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[builtins] Support QUAD with native long double #77981

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[builtins] Support QUAD with native long double #77981

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01b59de
support QUAD with native long double
perry-ca Jan 12, 2024
f7155a7
missing line continue
perry-ca Jan 12, 2024
8dee7e1
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perry-ca Jan 12, 2024
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2 changes: 1 addition & 1 deletion compiler-rt/lib/builtins/divtc3.c
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Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,7 @@
#define QUAD_PRECISION
#include "fp_lib.h"

#if defined(CRT_HAS_TF_MODE)
#if defined(CRT_HAS_F128)

// Returns: the quotient of (a + ib) / (c + id)

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6 changes: 5 additions & 1 deletion compiler-rt/lib/builtins/fp_lib.h
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Expand Up @@ -92,7 +92,7 @@ static __inline void wideMultiply(rep_t a, rep_t b, rep_t *hi, rep_t *lo) {

COMPILER_RT_ABI fp_t __adddf3(fp_t a, fp_t b);

#elif defined QUAD_PRECISION
#elif defined QUAD_PRECISION && defined(CRT_HAS_F128)
#if defined(CRT_HAS_TF_MODE)
typedef uint64_t half_rep_t;
typedef __uint128_t rep_t;
Expand Down Expand Up @@ -188,6 +188,8 @@ static __inline void wideMultiply(rep_t a, rep_t b, rep_t *hi, rep_t *lo) {
#undef Word_HiMask
#undef Word_LoMask
#undef Word_FullMask
#else
typedef long double fp_t;
#endif // defined(CRT_HAS_TF_MODE)
#else
#error SINGLE_PRECISION, DOUBLE_PRECISION or QUAD_PRECISION must be defined.
Expand Down Expand Up @@ -405,6 +407,8 @@ static __inline tf_float __compiler_rt_fmaxtf(tf_float x, tf_float y) {
#define __compiler_rt_logbl crt_logbl
#define __compiler_rt_scalbnl crt_scalbnl
#define __compiler_rt_fmaxl crt_fmaxl
#define crt_fabstf crt_fabsl
#define crt_copysigntf crt_copysignl
#else
#error Unsupported TF mode type
#endif
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8 changes: 6 additions & 2 deletions compiler-rt/lib/builtins/int_types.h
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Expand Up @@ -189,12 +189,16 @@ typedef long double tf_float;
#define CRT_LDBL_IEEE_F128
#endif
#define TF_C(x) x##L
#elif __LDBL_MANT_DIG__ == 113
// Use long double instead of __float128 if it matches the IEEE 128-bit format.
#elif __LDBL_MANT_DIG__ == 113 || \
(__FLT_RADIX__ == 16 && __LDBL_MANT_DIG__ == 28)
// Use long double instead of __float128 if it matches the IEEE 128-bit format
// or the IBM hexadecimal format.
#define CRT_LDBL_128BIT
#define CRT_HAS_F128
#if __LDBL_MANT_DIG__ == 113
#define CRT_HAS_IEEE_TF
#define CRT_LDBL_IEEE_F128
#endif
typedef long double tf_float;
#define TF_C(x) x##L
#elif defined(__FLOAT128__) || defined(__SIZEOF_FLOAT128__)
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2 changes: 1 addition & 1 deletion compiler-rt/lib/builtins/multc3.c
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Expand Up @@ -15,7 +15,7 @@
#include "int_lib.h"
#include "int_math.h"

#if defined(CRT_HAS_TF_MODE)
#if defined(CRT_HAS_F128)

// Returns: the product of a + ib and c + id

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