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params.def (tracer-min-branch-probability-feedback): Fix default.

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* params.def (tracer-min-branch-probability-feedback): Fix default.
	* final.c (compute_alignments): Use profile to avoid code bloat.

From-SVN: r60413
This commit is contained in:
Jan Hubicka 2002-12-22 18:24:38 +01:00 • committed by Jan Hubicka
parent fba1caab66
commit 66b4e47860
3 changed files with 9 additions and 2 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
Sun Dec 22 18:23:44 CET 2002 Jan Hubicka <jh@suse.cz>
* params.def (tracer-min-branch-probability-feedback): Fix default.
* final.c (compute_alignments): Use profile to avoid code bloat.
2002-12-22 Kazu Hirata <kazu@cs.umass.edu> 2002-12-22 Kazu Hirata <kazu@cs.umass.edu>
* config/h8300/h8300.c (get_shift_alg): Make shift insn * config/h8300/h8300.c (get_shift_alg): Make shift insn

4
gcc/final.c
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@ -677,7 +677,8 @@ compute_alignments ()
int fallthru_frequency = 0, branch_frequency = 0, has_fallthru = 0; int fallthru_frequency = 0, branch_frequency = 0, has_fallthru = 0;
edge e; edge e;
if (GET_CODE (label) != CODE_LABEL) if (GET_CODE (label) != CODE_LABEL
|| probably_never_executed_bb_p (bb))
continue; continue;
max_log = LABEL_ALIGN (label); max_log = LABEL_ALIGN (label);
max_skip = LABEL_ALIGN_MAX_SKIP; max_skip = LABEL_ALIGN_MAX_SKIP;
@ -716,6 +717,7 @@ compute_alignments ()
/* In case block is frequent and reached mostly by non-fallthru edge, /* In case block is frequent and reached mostly by non-fallthru edge,
align it. It is most likely a first block of loop. */ align it. It is most likely a first block of loop. */
if (has_fallthru if (has_fallthru
&& maybe_hot_bb_p (bb)
&& branch_frequency + fallthru_frequency > BB_FREQ_MAX / 10 && branch_frequency + fallthru_frequency > BB_FREQ_MAX / 10
&& branch_frequency > fallthru_frequency * 2) && branch_frequency > fallthru_frequency * 2)
{ {

2
gcc/params.def
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@ -184,7 +184,7 @@ DEFPARAM(TRACER_MIN_BRANCH_PROBABILITY_FEEDBACK,
"tracer-min-branch-probability-feedback", "tracer-min-branch-probability-feedback",
"Stop forward growth if the probability of best edge is less than \ "Stop forward growth if the probability of best edge is less than \
this threshold (in percents). Used when profile feedback is available", this threshold (in percents). Used when profile feedback is available",
30) 80)
DEFPARAM(TRACER_MIN_BRANCH_PROBABILITY, DEFPARAM(TRACER_MIN_BRANCH_PROBABILITY,
"tracer-min-branch-probability", "tracer-min-branch-probability",
"Stop forward growth if the probability of best edge is less than \ "Stop forward growth if the probability of best edge is less than \