cmd/compile/internal/ir: use strings.Builder

Change-Id: I24fb36a0591782c07f26c3289265aa41a643666d
Reviewed-on: https://go-review.googlesource.com/c/go/+/428357
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Run-TryBot: Robert Griesemer <gri@google.com>

diff --git a/src/cmd/compile/internal/ir/mknode.go b/src/cmd/compile/internal/ir/mknode.go
index be529a7e5cd98a655fc7c26e849d75d63cce2029..d815195721f215ce2eadee415069f0bc5e347109 100644 (file)
--- a/src/cmd/compile/internal/ir/mknode.go
+++ b/src/cmd/compile/internal/ir/mknode.go
@@ -254,9 +254,9 @@ func processType(t *ast.TypeSpec) {
                }
        }
        // Process fields.
-       var copyBody bytes.Buffer
-       var doChildrenBody bytes.Buffer
-       var editChildrenBody bytes.Buffer
+       var copyBody strings.Builder
+       var doChildrenBody strings.Builder
+       var editChildrenBody strings.Builder
        for _, f := range fields {
                if f.Tag != nil {
                        tag := f.Tag.Value[1 : len(f.Tag.Value)-1]