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/*
** IR CALL* instruction definitions.
** Copyright (C) 2005-2016 Mike Pall. See Copyright Notice in luajit.h
*/
#ifndef _LJ_IRCALL_H
#define _LJ_IRCALL_H
#include "lj_obj.h"
#include "lj_ir.h"
#include "lj_jit.h"
/* C call info for CALL* instructions. */
typedef struct CCallInfo {
ASMFunction func; /* Function pointer. */
uint32_t flags; /* Number of arguments and flags. */
} CCallInfo;
#define CCI_NARGS(ci) ((ci)->flags & 0xff) /* # of args. */
#define CCI_NARGS_MAX 32 /* Max. # of args. */
#define CCI_OTSHIFT 16
#define CCI_OPTYPE(ci) ((ci)->flags >> CCI_OTSHIFT) /* Get op/type. */
#define CCI_OPSHIFT 24
#define CCI_OP(ci) ((ci)->flags >> CCI_OPSHIFT) /* Get op. */
#define CCI_CALL_N (IR_CALLN << CCI_OPSHIFT)
#define CCI_CALL_A (IR_CALLA << CCI_OPSHIFT)
#define CCI_CALL_L (IR_CALLL << CCI_OPSHIFT)
#define CCI_CALL_S (IR_CALLS << CCI_OPSHIFT)
#define CCI_CALL_FN (CCI_CALL_N|CCI_CC_FASTCALL)
#define CCI_CALL_FL (CCI_CALL_L|CCI_CC_FASTCALL)
#define CCI_CALL_FS (CCI_CALL_S|CCI_CC_FASTCALL)
/* C call info flags. */
#define CCI_L 0x0100 /* Implicit L arg. */
#define CCI_CASTU64 0x0200 /* Cast u64 result to number. */
#define CCI_NOFPRCLOBBER 0x0400 /* Does not clobber any FPRs. */
#define CCI_VARARG 0x0800 /* Vararg function. */
#define CCI_CC_MASK 0x3000 /* Calling convention mask. */
#define CCI_CC_SHIFT 12
/* ORDER CC */
#define CCI_CC_CDECL 0x0000 /* Default cdecl calling convention. */
#define CCI_CC_THISCALL 0x1000 /* Thiscall calling convention. */
#define CCI_CC_FASTCALL 0x2000 /* Fastcall calling convention. */
#define CCI_CC_STDCALL 0x3000 /* Stdcall calling convention. */
/* Extra args for SOFTFP, SPLIT 64 bit. */
#define CCI_XARGS_SHIFT 14
#define CCI_XARGS(ci) (((ci)->flags >> CCI_XARGS_SHIFT) & 3)
#define CCI_XA (1u << CCI_XARGS_SHIFT)
#if LJ_SOFTFP || (LJ_32 && LJ_HASFFI)
#define CCI_XNARGS(ci) (CCI_NARGS((ci)) + CCI_XARGS((ci)))
#else
#define CCI_XNARGS(ci) CCI_NARGS((ci))
#endif
/* Helpers for conditional function definitions. */
#define IRCALLCOND_ANY(x) x
#if LJ_TARGET_X86ORX64
#define IRCALLCOND_FPMATH(x) NULL
#else
#define IRCALLCOND_FPMATH(x) x
#endif
#if LJ_SOFTFP
#define IRCALLCOND_SOFTFP(x) x
#if LJ_HASFFI
#define IRCALLCOND_SOFTFP_FFI(x) x
#else
#define IRCALLCOND_SOFTFP_FFI(x) NULL
#endif
#else
#define IRCALLCOND_SOFTFP(x) NULL
#define IRCALLCOND_SOFTFP_FFI(x) NULL
#endif
#if LJ_SOFTFP && LJ_TARGET_MIPS
#define IRCALLCOND_SOFTFP_MIPS(x) x
#else
#define IRCALLCOND_SOFTFP_MIPS(x) NULL
#endif
#define LJ_NEED_FP64 (LJ_TARGET_ARM || LJ_TARGET_PPC || LJ_TARGET_MIPS)
#if LJ_HASFFI && (LJ_SOFTFP || LJ_NEED_FP64)
#define IRCALLCOND_FP64_FFI(x) x
#else
#define IRCALLCOND_FP64_FFI(x) NULL
#endif
#if LJ_HASFFI
#define IRCALLCOND_FFI(x) x
#if LJ_32
#define IRCALLCOND_FFI32(x) x
#else
#define IRCALLCOND_FFI32(x) NULL
#endif
#else
#define IRCALLCOND_FFI(x) NULL
#define IRCALLCOND_FFI32(x) NULL
#endif
#if LJ_TARGET_X86
#define CCI_RANDFPR 0 /* Clang on OSX/x86 is overzealous. */
#else
#define CCI_RANDFPR CCI_NOFPRCLOBBER
#endif
#if LJ_SOFTFP
#define XA_FP CCI_XA
#define XA2_FP (CCI_XA+CCI_XA)
#else
#define XA_FP 0
#define XA2_FP 0
#endif
#if LJ_32
#define XA_64 CCI_XA
#define XA2_64 (CCI_XA+CCI_XA)
#else
#define XA_64 0
#define XA2_64 0
#endif
/* Function definitions for CALL* instructions. */
#define IRCALLDEF(_) \
_(ANY, lj_str_cmp, 2, FN, INT, CCI_NOFPRCLOBBER) \
_(ANY, lj_str_find, 4, N, P32, 0) \
_(ANY, lj_str_new, 3, S, STR, CCI_L) \
_(ANY, lj_strscan_num, 2, FN, INT, 0) \
_(ANY, lj_strfmt_int, 2, FN, STR, CCI_L) \
_(ANY, lj_strfmt_num, 2, FN, STR, CCI_L) \
_(ANY, lj_strfmt_char, 2, FN, STR, CCI_L) \
_(ANY, lj_strfmt_putint, 2, FL, P32, 0) \
_(ANY, lj_strfmt_putnum, 2, FL, P32, 0) \
_(ANY, lj_strfmt_putquoted, 2, FL, P32, 0) \
_(ANY, lj_strfmt_putfxint, 3, L, P32, XA_64) \
_(ANY, lj_strfmt_putfnum_int, 3, L, P32, XA_FP) \
_(ANY, lj_strfmt_putfnum_uint, 3, L, P32, XA_FP) \
_(ANY, lj_strfmt_putfnum, 3, L, P32, XA_FP) \
_(ANY, lj_strfmt_putfstr, 3, L, P32, 0) \
_(ANY, lj_strfmt_putfchar, 3, L, P32, 0) \
_(ANY, lj_buf_putmem, 3, S, P32, 0) \
_(ANY, lj_buf_putstr, 2, FL, P32, 0) \
_(ANY, lj_buf_putchar, 2, FL, P32, 0) \
_(ANY, lj_buf_putstr_reverse, 2, FL, P32, 0) \
_(ANY, lj_buf_putstr_lower, 2, FL, P32, 0) \
_(ANY, lj_buf_putstr_upper, 2, FL, P32, 0) \
_(ANY, lj_buf_putstr_rep, 3, L, P32, 0) \
_(ANY, lj_buf_puttab, 5, L, P32, 0) \
_(ANY, lj_buf_tostr, 1, FL, STR, 0) \
_(ANY, lj_tab_new_ah, 3, A, TAB, CCI_L) \
_(ANY, lj_tab_new1, 2, FS, TAB, CCI_L) \
_(ANY, lj_tab_dup, 2, FS, TAB, CCI_L) \
_(ANY, lj_tab_clear, 1, FS, NIL, 0) \
_(ANY, lj_tab_newkey, 3, S, P32, CCI_L) \
_(ANY, lj_tab_len, 1, FL, INT, 0) \
_(ANY, lj_gc_step_jit, 2, FS, NIL, CCI_L) \
_(ANY, lj_gc_barrieruv, 2, FS, NIL, 0) \
_(ANY, lj_mem_newgco, 2, FS, P32, CCI_L) \
_(ANY, lj_math_random_step, 1, FS, NUM, CCI_CASTU64|CCI_RANDFPR)\
_(ANY, lj_vm_modi, 2, FN, INT, 0) \
_(ANY, sinh, 1, N, NUM, XA_FP) \
_(ANY, cosh, 1, N, NUM, XA_FP) \
_(ANY, tanh, 1, N, NUM, XA_FP) \
_(ANY, fputc, 2, S, INT, 0) \
_(ANY, fwrite, 4, S, INT, 0) \
_(ANY, fflush, 1, S, INT, 0) \
/* ORDER FPM */ \
_(FPMATH, lj_vm_floor, 1, N, NUM, XA_FP) \
_(FPMATH, lj_vm_ceil, 1, N, NUM, XA_FP) \
_(FPMATH, lj_vm_trunc, 1, N, NUM, XA_FP) \
_(FPMATH, sqrt, 1, N, NUM, XA_FP) \
_(ANY, exp, 1, N, NUM, XA_FP) \
_(ANY, lj_vm_exp2, 1, N, NUM, XA_FP) \
_(ANY, log, 1, N, NUM, XA_FP) \
_(ANY, lj_vm_log2, 1, N, NUM, XA_FP) \
_(ANY, log10, 1, N, NUM, XA_FP) \
_(ANY, sin, 1, N, NUM, XA_FP) \
_(ANY, cos, 1, N, NUM, XA_FP) \
_(ANY, tan, 1, N, NUM, XA_FP) \
_(ANY, lj_vm_powi, 2, N, NUM, XA_FP) \
_(ANY, pow, 2, N, NUM, XA2_FP) \
_(ANY, atan2, 2, N, NUM, XA2_FP) \
_(ANY, ldexp, 2, N, NUM, XA_FP) \
_(SOFTFP, lj_vm_tobit, 2, N, INT, 0) \
_(SOFTFP, softfp_add, 4, N, NUM, 0) \
_(SOFTFP, softfp_sub, 4, N, NUM, 0) \
_(SOFTFP, softfp_mul, 4, N, NUM, 0) \
_(SOFTFP, softfp_div, 4, N, NUM, 0) \
_(SOFTFP, softfp_cmp, 4, N, NIL, 0) \
_(SOFTFP, softfp_i2d, 1, N, NUM, 0) \
_(SOFTFP, softfp_d2i, 2, N, INT, 0) \
_(SOFTFP_MIPS, lj_vm_sfmin, 4, N, NUM, 0) \
_(SOFTFP_MIPS, lj_vm_sfmax, 4, N, NUM, 0) \
_(SOFTFP_FFI, softfp_ui2d, 1, N, NUM, 0) \
_(SOFTFP_FFI, softfp_f2d, 1, N, NUM, 0) \
_(SOFTFP_FFI, softfp_d2ui, 2, N, INT, 0) \
_(SOFTFP_FFI, softfp_d2f, 2, N, FLOAT, 0) \
_(SOFTFP_FFI, softfp_i2f, 1, N, FLOAT, 0) \
_(SOFTFP_FFI, softfp_ui2f, 1, N, FLOAT, 0) \
_(SOFTFP_FFI, softfp_f2i, 1, N, INT, 0) \
_(SOFTFP_FFI, softfp_f2ui, 1, N, INT, 0) \
_(FP64_FFI, fp64_l2d, 1, N, NUM, XA_64) \
_(FP64_FFI, fp64_ul2d, 1, N, NUM, XA_64) \
_(FP64_FFI, fp64_l2f, 1, N, FLOAT, XA_64) \
_(FP64_FFI, fp64_ul2f, 1, N, FLOAT, XA_64) \
_(FP64_FFI, fp64_d2l, 1, N, I64, XA_FP) \
_(FP64_FFI, fp64_d2ul, 1, N, U64, XA_FP) \
_(FP64_FFI, fp64_f2l, 1, N, I64, 0) \
_(FP64_FFI, fp64_f2ul, 1, N, U64, 0) \
_(FFI, lj_carith_divi64, 2, N, I64, XA2_64|CCI_NOFPRCLOBBER) \
_(FFI, lj_carith_divu64, 2, N, U64, XA2_64|CCI_NOFPRCLOBBER) \
_(FFI, lj_carith_modi64, 2, N, I64, XA2_64|CCI_NOFPRCLOBBER) \
_(FFI, lj_carith_modu64, 2, N, U64, XA2_64|CCI_NOFPRCLOBBER) \
_(FFI, lj_carith_powi64, 2, N, I64, XA2_64|CCI_NOFPRCLOBBER) \
_(FFI, lj_carith_powu64, 2, N, U64, XA2_64|CCI_NOFPRCLOBBER) \
_(FFI, lj_cdata_newv, 4, S, CDATA, CCI_L) \
_(FFI, lj_cdata_setfin, 4, S, NIL, CCI_L) \
_(FFI, strlen, 1, L, INTP, 0) \
_(FFI, memcpy, 3, S, PTR, 0) \
_(FFI, memset, 3, S, PTR, 0) \
_(FFI, lj_vm_errno, 0, S, INT, CCI_NOFPRCLOBBER) \
_(FFI32, lj_carith_mul64, 2, N, I64, XA2_64|CCI_NOFPRCLOBBER) \
_(FFI32, lj_carith_shl64, 2, N, U64, XA_64|CCI_NOFPRCLOBBER) \
_(FFI32, lj_carith_shr64, 2, N, U64, XA_64|CCI_NOFPRCLOBBER) \
_(FFI32, lj_carith_sar64, 2, N, U64, XA_64|CCI_NOFPRCLOBBER) \
_(FFI32, lj_carith_rol64, 2, N, U64, XA_64|CCI_NOFPRCLOBBER) \
_(FFI32, lj_carith_ror64, 2, N, U64, XA_64|CCI_NOFPRCLOBBER) \
\
/* End of list. */
typedef enum {
#define IRCALLENUM(cond, name, nargs, kind, type, flags) IRCALL_##name,
IRCALLDEF(IRCALLENUM)
#undef IRCALLENUM
IRCALL__MAX
} IRCallID;
LJ_FUNC TRef lj_ir_call(jit_State *J, IRCallID id, ...);
LJ_DATA const CCallInfo lj_ir_callinfo[IRCALL__MAX+1];
/* Soft-float declarations. */
#if LJ_SOFTFP
#if LJ_TARGET_ARM
#define softfp_add __aeabi_dadd
#define softfp_sub __aeabi_dsub
#define softfp_mul __aeabi_dmul
#define softfp_div __aeabi_ddiv
#define softfp_cmp __aeabi_cdcmple
#define softfp_i2d __aeabi_i2d
#define softfp_d2i __aeabi_d2iz
#define softfp_ui2d __aeabi_ui2d
#define softfp_f2d __aeabi_f2d
#define softfp_d2ui __aeabi_d2uiz
#define softfp_d2f __aeabi_d2f
#define softfp_i2f __aeabi_i2f
#define softfp_ui2f __aeabi_ui2f
#define softfp_f2i __aeabi_f2iz
#define softfp_f2ui __aeabi_f2uiz
#define fp64_l2d __aeabi_l2d
#define fp64_ul2d __aeabi_ul2d
#define fp64_l2f __aeabi_l2f
#define fp64_ul2f __aeabi_ul2f
#if LJ_TARGET_IOS
#define fp64_d2l __fixdfdi
#define fp64_d2ul __fixunsdfdi
#define fp64_f2l __fixsfdi
#define fp64_f2ul __fixunssfdi
#else
#define fp64_d2l __aeabi_d2lz
#define fp64_d2ul __aeabi_d2ulz
#define fp64_f2l __aeabi_f2lz
#define fp64_f2ul __aeabi_f2ulz
#endif
#elif LJ_TARGET_MIPS
#define softfp_add __adddf3
#define softfp_sub __subdf3
#define softfp_mul __muldf3
#define softfp_div __divdf3
#define softfp_cmp __ledf2
#define softfp_i2d __floatsidf
#define softfp_d2i __fixdfsi
#define softfp_ui2d __floatunsidf
#define softfp_f2d __extendsfdf2
#define softfp_d2ui __fixunsdfsi
#define softfp_d2f __truncdfsf2
#define softfp_i2f __floatsisf
#define softfp_ui2f __floatunsisf
#define softfp_f2i __fixsfsi
#define softfp_f2ui __fixunssfsi
#else
#error "Missing soft-float definitions for target architecture"
#endif
extern double softfp_add(double a, double b);
extern double softfp_sub(double a, double b);
extern double softfp_mul(double a, double b);
extern double softfp_div(double a, double b);
extern void softfp_cmp(double a, double b);
extern double softfp_i2d(int32_t a);
extern int32_t softfp_d2i(double a);
#if LJ_HASFFI
extern double softfp_ui2d(uint32_t a);
extern double softfp_f2d(float a);
extern uint32_t softfp_d2ui(double a);
extern float softfp_d2f(double a);
extern float softfp_i2f(int32_t a);
extern float softfp_ui2f(uint32_t a);
extern int32_t softfp_f2i(float a);
extern uint32_t softfp_f2ui(float a);
#endif
#if LJ_TARGET_MIPS
extern double lj_vm_sfmin(double a, double b);
extern double lj_vm_sfmax(double a, double b);
#endif
#endif
#if LJ_HASFFI && LJ_NEED_FP64 && !(LJ_TARGET_ARM && LJ_SOFTFP)
#ifdef __GNUC__
#define fp64_l2d __floatdidf
#define fp64_ul2d __floatundidf
#define fp64_l2f __floatdisf
#define fp64_ul2f __floatundisf
#define fp64_d2l __fixdfdi
#define fp64_d2ul __fixunsdfdi
#define fp64_f2l __fixsfdi
#define fp64_f2ul __fixunssfdi
#else
#error "Missing fp64 helper definitions for this compiler"
#endif
#endif
#if LJ_HASFFI && (LJ_SOFTFP || LJ_NEED_FP64)
extern double fp64_l2d(int64_t a);
extern double fp64_ul2d(uint64_t a);
extern float fp64_l2f(int64_t a);
extern float fp64_ul2f(uint64_t a);
extern int64_t fp64_d2l(double a);
extern uint64_t fp64_d2ul(double a);
extern int64_t fp64_f2l(float a);
extern uint64_t fp64_f2ul(float a);
#endif
#endif
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