[libc][NFC] Rename LIBC_LONG_DOUBLE_IS_ macros

libc/src/__support/FPUtil/ManipulationFunctions.h

@@ -233,8 +233,8 @@ LIBC_INLINE T nextafter(T from, U to) {
 } // namespace fputil
 } // namespace LIBC_NAMESPACE
 
-#ifdef LIBC_LONG_DOUBLE_IS_X86_FLOAT80
+#ifdef LIBC_TYPES_LONG_DOUBLE_IS_X86_FLOAT80
 #include "x86_64/NextAfterLongDouble.h"
-#endif // LIBC_LONG_DOUBLE_IS_X86_FLOAT80
+#endif // LIBC_TYPES_LONG_DOUBLE_IS_X86_FLOAT80
 
 #endif // LLVM_LIBC_SRC___SUPPORT_FPUTIL_MANIPULATIONFUNCTIONS_H

libc/src/__support/FPUtil/NormalFloat.h

@@ -172,7 +172,7 @@ template <typename T> struct NormalFloat {
   }
 };
 
-#ifdef LIBC_LONG_DOUBLE_IS_X86_FLOAT80
+#ifdef LIBC_TYPES_LONG_DOUBLE_IS_X86_FLOAT80
 template <>
 LIBC_INLINE void
 NormalFloat<long double>::init_from_bits(FPBits<long double> bits) {
@@ -261,7 +261,7 @@ template <> LIBC_INLINE NormalFloat<long double>::operator long double() const {
   result.set_implicit_bit(1);
   return result.get_val();
 }
-#endif // LIBC_LONG_DOUBLE_IS_X86_FLOAT80
+#endif // LIBC_TYPES_LONG_DOUBLE_IS_X86_FLOAT80
 
 } // namespace fputil
 } // namespace LIBC_NAMESPACE

libc/src/__support/FPUtil/generic/sqrt.h

@@ -27,11 +27,11 @@ template <typename T> struct SpecialLongDouble {
   static constexpr bool VALUE = false;
 };
 
-#if defined(LIBC_LONG_DOUBLE_IS_X86_FLOAT80)
+#if defined(LIBC_TYPES_LONG_DOUBLE_IS_X86_FLOAT80)
 template <> struct SpecialLongDouble<long double> {
   static constexpr bool VALUE = true;
 };
-#endif // LIBC_LONG_DOUBLE_IS_X86_FLOAT80
+#endif // LIBC_TYPES_LONG_DOUBLE_IS_X86_FLOAT80
 
 template <typename T>
 LIBC_INLINE void normalize(int &exponent,
@@ -43,12 +43,12 @@ LIBC_INLINE void normalize(int &exponent,
   mantissa <<= shift;
 }
 
-#ifdef LIBC_LONG_DOUBLE_IS_FLOAT64
+#ifdef LIBC_TYPES_LONG_DOUBLE_IS_FLOAT64
 template <>
 LIBC_INLINE void normalize<long double>(int &exponent, uint64_t &mantissa) {
   normalize<double>(exponent, mantissa);
 }
-#elif !defined(LIBC_LONG_DOUBLE_IS_X86_FLOAT80)
+#elif !defined(LIBC_TYPES_LONG_DOUBLE_IS_X86_FLOAT80)
 template <>
 LIBC_INLINE void normalize<long double>(int &exponent, UInt128 &mantissa) {
   const uint64_t hi_bits = static_cast<uint64_t>(mantissa >> 64);

libc/src/__support/FPUtil/generic/sqrt_80_bit_long_double.h

@@ -34,7 +34,7 @@ LIBC_INLINE long double sqrt(long double x);
 
 // Correctly rounded SQRT for all rounding modes.
 // Shift-and-add algorithm.
-#if defined(LIBC_LONG_DOUBLE_IS_X86_FLOAT80)
+#if defined(LIBC_TYPES_LONG_DOUBLE_IS_X86_FLOAT80)
 LIBC_INLINE long double sqrt(long double x) {
   using LDBits = FPBits<long double>;
   using StorageType = typename LDBits::StorageType;
@@ -130,7 +130,7 @@ LIBC_INLINE long double sqrt(long double x) {
     return out.get_val();
   }
 }
-#endif // LIBC_LONG_DOUBLE_IS_X86_FLOAT80
+#endif // LIBC_TYPES_LONG_DOUBLE_IS_X86_FLOAT80
 
 } // namespace x86
 } // namespace fputil

libc/src/__support/FPUtil/x86_64/sqrt.h

@@ -33,7 +33,7 @@ template <> LIBC_INLINE double sqrt<double>(double x) {
   return result;
 }
 
-#ifdef LIBC_LONG_DOUBLE_IS_FLOAT64
+#ifdef LIBC_TYPES_LONG_DOUBLE_IS_FLOAT64
 template <> LIBC_INLINE long double sqrt<long double>(long double x) {
   long double result;
   __asm__ __volatile__("sqrtsd %x1, %x0" : "=x"(result) : "x"(x));

libc/src/__support/float_to_string.h

@@ -615,7 +615,7 @@ class FloatToString {
   }
 };
 
-#if !defined(LIBC_LONG_DOUBLE_IS_FLOAT64) &&                                   \
+#if !defined(LIBC_TYPES_LONG_DOUBLE_IS_FLOAT64) &&                             \
     !defined(LIBC_COPT_FLOAT_TO_STR_NO_SPECIALIZE_LD)
 // --------------------------- LONG DOUBLE FUNCTIONS ---------------------------
 
@@ -837,7 +837,7 @@ template <> class FloatToString<long double> {
   }
 };
 
-#endif // !LIBC_LONG_DOUBLE_IS_FLOAT64 &&
+#endif // !LIBC_TYPES_LONG_DOUBLE_IS_FLOAT64 &&
        // !LIBC_COPT_FLOAT_TO_STR_NO_SPECIALIZE_LD
 
 } // namespace LIBC_NAMESPACE

libc/src/__support/macros/properties/types.h

@@ -19,11 +19,11 @@
 
 // 'long double' properties.
 #if (LDBL_MANT_DIG == 53)
-#define LIBC_LONG_DOUBLE_IS_FLOAT64
+#define LIBC_TYPES_LONG_DOUBLE_IS_FLOAT64
 #elif (LDBL_MANT_DIG == 64)
-#define LIBC_LONG_DOUBLE_IS_X86_FLOAT80
+#define LIBC_TYPES_LONG_DOUBLE_IS_X86_FLOAT80
 #elif (LDBL_MANT_DIG == 113)
-#define LIBC_LONG_DOUBLE_IS_FLOAT128
+#define LIBC_TYPES_LONG_DOUBLE_IS_FLOAT128
 #endif
 
 // float16 support.
@@ -53,7 +53,7 @@ using float16 = _Float16;
 // float128 support.
 #if defined(LIBC_COMPILER_HAS_C23_FLOAT128) ||                                 \
     defined(LIBC_COMPILER_HAS_FLOAT128_EXTENSION) ||                           \
-    defined(LIBC_LONG_DOUBLE_IS_FLOAT128)
+    defined(LIBC_TYPES_LONG_DOUBLE_IS_FLOAT128)
 #define LIBC_TYPES_HAS_FLOAT128
 #endif
 

libc/src/__support/str_to_float.h

@@ -51,13 +51,13 @@ template <class T> LIBC_INLINE void set_implicit_bit(fputil::FPBits<T> &) {
   return;
 }
 
-#if defined(LIBC_LONG_DOUBLE_IS_X86_FLOAT80)
+#if defined(LIBC_TYPES_LONG_DOUBLE_IS_X86_FLOAT80)
 template <>
 LIBC_INLINE void
 set_implicit_bit<long double>(fputil::FPBits<long double> &result) {
   result.set_implicit_bit(result.get_biased_exponent() != 0);
 }
-#endif
+#endif // LIBC_TYPES_LONG_DOUBLE_IS_X86_FLOAT80
 
 // This Eisel-Lemire implementation is based on the algorithm described in the
 // paper Number Parsing at a Gigabyte per Second, Software: Practice and
@@ -176,7 +176,7 @@ eisel_lemire(ExpandedFloat<T> init_num,
   return output;
 }
 
-#if !defined(LIBC_LONG_DOUBLE_IS_FLOAT64)
+#if !defined(LIBC_TYPES_LONG_DOUBLE_IS_FLOAT64)
 template <>
 LIBC_INLINE cpp::optional<ExpandedFloat<long double>>
 eisel_lemire<long double>(ExpandedFloat<long double> init_num,
@@ -297,7 +297,7 @@ eisel_lemire<long double>(ExpandedFloat<long double> init_num,
   output.exponent = exp2;
   return output;
 }
-#endif
+#endif // !defined(LIBC_TYPES_LONG_DOUBLE_IS_FLOAT64)
 
 // The nth item in POWERS_OF_TWO represents the greatest power of two less than
 // 10^n. This tells us how much we can safely shift without overshooting.
@@ -460,7 +460,7 @@ template <> class ClingerConsts<double> {
   static constexpr double MAX_EXACT_INT = 9007199254740991.0;
 };
 
-#if defined(LIBC_LONG_DOUBLE_IS_FLOAT64)
+#if defined(LIBC_TYPES_LONG_DOUBLE_IS_FLOAT64)
 template <> class ClingerConsts<long double> {
 public:
   static constexpr long double POWERS_OF_TEN_ARRAY[] = {
@@ -473,7 +473,7 @@ template <> class ClingerConsts<long double> {
   static constexpr long double MAX_EXACT_INT =
       ClingerConsts<double>::MAX_EXACT_INT;
 };
-#elif defined(LIBC_LONG_DOUBLE_IS_X86_FLOAT80)
+#elif defined(LIBC_TYPES_LONG_DOUBLE_IS_X86_FLOAT80)
 template <> class ClingerConsts<long double> {
 public:
   static constexpr long double POWERS_OF_TEN_ARRAY[] = {
@@ -484,7 +484,7 @@ template <> class ClingerConsts<long double> {
   static constexpr int32_t DIGITS_IN_MANTISSA = 21;
   static constexpr long double MAX_EXACT_INT = 18446744073709551615.0L;
 };
-#else
+#elif defined(LIBC_TYPES_LONG_DOUBLE_IS_FLOAT128)
 template <> class ClingerConsts<long double> {
 public:
   static constexpr long double POWERS_OF_TEN_ARRAY[] = {
@@ -498,6 +498,8 @@ template <> class ClingerConsts<long double> {
   static constexpr long double MAX_EXACT_INT =
       10384593717069655257060992658440191.0L;
 };
+#else
+#error "Unknown long double type"
 #endif
 
 // Take an exact mantissa and exponent and attempt to convert it using only

libc/test/src/__support/FPUtil/fpbits_test.cpp

@@ -503,7 +503,7 @@ TEST(LlvmLibcFPBitsTest, X86LongDoubleType) {
 }
 #else
 TEST(LlvmLibcFPBitsTest, LongDoubleType) {
-#if defined(LIBC_LONG_DOUBLE_IS_FLOAT64)
+#if defined(LIBC_TYPES_LONG_DOUBLE_IS_FLOAT64)
   return; // The tests for the "double" type cover for this case.
 #else
   using LongDoubleBits = FPBits<long double>;

libc/test/src/__support/str_to_long_double_test.cpp

@@ -7,13 +7,13 @@ namespace LIBC_NAMESPACE {
 using LlvmLibcStrToLongDblTest = LlvmLibcStrToFloatTest<long double>;
 using LIBC_NAMESPACE::operator""_u128;
 
-#if defined(LIBC_LONG_DOUBLE_IS_FLOAT64)
+#if defined(LIBC_TYPES_LONG_DOUBLE_IS_FLOAT64)
 
 TEST_F(LlvmLibcStrToLongDblTest, EiselLemireFloat64AsLongDouble) {
   eisel_lemire_test(123, 0, 0x1EC00000000000, 1029);
 }
 
-#elif defined(LIBC_LONG_DOUBLE_IS_X86_FLOAT80)
+#elif defined(LIBC_TYPES_LONG_DOUBLE_IS_X86_FLOAT80)
 
 TEST_F(LlvmLibcStrToLongDblTest, EiselLemireFloat80Simple) {
   eisel_lemire_test(123, 0, 0xf600000000000000, 16389);
@@ -54,7 +54,7 @@ TEST_F(LlvmLibcStrToLongDblTest, EiselLemireFloat80Fallback) {
   ASSERT_FALSE(internal::eisel_lemire<long double>({1, -1000}).has_value());
 }
 
-#else // Quad precision long double
+#elif defined(LIBC_TYPES_LONG_DOUBLE_IS_FLOAT128)
 
 TEST_F(LlvmLibcStrToLongDblTest, EiselLemireFloat128Simple) {
   eisel_lemire_test(123, 0, 0x1ec00'00000000'00000000'00000000_u128, 16389);
@@ -77,6 +77,8 @@ TEST_F(LlvmLibcStrToLongDblTest, EiselLemireFloat128Fallback) {
                    .has_value());
 }
 
+#else
+#error "Unknown long double type"
 #endif
 
 } // namespace LIBC_NAMESPACE

libc/test/src/math/smoke/nanl_test.cpp

@@ -12,12 +12,14 @@
 #include "test/UnitTest/Test.h"
 #include <signal.h>
 
-#if defined(LIBC_LONG_DOUBLE_IS_FLOAT64)
+#if defined(LIBC_TYPES_LONG_DOUBLE_IS_FLOAT64)
 #define SELECT_LONG_DOUBLE(val, _, __) val
-#elif defined(LIBC_LONG_DOUBLE_IS_X86_FLOAT80)
+#elif defined(LIBC_TYPES_LONG_DOUBLE_IS_X86_FLOAT80)
 #define SELECT_LONG_DOUBLE(_, val, __) val
-#else
+#elif defined(LIBC_TYPES_LONG_DOUBLE_IS_FLOAT128)
 #define SELECT_LONG_DOUBLE(_, __, val) val
+#else
+#error "Unknown long double type"
 #endif
 
 class LlvmLibcNanlTest : public LIBC_NAMESPACE::testing::Test {