loop_size Struct Reference

Data Fields
int	overall
int	eliminated_by_peeling
int	last_iteration
int	last_iteration_eliminated_by_peeling
bool	constant_iv
int	num_pure_calls_on_hot_path
int	num_non_pure_calls_on_hot_path
int	non_call_stmts_on_hot_path
int	num_branches_on_hot_path

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Detailed Description

Describe size of loop as detected by tree_estimate_loop_size.

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Field Documentation

bool loop_size::constant_iv

If some IV computation will become constant.

int loop_size::eliminated_by_peeling

Number of instructions that will be likely optimized out in peeled iterations of loop (i.e. computation based on induction variable where induction variable starts at known constant.)

int loop_size::last_iteration

Same statistics for last iteration of loop: it is smaller because instructions after exit are not executed.

int loop_size::last_iteration_eliminated_by_peeling

int loop_size::non_call_stmts_on_hot_path

Number of statements other than calls in the loop.

int loop_size::num_branches_on_hot_path

Number of branches seen on the hot path.

int loop_size::num_non_pure_calls_on_hot_path

Number of call stmts that are not a builtin and are not pure nor const present on the hot path.

int loop_size::num_pure_calls_on_hot_path

Number of call stmts that are not a builtin and are pure or const present on the hot path.

int loop_size::overall

Number of instructions in the loop.

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The documentation for this struct was generated from the following file:

• tree-ssa-loop-ivcanon.c