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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gcc.target/arm/20051215-1.c
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Diffstat (limited to 'gcc/testsuite/gcc.target/arm/20051215-1.c')
-rw-r--r--gcc/testsuite/gcc.target/arm/20051215-1.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/arm/20051215-1.c b/gcc/testsuite/gcc.target/arm/20051215-1.c
new file mode 100644
index 000000000..0519dc7ce
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/20051215-1.c
@@ -0,0 +1,36 @@
+/* ARM's load-and-call patterns used to allow automodified addresses.
+ This was wrong, because if the modified register were spilled,
+ the call would need an output reload. */
+/* { dg-do run } */
+/* { dg-options "-O2 -fno-omit-frame-pointer" } */
+extern void abort (void);
+typedef void (*callback) (void);
+
+static void
+foo (callback *first, callback *p)
+{
+ while (p > first)
+ {
+ (*--p) ();
+#ifndef __thumb__
+ asm ("" : "=r" (p) : "0" (p)
+ : "r4", "r5", "r6", "r7", "r8", "r9", "r10");
+#endif
+ }
+}
+
+static void
+dummy (void)
+{
+ static int count;
+ if (count++ == 1)
+ abort ();
+}
+
+int
+main (void)
+{
+ callback list[1] = { dummy };
+ foo (&list[0], &list[1]);
+ return 0;
+}