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authorBen Cheng <bccheng@google.com>2014-03-25 22:37:19 -0700
committerBen Cheng <bccheng@google.com>2014-03-25 22:37:19 -0700
commit1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch)
treec607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/testsuite/gcc.dg/sibcall-6.c
parent283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff)
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Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/sibcall-6.c')
-rw-r--r--gcc-4.9/gcc/testsuite/gcc.dg/sibcall-6.c46
1 files changed, 46 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/sibcall-6.c b/gcc-4.9/gcc/testsuite/gcc.dg/sibcall-6.c
new file mode 100644
index 000000000..744bf4698
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/sibcall-6.c
@@ -0,0 +1,46 @@
+/* A simple check to see whether indirect calls are
+ being sibcall optimized on targets that do support
+ this notion, i.e. have the according call patterns
+ in place.
+
+ Copyright (C) 2002 Free Software Foundation Inc.
+ Contributed by Andreas Bauer <baueran@in.tum.de> */
+
+/* { dg-do run { target epiphany-*-* i?86-*-* x86_64-*-* s390*-*-* } } */
+/* { dg-skip-if "" { { i?86-*-* x86_64-*-* } && { ia32 && { ! nonpic } } } { "*" } { "" } } */
+/* { dg-options "-O2 -foptimize-sibling-calls -fno-ipa-cp" } */
+
+extern void abort (void);
+extern void exit (int);
+
+int foo (int);
+int bar (int);
+
+int (*ptr) (int);
+int *f_addr;
+
+int
+main ()
+{
+ ptr = bar;
+ foo (7);
+ exit (0);
+}
+
+int __attribute__ ((noinline))
+bar (b)
+ int b;
+{
+ if (f_addr == (int*) __builtin_return_address (0))
+ return b;
+ else
+ abort ();
+}
+
+int __attribute__ ((noinline))
+foo (f)
+ int f;
+{
+ f_addr = (int*) __builtin_return_address (0);
+ return (*ptr)(f);
+}