From: Keith Randall <khr@golang.org>
Date: Wed, 13 Dec 2023 21:45:05 +0000 (-0800)
Subject: internal/abi: get rid of itab blank field
X-Git-Tag: go1.23rc1~1211
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=cdd0ddaf45f0de162d4e52e8418bd0638a3dc800;p=gostls13.git

internal/abi: get rid of itab blank field

We don't need it anymore, as we're accessing all the field offsets
symbolically.
This won't affect 64-bit, but it makes itabs on 32-bit 4 bytes smaller.

Change-Id: I7fb937813111476fd5ab03005b248ea7bb962cf6
Reviewed-on: https://go-review.googlesource.com/c/go/+/549517
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Keith Randall <khr@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
---

diff --git a/src/internal/abi/iface.go b/src/internal/abi/iface.go
index 8fefcaefa0..fb25a2d1f3 100644
--- a/src/internal/abi/iface.go
+++ b/src/internal/abi/iface.go
@@ -12,7 +12,6 @@ package abi
 type ITab struct {
 	Inter *InterfaceType
 	Type  *Type
-	Hash  uint32 // copy of Type.Hash. Used for type switches.
-	_     [4]byte
+	Hash  uint32     // copy of Type.Hash. Used for type switches.
 	Fun   [1]uintptr // variable sized. fun[0]==0 means Type does not implement Inter.
 }