From dec42fe4e3669409383d44d69a5992cd0c50fdb0 Mon Sep 17 00:00:00 2001
From: Ian Lance Taylor <iant@golang.org>
Date: Fri, 20 Nov 2020 15:19:29 -0800
Subject: libgo: update to Go 1.15.5 release

Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/272146
---
 libgo/go/math/big/nat.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'libgo/go/math')

diff --git a/libgo/go/math/big/nat.go b/libgo/go/math/big/nat.go
index 6a3989b..8c43de6 100644
--- a/libgo/go/math/big/nat.go
+++ b/libgo/go/math/big/nat.go
@@ -928,7 +928,7 @@ func (z nat) divRecursiveStep(u, v nat, depth int, tmp *nat, temps []*nat) {
 
 	// Now u < (v<<B), compute lower bits in the same way.
 	// Choose shift = B-1 again.
-	s := B
+	s := B - 1
 	qhat := *temps[depth]
 	qhat.clear()
 	qhat.divRecursiveStep(u[s:].norm(), v[s:], depth+1, tmp, temps)
-- 
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