--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/cpu/ppc/abstractInterpreter_ppc.cpp Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,149 @@
+/*
+ * Copyright (c) 2014, 2017, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2015 SAP SE. 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
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "interpreter/interpreter.hpp"
+#include "oops/constMethod.hpp"
+#include "oops/method.hpp"
+#include "runtime/frame.inline.hpp"
+#include "utilities/debug.hpp"
+#include "utilities/macros.hpp"
+
+int AbstractInterpreter::BasicType_as_index(BasicType type) {
+ int i = 0;
+ switch (type) {
+ case T_BOOLEAN: i = 0; break;
+ case T_CHAR : i = 1; break;
+ case T_BYTE : i = 2; break;
+ case T_SHORT : i = 3; break;
+ case T_INT : i = 4; break;
+ case T_LONG : i = 5; break;
+ case T_VOID : i = 6; break;
+ case T_FLOAT : i = 7; break;
+ case T_DOUBLE : i = 8; break;
+ case T_OBJECT : i = 9; break;
+ case T_ARRAY : i = 9; break;
+ default : ShouldNotReachHere();
+ }
+ assert(0 <= i && i < AbstractInterpreter::number_of_result_handlers, "index out of bounds");
+ return i;
+}
+
+// How much stack a method activation needs in stack slots.
+// We must calc this exactly like in generate_fixed_frame.
+// Note: This returns the conservative size assuming maximum alignment.
+int AbstractInterpreter::size_top_interpreter_activation(Method* method) {
+ const int max_alignment_size = 2;
+ const int abi_scratch = frame::abi_reg_args_size;
+ return method->max_locals() + method->max_stack() +
+ frame::interpreter_frame_monitor_size() + max_alignment_size + abi_scratch;
+}
+
+// Returns number of stackElementWords needed for the interpreter frame with the
+// given sections.
+// This overestimates the stack by one slot in case of alignments.
+int AbstractInterpreter::size_activation(int max_stack,
+ int temps,
+ int extra_args,
+ int monitors,
+ int callee_params,
+ int callee_locals,
+ bool is_top_frame) {
+ // Note: This calculation must exactly parallel the frame setup
+ // in TemplateInterpreterGenerator::generate_fixed_frame.
+ assert(Interpreter::stackElementWords == 1, "sanity");
+ const int max_alignment_space = StackAlignmentInBytes / Interpreter::stackElementSize;
+ const int abi_scratch = is_top_frame ? (frame::abi_reg_args_size / Interpreter::stackElementSize) :
+ (frame::abi_minframe_size / Interpreter::stackElementSize);
+ const int size =
+ max_stack +
+ (callee_locals - callee_params) +
+ monitors * frame::interpreter_frame_monitor_size() +
+ max_alignment_space +
+ abi_scratch +
+ frame::ijava_state_size / Interpreter::stackElementSize;
+
+ // Fixed size of an interpreter frame, align to 16-byte.
+ return (size & -2);
+}
+
+// Fills a sceletal interpreter frame generated during deoptimizations.
+//
+// Parameters:
+//
+// interpreter_frame != NULL:
+// set up the method, locals, and monitors.
+// The frame interpreter_frame, if not NULL, is guaranteed to be the
+// right size, as determined by a previous call to this method.
+// It is also guaranteed to be walkable even though it is in a skeletal state
+//
+// is_top_frame == true:
+// We're processing the *oldest* interpreter frame!
+//
+// pop_frame_extra_args:
+// If this is != 0 we are returning to a deoptimized frame by popping
+// off the callee frame. We want to re-execute the call that called the
+// callee interpreted, but since the return to the interpreter would pop
+// the arguments off advance the esp by dummy popframe_extra_args slots.
+// Popping off those will establish the stack layout as it was before the call.
+//
+void AbstractInterpreter::layout_activation(Method* method,
+ int tempcount,
+ int popframe_extra_args,
+ int moncount,
+ int caller_actual_parameters,
+ int callee_param_count,
+ int callee_locals_count,
+ frame* caller,
+ frame* interpreter_frame,
+ bool is_top_frame,
+ bool is_bottom_frame) {
+
+ const int abi_scratch = is_top_frame ? (frame::abi_reg_args_size / Interpreter::stackElementSize) :
+ (frame::abi_minframe_size / Interpreter::stackElementSize);
+
+ intptr_t* locals_base = (caller->is_interpreted_frame()) ?
+ caller->interpreter_frame_esp() + caller_actual_parameters :
+ caller->sp() + method->max_locals() - 1 + (frame::abi_minframe_size / Interpreter::stackElementSize);
+
+ intptr_t* monitor_base = caller->sp() - frame::ijava_state_size / Interpreter::stackElementSize;
+ intptr_t* monitor = monitor_base - (moncount * frame::interpreter_frame_monitor_size());
+ intptr_t* esp_base = monitor - 1;
+ intptr_t* esp = esp_base - tempcount - popframe_extra_args;
+ intptr_t* sp = (intptr_t *) (((intptr_t) (esp_base - callee_locals_count + callee_param_count - method->max_stack()- abi_scratch)) & -StackAlignmentInBytes);
+ intptr_t* sender_sp = caller->sp() + (frame::abi_minframe_size - frame::abi_reg_args_size) / Interpreter::stackElementSize;
+ intptr_t* top_frame_sp = is_top_frame ? sp : sp + (frame::abi_minframe_size - frame::abi_reg_args_size) / Interpreter::stackElementSize;
+
+ interpreter_frame->interpreter_frame_set_method(method);
+ interpreter_frame->interpreter_frame_set_mirror(method->method_holder()->java_mirror());
+ interpreter_frame->interpreter_frame_set_locals(locals_base);
+ interpreter_frame->interpreter_frame_set_cpcache(method->constants()->cache());
+ interpreter_frame->interpreter_frame_set_esp(esp);
+ interpreter_frame->interpreter_frame_set_monitor_end((BasicObjectLock *)monitor);
+ interpreter_frame->interpreter_frame_set_top_frame_sp(top_frame_sp);
+ if (!is_bottom_frame) {
+ interpreter_frame->interpreter_frame_set_sender_sp(sender_sp);
+ }
+}