*** empty log message ***

From-SVN: r1477

diff --git a/gcc/cse.c b/gcc/cse.c
index dbb2f2209fdeb7fe6051a1732043c42294af13c3..a47e691a54d87b6d2617cc117585ef6d8cb39a30 100644 (file)
--- a/gcc/cse.c
+++ b/gcc/cse.c
@@ -2895,7 +2895,7 @@ simplify_unary_operation (code, mode, op, op_mode)
        case ZERO_EXTEND:
          if (op_mode == VOIDmode)
            op_mode = mode;
-         if (GET_MODE_BITSIZE (op_mode) == HOST_BITS_PER_INT)
+         if (GET_MODE_BITSIZE (op_mode) == HOST_BITS_PER_WIDE_INT)
            {
              /* If we were really extending the mode,
                 we would have to distinguish between zero-extension
@@ -2904,8 +2904,8 @@ simplify_unary_operation (code, mode, op, op_mode)
                abort ();
              val = arg0;
            }
-         else if (GET_MODE_BITSIZE (op_mode) < HOST_BITS_PER_INT)
-           val = arg0 & ~((-1) << GET_MODE_BITSIZE (op_mode));
+         else if (GET_MODE_BITSIZE (op_mode) < HOST_BITS_PER_WIDE_INT)
+           val = arg0 & ~((HOST_WIDE_INT) (-1) << GET_MODE_BITSIZE (op_mode));
          else
            return 0;
          break;
@@ -2913,7 +2913,7 @@ simplify_unary_operation (code, mode, op, op_mode)
        case SIGN_EXTEND:
          if (op_mode == VOIDmode)
            op_mode = mode;
-         if (GET_MODE_BITSIZE (op_mode) == HOST_BITS_PER_INT)
+         if (GET_MODE_BITSIZE (op_mode) == HOST_BITS_PER_WIDE_INT)
            {
              /* If we were really extending the mode,
                 we would have to distinguish between zero-extension
@@ -2924,9 +2924,11 @@ simplify_unary_operation (code, mode, op, op_mode)
            }
          else if (GET_MODE_BITSIZE (op_mode) < HOST_BITS_PER_INT)
            {
-             val = arg0 & ~((-1) << GET_MODE_BITSIZE (op_mode));
-             if (val & (1 << (GET_MODE_BITSIZE (op_mode) - 1)))
-               val -= 1 << GET_MODE_BITSIZE (op_mode);
+             val
+               = arg0 & ~((HOST_WIDE_INT) (-1) << GET_MODE_BITSIZE (op_mode));
+             if (val
+                 & ((HOST_WIDE_INT) 1 << (GET_MODE_BITSIZE (op_mode) - 1)))
+               val -= (HOST_WIDE_INT) 1 << GET_MODE_BITSIZE (op_mode);
            }
          else
            return 0;