mirror of
git://sourceware.org/git/glibc.git
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Update.
* sysdeps/powerpc/fpu/s_copysign.S: Use L() instead of local labels. * sysdeps/powerpc/submul_1.S: Likewise. * sysdeps/powerpc/sub_n.S: Likewise. * sysdeps/powerpc/strcpy.S: Likewise. * sysdeps/powerpc/strcmp.S: Likewise. * sysdeps/powerpc/stpcpy.S: Likewise. * sysdeps/powerpc/rshift.S: Likewise. * sysdeps/powerpc/mul_1.S: Likewise. * sysdeps/powerpc/memset.S: Likewise. * sysdeps/powerpc/lshift.S: Likewise. * sysdeps/powerpc/addmul_1.S: Likewise. * sysdeps/powerpc/add_n.S: Likewise.
This commit is contained in:
Ulrich Drepper
parent
b041ebc280
commit
4e141d64a5
13
ChangeLog
13
ChangeLog
@ -1,5 +1,18 @@
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2000-02-28 Ulrich Drepper <drepper@redhat.com>
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* sysdeps/powerpc/fpu/s_copysign.S: Use L() instead of local labels.
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* sysdeps/powerpc/submul_1.S: Likewise.
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* sysdeps/powerpc/sub_n.S: Likewise.
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* sysdeps/powerpc/strcpy.S: Likewise.
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* sysdeps/powerpc/strcmp.S: Likewise.
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* sysdeps/powerpc/stpcpy.S: Likewise.
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* sysdeps/powerpc/rshift.S: Likewise.
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* sysdeps/powerpc/mul_1.S: Likewise.
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* sysdeps/powerpc/memset.S: Likewise.
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* sysdeps/powerpc/lshift.S: Likewise.
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* sysdeps/powerpc/addmul_1.S: Likewise.
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* sysdeps/powerpc/add_n.S: Likewise.
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* sysdeps/unix/start.c: Initialize __errno and add comment
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explaining why. Remove K&R compatibility.
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@ -1,5 +1,5 @@
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/* Add two limb vectors of equal, non-zero length for PowerPC.
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Copyright (C) 1997, 1999 Free Software Foundation, Inc.
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Copyright (C) 1997, 1999, 2000 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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@ -33,7 +33,7 @@ EALIGN(__mpn_add_n,3,0)
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srwi. r7,r6,1
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li r10,0
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mtctr r7
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bt 31,2f
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bt 31,L(2)
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/* Clear the carry. */
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addic r0,r0,0
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@ -41,19 +41,19 @@ EALIGN(__mpn_add_n,3,0)
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addi r3,r3,-4
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addi r4,r4,-4
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addi r5,r5,-4
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b 0f
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b L(0)
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2: lwz r7,0(r5)
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L(2): lwz r7,0(r5)
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lwz r6,0(r4)
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addc r6,r6,r7
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stw r6,0(r3)
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beq 1f
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beq L(1)
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/* The loop. */
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/* Align start of loop to an odd word boundary to guarantee that the
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last two words can be fetched in one access (for 601). */
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0: lwz r9,4(r4)
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L(0): lwz r9,4(r4)
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lwz r8,4(r5)
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lwzu r6,8(r4)
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lwzu r7,8(r5)
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@ -61,8 +61,8 @@ EALIGN(__mpn_add_n,3,0)
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stw r8,4(r3)
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adde r6,r6,r7
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stwu r6,8(r3)
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bdnz 0b
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bdnz L(0)
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/* Return the carry. */
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1: addze r3,r10
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L(1): addze r3,r10
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blr
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END(__mpn_add_n)
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@ -1,5 +1,5 @@
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/* Multiply a limb vector by a single limb, for PowerPC.
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Copyright (C) 1993, 1994, 1995, 1997, 1999 Free Software Foundation, Inc.
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Copyright (C) 1993-1995, 1997, 1999, 2000 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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@ -31,9 +31,9 @@ ENTRY(__mpn_addmul_1)
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lwz r9,0(r3)
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addc r8,r7,r9
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addi r3,r3,-4 /* adjust res_ptr */
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bdz 1f
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bdz L(1)
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0: lwzu r0,4(r4)
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L(0): lwzu r0,4(r4)
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stwu r8,4(r3)
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mullw r8,r0,r6
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adde r7,r8,r10
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@ -41,9 +41,9 @@ ENTRY(__mpn_addmul_1)
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lwz r9,4(r3)
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addze r10,r10
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addc r8,r7,r9
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bdnz 0b
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bdnz L(0)
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1: stw r8,4(r3)
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L(1): stw r8,4(r3)
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addze r3,r10
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blr
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END(__mpn_addmul_1)
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@ -1,5 +1,5 @@
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/* Copy a sign bit between floating-point values.
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Copyright (C) 1997, 1999 Free Software Foundation, Inc.
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Copyright (C) 1997, 1999, 2000 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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@ -31,10 +31,10 @@ ENTRY(__copysign)
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lwz r3,8(r1)
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cmpwi r3,0
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addi r1,r1,16
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blt 0f
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blt L(0)
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fabs fp1,fp1
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blr
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0: fnabs fp1,fp1
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L(0): fnabs fp1,fp1
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blr
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END (__copysign)
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@ -1,5 +1,5 @@
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/* Shift a limb left, low level routine.
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Copyright (C) 1996, 1997, 1999 Free Software Foundation, Inc.
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Copyright (C) 1996, 1997, 1999, 2000 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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@ -35,7 +35,7 @@ EALIGN(__mpn_lshift,3,0)
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bdz L(end1)
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0: lwzu r10,-4(r4)
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L(0): lwzu r10,-4(r4)
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slw r9,r11,r6
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srw r12,r10,r8
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or r9,r9,r12
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@ -46,7 +46,7 @@ EALIGN(__mpn_lshift,3,0)
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srw r12,r11,r8
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or r9,r9,r12
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stwu r9,-4(r7)
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bdnz 0b
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bdnz L(0)
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L(end1):slw r0,r11,r6
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stw r0,-4(r7)
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@ -76,7 +76,7 @@ L(end2):slw r0,r10,r6
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#define DO_LSHIFT(n) \
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mtctr r5; \
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0: lwzu r10,-4(r4); \
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L(n): lwzu r10,-4(r4); \
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slwi r9,r11,n; \
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inslwi r9,r10,n,32-n; \
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stwu r9,-4(r7); \
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@ -85,7 +85,7 @@ L(end2):slw r0,r10,r6
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slwi r9,r10,n; \
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inslwi r9,r11,n,32-n; \
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stwu r9,-4(r7); \
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bdnz 0b; \
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bdnz L(n); \
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b L(end1)
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DO_LSHIFT(1)
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@ -1,5 +1,5 @@
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/* Optimized memset implementation for PowerPC.
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Copyright (C) 1997, 1999 Free Software Foundation, Inc.
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Copyright (C) 1997, 1999, 2000 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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@ -42,10 +42,10 @@ EALIGN(memset,5,1)
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subfic r7,r7,4
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add r6,r6,r7
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sub r5,r5,r7
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bf+ 31,0f
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bf+ 31,L(g0)
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stb r4,0(r3)
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bt 30,L(aligned)
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0: sth r4,-2(r6) # 16th instruction from .align
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L(g0): sth r4,-2(r6) # 16th instruction from .align
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/* take care of case for size < 31 */
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L(aligned):
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mtcrf 0x01,r5
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@ -60,15 +60,15 @@ L(aligned):
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sub r5,r5,r7
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cmplwi cr1,r7,0x10
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mr r8,r6
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bf 28,1f
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bf 28,L(a1)
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stw r4,-4(r8)
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stwu r4,-8(r8)
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1: blt cr1,2f
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L(a1): blt cr1,2f
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stw r4,-4(r8) # 32nd instruction from .align
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stw r4,-8(r8)
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stw r4,-12(r8)
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stwu r4,-16(r8)
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2: bf 29,L(caligned)
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L(a2): bf 29,L(caligned)
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stw r4,-4(r8)
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/* now aligned to a cache line. */
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L(caligned):
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@ -81,10 +81,10 @@ L(caligned):
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beq L(medium) # we may not actually get to do a full line
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clrlwi. r5,r5,27
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add r6,r6,r7
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0: li r8,-0x40
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li r8,-0x40
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bdz L(cloopdone) # 48th instruction from .align
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3: dcbz r8,r6
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L(c3): dcbz r8,r6
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stw r4,-4(r6)
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stw r4,-8(r6)
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stw r4,-12(r6)
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@ -95,7 +95,7 @@ L(caligned):
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nop # let 601 fetch first 8 instructions of loop
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stw r4,-28(r6)
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stwu r4,-32(r6)
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bdnz 3b
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bdnz L(c3)
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L(cloopdone):
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stw r4,-4(r6)
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stw r4,-8(r6)
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@ -121,15 +121,15 @@ L(zloopstart):
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li r7,0x20
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li r8,-0x40
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cmplwi cr1,r5,16 # 8
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bf 26,0f
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bf 26,L(z0)
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dcbz 0,r6
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addi r6,r6,0x20
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0: li r9,-0x20
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bf 25,1f
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L(z0): li r9,-0x20
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bf 25,L(z1)
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dcbz 0,r6
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dcbz r7,r6
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addi r6,r6,0x40 # 16
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1: cmplwi cr5,r5,0
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L(z1): cmplwi cr5,r5,0
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beq L(medium)
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L(zloop):
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dcbz 0,r6
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@ -1,5 +1,5 @@
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/* Multiply a limb vector by a limb, for PowerPC.
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Copyright (C) 1993, 1994, 1995, 1997, 1999 Free Software Foundation, Inc.
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Copyright (C) 1993-1995, 1997, 1999, 2000 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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@ -31,16 +31,16 @@ ENTRY(__mpn_mul_1)
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mulhwu r10,r0,r6
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addi r3,r3,-4 # adjust res_ptr
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addic r5,r5,0 # clear cy with dummy insn
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bdz 1f
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bdz L(1)
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0: lwzu r0,4(r4)
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L(0): lwzu r0,4(r4)
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stwu r7,4(r3)
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mullw r8,r0,r6
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adde r7,r8,r10
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mulhwu r10,r0,r6
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bdnz 0b
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bdnz L(0)
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1: stw r7,4(r3)
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L(1): stw r7,4(r3)
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addze r3,r10
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blr
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END(__mpn_mul_1)
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@ -1,5 +1,5 @@
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/* Shift a limb right, low level routine.
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Copyright (C) 1995, 1997, 1999 Free Software Foundation, Inc.
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Copyright (C) 1995, 1997, 1999, 2000 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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@ -31,26 +31,26 @@ ENTRY(__mpn_rshift)
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subfic r8,r6,32
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lwz r11,0(r4) # load first s1 limb
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slw r3,r11,r8 # compute function return value
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bdz 1f
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bdz L(1)
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0: lwzu r10,4(r4)
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L(0): lwzu r10,4(r4)
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srw r9,r11,r6
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slw r12,r10,r8
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or r9,r9,r12
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stwu r9,4(r7)
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bdz 2f
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bdz L(2)
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lwzu r11,4(r4)
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srw r9,r10,r6
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slw r12,r11,r8
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or r9,r9,r12
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stwu r9,4(r7)
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bdnz 0b
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bdnz L(0)
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1: srw r0,r11,r6
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L(1): srw r0,r11,r6
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stw r0,4(r7)
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blr
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2: srw r0,r10,r6
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L(2): srw r0,r10,r6
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stw r0,4(r7)
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blr
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END(__mpn_rshift)
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@ -1,5 +1,5 @@
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/* Optimized stpcpy implementation for PowerPC.
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Copyright (C) 1997, 1999 Free Software Foundation, Inc.
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Copyright (C) 1997, 1999, 2000 Free Software Foundation, Inc.
|
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This file is part of the GNU C Library.
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|
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The GNU C Library is free software; you can redistribute it and/or
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@ -44,24 +44,24 @@ EALIGN(__stpcpy,4,0)
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lwz r6,0(r4)
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addi r7,r7,-0x101
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addi r8,r8,0x7f7f
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b 2f
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b L(g2)
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0: lwzu r10,4(r4)
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L(g0): lwzu r10,4(r4)
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stwu r6,4(r3)
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add r0,r7,r10
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nor r9,r8,r10
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and. r0,r0,r9
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bne- 1f
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bne- L(g1)
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lwzu r6,4(r4)
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stwu r10,4(r3)
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2: add r0,r7,r6
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L(g2): add r0,r7,r6
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nor r9,r8,r6
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and. r0,r0,r9
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beq+ 0b
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beq+ L(g0)
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|
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mr r10,r6
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/* We've hit the end of the string. Do the rest byte-by-byte. */
|
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1: rlwinm. r0,r10,8,24,31
|
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L(g1): rlwinm. r0,r10,8,24,31
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stbu r0,4(r3)
|
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beqlr-
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rlwinm. r0,r10,16,24,31
|
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@ -80,20 +80,20 @@ L(unaligned):
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lbz r6,0(r4)
|
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addi r3,r3,3
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cmpwi r6,0
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beq- 2f
|
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beq- L(u2)
|
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|
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0: lbzu r10,1(r4)
|
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L(u0): lbzu r10,1(r4)
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stbu r6,1(r3)
|
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cmpwi r10,0
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beq- 1f
|
||||
beq- L(u1)
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nop /* Let 601 load start of loop. */
|
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lbzu r6,1(r4)
|
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stbu r10,1(r3)
|
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cmpwi r6,0
|
||||
bne+ 0b
|
||||
2: stbu r6,1(r3)
|
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bne+ L(u0)
|
||||
L(u2): stbu r6,1(r3)
|
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blr
|
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1: stbu r10,1(r3)
|
||||
L(u1): stbu r10,1(r3)
|
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blr
|
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END(__stpcpy)
|
||||
|
||||
|
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@ -1,5 +1,5 @@
|
||||
/* Optimized strcmp implementation for PowerPC.
|
||||
Copyright (C) 1997, 1999 Free Software Foundation, Inc.
|
||||
Copyright (C) 1997, 1999, 2000 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
@ -48,16 +48,16 @@ EALIGN(strcmp,4,0)
|
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lis r8,0x7f7f
|
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addi r7,r7,-0x101
|
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addi r8,r8,0x7f7f
|
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b 1f
|
||||
b L(g1)
|
||||
|
||||
0: lwzu r5,4(r3)
|
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L(g0): lwzu r5,4(r3)
|
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bne cr1,L(different)
|
||||
lwzu r6,4(r4)
|
||||
1: add r0,r7,r5
|
||||
L(g1): add r0,r7,r5
|
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nor r9,r8,r5
|
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and. r0,r0,r9
|
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cmpw cr1,r5,r6
|
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beq+ 0b
|
||||
beq+ L(g0)
|
||||
L(endstring):
|
||||
/* OK. We've hit the end of the string. We need to be careful that
|
||||
we don't compare two strings as different because of gunk beyond
|
||||
@ -93,23 +93,23 @@ L(highbit):
|
||||
L(unaligned):
|
||||
lbz r5,0(r3)
|
||||
lbz r6,0(r4)
|
||||
b 1f
|
||||
b L(u1)
|
||||
|
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0: lbzu r5,1(r3)
|
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bne- 4f
|
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L(u0): lbzu r5,1(r3)
|
||||
bne- L(u4)
|
||||
lbzu r6,1(r4)
|
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1: cmpwi cr1,r5,0
|
||||
beq- cr1,3f
|
||||
L(u1): cmpwi cr1,r5,0
|
||||
beq- cr1,L(u3)
|
||||
cmpw r5,r6
|
||||
bne- 3f
|
||||
bne- L(u3)
|
||||
lbzu r5,1(r3)
|
||||
lbzu r6,1(r4)
|
||||
cmpwi cr1,r5,0
|
||||
cmpw r5,r6
|
||||
bne+ cr1,0b
|
||||
3: sub r3,r5,r6
|
||||
bne+ cr1,L(u0)
|
||||
L(u3): sub r3,r5,r6
|
||||
blr
|
||||
4: lbz r5,-1(r3)
|
||||
L(u4): lbz r5,-1(r3)
|
||||
sub r3,r5,r6
|
||||
blr
|
||||
END(strcmp)
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
/* Optimized strcpy implementation for PowerPC.
|
||||
Copyright (C) 1997, 1999 Free Software Foundation, Inc.
|
||||
Copyright (C) 1997, 1999, 2000 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
@ -45,24 +45,24 @@ EALIGN(strcpy,4,0)
|
||||
lwz r6,0(r4)
|
||||
addi r7,r7,-0x101
|
||||
addi r8,r8,0x7f7f
|
||||
b 2f
|
||||
b L(g2)
|
||||
|
||||
0: lwzu r10,4(r4)
|
||||
L(g0): lwzu r10,4(r4)
|
||||
stwu r6,4(r5)
|
||||
add r0,r7,r10
|
||||
nor r9,r8,r10
|
||||
and. r0,r0,r9
|
||||
bne- 1f
|
||||
bne- L(g1)
|
||||
lwzu r6,4(r4)
|
||||
stwu r10,4(r5)
|
||||
2: add r0,r7,r6
|
||||
L(g2): add r0,r7,r6
|
||||
nor r9,r8,r6
|
||||
and. r0,r0,r9
|
||||
beq+ 0b
|
||||
beq+ L(g0)
|
||||
|
||||
mr r10,r6
|
||||
/* We've hit the end of the string. Do the rest byte-by-byte. */
|
||||
1: rlwinm. r0,r10,8,24,31
|
||||
L(g1): rlwinm. r0,r10,8,24,31
|
||||
stb r0,4(r5)
|
||||
beqlr-
|
||||
rlwinm. r0,r10,16,24,31
|
||||
@ -81,20 +81,20 @@ L(unaligned):
|
||||
lbz r6,0(r4)
|
||||
addi r5,r3,-1
|
||||
cmpwi r6,0
|
||||
beq- 2f
|
||||
beq- L(u2)
|
||||
|
||||
0: lbzu r10,1(r4)
|
||||
L(u0): lbzu r10,1(r4)
|
||||
stbu r6,1(r5)
|
||||
cmpwi r10,0
|
||||
beq- 1f
|
||||
beq- L(u1)
|
||||
nop /* Let 601 load start of loop. */
|
||||
lbzu r6,1(r4)
|
||||
stbu r10,1(r5)
|
||||
cmpwi r6,0
|
||||
bne+ 0b
|
||||
2: stb r6,1(r5)
|
||||
bne+ L(u0)
|
||||
L(u2): stb r6,1(r5)
|
||||
blr
|
||||
1: stb r10,1(r5)
|
||||
L(u1): stb r10,1(r5)
|
||||
blr
|
||||
|
||||
END(strcpy)
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
/* Subtract two limb vectors of equal, non-zero length for PowerPC.
|
||||
Copyright (C) 1997, 1999 Free Software Foundation, Inc.
|
||||
Copyright (C) 1997, 1999, 2000 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
@ -32,7 +32,7 @@ EALIGN(__mpn_sub_n,3,1)
|
||||
mtcrf 0x01,r6
|
||||
srwi. r7,r6,1
|
||||
mtctr r7
|
||||
bt 31,2f
|
||||
bt 31,L(2)
|
||||
|
||||
/* Set the carry (clear the borrow). */
|
||||
subfc r0,r0,r0
|
||||
@ -40,18 +40,18 @@ EALIGN(__mpn_sub_n,3,1)
|
||||
addi r3,r3,-4
|
||||
addi r4,r4,-4
|
||||
addi r5,r5,-4
|
||||
b 0f
|
||||
b L(0)
|
||||
|
||||
2: lwz r7,0(r5)
|
||||
L(2): lwz r7,0(r5)
|
||||
lwz r6,0(r4)
|
||||
subfc r6,r7,r6
|
||||
stw r6,0(r3)
|
||||
beq 1f
|
||||
beq L(1)
|
||||
|
||||
/* Align start of loop to an odd word boundary to guarantee that the
|
||||
last two words can be fetched in one access (for 601). This turns
|
||||
out to be important. */
|
||||
0:
|
||||
L(0):
|
||||
lwz r9,4(r4)
|
||||
lwz r8,4(r5)
|
||||
lwzu r6,8(r4)
|
||||
@ -60,9 +60,9 @@ EALIGN(__mpn_sub_n,3,1)
|
||||
stw r8,4(r3)
|
||||
subfe r6,r7,r6
|
||||
stwu r6,8(r3)
|
||||
bdnz 0b
|
||||
bdnz L(0)
|
||||
/* Return the borrow. */
|
||||
1: subfe r3,r3,r3
|
||||
L(1): subfe r3,r3,r3
|
||||
neg r3,r3
|
||||
blr
|
||||
END(__mpn_sub_n)
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
/* Multiply a limb vector by a single limb, for PowerPC.
|
||||
Copyright (C) 1993, 1994, 1995, 1997, 1999 Free Software Foundation, Inc.
|
||||
Copyright (C) 1993-1995, 1997, 1999, 2000 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
@ -33,9 +33,9 @@ ENTRY(__mpn_submul_1)
|
||||
subf r8,r7,r9
|
||||
addc r7,r7,r8 # invert cy (r7 is junk)
|
||||
addi r3,r3,-4 # adjust res_ptr
|
||||
bdz 1f
|
||||
bdz L(1)
|
||||
|
||||
0: lwzu r0,4(r4)
|
||||
L(0): lwzu r0,4(r4)
|
||||
stwu r8,4(r3)
|
||||
mullw r8,r0,r6
|
||||
adde r7,r8,r10
|
||||
@ -44,9 +44,9 @@ ENTRY(__mpn_submul_1)
|
||||
addze r10,r10
|
||||
subf r8,r7,r9
|
||||
addc r7,r7,r8 # invert cy (r7 is junk)
|
||||
bdnz 0b
|
||||
bdnz L(0)
|
||||
|
||||
1: stw r8,4(r3)
|
||||
L(1): stw r8,4(r3)
|
||||
addze r3,r10
|
||||
blr
|
||||
END(__mpn_submul_1)
|
||||
|
||||
Loading…
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Reference in New Issue
Block a user