// // m3_exec.h // // Created by Steven Massey on 4/17/19. // Copyright © 2019 Steven Massey. All rights reserved. #ifndef m3_exec_h #define m3_exec_h // TODO: all these functions could move over to the .c at some point. normally, I'd say screw it, // but it might prove useful to be able to compile m3_exec alone w/ optimizations while the remaining // code is at debug O0 // About the naming convention of these operations/macros (_rs, _sr_, _ss, _srs, etc.) //------------------------------------------------------------------------------------------------------ // - 'r' means register and 's' means slot // - the first letter is the top of the stack // // so, for example, _rs means the first operand (the first thing pushed to the stack) is in a slot // and the second operand (the top of the stack) is in a register //------------------------------------------------------------------------------------------------------ #ifndef M3_COMPILE_OPCODES # error "Opcodes should only be included in one compilation unit" #endif #include "m3_math_utils.h" #include "m3_compile.h" #include "m3_env.h" #include "m3_info.h" #include "m3_exec_defs.h" #include d_m3BeginExternC # define rewrite_op(OP) * ((void **) (_pc-1)) = (void*)(OP) # define immediate(TYPE) * ((TYPE *) _pc++) # define skip_immediate(TYPE) (_pc++) # define slot(TYPE) * (TYPE *) (_sp + immediate (i32)) # define slot_ptr(TYPE) (TYPE *) (_sp + immediate (i32)) # if d_m3EnableOpProfiling d_m3RetSig profileOp (d_m3OpSig, cstr_t i_operationName); # define nextOp() return profileOp (d_m3OpAllArgs, __FUNCTION__) # elif d_m3EnableOpTracing d_m3RetSig debugOp (d_m3OpSig, cstr_t i_operationName); # define nextOp() return debugOp (d_m3OpAllArgs, __FUNCTION__) # else # define nextOp() nextOpDirect() # endif #define jumpOp(PC) jumpOpDirect(PC) #if d_m3RecordBacktraces #define pushBacktraceFrame() (PushBacktraceFrame (_mem->runtime, _pc - 1)) #define fillBacktraceFrame(FUNCTION) (FillBacktraceFunctionInfo (_mem->runtime, function)) #define newTrap(err) return (pushBacktraceFrame (), err) #define forwardTrap(err) return err #else #define pushBacktraceFrame() do {} while (0) #define fillBacktraceFrame(FUNCTION) do {} while (0) #define newTrap(err) return err #define forwardTrap(err) return err #endif #if d_m3EnableStrace == 1 // Flat trace #define d_m3TracePrepare #define d_m3TracePrint(fmt, ...) fprintf(stderr, fmt "\n", ##__VA_ARGS__) #elif d_m3EnableStrace >= 2 // Structured trace #define d_m3TracePrepare const IM3Runtime trace_rt = m3MemRuntime(_mem); #define d_m3TracePrint(fmt, ...) fprintf(stderr, "%*s" fmt "\n", (trace_rt->callDepth)*2, "", ##__VA_ARGS__) #else #define d_m3TracePrepare #define d_m3TracePrint(fmt, ...) #endif #if d_m3EnableStrace >= 3 #define d_m3TraceLoad(TYPE,offset,val) d_m3TracePrint("load." #TYPE " 0x%x = %" PRI##TYPE, offset, val) #define d_m3TraceStore(TYPE,offset,val) d_m3TracePrint("store." #TYPE " 0x%x , %" PRI##TYPE, offset, val) #else #define d_m3TraceLoad(TYPE,offset,val) #define d_m3TraceStore(TYPE,offset,val) #endif #ifdef DEBUG #define d_outOfBounds newTrap (ErrorRuntime (m3Err_trapOutOfBoundsMemoryAccess, \ _mem->runtime, "memory size: %zu; access offset: %zu", \ _mem->length, operand)) # define d_outOfBoundsMemOp(OFFSET, SIZE) newTrap (ErrorRuntime (m3Err_trapOutOfBoundsMemoryAccess, \ _mem->runtime, "memory size: %zu; access offset: %zu; size: %u", \ _mem->length, OFFSET, SIZE)) #else #define d_outOfBounds newTrap (m3Err_trapOutOfBoundsMemoryAccess) # define d_outOfBoundsMemOp(OFFSET, SIZE) newTrap (m3Err_trapOutOfBoundsMemoryAccess) #endif d_m3RetSig Call (d_m3OpSig) { m3ret_t possible_trap = m3_Yield (); if (M3_UNLIKELY(possible_trap)) return possible_trap; nextOpDirect(); } // TODO: OK, this needs some explanation here ;0 #define d_m3CommutativeOpMacro(RES, REG, TYPE, NAME, OP, ...) \ d_m3Op(TYPE##_##NAME##_rs) \ { \ TYPE operand = slot (TYPE); \ OP((RES), operand, ((TYPE) REG), ##__VA_ARGS__); \ nextOp (); \ } \ d_m3Op(TYPE##_##NAME##_ss) \ { \ TYPE operand2 = slot (TYPE); \ TYPE operand1 = slot (TYPE); \ OP((RES), operand1, operand2, ##__VA_ARGS__); \ nextOp (); \ } #define d_m3OpMacro(RES, REG, TYPE, NAME, OP, ...) \ d_m3Op(TYPE##_##NAME##_sr) \ { \ TYPE operand = slot (TYPE); \ OP((RES), ((TYPE) REG), operand, ##__VA_ARGS__); \ nextOp (); \ } \ d_m3CommutativeOpMacro(RES, REG, TYPE,NAME, OP, ##__VA_ARGS__) // Accept macros #define d_m3CommutativeOpMacro_i(TYPE, NAME, MACRO, ...) d_m3CommutativeOpMacro ( _r0, _r0, TYPE, NAME, MACRO, ##__VA_ARGS__) #define d_m3OpMacro_i(TYPE, NAME, MACRO, ...) d_m3OpMacro ( _r0, _r0, TYPE, NAME, MACRO, ##__VA_ARGS__) #define d_m3CommutativeOpMacro_f(TYPE, NAME, MACRO, ...) d_m3CommutativeOpMacro (_fp0, _fp0, TYPE, NAME, MACRO, ##__VA_ARGS__) #define d_m3OpMacro_f(TYPE, NAME, MACRO, ...) d_m3OpMacro (_fp0, _fp0, TYPE, NAME, MACRO, ##__VA_ARGS__) #define M3_FUNC(RES, A, B, OP) (RES) = OP((A), (B)) // Accept functions: res = OP(a,b) #define M3_OPER(RES, A, B, OP) (RES) = ((A) OP (B)) // Accept operators: res = a OP b #define d_m3CommutativeOpFunc_i(TYPE, NAME, OP) d_m3CommutativeOpMacro_i (TYPE, NAME, M3_FUNC, OP) #define d_m3OpFunc_i(TYPE, NAME, OP) d_m3OpMacro_i (TYPE, NAME, M3_FUNC, OP) #define d_m3CommutativeOpFunc_f(TYPE, NAME, OP) d_m3CommutativeOpMacro_f (TYPE, NAME, M3_FUNC, OP) #define d_m3OpFunc_f(TYPE, NAME, OP) d_m3OpMacro_f (TYPE, NAME, M3_FUNC, OP) #define d_m3CommutativeOp_i(TYPE, NAME, OP) d_m3CommutativeOpMacro_i (TYPE, NAME, M3_OPER, OP) #define d_m3Op_i(TYPE, NAME, OP) d_m3OpMacro_i (TYPE, NAME, M3_OPER, OP) #define d_m3CommutativeOp_f(TYPE, NAME, OP) d_m3CommutativeOpMacro_f (TYPE, NAME, M3_OPER, OP) #define d_m3Op_f(TYPE, NAME, OP) d_m3OpMacro_f (TYPE, NAME, M3_OPER, OP) // compare needs to be distinct for fp 'cause the result must be _r0 #define d_m3CompareOp_f(TYPE, NAME, OP) d_m3OpMacro (_r0, _fp0, TYPE, NAME, M3_OPER, OP) #define d_m3CommutativeCmpOp_f(TYPE, NAME, OP) d_m3CommutativeOpMacro (_r0, _fp0, TYPE, NAME, M3_OPER, OP) //----------------------- // signed d_m3CommutativeOp_i (i32, Equal, ==) d_m3CommutativeOp_i (i64, Equal, ==) d_m3CommutativeOp_i (i32, NotEqual, !=) d_m3CommutativeOp_i (i64, NotEqual, !=) d_m3Op_i (i32, LessThan, < ) d_m3Op_i (i64, LessThan, < ) d_m3Op_i (i32, GreaterThan, > ) d_m3Op_i (i64, GreaterThan, > ) d_m3Op_i (i32, LessThanOrEqual, <=) d_m3Op_i (i64, LessThanOrEqual, <=) d_m3Op_i (i32, GreaterThanOrEqual, >=) d_m3Op_i (i64, GreaterThanOrEqual, >=) // unsigned d_m3Op_i (u32, LessThan, < ) d_m3Op_i (u64, LessThan, < ) d_m3Op_i (u32, GreaterThan, > ) d_m3Op_i (u64, GreaterThan, > ) d_m3Op_i (u32, LessThanOrEqual, <=) d_m3Op_i (u64, LessThanOrEqual, <=) d_m3Op_i (u32, GreaterThanOrEqual, >=) d_m3Op_i (u64, GreaterThanOrEqual, >=) #if d_m3HasFloat d_m3CommutativeCmpOp_f (f32, Equal, ==) d_m3CommutativeCmpOp_f (f64, Equal, ==) d_m3CommutativeCmpOp_f (f32, NotEqual, !=) d_m3CommutativeCmpOp_f (f64, NotEqual, !=) d_m3CompareOp_f (f32, LessThan, < ) d_m3CompareOp_f (f64, LessThan, < ) d_m3CompareOp_f (f32, GreaterThan, > ) d_m3CompareOp_f (f64, GreaterThan, > ) d_m3CompareOp_f (f32, LessThanOrEqual, <=) d_m3CompareOp_f (f64, LessThanOrEqual, <=) d_m3CompareOp_f (f32, GreaterThanOrEqual, >=) d_m3CompareOp_f (f64, GreaterThanOrEqual, >=) #endif d_m3CommutativeOp_i (i32, Add, +) d_m3CommutativeOp_i (i64, Add, +) d_m3CommutativeOp_i (i32, Multiply, *) d_m3CommutativeOp_i (i64, Multiply, *) d_m3Op_i (i32, Subtract, -) d_m3Op_i (i64, Subtract, -) #define OP_SHL_32(X,N) ((X) << ((u32)(N) % 32)) #define OP_SHL_64(X,N) ((X) << ((u64)(N) % 64)) #define OP_SHR_32(X,N) ((X) >> ((u32)(N) % 32)) #define OP_SHR_64(X,N) ((X) >> ((u64)(N) % 64)) d_m3OpFunc_i (u32, ShiftLeft, OP_SHL_32) d_m3OpFunc_i (u64, ShiftLeft, OP_SHL_64) d_m3OpFunc_i (i32, ShiftRight, OP_SHR_32) d_m3OpFunc_i (i64, ShiftRight, OP_SHR_64) d_m3OpFunc_i (u32, ShiftRight, OP_SHR_32) d_m3OpFunc_i (u64, ShiftRight, OP_SHR_64) d_m3CommutativeOp_i (u32, And, &) d_m3CommutativeOp_i (u32, Or, |) d_m3CommutativeOp_i (u32, Xor, ^) d_m3CommutativeOp_i (u64, And, &) d_m3CommutativeOp_i (u64, Or, |) d_m3CommutativeOp_i (u64, Xor, ^) #if d_m3HasFloat d_m3CommutativeOp_f (f32, Add, +) d_m3CommutativeOp_f (f64, Add, +) d_m3CommutativeOp_f (f32, Multiply, *) d_m3CommutativeOp_f (f64, Multiply, *) d_m3Op_f (f32, Subtract, -) d_m3Op_f (f64, Subtract, -) d_m3Op_f (f32, Divide, /) d_m3Op_f (f64, Divide, /) #endif d_m3OpFunc_i(u32, Rotl, rotl32) d_m3OpFunc_i(u32, Rotr, rotr32) d_m3OpFunc_i(u64, Rotl, rotl64) d_m3OpFunc_i(u64, Rotr, rotr64) d_m3OpMacro_i(u32, Divide, OP_DIV_U); d_m3OpMacro_i(i32, Divide, OP_DIV_S, INT32_MIN); d_m3OpMacro_i(u64, Divide, OP_DIV_U); d_m3OpMacro_i(i64, Divide, OP_DIV_S, INT64_MIN); d_m3OpMacro_i(u32, Remainder, OP_REM_U); d_m3OpMacro_i(i32, Remainder, OP_REM_S, INT32_MIN); d_m3OpMacro_i(u64, Remainder, OP_REM_U); d_m3OpMacro_i(i64, Remainder, OP_REM_S, INT64_MIN); #if d_m3HasFloat d_m3OpFunc_f(f32, Min, min_f32); d_m3OpFunc_f(f32, Max, max_f32); d_m3OpFunc_f(f64, Min, min_f64); d_m3OpFunc_f(f64, Max, max_f64); d_m3OpFunc_f(f32, CopySign, copysignf); d_m3OpFunc_f(f64, CopySign, copysign); #endif // Unary operations // Note: This macro follows the principle of d_m3OpMacro #define d_m3UnaryMacro(RES, REG, TYPE, NAME, OP, ...) \ d_m3Op(TYPE##_##NAME##_r) \ { \ OP((RES), (TYPE) REG, ##__VA_ARGS__); \ nextOp (); \ } \ d_m3Op(TYPE##_##NAME##_s) \ { \ TYPE operand = slot (TYPE); \ OP((RES), operand, ##__VA_ARGS__); \ nextOp (); \ } #define M3_UNARY(RES, X, OP) (RES) = OP(X) #define d_m3UnaryOp_i(TYPE, NAME, OPERATION) d_m3UnaryMacro( _r0, _r0, TYPE, NAME, M3_UNARY, OPERATION) #define d_m3UnaryOp_f(TYPE, NAME, OPERATION) d_m3UnaryMacro(_fp0, _fp0, TYPE, NAME, M3_UNARY, OPERATION) #if d_m3HasFloat d_m3UnaryOp_f (f32, Abs, fabsf); d_m3UnaryOp_f (f64, Abs, fabs); d_m3UnaryOp_f (f32, Ceil, ceilf); d_m3UnaryOp_f (f64, Ceil, ceil); d_m3UnaryOp_f (f32, Floor, floorf); d_m3UnaryOp_f (f64, Floor, floor); d_m3UnaryOp_f (f32, Trunc, truncf); d_m3UnaryOp_f (f64, Trunc, trunc); d_m3UnaryOp_f (f32, Sqrt, sqrtf); d_m3UnaryOp_f (f64, Sqrt, sqrt); d_m3UnaryOp_f (f32, Nearest, rintf); d_m3UnaryOp_f (f64, Nearest, rint); d_m3UnaryOp_f (f32, Negate, -); d_m3UnaryOp_f (f64, Negate, -); #endif #define OP_EQZ(x) ((x) == 0) d_m3UnaryOp_i (i32, EqualToZero, OP_EQZ) d_m3UnaryOp_i (i64, EqualToZero, OP_EQZ) // clz(0), ctz(0) results are undefined for rest platforms, fix it #if (defined(__i386__) || defined(__x86_64__)) && !(defined(__AVX2__) || (defined(__ABM__) && defined(__BMI__))) #define OP_CLZ_32(x) (M3_UNLIKELY((x) == 0) ? 32 : __builtin_clz(x)) #define OP_CTZ_32(x) (M3_UNLIKELY((x) == 0) ? 32 : __builtin_ctz(x)) // for 64-bit instructions branchless approach more preferable #define OP_CLZ_64(x) (__builtin_clzll((x) | (1LL << 0)) + OP_EQZ(x)) #define OP_CTZ_64(x) (__builtin_ctzll((x) | (1LL << 63)) + OP_EQZ(x)) #elif defined(__ppc__) || defined(__ppc64__) // PowerPC is defined for __builtin_clz(0) and __builtin_ctz(0). // See (https://github.com/aquynh/capstone/blob/master/MathExtras.h#L99) #define OP_CLZ_32(x) __builtin_clz(x) #define OP_CTZ_32(x) __builtin_ctz(x) #define OP_CLZ_64(x) __builtin_clzll(x) #define OP_CTZ_64(x) __builtin_ctzll(x) #else #define OP_CLZ_32(x) (M3_UNLIKELY((x) == 0) ? 32 : __builtin_clz(x)) #define OP_CTZ_32(x) (M3_UNLIKELY((x) == 0) ? 32 : __builtin_ctz(x)) #define OP_CLZ_64(x) (M3_UNLIKELY((x) == 0) ? 64 : __builtin_clzll(x)) #define OP_CTZ_64(x) (M3_UNLIKELY((x) == 0) ? 64 : __builtin_ctzll(x)) #endif d_m3UnaryOp_i (u32, Clz, OP_CLZ_32) d_m3UnaryOp_i (u64, Clz, OP_CLZ_64) d_m3UnaryOp_i (u32, Ctz, OP_CTZ_32) d_m3UnaryOp_i (u64, Ctz, OP_CTZ_64) d_m3UnaryOp_i (u32, Popcnt, __builtin_popcount) d_m3UnaryOp_i (u64, Popcnt, __builtin_popcountll) #define OP_WRAP_I64(X) ((X) & 0x00000000ffffffff) d_m3Op(i32_Wrap_i64_r) { _r0 = OP_WRAP_I64((i64) _r0); nextOp (); } d_m3Op(i32_Wrap_i64_s) { i64 operand = slot (i64); _r0 = OP_WRAP_I64(operand); nextOp (); } // Integer sign extension operations #define OP_EXTEND8_S_I32(X) ((int32_t)(int8_t)(X)) #define OP_EXTEND16_S_I32(X) ((int32_t)(int16_t)(X)) #define OP_EXTEND8_S_I64(X) ((int64_t)(int8_t)(X)) #define OP_EXTEND16_S_I64(X) ((int64_t)(int16_t)(X)) #define OP_EXTEND32_S_I64(X) ((int64_t)(int32_t)(X)) d_m3UnaryOp_i (i32, Extend8_s, OP_EXTEND8_S_I32) d_m3UnaryOp_i (i32, Extend16_s, OP_EXTEND16_S_I32) d_m3UnaryOp_i (i64, Extend8_s, OP_EXTEND8_S_I64) d_m3UnaryOp_i (i64, Extend16_s, OP_EXTEND16_S_I64) d_m3UnaryOp_i (i64, Extend32_s, OP_EXTEND32_S_I64) #define d_m3TruncMacro(DEST, SRC, TYPE, NAME, FROM, OP, ...) \ d_m3Op(TYPE##_##NAME##_##FROM##_r_r) \ { \ OP((DEST), (FROM) SRC, ##__VA_ARGS__); \ nextOp (); \ } \ d_m3Op(TYPE##_##NAME##_##FROM##_r_s) \ { \ FROM * stack = slot_ptr (FROM); \ OP((DEST), (* stack), ##__VA_ARGS__); \ nextOp (); \ } \ d_m3Op(TYPE##_##NAME##_##FROM##_s_r) \ { \ TYPE * dest = slot_ptr (TYPE); \ OP((* dest), (FROM) SRC, ##__VA_ARGS__); \ nextOp (); \ } \ d_m3Op(TYPE##_##NAME##_##FROM##_s_s) \ { \ FROM * stack = slot_ptr (FROM); \ TYPE * dest = slot_ptr (TYPE); \ OP((* dest), (* stack), ##__VA_ARGS__); \ nextOp (); \ } #if d_m3HasFloat d_m3TruncMacro(_r0, _fp0, i32, Trunc, f32, OP_I32_TRUNC_F32) d_m3TruncMacro(_r0, _fp0, u32, Trunc, f32, OP_U32_TRUNC_F32) d_m3TruncMacro(_r0, _fp0, i32, Trunc, f64, OP_I32_TRUNC_F64) d_m3TruncMacro(_r0, _fp0, u32, Trunc, f64, OP_U32_TRUNC_F64) d_m3TruncMacro(_r0, _fp0, i64, Trunc, f32, OP_I64_TRUNC_F32) d_m3TruncMacro(_r0, _fp0, u64, Trunc, f32, OP_U64_TRUNC_F32) d_m3TruncMacro(_r0, _fp0, i64, Trunc, f64, OP_I64_TRUNC_F64) d_m3TruncMacro(_r0, _fp0, u64, Trunc, f64, OP_U64_TRUNC_F64) d_m3TruncMacro(_r0, _fp0, i32, TruncSat, f32, OP_I32_TRUNC_SAT_F32) d_m3TruncMacro(_r0, _fp0, u32, TruncSat, f32, OP_U32_TRUNC_SAT_F32) d_m3TruncMacro(_r0, _fp0, i32, TruncSat, f64, OP_I32_TRUNC_SAT_F64) d_m3TruncMacro(_r0, _fp0, u32, TruncSat, f64, OP_U32_TRUNC_SAT_F64) d_m3TruncMacro(_r0, _fp0, i64, TruncSat, f32, OP_I64_TRUNC_SAT_F32) d_m3TruncMacro(_r0, _fp0, u64, TruncSat, f32, OP_U64_TRUNC_SAT_F32) d_m3TruncMacro(_r0, _fp0, i64, TruncSat, f64, OP_I64_TRUNC_SAT_F64) d_m3TruncMacro(_r0, _fp0, u64, TruncSat, f64, OP_U64_TRUNC_SAT_F64) #endif #define d_m3TypeModifyOp(REG_TO, REG_FROM, TO, NAME, FROM) \ d_m3Op(TO##_##NAME##_##FROM##_r) \ { \ REG_TO = (TO) ((FROM) REG_FROM); \ nextOp (); \ } \ \ d_m3Op(TO##_##NAME##_##FROM##_s) \ { \ FROM from = slot (FROM); \ REG_TO = (TO) (from); \ nextOp (); \ } // Int to int d_m3TypeModifyOp (_r0, _r0, i64, Extend, i32); d_m3TypeModifyOp (_r0, _r0, i64, Extend, u32); // Float to float #if d_m3HasFloat d_m3TypeModifyOp (_fp0, _fp0, f32, Demote, f64); d_m3TypeModifyOp (_fp0, _fp0, f64, Promote, f32); #endif #define d_m3TypeConvertOp(REG_TO, REG_FROM, TO, NAME, FROM) \ d_m3Op(TO##_##NAME##_##FROM##_r_r) \ { \ REG_TO = (TO) ((FROM) REG_FROM); \ nextOp (); \ } \ \ d_m3Op(TO##_##NAME##_##FROM##_s_r) \ { \ slot (TO) = (TO) ((FROM) REG_FROM); \ nextOp (); \ } \ \ d_m3Op(TO##_##NAME##_##FROM##_r_s) \ { \ FROM from = slot (FROM); \ REG_TO = (TO) (from); \ nextOp (); \ } \ \ d_m3Op(TO##_##NAME##_##FROM##_s_s) \ { \ FROM from = slot (FROM); \ slot (TO) = (TO) (from); \ nextOp (); \ } // Int to float #if d_m3HasFloat d_m3TypeConvertOp (_fp0, _r0, f64, Convert, i32); d_m3TypeConvertOp (_fp0, _r0, f64, Convert, u32); d_m3TypeConvertOp (_fp0, _r0, f64, Convert, i64); d_m3TypeConvertOp (_fp0, _r0, f64, Convert, u64); d_m3TypeConvertOp (_fp0, _r0, f32, Convert, i32); d_m3TypeConvertOp (_fp0, _r0, f32, Convert, u32); d_m3TypeConvertOp (_fp0, _r0, f32, Convert, i64); d_m3TypeConvertOp (_fp0, _r0, f32, Convert, u64); #endif #define d_m3ReinterpretOp(REG, TO, SRC, FROM) \ d_m3Op(TO##_Reinterpret_##FROM##_r_r) \ { \ union { FROM c; TO t; } u; \ u.c = (FROM) SRC; \ REG = u.t; \ nextOp (); \ } \ \ d_m3Op(TO##_Reinterpret_##FROM##_r_s) \ { \ union { FROM c; TO t; } u; \ u.c = slot (FROM); \ REG = u.t; \ nextOp (); \ } \ \ d_m3Op(TO##_Reinterpret_##FROM##_s_r) \ { \ union { FROM c; TO t; } u; \ u.c = (FROM) SRC; \ slot (TO) = u.t; \ nextOp (); \ } \ \ d_m3Op(TO##_Reinterpret_##FROM##_s_s) \ { \ union { FROM c; TO t; } u; \ u.c = slot (FROM); \ slot (TO) = u.t; \ nextOp (); \ } #if d_m3HasFloat d_m3ReinterpretOp (_r0, i32, _fp0, f32) d_m3ReinterpretOp (_r0, i64, _fp0, f64) d_m3ReinterpretOp (_fp0, f32, _r0, i32) d_m3ReinterpretOp (_fp0, f64, _r0, i64) #endif d_m3Op (GetGlobal_s32) { u32 * global = immediate (u32 *); slot (u32) = * global; // printf ("get global: %p %" PRIi64 "\n", global, *global); nextOp (); } d_m3Op (GetGlobal_s64) { u64 * global = immediate (u64 *); slot (u64) = * global; // printf ("get global: %p %" PRIi64 "\n", global, *global); nextOp (); } d_m3Op (SetGlobal_i32) { u32 * global = immediate (u32 *); * global = (u32) _r0; // printf ("set global: %p %" PRIi64 "\n", global, _r0); nextOp (); } d_m3Op (SetGlobal_i64) { u64 * global = immediate (u64 *); * global = (u64) _r0; // printf ("set global: %p %" PRIi64 "\n", global, _r0); nextOp (); } d_m3Op (Call) { pc_t callPC = immediate (pc_t); i32 stackOffset = immediate (i32); IM3Memory memory = m3MemInfo (_mem); m3stack_t sp = _sp + stackOffset; m3ret_t r = Call (callPC, sp, _mem, d_m3OpDefaultArgs); _mem = memory->mallocated; if (M3_LIKELY(not r)) nextOp (); else { pushBacktraceFrame (); forwardTrap (r); } } d_m3Op (CallIndirect) { u32 tableIndex = slot (u32); IM3Module module = immediate (IM3Module); IM3FuncType type = immediate (IM3FuncType); i32 stackOffset = immediate (i32); IM3Memory memory = m3MemInfo (_mem); m3stack_t sp = _sp + stackOffset; m3ret_t r = m3Err_none; if (M3_LIKELY(tableIndex < module->table0Size)) { IM3Function function = module->table0 [tableIndex]; if (M3_LIKELY(function)) { if (M3_LIKELY(type == function->funcType)) { if (M3_UNLIKELY(not function->compiled)) r = CompileFunction (function); if (M3_LIKELY(not r)) { r = Call (function->compiled, sp, _mem, d_m3OpDefaultArgs); _mem = memory->mallocated; if (M3_LIKELY(not r)) nextOpDirect (); else { pushBacktraceFrame (); forwardTrap (r); } } } else r = m3Err_trapIndirectCallTypeMismatch; } else r = m3Err_trapTableElementIsNull; } else r = m3Err_trapTableIndexOutOfRange; if (M3_UNLIKELY(r)) newTrap (r); else forwardTrap (r); } d_m3Op (CallRawFunction) { d_m3TracePrepare M3ImportContext ctx; M3RawCall call = (M3RawCall) (* _pc++); ctx.function = immediate (IM3Function); ctx.userdata = immediate (void *); u64* const sp = ((u64*)_sp); IM3Memory memory = m3MemInfo (_mem); IM3Runtime runtime = m3MemRuntime(_mem); #if d_m3EnableStrace IM3FuncType ftype = ctx.function->funcType; FILE* out = stderr; char outbuff[1024]; char* outp = outbuff; char* oute = outbuff+1024; outp += snprintf(outp, oute-outp, "%s!%s(", ctx.function->import.moduleUtf8, ctx.function->import.fieldUtf8); const int nArgs = ftype->numArgs; const int nRets = ftype->numRets; u64 * args = sp + nRets; for (int i=0; itypes[nRets + i]; switch (type) { case c_m3Type_i32: outp += snprintf(outp, oute-outp, "%" PRIi32, *(i32*)(args+i)); break; case c_m3Type_i64: outp += snprintf(outp, oute-outp, "%" PRIi64, *(i64*)(args+i)); break; case c_m3Type_f32: outp += snprintf(outp, oute-outp, "%" PRIf32, *(f32*)(args+i)); break; case c_m3Type_f64: outp += snprintf(outp, oute-outp, "%" PRIf64, *(f64*)(args+i)); break; default: outp += snprintf(outp, oute-outp, "", type); break; } outp += snprintf(outp, oute-outp, (i < nArgs-1) ? ", " : ")"); } # if d_m3EnableStrace >= 2 outp += snprintf(outp, oute-outp, " { }"); # endif #endif // m3_Call uses runtime->stack to set-up initial exported function stack. // Reconfigure the stack to enable recursive invocations of m3_Call. // I.e. exported/table function can be called from an impoted function. void* stack_backup = runtime->stack; runtime->stack = sp; m3ret_t possible_trap = call (runtime, &ctx, sp, m3MemData(_mem)); runtime->stack = stack_backup; #if d_m3EnableStrace if (M3_UNLIKELY(possible_trap)) { d_m3TracePrint("%s -> %s", outbuff, (char*)possible_trap); } else { switch (GetSingleRetType(ftype)) { case c_m3Type_none: d_m3TracePrint("%s", outbuff); break; case c_m3Type_i32: d_m3TracePrint("%s = %" PRIi32, outbuff, *(i32*)sp); break; case c_m3Type_i64: d_m3TracePrint("%s = %" PRIi64, outbuff, *(i64*)sp); break; case c_m3Type_f32: d_m3TracePrint("%s = %" PRIf32, outbuff, *(f32*)sp); break; case c_m3Type_f64: d_m3TracePrint("%s = %" PRIf64, outbuff, *(f64*)sp); break; } } #endif if (M3_UNLIKELY(possible_trap)) { _mem = memory->mallocated; pushBacktraceFrame (); } forwardTrap (possible_trap); } d_m3Op (MemSize) { IM3Memory memory = m3MemInfo (_mem); _r0 = memory->numPages; nextOp (); } d_m3Op (MemGrow) { IM3Runtime runtime = m3MemRuntime(_mem); IM3Memory memory = & runtime->memory; u32 numPagesToGrow = (u32) _r0; _r0 = memory->numPages; if (M3_LIKELY(numPagesToGrow)) { u32 requiredPages = memory->numPages + numPagesToGrow; M3Result r = ResizeMemory (runtime, requiredPages); if (r) _r0 = -1; _mem = memory->mallocated; } nextOp (); } d_m3Op (MemCopy) { u32 size = (u32) _r0; u64 source = slot (u32); u64 destination = slot (u32); if (M3_LIKELY(destination + size <= _mem->length)) { if (M3_LIKELY(source + size <= _mem->length)) { u8 * dst = m3MemData (_mem) + destination; u8 * src = m3MemData (_mem) + source; memmove (dst, src, size); nextOp (); } else d_outOfBoundsMemOp (source, size); } else d_outOfBoundsMemOp (destination, size); } d_m3Op (MemFill) { u32 size = (u32) _r0; u32 byte = slot (u32); u64 destination = slot (u32); if (M3_LIKELY(destination + size <= _mem->length)) { u8 * mem8 = m3MemData (_mem) + destination; memset (mem8, (u8) byte, size); nextOp (); } else d_outOfBoundsMemOp (destination, size); } // it's a debate: should the compilation be trigger be the caller or callee page. // it's a much easier to put it in the caller pager. if it's in the callee, either the entire page // has be left dangling or it's just a stub that jumps to a newly acquired page. In Gestalt, I opted // for the stub approach. Stubbing makes it easier to dynamically free the compilation. You can also // do both. d_m3Op (Compile) { rewrite_op (op_Call); IM3Function function = immediate (IM3Function); m3ret_t result = m3Err_none; if (M3_UNLIKELY(not function->compiled)) // check to see if function was compiled since this operation was emitted. result = CompileFunction (function); if (not result) { // patch up compiled pc and call rewritten op_Call * ((void**) --_pc) = (void*) (function->compiled); --_pc; nextOpDirect (); } newTrap (result); } d_m3Op (Entry) { d_m3ClearRegisters d_m3TracePrepare IM3Function function = immediate (IM3Function); IM3Memory memory = m3MemInfo (_mem); #if d_m3SkipStackCheck if (true) #else if (M3_LIKELY ((void *) (_sp + function->maxStackSlots) < _mem->maxStack)) #endif { #if defined(DEBUG) function->hits++; #endif u8 * stack = (u8 *) ((m3slot_t *) _sp + function->numRetAndArgSlots); memset (stack, 0x0, function->numLocalBytes); stack += function->numLocalBytes; if (function->constants) { memcpy (stack, function->constants, function->numConstantBytes); } #if d_m3EnableStrace >= 2 d_m3TracePrint("%s %s {", m3_GetFunctionName(function), SPrintFunctionArgList (function, _sp + function->numRetSlots)); trace_rt->callDepth++; #endif m3ret_t r = nextOpImpl (); #if d_m3EnableStrace >= 2 trace_rt->callDepth--; if (r) { d_m3TracePrint("} !trap = %s", (char*)r); } else { int rettype = GetSingleRetType(function->funcType); if (rettype != c_m3Type_none) { char str [128] = { 0 }; SPrintArg (str, 127, _sp, rettype); d_m3TracePrint("} = %s", str); } else { d_m3TracePrint("}"); } } #endif if (M3_UNLIKELY(r)) { _mem = memory->mallocated; fillBacktraceFrame (); } forwardTrap (r); } else newTrap (m3Err_trapStackOverflow); } d_m3Op (Loop) { d_m3TracePrepare // regs are unused coming into a loop anyway // this reduces code size & stack usage d_m3ClearRegisters m3ret_t r; IM3Memory memory = m3MemInfo (_mem); do { #if d_m3EnableStrace >= 3 d_m3TracePrint("iter {"); trace_rt->callDepth++; #endif r = nextOpImpl (); #if d_m3EnableStrace >= 3 trace_rt->callDepth--; d_m3TracePrint("}"); #endif // linear memory pointer needs refreshed here because the block it's looping over // can potentially invoke the grow operation. _mem = memory->mallocated; } while (r == _pc); forwardTrap (r); } d_m3Op (Branch) { jumpOp (* _pc); } d_m3Op (If_r) { i32 condition = (i32) _r0; pc_t elsePC = immediate (pc_t); if (condition) nextOp (); else jumpOp (elsePC); } d_m3Op (If_s) { i32 condition = slot (i32); pc_t elsePC = immediate (pc_t); if (condition) nextOp (); else jumpOp (elsePC); } d_m3Op (BranchTable) { u32 branchIndex = slot (u32); // branch index is always in a slot u32 numTargets = immediate (u32); pc_t * branches = (pc_t *) _pc; if (branchIndex > numTargets) branchIndex = numTargets; // the default index jumpOp (branches [branchIndex]); } #define d_m3SetRegisterSetSlot(TYPE, REG) \ d_m3Op (SetRegister_##TYPE) \ { \ REG = slot (TYPE); \ nextOp (); \ } \ \ d_m3Op (SetSlot_##TYPE) \ { \ slot (TYPE) = (TYPE) REG; \ nextOp (); \ } \ \ d_m3Op (PreserveSetSlot_##TYPE) \ { \ TYPE * stack = slot_ptr (TYPE); \ TYPE * preserve = slot_ptr (TYPE); \ \ * preserve = * stack; \ * stack = (TYPE) REG; \ \ nextOp (); \ } d_m3SetRegisterSetSlot (i32, _r0) d_m3SetRegisterSetSlot (i64, _r0) #if d_m3HasFloat d_m3SetRegisterSetSlot (f32, _fp0) d_m3SetRegisterSetSlot (f64, _fp0) #endif d_m3Op (CopySlot_32) { u32 * dst = slot_ptr (u32); u32 * src = slot_ptr (u32); * dst = * src; nextOp (); } d_m3Op (PreserveCopySlot_32) { u32 * dest = slot_ptr (u32); u32 * src = slot_ptr (u32); u32 * preserve = slot_ptr (u32); * preserve = * dest; * dest = * src; nextOp (); } d_m3Op (CopySlot_64) { u64 * dst = slot_ptr (u64); u64 * src = slot_ptr (u64); * dst = * src; // printf ("copy: %p <- %" PRIi64 " <- %p\n", dst, * dst, src); nextOp (); } d_m3Op (PreserveCopySlot_64) { u64 * dest = slot_ptr (u64); u64 * src = slot_ptr (u64); u64 * preserve = slot_ptr (u64); * preserve = * dest; * dest = * src; nextOp (); } #if d_m3EnableOpTracing //-------------------------------------------------------------------------------------------------------- d_m3Op (DumpStack) { u32 opcodeIndex = immediate (u32); u32 stackHeight = immediate (u32); IM3Function function = immediate (IM3Function); cstr_t funcName = (function) ? m3_GetFunctionName(function) : ""; printf (" %4d ", opcodeIndex); printf (" %-25s r0: 0x%016" PRIx64 " i:%" PRIi64 " u:%" PRIu64 "\n", funcName, _r0, _r0, _r0); #if d_m3HasFloat printf (" fp0: %" PRIf64 "\n", _fp0); #endif m3stack_t sp = _sp; for (u32 i = 0; i < stackHeight; ++i) { cstr_t kind = ""; printf ("%p %5s %2d: 0x%" PRIx64 " i:%" PRIi64 "\n", sp, kind, i, (u64) *(sp), (i64) *(sp)); ++sp; } printf ("---------------------------------------------------------------------------------------------------------\n"); nextOpDirect(); } #endif #define d_m3Select_i(TYPE, REG) \ d_m3Op (Select_##TYPE##_rss) \ { \ i32 condition = (i32) _r0; \ \ TYPE operand2 = slot (TYPE); \ TYPE operand1 = slot (TYPE); \ \ REG = (condition) ? operand1 : operand2; \ \ nextOp (); \ } \ \ d_m3Op (Select_##TYPE##_srs) \ { \ i32 condition = slot (i32); \ \ TYPE operand2 = (TYPE) REG; \ TYPE operand1 = slot (TYPE); \ \ REG = (condition) ? operand1 : operand2; \ \ nextOp (); \ } \ \ d_m3Op (Select_##TYPE##_ssr) \ { \ i32 condition = slot (i32); \ \ TYPE operand2 = slot (TYPE); \ TYPE operand1 = (TYPE) REG; \ \ REG = (condition) ? operand1 : operand2; \ \ nextOp (); \ } \ \ d_m3Op (Select_##TYPE##_sss) \ { \ i32 condition = slot (i32); \ \ TYPE operand2 = slot (TYPE); \ TYPE operand1 = slot (TYPE); \ \ REG = (condition) ? operand1 : operand2; \ \ nextOp (); \ } d_m3Select_i (i32, _r0) d_m3Select_i (i64, _r0) #define d_m3Select_f(TYPE, REG, LABEL, SELECTOR) \ d_m3Op (Select_##TYPE##_##LABEL##ss) \ { \ i32 condition = (i32) SELECTOR; \ \ TYPE operand2 = slot (TYPE); \ TYPE operand1 = slot (TYPE); \ \ REG = (condition) ? operand1 : operand2; \ \ nextOp (); \ } \ \ d_m3Op (Select_##TYPE##_##LABEL##rs) \ { \ i32 condition = (i32) SELECTOR; \ \ TYPE operand2 = (TYPE) REG; \ TYPE operand1 = slot (TYPE); \ \ REG = (condition) ? operand1 : operand2; \ \ nextOp (); \ } \ \ d_m3Op (Select_##TYPE##_##LABEL##sr) \ { \ i32 condition = (i32) SELECTOR; \ \ TYPE operand2 = slot (TYPE); \ TYPE operand1 = (TYPE) REG; \ \ REG = (condition) ? operand1 : operand2; \ \ nextOp (); \ } #if d_m3HasFloat d_m3Select_f (f32, _fp0, r, _r0) d_m3Select_f (f32, _fp0, s, slot (i32)) d_m3Select_f (f64, _fp0, r, _r0) d_m3Select_f (f64, _fp0, s, slot (i32)) #endif d_m3Op (Return) { m3StackCheck(); return m3Err_none; } d_m3Op (BranchIf_r) { i32 condition = (i32) _r0; pc_t branch = immediate (pc_t); if (condition) { jumpOp (branch); } else nextOp (); } d_m3Op (BranchIf_s) { i32 condition = slot (i32); pc_t branch = immediate (pc_t); if (condition) { jumpOp (branch); } else nextOp (); } d_m3Op (BranchIfPrologue_r) { i32 condition = (i32) _r0; pc_t branch = immediate (pc_t); if (condition) { // this is the "prologue" that ends with // a plain branch to the actual target nextOp (); } else jumpOp (branch); // jump over the prologue } d_m3Op (BranchIfPrologue_s) { i32 condition = slot (i32); pc_t branch = immediate (pc_t); if (condition) { nextOp (); } else jumpOp (branch); } d_m3Op (ContinueLoop) { m3StackCheck(); // TODO: this is where execution can "escape" the M3 code and callback to the client / fiber switch // OR it can go in the Loop operation. I think it's best to do here. adding code to the loop operation // has the potential to increase its native-stack usage. (don't forget ContinueLoopIf too.) void * loopId = immediate (void *); return loopId; } d_m3Op (ContinueLoopIf) { i32 condition = (i32) _r0; void * loopId = immediate (void *); if (condition) { return loopId; } else nextOp (); } d_m3Op (Const32) { u32 value = * (u32 *)_pc++; slot (u32) = value; nextOp (); } d_m3Op (Const64) { u64 value = * (u64 *)_pc; _pc += (M3_SIZEOF_PTR == 4) ? 2 : 1; slot (u64) = value; nextOp (); } d_m3Op (Unsupported) { newTrap ("unsupported instruction executed"); } d_m3Op (Unreachable) { m3StackCheck(); newTrap (m3Err_trapUnreachable); } d_m3Op (End) { m3StackCheck(); return m3Err_none; } d_m3Op (SetGlobal_s32) { u32 * global = immediate (u32 *); * global = slot (u32); nextOp (); } d_m3Op (SetGlobal_s64) { u64 * global = immediate (u64 *); * global = slot (u64); nextOp (); } #if d_m3HasFloat d_m3Op (SetGlobal_f32) { f32 * global = immediate (f32 *); * global = _fp0; nextOp (); } d_m3Op (SetGlobal_f64) { f64 * global = immediate (f64 *); * global = _fp0; nextOp (); } #endif #if d_m3SkipMemoryBoundsCheck # define m3MemCheck(x) true #else # define m3MemCheck(x) M3_LIKELY(x) #endif // memcpy here is to support non-aligned access on some platforms. #define d_m3Load(REG,DEST_TYPE,SRC_TYPE) \ d_m3Op(DEST_TYPE##_Load_##SRC_TYPE##_r) \ { \ d_m3TracePrepare \ u32 offset = immediate (u32); \ u64 operand = (u32) _r0; \ operand += offset; \ \ if (m3MemCheck( \ operand + sizeof (SRC_TYPE) <= _mem->length \ )) { \ u8* src8 = m3MemData(_mem) + operand; \ SRC_TYPE value; \ memcpy(&value, src8, sizeof(value)); \ M3_BSWAP_##SRC_TYPE(value); \ REG = (DEST_TYPE)value; \ d_m3TraceLoad(DEST_TYPE, operand, REG); \ nextOp (); \ } else d_outOfBounds; \ } \ d_m3Op(DEST_TYPE##_Load_##SRC_TYPE##_s) \ { \ d_m3TracePrepare \ u64 operand = slot (u32); \ u32 offset = immediate (u32); \ operand += offset; \ \ if (m3MemCheck( \ operand + sizeof (SRC_TYPE) <= _mem->length \ )) { \ u8* src8 = m3MemData(_mem) + operand; \ SRC_TYPE value; \ memcpy(&value, src8, sizeof(value)); \ M3_BSWAP_##SRC_TYPE(value); \ REG = (DEST_TYPE)value; \ d_m3TraceLoad(DEST_TYPE, operand, REG); \ nextOp (); \ } else d_outOfBounds; \ } // printf ("get: %d -> %d\n", operand + offset, (i64) REG); #define d_m3Load_i(DEST_TYPE, SRC_TYPE) d_m3Load(_r0, DEST_TYPE, SRC_TYPE) #define d_m3Load_f(DEST_TYPE, SRC_TYPE) d_m3Load(_fp0, DEST_TYPE, SRC_TYPE) #if d_m3HasFloat d_m3Load_f (f32, f32); d_m3Load_f (f64, f64); #endif d_m3Load_i (i32, i8); d_m3Load_i (i32, u8); d_m3Load_i (i32, i16); d_m3Load_i (i32, u16); d_m3Load_i (i32, i32); d_m3Load_i (i64, i8); d_m3Load_i (i64, u8); d_m3Load_i (i64, i16); d_m3Load_i (i64, u16); d_m3Load_i (i64, i32); d_m3Load_i (i64, u32); d_m3Load_i (i64, i64); #define d_m3Store(REG, SRC_TYPE, DEST_TYPE) \ d_m3Op (SRC_TYPE##_Store_##DEST_TYPE##_rs) \ { \ d_m3TracePrepare \ u64 operand = slot (u32); \ u32 offset = immediate (u32); \ operand += offset; \ \ if (m3MemCheck( \ operand + sizeof (DEST_TYPE) <= _mem->length \ )) { \ d_m3TraceStore(SRC_TYPE, operand, REG); \ u8* mem8 = m3MemData(_mem) + operand; \ DEST_TYPE val = (DEST_TYPE) REG; \ M3_BSWAP_##DEST_TYPE(val); \ memcpy(mem8, &val, sizeof(val)); \ nextOp (); \ } else d_outOfBounds; \ } \ d_m3Op (SRC_TYPE##_Store_##DEST_TYPE##_sr) \ { \ d_m3TracePrepare \ const SRC_TYPE value = slot (SRC_TYPE); \ u64 operand = (u32) _r0; \ u32 offset = immediate (u32); \ operand += offset; \ \ if (m3MemCheck( \ operand + sizeof (DEST_TYPE) <= _mem->length \ )) { \ d_m3TraceStore(SRC_TYPE, operand, value); \ u8* mem8 = m3MemData(_mem) + operand; \ DEST_TYPE val = (DEST_TYPE) value; \ M3_BSWAP_##DEST_TYPE(val); \ memcpy(mem8, &val, sizeof(val)); \ nextOp (); \ } else d_outOfBounds; \ } \ d_m3Op (SRC_TYPE##_Store_##DEST_TYPE##_ss) \ { \ d_m3TracePrepare \ const SRC_TYPE value = slot (SRC_TYPE); \ u64 operand = slot (u32); \ u32 offset = immediate (u32); \ operand += offset; \ \ if (m3MemCheck( \ operand + sizeof (DEST_TYPE) <= _mem->length \ )) { \ d_m3TraceStore(SRC_TYPE, operand, value); \ u8* mem8 = m3MemData(_mem) + operand; \ DEST_TYPE val = (DEST_TYPE) value; \ M3_BSWAP_##DEST_TYPE(val); \ memcpy(mem8, &val, sizeof(val)); \ nextOp (); \ } else d_outOfBounds; \ } // both operands can be in regs when storing a float #define d_m3StoreFp(REG, TYPE) \ d_m3Op (TYPE##_Store_##TYPE##_rr) \ { \ d_m3TracePrepare \ u64 operand = (u32) _r0; \ u32 offset = immediate (u32); \ operand += offset; \ \ if (m3MemCheck( \ operand + sizeof (TYPE) <= _mem->length \ )) { \ d_m3TraceStore(TYPE, operand, REG); \ u8* mem8 = m3MemData(_mem) + operand; \ TYPE val = (TYPE) REG; \ M3_BSWAP_##TYPE(val); \ memcpy(mem8, &val, sizeof(val)); \ nextOp (); \ } else d_outOfBounds; \ } #define d_m3Store_i(SRC_TYPE, DEST_TYPE) d_m3Store(_r0, SRC_TYPE, DEST_TYPE) #define d_m3Store_f(SRC_TYPE, DEST_TYPE) d_m3Store(_fp0, SRC_TYPE, DEST_TYPE) d_m3StoreFp (_fp0, SRC_TYPE); #if d_m3HasFloat d_m3Store_f (f32, f32) d_m3Store_f (f64, f64) #endif d_m3Store_i (i32, u8) d_m3Store_i (i32, i16) d_m3Store_i (i32, i32) d_m3Store_i (i64, u8) d_m3Store_i (i64, i16) d_m3Store_i (i64, i32) d_m3Store_i (i64, i64) #undef m3MemCheck //--------------------------------------------------------------------------------------------------------------------- // debug/profiling //--------------------------------------------------------------------------------------------------------------------- #if d_m3EnableOpTracing d_m3RetSig debugOp (d_m3OpSig, cstr_t i_opcode) { char name [100]; strcpy (name, strstr (i_opcode, "op_") + 3); char * bracket = strstr (name, "("); if (bracket) { *bracket = 0; } puts (name); nextOpDirect(); } # endif # if d_m3EnableOpProfiling d_m3RetSig profileOp (d_m3OpSig, cstr_t i_operationName) { ProfileHit (i_operationName); nextOpDirect(); } # endif d_m3EndExternC #endif // m3_exec_h