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Remove --param max-fsm-thread-length 

This removes max-fsm-thread-length which is obsoleted by
max-jump-thread-paths.

	* doc/invoke.texi (max-fsm-thread-length): Remove.
	* params.opt (max-fsm-thread-length): Likewise.
	* tree-ssa-threadbackward.cc
	(back_threader_profitability::profitable_path_p): Do not
	check max-fsm-thread-length.
This commit is contained in:
Richard Biener 2022-08-08 14:04:43 +02:00
parent 409978d58d
commit c64ef5cd92
3 changed files with 0 additions and 16 deletions
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3
gcc/doc/invoke.texi
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@ -15262,9 +15262,6 @@ Emit instrumentation calls to __tsan_func_entry() and __tsan_func_exit().
Maximum number of instructions to copy when duplicating blocks on a
finite state automaton jump thread path.
@item max-fsm-thread-length
Maximum number of basic blocks on a jump thread path.
@item threader-debug
threader-debug=[none|all] Enables verbose dumping of the threader solver.

4
gcc/params.opt
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@ -498,10 +498,6 @@ The maximum number of nested indirect inlining performed by early inliner.
Common Joined UInteger Var(param_max_fields_for_field_sensitive) Param
Maximum number of fields in a structure before pointer analysis treats the structure as a single variable.
-param=max-fsm-thread-length=
Common Joined UInteger Var(param_max_fsm_thread_length) Init(10) IntegerRange(1, 999999) Param Optimization
Maximum number of basic blocks on a jump thread path.
-param=max-fsm-thread-path-insns=
Common Joined UInteger Var(param_max_fsm_thread_path_insns) Init(100) IntegerRange(1, 999999) Param Optimization
Maximum number of instructions to copy when duplicating blocks on a finite state automaton jump thread path.

9
gcc/tree-ssa-threadbackward.cc
View File

@ -569,15 +569,6 @@ back_threader_profitability::profitable_path_p (const vec<basic_block> &m_path,
if (m_path.length () <= 1)
return false;
if (m_path.length () > (unsigned) param_max_fsm_thread_length)
{
if (dump_file && (dump_flags & TDF_DETAILS))
fprintf (dump_file, " FAIL: Jump-thread path not considered: "
"the number of basic blocks on the path "
"exceeds PARAM_MAX_FSM_THREAD_LENGTH.\n");
return false;
}
int n_insns = 0;
gimple_stmt_iterator gsi;
loop_p loop = m_path[0]->loop_father;