obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 55 insertions, 0 deletions

diff --git a/gcc/testsuite/go.test/test/bugs/bug260.go b/gcc/testsuite/go.test/test/bugs/bug260.go
new file mode 100644
index 000000000..6a6331e65
--- /dev/null
+++ b/gcc/testsuite/go.test/test/bugs/bug260.go
@@ -0,0 +1,55 @@
+// $G $D/$F.go && $L $F.$A && ./$A.out || echo BUG: bug260 failed
+
+// Test that structures pack densely, according to the alignment of the largest field.
+
+package main
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+)
+
+type T1 struct { x uint8 }
+type T2 struct { x uint16 }
+type T4 struct { x uint32 }
+
+func main() {
+	report := len(os.Args) > 1
+	status := 0
+	var b1 [10]T1
+	a0, _ := strconv.Btoui64(fmt.Sprintf("%p", &b1[0])[2:], 16)
+	a1, _ := strconv.Btoui64(fmt.Sprintf("%p", &b1[1])[2:], 16)
+	if a1 != a0 + 1 {
+		fmt.Println("FAIL")
+		if report {
+			fmt.Println("alignment should be 1, is", a1-a0)
+		}
+		status = 1
+	}
+	var b2 [10]T2
+	a0, _ = strconv.Btoui64(fmt.Sprintf("%p", &b2[0])[2:], 16)
+	a1, _ = strconv.Btoui64(fmt.Sprintf("%p", &b2[1])[2:], 16)
+	if a1 != a0 + 2 {
+		if status == 0 {
+			fmt.Println("FAIL")
+			status = 1
+		}
+		if report {
+			fmt.Println("alignment should be 2, is", a1-a0)
+		}
+	}
+	var b4 [10]T4
+	a0, _ = strconv.Btoui64(fmt.Sprintf("%p", &b4[0])[2:], 16)
+	a1, _ = strconv.Btoui64(fmt.Sprintf("%p", &b4[1])[2:], 16)
+	if a1 != a0 + 4 {
+		if status == 0 {
+			fmt.Println("FAIL")
+			status = 1
+		}
+		if report {
+			fmt.Println("alignment should be 4, is", a1-a0)
+		}
+	}
+	os.Exit(status)
+}