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| author | Easwaran Raman <eraman@google.com> | 2012-10-16 05:28:08 +0000 |
|---|---|---|
| committer | Easwaran Raman <eraman@gcc.gnu.org> | 2012-10-16 05:28:08 +0000 |
| commit | a4da41e1279cf8bf84fc0a0d4e3af5c5e297c011 (patch) | |
| tree | 73e706f18d0cfa88bafa5eb814ff70dbc3d9885c /gcc/except.c | |
| parent | 07a1164095855c3556b24245e6d89a2f59b626b0 (diff) | |
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[multiple changes]
2012-10-15 Easwaran Raman <eraman@google.com>
* optabs.c (emit_cmp_and_jump_insn_1): Add a new parameter to
specificy the probability of taking the jump.
(emit_cmp_and_jump_insns): Likewise.
(expand_compare_and_swap_loop): Make the jump predicted not taken.
* dojump.c (do_compare_rtx_and_jump): Remove the code attaching
REG_BR_PROB note and pass probability to emit_cmp_and_jump_insns.
* cfgbuild.c (compute_outgoing_frequencies): Do not guess outgoing
probabilities for branches with more than two successors.
* expr.c (emit_block_move_via_loop): Predict the loop backedge loop
to be highly taken.
(try_casesi): Pass the probability of jumping to the default label.
(try_tablejump): Likewise.
(do_tablejump): Likewise.
* expr.h (try_tablejump): Add a new parameter.
(try_casesi): Likewise.
(emit_cmp_and_jump_insns): Add probability as default parameter with a
default value of -1.
* except.c (sjlj_emit_function_enter): Pass probability to
emit_cmp_and_jump_insns.
* stmt.c (case_node): Add new fields PROB and SUBTREE_PROB.
(do_jump_if_equal): Pass probability for REG_BR_PROB note.
(add_case_node): Pass estimated probability of jumping to the case
label.
(emit_case_decision_tree): Pass default_prob to emit_case_nodes.
(get_outgoing_edge_probs): New function.
(conditional_probability): Likewise.
(reset_out_edges_aux): Likewise.
(compute_cases_per_edge): Likewise.
(emit_case_dispatch_table): Update probabilities of edges coming out
of the switch statement.
(expand_case): Compute and propagate default edge probability to
emit_case_dispatch_table.
(expand_sjlj_dispatch_table): Update calls to add_case_node and
emit_case_dispatch_table.
(balance_case_nodes): Update subtree_prob values.
(emit_case_nodes): Compute edge probabilities and add pass them to
emit_cmp_and_jump_insns.
testsuite/ChangeLog:
2012-10-15 Easwaran Raman <eraman@google.com>
* gcc.dg/tree-prof/switch-case-1.c: New test case.
* gcc.dg/tree-prof/switch-case-2.c: New test case.
From-SVN: r192488
Diffstat (limited to 'gcc/except.c')
| -rw-r--r-- | gcc/except.c | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/gcc/except.c b/gcc/except.c index 88cac85..adafe8c 100644 --- a/gcc/except.c +++ b/gcc/except.c @@ -1161,13 +1161,7 @@ sjlj_emit_function_enter (rtx dispatch_label) emit_cmp_and_jump_insns (x, const0_rtx, NE, 0, TYPE_MODE (integer_type_node), 0, - dispatch_label); - last = get_last_insn (); - if (JUMP_P (last) && any_condjump_p (last)) - { - gcc_assert (!find_reg_note (last, REG_BR_PROB, 0)); - add_reg_note (last, REG_BR_PROB, GEN_INT (REG_BR_PROB_BASE / 100)); - } + dispatch_label, REG_BR_PROB_BASE / 100); #else expand_builtin_setjmp_setup (plus_constant (Pmode, XEXP (fc, 0), sjlj_fc_jbuf_ofs), |