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authorCharles G Waldman <cgw@alum.mit.edu>1999-02-16 00:41:58 +0000
committerJeff Law <law@gcc.gnu.org>1999-02-15 17:41:58 -0700
commit8bbd56856dcc5f73bd0662322805e60e159be353 (patch)
tree91e9b8d9748714d68afb7086061668a5b0af8fe7 /gcc/c-common.c
parent20496fa2c8810a2da8d3667e35616999ab6fd8d9 (diff)
downloadgcc-8bbd56856dcc5f73bd0662322805e60e159be353.tar.gz
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: r25228
Diffstat (limited to 'gcc/c-common.c')
-rw-r--r--gcc/c-common.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/c-common.c b/gcc/c-common.c
index 5975236a393..aa94b087989 100644
--- a/gcc/c-common.c
+++ b/gcc/c-common.c
@@ -2406,6 +2406,12 @@ 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);