stan/jdk-24
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

6730192: expression stack wrong at deoptimization point

Browse Source 
Add safepoint before popping expression stack, not after

Reviewed-by: kvn
This commit is contained in:
Chuck Rasbold 2008-07-29 14:48:25 -07:00
parent 50c4a23cac
commit d35e1bbd88
1 changed files with 8 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
hotspot/src/share/vm/opto/parse2.cpp
View File

@ -925,9 +925,6 @@ void Parse::do_ifnull(BoolTest::mask btest, Node *c) {
return;
}
// If this is a backwards branch in the bytecodes, add Safepoint
maybe_add_safepoint(target_bci);
explicit_null_checks_inserted++;
// Generate real control flow
@ -1009,9 +1006,6 @@ void Parse::do_if(BoolTest::mask btest, Node* c) {
return;
}
// If this is a backwards branch in the bytecodes, add Safepoint
maybe_add_safepoint(target_bci);
// Sanity check the probability value
assert(0.0f < prob && prob < 1.0f,"Bad probability in Parser");
@ -2100,6 +2094,8 @@ void Parse::do_one_bytecode() {
case Bytecodes::_ifnull: btest = BoolTest::eq; goto handle_if_null;
case Bytecodes::_ifnonnull: btest = BoolTest::ne; goto handle_if_null;
handle_if_null:
// If this is a backwards branch in the bytecodes, add Safepoint
maybe_add_safepoint(iter().get_dest());
a = null();
b = pop();
c = _gvn.transform( new (C, 3) CmpPNode(b, a) );
@ -2109,6 +2105,8 @@ void Parse::do_one_bytecode() {
case Bytecodes::_if_acmpeq: btest = BoolTest::eq; goto handle_if_acmp;
case Bytecodes::_if_acmpne: btest = BoolTest::ne; goto handle_if_acmp;
handle_if_acmp:
// If this is a backwards branch in the bytecodes, add Safepoint
maybe_add_safepoint(iter().get_dest());
a = pop();
b = pop();
c = _gvn.transform( new (C, 3) CmpPNode(b, a) );
@ -2122,6 +2120,8 @@ void Parse::do_one_bytecode() {
case Bytecodes::_ifgt: btest = BoolTest::gt; goto handle_ifxx;
case Bytecodes::_ifge: btest = BoolTest::ge; goto handle_ifxx;
handle_ifxx:
// If this is a backwards branch in the bytecodes, add Safepoint
maybe_add_safepoint(iter().get_dest());
a = _gvn.intcon(0);
b = pop();
c = _gvn.transform( new (C, 3) CmpINode(b, a) );
@ -2135,6 +2135,8 @@ void Parse::do_one_bytecode() {
case Bytecodes::_if_icmpgt: btest = BoolTest::gt; goto handle_if_icmp;
case Bytecodes::_if_icmpge: btest = BoolTest::ge; goto handle_if_icmp;
handle_if_icmp:
// If this is a backwards branch in the bytecodes, add Safepoint
maybe_add_safepoint(iter().get_dest());
a = pop();
b = pop();
c = _gvn.transform( new (C, 3) CmpINode( b, a ) );