PR c/42312

[pf3gnuchains/gcc-fork.git] / gcc / tree-ssa-loop-niter.c

diff --git a/gcc/tree-ssa-loop-niter.c b/gcc/tree-ssa-loop-niter.c
index 7dbb8c3..48e2045 100644 (file)
--- a/gcc/tree-ssa-loop-niter.c
+++ b/gcc/tree-ssa-loop-niter.c
@@ -94,8 +94,10 @@ split_to_var_and_offset (tree expr, tree *var, mpz_t offset)
 
       *var = op0;
       /* Always sign extend the offset.  */
-      off = double_int_sext (tree_to_double_int (op1),
-                            TYPE_PRECISION (type));
+      off = tree_to_double_int (op1);
+      if (negate)
+       off = double_int_neg (off);
+      off = double_int_sext (off, TYPE_PRECISION (type));
       mpz_set_double_int (offset, off, false);
       break;