2014-12-19 Steve Ellcey <sellcey@imgtec.com>
* sysdeps/mips/addmul_1.S (__mpn_addmul_1): Use mulu/muhu instead of multu on MIPSr6. * sysdeps/mips/mul_1.S (__mpn_mul_1): Ditto. * sysdeps/mips/submul_1.S (__mpn_submul_1): Ditto. * sysdeps/mips/mips64/addmul_1.S (__mpn_addmul_1): Ditto. * sysdeps/mips/mips64/mul_1.S (__mpn_mul_1): Ditto. * sysdeps/mips/mips64/submul_1.S (__mpn_submul_1): Ditto.
This commit is contained in:
Steve Ellcey
parent
04d5556197
commit
8b2800c0fb
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@ -42,7 +42,12 @@ ENTRY (__mpn_addmul_1)
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/* warm up phase 1 */
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addiu $5,$5,4
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#if __mips_isa_rev < 6
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multu $8,$7
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#else
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mulu $11,$8,$7
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muhu $12,$8,$7
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#endif
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addiu $6,$6,-1
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beq $6,$0,L(LC0)
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@ -53,11 +58,21 @@ ENTRY (__mpn_addmul_1)
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lw $8,0($5) /* load new s1 limb as early as possible */
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L(Loop): lw $10,0($4)
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#if __mips_isa_rev < 6
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mflo $3
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mfhi $9
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#else
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move $3,$11
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move $9,$12
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#endif
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addiu $5,$5,4
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addu $3,$3,$2 /* add old carry limb to low product limb */
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#if __mips_isa_rev < 6
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multu $8,$7
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#else
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mulu $11,$8,$7
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muhu $12,$8,$7
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#endif
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lw $8,0($5) /* load new s1 limb as early as possible */
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addiu $6,$6,-1 /* decrement loop counter */
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sltu $2,$3,$2 /* carry from previous addition -> $2 */
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@ -71,11 +86,21 @@ L(Loop): lw $10,0($4)
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/* cool down phase 1 */
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L(LC1): lw $10,0($4)
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#if __mips_isa_rev < 6
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mflo $3
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mfhi $9
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#else
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move $3,$11
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move $9,$12
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#endif
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addu $3,$3,$2
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sltu $2,$3,$2
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#if __mips_isa_rev < 6
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multu $8,$7
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#else
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mulu $11,$8,$7
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muhu $12,$8,$7
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#endif
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addu $3,$10,$3
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sltu $10,$3,$10
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addu $2,$2,$10
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@ -85,8 +110,13 @@ L(LC1): lw $10,0($4)
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/* cool down phase 0 */
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L(LC0): lw $10,0($4)
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#if __mips_isa_rev < 6
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mflo $3
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mfhi $9
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#else
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move $3,$11
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move $9,$12
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#endif
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addu $3,$3,$2
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sltu $2,$3,$2
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addu $3,$10,$3
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@ -44,7 +44,12 @@ ENTRY (__mpn_addmul_1)
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# warm up phase 1
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daddiu $5,$5,8
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#if __mips_isa_rev < 6
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dmultu $8,$7
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#else
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dmulu $11,$8,$7
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dmuhu $12,$8,$7
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#endif
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daddiu $6,$6,-1
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beq $6,$0,L(LC0)
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@ -55,11 +60,21 @@ ENTRY (__mpn_addmul_1)
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ld $8,0($5) # load new s1 limb as early as possible
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L(Loop): ld $10,0($4)
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#if __mips_isa_rev < 6
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mflo $3
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mfhi $9
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#else
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move $3,$11
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move $9,$12
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#endif
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daddiu $5,$5,8
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daddu $3,$3,$2 # add old carry limb to low product limb
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#if __mips_isa_rev < 6
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dmultu $8,$7
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#else
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dmulu $11,$8,$7
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dmuhu $12,$8,$7
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#endif
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ld $8,0($5) # load new s1 limb as early as possible
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daddiu $6,$6,-1 # decrement loop counter
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sltu $2,$3,$2 # carry from previous addition -> $2
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@ -73,11 +88,21 @@ L(Loop): ld $10,0($4)
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# cool down phase 1
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L(LC1): ld $10,0($4)
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#if __mips_isa_rev < 6
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mflo $3
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mfhi $9
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#else
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move $3,$11
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move $9,$12
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#endif
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daddu $3,$3,$2
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sltu $2,$3,$2
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#if __mips_isa_rev < 6
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dmultu $8,$7
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#else
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dmulu $11,$8,$7
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dmuhu $12,$8,$7
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#endif
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daddu $3,$10,$3
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sltu $10,$3,$10
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daddu $2,$2,$10
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@ -87,8 +112,13 @@ L(LC1): ld $10,0($4)
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# cool down phase 0
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L(LC0): ld $10,0($4)
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#if __mips_isa_rev < 6
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mflo $3
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mfhi $9
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#else
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move $3,$11
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move $9,$12
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#endif
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daddu $3,$3,$2
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sltu $2,$3,$2
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daddu $3,$10,$3
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@ -45,7 +45,12 @@ ENTRY (__mpn_mul_1)
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# warm up phase 1
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daddiu $5,$5,8
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#if __mips_isa_rev < 6
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dmultu $8,$7
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#else
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dmulu $11,$8,$7
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dmuhu $12,$8,$7
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#endif
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daddiu $6,$6,-1
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beq $6,$0,L(LC0)
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@ -55,11 +60,21 @@ ENTRY (__mpn_mul_1)
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beq $6,$0,L(LC1)
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ld $8,0($5) # load new s1 limb as early as possible
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#if __mips_isa_rev < 6
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L(Loop): mflo $10
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mfhi $9
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#else
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L(Loop): move $10,$11
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move $9,$12
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#endif
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daddiu $5,$5,8
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daddu $10,$10,$2 # add old carry limb to low product limb
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#if __mips_isa_rev < 6
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dmultu $8,$7
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#else
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dmulu $11,$8,$7
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dmuhu $12,$8,$7
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#endif
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ld $8,0($5) # load new s1 limb as early as possible
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daddiu $6,$6,-1 # decrement loop counter
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sltu $2,$10,$2 # carry from previous addition -> $2
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@ -69,18 +84,33 @@ L(Loop): mflo $10
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daddu $2,$9,$2 # add high product limb and carry from addition
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# cool down phase 1
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#if __mips_isa_rev < 6
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L(LC1): mflo $10
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mfhi $9
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#else
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L(LC1): move $10,$11
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move $9,$12
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#endif
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daddu $10,$10,$2
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sltu $2,$10,$2
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#if __mips_isa_rev < 6
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dmultu $8,$7
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#else
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dmulu $11,$8,$7
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dmuhu $12,$8,$7
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#endif
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sd $10,0($4)
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daddiu $4,$4,8
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daddu $2,$9,$2 # add high product limb and carry from addition
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# cool down phase 0
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#if __mips_isa_rev < 6
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L(LC0): mflo $10
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mfhi $9
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#else
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L(LC0): move $10,$11
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move $9,$12
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#endif
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daddu $10,$10,$2
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sltu $2,$10,$2
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sd $10,0($4)
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@ -45,7 +45,12 @@ ENTRY (__mpn_submul_1)
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# warm up phase 1
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daddiu $5,$5,8
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#if __mips_isa_rev < 6
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dmultu $8,$7
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#else
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dmulu $11,$8,$7
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dmuhu $12,$8,$7
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#endif
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daddiu $6,$6,-1
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beq $6,$0,L(LC0)
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@ -56,11 +61,21 @@ ENTRY (__mpn_submul_1)
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ld $8,0($5) # load new s1 limb as early as possible
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L(Loop): ld $10,0($4)
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#if __mips_isa_rev < 6
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mflo $3
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mfhi $9
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#else
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move $3,$11
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move $9,$12
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#endif
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daddiu $5,$5,8
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daddu $3,$3,$2 # add old carry limb to low product limb
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#if __mips_isa_rev < 6
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dmultu $8,$7
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#else
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dmulu $11,$8,$7
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dmuhu $12,$8,$7
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#endif
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ld $8,0($5) # load new s1 limb as early as possible
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daddiu $6,$6,-1 # decrement loop counter
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sltu $2,$3,$2 # carry from previous addition -> $2
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@ -74,11 +89,21 @@ L(Loop): ld $10,0($4)
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# cool down phase 1
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L(LC1): ld $10,0($4)
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#if __mips_isa_rev < 6
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mflo $3
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mfhi $9
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#else
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move $3,$11
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move $9,$12
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#endif
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daddu $3,$3,$2
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sltu $2,$3,$2
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#if __mips_isa_rev < 6
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dmultu $8,$7
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#else
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dmulu $11,$8,$7
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dmuhu $12,$8,$7
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#endif
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dsubu $3,$10,$3
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sgtu $10,$3,$10
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daddu $2,$2,$10
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@ -88,8 +113,13 @@ L(LC1): ld $10,0($4)
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# cool down phase 0
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L(LC0): ld $10,0($4)
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#if __mips_isa_rev < 6
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mflo $3
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mfhi $9
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#else
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move $3,$11
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move $9,$12
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#endif
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daddu $3,$3,$2
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sltu $2,$3,$2
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dsubu $3,$10,$3
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@ -42,7 +42,12 @@ ENTRY (__mpn_mul_1)
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/* warm up phase 1 */
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addiu $5,$5,4
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#if __mips_isa_rev < 6
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multu $8,$7
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#else
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mulu $11,$8,$7
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muhu $12,$8,$7
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#endif
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addiu $6,$6,-1
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beq $6,$0,L(LC0)
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@ -52,11 +57,22 @@ ENTRY (__mpn_mul_1)
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beq $6,$0,L(LC1)
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lw $8,0($5) /* load new s1 limb as early as possible */
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#if __mips_isa_rev < 6
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L(Loop): mflo $10
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mfhi $9
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#else
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L(Loop): move $10,$11
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move $9,$12
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#endif
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addiu $5,$5,4
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addu $10,$10,$2 /* add old carry limb to low product limb */
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#if __mips_isa_rev < 6
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multu $8,$7
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#else
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mulu $11,$8,$7
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muhu $12,$8,$7
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#endif
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lw $8,0($5) /* load new s1 limb as early as possible */
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addiu $6,$6,-1 /* decrement loop counter */
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sltu $2,$10,$2 /* carry from previous addition -> $2 */
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@ -66,18 +82,33 @@ L(Loop): mflo $10
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addu $2,$9,$2 /* add high product limb and carry from addition */
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/* cool down phase 1 */
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#if __mips_isa_rev < 6
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L(LC1): mflo $10
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mfhi $9
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#else
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L(LC1): move $10,$11
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move $9,$12
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#endif
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addu $10,$10,$2
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sltu $2,$10,$2
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#if __mips_isa_rev < 6
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multu $8,$7
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#else
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mulu $11,$8,$7
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muhu $12,$8,$7
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#endif
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sw $10,0($4)
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addiu $4,$4,4
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addu $2,$9,$2 /* add high product limb and carry from addition */
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/* cool down phase 0 */
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#if __mips_isa_rev < 6
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L(LC0): mflo $10
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mfhi $9
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#else
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L(LC0): move $10,$11
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move $9,$12
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#endif
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addu $10,$10,$2
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sltu $2,$10,$2
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sw $10,0($4)
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@ -42,7 +42,13 @@ ENTRY (__mpn_submul_1)
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/* warm up phase 1 */
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addiu $5,$5,4
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#if __mips_isa_rev < 6
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multu $8,$7
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#else
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mulu $11,$8,$7
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muhu $12,$8,$7
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#endif
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addiu $6,$6,-1
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beq $6,$0,L(LC0)
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@ -53,11 +59,21 @@ ENTRY (__mpn_submul_1)
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lw $8,0($5) /* load new s1 limb as early as possible */
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L(Loop): lw $10,0($4)
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#if __mips_isa_rev < 6
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mflo $3
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mfhi $9
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#else
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move $3,$11
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move $9,$12
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#endif
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addiu $5,$5,4
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addu $3,$3,$2 /* add old carry limb to low product limb */
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#if __mips_isa_rev < 6
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multu $8,$7
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#else
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mulu $11,$8,$7
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muhu $12,$8,$7
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#endif
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lw $8,0($5) /* load new s1 limb as early as possible */
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addiu $6,$6,-1 /* decrement loop counter */
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sltu $2,$3,$2 /* carry from previous addition -> $2 */
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@ -71,11 +87,21 @@ L(Loop): lw $10,0($4)
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/* cool down phase 1 */
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L(LC1): lw $10,0($4)
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#if __mips_isa_rev < 6
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mflo $3
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mfhi $9
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#else
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move $3,$11
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move $9,$12
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#endif
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addu $3,$3,$2
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sltu $2,$3,$2
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#if __mips_isa_rev < 6
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multu $8,$7
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#else
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mulu $11,$8,$7
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muhu $12,$8,$7
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#endif
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subu $3,$10,$3
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sgtu $10,$3,$10
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addu $2,$2,$10
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@ -85,8 +111,13 @@ L(LC1): lw $10,0($4)
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/* cool down phase 0 */
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L(LC0): lw $10,0($4)
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#if __mips_isa_rev < 6
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mflo $3
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mfhi $9
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#else
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move $3,$11
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move $9,$12
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#endif
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addu $3,$3,$2
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sltu $2,$3,$2
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subu $3,$10,$3
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