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6854812: 6.0_14-b08 crashes with a SIGSEGV

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Reviewed-by: kvn, twisti
This commit is contained in:
Tom Rodriguez 2009-09-16 11:06:10 -07:00
parent 47c425506d
commit 7437f0b825
4 changed files with 29 additions and 6 deletions
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16
hotspot/src/share/vm/ci/ciMethod.cpp
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@ -325,10 +325,10 @@ ciTypeFlow* ciMethod::get_osr_flow_analysis(int osr_bci) {
}
// ------------------------------------------------------------------
// ciMethod::liveness_at_bci
// ciMethod::raw_liveness_at_bci
//
// Which local variables are live at a specific bci?
MethodLivenessResult ciMethod::liveness_at_bci(int bci) {
MethodLivenessResult ciMethod::raw_liveness_at_bci(int bci) {
check_is_loaded();
if (_liveness == NULL) {
// Create the liveness analyzer.
@ -336,7 +336,17 @@ MethodLivenessResult ciMethod::liveness_at_bci(int bci) {
_liveness = new (arena) MethodLiveness(arena, this);
_liveness->compute_liveness();
}
MethodLivenessResult result = _liveness->get_liveness_at(bci);
return _liveness->get_liveness_at(bci);
}
// ------------------------------------------------------------------
// ciMethod::liveness_at_bci
//
// Which local variables are live at a specific bci? When debugging
// will return true for all locals in some cases to improve debug
// information.
MethodLivenessResult ciMethod::liveness_at_bci(int bci) {
MethodLivenessResult result = raw_liveness_at_bci(bci);
if (CURRENT_ENV->jvmti_can_access_local_variables() || DeoptimizeALot || CompileTheWorld) {
// Keep all locals live for the user's edification and amusement.
result.at_put_range(0, result.size(), true);