On Thu, Sep 10, 2020 at 05:32:58PM +0200, Jakub Jelinek via Gcc-patches wrote:
> 2020-09-10 Jakub Jelinek <ja...@redhat.com>
>
> * lto-streamer-out.c (collect_block_tree_leafs): Recurse on
> root rather than BLOCK_SUBBLOCKS (root).
>
> --- gcc/lto-streamer-out.c.jj 2020-09-10 15:52:36.401413518 +0200
> +++ gcc/lto-streamer-out.c 2020-09-10 17:14:24.934503237 +0200
> @@ -2294,7 +2294,7 @@ collect_block_tree_leafs (tree root, vec
> if (! BLOCK_SUBBLOCKS (root))
> leafs.safe_push (root);
> else
> - collect_block_tree_leafs (BLOCK_SUBBLOCKS (root), leafs);
> + collect_block_tree_leafs (root, leafs);
> }
>
> /* This performs function body modifications that are needed for streaming
Successfully lto-bootstrapped/regtested on x86_64-linux. As a very rough
estimate
(not exactly the same tree, 22 hours appart), *.o files in the stage3 directory
grew
from 522432KB to 524760KB together (slim LTO), so 0.4% growth.
Jakub
