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6384206: Phis which are later unneeded are impairing our ability to inline based on static types

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Reviewed-by: rasbold, jrose
This commit is contained in:
Tom Rodriguez 2008-09-17 12:59:52 -07:00
parent eee15b163e
commit 4b1e242299
18 changed files with 1082 additions and 401 deletions
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37
hotspot/src/share/vm/opto/bytecodeInfo.cpp
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@ -25,19 +25,6 @@
#include "incls/_precompiled.incl"
#include "incls/_bytecodeInfo.cpp.incl"
// These variables are declared in parse1.cpp
extern int explicit_null_checks_inserted;
extern int explicit_null_checks_elided;
extern int explicit_null_checks_inserted_old;
extern int explicit_null_checks_elided_old;
extern int nodes_created_old;
extern int nodes_created;
extern int methods_parsed_old;
extern int methods_parsed;
extern int methods_seen;
extern int methods_seen_old;
//=============================================================================
//------------------------------InlineTree-------------------------------------
InlineTree::InlineTree( Compile* c, const InlineTree *caller_tree, ciMethod* callee, JVMState* caller_jvms, int caller_bci, float site_invoke_ratio )
@ -517,27 +504,3 @@ InlineTree* InlineTree::find_subtree_from_root(InlineTree* root, JVMState* jvms,
}
return iltp;
}
// ----------------------------------------------------------------------------
#ifndef PRODUCT
static void per_method_stats() {
// Compute difference between this method's cumulative totals and old totals
int explicit_null_checks_cur = explicit_null_checks_inserted - explicit_null_checks_inserted_old;
int elided_null_checks_cur = explicit_null_checks_elided - explicit_null_checks_elided_old;
// Print differences
if( explicit_null_checks_cur )
tty->print_cr("XXX Explicit NULL checks inserted: %d", explicit_null_checks_cur);
if( elided_null_checks_cur )
tty->print_cr("XXX Explicit NULL checks removed at parse time: %d", elided_null_checks_cur);
// Store the current cumulative totals
nodes_created_old = nodes_created;
methods_parsed_old = methods_parsed;
methods_seen_old = methods_seen;
explicit_null_checks_inserted_old = explicit_null_checks_inserted;
explicit_null_checks_elided_old = explicit_null_checks_elided;
}
#endif