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Looking at the assembly of s_ceill, I decided to rewrite the i386 version for x86-64. This one also passes the testsuite. I think we should add Gwenole's patch to ldbl-96 and my patches. Ok to commit this one? Andreas 2003-11-13 Andreas Jaeger <aj@suse.de> * sysdeps/x86_64/fpu/s_ceill.S: New file. ============================================================ Index: sysdeps/x86_64/fpu/s_ceill.S --- sysdeps/x86_64/fpu/s_ceill.S created +++ sysdeps/x86_64/fpu/s_ceill.S 2003-11-12 19:30:58.000000000 +0100 1.1 @@ -0,0 +1,31 @@ +/* + * Written by J.T. Conklin <jtc@netbsd.org>. + * Changes for long double by Ulrich Drepper <drepper@cygnus.com> + * Changes for x86-64 by Andreas Jaeger <aj@suse.de> + * Public domain. + */ + +#include <machine/asm.h> + + +ENTRY(__ceill) + fldt 8(%rsp) + + fstcw -4(%rsp) /* store fpu control word */ + + /* We use here %edx although only the low 1 bits are defined. + But none of the operations should care and they are faster + than the 16 bit operations. */ + movl $0x0800,%edx /* round towards +oo */ + orl -4(%rsp),%edx + andl $0xfbff,%edx + movl %edx,-8(%rsp) + fldcw -8(%rsp) /* load modified control word */ + + frndint /* round */ + + fldcw -4(%rsp) /* restore original control word */ + + ret +END (__ceill) +weak_alias (__ceill, ceill) -- Andreas Jaeger, aj@suse.de, http://www.suse.de/~aj SuSE Linux AG, Deutschherrnstr. 15-19, 90429 Nürnberg, Germany GPG fingerprint = 93A3 365E CE47 B889 DF7F FED1 389A 563C C272 A126
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