From 183d25d9963107e6e4e86c49018ddd8871109d61 Mon Sep 17 00:00:00 2001
From: Than McIntosh <thanm@google.com>
Date: Mon, 27 Apr 2020 14:02:06 -0400
Subject: [PATCH] [dev.link] cmd/link/internal/sym: remove SortSub

Remove SortSub; this function no longer referenced.

Change-Id: Ie0c78f5cd048a8f465f84ceeab30db57be5c05a7
Reviewed-on: https://go-review.googlesource.com/c/go/+/230457
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Jeremy Faller <jeremy@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
---
 src/cmd/link/internal/sym/symbol.go | 74 -----------------------------
 1 file changed, 74 deletions(-)

diff --git a/src/cmd/link/internal/sym/symbol.go b/src/cmd/link/internal/sym/symbol.go
index 5bb1d438b0a..90c6d4c5f3b 100644
--- a/src/cmd/link/internal/sym/symbol.go
+++ b/src/cmd/link/internal/sym/symbol.go
@@ -443,80 +443,6 @@ func (s *Symbol) SetElfType(val elf.SymType) {
 	s.auxinfo.elftype = val
 }
 
-// SortSub sorts a linked-list (by Sub) of *Symbol by Value.
-// Used for sub-symbols when loading host objects (see e.g. ldelf.go).
-func SortSub(l *Symbol) *Symbol {
-	if l == nil || l.Sub == nil {
-		return l
-	}
-
-	l1 := l
-	l2 := l
-	for {
-		l2 = l2.Sub
-		if l2 == nil {
-			break
-		}
-		l2 = l2.Sub
-		if l2 == nil {
-			break
-		}
-		l1 = l1.Sub
-	}
-
-	l2 = l1.Sub
-	l1.Sub = nil
-	l1 = SortSub(l)
-	l2 = SortSub(l2)
-
-	/* set up lead element */
-	if l1.Value < l2.Value {
-		l = l1
-		l1 = l1.Sub
-	} else {
-		l = l2
-		l2 = l2.Sub
-	}
-
-	le := l
-
-	for {
-		if l1 == nil {
-			for l2 != nil {
-				le.Sub = l2
-				le = l2
-				l2 = l2.Sub
-			}
-
-			le.Sub = nil
-			break
-		}
-
-		if l2 == nil {
-			for l1 != nil {
-				le.Sub = l1
-				le = l1
-				l1 = l1.Sub
-			}
-
-			break
-		}
-
-		if l1.Value < l2.Value {
-			le.Sub = l1
-			le = l1
-			l1 = l1.Sub
-		} else {
-			le.Sub = l2
-			le = l2
-			l2 = l2.Sub
-		}
-	}
-
-	le.Sub = nil
-	return l
-}
-
 type Pcdata struct {
 	P []byte
 }