This file is the short summary of the API changes: 01.11.2023 - Non-backward compatible The SLJIT_ARG_TYPE_VOID definition is changed to SLJIT_ARG_TYPE_RET_VOID to improve Windows compatibility. 05.9.2023 - Non-backward compatible Turn SLJIT_IMM from a flag to a single value. 10.8.2023 - Non-backward compatible Rename SLJIT_INT_REGISTER to SLJIT_GP_REGISTER. 01.08.2023 - Non-backward compatible A type argument is added to sljit_get_register_index and sljit_get_float_register_index is removed. 19.07.2023 - Non-backward compatible SLJIT_MEM_UNALIGNED_16/32 options are renamed to SLJIT_MEM_ALIGNED_16/32 and a type argument is added to sljit_get_float_register_index. 16.02.2022 - Non-backward compatible The sljit_emit_cmov operation is replaced by sljit_emit_select. 11.02.2022 - Non-backward compatible All floating point comparisons are supported, sljit_cmp_info return value is changed. 02.02.2022 - Backward compatible All SLJIT_SET_* constants are even numbers. 27.01.2022 - Non-backward compatible The arguments of sljit_emit_shift_into are changed. 17.12.2022 - Non-backward compatible Replace sljit_emit_fast_enter and sljit_get_return_address with sljit_emit_op_dst. 13.12.2022 - Non-backward compatible Replace SLJIT_NOT with SLJIT_XOR. 10.11.2022 - Non-backward compatible Extract the pre/post update operations from sljit_emit_mem to sljit_emit_mem_update and sljit_emit_fmem to sljit_emit_fmem_update. 04.11.2022 - Non-backward compatible The SLJIT_32 flag is combined with the type argument of cmov, not the dst_reg. 16.06.2022 - Non-backward compatible Remove SLJIT_ENTER_CDECL and SLJIT_CALL_CDECL. The default calling mode is cdecl now. 21.04.2022 - Non-backward compatible Floating point comparison types are renamed. 01.03.2022 - Non-backward compatible Remove SLJIT_NEG. Instead subtraction from immedate 0 is preferred. 31.01.2022 - Non-backward compatible The SLJIT_CURRENT_FLAGS_ADD_SUB option is split into SLJIT_CURRENT_FLAGS_ADD and SLJIT_CURRENT_FLAGS_SUB. 27.02.2022 - Non-backward compatible The SLJIT_F64_ALIGNMENT option is removed. 17.02.2022 - Non-backward compatible Many floating point operations may destroy flags. 06.02.2022 - Non-backward compatible The SLJIT_FUNC_OFFSET macro is renamed to SLJIT_FUNC_ADDR. Furthermore a new SLJIT_FUNC_UADDR macro is added which returns with an unsigned address. 01.02.2022 - Non-backward compatible Rework function argument list descriptor macros used by sljit_emit_enter, sljit_set_context, sljit_emit_call, and sljit_emit_icall functions. 25.01.2022 - Non-backward compatible Change SLJIT_I32_OP and SLJIT_F32_OP to SLJIT_32. 24.01.2022 - Non-backward compatible The SLJIT_UNUSED value is replaced by sljit_emit_op2u and sljit_emit_return_void functions. 27.05.2021 - Non-backward compatible The comparison types with the 32 suffix are removed from the project. The sljit_set_current_flags has a new flag which must be set when the flags are set by a 32 bit operation. 04.05.2021 - Non-backward compatible The mul overflow comparison type is removed from the project and the normal overflow type should be used instead. 28.04.2021 - Non-backward compatible The current_flags argument of sljit_set_current_flags must provide information about the instructions which set the CPU status flags. 16.08.2020 - Non-backward compatible A second parameter has been added to sljit_create_compiler() and sljit_free_code() to pass some data to the executable allocator functions. 24.01.2020 - Non-backward compatible The SLJIT_MOV instructions does not support SLJIT_UNDEFINED as destination. New prefetch instructions has been added instead. 20.01.2019 - Non-backward compatible The check_sljit_emit_fast_return function is removed, and this operation is available through check_sljit_emit_op_src. 16.01.2019 - Backward compatible A new opcode (SLJIT_ENDBR) is added to support Intel Control-flow Enforcement Technology (CET). 08.01.2018 - Non-backward compatible Fields of sljit_stack are renamed to fit a top-down stack better. 02.01.2018 - Non-backward compatible Immediate source argument has not been supported for NOT, NEG, CLZ, and fast_return instructions anymore. No CPU supports immedate arguments for these opcodes. 26.12.2017 - Non-backward compatible The MOVU opcodes are removed because the emulation is inefficient. The sljit_emit_mem() operation is added instead. 18.10.2017 - Non-backward compatible The SLJIT_CALL0 - SLJIT_CALL3 jump types are replaced by sljit_emit_call and sljit_emit_icall function calls. These functions allows declaring the argument types. 06.05.2017 - Non-backward compatible Src argument is removed from sljit_emit_op_flags. 24.04.2017 - Non-backward compatible The sljit_is_fpu_available function is replaced by sljit_has_cpu_feature. 20.04.2017 - Non-backward compatible x86 specific cmov is changed to a general function 27.03.2017 - Non-backward compatible JIT stack is changed from bottom-up to top-town. 15.01.2017 - Non-backward compatible Move with update may modifiy flags, the base register can only be used once and [reg+reg< 0 is not supported anymore. 12.01.2017 - Non-backward compatible Introducing a new flag mechanism which provides better compatibility with CPUs without flags. Only two flags remain: zero and variable. The current type of the variable flag is specified by the arithmetic operator. The SLJIT_KEEP_FLAGS is removed. 29.02.2016 - Non-backward compatible Several types and instructions are renamed to improve readability. In general byte, half, and int are renamed to 8, 16, and 32. Floating point types are also renamed from d and s to f64 and f32. [s|u]b -> [s|u]8 (8 bit values) [s|u]h -> [s|u]16 (16 bit values) [s|u]i -> [s|u]32 (32 bit values) d -> f64 (64 bit floating point value) s -> f32 (32 bit floating point value) 18.05.2015 - Non-backward compatible SLJIT_[I|]L[U|S]DIV is renamed to SLJIT_[I|][U|S]DIVMOD 29.09.2014 - Non-backward compatible The sljit_create_compiler, sljit_allocate_stack, and sljit_free_stack functions have an allocator_data argument now. 19.09.2014 - Non-backward compatible Using I, D, S prefixes in conditional and floating point operations. And an L prefix to long multiplication and division (op0 opcodes). 11.08.2014 - Non-backward compatible A currently unused options parameter is added to sljit_emit_enter and sljit_set_context. 06.07.2014 - Non-backward compatible SCRATCH registers are renamed to Rx and SAVED registers are renamed to Sx. See the explanation of these registers in sljitLir.h. 31.05.2014 - Non-backward compatible SLJIT_TEMPORARY_EREGx registers were not renamed to SLJIT_SCRATCH_EREGx when the change was done on 08.11.2012 05.03.2014 - Backward compatible The sljit_set_target now supports those jumps, which does not created with SLJIT_REWRITABLE_JUMP flag. Reason: sljit_emit_ijump does not support conditional jumps. 03.03.2014 - Non-backward compatible SLJIT_MOV_UI cannot be combined with SLJIT_INT_OP. Reason: SLJIT_INT_OP flag is not recommended to use directly, and SLJIT_IMOV has no sign bit. 29.01.2014 - Backward compatible Bits assigned to SLJIT_MEM and SLJIT_IMM flags are changed. Reason: the most common cases are fits into one byte now, and more registers can be supported in the future. 08.11.2012 - Non-backward compatible SLJIT_TEMPORARY_REGx registers are renamed to SLJIT_SCRATCH_REGx. 07.11.2012 - Non-backward compatible sljit_emit_cond_value is renamed to sljit_emit_op_flags. An extra source argument is added which will be used in the future. 05.11.2012 - Backward compatible sljit_emit_cond_value now supports SLJIT_AND and SLJIT_INT_OP flags, which makes this function complete. 01.11.2012 - Non-backward compatible SLJIT_F* opcodes are renamed to SLJIT_*D to show that they are double precision operators. Furthermore SLJIT_*S single precision opcodes are added. 01.11.2012 - Non-backward compatible Register arguments of operations with SLJIT_INT_OP flag must be computed by another operation with SLJIT_INT_OP flag. The same way as SLJIT_SINGLE_OP flag works with floating point numbers. See the description of SLJIT_INT_OP. 01.11.2012 - Backward compatible All operations whose support the SLJIT_INT_OP flag, have an alternate name now, which includes the SLJIT_INT_OP. These names starting with I. 31.10.2012 - Non-backward compatible Renaming sljit_w to sljit_sw, sljit_i to sljit_si, sljit_h to sljit_sh, and sljit_b to sljit_sb. Reason: their sign bit is part of the type now. 20.10.2012 - Non-backward compatible Renaming SLJIT_C_FLOAT_NAN to SLJIT_C_FLOAT_UNORDERED. Reason: all architectures call these unordered comparions.