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8068977: Remove unused sun.misc.Unsafe prefetch intrinsic support

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Reviewed-by: kvn, vlivanov
This commit is contained in:
Paul Sandoz 2015-02-10 21:32:05 +01:00
parent cc1c11c366
commit c002e71565
31 changed files with 31 additions and 591 deletions
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28
hotspot/src/share/vm/c1/c1_GraphBuilder.cpp
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@ -1,5 +1,5 @@
/*
* Copyright (c) 1999, 2014, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1999, 2015, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -3497,11 +3497,6 @@ bool GraphBuilder::try_inline_intrinsics(ciMethod* callee) {
case vmIntrinsics::_putFloat_raw : return append_unsafe_put_raw(callee, T_FLOAT);
case vmIntrinsics::_putDouble_raw : return append_unsafe_put_raw(callee, T_DOUBLE);
case vmIntrinsics::_prefetchRead : return append_unsafe_prefetch(callee, false, false);
case vmIntrinsics::_prefetchWrite : return append_unsafe_prefetch(callee, false, true);
case vmIntrinsics::_prefetchReadStatic : return append_unsafe_prefetch(callee, true, false);
case vmIntrinsics::_prefetchWriteStatic : return append_unsafe_prefetch(callee, true, true);
case vmIntrinsics::_checkIndex :
if (!InlineNIOCheckIndex) return false;
preserves_state = true;
@ -4258,27 +4253,6 @@ bool GraphBuilder::append_unsafe_put_raw(ciMethod* callee, BasicType t) {
}
bool GraphBuilder::append_unsafe_prefetch(ciMethod* callee, bool is_static, bool is_store) {
if (InlineUnsafeOps) {
Values* args = state()->pop_arguments(callee->arg_size());
int obj_arg_index = 1; // Assume non-static case
if (is_static) {
obj_arg_index = 0;
} else {
null_check(args->at(0));
}
Instruction* offset = args->at(obj_arg_index + 1);
#ifndef _LP64
offset = append(new Convert(Bytecodes::_l2i, offset, as_ValueType(T_INT)));
#endif
Instruction* op = is_store ? append(new UnsafePrefetchWrite(args->at(obj_arg_index), offset))
: append(new UnsafePrefetchRead (args->at(obj_arg_index), offset));
compilation()->set_has_unsafe_access(true);
}
return InlineUnsafeOps;
}
void GraphBuilder::append_unsafe_CAS(ciMethod* callee) {
ValueStack* state_before = copy_state_for_exception();
ValueType* result_type = as_ValueType(callee->return_type());