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7163534: VM could crashes assert(false) failed: infinite EA connection graph build

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In case of time or iterations limit reached C2 stops EA and continue compilation without EA as it does in product VM already.

Reviewed-by: twisti
This commit is contained in:
Vladimir Kozlov 2012-10-25 17:32:03 -07:00
parent 6d94ef1ee7
commit 4531e51fc4
2 changed files with 4 additions and 1 deletions
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3
hotspot/src/share/vm/opto/c2_globals.hpp
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@ -439,6 +439,9 @@
product(bool, DoEscapeAnalysis, true, \
"Perform escape analysis") \
\
develop(bool, ExitEscapeAnalysisOnTimeout, true, \
"Exit or throw assert in EA when it reaches time limit") \
\
notproduct(bool, PrintEscapeAnalysis, false, \
"Print the results of escape analysis") \
\

2
hotspot/src/share/vm/opto/escape.cpp
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@ -1084,7 +1084,7 @@ bool ConnectionGraph::complete_connection_graph(
C->log()->text("%s", (iterations >= CG_BUILD_ITER_LIMIT) ? "iterations" : "time");
C->log()->end_elem(" limit'");
}
assert(false, err_msg_res("infinite EA connection graph build (%f sec, %d iterations) with %d nodes and worklist size %d",
assert(ExitEscapeAnalysisOnTimeout, err_msg_res("infinite EA connection graph build (%f sec, %d iterations) with %d nodes and worklist size %d",
time.seconds(), iterations, nodes_size(), ptnodes_worklist.length()));
// Possible infinite build_connection_graph loop,
// bailout (no changes to ideal graph were made).