diff options
Diffstat (limited to 'gmp/mpn/arm/v7a/cora15/neon/copyd.asm')
| -rw-r--r-- | gmp/mpn/arm/v7a/cora15/neon/copyd.asm | 110 |
1 files changed, 0 insertions, 110 deletions
diff --git a/gmp/mpn/arm/v7a/cora15/neon/copyd.asm b/gmp/mpn/arm/v7a/cora15/neon/copyd.asm deleted file mode 100644 index 98fe535def..0000000000 --- a/gmp/mpn/arm/v7a/cora15/neon/copyd.asm +++ /dev/null @@ -1,110 +0,0 @@ -dnl ARM Neon mpn_copyd optimised for A15. - -dnl Copyright 2013 Free Software Foundation, Inc. - -dnl This file is part of the GNU MP Library. -dnl -dnl The GNU MP Library is free software; you can redistribute it and/or modify -dnl it under the terms of either: -dnl -dnl * the GNU Lesser General Public License as published by the Free -dnl Software Foundation; either version 3 of the License, or (at your -dnl option) any later version. -dnl -dnl or -dnl -dnl * the GNU General Public License as published by the Free Software -dnl Foundation; either version 2 of the License, or (at your option) any -dnl later version. -dnl -dnl or both in parallel, as here. -dnl -dnl The GNU MP Library is distributed in the hope that it will be useful, but -dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -dnl for more details. -dnl -dnl You should have received copies of the GNU General Public License and the -dnl GNU Lesser General Public License along with the GNU MP Library. If not, -dnl see https://www.gnu.org/licenses/. - -include(`../config.m4') - -C cycles/limb -C StrongARM - -C XScale - -C Cortex-A7 ? -C Cortex-A8 ? -C Cortex-A9 1.75 slower than core register code -C Cortex-A15 0.52 - -define(`rp', `r0') -define(`up', `r1') -define(`n', `r2') - -ASM_START() -PROLOGUE(mpn_copyd) - add rp, rp, n, lsl #2 - add up, up, n, lsl #2 - - cmp n, #7 - ble L(bc) - -C Copy until rp is 128-bit aligned - tst rp, #4 - beq L(al1) - sub up, up, #4 - vld1.32 {d22[0]}, [up] - sub n, n, #1 - sub rp, rp, #4 - vst1.32 {d22[0]}, [rp] -L(al1): tst rp, #8 - beq L(al2) - sub up, up, #8 - vld1.32 {d22}, [up] - sub n, n, #2 - sub rp, rp, #8 - vst1.32 {d22}, [rp:64] -L(al2): sub up, up, #16 - vld1.32 {d26-d27}, [up] - subs n, n, #12 - sub rp, rp, #16 C offset rp for loop - blt L(end) - - sub up, up, #16 C offset up for loop - mov r12, #-16 - - ALIGN(16) -L(top): vld1.32 {d22-d23}, [up], r12 - vst1.32 {d26-d27}, [rp:128], r12 - vld1.32 {d26-d27}, [up], r12 - vst1.32 {d22-d23}, [rp:128], r12 - subs n, n, #8 - bge L(top) - - add up, up, #16 C undo up offset - C rp offset undoing folded -L(end): vst1.32 {d26-d27}, [rp:128] - -C Copy last 0-7 limbs. Note that rp is aligned after loop, but not when we -C arrive here via L(bc) -L(bc): tst n, #4 - beq L(tl1) - sub up, up, #16 - vld1.32 {d22-d23}, [up] - sub rp, rp, #16 - vst1.32 {d22-d23}, [rp] -L(tl1): tst n, #2 - beq L(tl2) - sub up, up, #8 - vld1.32 {d22}, [up] - sub rp, rp, #8 - vst1.32 {d22}, [rp] -L(tl2): tst n, #1 - beq L(tl3) - sub up, up, #4 - vld1.32 {d22[0]}, [up] - sub rp, rp, #4 - vst1.32 {d22[0]}, [rp] -L(tl3): bx lr -EPILOGUE() |