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| author | Martin Liska <mliska@suse.cz> | 2017-06-21 14:52:14 +0200 |
|---|---|---|
| committer | Martin Liska <marxin@gcc.gnu.org> | 2017-06-21 12:52:14 +0000 |
| commit | 93c18375823fdd0e384f673f75e39136719135dd (patch) | |
| tree | d25acabcbf72c143c997ccd8e7b212c5930584ad /gcc/gimplify.c | |
| parent | e59a1c22fb249388e82b4fd004f33615abe36d2e (diff) | |
| download | gcc-93c18375823fdd0e384f673f75e39136719135dd.zip gcc-93c18375823fdd0e384f673f75e39136719135dd.tar.gz gcc-93c18375823fdd0e384f673f75e39136719135dd.tar.bz2 | |
Rework cold and hot label attributes in predict.c.
2017-06-21 Martin Liska <mliska@suse.cz>
* gimplify.c (gimplify_label_expr): Insert GIMPLE_PREDICT
statements on cold and hot labels.
* predict.c (tree_estimate_probability_bb): Remove the
prediction from this place.
2017-06-21 Martin Liska <mliska@suse.cz>
* gcc.dg/tree-ssa/attr-hotcold-2.c: Update scanned patterns.
From-SVN: r249451
Diffstat (limited to 'gcc/gimplify.c')
| -rw-r--r-- | gcc/gimplify.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/gcc/gimplify.c b/gcc/gimplify.c index c645bce..641a821 100644 --- a/gcc/gimplify.c +++ b/gcc/gimplify.c @@ -2357,10 +2357,18 @@ gimplify_label_expr (tree *expr_p, gimple_seq *pre_p) gcc_assert (decl_function_context (LABEL_EXPR_LABEL (*expr_p)) == current_function_decl); - glabel *label_stmt = gimple_build_label (LABEL_EXPR_LABEL (*expr_p)); + tree label = LABEL_EXPR_LABEL (*expr_p); + glabel *label_stmt = gimple_build_label (label); gimple_set_location (label_stmt, EXPR_LOCATION (*expr_p)); gimplify_seq_add_stmt (pre_p, label_stmt); + if (lookup_attribute ("cold", DECL_ATTRIBUTES (label))) + gimple_seq_add_stmt (pre_p, gimple_build_predict (PRED_COLD_LABEL, + NOT_TAKEN)); + else if (lookup_attribute ("hot", DECL_ATTRIBUTES (label))) + gimple_seq_add_stmt (pre_p, gimple_build_predict (PRED_HOT_LABEL, + TAKEN)); + return GS_ALL_DONE; } |