Mercurial > hg > truffle
changeset 20609:468850e35e48
8062169: Multiple OSR compilations issued for same bci
Summary: Fixed 'SimpleThresholdPolicy::event' to always perform OSR if an OSR nmethod is available.
Reviewed-by: kvn, iveresov
author | thartmann |
---|---|
date | Fri, 31 Oct 2014 12:16:20 +0100 |
parents | 063338b89a56 |
children | d4562805b030 |
files | src/share/vm/runtime/simpleThresholdPolicy.cpp |
diffstat | 1 files changed, 7 insertions(+), 6 deletions(-) [+] |
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--- a/src/share/vm/runtime/simpleThresholdPolicy.cpp Fri Oct 31 11:13:41 2014 -0700 +++ b/src/share/vm/runtime/simpleThresholdPolicy.cpp Fri Oct 31 12:16:20 2014 +0100 @@ -196,7 +196,6 @@ // Don't trigger other compiles in testing mode return NULL; } - nmethod *osr_nm = NULL; handle_counter_overflow(method()); if (method() != inlinee()) { @@ -210,14 +209,16 @@ if (bci == InvocationEntryBci) { method_invocation_event(method, inlinee, comp_level, nm, thread); } else { + // method == inlinee if the event originated in the main method method_back_branch_event(method, inlinee, bci, comp_level, nm, thread); - // method == inlinee if the event originated in the main method - int highest_level = inlinee->highest_osr_comp_level(); - if (highest_level > comp_level) { - osr_nm = inlinee->lookup_osr_nmethod_for(bci, highest_level, false); + // Check if event led to a higher level OSR compilation + nmethod* osr_nm = inlinee->lookup_osr_nmethod_for(bci, comp_level, false); + if (osr_nm != NULL && osr_nm->comp_level() > comp_level) { + // Perform OSR with new nmethod + return osr_nm; } } - return osr_nm; + return NULL; } // Check if the method can be compiled, change level if necessary