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AK: Don't use x86 assembly when building for non-x86 targets

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This allows Lagom to be built successfully for Apple M1.

Fixes #12644.
This commit is contained in:
Gunnar Beutner 2022-02-19 10:37:05 +01:00 committed by Idan Horowitz
parent 12d75b10f3
commit 7a65bd8efb
Notes: sideshowbarker 2024-07-17 18:32:46 +09:00 
Author: https://github.com/gunnarbeutner
Commit: https://github.com/SerenityOS/serenity/commit/7a65bd8efb
Pull-request: https://github.com/SerenityOS/serenity/pull/12648
Issue: https://github.com/SerenityOS/serenity/issues/12644
Reviewed-by: https://github.com/IdanHo ✅
1 changed files with 62 additions and 0 deletions
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62
AK/Math.h
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@ -51,6 +51,8 @@ template<FloatingPoint T>
constexpr T fmod(T x, T y)
{
CONSTEXPR_STATE(fmod, x, y);
#if ARCH(I386) || ARCH(X86_64)
u16 fpu_status;
do {
asm(
@ -60,11 +62,16 @@ constexpr T fmod(T x, T y)
: "u"(y));
} while (fpu_status & 0x400);
return x;
#else
return __builtin_fmod(x, y);
#endif
}
template<FloatingPoint T>
constexpr T remainder(T x, T y)
{
CONSTEXPR_STATE(remainder, x, y);
#if ARCH(I386) || ARCH(X86_64)
u16 fpu_status;
do {
asm(
@ -74,6 +81,9 @@ constexpr T remainder(T x, T y)
: "u"(y));
} while (fpu_status & 0x400);
return x;
#else
return __builtin_fmod(x, y);
#endif
}
}
@ -84,11 +94,16 @@ template<FloatingPoint T>
constexpr T sqrt(T x)
{
CONSTEXPR_STATE(sqrt, x);
#if ARCH(I386) || ARCH(X86_64)
T res;
asm("fsqrt"
: "=t"(res)
: "0"(x));
return res;
#else
return __builtin_sqrt(x);
#endif
}
template<FloatingPoint T>
@ -136,10 +151,14 @@ constexpr T fabs(T x)
{
if (is_constant_evaluated())
return x < 0 ? -x : x;
#if ARCH(I386) || ARCH(X86_64)
asm(
"fabs"
: "+t"(x));
return x;
#else
return __builtin_fabs(x);
#endif
}
namespace Trigonometry {
@ -154,30 +173,42 @@ template<FloatingPoint T>
constexpr T sin(T angle)
{
CONSTEXPR_STATE(sin, angle);
#if ARCH(I386) || ARCH(X86_64)
T ret;
asm(
"fsin"
: "=t"(ret)
: "0"(angle));
return ret;
#else
return __builtin_sin(angle);
#endif
}
template<FloatingPoint T>
constexpr T cos(T angle)
{
CONSTEXPR_STATE(cos, angle);
#if ARCH(I386) || ARCH(X86_64)
T ret;
asm(
"fcos"
: "=t"(ret)
: "0"(angle));
return ret;
#else
return __builtin_cos(angle);
#endif
}
template<FloatingPoint T>
constexpr T tan(T angle)
{
CONSTEXPR_STATE(tan, angle);
#if ARCH(I386) || ARCH(X86_64)
double ret, one;
asm(
"fptan"
@ -185,6 +216,9 @@ constexpr T tan(T angle)
: "0"(angle));
return ret;
#else
return __builtin_tan(angle);
#endif
}
template<FloatingPoint T>
@ -192,6 +226,7 @@ constexpr T atan(T value)
{
CONSTEXPR_STATE(atan, value);
#if ARCH(I386) || ARCH(X86_64)
T ret;
asm(
"fld1\n"
@ -199,6 +234,9 @@ constexpr T atan(T value)
: "=t"(ret)
: "0"(value));
return ret;
#else
return __builtin_atan(value);
#endif
}
template<FloatingPoint T>
@ -244,12 +282,16 @@ constexpr T atan2(T y, T x)
{
CONSTEXPR_STATE(atan2, y, x);
#if ARCH(I386) || ARCH(X86_64)
T ret;
asm("fpatan"
: "=t"(ret)
: "0"(x), "u"(y)
: "st(1)");
return ret;
#else
return __builtin_atan2(y, x);
#endif
}
}
@ -270,6 +312,7 @@ constexpr T log(T x)
{
CONSTEXPR_STATE(log, x);
#if ARCH(I386) || ARCH(X86_64)
T ret;
asm(
"fldln2\n"
@ -278,6 +321,9 @@ constexpr T log(T x)
: "=t"(ret)
: "0"(x));
return ret;
#else
return __builtin_log(x);
#endif
}
template<FloatingPoint T>
@ -285,6 +331,7 @@ constexpr T log2(T x)
{
CONSTEXPR_STATE(log2, x);
#if ARCH(I386) || ARCH(X86_64)
T ret;
asm(
"fld1\n"
@ -293,6 +340,9 @@ constexpr T log2(T x)
: "=t"(ret)
: "0"(x));
return ret;
#else
return __builtin_log2(x);
#endif
}
template<FloatingPoint T>
@ -300,6 +350,7 @@ constexpr T log10(T x)
{
CONSTEXPR_STATE(log10, x);
#if ARCH(I386) || ARCH(X86_64)
T ret;
asm(
"fldlg2\n"
@ -308,6 +359,9 @@ constexpr T log10(T x)
: "=t"(ret)
: "0"(x));
return ret;
#else
return __builtin_log10(x);
#endif
}
template<FloatingPoint T>
@ -315,6 +369,7 @@ constexpr T exp(T exponent)
{
CONSTEXPR_STATE(exp, exponent);
#if ARCH(I386) || ARCH(X86_64)
T res;
asm("fldl2e\n"
"fmulp\n"
@ -328,6 +383,9 @@ constexpr T exp(T exponent)
: "=t"(res)
: "0"(exponent));
return res;
#else
return __builtin_exp(exponent);
#endif
}
template<FloatingPoint T>
@ -335,6 +393,7 @@ constexpr T exp2(T exponent)
{
CONSTEXPR_STATE(exp2, exponent);
#if ARCH(I386) || ARCH(X86_64)
T res;
asm("fld1\n"
"fld %%st(1)\n"
@ -346,6 +405,9 @@ constexpr T exp2(T exponent)
: "=t"(res)
: "0"(exponent));
return res;
#else
return __builtin_exp2(exponent);
#endif
}
}