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-rw-r--r--src/cmd/8g/cgen.c9
-rw-r--r--test/fixedbugs/bug259.go16
2 files changed, 24 insertions, 1 deletions
diff --git a/src/cmd/8g/cgen.c b/src/cmd/8g/cgen.c
index 5712fc28e..f932f9918 100644
--- a/src/cmd/8g/cgen.c
+++ b/src/cmd/8g/cgen.c
@@ -215,7 +215,14 @@ cgen(Node *n, Node *res)
break;
}
mgen(nl, &n1, res);
- gmove(&n1, res);
+ if(n->type->width > widthptr)
+ tempname(&n2, n->type);
+ else
+ regalloc(&n2, n->type, res);
+ gmove(&n1, &n2);
+ gmove(&n2, res);
+ if(n2.op == OREGISTER)
+ regfree(&n2);
mfree(&n1);
break;
diff --git a/test/fixedbugs/bug259.go b/test/fixedbugs/bug259.go
new file mode 100644
index 000000000..d148fb3a0
--- /dev/null
+++ b/test/fixedbugs/bug259.go
@@ -0,0 +1,16 @@
+// $G $D/$F.go && $L $F.$A && ./$A.out
+
+// Copyright 2010 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package main
+
+import "fmt"
+
+var x = uint32(0x01020304)
+var y = [...]uint32{1,2,3,4,5}
+
+func main() {
+ fmt.Sprint(y[byte(x)])
+}