https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100150
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |amacleod at redhat dot com
--- Comment #16 from Martin Liška <marxin at gcc dot gnu.org> ---
> Looking at the git diff releases/gcc-11.1.0..releases/gcc-11.2.0, I don't
> see any LTO-related change that would break the LTO stream. But it may come
> from a FE.
This one is caused by change here:
commit 52f0aa4dee8401ef3958dbf789780b0ee877beab
Author: Andrew MacLeod <[email protected]>
Date: Mon Jun 7 13:18:55 2021 -0400
Implement a sparse bitmap representation for Rangers on-entry cache.
Use a sparse representation for the on entry cache, and utilize it when
the number of basic blocks in the function exceeds
param_evrp_sparse_threshold.
PR tree-optimization/100299
* gimple-range-cache.cc (class sbr_sparse_bitmap): New.
(sbr_sparse_bitmap::sbr_sparse_bitmap): New.
(sbr_sparse_bitmap::bitmap_set_quad): New.
(sbr_sparse_bitmap::bitmap_get_quad): New.
(sbr_sparse_bitmap::set_bb_range): New.
(sbr_sparse_bitmap::get_bb_range): New.
(sbr_sparse_bitmap::bb_range_p): New.
(block_range_cache::block_range_cache): initialize bitmap obstack.
(block_range_cache::~block_range_cache): Destruct obstack.
(block_range_cache::set_bb_range): Decide when to utilze the
sparse on entry cache.
* gimple-range-cache.h (block_range_cache): Add bitmap obstack.
* params.opt (-param=evrp-sparse-threshold): New.
