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| author | hagog <hagog@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-10-18 05:31:28 +0000 |
|---|---|---|
| committer | hagog <hagog@138bc75d-0d04-0410-961f-82ee72b054a4> | 2004-10-18 05:31:28 +0000 |
| commit | 375bb675bbe7f76b0633c10f2429ac9a4b7a480f (patch) | |
| tree | 659451af0eb92e8412fce0e70aaf671611d128e4 /gcc/common.opt | |
| parent | 1cc37be8224bb933d21384fff7a2b57c96d96408 (diff) | |
| download | gcc-375bb675bbe7f76b0633c10f2429ac9a4b7a480f.tar.gz | |
2004-10-18 Revital Eres <eres@il.ibm.com>
* Makefile.in (loop-unroll.o): Add VARRAY_H dependency.
* loop-unroll.c: Include varray.h.
(struct var_to_expand, struct opt_info): Rename split_ivs_info to
opt_info and expand it to support variable expansion.
(analyze_insns_in_loop): Rename analyze_ivs_to_split and
expand it to support variable expansion.
(pt_info_start_duplication): Rename si_info_start_duplication.
(apply_opt_in_copies): Rename split_ivs_in_copies and add support
to the variable expansion optimization.
(free_opt_info): Rename free_si_info.
(analyze_insn_to_expand_var, referenced_in_one_insn_in_loop_p,
expand_var_during_unrolling, insert_var_expansion_initialization,
combine_var_copies_in_loop_exit, release_var_copies,
get_expansion): New functions.
(peel_loop_completely, unroll_loop_constant_iterations,
unroll_loop_runtime_iterations, peel_loop_simple,
unroll_loop_stupid): Change uses of struct si_info
to struct opt_info
and add uses of fvariable-expansion-in-unroller flag.
* params.def: Add parameter to restrict the number of expansions.
* params.h: (MAX_VARIABLE_EXPANSIONS): New define to restrict
the number of expansions.
* common.opt: (fvariable-expansion-in-unroller): New flag.
* doc/invoke.texi: (fvariable-expansion-in-unroller): Document.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@89197 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/common.opt')
| -rw-r--r-- | gcc/common.opt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/common.opt b/gcc/common.opt index 2c5538c4a3e..4d9f184a743 100644 --- a/gcc/common.opt +++ b/gcc/common.opt @@ -748,6 +748,10 @@ fsplit-ivs-in-unroller Common Report Var(flag_split_ivs_in_unroller) Init(1) Split lifetimes of induction variables when loops are unrolled. +fvariable-expansion-in-unroller +Common Report Var(flag_variable_expansion_in_unroller) +Apply variable expansion when loops are unrolled. + ; Emit code to probe the stack, to help detect stack overflow; also ; may cause large objects to be allocated dynamically. fstack-check |