view src/cpu/x86/vm/globalDefinitions_x86.hpp @ 6033:cfd05ec74089

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
author goetz
date Wed, 18 Sep 2013 14:34:56 -0700
parents 6b388e7d4905
children a9becfeecd1b
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/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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#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