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/* -----------------------------------------------------------------------------
*
* (c) The GHC Team, 1998-2011
*
* This header includes MachRegs.h "selecting" regs for the current host
* platform.
*
* Don't #include this in the RTS directly, instead include "RTS.h".
*
* To understand the structure of the RTS headers, see the wiki:
* https://gitlab.haskell.org/ghc/ghc/wikis/commentary/source-tree/includes
*
* ---------------------------------------------------------------------------*/
#pragma once
#if defined(UnregisterisedCompiler) || defined(javascript_HOST_ARCH)
#if !defined(NO_REGS)
#define NO_REGS
#endif
#endif
/*
* Defining NO_REGS causes no global registers to be used. NO_REGS is
* typically defined by GHC, via a command-line option passed to gcc,
* when the -funregisterised flag is given.
*
* It is also enabled for target architectures that really lack registers, such
* as JavaScript.
*
* NB. When NO_REGS is on, calling & return conventions may be
* different. For example, all function arguments will be passed on
* the stack, and components of an unboxed tuple will be returned on
* the stack rather than in registers.
*/
#if defined(NO_REGS)
#define MACHREGS_NO_REGS 1
#else
#define MACHREGS_NO_REGS 0
#if defined(i386_HOST_ARCH)
#define MACHREGS_i386 1
#endif
#if defined(x86_64_HOST_ARCH)
#define MACHREGS_x86_64 1
#endif
#if defined(powerpc_HOST_ARCH) || defined(powerpc64_HOST_ARCH) \
|| defined(powerpc64le_HOST_ARCH) || defined(rs6000_HOST_ARCH)
#define MACHREGS_powerpc 1
#endif
#if defined(arm_HOST_ARCH)
#define MACHREGS_arm 1
#endif
#if defined(aarch64_HOST_ARCH)
#define MACHREGS_aarch64 1
#endif
#if defined(darwin_HOST_OS)
#define MACHREGS_darwin 1
#endif
#if defined(s390x_HOST_ARCH)
#define MACHREGS_s390x 1
#endif
#if defined(riscv64_HOST_ARCH)
#define MACHREGS_riscv64 1
#endif
#if defined(wasm32_HOST_ARCH)
#undef MACHREGS_NO_REGS
#define MACHREGS_NO_REGS 1
#endif
#if defined(loongarch64_HOST_ARCH)
#define MACHREGS_loongarch64 1
#endif
#endif
#include "MachRegs.h"
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