Mercurial > hg > truffle
changeset 13642:10f943c778f6
Add code to trace uncollected speculations
author | Gilles Duboscq <duboscq@ssw.jku.at> |
---|---|
date | Thu, 12 Dec 2013 15:31:24 +0100 |
parents | 5a9afbf72714 |
children | 4463c520f475 |
files | src/share/vm/graal/graalGlobals.hpp src/share/vm/runtime/deoptimization.cpp |
diffstat | 2 files changed, 8 insertions(+), 0 deletions(-) [+] |
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--- a/src/share/vm/graal/graalGlobals.hpp Thu Dec 12 15:13:02 2013 +0100 +++ b/src/share/vm/graal/graalGlobals.hpp Thu Dec 12 15:31:24 2013 +0100 @@ -76,6 +76,9 @@ notproduct(bool, GraalPrintSimpleStubs, false, \ "Print simple Graal stubs") \ \ + develop(bool, TraceUncollectedSpeculations, false, \ + "Print message when a failed speculation was not collected") \ + \ // Read default values for Graal globals
--- a/src/share/vm/runtime/deoptimization.cpp Thu Dec 12 15:13:02 2013 +0100 +++ b/src/share/vm/runtime/deoptimization.cpp Thu Dec 12 15:31:24 2013 +0100 @@ -1373,6 +1373,11 @@ if (speculation != NULL) { oop speculation_log = nm->speculation_log(); if (speculation_log != NULL) { + if (TraceUncollectedSpeculations) { + if (SpeculationLog::lastFailed(speculation_log) != NULL) { + tty->print_cr("A speculation that was not collected by the compiler is being overwritten"); + } + } SpeculationLog::set_lastFailed(speculation_log, speculation); } thread->set_pending_failed_speculation(NULL);