riscv/musl - musl - Gitea: Git with a cup of tea

Commit Graph

Author	SHA1	Message	Date
Rich Felker	acb744921b	fix exp asm exponents (base 2) near 16383 were broken due to (1) wrong cutoff, and (2) inability to fit the necessary range of scalings into a long double value. as a solution, we fall back to using frndint/fscale for insanely large exponents, and also have to special-case infinities here to avoid inf-inf generating nan. thankfully the costly code never runs in normal usage cases.	14 years ago
nsz	634c3a6302	Merge branch 'master' of git://git.etalabs.net/musl	14 years ago
nsz	0cbb654791	code cleanup of named constants zero, one, two, half are replaced by const literals The policy was to use the f suffix for float consts (1.0f), but don't use suffix for long double consts (these consts can be exactly represented as double).	14 years ago
nsz	b03255af77	fix remainder*.c: remove useless long double cast	14 years ago
nsz	4caa17b2a1	don't try to create non-standard denormalization signal Underflow exception is only raised when the result is invalid, but fmod is always exact. x87 has a denormalization exception, but that's nonstandard. And the superflous *1.0 will be optimized away by any compiler that does not honor signaling nans.	14 years ago
Rich Felker	0108420281	Merge remote branch 'nsz/master'	14 years ago
nsz	75483499da	new modff.c code, fix nan handling in modfl	14 years ago
nsz	2786c7d216	use scalbn or 2.0 instead of ldexp, fix fmal Some code assumed ldexp(x, 1) is faster than 2.0x, but ldexp is a wrapper around scalbn which uses multiplications inside, so this optimization is wrong. This commit also fixes fmal which accidentally used ldexp instead of ldexpl loosing precision. There are various additional changes from the work-in-progress const cleanups.	14 years ago
nsz	01fdfd491b	fix long double const workaround in cbrtl	14 years ago
nsz	2e8c8fbe7d	don't inline __rem_pio2l so the code size is smaller	14 years ago
nsz	c3587effe2	minor fix in __tanl (get sign properly)	14 years ago
Rich Felker	d9c1d72cdc	bug fix: wrong opcode for writing long long	14 years ago
nsz	eca1c35e5b	remove long double const workarounds Some long double consts were stored in two doubles as a workaround for x86_64 and i386 with the following comment: /* Long double constants are slow on these arches, and broken on i386. */ This is most likely old gcc bug related to the default x87 fpu precision setting (it's double instead of double extended on BSD).	14 years ago
nsz	9a810cb685	fix erfl wrapper for long double==double case	14 years ago
Rich Felker	b04b588791	asm for log1p	14 years ago
Rich Felker	9d82a15e15	asm for log2	14 years ago
Rich Felker	27deb53889	asm for remquo this could perhaps use some additional testing for corner cases, but it seems to be correct.	14 years ago
Rich Felker	02db27d9de	optimize exponential asm for i386 up to 30% faster exp2 by avoiding slow frndint and fscale functions. expm1 also takes a much more direct path for small arguments (the expected usage case).	14 years ago
Rich Felker	da7458a602	Merge remote branch 'nsz/master'	14 years ago
Rich Felker	be5b01f855	fix broken modf family functions	14 years ago
Rich Felker	1bf4dad327	asm for modf functions	14 years ago
nsz	8051e08e10	simplify scalbn*.c implementations The old scalbn.c was wrong and slow, the new one is just slow. (scalbn(0x1p+1023,-2097) should give 0x1p-1074, but the old code gave 0)	14 years ago
nsz	f767aba8af	Merge branch 'master' of git://git.etalabs.net/musl	14 years ago
Rich Felker	0b70a1e9a9	asm for floor/ceil/trunc	14 years ago
nsz	9322344fa4	Merge branch 'master' of git://git.etalabs.net/musl	14 years ago
Rich Felker	58ff9e8eaf	asm for scalbn family unlike some implementations, these functions perform the equivalent of gcc's -ffloat-store on the result before returning. this is necessary to raise underflow/overflow/inexact exceptions, perform the correct rounding with denormals, etc.	14 years ago
Rich Felker	bc33e61704	asm for inverse trig functions unlike trig functions, these are easy to do in asm because they do not involve (arbitrary-precision) argument reduction. fpatan automatically takes care of domain issues, and in asin and acos, fsqrt takes care of them for us.	14 years ago
nsz	0627e58af8	Merge branch 'master' of git://git.etalabs.net/musl	14 years ago
Rich Felker	495a52ae7b	asm for log functions	14 years ago
Rich Felker	aa1b4dff45	fix broken exponential asm infinities were getting converted into nans. the new code simply tests for infinity and replaces it with a large magnitude value of the same sign. also, the fcomi instruction is apparently not part of the i387 instruction set, so avoid using it.	14 years ago
Rich Felker	37eb14dd2b	asm for lrint family on i386	14 years ago
nsz	dbdec9722e	Merge branch 'master' of git://git.etalabs.net/musl	14 years ago
Rich Felker	6f26cf3dac	asm exponential functions for i386	14 years ago
nsz	682e471400	remove unnecessary TODO comments from fma.c	14 years ago
nsz	d09a83f613	fmal bug fix: nan input should not raise exception	14 years ago
nsz	b1cbd70743	add fma implementation for x86 correctly rounded double precision fma using extended precision arithmetics for ld80 systems (x87)	14 years ago
Rich Felker	b935147761	assembly optimizations for fmod/remainder functions	14 years ago
Rich Felker	8d9e948652	asm versions of some simple math functions for i386 and x86_64 these are functions that have direct fpu approaches to implementation without problematic exception or rounding issues. x86_64 lacks float/double versions because i'm unfamiliar with the necessary sse code for performing these operations.	14 years ago
nsz	afad262440	simplify lround and llround functions Simple wrappers around round is enough because spurious inexact exception is allowed.	14 years ago
nsz	65db00983f	make lrint and llrint functions work without fenv support	14 years ago
nsz	9b6899f2c5	faster lrint and llrint functions A faster workaround for spurious inexact exceptions when the result cannot be represented. The old code actually could be wrong, because gcc reordered the integer conversion and the exception check.	14 years ago
Rich Felker	9e2a895aaa	fix loads of missing const in new libm, and some global vars (?!) in powl	14 years ago
Rich Felker	8e092217dd	move nonstandard gamma() etc. to _GNU_SOURCE only it's not even provided in the library at the moment, but could easily be provided with weak aliases if desired.	14 years ago
Rich Felker	65db6bf5ea	c++ seems to want some casts in the float representation-access macros	14 years ago
Rich Felker	da0acc32ef	release notes for 0.8.7	14 years ago
Rich Felker	b60053e762	try fixing/optimizing x86_64 fenv exception code untested; may need followup-fixes.	14 years ago
Rich Felker	316e024f63	optimize x86 feclearexcept if all exception flags will be cleared, we can avoid the expensive store/reload of the environment and just use the fnclex instruction.	14 years ago
Rich Felker	9cb6878e74	fix x86_64 fe[gs]etround, analogous to nsz's x86 changes	14 years ago
Rich Felker	d5e576c752	minor 387 fenv optimizations	14 years ago
Rich Felker	0b337e04aa	Merge remote branch 'nsz/master'	14 years ago

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1224 Commits (914949d321448bd2189bdcbce794dbae2c8ed16e) All Branches Search

1224 Commits (914949d321448bd2189bdcbce794dbae2c8ed16e)

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