src/share/vm/compiler/abstractCompiler.hpp
Index Unified diffs Context diffs Sdiffs Patch New Old Previous File Next File 8132457 Cdiff src/share/vm/compiler/abstractCompiler.hpp

src/share/vm/compiler/abstractCompiler.hpp

Print this page

        

*** 73,84 **** // (i.e., the platform provides the instructions necessary for the compiler // to generate the intrinsic code). // // The second parameter, 'compilation_context', is needed to implement functionality // related to the DisableIntrinsic command-line flag. The DisableIntrinsic flag can ! // be used to prohibit the C2 compiler (but not the C1 compiler) to use an intrinsic. ! // There are three ways to disable an intrinsic using the DisableIntrinsic flag: // // (1) -XX:DisableIntrinsic=_hashCode,_getClass // Disables intrinsification of _hashCode and _getClass globally // (i.e., the intrinsified version the methods will not be used at all). // (2) -XX:CompileCommand=option,aClass::aMethod,ccstr,DisableIntrinsic,_hashCode --- 73,84 ---- // (i.e., the platform provides the instructions necessary for the compiler // to generate the intrinsic code). // // The second parameter, 'compilation_context', is needed to implement functionality // related to the DisableIntrinsic command-line flag. The DisableIntrinsic flag can ! // be used to prohibit the compilers to use an intrinsic. There are three ways to ! // disable an intrinsic using the DisableIntrinsic flag: // // (1) -XX:DisableIntrinsic=_hashCode,_getClass // Disables intrinsification of _hashCode and _getClass globally // (i.e., the intrinsified version the methods will not be used at all). // (2) -XX:CompileCommand=option,aClass::aMethod,ccstr,DisableIntrinsic,_hashCode
*** 94,104 **** // From the modes above, (1) disable intrinsics globally, (2) and (3) // disable intrinsics on a per-method basis. In cases (2) and (3) the // compilation context is aClass::aMethod and java.lang.ref.Reference::get, // respectively. virtual bool is_intrinsic_available(methodHandle method, methodHandle compilation_context) { ! return false; } // Determines if an intrinsic is supported by the compiler, that is, // the compiler provides the instructions necessary to generate // the intrinsic code for method 'method'. --- 94,105 ---- // From the modes above, (1) disable intrinsics globally, (2) and (3) // disable intrinsics on a per-method basis. In cases (2) and (3) the // compilation context is aClass::aMethod and java.lang.ref.Reference::get, // respectively. virtual bool is_intrinsic_available(methodHandle method, methodHandle compilation_context) { ! return is_intrinsic_supported(method) && ! !vmIntrinsics::is_disabled_by_flags(method, compilation_context); } // Determines if an intrinsic is supported by the compiler, that is, // the compiler provides the instructions necessary to generate // the intrinsic code for method 'method'.
*** 109,125 **** // to this behavior. virtual bool is_intrinsic_supported(methodHandle method) { return false; } - // Implements compiler-specific processing of command-line flags. - // Processing of command-line flags common to all compilers is implemented - // in vmIntrinsicss::is_disabled_by_flag. - virtual bool is_intrinsic_disabled_by_flag(methodHandle method) { - return false; - } - // Compiler type queries. bool is_c1() { return _type == c1; } bool is_c2() { return _type == c2; } bool is_shark() { return _type == shark; } --- 110,119 ----
src/share/vm/compiler/abstractCompiler.hpp
Index Unified diffs Context diffs Sdiffs Patch New Old Previous File Next File