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authorUlrich Drepper <drepper@gmail.com>2012-01-07 11:19:05 -0500
committerUlrich Drepper <drepper@gmail.com>2012-01-07 11:19:05 -0500
commitd75a0a62b12c35ee85f786d5f8d155ab39909411 (patch)
treec3479d23878ef4ab05629d4a60f4f7623269c1dd /sysdeps/ia64/fpu/s_floor.S
parentdcc9756b5bfbb2b97f73bad863d7e1c4002bea98 (diff)
downloadglibc-d75a0a62b12c35ee85f786d5f8d155ab39909411.tar.gz
Remove IA-64 support
Diffstat (limited to 'sysdeps/ia64/fpu/s_floor.S')
-rw-r--r--sysdeps/ia64/fpu/s_floor.S216
1 files changed, 0 insertions, 216 deletions
diff --git a/sysdeps/ia64/fpu/s_floor.S b/sysdeps/ia64/fpu/s_floor.S
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-.file "floor.s"
-
-
-// Copyright (c) 2000 - 2003, Intel Corporation
-// All rights reserved.
-//
-// Contributed 2000 by the Intel Numerics Group, Intel Corporation
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-// * Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-//
-// * Redistributions in binary form must reproduce the above copyright
-// notice, this list of conditions and the following disclaimer in the
-// documentation and/or other materials provided with the distribution.
-//
-// * The name of Intel Corporation may not be used to endorse or promote
-// products derived from this software without specific prior written
-// permission.
-
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTEL OR ITS
-// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
-// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY OR TORT (INCLUDING
-// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-//
-// Intel Corporation is the author of this code, and requests that all
-// problem reports or change requests be submitted to it directly at
-// http://www.intel.com/software/products/opensource/libraries/num.htm.
-//
-// History
-//==============================================================
-// 02/02/00 Initial version
-// 03/22/00 Updated to improve performance
-// 06/13/00 Improved speed, fixed setting of inexact flag
-// 06/27/00 Eliminated incorrect invalid flag setting
-// 02/07/01 Corrected sign of zero result in round to -inf mode
-// 05/20/02 Cleaned up namespace and sf0 syntax
-// 01/28/03 Improved performance
-//==============================================================
-
-// API
-//==============================================================
-// double floor(double x)
-//==============================================================
-
-// general input registers:
-// r14 - r18
-
-rSignexp = r14
-rExp = r15
-rExpMask = r16
-rBigexp = r17
-rM1 = r18
-
-// floating-point registers:
-// f8 - f13
-
-fXInt = f9
-fNormX = f10
-fTmp = f11
-fAdj = f12
-fPreResult = f13
-
-// predicate registers used:
-// p6 - p9
-
-// Overview of operation
-//==============================================================
-// double floor(double x)
-// Return an integer value (represented as a double) that is the largest
-// value not greater than x
-// This is x rounded toward -infinity to an integral value.
-// Inexact is set if x != floor(x)
-//==============================================================
-
-// double_extended
-// if the exponent is > 1003e => 3F(true) = 63(decimal)
-// we have a significand of 64 bits 1.63-bits.
-// If we multiply by 2^63, we no longer have a fractional part
-// So input is an integer value already.
-
-// double
-// if the exponent is >= 10033 => 34(true) = 52(decimal)
-// 34 + 3ff = 433
-// we have a significand of 53 bits 1.52-bits. (implicit 1)
-// If we multiply by 2^52, we no longer have a fractional part
-// So input is an integer value already.
-
-// single
-// if the exponent is > 10016 => 17(true) = 23(decimal)
-// we have a significand of 24 bits 1.23-bits. (implicit 1)
-// If we multiply by 2^23, we no longer have a fractional part
-// So input is an integer value already.
-
-
-.section .text
-GLOBAL_IEEE754_ENTRY(floor)
-
-{ .mfi
- getf.exp rSignexp = f8 // Get signexp, recompute if unorm
- fclass.m p7,p0 = f8, 0x0b // Test x unorm
- addl rBigexp = 0x10033, r0 // Set exponent at which is integer
-}
-{ .mfi
- mov rM1 = -1 // Set all ones
- fcvt.fx.trunc.s1 fXInt = f8 // Convert to int in significand
- mov rExpMask = 0x1FFFF // Form exponent mask
-}
-;;
-
-{ .mfi
- nop.m 0
- fcmp.lt.s1 p8,p9 = f8, f0 // Test x < 0
- nop.i 0
-}
-{ .mfb
- setf.sig fTmp = rM1 // Make const for setting inexact
- fnorm.s1 fNormX = f8 // Normalize input
-(p7) br.cond.spnt FLOOR_UNORM // Branch if x unorm
-}
-;;
-
-FLOOR_COMMON:
-// Return here from FLOOR_UNORM
-{ .mfi
- nop.m 0
- fclass.m p6,p0 = f8, 0x1e7 // Test x natval, nan, inf, 0
- nop.i 0
-}
-;;
-
-.pred.rel "mutex",p8,p9
-{ .mfi
- nop.m 0
-(p8) fnma.s1 fAdj = f1, f1, f0 // If x < 0, adjustment is -1
- nop.i 0
-}
-{ .mfi
- nop.m 0
-(p9) fma.s1 fAdj = f0, f0, f0 // If x > 0, adjustment is 0
- nop.i 0
-}
-;;
-
-{ .mfi
- nop.m 0
- fcvt.xf fPreResult = fXInt // trunc(x)
- nop.i 0
-}
-{ .mfb
- nop.m 0
-(p6) fma.d.s0 f8 = f8, f1, f0 // Result if x natval, nan, inf, 0
-(p6) br.ret.spnt b0 // Exit if x natval, nan, inf, 0
-}
-;;
-
-{ .mmi
- and rExp = rSignexp, rExpMask // Get biased exponent
-;;
- cmp.ge p7,p6 = rExp, rBigexp // Is |x| >= 2^52?
- nop.i 0
-}
-;;
-
-{ .mfi
- nop.m 0
-(p6) fma.d.s0 f8 = fPreResult, f1, fAdj // Result if !int, |x| < 2^52
- nop.i 0
-}
-{ .mfi
- nop.m 0
-(p7) fma.d.s0 f8 = fNormX, f1, f0 // Result, if |x| >= 2^52
- nop.i 0
-}
-;;
-
-{ .mfi
- nop.m 0
-(p6) fcmp.eq.unc.s1 p8, p9 = fPreResult, fNormX // Is trunc(x) = x ?
- nop.i 0
-}
-;;
-
-{ .mfi
- nop.m 0
-(p9) fmpy.s0 fTmp = fTmp, fTmp // Dummy to set inexact
- nop.i 0
-}
-{ .mfb
- nop.m 0
-(p8) fma.d.s0 f8 = fNormX, f1, f0 // If x int, result normalized x
- br.ret.sptk b0 // Exit main path, 0 < |x| < 2^52
-}
-;;
-
-
-FLOOR_UNORM:
-// Here if x unorm
-{ .mfb
- getf.exp rSignexp = fNormX // Get signexp, recompute if unorm
- fcmp.eq.s0 p7,p0 = f8, f0 // Dummy op to set denormal flag
- br.cond.sptk FLOOR_COMMON // Return to main path
-}
-;;
-
-GLOBAL_IEEE754_END(floor)