[Bug fortran/40270] [4.5 Regression] Revision 147883 caused many Fortran regressions

burnus at gcc dot gnu dot org gcc-bugzilla@gcc.gnu.org
Wed May 27 16:43:00 GMT 2009



------- Comment #8 from burnus at gcc dot gnu dot org  2009-05-27 16:43 -------
(In reply to comment #6)
> The patch in comment #5 fixes most of the issues, not all. Remaining
[...]
> parameter_unused and blockdata_3 fail because it complains that argc and argv
> are unused, even though the 003t.original shows that _gfortran_set_args is
> called as it should.

See patch below. The problem is (as always) that GIMPLE requires the user to do
everything - while in C the compiler does all the work :-)

@@ -3903,6 +3912,8 @@
   /* Call some libgfortran initialization routines, call then MAIN__(). */

   /* Call _gfortran_set_args (argc, argv).  */
+  TREE_USED (argc) = 1;
+  TREE_USED (argv) = 1;
   tmp = build_call_expr (gfor_fndecl_set_args, 2, argc, argv);
   gfc_add_expr_to_block (&body, tmp);


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40270



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