[patch] Fix small oddity in gen_int_libfunc

[Eric Botcazou]

Hi,

there is a small oddity in gen_int_libfunc since 2007:

   if (GET_MODE_CLASS (mode) != MODE_INT
       || mode < word_mode || GET_MODE_BITSIZE (mode) > maxsize)
     return;

I don't think that modes are meant to be compared like that, so the attached 
patch replaces the direct comparison with a comparison on GET_MODE_BITSIZE.

Tested on x86/Linux and PowerPC/Linux, OK for the mainline?


2013-12-09  Eric Botcazou  <ebotca...@adacore.com>

        * optabs.c (gen_int_libfunc): Do not compare modes directly.


-- 
Eric Botcazou
Index: optabs.c
===================================================================
--- optabs.c	(revision 205774)
+++ optabs.c	(working copy)
@@ -5506,7 +5506,8 @@ gen_int_libfunc (optab optable, const ch
   if (maxsize < LONG_LONG_TYPE_SIZE)
     maxsize = LONG_LONG_TYPE_SIZE;
   if (GET_MODE_CLASS (mode) != MODE_INT
-      || mode < word_mode || GET_MODE_BITSIZE (mode) > maxsize)
+      || GET_MODE_BITSIZE (mode) < BITS_PER_WORD
+      || GET_MODE_BITSIZE (mode) > maxsize)
     return;
   gen_libfunc (optable, opname, suffix, mode);
 }