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6743900: frequency based block layout

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Post-register allocation pass that drives block layout by edge frequencies

Reviewed-by: never, kvn
This commit is contained in:
Chuck Rasbold 2008-11-06 14:59:10 -08:00
parent 7bcfb5965d
commit 0e63b7609a
9 changed files with 1003 additions and 134 deletions
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3
hotspot/src/share/vm/opto/compile.hpp
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@ -154,6 +154,7 @@ class Compile : public Phase {
uint _decompile_count; // Cumulative decompilation counts.
bool _do_inlining; // True if we intend to do inlining
bool _do_scheduling; // True if we intend to do scheduling
bool _do_freq_based_layout; // True if we intend to do frequency based block layout
bool _do_count_invocations; // True if we generate code to count invocations
bool _do_method_data_update; // True if we generate code to update methodDataOops
int _AliasLevel; // Locally-adjusted version of AliasLevel flag.
@ -307,6 +308,8 @@ class Compile : public Phase {
void set_do_inlining(bool z) { _do_inlining = z; }
bool do_scheduling() const { return _do_scheduling; }
void set_do_scheduling(bool z) { _do_scheduling = z; }
bool do_freq_based_layout() const{ return _do_freq_based_layout; }
void set_do_freq_based_layout(bool z){ _do_freq_based_layout = z; }
bool do_count_invocations() const{ return _do_count_invocations; }
void set_do_count_invocations(bool z){ _do_count_invocations = z; }
bool do_method_data_update() const { return _do_method_data_update; }