tree-ssa-reassoc.h File Reference

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Data Structures
struct	operand_entry
struct	range_entry

Functions
void	dump_range_entry (FILE *file, struct range_entry *r)
void	debug_range_entry (struct range_entry *r)
void	init_range_entry (struct range_entry *r, tree exp, gimple *stmt)
bool	no_side_effect_bb (basic_block bb)

Function Documentation

debug_range_entry()

void debug_range_entry

(

struct range_entry *

r

)

Dump the range entry R to STDERR.   

References dump_range_entry(), fputc(), ggc_alloc(), and r.

dump_range_entry()

void dump_range_entry	(	FILE *	file,
		struct range_entry *	r )

init_range_entry()

void init_range_entry	(	struct range_entry *	r,
		tree	exp,
		gimple *	stmt )

This is similar to make_range in fold-const.cc, but on top of
GIMPLE instead of trees.  If EXP is non-NULL, it should be
an SSA_NAME and STMT argument is ignored, otherwise STMT
argument should be a GIMPLE_COND.   

References boolean_false_node, boolean_type_node, build_int_cst(), CASE_CONVERT, exp(), gcc_assert, ggc_alloc(), gimple_assign_rhs1(), gimple_assign_rhs2(), gimple_assign_rhs_code(), gimple_cond_code(), gimple_cond_lhs(), gimple_cond_rhs(), gimple_location(), integer_onep(), integer_zerop(), INTEGRAL_TYPE_P, is_gimple_assign(), make_range_step(), NULL_TREE, r, SSA_NAME_DEF_STMT, ssa_name_maybe_undef_p(), SSA_NAME_OCCURS_IN_ABNORMAL_PHI, TREE_CODE, TREE_TYPE, TYPE_PRECISION, and TYPE_UNSIGNED.

Referenced by find_conditions(), and optimize_range_tests().

no_side_effect_bb()

bool no_side_effect_bb

(

basic_block

bb

)

Return true if BB doesn't have side-effects that would disallow
range test optimization, all SSA_NAMEs set in the bb are consumed
in the bb and there are no PHIs.   

References FOR_EACH_IMM_USE_FAST, ggc_alloc(), gimple_assign_lhs(), gimple_assign_rhs_could_trap_p(), gimple_bb(), gimple_has_side_effects(), gimple_seq_empty_p(), gsi_end_p(), gsi_next(), gsi_start_bb(), gsi_stmt(), is_gimple_assign(), is_gimple_debug(), last, last_nondebug_stmt(), phi_nodes(), TREE_CODE, and USE_STMT.

Referenced by find_conditions(), and maybe_optimize_range_tests().