From 27de742e21eda38d2aff89d07364ec8f961f8e34 Mon Sep 17 00:00:00 2001 From: hexuejin Date: Tue, 25 Jun 2019 21:09:31 +0000 Subject: [PATCH] Backport of JDK-8182036 summary: Load from initializing arraycopy uses wrong memory state LLT: Bug url: https://bugs.openjdk.java.net/browse/JDK-8182036 --- hotspot/src/share/vm/opto/library_call.cpp | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/hotspot/src/share/vm/opto/library_call.cpp b/hotspot/src/share/vm/opto/library_call.cpp index 4379f8359c..ea11a13e70 100644 --- a/hotspot/src/share/vm/opto/library_call.cpp +++ b/hotspot/src/share/vm/opto/library_call.cpp @@ -5723,7 +5723,8 @@ LibraryCallKit::generate_block_arraycopy(const TypePtr* adr_type, ((src_off ^ dest_off) & (BytesPerLong-1)) == 0) { Node* sptr = basic_plus_adr(src, src_off); Node* dptr = basic_plus_adr(dest, dest_off); - Node* sval = make_load(control(), sptr, TypeInt::INT, T_INT, adr_type, MemNode::unordered); + const TypePtr* s_adr_type = _gvn.type(sptr)->is_ptr(); + Node* sval = make_load(control(), sptr, TypeInt::INT, T_INT, s_adr_type, MemNode::unordered); store_to_memory(control(), dptr, sval, T_INT, adr_type, MemNode::unordered); src_off += BytesPerInt; dest_off += BytesPerInt; -- 2.12.3