405 lines
12 KiB
C++
405 lines
12 KiB
C++
#ifndef SLANG_LLVM_H
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#define SLANG_LLVM_H
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// TODO(JS):
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// Disable exception declspecs, as not supported on LLVM without some extra options.
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// We could enable with `-fms-extensions`
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#define SLANG_DISABLE_EXCEPTIONS 1
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#ifndef SLANG_PRELUDE_ASSERT
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#ifdef SLANG_PRELUDE_ENABLE_ASSERT
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extern "C" void assertFailure(const char* msg);
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#define SLANG_PRELUDE_EXPECT(VALUE, MSG) \
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if (VALUE) \
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{ \
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} \
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else \
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assertFailure("assertion failed: '" MSG "'")
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#define SLANG_PRELUDE_ASSERT(VALUE) SLANG_PRELUDE_EXPECT(VALUE, #VALUE)
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#else // SLANG_PRELUDE_ENABLE_ASSERT
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#define SLANG_PRELUDE_EXPECT(VALUE, MSG)
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#define SLANG_PRELUDE_ASSERT(x)
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#endif // SLANG_PRELUDE_ENABLE_ASSERT
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#endif
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/*
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Taken from stddef.h
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*/
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typedef __PTRDIFF_TYPE__ ptrdiff_t;
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typedef __SIZE_TYPE__ size_t;
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typedef __SIZE_TYPE__ rsize_t;
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// typedef __WCHAR_TYPE__ wchar_t;
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#if defined(__need_NULL)
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#undef NULL
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#ifdef __cplusplus
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#if !defined(__MINGW32__) && !defined(_MSC_VER)
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#define NULL __null
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#else
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#define NULL 0
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#endif
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#else
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#define NULL ((void*)0)
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#endif
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#ifdef __cplusplus
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#if defined(_MSC_EXTENSIONS) && defined(_NATIVE_NULLPTR_SUPPORTED)
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namespace std
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{
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typedef decltype(nullptr) nullptr_t;
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}
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using ::std::nullptr_t;
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#endif
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#endif
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#undef __need_NULL
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#endif /* defined(__need_NULL) */
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/*
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The following are taken verbatim from stdint.h from Clang in LLVM. Only 8/16/32/64 types are needed.
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*/
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// LLVM/Clang types such that we can use LLVM/Clang without headers for C++ output from Slang
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#ifdef __INT64_TYPE__
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#ifndef __int8_t_defined /* glibc sys/types.h also defines int64_t*/
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typedef __INT64_TYPE__ int64_t;
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#endif /* __int8_t_defined */
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typedef __UINT64_TYPE__ uint64_t;
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#define __int_least64_t int64_t
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#define __uint_least64_t uint64_t
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#endif /* __INT64_TYPE__ */
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#ifdef __int_least64_t
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typedef __int_least64_t int_least64_t;
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typedef __uint_least64_t uint_least64_t;
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typedef __int_least64_t int_fast64_t;
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typedef __uint_least64_t uint_fast64_t;
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#endif /* __int_least64_t */
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#ifdef __INT32_TYPE__
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#ifndef __int8_t_defined /* glibc sys/types.h also defines int32_t*/
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typedef __INT32_TYPE__ int32_t;
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#endif /* __int8_t_defined */
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#ifndef __uint32_t_defined /* more glibc compatibility */
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#define __uint32_t_defined
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typedef __UINT32_TYPE__ uint32_t;
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#endif /* __uint32_t_defined */
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#define __int_least32_t int32_t
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#define __uint_least32_t uint32_t
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#endif /* __INT32_TYPE__ */
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#ifdef __int_least32_t
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typedef __int_least32_t int_least32_t;
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typedef __uint_least32_t uint_least32_t;
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typedef __int_least32_t int_fast32_t;
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typedef __uint_least32_t uint_fast32_t;
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#endif /* __int_least32_t */
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#ifdef __INT16_TYPE__
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#ifndef __int8_t_defined /* glibc sys/types.h also defines int16_t*/
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typedef __INT16_TYPE__ int16_t;
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#endif /* __int8_t_defined */
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typedef __UINT16_TYPE__ uint16_t;
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#define __int_least16_t int16_t
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#define __uint_least16_t uint16_t
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#endif /* __INT16_TYPE__ */
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#ifdef __int_least16_t
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typedef __int_least16_t int_least16_t;
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typedef __uint_least16_t uint_least16_t;
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typedef __int_least16_t int_fast16_t;
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typedef __uint_least16_t uint_fast16_t;
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#endif /* __int_least16_t */
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#ifdef __INT8_TYPE__
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#ifndef __int8_t_defined /* glibc sys/types.h also defines int8_t*/
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typedef __INT8_TYPE__ int8_t;
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#endif /* __int8_t_defined */
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typedef __UINT8_TYPE__ uint8_t;
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#define __int_least8_t int8_t
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#define __uint_least8_t uint8_t
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#endif /* __INT8_TYPE__ */
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#ifdef __int_least8_t
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typedef __int_least8_t int_least8_t;
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typedef __uint_least8_t uint_least8_t;
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typedef __int_least8_t int_fast8_t;
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typedef __uint_least8_t uint_fast8_t;
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#endif /* __int_least8_t */
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/* prevent glibc sys/types.h from defining conflicting types */
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#ifndef __int8_t_defined
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#define __int8_t_defined
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#endif /* __int8_t_defined */
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/* C99 7.18.1.4 Integer types capable of holding object pointers.
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*/
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#define __stdint_join3(a, b, c) a##b##c
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#ifndef _INTPTR_T
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#ifndef __intptr_t_defined
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typedef __INTPTR_TYPE__ intptr_t;
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#define __intptr_t_defined
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#define _INTPTR_T
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#endif
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#endif
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#ifndef _UINTPTR_T
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typedef __UINTPTR_TYPE__ uintptr_t;
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#define _UINTPTR_T
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#endif
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/* C99 7.18.1.5 Greatest-width integer types.
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*/
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typedef __INTMAX_TYPE__ intmax_t;
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typedef __UINTMAX_TYPE__ uintmax_t;
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/* C99 7.18.4 Macros for minimum-width integer constants.
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*
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* The standard requires that integer constant macros be defined for all the
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* minimum-width types defined above. As 8-, 16-, 32-, and 64-bit minimum-width
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* types are required, the corresponding integer constant macros are defined
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* here. This implementation also defines minimum-width types for every other
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* integer width that the target implements, so corresponding macros are
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* defined below, too.
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*
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* These macros are defined using the same successive-shrinking approach as
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* the type definitions above. It is likewise important that macros are defined
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* in order of decending width.
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*
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* Note that C++ should not check __STDC_CONSTANT_MACROS here, contrary to the
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* claims of the C standard (see C++ 18.3.1p2, [cstdint.syn]).
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*/
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#define __int_c_join(a, b) a##b
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#define __int_c(v, suffix) __int_c_join(v, suffix)
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#define __uint_c(v, suffix) __int_c_join(v##U, suffix)
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#ifdef __INT64_TYPE__
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#ifdef __INT64_C_SUFFIX__
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#define __int64_c_suffix __INT64_C_SUFFIX__
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#else
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#undef __int64_c_suffix
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#endif /* __INT64_C_SUFFIX__ */
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#endif /* __INT64_TYPE__ */
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#ifdef __int_least64_t
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#ifdef __int64_c_suffix
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#define INT64_C(v) __int_c(v, __int64_c_suffix)
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#define UINT64_C(v) __uint_c(v, __int64_c_suffix)
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#else
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#define INT64_C(v) v
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#define UINT64_C(v) v##U
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#endif /* __int64_c_suffix */
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#endif /* __int_least64_t */
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#ifdef __INT32_TYPE__
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#ifdef __INT32_C_SUFFIX__
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#define __int32_c_suffix __INT32_C_SUFFIX__
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#else
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#undef __int32_c_suffix
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#endif /* __INT32_C_SUFFIX__ */
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#endif /* __INT32_TYPE__ */
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#ifdef __int_least32_t
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#ifdef __int32_c_suffix
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#define INT32_C(v) __int_c(v, __int32_c_suffix)
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#define UINT32_C(v) __uint_c(v, __int32_c_suffix)
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#else
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#define INT32_C(v) v
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#define UINT32_C(v) v##U
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#endif /* __int32_c_suffix */
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#endif /* __int_least32_t */
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#ifdef __INT16_TYPE__
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#ifdef __INT16_C_SUFFIX__
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#define __int16_c_suffix __INT16_C_SUFFIX__
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#else
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#undef __int16_c_suffix
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#endif /* __INT16_C_SUFFIX__ */
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#endif /* __INT16_TYPE__ */
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#ifdef __int_least16_t
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#ifdef __int16_c_suffix
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#define INT16_C(v) __int_c(v, __int16_c_suffix)
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#define UINT16_C(v) __uint_c(v, __int16_c_suffix)
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#else
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#define INT16_C(v) v
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#define UINT16_C(v) v##U
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#endif /* __int16_c_suffix */
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#endif /* __int_least16_t */
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#ifdef __INT8_TYPE__
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#ifdef __INT8_C_SUFFIX__
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#define __int8_c_suffix __INT8_C_SUFFIX__
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#else
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#undef __int8_c_suffix
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#endif /* __INT8_C_SUFFIX__ */
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#endif /* __INT8_TYPE__ */
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#ifdef __int_least8_t
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#ifdef __int8_c_suffix
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#define INT8_C(v) __int_c(v, __int8_c_suffix)
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#define UINT8_C(v) __uint_c(v, __int8_c_suffix)
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#else
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#define INT8_C(v) v
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#define UINT8_C(v) v##U
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#endif /* __int8_c_suffix */
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#endif /* __int_least8_t */
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/* C99 7.18.2.1 Limits of exact-width integer types.
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* C99 7.18.2.2 Limits of minimum-width integer types.
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* C99 7.18.2.3 Limits of fastest minimum-width integer types.
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*
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* The presence of limit macros are completely optional in C99. This
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* implementation defines limits for all of the types (exact- and
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* minimum-width) that it defines above, using the limits of the minimum-width
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* type for any types that do not have exact-width representations.
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*
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* As in the type definitions, this section takes an approach of
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* successive-shrinking to determine which limits to use for the standard (8,
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* 16, 32, 64) bit widths when they don't have exact representations. It is
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* therefore important that the definitions be kept in order of decending
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* widths.
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*
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* Note that C++ should not check __STDC_LIMIT_MACROS here, contrary to the
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* claims of the C standard (see C++ 18.3.1p2, [cstdint.syn]).
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*/
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#ifdef __INT64_TYPE__
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#define INT64_MAX INT64_C(9223372036854775807)
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#define INT64_MIN (-INT64_C(9223372036854775807) - 1)
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#define UINT64_MAX UINT64_C(18446744073709551615)
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#define __INT_LEAST64_MIN INT64_MIN
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#define __INT_LEAST64_MAX INT64_MAX
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#define __UINT_LEAST64_MAX UINT64_MAX
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#endif /* __INT64_TYPE__ */
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#ifdef __INT_LEAST64_MIN
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#define INT_LEAST64_MIN __INT_LEAST64_MIN
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#define INT_LEAST64_MAX __INT_LEAST64_MAX
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#define UINT_LEAST64_MAX __UINT_LEAST64_MAX
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#define INT_FAST64_MIN __INT_LEAST64_MIN
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#define INT_FAST64_MAX __INT_LEAST64_MAX
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#define UINT_FAST64_MAX __UINT_LEAST64_MAX
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#endif /* __INT_LEAST64_MIN */
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#ifdef __INT32_TYPE__
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#define INT32_MAX INT32_C(2147483647)
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#define INT32_MIN (-INT32_C(2147483647) - 1)
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#define UINT32_MAX UINT32_C(4294967295)
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#define __INT_LEAST32_MIN INT32_MIN
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#define __INT_LEAST32_MAX INT32_MAX
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#define __UINT_LEAST32_MAX UINT32_MAX
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#endif /* __INT32_TYPE__ */
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#ifdef __INT_LEAST32_MIN
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#define INT_LEAST32_MIN __INT_LEAST32_MIN
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#define INT_LEAST32_MAX __INT_LEAST32_MAX
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#define UINT_LEAST32_MAX __UINT_LEAST32_MAX
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#define INT_FAST32_MIN __INT_LEAST32_MIN
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#define INT_FAST32_MAX __INT_LEAST32_MAX
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#define UINT_FAST32_MAX __UINT_LEAST32_MAX
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#endif /* __INT_LEAST32_MIN */
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#ifdef __INT16_TYPE__
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#define INT16_MAX INT16_C(32767)
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#define INT16_MIN (-INT16_C(32767) - 1)
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#define UINT16_MAX UINT16_C(65535)
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#define __INT_LEAST16_MIN INT16_MIN
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#define __INT_LEAST16_MAX INT16_MAX
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#define __UINT_LEAST16_MAX UINT16_MAX
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#endif /* __INT16_TYPE__ */
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#ifdef __INT_LEAST16_MIN
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#define INT_LEAST16_MIN __INT_LEAST16_MIN
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#define INT_LEAST16_MAX __INT_LEAST16_MAX
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#define UINT_LEAST16_MAX __UINT_LEAST16_MAX
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#define INT_FAST16_MIN __INT_LEAST16_MIN
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#define INT_FAST16_MAX __INT_LEAST16_MAX
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#define UINT_FAST16_MAX __UINT_LEAST16_MAX
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#endif /* __INT_LEAST16_MIN */
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#ifdef __INT8_TYPE__
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#define INT8_MAX INT8_C(127)
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#define INT8_MIN (-INT8_C(127) - 1)
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#define UINT8_MAX UINT8_C(255)
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#define __INT_LEAST8_MIN INT8_MIN
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#define __INT_LEAST8_MAX INT8_MAX
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#define __UINT_LEAST8_MAX UINT8_MAX
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#endif /* __INT8_TYPE__ */
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#ifdef __INT_LEAST8_MIN
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#define INT_LEAST8_MIN __INT_LEAST8_MIN
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#define INT_LEAST8_MAX __INT_LEAST8_MAX
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#define UINT_LEAST8_MAX __UINT_LEAST8_MAX
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#define INT_FAST8_MIN __INT_LEAST8_MIN
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#define INT_FAST8_MAX __INT_LEAST8_MAX
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#define UINT_FAST8_MAX __UINT_LEAST8_MAX
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#endif /* __INT_LEAST8_MIN */
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/* Some utility macros */
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#define __INTN_MIN(n) __stdint_join3(INT, n, _MIN)
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#define __INTN_MAX(n) __stdint_join3(INT, n, _MAX)
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#define __UINTN_MAX(n) __stdint_join3(UINT, n, _MAX)
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#define __INTN_C(n, v) __stdint_join3(INT, n, _C(v))
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#define __UINTN_C(n, v) __stdint_join3(UINT, n, _C(v))
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/* C99 7.18.2.4 Limits of integer types capable of holding object pointers. */
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/* C99 7.18.3 Limits of other integer types. */
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#define INTPTR_MIN (-__INTPTR_MAX__ - 1)
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#define INTPTR_MAX __INTPTR_MAX__
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#define UINTPTR_MAX __UINTPTR_MAX__
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#define PTRDIFF_MIN (-__PTRDIFF_MAX__ - 1)
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#define PTRDIFF_MAX __PTRDIFF_MAX__
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#define SIZE_MAX __SIZE_MAX__
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/* ISO9899:2011 7.20 (C11 Annex K): Define RSIZE_MAX if __STDC_WANT_LIB_EXT1__
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* is enabled. */
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#if defined(__STDC_WANT_LIB_EXT1__) && __STDC_WANT_LIB_EXT1__ >= 1
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#define RSIZE_MAX (SIZE_MAX >> 1)
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#endif
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/* C99 7.18.2.5 Limits of greatest-width integer types. */
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#define INTMAX_MIN (-__INTMAX_MAX__ - 1)
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#define INTMAX_MAX __INTMAX_MAX__
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#define UINTMAX_MAX __UINTMAX_MAX__
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/* C99 7.18.3 Limits of other integer types. */
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#define SIG_ATOMIC_MIN __INTN_MIN(__SIG_ATOMIC_WIDTH__)
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#define SIG_ATOMIC_MAX __INTN_MAX(__SIG_ATOMIC_WIDTH__)
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#ifdef __WINT_UNSIGNED__
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#define WINT_MIN __UINTN_C(__WINT_WIDTH__, 0)
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#define WINT_MAX __UINTN_MAX(__WINT_WIDTH__)
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#else
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#define WINT_MIN __INTN_MIN(__WINT_WIDTH__)
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#define WINT_MAX __INTN_MAX(__WINT_WIDTH__)
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#endif
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#ifndef WCHAR_MAX
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#define WCHAR_MAX __WCHAR_MAX__
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#endif
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#ifndef WCHAR_MIN
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#if __WCHAR_MAX__ == __INTN_MAX(__WCHAR_WIDTH__)
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#define WCHAR_MIN __INTN_MIN(__WCHAR_WIDTH__)
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#else
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#define WCHAR_MIN __UINTN_C(__WCHAR_WIDTH__, 0)
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#endif
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#endif
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/* 7.18.4.2 Macros for greatest-width integer constants. */
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#define INTMAX_C(v) __int_c(v, __INTMAX_C_SUFFIX__)
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#define UINTMAX_C(v) __int_c(v, __UINTMAX_C_SUFFIX__)
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#endif // SLANG_LLVM_H
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