(simplify_binary_operation, case SMAX): Correctly compute largest

possible signed integer.

From-SVN: r3360

diff --git a/gcc/cse.c b/gcc/cse.c
index 1afb7f8..dd0c0e2 100644 (file)
--- a/gcc/cse.c
+++ b/gcc/cse.c
@@ -3823,7 +3823,7 @@ simplify_binary_operation (code, mode, op0, op1)
           
        case SMAX:
          if (width <= HOST_BITS_PER_WIDE_INT && GET_CODE (op1) == CONST_INT
-             && INTVAL (op1) == GET_MODE_MASK (mode) >> 1
+             && INTVAL (op1) == (unsigned) GET_MODE_MASK (mode) >> 1
              && ! side_effects_p (op0))
            return op1;
          else if (rtx_equal_p (op0, op1) && ! side_effects_p (op0))