From 8b2800c0fb18f83d1ee8083d0a7ac15e0b011e73 Mon Sep 17 00:00:00 2001 From: Steve Ellcey Date: Fri, 19 Dec 2014 14:39:18 -0800 Subject: 2014-12-19 Steve Ellcey * 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. --- sysdeps/mips/mips64/addmul_1.S | 30 ++++++++++++++++++++++++++++++ sysdeps/mips/mips64/mul_1.S | 30 ++++++++++++++++++++++++++++++ sysdeps/mips/mips64/submul_1.S | 30 ++++++++++++++++++++++++++++++ 3 files changed, 90 insertions(+) (limited to 'sysdeps/mips/mips64') diff --git a/sysdeps/mips/mips64/addmul_1.S b/sysdeps/mips/mips64/addmul_1.S index 57edd4aa76..4f035f9851 100644 --- a/sysdeps/mips/mips64/addmul_1.S +++ b/sysdeps/mips/mips64/addmul_1.S @@ -44,7 +44,12 @@ ENTRY (__mpn_addmul_1) # warm up phase 1 daddiu $5,$5,8 +#if __mips_isa_rev < 6 dmultu $8,$7 +#else + dmulu $11,$8,$7 + dmuhu $12,$8,$7 +#endif daddiu $6,$6,-1 beq $6,$0,L(LC0) @@ -55,11 +60,21 @@ ENTRY (__mpn_addmul_1) ld $8,0($5) # load new s1 limb as early as possible L(Loop): ld $10,0($4) +#if __mips_isa_rev < 6 mflo $3 mfhi $9 +#else + move $3,$11 + move $9,$12 +#endif daddiu $5,$5,8 daddu $3,$3,$2 # add old carry limb to low product limb +#if __mips_isa_rev < 6 dmultu $8,$7 +#else + dmulu $11,$8,$7 + dmuhu $12,$8,$7 +#endif ld $8,0($5) # load new s1 limb as early as possible daddiu $6,$6,-1 # decrement loop counter sltu $2,$3,$2 # carry from previous addition -> $2 @@ -73,11 +88,21 @@ L(Loop): ld $10,0($4) # cool down phase 1 L(LC1): ld $10,0($4) +#if __mips_isa_rev < 6 mflo $3 mfhi $9 +#else + move $3,$11 + move $9,$12 +#endif daddu $3,$3,$2 sltu $2,$3,$2 +#if __mips_isa_rev < 6 dmultu $8,$7 +#else + dmulu $11,$8,$7 + dmuhu $12,$8,$7 +#endif daddu $3,$10,$3 sltu $10,$3,$10 daddu $2,$2,$10 @@ -87,8 +112,13 @@ L(LC1): ld $10,0($4) # cool down phase 0 L(LC0): ld $10,0($4) +#if __mips_isa_rev < 6 mflo $3 mfhi $9 +#else + move $3,$11 + move $9,$12 +#endif daddu $3,$3,$2 sltu $2,$3,$2 daddu $3,$10,$3 diff --git a/sysdeps/mips/mips64/mul_1.S b/sysdeps/mips/mips64/mul_1.S index a8d8078114..0e5b734653 100644 --- a/sysdeps/mips/mips64/mul_1.S +++ b/sysdeps/mips/mips64/mul_1.S @@ -45,7 +45,12 @@ ENTRY (__mpn_mul_1) # warm up phase 1 daddiu $5,$5,8 +#if __mips_isa_rev < 6 dmultu $8,$7 +#else + dmulu $11,$8,$7 + dmuhu $12,$8,$7 +#endif daddiu $6,$6,-1 beq $6,$0,L(LC0) @@ -55,11 +60,21 @@ ENTRY (__mpn_mul_1) beq $6,$0,L(LC1) ld $8,0($5) # load new s1 limb as early as possible +#if __mips_isa_rev < 6 L(Loop): mflo $10 mfhi $9 +#else +L(Loop): move $10,$11 + move $9,$12 +#endif daddiu $5,$5,8 daddu $10,$10,$2 # add old carry limb to low product limb +#if __mips_isa_rev < 6 dmultu $8,$7 +#else + dmulu $11,$8,$7 + dmuhu $12,$8,$7 +#endif ld $8,0($5) # load new s1 limb as early as possible daddiu $6,$6,-1 # decrement loop counter sltu $2,$10,$2 # carry from previous addition -> $2 @@ -69,18 +84,33 @@ L(Loop): mflo $10 daddu $2,$9,$2 # add high product limb and carry from addition # cool down phase 1 +#if __mips_isa_rev < 6 L(LC1): mflo $10 mfhi $9 +#else +L(LC1): move $10,$11 + move $9,$12 +#endif daddu $10,$10,$2 sltu $2,$10,$2 +#if __mips_isa_rev < 6 dmultu $8,$7 +#else + dmulu $11,$8,$7 + dmuhu $12,$8,$7 +#endif sd $10,0($4) daddiu $4,$4,8 daddu $2,$9,$2 # add high product limb and carry from addition # cool down phase 0 +#if __mips_isa_rev < 6 L(LC0): mflo $10 mfhi $9 +#else +L(LC0): move $10,$11 + move $9,$12 +#endif daddu $10,$10,$2 sltu $2,$10,$2 sd $10,0($4) diff --git a/sysdeps/mips/mips64/submul_1.S b/sysdeps/mips/mips64/submul_1.S index bf24123bde..84e9a91d00 100644 --- a/sysdeps/mips/mips64/submul_1.S +++ b/sysdeps/mips/mips64/submul_1.S @@ -45,7 +45,12 @@ ENTRY (__mpn_submul_1) # warm up phase 1 daddiu $5,$5,8 +#if __mips_isa_rev < 6 dmultu $8,$7 +#else + dmulu $11,$8,$7 + dmuhu $12,$8,$7 +#endif daddiu $6,$6,-1 beq $6,$0,L(LC0) @@ -56,11 +61,21 @@ ENTRY (__mpn_submul_1) ld $8,0($5) # load new s1 limb as early as possible L(Loop): ld $10,0($4) +#if __mips_isa_rev < 6 mflo $3 mfhi $9 +#else + move $3,$11 + move $9,$12 +#endif daddiu $5,$5,8 daddu $3,$3,$2 # add old carry limb to low product limb +#if __mips_isa_rev < 6 dmultu $8,$7 +#else + dmulu $11,$8,$7 + dmuhu $12,$8,$7 +#endif ld $8,0($5) # load new s1 limb as early as possible daddiu $6,$6,-1 # decrement loop counter sltu $2,$3,$2 # carry from previous addition -> $2 @@ -74,11 +89,21 @@ L(Loop): ld $10,0($4) # cool down phase 1 L(LC1): ld $10,0($4) +#if __mips_isa_rev < 6 mflo $3 mfhi $9 +#else + move $3,$11 + move $9,$12 +#endif daddu $3,$3,$2 sltu $2,$3,$2 +#if __mips_isa_rev < 6 dmultu $8,$7 +#else + dmulu $11,$8,$7 + dmuhu $12,$8,$7 +#endif dsubu $3,$10,$3 sgtu $10,$3,$10 daddu $2,$2,$10 @@ -88,8 +113,13 @@ L(LC1): ld $10,0($4) # cool down phase 0 L(LC0): ld $10,0($4) +#if __mips_isa_rev < 6 mflo $3 mfhi $9 +#else + move $3,$11 + move $9,$12 +#endif daddu $3,$3,$2 sltu $2,$3,$2 dsubu $3,$10,$3 -- cgit 1.4.1