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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/lto/ipareference_0.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/lto/ipareference_0.c')
-rw-r--r--gcc-4.9/gcc/testsuite/gcc.dg/lto/ipareference_0.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/lto/ipareference_0.c b/gcc-4.9/gcc/testsuite/gcc.dg/lto/ipareference_0.c
new file mode 100644
index 000000000..f8970f0e9
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.dg/lto/ipareference_0.c
@@ -0,0 +1,26 @@
+/* { dg-lto-options {{ -O1 -flto -flto-partition=1to1 }} } */
+/* { dg-lto-do run } */
+
+/* Test that ipa-reference notice that get_val will not change since do_nothing does not
+ modify anything. This needs streaming cross file boundary summaries. */
+extern int get_val (void);
+extern int set_val (void);
+extern do_nothing (void);
+void abort (void);
+main()
+{
+ int a;
+ int b;
+ set_val ();
+ a = get_val ();
+ do_nothing();
+ b = get_val ();
+ if (a==b)
+ {
+ if (!__builtin_constant_p (a==b))
+ abort ();
+ return 0;
+ }
+ else
+ abort ();
+}