grovel/src/fenv/x86_64, branch main Unnamed repository; edit this file 'description' to name the repository. http://euandre.org/git/grovel/atom?h=main 2018-09-12T18:34:32Z make arch __fesetround backends hidden 2018-09-12T18:34:32Z Rich Felker dalias@aerifal.cx 2018-09-10T19:51:44Z urn:sha1:039f1b3c564667ab6fc9955bd892c2e527eb80b0 these are not public interfaces and do not match the public function, but delegate argument checking to it. fix fesetenv(FE_DFL_ENV) on x86_64 (see previous commit) 2014-02-09T17:39:53Z Szabolcs Nagy nsz@port70.net 2014-02-09T17:39:53Z urn:sha1:7ee48f7b69523c68768684551bc37ba05496c27f fix fenv exception functions to mask their argument 2013-08-18T20:08:18Z Szabolcs Nagy nsz@port70.net 2013-08-18T20:08:18Z urn:sha1:a6b0170a7f51fdea9beec57ae794221290af232b fesetround.c is a wrapper to do the arch independent argument check (on archs where rounding mode is not stored in 2 bits __fesetround still has to check its arguments) on powerpc fe*except functions do not accept the extra invalid flags of its fpscr register the useless FENV_ACCESS pragma was removed from feupdateenv optimize x86 feclearexcept: only use save/restore x87 fenv if needed 2013-08-18T16:27:21Z Szabolcs Nagy nsz@port70.net 2013-08-18T15:34:07Z urn:sha1:d8764bf84022397ff9d22310f78fcd78d801e2bf the x87 exception summary (ES) and stack fault (SF) flags may be spuriously cleared by feclearexcept using the fnclex instruction, but these flags are not observable through libc hence maintaining their state is not critical. add sse fenv support on i386 through hwcap 2013-08-18T16:27:20Z Szabolcs Nagy nsz@port70.net 2013-08-17T02:40:44Z urn:sha1:ebc10fa17634a6ddb87a3aedd71b7d9617d12c19 the sse and x87 rounding modes should be always the same, the visible exception flags are the bitwise or of the two fenv states (so it's enough to query the rounding mode or raise exceptions on one fenv) try fixing/optimizing x86_64 fenv exception code 2012-03-18T00:10:02Z Rich Felker dalias@aerifal.cx 2012-03-18T00:10:02Z urn:sha1:b60053e7621a29ace6ab5c7b4e256e252f31ad13 untested; may need followup-fixes. fix x86_64 fe[gs]etround, analogous to nsz's x86 changes 2012-03-17T22:02:20Z Rich Felker dalias@aerifal.cx 2012-03-17T22:02:20Z urn:sha1:9cb6878e747909c7a45dd1c4dd550ac62e1f7690 use type directives for fenv asm functions 2011-06-28T18:41:41Z Rich Felker dalias@aerifal.cx 2011-06-28T18:41:41Z urn:sha1:e41182796014b0e2b52c7b3e6ee69ad7d0c3e723 x86_64 fenv support (untested; at least known to build successfully) 2011-06-13T17:37:43Z Rich Felker dalias@aerifal.cx 2011-06-13T17:37:43Z urn:sha1:773b0fe4473be18fdcc1b822630e2ebdb1719536