[Bug c++/37217] [4.4 Regression] -Wconversion causes ICE with __builtin_strcmp with one char compare

[manu at gcc dot gnu dot org]

------- Comment #8 from manu at gcc dot gnu dot org  2008-08-25 12:36 -------
The fix is trivial:

Index: gcc/c-common.c
===================================================================
--- gcc/c-common.c      (revision 139373)
+++ gcc/c-common.c      (working copy)
@@ -1566,11 +1566,11 @@ conversion_warning (tree type, tree expr
   /* If any operand is artificial, then this expression was generated
      by the compiler and we do not warn.  */
   for (i = 0; i < expr_num_operands; i++)
     {
       tree op = TREE_OPERAND (expr, i);
-      if (DECL_P (op) && DECL_ARTIFICIAL (op))
+      if (op && DECL_P (op) && DECL_ARTIFICIAL (op))
        return;
     }

   switch (TREE_CODE (expr))
     {

However, the testcase is too big for the testsuite...


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37217