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authorJan Hubicka <hubicka@gcc.gnu.org>2008-03-18 15:21:06 +0000
committerJan Hubicka <hubicka@gcc.gnu.org>2008-03-18 15:21:06 +0000
commit2e28e797125a94c7587b599eba438015fa02e5fe (patch)
treee2ca0569c078a0ce7bcb5fe80388985cdcfbfac8 /gcc/tree.def
parent52f1c7ed4d3ebab5b0b54f567bafbf1c29ccffeb (diff)
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tree-pretty-print.c: Include predict.h.
* tree-pretty-print.c: Include predict.h. (dump_generic_node): Dump predictor. * tree.h (PREDICT_EXPR_OUTCOME, PREDICT_EXPR_PREDICTION): Update. * tree-gimple.c (is_gimple_stmt): Add PREDICT_EXPR. * gimple-low.c (lower_stmt): Likewise. * expr.c (expand_expr_real): Likewise. * predict.c (tree_bb_level_predictions): Use PREDICT_EXPRs and remove them. (build_predict_expr, build_predict_expr): New. * predict.h (predictor_name, build_predict_expr): Update. * c-typeck.c (c_finish_bc_stmt): Add prediction. * gimplify.c (gimplify_expr): Add PREDICT_EXPR. * predict.def (PRED_CONTINUE): Update hitrate. * tree.def (PREDICT_EXPR): Define. * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Mark PREDICT_EXPR; do not handle BIND_EXPR. * tree-inline.c (estimate_num_insns_1): PREDICT_EXPR is free. * tree-cfg.c (verify_gimple_stmt): PREDICT_EXPR is valid. * tree-ssa-operands.c (get_expr_operands): PREDICT_EXPR takes no operands. From-SVN: r133313
Diffstat (limited to 'gcc/tree.def')
-rw-r--r--gcc/tree.def6
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/tree.def b/gcc/tree.def
index 4a55ee0..89c18df 100644
--- a/gcc/tree.def
+++ b/gcc/tree.def
@@ -1170,6 +1170,12 @@ DEFTREECODE (VEC_EXTRACT_ODD_EXPR, "vec_extractodd_expr", tcc_binary, 2)
DEFTREECODE (VEC_INTERLEAVE_HIGH_EXPR, "vec_interleavehigh_expr", tcc_binary, 2)
DEFTREECODE (VEC_INTERLEAVE_LOW_EXPR, "vec_interleavelow_expr", tcc_binary, 2)
+/* PREDICT_EXPR. Specify hint for branch prediction. The
+ PREDICT_EXPR_PREDICTOR specify predictor and PREDICT_EXPR_OUTCOME the
+ outcome (0 for not taken and 1 for taken). Once the profile is guessed
+ all conditional branches leading to execution paths executing the
+ PREDICT_EXPR will get predicted by the specified predictor. */
+DEFTREECODE (PREDICT_EXPR, "predict_expr", tcc_unary, 1)
/*
Local variables:
mode:c