PR middle-end/23369

	* fold-const.c (build_range_check): Disable optimization for function
	pointer expressions on targets that require function pointer
	canonicalization.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@103145 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index f4960d6..93257ee 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2005-08-15  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
+
+       PR middle-end/23369
+       * fold-const.c (build_range_check): Disable optimization for function
+       pointer expressions on targets that require function pointer
+       canonicalization.
+
 2005-08-15  Ulrich Weigand  <uweigand@de.ibm.com>
 
        * simplify-rtx.c (simplify_const_relational_operation): When

diff --git a/gcc/fold-const.c b/gcc/fold-const.c
index 19b5459..84dad8b 100644 (file)
--- a/gcc/fold-const.c
+++ b/gcc/fold-const.c
@@ -3929,6 +3929,15 @@ build_range_check (tree type, tree exp, int in_p, tree low, tree high)
   tree etype = TREE_TYPE (exp);
   tree value;
 
+#ifdef HAVE_canonicalize_funcptr_for_compare
+  /* Disable this optimization for function pointer expressions
+     on targets that require function pointer canonicalization.  */
+  if (HAVE_canonicalize_funcptr_for_compare
+      && TREE_CODE (etype) == POINTER_TYPE
+      && TREE_CODE (TREE_TYPE (etype)) == FUNCTION_TYPE)
+    return NULL_TREE;
+#endif
+
   if (! in_p)
     {
       value = build_range_check (type, exp, 1, low, high);