b/src/main/java/net/minecraft/server/BlockPosition.java
@@ -202,18 +202,18 @@ public class BlockPosition extends BaseBlockPosition {
if (this.g == null) {
this.g = new BlockPosition.MutableBlockPosition(i, j, k);
return this.g;
- } else if (this.g.b == l && this.g.c == i1 && this.g.d == j1) {
+ } else if (this.g.x == l && this.g.y == i1 && this.g.z == j1) {
return (BlockPosition.MutableBlockPosition) this.endOfData();
} else {
- if (this.g.b < l) {
- ++this.g.b;
- } else if (this.g.c < i1) {
- this.g.b = i; // Paper - decompile fix Readd line removed by the decompiler
- ++this.g.c;
- } else if (this.g.d < j1) {
- this.g.b = i; // Paper - decompile fix Readd line removed by the decompiler
- this.g.c = j; // Paper - decompile fix Readd line removed by the decompiler
- ++this.g.d;
+ if (this.g.x < l) {
+ ++this.g.x;
+ } else if (this.g.y < i1) {
+ this.g.x = i; // Paper - decompile fix Readd line removed by the decompiler
+ ++this.g.y;
+ } else if (this.g.z < j1) {
+ this.g.x = i; // Paper - decompile fix Readd line removed by the decompiler
+ this.g.y = j; // Paper - decompile fix Readd line removed by the decompiler
+ ++this.g.z;
}
return this.g;
@@ -296,11 +296,12 @@ public class BlockPosition extends BaseBlockPosition {
}
public static class MutableBlockPosition extends BlockPosition {
-
+ // Paper start - comment out
+ /*
protected int b;
protected int c;
protected int d;
- // Paper start
+
@Override
public boolean isValidLocation() {
return b >= -30000000 && d >= -30000000 && b < 30000000 && d < 30000000 && c >= 0 && c < 256;
@@ -309,6 +310,7 @@ public class BlockPosition extends BaseBlockPosition {
public boolean isInvalidYLocation() {
return c < 0 || c >= 256;
}
+ */
// Paper end
public MutableBlockPosition() {
@@ -320,10 +322,13 @@ public class BlockPosition extends BaseBlockPosition {
}
public MutableBlockPosition(int i, int j, int k) {
- super(0, 0, 0);
+ // Paper start
+ super(i, j, k);
+ /*
this.b = i;
this.c = j;
- this.d = k;
+ this.d = k;*/
+ // Paper end
}
public BlockPosition a(double d0, double d1, double d2) {
@@ -342,6 +347,8 @@ public class BlockPosition extends BaseBlockPosition {
return super.a(enumblockrotation).h();
}
+ /*
+ // Paper start - use parent getters
public int getX() {
return this.b;
}
@@ -352,13 +359,16 @@ public class BlockPosition extends BaseBlockPosition {
public int getZ() {
return this.d;
- }
+ }*/
+ // Paper end
public BlockPosition.MutableBlockPosition setValues(int i, int j, int k) { return c(i, j, k);} // Paper - OBFHELPER
public BlockPosition.MutableBlockPosition c(int i, int j, int k) {
- this.b = i;
- this.c = j;
- this.d = k;
+ // Paper start - use xyz
+ this.x = i;
+ this.y = j;
+ this.z = k;
+ // Paper end
return this;
}
@@ -376,15 +386,15 @@ public class BlockPosition extends BaseBlockPosition {
}
public BlockPosition.MutableBlockPosition c(EnumDirection enumdirection, int i) {
- return this.c(this.b + enumdirection.getAdjacentX() * i, this.c + enumdirection.getAdjacentY() * i, this.d + enumdirection.getAdjacentZ() * i);
+ return this.c(x + enumdirection.getAdjacentX() * i, y + enumdirection.getAdjacentY() * i, z + enumdirection.getAdjacentZ() * i); // Paper - use xyz
}
public BlockPosition.MutableBlockPosition d(int i, int j, int k) {
- return this.c(this.b + i, this.c + j, this.d + k);
+ return this.c(x + i, y + j, z + k); // Paper - use xyz
}
public void p(int i) {
- this.c = i;
+ this.y = i; // Paper change to y
}
public BlockPosition toBlockPosition() { return h(); } // Paper - OBFHELPER
--
2.20.1