From 85267f402c3ba7ec91a3cf5e4e4a763fd1137deb Mon Sep 17 00:00:00 2001
From: Dan Scales <danscales@google.com>
Date: Wed, 7 Jul 2021 14:42:26 -0700
Subject: [PATCH] [dev.typeparams] cmd/compile: move def of comparable to end
 of predeclared slices

This avoids changing the export ABI.

Change-Id: I58950c1f4c21859d91d66d352b88e8c0972b5b8c
Reviewed-on: https://go-review.googlesource.com/c/go/+/333164
Trust: Dan Scales <danscales@google.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
---
 src/cmd/compile/internal/importer/support.go  | 5 +++--
 src/cmd/compile/internal/typecheck/bexport.go | 5 +++--
 src/go/internal/gcimporter/support.go         | 5 +++--
 3 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/src/cmd/compile/internal/importer/support.go b/src/cmd/compile/internal/importer/support.go
index 7eecae15a6..6ceb413601 100644
--- a/src/cmd/compile/internal/importer/support.go
+++ b/src/cmd/compile/internal/importer/support.go
@@ -101,8 +101,6 @@ var predeclared = []types2.Type{
 
 	// error
 	types2.Universe.Lookup("error").Type(),
-	// comparable
-	types2.Universe.Lookup("comparable").Type(),
 
 	// untyped types
 	types2.Typ[types2.UntypedBool],
@@ -121,6 +119,9 @@ var predeclared = []types2.Type{
 
 	// used internally by gc; never used by this package or in .a files
 	anyType{},
+
+	// comparable
+	types2.Universe.Lookup("comparable").Type(),
 }
 
 type anyType struct{}
diff --git a/src/cmd/compile/internal/typecheck/bexport.go b/src/cmd/compile/internal/typecheck/bexport.go
index 45d67f6ea2..cc7f91f937 100644
--- a/src/cmd/compile/internal/typecheck/bexport.go
+++ b/src/cmd/compile/internal/typecheck/bexport.go
@@ -78,8 +78,6 @@ func predeclared() []*types.Type {
 
 			// error
 			types.ErrorType,
-			// comparable
-			types.ComparableType,
 
 			// untyped types
 			types.UntypedBool,
@@ -98,6 +96,9 @@ func predeclared() []*types.Type {
 
 			// any type, for builtin export data
 			types.Types[types.TANY],
+
+			// comparable
+			types.ComparableType,
 		}
 	}
 	return predecl
diff --git a/src/go/internal/gcimporter/support.go b/src/go/internal/gcimporter/support.go
index bb2058172a..09810dd85b 100644
--- a/src/go/internal/gcimporter/support.go
+++ b/src/go/internal/gcimporter/support.go
@@ -104,8 +104,6 @@ var predeclared = []types.Type{
 
 	// error
 	types.Universe.Lookup("error").Type(),
-	// comparable
-	types.Universe.Lookup("comparable").Type(),
 
 	// untyped types
 	types.Typ[types.UntypedBool],
@@ -124,6 +122,9 @@ var predeclared = []types.Type{
 
 	// used internally by gc; never used by this package or in .a files
 	anyType{},
+
+	// comparable
+	types.Universe.Lookup("comparable").Type(),
 }
 
 type anyType struct{}