changeset in /hg/icedtea: 2009-03-09 Gary Benson <gbenson at redh...
Gary Benson
gbenson at redhat.com
Fri Mar 20 01:52:15 PDT 2009
changeset 146e5d33e990 in /hg/icedtea
details: http://icedtea.classpath.org/hg/icedtea?cmd=changeset;node=146e5d33e990
description:
2009-03-09 Gary Benson <gbenson at redhat.com>
* ports/hotspot/src/share/vm/shark/sharkTopLevelBlock.hpp
(SharkTopLevelBlock::_trap_request): New field.
(SharkTopLevelBlock::trap_request): New method.
(SharkTopLevelBlock::scan_for_traps): Likewise.
(SharkTopLevelBlock::has_trap): Rewritten.
(SharkTopLevelBlock::trap_index): Removed method.
* ports/hotspot/src/share/vm/shark/sharkTopLevelBlock.cpp
(SharkTopLevelBlock::scan_for_traps): New method.
(SharkTopLevelBlock::emit_IR): s/trap_index/trap_request/.
(SharkTopLevelBlock::get_virtual_callee): Removed slow case.
* ports/hotspot/src/share/vm/shark/sharkConstantPool.cpp
(SharkConstantPool::cache_entry_at): Removed slow case.
* ports/hotspot/src/share/vm/shark/sharkRuntime.hpp
(SharkRuntime::_resolve_get_put): Removed.
(SharkRuntime::_resolve_invoke): Likewise.
(SharkRuntime::resolve_get_put): Likewise.
(SharkRuntime::resolve_invoke): Likewise.
(SharkRuntime::resolve_get_put_C): Likewise.
(SharkRuntime::resolve_invoke_C): Likewise.
(SharkRuntime::uncommon_trap_C): s/index/trap_request/.
* ports/hotspot/src/share/vm/shark/sharkRuntime.cpp
(SharkRuntime::_resolve_get_put): Removed.
(SharkRuntime::_resolve_invoke): Likewise.
(SharkRuntime::initialize): Removed initialization for the above.
(SharkRuntime::resolve_get_put_C): Removed.
(SharkRuntime::resolve_invoke_C): Likewise.
(SharkRuntime::uncommon_trap_C): s/index/trap_request/.
* ports/hotspot/src/share/vm/shark/sharkBlock.cpp
(SharkBlock::do_field_access): Mismatch case now handled by trap.
* ports/hotspot/src/share/vm/includeDB_shark: Updated.
(transplanted from a28649aea20fad5a814c3cd8d56b8ed704c7203b)
diffstat:
8 files changed, 168 insertions(+), 272 deletions(-)
ChangeLog | 37 +++
ports/hotspot/src/share/vm/includeDB_shark | 2
ports/hotspot/src/share/vm/shark/sharkBlock.cpp | 5
ports/hotspot/src/share/vm/shark/sharkConstantPool.cpp | 72 -------
ports/hotspot/src/share/vm/shark/sharkRuntime.cpp | 152 ---------------
ports/hotspot/src/share/vm/shark/sharkRuntime.hpp | 20 -
ports/hotspot/src/share/vm/shark/sharkTopLevelBlock.cpp | 120 +++++++++--
ports/hotspot/src/share/vm/shark/sharkTopLevelBlock.hpp | 32 ++-
diffs (truncated from 624 to 500 lines):
diff -r f7efa3c95c17 -r 146e5d33e990 ChangeLog
--- a/ChangeLog Fri Mar 06 09:47:04 2009 -0500
+++ b/ChangeLog Mon Mar 09 10:26:08 2009 -0400
@@ -1,3 +1,40 @@ 2009-03-06 Gary Benson <gbenson at redhat
+2009-03-09 Gary Benson <gbenson at redhat.com>
+
+ * ports/hotspot/src/share/vm/shark/sharkTopLevelBlock.hpp
+ (SharkTopLevelBlock::_trap_request): New field.
+ (SharkTopLevelBlock::trap_request): New method.
+ (SharkTopLevelBlock::scan_for_traps): Likewise.
+ (SharkTopLevelBlock::has_trap): Rewritten.
+ (SharkTopLevelBlock::trap_index): Removed method.
+ * ports/hotspot/src/share/vm/shark/sharkTopLevelBlock.cpp
+ (SharkTopLevelBlock::scan_for_traps): New method.
+ (SharkTopLevelBlock::emit_IR): s/trap_index/trap_request/.
+ (SharkTopLevelBlock::get_virtual_callee): Removed slow case.
+
+ * ports/hotspot/src/share/vm/shark/sharkConstantPool.cpp
+ (SharkConstantPool::cache_entry_at): Removed slow case.
+
+ * ports/hotspot/src/share/vm/shark/sharkRuntime.hpp
+ (SharkRuntime::_resolve_get_put): Removed.
+ (SharkRuntime::_resolve_invoke): Likewise.
+ (SharkRuntime::resolve_get_put): Likewise.
+ (SharkRuntime::resolve_invoke): Likewise.
+ (SharkRuntime::resolve_get_put_C): Likewise.
+ (SharkRuntime::resolve_invoke_C): Likewise.
+ (SharkRuntime::uncommon_trap_C): s/index/trap_request/.
+ * ports/hotspot/src/share/vm/shark/sharkRuntime.cpp
+ (SharkRuntime::_resolve_get_put): Removed.
+ (SharkRuntime::_resolve_invoke): Likewise.
+ (SharkRuntime::initialize): Removed initialization for the above.
+ (SharkRuntime::resolve_get_put_C): Removed.
+ (SharkRuntime::resolve_invoke_C): Likewise.
+ (SharkRuntime::uncommon_trap_C): s/index/trap_request/.
+
+ * ports/hotspot/src/share/vm/shark/sharkBlock.cpp
+ (SharkBlock::do_field_access): Mismatch case now handled by trap.
+
+ * ports/hotspot/src/share/vm/includeDB_shark: Updated.
+
2009-03-06 Gary Benson <gbenson at redhat.com>
* ports/hotspot/src/share/vm/shark/sharkBuilder.hpp
diff -r f7efa3c95c17 -r 146e5d33e990 ports/hotspot/src/share/vm/includeDB_shark
--- a/ports/hotspot/src/share/vm/includeDB_shark Fri Mar 06 09:47:04 2009 -0500
+++ b/ports/hotspot/src/share/vm/includeDB_shark Mon Mar 09 10:26:08 2009 -0400
@@ -171,7 +171,6 @@ sharkConstantPool.cpp
sharkConstantPool.cpp methodOop.hpp
sharkConstantPool.cpp sharkBuilder.hpp
sharkConstantPool.cpp sharkConstantPool.hpp
-sharkConstantPool.cpp sharkRuntime.hpp
sharkConstantPool.cpp sharkState.inline.hpp
sharkConstantPool.cpp sharkType.hpp
sharkConstantPool.cpp sharkValue.inline.hpp
@@ -285,6 +284,7 @@ sharkTopLevelBlock.cpp
sharkTopLevelBlock.cpp ciType.hpp
sharkTopLevelBlock.cpp ciTypeFlow.hpp
sharkTopLevelBlock.cpp debug.hpp
+sharkTopLevelBlock.cpp deoptimization.hpp
sharkTopLevelBlock.cpp llvmHeaders.hpp
sharkTopLevelBlock.cpp shark_globals.hpp
sharkTopLevelBlock.cpp sharkTopLevelBlock.hpp
diff -r f7efa3c95c17 -r 146e5d33e990 ports/hotspot/src/share/vm/shark/sharkBlock.cpp
--- a/ports/hotspot/src/share/vm/shark/sharkBlock.cpp Fri Mar 06 09:47:04 2009 -0500
+++ b/ports/hotspot/src/share/vm/shark/sharkBlock.cpp Mon Mar 09 10:26:08 2009 -0400
@@ -968,10 +968,7 @@ void SharkBlock::do_field_access(bool is
bool will_link;
ciField *field = iter()->get_field(will_link);
assert(will_link, "typeflow responsibility");
-
- // Check the bytecode matches the field
- if (is_field == field->is_static())
- Unimplemented();
+ assert(is_field != field->is_static(), "mismatch");
// Pop the value off the stack where necessary
SharkValue *value = NULL;
diff -r f7efa3c95c17 -r 146e5d33e990 ports/hotspot/src/share/vm/shark/sharkConstantPool.cpp
--- a/ports/hotspot/src/share/vm/shark/sharkConstantPool.cpp Fri Mar 06 09:47:04 2009 -0500
+++ b/ports/hotspot/src/share/vm/shark/sharkConstantPool.cpp Mon Mar 09 10:26:08 2009 -0400
@@ -87,8 +87,10 @@ Value *SharkConstantPool::cache_entry_at
// bizarre hack but it's the same as
// constantPoolOopDesc::field_or_method_at().
which = Bytes::swap_u2(which);
+ assert(target()->holder()->is_cache_entry_resolved(which, block()->bc()),
+ "should be");
- Value *entry = builder()->CreateIntToPtr(
+ return builder()->CreateIntToPtr(
builder()->CreateAdd(
builder()->CreatePtrToInt(
cache(), SharkType::intptr_type()),
@@ -96,74 +98,6 @@ Value *SharkConstantPool::cache_entry_at
in_bytes(constantPoolCacheOopDesc::base_offset()) +
which * sizeof(ConstantPoolCacheEntry))),
SharkType::cpCacheEntry_type());
-
- // Resolve the entry if necessary
- if (target()->holder()->is_cache_entry_resolved(which, block()->bc()))
- return entry;
-
- int shift;
- switch (ConstantPoolCacheEntry::bytecode_number(block()->bc())) {
- case 1:
- shift = 16;
- break;
- case 2:
- shift = 24;
- break;
- default:
- ShouldNotReachHere();
- }
-
- Value *opcode = builder()->CreateAnd(
- builder()->CreateLShr(
- builder()->CreateValueOfStructEntry(
- entry, ConstantPoolCacheEntry::indices_offset(),
- SharkType::intptr_type()),
- LLVMValue::intptr_constant(shift)),
- LLVMValue::intptr_constant(0xff));
-
- BasicBlock *orig_block = builder()->GetInsertBlock();
- SharkState *orig_state = block()->current_state()->copy();
-
- BasicBlock *resolve = block()->function()->CreateBlock("resolve");
- BasicBlock *resolved = block()->function()->CreateBlock("resolved");
-
- builder()->CreateCondBr(
- builder()->CreateICmpNE(opcode, LLVMValue::intptr_constant(block()->bc())),
- resolve, resolved);
-
- builder()->SetInsertPoint(resolve);
- Constant *resolver;
- switch (block()->bc()) {
- case Bytecodes::_invokestatic:
- case Bytecodes::_invokespecial:
- case Bytecodes::_invokevirtual:
- case Bytecodes::_invokeinterface:
- resolver = SharkRuntime::resolve_invoke();
- break;
-
- case Bytecodes::_getfield:
- case Bytecodes::_getstatic:
- case Bytecodes::_putfield:
- case Bytecodes::_putstatic:
- resolver = SharkRuntime::resolve_get_put();
- break;
-
- default:
- ShouldNotReachHere();
- }
-
- block()->call_vm(
- resolver,
- entry,
- LLVMValue::jint_constant(block()->bci()),
- LLVMValue::jint_constant(block()->bc()));
- BasicBlock *resolve_block = builder()->GetInsertBlock();
- builder()->CreateBr(resolved);
-
- builder()->SetInsertPoint(resolved);
- block()->current_state()->merge(orig_state, orig_block, resolve_block);
-
- return entry;
}
Value *SharkConstantPool::java_mirror()
diff -r f7efa3c95c17 -r 146e5d33e990 ports/hotspot/src/share/vm/shark/sharkRuntime.cpp
--- a/ports/hotspot/src/share/vm/shark/sharkRuntime.cpp Fri Mar 06 09:47:04 2009 -0500
+++ b/ports/hotspot/src/share/vm/shark/sharkRuntime.cpp Mon Mar 09 10:26:08 2009 -0400
@@ -36,8 +36,6 @@ Constant* SharkRuntime::_anewarray;
Constant* SharkRuntime::_anewarray;
Constant* SharkRuntime::_multianewarray;
Constant* SharkRuntime::_register_finalizer;
-Constant* SharkRuntime::_resolve_get_put;
-Constant* SharkRuntime::_resolve_invoke;
Constant* SharkRuntime::_resolve_klass;
Constant* SharkRuntime::_safepoint;
Constant* SharkRuntime::_throw_ArrayIndexOutOfBoundsException;
@@ -120,20 +118,6 @@ void SharkRuntime::initialize(SharkBuild
(intptr_t) register_finalizer_C,
FunctionType::get(Type::VoidTy, params, false),
"SharkRuntime__register_finalizer");
-
- params.clear();
- params.push_back(SharkType::thread_type());
- params.push_back(SharkType::cpCacheEntry_type());
- params.push_back(SharkType::jint_type());
- params.push_back(SharkType::jint_type());
- _resolve_get_put = builder->make_function(
- (intptr_t) resolve_get_put_C,
- FunctionType::get(Type::VoidTy, params, false),
- "SharkRuntime__resolve_get_put");
- _resolve_invoke = builder->make_function(
- (intptr_t) resolve_invoke_C,
- FunctionType::get(Type::VoidTy, params, false),
- "SharkRuntime__resolve_invoke");
params.clear();
params.push_back(SharkType::thread_type());
@@ -349,138 +333,6 @@ JRT_ENTRY(void, SharkRuntime::register_f
}
JRT_END
-JRT_ENTRY(void, SharkRuntime::resolve_get_put_C(JavaThread* thread,
- ConstantPoolCacheEntry* entry,
- int bci,
- Bytecodes::Code bytecode))
-{
- // Resolve the field
- FieldAccessInfo info;
- {
- constantPoolHandle pool(thread, method(thread)->constants());
- JvmtiHideSingleStepping jhss(thread);
- LinkResolver::resolve_field(
- info, pool, two_byte_index(thread, bci), bytecode, false, CHECK);
- }
-
- // Check if link resolution caused the cache to be updated
- if (entry->is_resolved(bytecode))
- return;
-
- // Compute auxiliary field attributes
- TosState state = as_TosState(info.field_type());
-
- // We need to delay resolving put instructions on final fields
- // until we actually invoke one. This is required so we throw
- // exceptions at the correct place. If we do not resolve completely
- // in the current pass, leaving the put_code set to zero will
- // cause the next put instruction to reresolve.
- bool is_put =
- (bytecode == Bytecodes::_putfield || bytecode == Bytecodes::_putstatic);
- Bytecodes::Code put_code = (Bytecodes::Code) 0;
-
- // We also need to delay resolving getstatic instructions until the
- // class is intitialized. This is required so that access to the
- // static field will call the initialization function every time
- // until the class is completely initialized as per 2.17.5 in JVM
- // Specification.
- instanceKlass *klass = instanceKlass::cast(info.klass()->as_klassOop());
- bool is_static =
- (bytecode == Bytecodes::_getstatic || bytecode == Bytecodes::_putstatic);
- bool uninitialized_static = (is_static && !klass->is_initialized());
- Bytecodes::Code get_code = (Bytecodes::Code) 0;
-
- if (!uninitialized_static) {
- get_code = ((is_static) ? Bytecodes::_getstatic : Bytecodes::_getfield);
- if (is_put || !info.access_flags().is_final()) {
- put_code = ((is_static) ? Bytecodes::_putstatic : Bytecodes::_putfield);
- }
- }
-
- // Update the cache entry
- entry->set_field(
- get_code,
- put_code,
- info.klass(),
- info.field_index(),
- info.field_offset(),
- state,
- info.access_flags().is_final(),
- info.access_flags().is_volatile());
-}
-JRT_END
-
-JRT_ENTRY(void, SharkRuntime::resolve_invoke_C(JavaThread* thread,
- ConstantPoolCacheEntry* entry,
- int bci,
- Bytecodes::Code bytecode))
-{
- // Find the receiver
- Handle receiver(thread, NULL);
- if (bytecode == Bytecodes::_invokevirtual ||
- bytecode == Bytecodes::_invokeinterface) {
- ResourceMark rm(thread);
- methodHandle mh(thread, method(thread));
- Bytecode_invoke *call = Bytecode_invoke_at(mh, bci);
- symbolHandle signature(thread, call->signature());
- ArgumentSizeComputer asc(signature);
- receiver = Handle(thread, (oop) tos_at(thread, asc.size()));
- assert(
- receiver.is_null() ||
- (Universe::heap()->is_in_reserved(receiver()) &&
- Universe::heap()->is_in_reserved(receiver->klass())), "sanity check");
- }
-
- // Resolve the method
- CallInfo info;
- {
- constantPoolHandle pool(thread, method(thread)->constants());
- JvmtiHideSingleStepping jhss(thread);
- LinkResolver::resolve_invoke(
- info, receiver, pool, two_byte_index(thread, bci), bytecode, CHECK);
- if (JvmtiExport::can_hotswap_or_post_breakpoint()) {
- int retry_count = 0;
- while (info.resolved_method()->is_old()) {
- // It is very unlikely that method is redefined more than 100
- // times in the middle of resolve. If it is looping here more
- // than 100 times means then there could be a bug here.
- guarantee((retry_count++ < 100),
- "Could not resolve to latest version of redefined method");
- // method is redefined in the middle of resolve so re-try.
- LinkResolver::resolve_invoke(
- info, receiver, pool, two_byte_index(thread, bci), bytecode, CHECK);
- }
- }
- }
-
- // Check if link resolution caused the cache to be updated
- if (entry->is_resolved(bytecode))
- return;
-
- // Update the cache entry
- methodHandle rm = info.resolved_method();
- if (bytecode == Bytecodes::_invokeinterface) {
- if (rm->method_holder() == SystemDictionary::object_klass()) {
- // Workaround for the case where we encounter an invokeinterface,
- // but should really have an invokevirtual since the resolved
- // method is a virtual method in java.lang.Object. This is a
- // corner case in the spec but is presumably legal, and while
- // javac does not generate this code there's no reason it could
- // not be produced by a compliant java compiler. See
- // cpCacheOop.cpp for more details.
- assert(rm->is_final() || info.has_vtable_index(), "should be set");
- entry->set_method(bytecode, rm, info.vtable_index());
- }
- else {
- entry->set_interface_call(rm, klassItable::compute_itable_index(rm()));
- }
- }
- else {
- entry->set_method(bytecode, rm, info.vtable_index());
- }
-}
-JRT_END
-
JRT_ENTRY(void, SharkRuntime::resolve_klass_C(JavaThread* thread, int index))
{
klassOop klass = method(thread)->constants()->klass_at(index, CHECK);
@@ -535,7 +387,7 @@ bool SharkRuntime::is_subtype_of_C(klass
return object_klass->klass_part()->is_subtype_of(check_klass);
}
-void SharkRuntime::uncommon_trap_C(JavaThread* thread, int index)
+void SharkRuntime::uncommon_trap_C(JavaThread* thread, int trap_request)
{
// In C2, uncommon_trap_blob creates a frame, so all the various
// deoptimization functions expect to find the frame of the method
@@ -547,7 +399,7 @@ void SharkRuntime::uncommon_trap_C(JavaT
// Initiate the trap
thread->set_last_Java_frame();
Deoptimization::UnrollBlock *urb =
- Deoptimization::uncommon_trap(thread, index);
+ Deoptimization::uncommon_trap(thread, trap_request);
thread->reset_last_Java_frame();
// Pop our dummy frame and the frame being deoptimized
diff -r f7efa3c95c17 -r 146e5d33e990 ports/hotspot/src/share/vm/shark/sharkRuntime.hpp
--- a/ports/hotspot/src/share/vm/shark/sharkRuntime.hpp Fri Mar 06 09:47:04 2009 -0500
+++ b/ports/hotspot/src/share/vm/shark/sharkRuntime.hpp Mon Mar 09 10:26:08 2009 -0400
@@ -37,8 +37,6 @@ class SharkRuntime : public AllStatic {
static llvm::Constant* _anewarray;
static llvm::Constant* _multianewarray;
static llvm::Constant* _register_finalizer;
- static llvm::Constant* _resolve_get_put;
- static llvm::Constant* _resolve_invoke;
static llvm::Constant* _resolve_klass;
static llvm::Constant* _safepoint;
static llvm::Constant* _throw_ArrayIndexOutOfBoundsException;
@@ -76,14 +74,6 @@ class SharkRuntime : public AllStatic {
static llvm::Constant* register_finalizer()
{
return _register_finalizer;
- }
- static llvm::Constant* resolve_get_put()
- {
- return _resolve_get_put;
- }
- static llvm::Constant* resolve_invoke()
- {
- return _resolve_invoke;
}
static llvm::Constant* resolve_klass()
{
@@ -120,14 +110,6 @@ class SharkRuntime : public AllStatic {
static void register_finalizer_C(JavaThread* thread, oop object);
- static void resolve_get_put_C(JavaThread* thread,
- ConstantPoolCacheEntry* entry,
- int bci,
- Bytecodes::Code bytecode);
- static void resolve_invoke_C(JavaThread* thread,
- ConstantPoolCacheEntry* entry,
- int bci,
- Bytecodes::Code bytecode);
static void resolve_klass_C(JavaThread* thread, int index);
static void throw_ArrayIndexOutOfBoundsException_C(JavaThread* thread,
const char* file,
@@ -218,5 +200,5 @@ class SharkRuntime : public AllStatic {
private:
static void dump_C(const char *name, intptr_t value);
static bool is_subtype_of_C(klassOop check_klass, klassOop object_klass);
- static void uncommon_trap_C(JavaThread* thread, int index);
+ static void uncommon_trap_C(JavaThread* thread, int trap_request);
};
diff -r f7efa3c95c17 -r 146e5d33e990 ports/hotspot/src/share/vm/shark/sharkTopLevelBlock.cpp
--- a/ports/hotspot/src/share/vm/shark/sharkTopLevelBlock.cpp Fri Mar 06 09:47:04 2009 -0500
+++ b/ports/hotspot/src/share/vm/shark/sharkTopLevelBlock.cpp Mon Mar 09 10:26:08 2009 -0400
@@ -143,6 +143,99 @@ class SharkPHIState : public SharkState
}
};
+int SharkTopLevelBlock::scan_for_traps()
+{
+ // If typeflow got one then we're already done
+ if (ciblock()->has_trap()) {
+ return Deoptimization::make_trap_request(
+ Deoptimization::Reason_unloaded,
+ Deoptimization::Action_reinterpret,
+ ciblock()->trap_index());
+ }
+
+ // Scan the bytecode
+ iter()->reset_to_bci(start());
+ while (iter()->next_bci() < limit()) {
+ iter()->next();
+
+ ciField *field;
+ ciMethod *method;
+ bool will_link;
+ bool is_field;
+
+ int index = -1;
+
+ switch (bc()) {
+ case Bytecodes::_getfield:
+ case Bytecodes::_getstatic:
+ case Bytecodes::_putfield:
+ case Bytecodes::_putstatic:
+ field = iter()->get_field(will_link);
+ assert(will_link, "typeflow responsibility");
+ is_field = (bc() == Bytecodes::_getfield || bc() == Bytecodes::_putfield);
+
+ // If the bytecode does not match the field then bail out to
+ // the interpreter to throw an IncompatibleClassChangeError
+ if (is_field == field->is_static()) {
+ return Deoptimization::make_trap_request(
+ Deoptimization::Reason_unhandled,
+ Deoptimization::Action_none);
+ }
+
+ // If this is a getfield or putfield then there won't be a
+ // pool access and we're done
+ if (is_field)
+ break;
+
+ // There won't be a pool access if this is a getstatic that
+ // resolves to a handled constant either
+ if (bc() == Bytecodes::_getstatic && field->is_constant()) {
+ if (SharkValue::from_ciConstant(field->constant_value()))
+ break;
+ }
+
+ // Continue to the check
+ index = iter()->get_field_index();
+ break;
+
+ case Bytecodes::_invokespecial:
+ case Bytecodes::_invokestatic:
+ case Bytecodes::_invokevirtual:
+ case Bytecodes::_invokeinterface:
+ method = iter()->get_method(will_link);
+ assert(will_link, "typeflow responsibility");
+
+ // If this is a non-final invokevirtual then there won't
+ // be a pool access. We do need to check that its holder
+ // is linked, however, because its vtable won't have been
+ // set up otherwise.
+ if (bc() == Bytecodes::_invokevirtual && !method->is_final_method()) {
+ if (!method->holder()->is_linked()) {
+ return Deoptimization::make_trap_request(
+ Deoptimization::Reason_uninitialized,
+ Deoptimization::Action_reinterpret);
+ }
+ break;
+ }
+
+ // Continue to the check
+ index = iter()->get_method_index();
+ break;
+ }
+
+ // If we found a constant pool access on this bytecode then check it
+ if (index != -1) {
+ if (!target()->holder()->is_cache_entry_resolved(
+ Bytes::swap_u2(index), bc())) {
+ return Deoptimization::make_trap_request(
+ Deoptimization::Reason_uninitialized,
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