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src/share/vm/c1/c1_Instruction.cpp
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@@ -1,7 +1,7 @@
/*
- * Copyright (c) 1999, 2016, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1999, 2017, 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
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
@@ -237,23 +237,23 @@
case Bytecodes::_dadd: // fall through
case Bytecodes::_imul: // fall through
case Bytecodes::_lmul: // fall through
case Bytecodes::_fmul: // fall through
case Bytecodes::_dmul: return true;
+ default : return false;
}
- return false;
}
bool ArithmeticOp::can_trap() const {
switch (op()) {
case Bytecodes::_idiv: // fall through
case Bytecodes::_ldiv: // fall through
case Bytecodes::_irem: // fall through
case Bytecodes::_lrem: return true;
+ default : return false;
}
- return false;
}
// Implementation of LogicOp
@@ -264,11 +264,11 @@
case Bytecodes::_land: // fall through
case Bytecodes::_ior : // fall through
case Bytecodes::_lor : // fall through
case Bytecodes::_ixor: // fall through
case Bytecodes::_lxor: break;
- default : ShouldNotReachHere();
+ default : ShouldNotReachHere(); break;
}
#endif
// all LogicOps are commutative
return true;
}
@@ -445,12 +445,13 @@
MetadataType* t2 = v->type()->as_MetadataType();
return (t1 != NULL && t2 != NULL &&
t1->is_loaded() && t2->is_loaded() &&
t1->constant_value() == t2->constant_value());
}
- }
+ default:
return false;
+ }
}
Constant::CompareResult Constant::compare(Instruction::Condition cond, Value right) const {
Constant* rc = right->as_Constant();
// other is not a constant
@@ -469,10 +470,11 @@
case If::neq: return x != y ? cond_true : cond_false;
case If::lss: return x < y ? cond_true : cond_false;
case If::leq: return x <= y ? cond_true : cond_false;
case If::gtr: return x > y ? cond_true : cond_false;
case If::geq: return x >= y ? cond_true : cond_false;
+ default : break;
}
break;
}
case longTag: {
jlong x = lt->as_LongConstant()->value();
@@ -482,10 +484,11 @@
case If::neq: return x != y ? cond_true : cond_false;
case If::lss: return x < y ? cond_true : cond_false;
case If::leq: return x <= y ? cond_true : cond_false;
case If::gtr: return x > y ? cond_true : cond_false;
case If::geq: return x >= y ? cond_true : cond_false;
+ default : break;
}
break;
}
case objectTag: {
ciObject* xvalue = lt->as_ObjectType()->constant_value();
@@ -493,10 +496,11 @@
assert(xvalue != NULL && yvalue != NULL, "not constants");
if (xvalue->is_loaded() && yvalue->is_loaded()) {
switch (cond) {
case If::eql: return xvalue == yvalue ? cond_true : cond_false;
case If::neq: return xvalue != yvalue ? cond_true : cond_false;
+ default : break;
}
}
break;
}
case metaDataTag: {
@@ -505,14 +509,17 @@
assert(xvalue != NULL && yvalue != NULL, "not constants");
if (xvalue->is_loaded() && yvalue->is_loaded()) {
switch (cond) {
case If::eql: return xvalue == yvalue ? cond_true : cond_false;
case If::neq: return xvalue != yvalue ? cond_true : cond_false;
+ default : break;
}
}
break;
}
+ default:
+ break;
}
return not_comparable;
}
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