pr10412-1-test.patch

来自「linux下编译交叉工具链的工具源码」· PATCH 代码 · 共 47 行

--- /dev/null	Sat Dec 14 13:56:51 2002
+++ gcc-3.3.1/gcc/testsuite/gcc.dg/pr10412-1.c	Sun Sep 14 16:15:21 2003
@@ -0,0 +1,43 @@
+/* PR target/10412
+ * Reporter: [e-mail] 
+ * Summary: Renesas SH - Incorrect code generation
+ * Description:
+ * When following code is compiled  with
+ * sh-elf-gcc  -S -mhitachi -m2 -O2 bug1.c
+ * generates an incorrect code.
+ *
+ * Testcase tweaked by [e-mail]
+ * Problem only happens with -mhitachi -m2.  Not sure if I can give those
+ * options for all sh targets.  They work on sh4, though.
+ * Not marked as xfail as it's a regression relative to hardhat 2.0 gcc-2.97.
+*/
+/* { dg-do run } */
+/* { dg-options "-O2" } */
+int global_val;
+
+int func0(int x)
+{
+	global_val += x;
+	return (x != 99);
+}
+
+int func1(unsigned long addr)
+{
+	int err;
+
+	err = func0(addr);
+	if (err)
+		return (err);
+
+	err = func0(addr * 7);	/* address of func0 is lost during multiplication -> probable SIGSEGV */
+	return (err);
+}
+
+int main(int argc, char **argv)
+{
+	global_val = 0;
+	global_val += func1(99);
+	if (global_val != 99 * 8 + 1)
+		abort();
+	return 0;
+}