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| author | bernds <bernds@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-06-04 12:44:01 +0000 |
|---|---|---|
| committer | bernds <bernds@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-06-04 12:44:01 +0000 |
| commit | 4164ad584ebdc233ba487903d919c730768c82d3 (patch) | |
| tree | 2c2e8b8f4d4f62d949c6bbb9dc5113108d6f3f8e /gcc/reload.h | |
| parent | 54007dc20d11032a1c3b28dec962c3cc48344d7c (diff) | |
| download | gcc-4164ad584ebdc233ba487903d919c730768c82d3.tar.gz | |
PR rtl-optimization/39871
PR rtl-optimization/40615
PR rtl-optimization/42500
PR rtl-optimization/42502
* ira.c (init_reg_equiv_memory_loc: New function.
(ira): Call it twice.
* reload.h (calculate_elim_costs_all_insns): Declare.
* ira-costs.c: Include "reload.h".
(regno_equiv_gains): New static variable.
(init_costs): Allocate it.
(finish_costs): Free it.
(ira_costs): Call calculate_elim_costs_all_insns.
(find_costs_and_classes): Take estimated elimination costs
into account.
(ira_adjust_equiv_reg_cost): New function.
* ira.h (ira_adjust_equiv_reg_cost): Declare it.
* reload1.c (init_eliminable_invariants, free_reg_equiv,
elimination_costs_in_insn, note_reg_elim_costly): New static
functions.
(elim_bb): New static variable.
(reload): Move code out of here into init_eliminable_invariants and
free_reg_equiv. Call them.
(calculate_elim_costs_all_insns): New function.
(eliminate_regs_1): Declare. Add extra arg FOR_COSTS;
all callers changed. If FOR_COSTS is true, don't call alter_reg,
but call note_reg_elim_costly if we turned a valid memory address
into an invalid one.
* Makefile.in (ira-costs.o): Depend on reload.h.
testsuite/
PR rtl-optimization/39871
PR rtl-optimization/40615
PR rtl-optimization/42500
PR rtl-optimization/42502
* gcc.target/arm/eliminate.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@160260 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/reload.h')
| -rw-r--r-- | gcc/reload.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/reload.h b/gcc/reload.h index a28567014d3..8168b51f020 100644 --- a/gcc/reload.h +++ b/gcc/reload.h @@ -349,6 +349,10 @@ extern void mark_home_live (int); extern rtx eliminate_regs (rtx, enum machine_mode, rtx); extern bool elimination_target_reg_p (rtx); +/* Called from the register allocator to estimate costs of eliminating + invariant registers. */ +extern void calculate_elim_costs_all_insns (void); + /* Deallocate the reload register used by reload number R. */ extern void deallocate_reload_reg (int r); |