ipa-inline-transform.c (inline_call): Drop -fstrict-aliasing when inlining…

ipa-inline-transform.c (inline_call): Drop -fstrict-aliasing when inlining -fno-strict-aliasing into...


	* ipa-inline-transform.c (inline_call): Drop -fstrict-aliasing when
	inlining -fno-strict-aliasing into -fstrict-aliasing body.
	* gcc.dg/lto/alias-1_0.c: New testcase.
	* gcc.dg/lto/alias-1_1.c: New testcase.

From-SVN: r231094

gcc/ChangeLog

+2015-11-30  Jan Hubicka  <hubicka@ucw.cz>
+
+	* ipa-inline-transform.c (inline_call): Drop -fstrict-aliasing when
+	inlining -fno-strict-aliasing into -fstrict-aliasing body.
+
 2015-11-30  Aditya Kumar  <aditya.k7@samsung.com>
 	    Sebastian Pop  <s.pop@samsung.com>
 

gcc/testsuite/ChangeLog

+2015-11-30  Jan Hubicka  <hubicka@ucw.cz>
+
+	* gcc.dg/lto/alias-1_0.c: New testcase.
+	* gcc.dg/lto/alias-1_1.c: New testcase.
+
 2015-11-30  Aditya Kumar  <aditya.k7@samsung.com>
 	    Sebastian Pop  <s.pop@samsung.com>
 

gcc/testsuite/gcc.dg/lto/alias-1_0.c

+/* { dg-lto-do run } */
+/* { dg-lto-options { { -O2 -flto } } } */
+int val;
+
+__attribute__ ((used))
+int *ptr = &val;
+__attribute__ ((used))
+float *ptr2 = (void *)&val;
+
+extern void typefun(float val);
+
+void link_error (void);
+
+int
+main()
+{ 
+  *ptr=1;
+  typefun (0);
+  if (*ptr)
+    __builtin_abort ();
+  return 0;
+}
+

gcc/testsuite/gcc.dg/lto/alias-1_1.c

+/* { dg-options "-fno-strict-aliasing" } */
+extern float *ptr2;
+void
+typefun (float val)
+{ 
+  *ptr2=val;
+}