2013-11-22 12:38:03 +00:00
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/* PowerPC64 __mpn_mul_1 -- Multiply a limb vector with a limb and store
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the result in a second limb vector.
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2019-01-01 00:11:28 +00:00
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Copyright (C) 1999-2019 Free Software Foundation, Inc.
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2013-11-22 12:38:03 +00:00
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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, see
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<http://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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#define RP r3
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#define UP r4
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#define N r5
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#define VL r6
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2018-12-12 12:41:52 +00:00
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#define R26SAVE (-48)
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#define R27SAVE (-40)
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PowerPC64 ENTRY_TOCLESS
A number of functions in the sysdeps/powerpc/powerpc64/ tree don't use
or change r2, yet declare a global entry that sets up r2. This patch
fixes that problem, and consolidates the ENTRY and EALIGN macros.
* sysdeps/powerpc/powerpc64/sysdep.h: Formatting.
(NOPS, ENTRY_3): New macros.
(ENTRY): Rewrite.
(ENTRY_TOCLESS): Define.
(EALIGN, EALIGN_W_0, EALIGN_W_1, EALIGN_W_2, EALIGN_W_4, EALIGN_W_5,
EALIGN_W_6, EALIGN_W_7, EALIGN_W_8): Delete.
* sysdeps/powerpc/powerpc64/a2/memcpy.S: Replace EALIGN with ENTRY.
* sysdeps/powerpc/powerpc64/dl-trampoline.S: Likewise.
* sysdeps/powerpc/powerpc64/fpu/s_ceil.S: Likewise.
* sysdeps/powerpc/powerpc64/fpu/s_ceilf.S: Likewise.
* sysdeps/powerpc/powerpc64/fpu/s_floor.S: Likewise.
* sysdeps/powerpc/powerpc64/fpu/s_floorf.S: Likewise.
* sysdeps/powerpc/powerpc64/fpu/s_nearbyint.S: Likewise.
* sysdeps/powerpc/powerpc64/fpu/s_nearbyintf.S: Likewise.
* sysdeps/powerpc/powerpc64/fpu/s_rint.S: Likewise.
* sysdeps/powerpc/powerpc64/fpu/s_rintf.S: Likewise.
* sysdeps/powerpc/powerpc64/fpu/s_round.S: Likewise.
* sysdeps/powerpc/powerpc64/fpu/s_roundf.S: Likewise.
* sysdeps/powerpc/powerpc64/fpu/s_trunc.S: Likewise.
* sysdeps/powerpc/powerpc64/fpu/s_truncf.S: Likewise.
* sysdeps/powerpc/powerpc64/memset.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/fpu/s_finite.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/fpu/s_isinf.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/fpu/s_isnan.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/strstr.S: Likewise.
* sysdeps/powerpc/powerpc64/power8/fpu/e_expf.S: Likewise.
* sysdeps/powerpc/powerpc64/power8/fpu/s_cosf.S: Likewise.
* sysdeps/powerpc/powerpc64/power8/fpu/s_sinf.S: Likewise.
* sysdeps/powerpc/powerpc64/power8/strcasestr.S: Likewise.
* sysdeps/powerpc/powerpc64/addmul_1.S: Use ENTRY_TOCLESS.
* sysdeps/powerpc/powerpc64/cell/memcpy.S: Likewise.
* sysdeps/powerpc/powerpc64/fpu/s_copysign.S: Likewise.
* sysdeps/powerpc/powerpc64/fpu/s_copysignl.S: Likewise.
* sysdeps/powerpc/powerpc64/fpu/s_fabsl.S: Likewise.
* sysdeps/powerpc/powerpc64/fpu/s_isnan.S: Likewise.
* sysdeps/powerpc/powerpc64/fpu/s_llrint.S: Likewise.
* sysdeps/powerpc/powerpc64/fpu/s_llrintf.S: Likewise.
* sysdeps/powerpc/powerpc64/lshift.S: Likewise.
* sysdeps/powerpc/powerpc64/memcpy.S: Likewise.
* sysdeps/powerpc/powerpc64/mul_1.S: Likewise.
* sysdeps/powerpc/powerpc64/power4/memcmp.S: Likewise.
* sysdeps/powerpc/powerpc64/power4/memcpy.S: Likewise.
* sysdeps/powerpc/powerpc64/power4/memset.S: Likewise.
* sysdeps/powerpc/powerpc64/power4/strncmp.S: Likewise.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_ceil.S: Likewise.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_ceilf.S: Likewise.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_floor.S: Likewise.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_floorf.S: Likewise.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_llround.S: Likewise.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_round.S: Likewise.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_roundf.S: Likewise.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_trunc.S: Likewise.
* sysdeps/powerpc/powerpc64/power5+/fpu/s_truncf.S: Likewise.
* sysdeps/powerpc/powerpc64/power5/fpu/s_isnan.S: Likewise.
* sysdeps/powerpc/powerpc64/power6/fpu/s_copysign.S: Likewise.
* sysdeps/powerpc/powerpc64/power6/fpu/s_isnan.S: Likewise.
* sysdeps/powerpc/powerpc64/power6/memcpy.S: Likewise.
* sysdeps/powerpc/powerpc64/power6/memset.S: Likewise.
* sysdeps/powerpc/powerpc64/power6x/fpu/s_isnan.S: Likewise.
* sysdeps/powerpc/powerpc64/power6x/fpu/s_llrint.S: Likewise.
* sysdeps/powerpc/powerpc64/power6x/fpu/s_llround.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/add_n.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/memchr.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/memcmp.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/memcpy.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/memmove.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/mempcpy.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/memrchr.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/memset.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/rawmemchr.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/strcasecmp.S (strcasecmp_l):
Likewise.
* sysdeps/powerpc/powerpc64/power7/strchr.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/strchrnul.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/strcmp.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/strlen.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/strncmp.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/strncpy.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/strnlen.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/strrchr.S: Likewise.
* sysdeps/powerpc/powerpc64/power8/fpu/s_finite.S: Likewise.
* sysdeps/powerpc/powerpc64/power8/fpu/s_isinf.S: Likewise.
* sysdeps/powerpc/powerpc64/power8/fpu/s_isnan.S: Likewise.
* sysdeps/powerpc/powerpc64/power8/fpu/s_llrint.S: Likewise.
* sysdeps/powerpc/powerpc64/power8/fpu/s_llround.S: Likewise.
* sysdeps/powerpc/powerpc64/power8/memcmp.S: Likewise.
* sysdeps/powerpc/powerpc64/power8/memset.S: Likewise.
* sysdeps/powerpc/powerpc64/power8/strchr.S: Likewise.
* sysdeps/powerpc/powerpc64/power8/strcmp.S: Likewise.
* sysdeps/powerpc/powerpc64/power8/strcpy.S: Likewise.
* sysdeps/powerpc/powerpc64/power8/strlen.S: Likewise.
* sysdeps/powerpc/powerpc64/power8/strncmp.S: Likewise.
* sysdeps/powerpc/powerpc64/power8/strncpy.S: Likewise.
* sysdeps/powerpc/powerpc64/power8/strnlen.S: Likewise.
* sysdeps/powerpc/powerpc64/power8/strrchr.S: Likewise.
* sysdeps/powerpc/powerpc64/power8/strspn.S: Likewise.
* sysdeps/powerpc/powerpc64/power9/strcmp.S: Likewise.
* sysdeps/powerpc/powerpc64/power9/strncmp.S: Likewise.
* sysdeps/powerpc/powerpc64/strchr.S: Likewise.
* sysdeps/powerpc/powerpc64/strcmp.S: Likewise.
* sysdeps/powerpc/powerpc64/strlen.S: Likewise.
* sysdeps/powerpc/powerpc64/strncmp.S: Likewise.
* sysdeps/powerpc/powerpc64/ppc-mcount.S: Store LR earlier. Don't
add nop when SHARED.
* sysdeps/powerpc/powerpc64/start.S: Fix comment.
* sysdeps/powerpc/powerpc64/multiarch/strrchr-power8.S (ENTRY): Don't
define.
(ENTRY_TOCLESS): Define.
* sysdeps/powerpc/powerpc32/sysdep.h (ENTRY_TOCLESS): Define.
* sysdeps/powerpc/fpu/s_fma.S: Use ENTRY_TOCLESS.
* sysdeps/powerpc/fpu/s_fmaf.S: Likewise.
2017-06-14 01:15:50 +00:00
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ENTRY_TOCLESS (__mpn_mul_1, 5)
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2018-12-12 12:41:52 +00:00
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std r27, R27SAVE(r1)
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std r26, R26SAVE(r1)
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cfi_offset(r27, R27SAVE)
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cfi_offset(r26, R26SAVE)
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2013-11-22 12:38:03 +00:00
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li r12, 0
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ld r26, 0(UP)
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rldicl. r0, N, 0, 62
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cmpdi VL, r0, 2
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addic N, N, RP
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srdi N, N, 2
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mtctr N
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beq cr0, L(b00)
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blt cr6, L(b01)
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beq cr6, L(b10)
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L(b11): mr cr7, r12
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mulld cr0, r26, VL
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mulhdu r12, r26, VL
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addi UP, UP, 8
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addc r0, r0, r7
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std r0, 0(RP)
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addi RP, RP, 8
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b L(fic)
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L(b00): ld r27, r8(UP)
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addi UP, UP, 16
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mulld r0, r26, VL
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mulhdu N, r26, VL
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mulld r7, r27, VL
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mulhdu r8, r27, VL
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addc r0, r0, r12
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adde r7, r7, N
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addze r12, r8
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std r0, 0(RP)
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std r7, 8(RP)
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addi RP, RP, 16
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b L(fic)
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nop
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L(b01): bdnz L(gt1)
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mulld r0, r26, VL
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mulhdu r8, r26, VL
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addc r0, r0, r12
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std r0, 0(RP)
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b L(ret)
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L(gt1): ld r27, 8(UP)
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nop
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mulld r0, r26, VL
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mulhdu N, r26, VL
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ld r26, 16(UP)
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mulld r7, r27, VL
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mulhdu r8, r27, VL
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mulld r9, r26, VL
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mulhdu r10, r26, VL
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addc r0, r0, r12
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adde r7, r7, N
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adde r9, r9, r8
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addze r12, r10
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std r0, 0(RP)
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std r7, 8(RP)
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std r9, 16(RP)
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addi UP, UP, 24
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addi RP, RP, 24
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b L(fic)
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nop
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L(fic): ld r26, 0(UP)
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L(b10): ld r27, 8(UP)
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addi UP, UP, 16
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bdz L(end)
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L(top): mulld r0, r26, VL
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mulhdu N, r26, VL
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mulld r7, r27, VL
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mulhdu r8, r27, VL
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ld r26, 0(UP)
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ld r27, 8(UP)
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adde r0, r0, r12
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adde r7, r7, N
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mulld r9, r26, VL
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mulhdu r10, r26, VL
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mulld r11, r27, VL
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mulhdu r12, r27, VL
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ld r26, 16(UP)
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ld r27, 24(UP)
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std r0, 0(RP)
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adde r9, r9, r8
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std r7, 8(RP)
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adde r11, r11, r10
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std r9, 16(RP)
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addi UP, UP, 32
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std r11, 24(RP)
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addi RP, RP, 32
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bdnz L(top)
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L(end): mulld r0, r26, VL
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mulhdu N, r26, VL
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mulld r7, r27, VL
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mulhdu r8, r27, VL
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adde r0, r0, r12
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adde r7, r7, N
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std r0, 0(RP)
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std r7, 8(RP)
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L(ret): addze RP, r8
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2018-12-12 12:41:52 +00:00
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ld r27, R27SAVE(r1)
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ld r26, R26SAVE(r1)
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2013-11-22 12:38:03 +00:00
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blr
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END(__mpn_mul_1)
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