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| author | Zdenek Dvorak <rakdver@atrey.karlin.mff.cuni.cz> | 2004-09-14 10:05:46 +0200 |
|---|---|---|
| committer | Zdenek Dvorak <rakdver@gcc.gnu.org> | 2004-09-14 08:05:46 +0000 |
| commit | 113d659afd84f30c2baff7da16adc4d56602f895 (patch) | |
| tree | 5c0e5b9524b1674de9c53a236c486fe4455d642b /gcc/common.opt | |
| parent | d840495b15862ef5d62af317e76be37d71948540 (diff) | |
| download | gcc-113d659afd84f30c2baff7da16adc4d56602f895.zip gcc-113d659afd84f30c2baff7da16adc4d56602f895.tar.gz gcc-113d659afd84f30c2baff7da16adc4d56602f895.tar.bz2 | |
Makefile.in (loop-unroll.o): Add HASHTAB_H and RECOG_H dependency.
* Makefile.in (loop-unroll.o): Add HASHTAB_H and RECOG_H dependency.
* basic-block.h (struct reorder_block_def): Add copy_number field.
* cfgloop.h (biv_p): Declare.
* cfgloopmanip.c (duplicate_loop_to_header_edge): Set copy_number.
* common.opt (fsplit-ivs-in-unroller): New flag.
* loop-iv.c (biv_p): New function.
* loop-unroll.c: Include hashtab.h and recog.h.
(struct iv_to_split, struct split_ivs_info): New types.
(analyze_ivs_to_split, si_info_start_duplication, split_ivs_in_copies,
free_si_info, si_info_hash, si_info_eq, analyze_iv_to_split_insn,
determine_split_iv_delta, get_ivts_expr, allocate_basic_variable,
insert_base_initialization, split_iv): New functions.
(peel_loop_completely, unroll_loop_constant_iterations,
unroll_loop_runtime_iterations, peel_loop_simple, unroll_loop_stupid):
Use them.
* doc/invoke.texi (-fsplit-ivs-in-unroller): Document.
Co-Authored-By: Steven Bosscher <stevenb@suse.de>
From-SVN: r87487
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 5e37cb9..5739c1b 100644 --- a/gcc/common.opt +++ b/gcc/common.opt @@ -744,6 +744,10 @@ fspeculative-prefetching Common Report Var(flag_speculative_prefetching) Use value profiling for speculative prefetching +fsplit-ivs-in-unroller +Common Report Var(flag_split_ivs_in_unroller) Init(1) +Split lifetimes of induction variables 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 |