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| author | Jan Hubicka <jh@suse.cz> | 2001-06-18 17:35:47 +0200 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2001-06-18 15:35:47 +0000 |
| commit | 923cbdc322ee080c02b94a95eece0618a2a78b47 (patch) | |
| tree | 0803743d2349ea46ce205c05df7cae76a3374b1f /gcc/loop.c | |
| parent | 049d2def48689b21149b6a7ad19c865e1d393627 (diff) | |
| download | gcc-923cbdc322ee080c02b94a95eece0618a2a78b47.zip gcc-923cbdc322ee080c02b94a95eece0618a2a78b47.tar.gz gcc-923cbdc322ee080c02b94a95eece0618a2a78b47.tar.bz2 | |
unroll.c: Include predict.h.
* unroll.c: Include predict.h.
(unroll_loop): Drop prediction notes on preconditioning.
* predict.def (PRED_LOOP_PRECONDITIONG, PRED_LOOP_CONDITION):
New; add comments on the others.
* Makefile.in: (unroll.o): Add dependancy on predict.h.
* loop.c (strength_reduce): Fix branch prediction.
* stmt.c (emit_case_nodes): Optimize test whether index is in given
interval.
* predict.c (estimate_probability): Do not bail out early
when note is present.
(combine_predictions_for_insn): Fix note removal code.
From-SVN: r43441
Diffstat (limited to 'gcc/loop.c')
| -rw-r--r-- | gcc/loop.c | 2 |
1 files changed, 1 insertions, 1 deletions
@@ -4505,7 +4505,7 @@ strength_reduce (loop, flags) if ((flags & LOOP_BCT) && loop_info->n_iterations / loop_info->unroll_number > 1) { - int n = loop_info->n_iterations / loop_info->unroll_number - 1; + int n = loop_info->n_iterations / loop_info->unroll_number; predict_insn (PREV_INSN (loop->end), PRED_LOOP_ITERATIONS, REG_BR_PROB_BASE - REG_BR_PROB_BASE / n); |