478b8fecda
o Renamed files in sparc64 to <name>_64.S when identical to sparc32 files. o iomap.c were equal for sparc32 and sparc64 o adjusted sparc/Makefile now we have only one lib/ Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
564 lines
14 KiB
ArmAsm
564 lines
14 KiB
ArmAsm
/* U1memcpy.S: UltraSPARC-I/II/IIi/IIe optimized memcpy.
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*
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* Copyright (C) 1997, 2004 David S. Miller (davem@redhat.com)
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* Copyright (C) 1996, 1997, 1998, 1999 Jakub Jelinek (jj@ultra.linux.cz)
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*/
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#ifdef __KERNEL__
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#include <asm/visasm.h>
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#include <asm/asi.h>
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#define GLOBAL_SPARE g7
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#else
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#define GLOBAL_SPARE g5
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#define ASI_BLK_P 0xf0
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#define FPRS_FEF 0x04
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#ifdef MEMCPY_DEBUG
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#define VISEntry rd %fprs, %o5; wr %g0, FPRS_FEF, %fprs; \
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clr %g1; clr %g2; clr %g3; subcc %g0, %g0, %g0;
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#define VISExit and %o5, FPRS_FEF, %o5; wr %o5, 0x0, %fprs
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#else
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#define VISEntry rd %fprs, %o5; wr %g0, FPRS_FEF, %fprs
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#define VISExit and %o5, FPRS_FEF, %o5; wr %o5, 0x0, %fprs
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#endif
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#endif
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#ifndef EX_LD
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#define EX_LD(x) x
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#endif
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#ifndef EX_ST
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#define EX_ST(x) x
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#endif
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#ifndef EX_RETVAL
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#define EX_RETVAL(x) x
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#endif
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#ifndef LOAD
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#define LOAD(type,addr,dest) type [addr], dest
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#endif
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#ifndef LOAD_BLK
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#define LOAD_BLK(addr,dest) ldda [addr] ASI_BLK_P, dest
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#endif
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#ifndef STORE
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#define STORE(type,src,addr) type src, [addr]
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#endif
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#ifndef STORE_BLK
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#define STORE_BLK(src,addr) stda src, [addr] ASI_BLK_P
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#endif
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#ifndef FUNC_NAME
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#define FUNC_NAME memcpy
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#endif
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#ifndef PREAMBLE
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#define PREAMBLE
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#endif
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#ifndef XCC
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#define XCC xcc
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#endif
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#define FREG_FROB(f1, f2, f3, f4, f5, f6, f7, f8, f9) \
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faligndata %f1, %f2, %f48; \
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faligndata %f2, %f3, %f50; \
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faligndata %f3, %f4, %f52; \
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faligndata %f4, %f5, %f54; \
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faligndata %f5, %f6, %f56; \
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faligndata %f6, %f7, %f58; \
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faligndata %f7, %f8, %f60; \
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faligndata %f8, %f9, %f62;
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#define MAIN_LOOP_CHUNK(src, dest, fdest, fsrc, len, jmptgt) \
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EX_LD(LOAD_BLK(%src, %fdest)); \
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EX_ST(STORE_BLK(%fsrc, %dest)); \
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add %src, 0x40, %src; \
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subcc %len, 0x40, %len; \
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be,pn %xcc, jmptgt; \
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add %dest, 0x40, %dest; \
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#define LOOP_CHUNK1(src, dest, len, branch_dest) \
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MAIN_LOOP_CHUNK(src, dest, f0, f48, len, branch_dest)
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#define LOOP_CHUNK2(src, dest, len, branch_dest) \
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MAIN_LOOP_CHUNK(src, dest, f16, f48, len, branch_dest)
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#define LOOP_CHUNK3(src, dest, len, branch_dest) \
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MAIN_LOOP_CHUNK(src, dest, f32, f48, len, branch_dest)
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#define DO_SYNC membar #Sync;
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#define STORE_SYNC(dest, fsrc) \
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EX_ST(STORE_BLK(%fsrc, %dest)); \
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add %dest, 0x40, %dest; \
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DO_SYNC
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#define STORE_JUMP(dest, fsrc, target) \
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EX_ST(STORE_BLK(%fsrc, %dest)); \
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add %dest, 0x40, %dest; \
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ba,pt %xcc, target; \
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nop;
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#define FINISH_VISCHUNK(dest, f0, f1, left) \
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subcc %left, 8, %left;\
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bl,pn %xcc, 95f; \
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faligndata %f0, %f1, %f48; \
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EX_ST(STORE(std, %f48, %dest)); \
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add %dest, 8, %dest;
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#define UNEVEN_VISCHUNK_LAST(dest, f0, f1, left) \
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subcc %left, 8, %left; \
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bl,pn %xcc, 95f; \
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fsrc1 %f0, %f1;
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#define UNEVEN_VISCHUNK(dest, f0, f1, left) \
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UNEVEN_VISCHUNK_LAST(dest, f0, f1, left) \
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ba,a,pt %xcc, 93f;
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.register %g2,#scratch
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.register %g3,#scratch
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.text
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.align 64
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.globl FUNC_NAME
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.type FUNC_NAME,#function
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FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
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srlx %o2, 31, %g2
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cmp %g2, 0
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tne %xcc, 5
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PREAMBLE
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mov %o0, %o4
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cmp %o2, 0
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be,pn %XCC, 85f
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or %o0, %o1, %o3
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cmp %o2, 16
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blu,a,pn %XCC, 80f
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or %o3, %o2, %o3
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cmp %o2, (5 * 64)
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blu,pt %XCC, 70f
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andcc %o3, 0x7, %g0
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/* Clobbers o5/g1/g2/g3/g7/icc/xcc. */
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VISEntry
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/* Is 'dst' already aligned on an 64-byte boundary? */
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andcc %o0, 0x3f, %g2
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be,pt %XCC, 2f
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/* Compute abs((dst & 0x3f) - 0x40) into %g2. This is the number
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* of bytes to copy to make 'dst' 64-byte aligned. We pre-
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* subtract this from 'len'.
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*/
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sub %o0, %o1, %GLOBAL_SPARE
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sub %g2, 0x40, %g2
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sub %g0, %g2, %g2
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sub %o2, %g2, %o2
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andcc %g2, 0x7, %g1
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be,pt %icc, 2f
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and %g2, 0x38, %g2
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1: subcc %g1, 0x1, %g1
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EX_LD(LOAD(ldub, %o1 + 0x00, %o3))
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EX_ST(STORE(stb, %o3, %o1 + %GLOBAL_SPARE))
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bgu,pt %XCC, 1b
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add %o1, 0x1, %o1
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add %o1, %GLOBAL_SPARE, %o0
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2: cmp %g2, 0x0
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and %o1, 0x7, %g1
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be,pt %icc, 3f
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alignaddr %o1, %g0, %o1
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EX_LD(LOAD(ldd, %o1, %f4))
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1: EX_LD(LOAD(ldd, %o1 + 0x8, %f6))
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add %o1, 0x8, %o1
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subcc %g2, 0x8, %g2
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faligndata %f4, %f6, %f0
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EX_ST(STORE(std, %f0, %o0))
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be,pn %icc, 3f
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add %o0, 0x8, %o0
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EX_LD(LOAD(ldd, %o1 + 0x8, %f4))
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add %o1, 0x8, %o1
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subcc %g2, 0x8, %g2
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faligndata %f6, %f4, %f0
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EX_ST(STORE(std, %f0, %o0))
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bne,pt %icc, 1b
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add %o0, 0x8, %o0
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/* Destination is 64-byte aligned. */
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3:
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membar #LoadStore | #StoreStore | #StoreLoad
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subcc %o2, 0x40, %GLOBAL_SPARE
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add %o1, %g1, %g1
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andncc %GLOBAL_SPARE, (0x40 - 1), %GLOBAL_SPARE
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srl %g1, 3, %g2
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sub %o2, %GLOBAL_SPARE, %g3
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andn %o1, (0x40 - 1), %o1
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and %g2, 7, %g2
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andncc %g3, 0x7, %g3
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fmovd %f0, %f2
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sub %g3, 0x8, %g3
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sub %o2, %GLOBAL_SPARE, %o2
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add %g1, %GLOBAL_SPARE, %g1
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subcc %o2, %g3, %o2
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EX_LD(LOAD_BLK(%o1, %f0))
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add %o1, 0x40, %o1
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add %g1, %g3, %g1
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EX_LD(LOAD_BLK(%o1, %f16))
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add %o1, 0x40, %o1
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sub %GLOBAL_SPARE, 0x80, %GLOBAL_SPARE
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EX_LD(LOAD_BLK(%o1, %f32))
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add %o1, 0x40, %o1
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/* There are 8 instances of the unrolled loop,
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* one for each possible alignment of the
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* source buffer. Each loop instance is 452
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* bytes.
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*/
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sll %g2, 3, %o3
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sub %o3, %g2, %o3
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sllx %o3, 4, %o3
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add %o3, %g2, %o3
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sllx %o3, 2, %g2
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1: rd %pc, %o3
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add %o3, %lo(1f - 1b), %o3
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jmpl %o3 + %g2, %g0
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nop
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.align 64
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1: FREG_FROB(f0, f2, f4, f6, f8, f10,f12,f14,f16)
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LOOP_CHUNK1(o1, o0, GLOBAL_SPARE, 1f)
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FREG_FROB(f16,f18,f20,f22,f24,f26,f28,f30,f32)
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LOOP_CHUNK2(o1, o0, GLOBAL_SPARE, 2f)
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FREG_FROB(f32,f34,f36,f38,f40,f42,f44,f46,f0)
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LOOP_CHUNK3(o1, o0, GLOBAL_SPARE, 3f)
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ba,pt %xcc, 1b+4
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faligndata %f0, %f2, %f48
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1: FREG_FROB(f16,f18,f20,f22,f24,f26,f28,f30,f32)
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STORE_SYNC(o0, f48)
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FREG_FROB(f32,f34,f36,f38,f40,f42,f44,f46,f0)
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STORE_JUMP(o0, f48, 40f)
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2: FREG_FROB(f32,f34,f36,f38,f40,f42,f44,f46,f0)
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STORE_SYNC(o0, f48)
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FREG_FROB(f0, f2, f4, f6, f8, f10,f12,f14,f16)
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STORE_JUMP(o0, f48, 48f)
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3: FREG_FROB(f0, f2, f4, f6, f8, f10,f12,f14,f16)
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STORE_SYNC(o0, f48)
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FREG_FROB(f16,f18,f20,f22,f24,f26,f28,f30,f32)
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STORE_JUMP(o0, f48, 56f)
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1: FREG_FROB(f2, f4, f6, f8, f10,f12,f14,f16,f18)
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LOOP_CHUNK1(o1, o0, GLOBAL_SPARE, 1f)
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FREG_FROB(f18,f20,f22,f24,f26,f28,f30,f32,f34)
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LOOP_CHUNK2(o1, o0, GLOBAL_SPARE, 2f)
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FREG_FROB(f34,f36,f38,f40,f42,f44,f46,f0, f2)
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LOOP_CHUNK3(o1, o0, GLOBAL_SPARE, 3f)
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ba,pt %xcc, 1b+4
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faligndata %f2, %f4, %f48
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1: FREG_FROB(f18,f20,f22,f24,f26,f28,f30,f32,f34)
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STORE_SYNC(o0, f48)
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FREG_FROB(f34,f36,f38,f40,f42,f44,f46,f0, f2)
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STORE_JUMP(o0, f48, 41f)
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2: FREG_FROB(f34,f36,f38,f40,f42,f44,f46,f0, f2)
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STORE_SYNC(o0, f48)
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FREG_FROB(f2, f4, f6, f8, f10,f12,f14,f16,f18)
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STORE_JUMP(o0, f48, 49f)
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3: FREG_FROB(f2, f4, f6, f8, f10,f12,f14,f16,f18)
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STORE_SYNC(o0, f48)
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FREG_FROB(f18,f20,f22,f24,f26,f28,f30,f32,f34)
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STORE_JUMP(o0, f48, 57f)
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1: FREG_FROB(f4, f6, f8, f10,f12,f14,f16,f18,f20)
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LOOP_CHUNK1(o1, o0, GLOBAL_SPARE, 1f)
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FREG_FROB(f20,f22,f24,f26,f28,f30,f32,f34,f36)
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LOOP_CHUNK2(o1, o0, GLOBAL_SPARE, 2f)
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FREG_FROB(f36,f38,f40,f42,f44,f46,f0, f2, f4)
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LOOP_CHUNK3(o1, o0, GLOBAL_SPARE, 3f)
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ba,pt %xcc, 1b+4
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faligndata %f4, %f6, %f48
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1: FREG_FROB(f20,f22,f24,f26,f28,f30,f32,f34,f36)
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STORE_SYNC(o0, f48)
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FREG_FROB(f36,f38,f40,f42,f44,f46,f0, f2, f4)
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STORE_JUMP(o0, f48, 42f)
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2: FREG_FROB(f36,f38,f40,f42,f44,f46,f0, f2, f4)
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STORE_SYNC(o0, f48)
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FREG_FROB(f4, f6, f8, f10,f12,f14,f16,f18,f20)
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STORE_JUMP(o0, f48, 50f)
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3: FREG_FROB(f4, f6, f8, f10,f12,f14,f16,f18,f20)
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STORE_SYNC(o0, f48)
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FREG_FROB(f20,f22,f24,f26,f28,f30,f32,f34,f36)
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STORE_JUMP(o0, f48, 58f)
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1: FREG_FROB(f6, f8, f10,f12,f14,f16,f18,f20,f22)
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LOOP_CHUNK1(o1, o0, GLOBAL_SPARE, 1f)
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FREG_FROB(f22,f24,f26,f28,f30,f32,f34,f36,f38)
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LOOP_CHUNK2(o1, o0, GLOBAL_SPARE, 2f)
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FREG_FROB(f38,f40,f42,f44,f46,f0, f2, f4, f6)
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LOOP_CHUNK3(o1, o0, GLOBAL_SPARE, 3f)
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ba,pt %xcc, 1b+4
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faligndata %f6, %f8, %f48
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1: FREG_FROB(f22,f24,f26,f28,f30,f32,f34,f36,f38)
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STORE_SYNC(o0, f48)
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FREG_FROB(f38,f40,f42,f44,f46,f0, f2, f4, f6)
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STORE_JUMP(o0, f48, 43f)
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2: FREG_FROB(f38,f40,f42,f44,f46,f0, f2, f4, f6)
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STORE_SYNC(o0, f48)
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FREG_FROB(f6, f8, f10,f12,f14,f16,f18,f20,f22)
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STORE_JUMP(o0, f48, 51f)
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3: FREG_FROB(f6, f8, f10,f12,f14,f16,f18,f20,f22)
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STORE_SYNC(o0, f48)
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FREG_FROB(f22,f24,f26,f28,f30,f32,f34,f36,f38)
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STORE_JUMP(o0, f48, 59f)
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1: FREG_FROB(f8, f10,f12,f14,f16,f18,f20,f22,f24)
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LOOP_CHUNK1(o1, o0, GLOBAL_SPARE, 1f)
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FREG_FROB(f24,f26,f28,f30,f32,f34,f36,f38,f40)
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LOOP_CHUNK2(o1, o0, GLOBAL_SPARE, 2f)
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FREG_FROB(f40,f42,f44,f46,f0, f2, f4, f6, f8)
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LOOP_CHUNK3(o1, o0, GLOBAL_SPARE, 3f)
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ba,pt %xcc, 1b+4
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faligndata %f8, %f10, %f48
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1: FREG_FROB(f24,f26,f28,f30,f32,f34,f36,f38,f40)
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STORE_SYNC(o0, f48)
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FREG_FROB(f40,f42,f44,f46,f0, f2, f4, f6, f8)
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STORE_JUMP(o0, f48, 44f)
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2: FREG_FROB(f40,f42,f44,f46,f0, f2, f4, f6, f8)
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STORE_SYNC(o0, f48)
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FREG_FROB(f8, f10,f12,f14,f16,f18,f20,f22,f24)
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STORE_JUMP(o0, f48, 52f)
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3: FREG_FROB(f8, f10,f12,f14,f16,f18,f20,f22,f24)
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STORE_SYNC(o0, f48)
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FREG_FROB(f24,f26,f28,f30,f32,f34,f36,f38,f40)
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STORE_JUMP(o0, f48, 60f)
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1: FREG_FROB(f10,f12,f14,f16,f18,f20,f22,f24,f26)
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LOOP_CHUNK1(o1, o0, GLOBAL_SPARE, 1f)
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FREG_FROB(f26,f28,f30,f32,f34,f36,f38,f40,f42)
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LOOP_CHUNK2(o1, o0, GLOBAL_SPARE, 2f)
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FREG_FROB(f42,f44,f46,f0, f2, f4, f6, f8, f10)
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LOOP_CHUNK3(o1, o0, GLOBAL_SPARE, 3f)
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ba,pt %xcc, 1b+4
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faligndata %f10, %f12, %f48
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1: FREG_FROB(f26,f28,f30,f32,f34,f36,f38,f40,f42)
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STORE_SYNC(o0, f48)
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FREG_FROB(f42,f44,f46,f0, f2, f4, f6, f8, f10)
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STORE_JUMP(o0, f48, 45f)
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2: FREG_FROB(f42,f44,f46,f0, f2, f4, f6, f8, f10)
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STORE_SYNC(o0, f48)
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FREG_FROB(f10,f12,f14,f16,f18,f20,f22,f24,f26)
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STORE_JUMP(o0, f48, 53f)
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3: FREG_FROB(f10,f12,f14,f16,f18,f20,f22,f24,f26)
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STORE_SYNC(o0, f48)
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FREG_FROB(f26,f28,f30,f32,f34,f36,f38,f40,f42)
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STORE_JUMP(o0, f48, 61f)
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1: FREG_FROB(f12,f14,f16,f18,f20,f22,f24,f26,f28)
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LOOP_CHUNK1(o1, o0, GLOBAL_SPARE, 1f)
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FREG_FROB(f28,f30,f32,f34,f36,f38,f40,f42,f44)
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LOOP_CHUNK2(o1, o0, GLOBAL_SPARE, 2f)
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FREG_FROB(f44,f46,f0, f2, f4, f6, f8, f10,f12)
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LOOP_CHUNK3(o1, o0, GLOBAL_SPARE, 3f)
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ba,pt %xcc, 1b+4
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faligndata %f12, %f14, %f48
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1: FREG_FROB(f28,f30,f32,f34,f36,f38,f40,f42,f44)
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STORE_SYNC(o0, f48)
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FREG_FROB(f44,f46,f0, f2, f4, f6, f8, f10,f12)
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STORE_JUMP(o0, f48, 46f)
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2: FREG_FROB(f44,f46,f0, f2, f4, f6, f8, f10,f12)
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STORE_SYNC(o0, f48)
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FREG_FROB(f12,f14,f16,f18,f20,f22,f24,f26,f28)
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STORE_JUMP(o0, f48, 54f)
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3: FREG_FROB(f12,f14,f16,f18,f20,f22,f24,f26,f28)
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STORE_SYNC(o0, f48)
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FREG_FROB(f28,f30,f32,f34,f36,f38,f40,f42,f44)
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STORE_JUMP(o0, f48, 62f)
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1: FREG_FROB(f14,f16,f18,f20,f22,f24,f26,f28,f30)
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LOOP_CHUNK1(o1, o0, GLOBAL_SPARE, 1f)
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FREG_FROB(f30,f32,f34,f36,f38,f40,f42,f44,f46)
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LOOP_CHUNK2(o1, o0, GLOBAL_SPARE, 2f)
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FREG_FROB(f46,f0, f2, f4, f6, f8, f10,f12,f14)
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LOOP_CHUNK3(o1, o0, GLOBAL_SPARE, 3f)
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ba,pt %xcc, 1b+4
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faligndata %f14, %f16, %f48
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1: FREG_FROB(f30,f32,f34,f36,f38,f40,f42,f44,f46)
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STORE_SYNC(o0, f48)
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FREG_FROB(f46,f0, f2, f4, f6, f8, f10,f12,f14)
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STORE_JUMP(o0, f48, 47f)
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2: FREG_FROB(f46,f0, f2, f4, f6, f8, f10,f12,f14)
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STORE_SYNC(o0, f48)
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FREG_FROB(f14,f16,f18,f20,f22,f24,f26,f28,f30)
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STORE_JUMP(o0, f48, 55f)
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3: FREG_FROB(f14,f16,f18,f20,f22,f24,f26,f28,f30)
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STORE_SYNC(o0, f48)
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FREG_FROB(f30,f32,f34,f36,f38,f40,f42,f44,f46)
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STORE_JUMP(o0, f48, 63f)
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40: FINISH_VISCHUNK(o0, f0, f2, g3)
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41: FINISH_VISCHUNK(o0, f2, f4, g3)
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42: FINISH_VISCHUNK(o0, f4, f6, g3)
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43: FINISH_VISCHUNK(o0, f6, f8, g3)
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44: FINISH_VISCHUNK(o0, f8, f10, g3)
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45: FINISH_VISCHUNK(o0, f10, f12, g3)
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46: FINISH_VISCHUNK(o0, f12, f14, g3)
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47: UNEVEN_VISCHUNK(o0, f14, f0, g3)
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48: FINISH_VISCHUNK(o0, f16, f18, g3)
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49: FINISH_VISCHUNK(o0, f18, f20, g3)
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50: FINISH_VISCHUNK(o0, f20, f22, g3)
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51: FINISH_VISCHUNK(o0, f22, f24, g3)
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52: FINISH_VISCHUNK(o0, f24, f26, g3)
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53: FINISH_VISCHUNK(o0, f26, f28, g3)
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54: FINISH_VISCHUNK(o0, f28, f30, g3)
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55: UNEVEN_VISCHUNK(o0, f30, f0, g3)
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56: FINISH_VISCHUNK(o0, f32, f34, g3)
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57: FINISH_VISCHUNK(o0, f34, f36, g3)
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58: FINISH_VISCHUNK(o0, f36, f38, g3)
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59: FINISH_VISCHUNK(o0, f38, f40, g3)
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60: FINISH_VISCHUNK(o0, f40, f42, g3)
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61: FINISH_VISCHUNK(o0, f42, f44, g3)
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62: FINISH_VISCHUNK(o0, f44, f46, g3)
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63: UNEVEN_VISCHUNK_LAST(o0, f46, f0, g3)
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93: EX_LD(LOAD(ldd, %o1, %f2))
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add %o1, 8, %o1
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subcc %g3, 8, %g3
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faligndata %f0, %f2, %f8
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EX_ST(STORE(std, %f8, %o0))
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bl,pn %xcc, 95f
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add %o0, 8, %o0
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EX_LD(LOAD(ldd, %o1, %f0))
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add %o1, 8, %o1
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subcc %g3, 8, %g3
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faligndata %f2, %f0, %f8
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EX_ST(STORE(std, %f8, %o0))
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bge,pt %xcc, 93b
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add %o0, 8, %o0
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95: brz,pt %o2, 2f
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mov %g1, %o1
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1: EX_LD(LOAD(ldub, %o1, %o3))
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add %o1, 1, %o1
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subcc %o2, 1, %o2
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EX_ST(STORE(stb, %o3, %o0))
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bne,pt %xcc, 1b
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add %o0, 1, %o0
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2: membar #StoreLoad | #StoreStore
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VISExit
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retl
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mov EX_RETVAL(%o4), %o0
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.align 64
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70: /* 16 < len <= (5 * 64) */
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bne,pn %XCC, 75f
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sub %o0, %o1, %o3
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72: andn %o2, 0xf, %GLOBAL_SPARE
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and %o2, 0xf, %o2
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1: EX_LD(LOAD(ldx, %o1 + 0x00, %o5))
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EX_LD(LOAD(ldx, %o1 + 0x08, %g1))
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subcc %GLOBAL_SPARE, 0x10, %GLOBAL_SPARE
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EX_ST(STORE(stx, %o5, %o1 + %o3))
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add %o1, 0x8, %o1
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EX_ST(STORE(stx, %g1, %o1 + %o3))
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bgu,pt %XCC, 1b
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add %o1, 0x8, %o1
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73: andcc %o2, 0x8, %g0
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be,pt %XCC, 1f
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nop
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EX_LD(LOAD(ldx, %o1, %o5))
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sub %o2, 0x8, %o2
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EX_ST(STORE(stx, %o5, %o1 + %o3))
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add %o1, 0x8, %o1
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1: andcc %o2, 0x4, %g0
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be,pt %XCC, 1f
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nop
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EX_LD(LOAD(lduw, %o1, %o5))
|
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sub %o2, 0x4, %o2
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EX_ST(STORE(stw, %o5, %o1 + %o3))
|
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add %o1, 0x4, %o1
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1: cmp %o2, 0
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be,pt %XCC, 85f
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nop
|
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ba,pt %xcc, 90f
|
|
nop
|
|
|
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75: andcc %o0, 0x7, %g1
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sub %g1, 0x8, %g1
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be,pn %icc, 2f
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sub %g0, %g1, %g1
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sub %o2, %g1, %o2
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|
|
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1: EX_LD(LOAD(ldub, %o1, %o5))
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subcc %g1, 1, %g1
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EX_ST(STORE(stb, %o5, %o1 + %o3))
|
|
bgu,pt %icc, 1b
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|
add %o1, 1, %o1
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2: add %o1, %o3, %o0
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andcc %o1, 0x7, %g1
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|
bne,pt %icc, 8f
|
|
sll %g1, 3, %g1
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|
|
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cmp %o2, 16
|
|
bgeu,pt %icc, 72b
|
|
nop
|
|
ba,a,pt %xcc, 73b
|
|
|
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8: mov 64, %o3
|
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andn %o1, 0x7, %o1
|
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EX_LD(LOAD(ldx, %o1, %g2))
|
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sub %o3, %g1, %o3
|
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andn %o2, 0x7, %GLOBAL_SPARE
|
|
sllx %g2, %g1, %g2
|
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1: EX_LD(LOAD(ldx, %o1 + 0x8, %g3))
|
|
subcc %GLOBAL_SPARE, 0x8, %GLOBAL_SPARE
|
|
add %o1, 0x8, %o1
|
|
srlx %g3, %o3, %o5
|
|
or %o5, %g2, %o5
|
|
EX_ST(STORE(stx, %o5, %o0))
|
|
add %o0, 0x8, %o0
|
|
bgu,pt %icc, 1b
|
|
sllx %g3, %g1, %g2
|
|
|
|
srl %g1, 3, %g1
|
|
andcc %o2, 0x7, %o2
|
|
be,pn %icc, 85f
|
|
add %o1, %g1, %o1
|
|
ba,pt %xcc, 90f
|
|
sub %o0, %o1, %o3
|
|
|
|
.align 64
|
|
80: /* 0 < len <= 16 */
|
|
andcc %o3, 0x3, %g0
|
|
bne,pn %XCC, 90f
|
|
sub %o0, %o1, %o3
|
|
|
|
1: EX_LD(LOAD(lduw, %o1, %g1))
|
|
subcc %o2, 4, %o2
|
|
EX_ST(STORE(stw, %g1, %o1 + %o3))
|
|
bgu,pt %XCC, 1b
|
|
add %o1, 4, %o1
|
|
|
|
85: retl
|
|
mov EX_RETVAL(%o4), %o0
|
|
|
|
.align 32
|
|
90: EX_LD(LOAD(ldub, %o1, %g1))
|
|
subcc %o2, 1, %o2
|
|
EX_ST(STORE(stb, %g1, %o1 + %o3))
|
|
bgu,pt %XCC, 90b
|
|
add %o1, 1, %o1
|
|
retl
|
|
mov EX_RETVAL(%o4), %o0
|
|
|
|
.size FUNC_NAME, .-FUNC_NAME
|