jdk8-mips64-public/hotspot: src/cpu/ppc/vm/globalDefinitions

8024342: PPC64 (part 111): Support for C calling conventions that require 64-bit ints.
Summary: Some platforms, as ppc and s390x/zArch require that 32-bit ints are passed as 64-bit values to C functions. This change adds support to adapt the signature and to issue proper casts to c2-compiled stubs. The functions are used in generate_native_wrapper(). Adapt signature used by the compiler as in PhaseIdealLoop::intrinsify_fill().
Reviewed-by: kvn

     1 /*

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    26 #ifndef CPU_PPC_VM_GLOBALDEFINITIONS_PPC_HPP

    27 #define CPU_PPC_VM_GLOBALDEFINITIONS_PPC_HPP

    29 // Size of PPC Instructions

    30 const int BytesPerInstWord = 4;

    32 const int StackAlignmentInBytes = 16;

    34 // Indicates whether the C calling conventions require that

    35 // 32-bit integer argument values are properly extended to 64 bits.

    36 // If set, SharedRuntime::c_calling_convention() must adapt

    37 // signatures accordingly.

    38 const bool CCallingConventionRequiresIntsAsLongs = true;

    40 #endif // CPU_PPC_VM_GLOBALDEFINITIONS_PPC_HPP

src/cpu/ppc/vm/globalDefinitions_ppc.hpp@cfd05ec74089

src/cpu/ppc/vm/globalDefinitions_ppc.hpp

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

src/cpu/ppc/vm/globalDefinitions_ppc.hpp@cfd05ec74089

src/cpu/ppc/vm/globalDefinitions_ppc.hpp