From: Charles G Waldman <cgw@alum.mit.edu>
Date: Tue, 16 Feb 1999 00:40:05 +0000 (-0700)
Subject: c-common.c (shorten_compare): Get the min/max value from the underlying type of an... 
X-Git-Tag: prereleases/egcs-1.1.2-prerelease-1~3
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1f47bc2e9cd3d8db6d2b691fa07426aa67282de8;p=thirdparty%2Fgcc.git

c-common.c (shorten_compare): Get the min/max value from the underlying type of an enumeration...

�
        * c-common.c (shorten_compare): Get the min/max value from the
        underlying type of an enumeration, not the enumerated type itself.

From-SVN: r25227
---

diff --git a/gcc/c-common.c b/gcc/c-common.c
index 5803ab675d37..61600fb910b6 100644
--- a/gcc/c-common.c
+++ b/gcc/c-common.c
@@ -2284,6 +2284,12 @@ shorten_compare (op0_ptr, op1_ptr, restype_ptr, rescode_ptr)
 
       type = signed_or_unsigned_type (unsignedp0, TREE_TYPE (primop0));
 
+      /* If TYPE is an enumeration, then we need to get its min/max
+	 values from it's underlying integral type, not the enumerated
+	 type itself.  */
+      if (TREE_CODE (type) == ENUMERAL_TYPE)
+	type = type_for_size (TYPE_PRECISION (type), unsignedp0);
+
       maxval = TYPE_MAX_VALUE (type);
       minval = TYPE_MIN_VALUE (type);