diff options
| author | rakdver <rakdver@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-04-17 16:42:29 +0000 |
|---|---|---|
| committer | rakdver <rakdver@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-04-17 16:42:29 +0000 |
| commit | 25153338ebbedbe0f614bc9b994fa72c6fb38699 (patch) | |
| tree | 0a31c59ebc8695e61c56119d3a3890c7117e0a43 /gcc/cfgloop.h | |
| parent | b9c7fce7adefe388cca987a0633e2e80be25084e (diff) | |
| download | gcc-25153338ebbedbe0f614bc9b994fa72c6fb38699.tar.gz | |
PR rtl-optimization/31360
* cfgloopanal.c (target_small_cost, target_pres_cost): Removed.
(target_reg_cost): New.
(init_set_costs): Initialize target_reg_cost. Add comments
regarding the rationale of the costs.
(global_cost_for_size): Renamed to...
(estimate_reg_pressure_cost): ... and simplify. Decrease importance
of register pressure.
* tree-ssa-loop-ivopts.c (ivopts_global_cost_for_size): Use
estimate_reg_pressure_cost. Add number of ivs.
(determine_set_costs): Dump target_reg_cost.
* loop-invariant.c (gain_for_invariant): Use
estimate_reg_pressure_cost. Removed n_inv_uses argument.
(best_gain_for_invariant, find_invariants_to_move): Remove
n_inv_uses.
* cfgloop.h (target_small_cost, target_pres_cost): Removed.
(target_reg_cost): Declare.
(global_cost_for_size): Declaration removed.
(estimate_reg_pressure_cost): Declare.
* gcc.dg/loop-7.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@123919 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/cfgloop.h')
| -rw-r--r-- | gcc/cfgloop.h | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/gcc/cfgloop.h b/gcc/cfgloop.h index 15d55890f6a..52160635bb9 100644 --- a/gcc/cfgloop.h +++ b/gcc/cfgloop.h @@ -562,18 +562,14 @@ fel_init (loop_iterator *li, loop_p *loop, unsigned flags) /* The properties of the target. */ -extern unsigned target_avail_regs; /* Number of available registers. */ -extern unsigned target_res_regs; /* Number of reserved registers. */ -extern unsigned target_small_cost; /* The cost for register when there - is a free one. */ -extern unsigned target_pres_cost; /* The cost for register when there are - not too many free ones. */ -extern unsigned target_spill_cost; /* The cost for register when we need - to spill. */ +extern unsigned target_avail_regs; +extern unsigned target_res_regs; +extern unsigned target_reg_cost; +extern unsigned target_spill_cost; /* Register pressure estimation for induction variable optimizations & loop invariant motion. */ -extern unsigned global_cost_for_size (unsigned, unsigned, unsigned); +extern unsigned estimate_reg_pressure_cost (unsigned, unsigned); extern void init_set_costs (void); /* Loop optimizer initialization. */ |