From: cui <cuiweixie@gmail.com>
Date: Mon, 5 Apr 2021 12:38:12 +0000 (+0000)
Subject: cmd/compile/internal/ssagen: conditon not need
X-Git-Tag: go1.17beta1~843
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=9abedf4827;p=gostls13.git

cmd/compile/internal/ssagen: conditon not need

 n.Op() == ir.OFOR so n.Op() != ir.OFORUNTIL is always true

Change-Id: I97191783c1fb31ef76e0601f626b45af1e8d316e
GitHub-Last-Rev: f68f9fecfb7adf37af060afb77d6615839aabc6e
GitHub-Pull-Request: golang/go#45389
Reviewed-on: https://go-review.googlesource.com/c/go/+/307251
Reviewed-by: Keith Randall <khr@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Josh Bleecher Snyder <josharian@gmail.com>
---

diff --git a/src/cmd/compile/internal/ssagen/ssa.go b/src/cmd/compile/internal/ssagen/ssa.go
index 0a49ca214d..8275d2ec9c 100644
--- a/src/cmd/compile/internal/ssagen/ssa.go
+++ b/src/cmd/compile/internal/ssagen/ssa.go
@@ -1803,7 +1803,7 @@ func (s *state) stmt(n ir.Node) {
 				b.AddEdgeTo(bCond)
 				// It can happen that bIncr ends in a block containing only VARKILL,
 				// and that muddles the debugging experience.
-				if n.Op() != ir.OFORUNTIL && b.Pos == src.NoXPos {
+				if b.Pos == src.NoXPos {
 					b.Pos = bCond.Pos
 				}
 			}