mirror of
https://github.com/mirror/tinycc.git
synced 2024-12-28 04:00:06 +08:00
3b84e61ead
There seems nothing wrong. With
int t1 = 176401255;
float f = 0.25;
int t2 = t1 * f; // 176401255 * 0.25 = 44100313.75
according to the arithmetic conversion rules, the number
176401255 needs to be converted to float, and the compiler
can choose either the nearest higher or nearest lower
representable number "in an implementation-defined manner".
Which may be 176401248 or 176401264. So as result both
44100312 and 44100313 are correct.
This reverts commit 664c19ad5e.
349 lines
11 KiB
C
349 lines
11 KiB
C
/* keywords */
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DEF(TOK_INT, "int")
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DEF(TOK_VOID, "void")
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DEF(TOK_CHAR, "char")
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DEF(TOK_IF, "if")
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DEF(TOK_ELSE, "else")
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DEF(TOK_WHILE, "while")
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DEF(TOK_BREAK, "break")
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DEF(TOK_RETURN, "return")
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DEF(TOK_FOR, "for")
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DEF(TOK_EXTERN, "extern")
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DEF(TOK_STATIC, "static")
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DEF(TOK_UNSIGNED, "unsigned")
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DEF(TOK_GOTO, "goto")
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DEF(TOK_DO, "do")
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DEF(TOK_CONTINUE, "continue")
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DEF(TOK_SWITCH, "switch")
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DEF(TOK_CASE, "case")
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DEF(TOK_CONST1, "const")
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DEF(TOK_CONST2, "__const") /* gcc keyword */
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DEF(TOK_CONST3, "__const__") /* gcc keyword */
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DEF(TOK_VOLATILE1, "volatile")
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DEF(TOK_VOLATILE2, "__volatile") /* gcc keyword */
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DEF(TOK_VOLATILE3, "__volatile__") /* gcc keyword */
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DEF(TOK_LONG, "long")
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DEF(TOK_REGISTER, "register")
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DEF(TOK_SIGNED1, "signed")
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DEF(TOK_SIGNED2, "__signed") /* gcc keyword */
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DEF(TOK_SIGNED3, "__signed__") /* gcc keyword */
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DEF(TOK_AUTO, "auto")
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DEF(TOK_INLINE1, "inline")
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DEF(TOK_INLINE2, "__inline") /* gcc keyword */
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DEF(TOK_INLINE3, "__inline__") /* gcc keyword */
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DEF(TOK_RESTRICT1, "restrict")
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DEF(TOK_RESTRICT2, "__restrict")
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DEF(TOK_RESTRICT3, "__restrict__")
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DEF(TOK_EXTENSION, "__extension__") /* gcc keyword */
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DEF(TOK_FLOAT, "float")
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DEF(TOK_DOUBLE, "double")
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DEF(TOK_BOOL, "_Bool")
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DEF(TOK_SHORT, "short")
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DEF(TOK_STRUCT, "struct")
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DEF(TOK_UNION, "union")
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DEF(TOK_TYPEDEF, "typedef")
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DEF(TOK_DEFAULT, "default")
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DEF(TOK_ENUM, "enum")
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DEF(TOK_SIZEOF, "sizeof")
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DEF(TOK_ATTRIBUTE1, "__attribute")
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DEF(TOK_ATTRIBUTE2, "__attribute__")
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DEF(TOK_ALIGNOF1, "__alignof")
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DEF(TOK_ALIGNOF2, "__alignof__")
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DEF(TOK_TYPEOF1, "typeof")
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DEF(TOK_TYPEOF2, "__typeof")
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DEF(TOK_TYPEOF3, "__typeof__")
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DEF(TOK_LABEL, "__label__")
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DEF(TOK_ASM1, "asm")
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DEF(TOK_ASM2, "__asm")
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DEF(TOK_ASM3, "__asm__")
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#ifdef TCC_TARGET_ARM64
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DEF(TOK_UINT128, "__uint128_t")
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#endif
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/*********************************************************************/
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/* the following are not keywords. They are included to ease parsing */
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/* preprocessor only */
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DEF(TOK_DEFINE, "define")
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DEF(TOK_INCLUDE, "include")
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DEF(TOK_INCLUDE_NEXT, "include_next")
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DEF(TOK_IFDEF, "ifdef")
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DEF(TOK_IFNDEF, "ifndef")
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DEF(TOK_ELIF, "elif")
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DEF(TOK_ENDIF, "endif")
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DEF(TOK_DEFINED, "defined")
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DEF(TOK_UNDEF, "undef")
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DEF(TOK_ERROR, "error")
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DEF(TOK_WARNING, "warning")
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DEF(TOK_LINE, "line")
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DEF(TOK_PRAGMA, "pragma")
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DEF(TOK___LINE__, "__LINE__")
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DEF(TOK___FILE__, "__FILE__")
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DEF(TOK___DATE__, "__DATE__")
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DEF(TOK___TIME__, "__TIME__")
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DEF(TOK___FUNCTION__, "__FUNCTION__")
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DEF(TOK___VA_ARGS__, "__VA_ARGS__")
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/* special identifiers */
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DEF(TOK___FUNC__, "__func__")
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/* special floating point values */
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DEF(TOK___NAN__, "__nan__")
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DEF(TOK___SNAN__, "__snan__")
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DEF(TOK___INF__, "__inf__")
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/* attribute identifiers */
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/* XXX: handle all tokens generically since speed is not critical */
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DEF(TOK_SECTION1, "section")
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DEF(TOK_SECTION2, "__section__")
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DEF(TOK_ALIGNED1, "aligned")
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DEF(TOK_ALIGNED2, "__aligned__")
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DEF(TOK_PACKED1, "packed")
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DEF(TOK_PACKED2, "__packed__")
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DEF(TOK_WEAK1, "weak")
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DEF(TOK_WEAK2, "__weak__")
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DEF(TOK_ALIAS1, "alias")
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DEF(TOK_ALIAS2, "__alias__")
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DEF(TOK_UNUSED1, "unused")
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DEF(TOK_UNUSED2, "__unused__")
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DEF(TOK_CDECL1, "cdecl")
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DEF(TOK_CDECL2, "__cdecl")
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DEF(TOK_CDECL3, "__cdecl__")
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DEF(TOK_STDCALL1, "stdcall")
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DEF(TOK_STDCALL2, "__stdcall")
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DEF(TOK_STDCALL3, "__stdcall__")
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DEF(TOK_FASTCALL1, "fastcall")
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DEF(TOK_FASTCALL2, "__fastcall")
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DEF(TOK_FASTCALL3, "__fastcall__")
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DEF(TOK_MODE, "__mode__")
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DEF(TOK_MODE_QI, "__QI__")
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DEF(TOK_MODE_DI, "__DI__")
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DEF(TOK_MODE_HI, "__HI__")
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DEF(TOK_MODE_SI, "__SI__")
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DEF(TOK_MODE_word, "__word__")
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DEF(TOK_DLLEXPORT, "dllexport")
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DEF(TOK_DLLIMPORT, "dllimport")
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DEF(TOK_NORETURN1, "noreturn")
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DEF(TOK_NORETURN2, "__noreturn__")
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DEF(TOK_VISIBILITY1, "visibility")
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DEF(TOK_VISIBILITY2, "__visibility__")
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DEF(TOK_builtin_types_compatible_p, "__builtin_types_compatible_p")
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DEF(TOK_builtin_choose_expr, "__builtin_choose_expr")
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DEF(TOK_builtin_constant_p, "__builtin_constant_p")
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DEF(TOK_builtin_frame_address, "__builtin_frame_address")
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DEF(TOK_builtin_return_address, "__builtin_return_address")
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DEF(TOK_builtin_expect, "__builtin_expect")
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#ifdef TCC_TARGET_X86_64
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#ifdef TCC_TARGET_PE
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DEF(TOK_builtin_va_start, "__builtin_va_start")
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#else
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DEF(TOK_builtin_va_arg_types, "__builtin_va_arg_types")
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#endif
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#endif
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DEF(TOK_REGPARM1, "regparm")
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DEF(TOK_REGPARM2, "__regparm__")
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#ifdef TCC_TARGET_ARM64
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DEF(TOK___va_start, "__va_start")
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DEF(TOK___va_arg, "__va_arg")
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#endif
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/* pragma */
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DEF(TOK_pack, "pack")
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#if !defined(TCC_TARGET_I386) && !defined(TCC_TARGET_X86_64)
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/* already defined for assembler */
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DEF(TOK_ASM_push, "push")
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DEF(TOK_ASM_pop, "pop")
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#endif
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DEF(TOK_comment, "comment")
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DEF(TOK_lib, "lib")
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DEF(TOK_push_macro, "push_macro")
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DEF(TOK_pop_macro, "pop_macro")
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DEF(TOK_once, "once")
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/* builtin functions or variables */
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#ifndef TCC_ARM_EABI
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DEF(TOK_memcpy, "memcpy")
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DEF(TOK_memmove, "memmove")
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DEF(TOK_memset, "memset")
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DEF(TOK___divdi3, "__divdi3")
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DEF(TOK___moddi3, "__moddi3")
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DEF(TOK___udivdi3, "__udivdi3")
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DEF(TOK___umoddi3, "__umoddi3")
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DEF(TOK___ashrdi3, "__ashrdi3")
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DEF(TOK___lshrdi3, "__lshrdi3")
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DEF(TOK___ashldi3, "__ashldi3")
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DEF(TOK___floatundisf, "__floatundisf")
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DEF(TOK___floatundidf, "__floatundidf")
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# ifndef TCC_ARM_VFP
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DEF(TOK___floatundixf, "__floatundixf")
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DEF(TOK___fixunsxfdi, "__fixunsxfdi")
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# endif
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DEF(TOK___fixunssfdi, "__fixunssfdi")
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DEF(TOK___fixunsdfdi, "__fixunsdfdi")
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#endif
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#if defined TCC_TARGET_ARM
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# ifdef TCC_ARM_EABI
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DEF(TOK_memcpy, "__aeabi_memcpy")
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DEF(TOK_memcpy4, "__aeabi_memcpy4")
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DEF(TOK_memcpy8, "__aeabi_memcpy8")
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DEF(TOK_memmove, "__aeabi_memmove")
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DEF(TOK_memset, "__aeabi_memset")
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DEF(TOK___aeabi_ldivmod, "__aeabi_ldivmod")
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DEF(TOK___aeabi_uldivmod, "__aeabi_uldivmod")
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DEF(TOK___aeabi_idivmod, "__aeabi_idivmod")
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DEF(TOK___aeabi_uidivmod, "__aeabi_uidivmod")
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DEF(TOK___divsi3, "__aeabi_idiv")
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DEF(TOK___udivsi3, "__aeabi_uidiv")
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DEF(TOK___floatdisf, "__aeabi_l2f")
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DEF(TOK___floatdidf, "__aeabi_l2d")
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DEF(TOK___fixsfdi, "__aeabi_f2lz")
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DEF(TOK___fixdfdi, "__aeabi_d2lz")
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DEF(TOK___ashrdi3, "__aeabi_lasr")
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DEF(TOK___lshrdi3, "__aeabi_llsr")
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DEF(TOK___ashldi3, "__aeabi_llsl")
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DEF(TOK___floatundisf, "__aeabi_ul2f")
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DEF(TOK___floatundidf, "__aeabi_ul2d")
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DEF(TOK___fixunssfdi, "__aeabi_f2ulz")
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DEF(TOK___fixunsdfdi, "__aeabi_d2ulz")
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# else
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DEF(TOK___modsi3, "__modsi3")
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DEF(TOK___umodsi3, "__umodsi3")
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DEF(TOK___divsi3, "__divsi3")
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DEF(TOK___udivsi3, "__udivsi3")
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DEF(TOK___floatdisf, "__floatdisf")
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DEF(TOK___floatdidf, "__floatdidf")
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# ifndef TCC_ARM_VFP
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DEF(TOK___floatdixf, "__floatdixf")
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DEF(TOK___fixunssfsi, "__fixunssfsi")
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DEF(TOK___fixunsdfsi, "__fixunsdfsi")
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DEF(TOK___fixunsxfsi, "__fixunsxfsi")
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DEF(TOK___fixxfdi, "__fixxfdi")
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# endif
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DEF(TOK___fixsfdi, "__fixsfdi")
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DEF(TOK___fixdfdi, "__fixdfdi")
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# endif
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#endif
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#if defined TCC_TARGET_C67
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DEF(TOK__divi, "_divi")
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DEF(TOK__divu, "_divu")
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DEF(TOK__divf, "_divf")
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DEF(TOK__divd, "_divd")
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DEF(TOK__remi, "_remi")
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DEF(TOK__remu, "_remu")
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#endif
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#if defined TCC_TARGET_I386
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DEF(TOK___fixsfdi, "__fixsfdi")
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DEF(TOK___fixdfdi, "__fixdfdi")
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DEF(TOK___fixxfdi, "__fixxfdi")
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#endif
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#if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
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DEF(TOK_alloca, "alloca")
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#endif
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#if defined TCC_TARGET_PE
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DEF(TOK___chkstk, "__chkstk")
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#endif
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#ifdef TCC_TARGET_ARM64
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DEF(TOK___arm64_clear_cache, "__arm64_clear_cache")
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DEF(TOK___addtf3, "__addtf3")
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DEF(TOK___subtf3, "__subtf3")
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DEF(TOK___multf3, "__multf3")
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DEF(TOK___divtf3, "__divtf3")
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DEF(TOK___extendsftf2, "__extendsftf2")
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DEF(TOK___extenddftf2, "__extenddftf2")
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DEF(TOK___trunctfsf2, "__trunctfsf2")
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DEF(TOK___trunctfdf2, "__trunctfdf2")
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DEF(TOK___fixtfsi, "__fixtfsi")
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DEF(TOK___fixtfdi, "__fixtfdi")
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DEF(TOK___fixunstfsi, "__fixunstfsi")
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DEF(TOK___fixunstfdi, "__fixunstfdi")
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DEF(TOK___floatsitf, "__floatsitf")
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DEF(TOK___floatditf, "__floatditf")
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DEF(TOK___floatunsitf, "__floatunsitf")
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DEF(TOK___floatunditf, "__floatunditf")
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DEF(TOK___eqtf2, "__eqtf2")
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DEF(TOK___netf2, "__netf2")
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DEF(TOK___lttf2, "__lttf2")
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DEF(TOK___letf2, "__letf2")
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DEF(TOK___gttf2, "__gttf2")
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DEF(TOK___getf2, "__getf2")
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#endif
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/* bound checking symbols */
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#ifdef CONFIG_TCC_BCHECK
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DEF(TOK___bound_ptr_add, "__bound_ptr_add")
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DEF(TOK___bound_ptr_indir1, "__bound_ptr_indir1")
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DEF(TOK___bound_ptr_indir2, "__bound_ptr_indir2")
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DEF(TOK___bound_ptr_indir4, "__bound_ptr_indir4")
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DEF(TOK___bound_ptr_indir8, "__bound_ptr_indir8")
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DEF(TOK___bound_ptr_indir12, "__bound_ptr_indir12")
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DEF(TOK___bound_ptr_indir16, "__bound_ptr_indir16")
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DEF(TOK___bound_main_arg, "__bound_main_arg")
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DEF(TOK___bound_local_new, "__bound_local_new")
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DEF(TOK___bound_local_delete, "__bound_local_delete")
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# ifdef TCC_TARGET_PE
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DEF(TOK_malloc, "malloc")
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DEF(TOK_free, "free")
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DEF(TOK_realloc, "realloc")
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DEF(TOK_memalign, "memalign")
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DEF(TOK_calloc, "calloc")
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# endif
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DEF(TOK_strlen, "strlen")
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DEF(TOK_strcpy, "strcpy")
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#endif
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/* Tiny Assembler */
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DEF_ASMDIR(byte) /* must be first directive */
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DEF_ASMDIR(word)
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DEF_ASMDIR(align)
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DEF_ASMDIR(balign)
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DEF_ASMDIR(p2align)
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DEF_ASMDIR(set)
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DEF_ASMDIR(skip)
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DEF_ASMDIR(space)
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DEF_ASMDIR(string)
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DEF_ASMDIR(asciz)
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DEF_ASMDIR(ascii)
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DEF_ASMDIR(file)
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DEF_ASMDIR(globl)
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DEF_ASMDIR(global)
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DEF_ASMDIR(weak)
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DEF_ASMDIR(hidden)
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DEF_ASMDIR(ident)
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DEF_ASMDIR(size)
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DEF_ASMDIR(type)
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DEF_ASMDIR(text)
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DEF_ASMDIR(data)
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DEF_ASMDIR(bss)
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DEF_ASMDIR(previous)
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DEF_ASMDIR(pushsection)
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DEF_ASMDIR(popsection)
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DEF_ASMDIR(fill)
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DEF_ASMDIR(rept)
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DEF_ASMDIR(endr)
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DEF_ASMDIR(org)
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DEF_ASMDIR(quad)
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#if defined(TCC_TARGET_I386)
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DEF_ASMDIR(code16)
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DEF_ASMDIR(code32)
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#elif defined(TCC_TARGET_X86_64)
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DEF_ASMDIR(code64)
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#endif
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DEF_ASMDIR(short)
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DEF_ASMDIR(long)
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DEF_ASMDIR(int)
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DEF_ASMDIR(section) /* must be last directive */
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#if defined TCC_TARGET_I386 || defined TCC_TARGET_X86_64
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#include "i386-tok.h"
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#endif
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