* sysdeps/mips/mips64/memcpy.S: Fix porting bug that broke unaligned copying of 8-15 bytes. From Chris Demetriou <cgd@broadcom.com>. Fix label names. * sysdeps/mips/mips64/memset.S: Fix label names. Make similar change as to memcpy.S. * sysdeps/mips/memcpy.S: Formatting changes. * sysdeps/mips/memset.S: Likewise.

2003-03-21  Alexandre Oliva  <aoliva@redhat.com>

	* sysdeps/mips/mips64/memcpy.S: Fix porting bug that broke
	unaligned copying of 8-15 bytes.  From Chris Demetriou
	<cgd@broadcom.com>.  Fix label names.
	* sysdeps/mips/mips64/memset.S: Fix label names.  Make similar
	change as to memcpy.S.
	* sysdeps/mips/memcpy.S: Formatting changes.
	* sysdeps/mips/memset.S: Likewise.

4 files changed, 58 insertions, 41 deletions

diff --git a/sysdeps/mips/memcpy.S b/sysdeps/mips/memcpy.S
index 1e9130f6bd..05d209739e 100644
--- a/sysdeps/mips/memcpy.S
+++ b/sysdeps/mips/memcpy.S
@@ -54,12 +54,14 @@ ENTRY (memcpy)
 	SWHI	t0, 0(a0)
 	addu	a0, t1
 
-L(chk8w):	andi	t0, a2, 0x1f		# 32 or more bytes left?
+L(chk8w):	
+	andi	t0, a2, 0x1f		# 32 or more bytes left?
 	beq	t0, a2, L(chk1w)
 	subu	a3, a2, t0		# Yes
 	addu	a3, a1			# a3 = end address of loop
 	move	a2, t0			# a2 = what will be left after loop
-L(lop8w):	lw	t0,  0(a1)		# Loop taking 8 words at a time
+L(lop8w):	
+	lw	t0,  0(a1)		# Loop taking 8 words at a time
 	lw	t1,  4(a1)
 	lw	t2,  8(a1)
 	lw	t3, 12(a1)
@@ -79,28 +81,34 @@ L(lop8w):	lw	t0,  0(a1)		# Loop taking 8 words at a time
 	bne	a1, a3, L(lop8w)
 	sw	t7,  -4(a0)
 
-L(chk1w):	andi	t0, a2, 0x3		# 4 or more bytes left?
+L(chk1w):	
+	andi	t0, a2, 0x3		# 4 or more bytes left?
 	beq	t0, a2, L(last8)
 	subu	a3, a2, t0		# Yes, handle them one word at a time
 	addu	a3, a1			# a3 again end address
 	move	a2, t0
-L(lop1w):	lw	t0, 0(a1)
+L(lop1w):	
+	lw	t0, 0(a1)
 	addiu	a0, 4
 	addiu	a1, 4
 	bne	a1, a3, L(lop1w)
 	sw	t0, -4(a0)
 
-L(last8):	blez	a2, L(lst8e)		# Handle last 8 bytes, one at a time
+L(last8):	
+	blez	a2, L(lst8e)		# Handle last 8 bytes, one at a time
 	addu	a3, a2, a1
-L(lst8l):	lb	t0, 0(a1)
+L(lst8l):	
+	lb	t0, 0(a1)
 	addiu	a0, 1
 	addiu	a1, 1
 	bne	a1, a3, L(lst8l)
 	sb	t0, -1(a0)
-L(lst8e):	jr	ra			# Bye, bye
+L(lst8e):	
+	jr	ra			# Bye, bye
 	nop
 
-L(shift):	subu	a3, zero, a0		# Src and Dest unaligned 
+L(shift):	
+	subu	a3, zero, a0		# Src and Dest unaligned 
 	andi	a3, 0x3			#  (unoptimized case...)
 	beq	a3, zero, L(shft1)
 	subu	a2, a3			# a2 = bytes left
@@ -109,16 +117,18 @@ L(shift):	subu	a3, zero, a0		# Src and Dest unaligned
 	addu	a1, a3
 	SWHI	t0, 0(a0)
 	addu	a0, a3
-L(shft1):	andi	t0, a2, 0x3
+L(shft1):	
+	andi	t0, a2, 0x3
 	subu	a3, a2, t0
 	addu	a3, a1
-L(shfth):	LWHI	t1, 0(a1)		# Limp through, word by word
+L(shfth):	
+	LWHI	t1, 0(a1)		# Limp through, word by word
 	LWLO	t1, 3(a1)
 	addiu	a0, 4
 	addiu	a1, 4
 	bne	a1, a3, L(shfth)
 	sw	t1, -4(a0)
-	b	L(last8)			# Handle anything which may be left
+	b	L(last8)		# Handle anything which may be left
 	move	a2, t0
 
 	.set	reorder
diff --git a/sysdeps/mips/memset.S b/sysdeps/mips/memset.S
index b372d292f2..f120123544 100644
--- a/sysdeps/mips/memset.S
+++ b/sysdeps/mips/memset.S
@@ -43,35 +43,42 @@ ENTRY (memset)
 	sll	t0, a1, 16
 	or	a1, t0			# a1 is now pattern in full word
 
-L(ueven):	subu	t0, zero, a0		# Unaligned address?
+L(ueven):	
+	subu	t0, zero, a0		# Unaligned address?
 	andi	t0, 0x3
 	beq	t0, zero, L(chkw)
 	subu	a2, t0
 	SWHI	a1, 0(a0)		# Yes, handle first unaligned part
 	addu	a0, t0			# Now both a0 and a2 are updated
 
-L(chkw):	andi	t0, a2, 0x7		# Enough left for one loop iteration?
+L(chkw):	
+	andi	t0, a2, 0x7		# Enough left for one loop iteration?
 	beq	t0, a2, L(chkl)
 	subu	a3, a2, t0
 	addu	a3, a0			# a3 is last loop address +1
 	move	a2, t0			# a2 is now # of bytes left after loop
-L(loopw):	addiu	a0, 8			# Handle 2 words pr. iteration
+L(loopw):	
+	addiu	a0, 8			# Handle 2 words pr. iteration
 	sw	a1, -8(a0)
 	bne	a0, a3, L(loopw)
 	sw	a1, -4(a0)
 
-L(chkl):	andi	t0, a2, 0x4		# Check if there is at least a full
+L(chkl):	
+	andi	t0, a2, 0x4		# Check if there is at least a full
 	beq	t0, zero, L(last8)	#  word remaining after the loop
 	subu	a2, t0
 	sw	a1, 0(a0)		# Yes...
 	addiu	a0, 4
 
-L(last8):	blez	a2, L(exit)		# Handle last 8 bytes (if cnt>0)
+L(last8):	
+	blez	a2, L(exit)		# Handle last 8 bytes (if cnt>0)
 	addu	a3, a2, a0		# a3 is last address +1
-L(lst8l):	addiu	a0, 1
+L(lst8l):	
+	addiu	a0, 1
 	bne	a0, a3, L(lst8l)
 	sb	a1, -1(a0)
-L(exit):	j	ra			# Bye, bye
+L(exit):	
+	j	ra			# Bye, bye
 	nop
 
 	.set	reorder
diff --git a/sysdeps/mips/mips64/memcpy.S b/sysdeps/mips/mips64/memcpy.S
index 3dbb31f49a..c4ba7a8f51 100644
--- a/sysdeps/mips/mips64/memcpy.S
+++ b/sysdeps/mips/mips64/memcpy.S
@@ -42,8 +42,8 @@
 ENTRY (memcpy)
 	.set	noreorder
 
-	slti	a4, a2, 8		# Less than 8?
-	bne	a4, zero, L(last8)
+	slti	a4, a2, 16		# Less than 16?
+	bne	a4, zero, L(last16)
 	move	v0, a0			# Setup exit value before too late
 
 	xor	a4, a1, a0		# Find a0/a1 displacement
@@ -86,53 +86,53 @@ L(lop8w):
 	sd	t7,  -8(a0)
 
 L(chk1w):
-	andi	a4, a2, 0x7		# 4 or more bytes left?
-	beq	a4, a2, L(last8)
-	PTR_SUBU a3, a2, a4		# Yes, handle them one word at a time
+	andi	a4, a2, 0x7		# 8 or more bytes left?
+	beq	a4, a2, L(last16)
+	PTR_SUBU a3, a2, a4		# Yes, handle them one dword at a time
 	PTR_ADDU a3, a1			# a3 again end address
 	move	a2, a4
-L(lop1w):	
+L(lop1w):
 	ld	a4, 0(a1)
 	PTR_ADDIU a0, 8
 	PTR_ADDIU a1, 8
 	bne	a1, a3, L(lop1w)
 	sd	a4, -8(a0)
 
-L(last8):
-	blez	a2, L(lst8e)		# Handle last 8 bytes, one at a time
+L(last16):
+	blez	a2, L(lst16e)		# Handle last 16 bytes, one at a time
 	PTR_ADDU a3, a2, a1
-L(lst8l):
+L(lst16l):
 	lb	a4, 0(a1)
 	PTR_ADDIU a0, 1
 	PTR_ADDIU a1, 1
-	bne	a1, a3, L(lst8l)
+	bne	a1, a3, L(lst16l)
 	sb	a4, -1(a0)
-L(lst8e):
+L(lst16e):
 	jr	ra			# Bye, bye
 	nop
 
 L(shift):
 	PTR_SUBU a3, zero, a0		# Src and Dest unaligned 
 	andi	a3, 0x7			#  (unoptimized case...)
-	beq	a3, zero, L(shfa5)
+	beq	a3, zero, L(shft1)
 	PTR_SUBU a2, a3			# a2 = bytes left
 	LDHI	a4, 0(a1)		# Take care of first odd part
 	LDLO	a4, 7(a1)
 	PTR_ADDU a1, a3
 	SDHI	a4, 0(a0)
 	PTR_ADDU a0, a3
-L(shfa5):
+L(shft1):
 	andi	a4, a2, 0x7
 	PTR_SUBU a3, a2, a4
 	PTR_ADDU a3, a1
 L(shfth):
-	LDHI	a5, 0(a1)		# Limp through, word by word
+	LDHI	a5, 0(a1)		# Limp through, dword by dword
 	LDLO	a5, 7(a1)
 	PTR_ADDIU a0, 8
 	PTR_ADDIU a1, 8
 	bne	a1, a3, L(shfth)
 	sd	a5, -8(a0)
-	b	L(last8)		# Handle anything which may be left
+	b	L(last16)		# Handle anything which may be left
 	move	a2, a4
 
 	.set	reorder
diff --git a/sysdeps/mips/mips64/memset.S b/sysdeps/mips/mips64/memset.S
index 6a3b154bad..d6e1790fbe 100644
--- a/sysdeps/mips/mips64/memset.S
+++ b/sysdeps/mips/mips64/memset.S
@@ -36,8 +36,8 @@
 ENTRY (memset)
 	.set	noreorder
 
-	slti	t5, a2, 8		# Less than 8?
-	bne	t5, zero, L(last8)
+	slti	t5, a2, 16		# Less than 16?
+	bne	t5, zero, L(last16)
 	move	v0, a0			# Setup exit value before too late
 
 	beq	a1, zero, L(ueven)	# If zero pattern, no need to extend
@@ -64,24 +64,24 @@ L(chkw):
 	PTR_ADDU a3, a0			# a3 is last loop address +1
 	move	a2, t4			# a2 is now # of bytes left after loop
 L(loopw):
-	PTR_ADDIU a0, 16		# Handle 2 words pr. iteration
+	PTR_ADDIU a0, 16		# Handle 2 dwords pr. iteration
 	sd	a1, -16(a0)
 	bne	a0, a3, L(loopw)
 	sd	a1,  -8(a0)
 
 L(chkl):
 	andi	t4, a2, 0x8		# Check if there is at least a double
-	beq	t4, zero, L(last8)	#  word remaining after the loop
+	beq	t4, zero, L(last16)	#  word remaining after the loop
 	PTR_SUBU a2, t4
 	sd	a1, 0(a0)		# Yes...
 	PTR_ADDIU a0, 8
 
-L(last8):
-	blez	a2, L(exit)		# Handle last 8 bytes (if cnt>0)
+L(last16):
+	blez	a2, L(exit)		# Handle last 16 bytes (if cnt>0)
 	PTR_ADDU a3, a2, a0		# a3 is last address +1
-L(lst8l):
+L(lst16l):
 	PTR_ADDIU a0, 1
-	bne	a0, a3, L(lst8l)
+	bne	a0, a3, L(lst16l)
 	sb	a1, -1(a0)
 L(exit):
 	j	ra			# Bye, bye