src/cpu/x86/vm/globalDefinitions_x86.hpp

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rev 5190 : 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().

*** 25,32 **** --- 25,38 ---- #ifndef CPU_X86_VM_GLOBALDEFINITIONS_X86_HPP #define CPU_X86_VM_GLOBALDEFINITIONS_X86_HPP const int StackAlignmentInBytes = 16; + // Indicates whether the C calling conventions require that + // 32-bit integer argument values are properly extended to 64 bits. + // If set, SharedRuntime::c_calling_convention() must adapt + // signatures accordingly. + const bool CCallingConventionRequiresIntsAsLongs = false; + #define SUPPORTS_NATIVE_CX8 #endif // CPU_X86_VM_GLOBALDEFINITIONS_X86_HPP