Mercurial > jdk8-mips64-public > hotspot / file diff

     1.1 --- a/src/share/vm/c1/c1_LIRGenerator.cpp	Tue Mar 29 23:01:10 2016 +0100
     1.2 +++ b/src/share/vm/c1/c1_LIRGenerator.cpp	Tue Apr 05 08:55:39 2016 -0700
     1.3 @@ -1,5 +1,5 @@
     1.4  /*
     1.5 - * Copyright (c) 2005, 2015, Oracle and/or its affiliates. All rights reserved.
     1.6 + * Copyright (c) 2005, 2016, Oracle and/or its affiliates. All rights reserved.
     1.7   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     1.8   *
     1.9   * This code is free software; you can redistribute it and/or modify it
    1.10 @@ -3646,3 +3646,26 @@
    1.11      }
    1.12    }
    1.13  }
    1.14 +
    1.15 +LIR_Opr LIRGenerator::maybe_mask_boolean(StoreIndexed* x, LIR_Opr array, LIR_Opr value, CodeEmitInfo*& null_check_info) {
    1.16 +  if (x->check_boolean()) {
    1.17 +    LIR_Opr value_fixed = rlock_byte(T_BYTE);
    1.18 +    if (TwoOperandLIRForm) {
    1.19 +      __ move(value, value_fixed);
    1.20 +      __ logical_and(value_fixed, LIR_OprFact::intConst(1), value_fixed);
    1.21 +    } else {
    1.22 +      __ logical_and(value, LIR_OprFact::intConst(1), value_fixed);
    1.23 +    }
    1.24 +    LIR_Opr klass = new_register(T_METADATA);
    1.25 +    __ move(new LIR_Address(array, oopDesc::klass_offset_in_bytes(), T_ADDRESS), klass, null_check_info);
    1.26 +    null_check_info = NULL;
    1.27 +    LIR_Opr layout = new_register(T_INT);
    1.28 +    __ move(new LIR_Address(klass, in_bytes(Klass::layout_helper_offset()), T_INT), layout);
    1.29 +    int diffbit = Klass::layout_helper_boolean_diffbit();
    1.30 +    __ logical_and(layout, LIR_OprFact::intConst(diffbit), layout);
    1.31 +    __ cmp(lir_cond_notEqual, layout, LIR_OprFact::intConst(0));
    1.32 +    __ cmove(lir_cond_notEqual, value_fixed, value, value_fixed, T_BYTE);
    1.33 +    value = value_fixed;
    1.34 +  }
    1.35 +  return value;
    1.36 +}