cmd/compile: fix assignment order in string range loop
Fixes #18376.
Change-Id: I4fe24f479311cd4cd1bdad9a966b681e50e3d500
Reviewed-on: https://go-review.googlesource.com/35955
Reviewed-by: Keith Randall <khr@golang.org>
Run-TryBot: Martin Möhrmann <moehrmann@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
diff --git a/test/range.go b/test/range.go
index bae7a1c..afdac57 100644
--- a/test/range.go
+++ b/test/range.go
@@ -277,6 +277,26 @@
println("wrong sum ranging over makestring", s)
panic("fail")
}
+
+ x := []rune{'a', 'b'}
+ i := 1
+ for i, x[i] = range "c" {
+ break
+ }
+ if i != 0 || x[0] != 'a' || x[1] != 'c' {
+ println("wrong parallel assignment", i, x[0], x[1])
+ panic("fail")
+ }
+
+ y := []int{1, 2, 3}
+ r := rune(1)
+ for y[r], r = range "\x02" {
+ break
+ }
+ if r != 2 || y[0] != 1 || y[1] != 0 || y[2] != 3 {
+ println("wrong parallel assignment", r, y[0], y[1], y[2])
+ panic("fail")
+ }
}
func teststring1() {
