4d37c8aa01
2004-12-22 Steven Munroe <sjmunroe@us.ibm.com> * math/libm-test.inc (rint_test_tonearest): New test. (rint_test_towardzero): New test. (rint_test_downward): New test. (rint_test_upward): New test. * sysdeps/powerpc/powerpc32/fpu/s_ceil.S: Fix -0.0 case. Remove redundant const values. * sysdeps/powerpc/powerpc32/fpu/s_ceilf.S: Fix -0.0 case. Remove redundant const values. Use float const. * sysdeps/powerpc/powerpc32/fpu/s_floor.S: Fix -0.0 case. * sysdeps/powerpc/powerpc32/fpu/s_floorf.S: Fix -0.0 case. Use float const. * sysdeps/powerpc/powerpc32/fpu/s_rint.S: Fix -0.0 case. * sysdeps/powerpc/powerpc32/fpu/s_rintf.S: Fix -0.0 case. Use float const. * sysdeps/powerpc/powerpc32/fpu/s_round.S: Fix -0.0 case. Remove redundant const values. * sysdeps/powerpc/powerpc32/fpu/s_roundf.S: Fix -0.0 case. Remove redundant const values. Use float const. * sysdeps/powerpc/powerpc32/fpu/s_trunc.S: Fix -0.0 case. Remove redundant const values. * sysdeps/powerpc/powerpc32/fpu/s_truncf.S: Fix -0.0 case. Remove redundant const values. Use float const. * sysdeps/powerpc/powerpc64/fpu/s_ceil.S: Use EALIGN for Quadword alignment. Fix -0.0 case. Remove redundant const values. * sysdeps/powerpc/powerpc64/fpu/s_ceilf.S: Use EALIGN for Quadword alignment. Fix -0.0 case. Remove redundant const values. Use float const. * sysdeps/powerpc/powerpc64/fpu/s_floor.S: Use EALIGN for Quadword alignment. Fix -0.0 case. * sysdeps/powerpc/powerpc64/fpu/s_floorf.S: Use EALIGN for Quadword alignment. Fix -0.0 case. Use float const. * sysdeps/powerpc/powerpc64/fpu/s_rint.S: Use EALIGN for Quadword alignment. Fix -0.0 case. * sysdeps/powerpc/powerpc64/fpu/s_rintf.S: Use EALIGN for Quadword alignment. Fix -0.0 case. Use float const. * sysdeps/powerpc/powerpc64/fpu/s_round.S: Use EALIGN for Quadword alignment. Fix -0.0 case. Remove redundant const values. * sysdeps/powerpc/powerpc64/fpu/s_roundf.S: Use EALIGN for Quadword alignment. Fix -0.0 case. Remove redundant const values. Use float const. * sysdeps/powerpc/powerpc64/fpu/s_trunc.S: Use EALIGN for Quadword alignment. Fix -0.0 case. * sysdeps/powerpc/powerpc64/fpu/s_truncf.S: Use EALIGN for Quadword alignment. Fix -0.0 case. Remove redundant const values. Use float const.
64 lines
2.1 KiB
ArmAsm
64 lines
2.1 KiB
ArmAsm
/* truncf function. PowerPC64 version.
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Copyright (C) 2004 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <sysdep.h>
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.section ".toc","aw"
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.LC0: /* 2**23 */
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.tc FD_4b000000_0[TC],0x4b00000000000000
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.section ".text"
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/* float [fp1] truncf (float x [fp1])
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IEEE 1003.1 trunc function. IEEE specifies "trunc to the integer
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value, in floating format, nearest to but no larger in magnitude
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then the argument."
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We set "round toward Zero" mode and trunc by adding +-2**23 then
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subtracting +-2**23. */
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EALIGN (__truncf, 4, 0)
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CALL_MCOUNT 0
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mffs fp11 /* Save current FPU rounding mode. */
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lfs fp13,.LC0@toc(2)
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fabs fp0,fp1
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fsubs fp12,fp13,fp13 /* generate 0.0 */
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fcmpu cr7,fp0,fp13 /* if (fabs(x) > TWO23) */
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fcmpu cr6,fp1,fp12 /* if (x > 0.0) */
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bnllr- cr7
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mtfsfi 7,1 /* Set rounding toward 0 mode. */
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ble- cr6,.L4
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fadds fp1,fp1,fp13 /* x+= TWO23; */
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fsubs fp1,fp1,fp13 /* x-= TWO23; */
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fabs fp1,fp1 /* if (x == 0.0) */
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/* x = 0.0; */
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mtfsf 0x01,fp11 /* restore previous truncing mode. */
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blr
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.L4:
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bge- cr6,.L9 /* if (x < 0.0) */
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fsubs fp1,fp1,fp13 /* x-= TWO23; */
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fadds fp1,fp1,fp13 /* x+= TWO23; */
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fnabs fp1,fp1 /* if (x == 0.0) */
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/* x = -0.0; */
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.L9:
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mtfsf 0x01,fp11 /* restore previous rounding mode. */
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blr
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END (__truncf)
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weak_alias (__truncf, truncf)
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