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| author | Aldy Hernandez <aldyh@redhat.com> | 2021-08-05 08:01:47 +0200 |
|---|---|---|
| committer | Aldy Hernandez <aldyh@redhat.com> | 2021-08-12 20:27:56 +0200 |
| commit | 34cd97ff94bdb43e8c9de150f1d89527fc42138e (patch) | |
| tree | 6927f760e70f7c1f8dc1fb5fccb706bdd88da16e /gcc/doc | |
| parent | d3a7fbcb7c7a1016ceac2ceaf79b28c17ce9fcd7 (diff) | |
| download | gcc-34cd97ff94bdb43e8c9de150f1d89527fc42138e.zip gcc-34cd97ff94bdb43e8c9de150f1d89527fc42138e.tar.gz gcc-34cd97ff94bdb43e8c9de150f1d89527fc42138e.tar.bz2 | |
Remove legacy back threader.
At this point I don't see any use for the legacy mode, which I had
originally left in place during the transition.
This patch removes the legacy back threader, and cleans up the code a
bit. There are no functional changes to the non-legacy code.
Tested on x86-64 Linux.
gcc/ChangeLog:
* doc/invoke.texi: Remove docs for threader-mode param.
* flag-types.h (enum threader_mode): Remove.
* params.opt: Remove threader-mode param.
* tree-ssa-threadbackward.c (class back_threader): Remove
path_is_unreachable_p.
Make find_paths private.
Add maybe_thread and thread_through_all_blocks.
Remove reference marker for m_registry.
Remove reference marker for m_profit.
(back_threader::back_threader): Adjust for registry and profit not
being references.
(dump_path): Move down.
(debug): Move down.
(class thread_jumps): Remove.
(class back_threader_registry): Remove m_all_paths.
Remove destructor.
(thread_jumps::thread_through_all_blocks): Move to back_threader
class.
(fsm_find_thread_path): Remove
(back_threader::maybe_thread): New.
(back_threader::thread_through_all_blocks): Move from
thread_jumps.
(back_threader_registry::back_threader_registry): Remove
m_all_paths.
(back_threader_registry::~back_threader_registry): Remove.
(thread_jumps::find_taken_edge): Remove.
(thread_jumps::check_subpath_and_update_thread_path): Remove.
(thread_jumps::maybe_register_path): Remove.
(thread_jumps::handle_phi): Remove.
(handle_assignment_p): Remove.
(thread_jumps::handle_assignment): Remove.
(thread_jumps::fsm_find_control_statement_thread_paths): Remove.
(thread_jumps::find_jump_threads_backwards): Remove.
(thread_jumps::find_jump_threads_backwards_with_ranger): Remove.
(try_thread_blocks): Rename find_jump_threads_backwards to
maybe_thread.
(pass_early_thread_jumps::execute): Same.
gcc/testsuite/ChangeLog:
* gcc.dg/tree-ssa/ssa-dom-thread-7.c: Remove call into the legacy
code and adjust for ranger threader.
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/invoke.texi | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index a64cec5..57b97a0 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -13421,9 +13421,6 @@ Setting to 0 disables the analysis completely. @item modref-max-escape-points Specifies the maximum number of escape points tracked by modref per SSA-name. -@item threader-mode -Specifies the mode the backwards threader should run in. - @item profile-func-internal-id A parameter to control whether to use function internal id in profile database lookup. If the value is 0, the compiler uses an id that |