diff options
Diffstat (limited to 'sysdeps/alpha/alphaev5/rshift.s')
| -rw-r--r-- | sysdeps/alpha/alphaev5/rshift.s | 28 |
1 files changed, 13 insertions, 15 deletions
diff --git a/sysdeps/alpha/alphaev5/rshift.s b/sysdeps/alpha/alphaev5/rshift.s index 1da9960..d20dde3 100644 --- a/sysdeps/alpha/alphaev5/rshift.s +++ b/sysdeps/alpha/alphaev5/rshift.s @@ -25,7 +25,7 @@ # size r18 # cnt r19 - # This code runs at 4.25 cycles/limb on the EV5. + # This code runs at 3.25 cycles/limb on the EV5. .set noreorder .set noat @@ -42,11 +42,11 @@ __mpn_rshift: and $18,4-1,$28 # number of limbs in first loop sll $4,$20,$0 # compute function result - beq $28,L0 + beq $28,.L0 subq $18,$28,$18 .align 3 -Loop0: ldq $3,8($17) +.Loop0: ldq $3,8($17) addq $16,8,$16 srl $4,$19,$5 addq $17,8,$17 @@ -55,17 +55,17 @@ Loop0: ldq $3,8($17) or $3,$3,$4 or $5,$6,$8 stq $8,-8($16) - bne $28,Loop0 + bne $28,.Loop0 -L0: srl $4,$19,$24 - beq $18,Lend +.L0: srl $4,$19,$24 + beq $18,.Lend # warm up phase 1 ldq $1,8($17) subq $18,4,$18 ldq $2,16($17) ldq $3,24($17) ldq $4,32($17) - beq $18,Lcool1 + beq $18,.Lend1 # warm up phase 2 sll $1,$20,$7 srl $1,$19,$21 @@ -82,10 +82,10 @@ L0: srl $4,$19,$24 srl $4,$19,$24 ldq $4,64($17) subq $18,4,$18 - beq $18,Lcool2 + beq $18,.Lend2 .align 4 # main loop -Loop: stq $7,0($16) +.Loop: stq $7,0($16) or $5,$22,$5 stq $8,8($16) or $6,$23,$6 @@ -116,11 +116,9 @@ Loop: stq $7,0($16) ldq $4,96($17) addq $17,32,$17 - bne $18,Loop - unop - unop + bne $18,.Loop # cool down phase 2/1 -Lcool2: stq $7,0($16) +.Lend2: stq $7,0($16) or $5,$22,$5 stq $8,8($16) or $6,$23,$6 @@ -148,7 +146,7 @@ Lcool2: stq $7,0($16) ret $31,($26),1 # cool down phase 1/1 -Lcool1: sll $1,$20,$7 +.Lend1: sll $1,$20,$7 srl $1,$19,$21 sll $2,$20,$8 srl $2,$19,$22 @@ -168,6 +166,6 @@ Lcool1: sll $1,$20,$7 stq $24,32($16) ret $31,($26),1 -Lend: stq $24,0($16) +.Lend: stq $24,0($16) ret $31,($26),1 .end __mpn_rshift |