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| author | Torbjorn Granlund <tg@gmplib.org> | 2021-11-14 15:33:53 +0100 |
|---|---|---|
| committer | Torbjorn Granlund <tg@gmplib.org> | 2021-11-14 15:33:53 +0100 |
| commit | 8bd635b865326ea7392e46c665594508c9ab973d (patch) | |
| tree | 6ae500aa8f4e7c17e210436e93a2208791bc620d /mpn | |
| parent | 1a499c7ccd1ad85b4b92b76aa0bed5f572bd148d (diff) | |
| download | gmp-8bd635b865326ea7392e46c665594508c9ab973d.tar.gz | |
Accept 4th CMPCY operand, allowing for 2 c/l mpn_sub_n (mpn_add_n cannot beat 3 c/l with RISC V's ISA).
Diffstat (limited to 'mpn')
| -rw-r--r-- | mpn/riscv/64/aors_n.asm | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/mpn/riscv/64/aors_n.asm b/mpn/riscv/64/aors_n.asm index 6e38083c8..f3ec4ce59 100644 --- a/mpn/riscv/64/aors_n.asm +++ b/mpn/riscv/64/aors_n.asm @@ -43,7 +43,7 @@ ifdef(`OPERATION_add_n',` ') ifdef(`OPERATION_sub_n',` define(`ADDSUB', `sub') - define(`CMPCY', `sltu $1, $3, $2') + define(`CMPCY', `sltu $1, $3, $4') define(`func', `mpn_sub_n') ') @@ -66,9 +66,9 @@ L(top): ld a4, 0(up) addi n, n, -2 C bookkeeping addi up, up, 16 C bookkeeping ADDSUB t0, a4, a6 - CMPCY( t2, t0, a4) + CMPCY( t2, t0, a4, a6) ADDSUB t4, t0, t6 C cycle 3, 9, ... - CMPCY( t3, t4, t0) C cycle 4, 10, ... + CMPCY( t3, t4, t0, t6) C cycle 4, 10, ... sd t4, 0(rp) add t6, t2, t3 C cycle 5, 11, ... L(mid): ld a5, -8(up) @@ -76,9 +76,9 @@ L(mid): ld a5, -8(up) addi vp, vp, 16 C bookkeeping addi rp, rp, 16 C bookkeeping ADDSUB t1, a5, a7 - CMPCY( t2, t1, a5) + CMPCY( t2, t1, a5, a7) ADDSUB t4, t1, t6 C cycle 0, 6, ... - CMPCY( t3, t4, t1) C cycle 1, 7, ... + CMPCY( t3, t4, t1, t6) C cycle 1, 7, ... sd t4, -8(rp) add t6, t2, t3 C cycle 2, 8, ... bne n, x0, L(top) C bookkeeping |