archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-09-18 01:54:47 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

8159611: C2: ArrayCopy elimination skips required parameter checks

Browse source 
Reviewed-by: kvn, zmajo, thartmann
This commit is contained in:
Volker Simonis 2016-10-06 18:51:24 +02:00
parent 7bc6ecfba8
commit fcdc3eac28
6 changed files with 146 additions and 10 deletions
Download patch file Download diff file Expand all files Collapse all files

6
hotspot/src/share/vm/opto/arraycopynode.cpp
View file

@ -26,9 +26,10 @@
#include "opto/arraycopynode.hpp"
#include "opto/graphKit.hpp"
ArrayCopyNode::ArrayCopyNode(Compile* C, bool alloc_tightly_coupled)
ArrayCopyNode::ArrayCopyNode(Compile* C, bool alloc_tightly_coupled, bool has_negative_length_guard)
: CallNode(arraycopy_type(), NULL, TypeRawPtr::BOTTOM),
_alloc_tightly_coupled(alloc_tightly_coupled),
_has_negative_length_guard(has_negative_length_guard),
_kind(None),
_arguments_validated(false),
_src_type(TypeOopPtr::BOTTOM),
@ -45,10 +46,11 @@ ArrayCopyNode* ArrayCopyNode::make(GraphKit* kit, bool may_throw,
Node* dest, Node* dest_offset,
Node* length,
bool alloc_tightly_coupled,
bool has_negative_length_guard,
Node* src_klass, Node* dest_klass,
Node* src_length, Node* dest_length) {
ArrayCopyNode* ac = new ArrayCopyNode(kit->C, alloc_tightly_coupled);
ArrayCopyNode* ac = new ArrayCopyNode(kit->C, alloc_tightly_coupled, has_negative_length_guard);
Node* prev_mem = kit->set_predefined_input_for_runtime_call(ac);
ac->init_req(ArrayCopyNode::Src, src);