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| author | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
|---|---|---|
| committer | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
| commit | 5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch) | |
| tree | 4470480d904b65cf14ca524f96f79eca818c3eaf /sysdeps/x86_64/fpu/e_scalbl.S | |
| parent | 199fc19d3aaaf57944ef036e15904febe877fc93 (diff) | |
| download | glibc-zack/build-layout-experiment.tar.gz | |
Prepare for radical source tree reorganization.zack/build-layout-experiment
All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).
Diffstat (limited to 'sysdeps/x86_64/fpu/e_scalbl.S')
| -rw-r--r-- | sysdeps/x86_64/fpu/e_scalbl.S | 89 |
1 files changed, 0 insertions, 89 deletions
diff --git a/sysdeps/x86_64/fpu/e_scalbl.S b/sysdeps/x86_64/fpu/e_scalbl.S deleted file mode 100644 index 2982dc3b9e..0000000000 --- a/sysdeps/x86_64/fpu/e_scalbl.S +++ /dev/null @@ -1,89 +0,0 @@ -/* - * Written by J.T. Conklin <jtc@netbsd.org>. - * Public domain. - * - * Adapted for `long double' by Ulrich Drepper <drepper@cygnus.com>. - * Adapted for x86-64 by Andreas Jaeger <aj@suse.de> - * - * Correct handling of y==-inf <drepper@gnu> - */ - -#include <machine/asm.h> - - .section .rodata - - .align ALIGNARG(4) - .type zero_nan,@object -zero_nan: - .double 0.0 -nan: .byte 0, 0, 0, 0, 0, 0, 0xff, 0x7f - .byte 0, 0, 0, 0, 0, 0, 0, 0x80 - .byte 0, 0, 0, 0, 0, 0, 0xff, 0x7f - ASM_SIZE_DIRECTIVE(zero_nan) - - -#ifdef PIC -# define MO(op) op##(%rip) -#else -# define MO(op) op -#endif - - .text -ENTRY(__ieee754_scalbl) - fldt 24(%rsp) - fxam - fnstsw - fldt 8(%rsp) - andl $0x4700, %eax - cmpl $0x0700, %eax - je 1f - andl $0x4500, %eax - cmpl $0x0100, %eax - je 2f - fxam - fnstsw - andl $0x4500, %eax - cmpl $0x0100, %eax - je 2f - fld %st(1) - frndint - fcomip %st(2), %st - jne 4f - fscale - fstp %st(1) - ret - - /* y is -inf */ -1: fxam - fnstsw - movl 16(%rsp), %edx - shrl $5, %eax - fstp %st - fstp %st - andl $0x8000, %edx - andl $0x0228, %eax - cmpl $0x0028, %eax - je 4f - andl $8, %eax - shrl $11, %edx - addl %edx, %eax -#ifdef PIC - lea zero_nan(%rip),%rdx - fldl (%rdx,%rax,1) -#else - fldl zero_nan(%rax, 1) -#endif - ret - - /* The result is NaN; raise an exception for sNaN arguments. */ -2: faddp - ret - - /* Return NaN and raise the invalid exception. */ -4: fstp %st - fstp %st - fldz - fdiv %st - ret -END(__ieee754_scalbl) -strong_alias (__ieee754_scalbl, __scalbl_finite) |