moved target_machine defines to the <target>-gen.c files.
Also:
- c2str.c moved into conftest.c
- tccdefs.h ; defined(__TINYC__) && !defined(_LOCORE) removed
(in tinycc __TINYC__ is always defined and _LO... is never.)
- stddef.h : too many #ifdefs, removed
- tccgen.c:stabs: support win32 long doubles aka doubles.
- win32: math.h/tcc_libm.h: fix pointer mismatch in modfl
- tccpp.c: increment include_stack_ptr after the file was
actually found otherwise it would print
"in file included from <itself>: file not found..."
1) Cleanup: moved function implementations from win32/include/math.h to win32/include/tcc/tcc_libm.h
2) Added missing math functions: MUSL: asinh(), acosh(), atanh(), scalbn(). My impl: log1p(), expm1(), ilogb(), scalbln(), nexttoward()
- now only a few are missing: remquo(), remainder(), fma(), nan(), erf(), erfc(), nearbyint().
3) Added/defined all missing *f() and *l() math functions.
4) Added functions have short but accurate/fast implementations.
5) Added <tgmath.h> for all platforms. (not too useful, IMO, but is C99 standard).
... in order to avoid fp stack overflow (see test below).
#include <math.h>
#include <stdio.h>
int main()
{
printf("%f %f %f %f\n", trunc(1.2), rint(1.2), trunc(1.2), rint(1.2));
printf("%f %f %f %f\n", trunc(1.2), rint(1.2), trunc(1.2), rint(1.2));
printf("%f %f %f %f\n", trunc(1.2), rint(1.2), trunc(1.2), rintl(1.2));
}
Also in rintl:
- 'long double' is not a ten-byte float on windows.
- Updated msvcrt.def with symbols from 64bit version of dll - it contains the float math functions missing in the 32bit dll.
- Made sure this patch only apply to to WIN32 and WIN64. For WIN32 float functions calls the double variants, on 64bit they are called natively.
by calling the double functions and removing unsupported __asm implementations using "=t".
This patch also enables the double version of logb(double).
Note: None of the 'long double' variants works though - could easily be fixed
by aliasing the double equvalents for completeness/compability.
The asm code cannot currently be used with tcc since tcc doesn't support 't'
constraint.
Use inline C implementation instead, place it win32/include/tcc/tcc_libm.h, and
include it from win32/include/math.h.
Since fpclassify now works, it also fixes few other macros which depend on it.
Implicitly fixed: isfinite, isinf, isnan, isnormal.
The implementations were taken from musl-libc rs-1.0 (MIT license).
musl-libc: http://git.musl-libc.org/cgit/musl/tree/src/math?h=rs-1.0
license: http://git.musl-libc.org/cgit/musl/tree/COPYRIGHT?h=rs-1.0
It was broken due to tcc not able to compile asm with 't' constraint, and it's
still broken because fpclassify on which it now depends has the same issue. Next
commit will fix this.
just for testing. Is it needed? I'm not a MSYS citizen.
run4flat is a tcc fork by David Mertens that knows how to work with
multiple symbol tables. Excelent work. A good descriptions of the
tcc internals inside a code comments.
- avoid assumption "ret_align == register_size" which is
false for non-arm targets
- rename symbol "sret" to more descriptive "ret_nregs"
This fixes commit dcec8673f2
Also:
- remove multiple definitions in win32/include/math.h
