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diff gcc/testsuite/gcc.dg/alias-1.c @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/alias-1.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,28 @@
+// { dg-do compile }
+// { dg-options "-Wstrict-aliasing=2 -fstrict-aliasing" }
+
+// Copyright (C) 2002 Free Software Foundation, Inc.
+// Contributed by Nathan Sidwell 29 Sep 2002 <nathan@codesourcery.com>
+
+// 8083. warn about odd casts
+
+typedef int YYSTYPE;
+typedef struct tDefEntry 
+{
+  unsigned t;
+  
+} tDefEntry;
+struct incomplete;
+
+
+YYSTYPE
+ addSibMacro(
+         YYSTYPE  list )
+ {
+     tDefEntry** ppT   = (tDefEntry**)&list; // { dg-warning "type-punned pointer will" }
+ 
+     struct incomplete *p = (struct incomplete *)&list; // { dg-warning "type-punning to incomplete" }
+     
+     return list;
+ }
+