re PR tree-optimization/77880 (out of memory building recent LLVM on ppc64le with...

	PR tree-optimization/77880
	* expr.c (by_pieces_ninsns): Use unsigned HOST_WIDE_INT where
	necessary.

From-SVN: r240862

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ece1252..e4f5198 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2016-10-07  Bernd Schmidt  <bschmidt@redhat.com>
+
+       PR tree-optimization/77880
+       * expr.c (by_pieces_ninsns): Use unsigned HOST_WIDE_INT where
+       necessary.
+
 2016-10-07  Marek Polacek  <polacek@redhat.com>
 
        PR c++/77803

diff --git a/gcc/expr.c b/gcc/expr.c
index d15e98b..2256ac9 100644 (file)
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -785,7 +785,7 @@ by_pieces_ninsns (unsigned HOST_WIDE_INT l, unsigned int align,
            case COMPARE_BY_PIECES:
              int batch = targetm.compare_by_pieces_branch_ratio (mode);
              int batch_ops = 4 * batch - 1;
-             int full = n_pieces / batch;
+             unsigned HOST_WIDE_INT full = n_pieces / batch;
              n_insns += full * batch_ops;
              if (n_pieces % batch != 0)
                n_insns++;