Commit b13ab42c by Alexandre Oliva Committed by Alexandre Oliva

tree.c (tree_int_cst_lt): Compare constants whose types differ in unsigned-ness correctly.

* tree.c (tree_int_cst_lt): Compare constants whose types differ
in unsigned-ness correctly.

From-SVN: r52802
parent 5e56f909
2002-04-26 Alexandre Oliva <aoliva@redhat.com>
* tree.c (tree_int_cst_lt): Compare constants whose types differ
in unsigned-ness correctly.
2002-04-26 John David Anglin <dave@hiauly1.hia.nrc.ca> 2002-04-26 John David Anglin <dave@hiauly1.hia.nrc.ca>
* pa.h (FUNCTION_OK_FOR_SIBCALL): Don't do sibcalls when using the * pa.h (FUNCTION_OK_FOR_SIBCALL): Don't do sibcalls when using the
......
...@@ -3230,7 +3230,20 @@ tree_int_cst_lt (t1, t2) ...@@ -3230,7 +3230,20 @@ tree_int_cst_lt (t1, t2)
if (t1 == t2) if (t1 == t2)
return 0; return 0;
if (! TREE_UNSIGNED (TREE_TYPE (t1))) if (TREE_UNSIGNED (TREE_TYPE (t1)) != TREE_UNSIGNED (TREE_TYPE (t2)))
{
int t1_sgn = tree_int_cst_sgn (t1);
int t2_sgn = tree_int_cst_sgn (t2);
if (t1_sgn < t2_sgn)
return 1;
else if (t1_sgn > t2_sgn)
return 0;
/* Otherwise, both are non-negative, so we compare them as
unsigned just in case one of them would overflow a signed
type. */
}
else if (! TREE_UNSIGNED (TREE_TYPE (t1)))
return INT_CST_LT (t1, t2); return INT_CST_LT (t1, t2);
return INT_CST_LT_UNSIGNED (t1, t2); return INT_CST_LT_UNSIGNED (t1, t2);
......
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