From: Matthew Dempsky <mdempsky@google.com>
Date: Tue, 15 Aug 2023 21:11:37 +0000 (-0700)
Subject: cmd/compile/internal/escape: mark blankLoc as transient
X-Git-Tag: go1.22rc1~1252
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=570763e0ec50dff90073d6261eb7cd16e4aaf532;p=gostls13.git

cmd/compile/internal/escape: mark blankLoc as transient

Discarded values never persist, so they can be transiently allocated
too.

Change-Id: I036ce0c1eea45e437142497bb7df3ecb44b56e52
Reviewed-on: https://go-review.googlesource.com/c/go/+/520256
Auto-Submit: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
---

diff --git a/src/cmd/compile/internal/escape/escape.go b/src/cmd/compile/internal/escape/escape.go
index bd80fc5832..be02f1b6b0 100644
--- a/src/cmd/compile/internal/escape/escape.go
+++ b/src/cmd/compile/internal/escape/escape.go
@@ -130,6 +130,7 @@ func Batch(fns []*ir.Func, recursive bool) {
 
 	var b batch
 	b.heapLoc.escapes = true
+	b.blankLoc.transient = true
 
 	// Construct data-flow graph from syntax trees.
 	for _, fn := range fns {