aboutsummaryrefslogtreecommitdiff
path: root/sysdeps/mips
diff options
context:
space:
mode:
authorSteve Ellcey <sellcey@mips.com>2014-12-19 14:39:18 -0800
committerSteve Ellcey <sellcey@mips.com>2014-12-19 14:39:18 -0800
commit8b2800c0fb18f83d1ee8083d0a7ac15e0b011e73 (patch)
tree883f5ead649507e76a7ecfab18bf7fa5f08d4cc6 /sysdeps/mips
parent04d55561978eb59e36ced8fc1e8d87a72ef70072 (diff)
downloadglibc-8b2800c0fb18f83d1ee8083d0a7ac15e0b011e73.zip
glibc-8b2800c0fb18f83d1ee8083d0a7ac15e0b011e73.tar.gz
glibc-8b2800c0fb18f83d1ee8083d0a7ac15e0b011e73.tar.bz2
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.
Diffstat (limited to 'sysdeps/mips')
-rw-r--r--sysdeps/mips/addmul_1.S30
-rw-r--r--sysdeps/mips/mips64/addmul_1.S30
-rw-r--r--sysdeps/mips/mips64/mul_1.S30
-rw-r--r--sysdeps/mips/mips64/submul_1.S30
-rw-r--r--sysdeps/mips/mul_1.S31
-rw-r--r--sysdeps/mips/submul_1.S31
6 files changed, 182 insertions, 0 deletions
diff --git a/sysdeps/mips/addmul_1.S b/sysdeps/mips/addmul_1.S
index 2c4c34b..084080e 100644
--- a/sysdeps/mips/addmul_1.S
+++ b/sysdeps/mips/addmul_1.S
@@ -42,7 +42,12 @@ ENTRY (__mpn_addmul_1)
/* warm up phase 1 */
addiu $5,$5,4
+#if __mips_isa_rev < 6
multu $8,$7
+#else
+ mulu $11,$8,$7
+ muhu $12,$8,$7
+#endif
addiu $6,$6,-1
beq $6,$0,L(LC0)
@@ -53,11 +58,21 @@ ENTRY (__mpn_addmul_1)
lw $8,0($5) /* load new s1 limb as early as possible */
L(Loop): lw $10,0($4)
+#if __mips_isa_rev < 6
mflo $3
mfhi $9
+#else
+ move $3,$11
+ move $9,$12
+#endif
addiu $5,$5,4
addu $3,$3,$2 /* add old carry limb to low product limb */
+#if __mips_isa_rev < 6
multu $8,$7
+#else
+ mulu $11,$8,$7
+ muhu $12,$8,$7
+#endif
lw $8,0($5) /* load new s1 limb as early as possible */
addiu $6,$6,-1 /* decrement loop counter */
sltu $2,$3,$2 /* carry from previous addition -> $2 */
@@ -71,11 +86,21 @@ L(Loop): lw $10,0($4)
/* cool down phase 1 */
L(LC1): lw $10,0($4)
+#if __mips_isa_rev < 6
mflo $3
mfhi $9
+#else
+ move $3,$11
+ move $9,$12
+#endif
addu $3,$3,$2
sltu $2,$3,$2
+#if __mips_isa_rev < 6
multu $8,$7
+#else
+ mulu $11,$8,$7
+ muhu $12,$8,$7
+#endif
addu $3,$10,$3
sltu $10,$3,$10
addu $2,$2,$10
@@ -85,8 +110,13 @@ L(LC1): lw $10,0($4)
/* cool down phase 0 */
L(LC0): lw $10,0($4)
+#if __mips_isa_rev < 6
mflo $3
mfhi $9
+#else
+ move $3,$11
+ move $9,$12
+#endif
addu $3,$3,$2
sltu $2,$3,$2
addu $3,$10,$3
diff --git a/sysdeps/mips/mips64/addmul_1.S b/sysdeps/mips/mips64/addmul_1.S
index 57edd4a..4f035f9 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 a8d8078..0e5b734 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 bf24123..84e9a91 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
diff --git a/sysdeps/mips/mul_1.S b/sysdeps/mips/mul_1.S
index c2db68a..c3368f3 100644
--- a/sysdeps/mips/mul_1.S
+++ b/sysdeps/mips/mul_1.S
@@ -42,7 +42,12 @@ ENTRY (__mpn_mul_1)
/* warm up phase 1 */
addiu $5,$5,4
+#if __mips_isa_rev < 6
multu $8,$7
+#else
+ mulu $11,$8,$7
+ muhu $12,$8,$7
+#endif
addiu $6,$6,-1
beq $6,$0,L(LC0)
@@ -52,11 +57,22 @@ ENTRY (__mpn_mul_1)
beq $6,$0,L(LC1)
lw $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
addiu $5,$5,4
addu $10,$10,$2 /* add old carry limb to low product limb */
+#if __mips_isa_rev < 6
multu $8,$7
+#else
+ mulu $11,$8,$7
+ muhu $12,$8,$7
+#endif
lw $8,0($5) /* load new s1 limb as early as possible */
addiu $6,$6,-1 /* decrement loop counter */
sltu $2,$10,$2 /* carry from previous addition -> $2 */
@@ -66,18 +82,33 @@ L(Loop): mflo $10
addu $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
addu $10,$10,$2
sltu $2,$10,$2
+#if __mips_isa_rev < 6
multu $8,$7
+#else
+ mulu $11,$8,$7
+ muhu $12,$8,$7
+#endif
sw $10,0($4)
addiu $4,$4,4
addu $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
addu $10,$10,$2
sltu $2,$10,$2
sw $10,0($4)
diff --git a/sysdeps/mips/submul_1.S b/sysdeps/mips/submul_1.S
index ce888d4..4b8a265 100644
--- a/sysdeps/mips/submul_1.S
+++ b/sysdeps/mips/submul_1.S
@@ -42,7 +42,13 @@ ENTRY (__mpn_submul_1)
/* warm up phase 1 */
addiu $5,$5,4
+#if __mips_isa_rev < 6
multu $8,$7
+#else
+ mulu $11,$8,$7
+ muhu $12,$8,$7
+#endif
+
addiu $6,$6,-1
beq $6,$0,L(LC0)
@@ -53,11 +59,21 @@ ENTRY (__mpn_submul_1)
lw $8,0($5) /* load new s1 limb as early as possible */
L(Loop): lw $10,0($4)
+#if __mips_isa_rev < 6
mflo $3
mfhi $9
+#else
+ move $3,$11
+ move $9,$12
+#endif
addiu $5,$5,4
addu $3,$3,$2 /* add old carry limb to low product limb */
+#if __mips_isa_rev < 6
multu $8,$7
+#else
+ mulu $11,$8,$7
+ muhu $12,$8,$7
+#endif
lw $8,0($5) /* load new s1 limb as early as possible */
addiu $6,$6,-1 /* decrement loop counter */
sltu $2,$3,$2 /* carry from previous addition -> $2 */
@@ -71,11 +87,21 @@ L(Loop): lw $10,0($4)
/* cool down phase 1 */
L(LC1): lw $10,0($4)
+#if __mips_isa_rev < 6
mflo $3
mfhi $9
+#else
+ move $3,$11
+ move $9,$12
+#endif
addu $3,$3,$2
sltu $2,$3,$2
+#if __mips_isa_rev < 6
multu $8,$7
+#else
+ mulu $11,$8,$7
+ muhu $12,$8,$7
+#endif
subu $3,$10,$3
sgtu $10,$3,$10
addu $2,$2,$10
@@ -85,8 +111,13 @@ L(LC1): lw $10,0($4)
/* cool down phase 0 */
L(LC0): lw $10,0($4)
+#if __mips_isa_rev < 6
mflo $3
mfhi $9
+#else
+ move $3,$11
+ move $9,$12
+#endif
addu $3,$3,$2
sltu $2,$3,$2
subu $3,$10,$3