archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-09-20 19:14:38 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

6695810: null oop passed to encode_heap_oop_not_null

Browse source 
Fix several problems in C2 related to Escape Analysis and Compressed Oops.

Reviewed-by: never, jrose
This commit is contained in:
Vladimir Kozlov 2008-05-21 10:45:07 -07:00
parent dbf60cec88
commit 757229db71
19 changed files with 1085 additions and 248 deletions
Download patch file Download diff file Expand all files Collapse all files

8
hotspot/src/share/vm/opto/connode.cpp
View file

@ -578,8 +578,11 @@ Node* DecodeNNode::decode(PhaseGVN* phase, Node* value) {
const Type* newtype = value->bottom_type();
if (newtype == TypeNarrowOop::NULL_PTR) {
return phase->transform(new (phase->C, 1) ConPNode(TypePtr::NULL_PTR));
} else {
} else if (newtype->isa_narrowoop()) {
return phase->transform(new (phase->C, 2) DecodeNNode(value, newtype->is_narrowoop()->make_oopptr()));
} else {
ShouldNotReachHere();
return NULL; // to make C++ compiler happy.
}
}
@ -617,6 +620,9 @@ Node* EncodePNode::encode(PhaseGVN* phase, Node* value) {
}
}
Node *EncodePNode::Ideal_DU_postCCP( PhaseCCP *ccp ) {
return MemNode::Ideal_common_DU_postCCP(ccp, this, in(1));
}
//=============================================================================
//------------------------------Identity---------------------------------------