mirror of
git://sourceware.org/git/newlib-cygwin.git
synced 2025-01-19 04:49:25 +08:00
aarch64: Remove duplicated optimized memmove()
The optimized aarch64/memcpy.S already provides a memmove() implementation.
This commit is contained in:
Sebastian Huber
parent
61e52c4d60
commit
3cacedbbac
@ -602,8 +602,7 @@ check_PROGRAMS =
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@HAVE_LIBC_MACHINE_AARCH64_TRUE@ libc/machine/aarch64/memcmp.S \
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@HAVE_LIBC_MACHINE_AARCH64_TRUE@ libc/machine/aarch64/memcpy-stub.c \
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@HAVE_LIBC_MACHINE_AARCH64_TRUE@ libc/machine/aarch64/memcpy.S \
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@HAVE_LIBC_MACHINE_AARCH64_TRUE@ libc/machine/aarch64/memmove-stub.c \
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@HAVE_LIBC_MACHINE_AARCH64_TRUE@ libc/machine/aarch64/memmove.S \
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@HAVE_LIBC_MACHINE_AARCH64_TRUE@ libc/machine/aarch64/memmove.c \
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@HAVE_LIBC_MACHINE_AARCH64_TRUE@ libc/machine/aarch64/memrchr-stub.c \
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@HAVE_LIBC_MACHINE_AARCH64_TRUE@ libc/machine/aarch64/memrchr.S \
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@HAVE_LIBC_MACHINE_AARCH64_TRUE@ libc/machine/aarch64/memset-stub.c \
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@ -1864,7 +1863,6 @@ am__objects_51 = libc/ssp/libc_a-chk_fail.$(OBJEXT) \
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@HAVE_LIBC_MACHINE_AARCH64_TRUE@ libc/machine/aarch64/libc_a-memcmp.$(OBJEXT) \
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@HAVE_LIBC_MACHINE_AARCH64_TRUE@ libc/machine/aarch64/libc_a-memcpy-stub.$(OBJEXT) \
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@HAVE_LIBC_MACHINE_AARCH64_TRUE@ libc/machine/aarch64/libc_a-memcpy.$(OBJEXT) \
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@HAVE_LIBC_MACHINE_AARCH64_TRUE@ libc/machine/aarch64/libc_a-memmove-stub.$(OBJEXT) \
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@HAVE_LIBC_MACHINE_AARCH64_TRUE@ libc/machine/aarch64/libc_a-memmove.$(OBJEXT) \
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@HAVE_LIBC_MACHINE_AARCH64_TRUE@ libc/machine/aarch64/libc_a-memrchr-stub.$(OBJEXT) \
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@HAVE_LIBC_MACHINE_AARCH64_TRUE@ libc/machine/aarch64/libc_a-memrchr.$(OBJEXT) \
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@ -8058,9 +8056,6 @@ libc/machine/aarch64/libc_a-memcpy-stub.$(OBJEXT): \
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libc/machine/aarch64/libc_a-memcpy.$(OBJEXT): \
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libc/machine/aarch64/$(am__dirstamp) \
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libc/machine/aarch64/$(DEPDIR)/$(am__dirstamp)
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libc/machine/aarch64/libc_a-memmove-stub.$(OBJEXT): \
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libc/machine/aarch64/$(am__dirstamp) \
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libc/machine/aarch64/$(DEPDIR)/$(am__dirstamp)
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libc/machine/aarch64/libc_a-memmove.$(OBJEXT): \
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libc/machine/aarch64/$(am__dirstamp) \
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libc/machine/aarch64/$(DEPDIR)/$(am__dirstamp)
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@ -12774,7 +12769,6 @@ distclean-compile:
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@AMDEP_TRUE@@am__include@ @am__quote@libc/machine/aarch64/$(DEPDIR)/libc_a-memcmp.Po@am__quote@
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@AMDEP_TRUE@@am__include@ @am__quote@libc/machine/aarch64/$(DEPDIR)/libc_a-memcpy-stub.Po@am__quote@
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@AMDEP_TRUE@@am__include@ @am__quote@libc/machine/aarch64/$(DEPDIR)/libc_a-memcpy.Po@am__quote@
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@AMDEP_TRUE@@am__include@ @am__quote@libc/machine/aarch64/$(DEPDIR)/libc_a-memmove-stub.Po@am__quote@
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@AMDEP_TRUE@@am__include@ @am__quote@libc/machine/aarch64/$(DEPDIR)/libc_a-memmove.Po@am__quote@
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@AMDEP_TRUE@@am__include@ @am__quote@libc/machine/aarch64/$(DEPDIR)/libc_a-memrchr-stub.Po@am__quote@
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@AMDEP_TRUE@@am__include@ @am__quote@libc/machine/aarch64/$(DEPDIR)/libc_a-memrchr.Po@am__quote@
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@ -16754,20 +16748,6 @@ libc/machine/aarch64/libc_a-memcpy.obj: libc/machine/aarch64/memcpy.S
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@AMDEP_TRUE@@am__fastdepCCAS_FALSE@ DEPDIR=$(DEPDIR) $(CCASDEPMODE) $(depcomp) @AMDEPBACKSLASH@
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@am__fastdepCCAS_FALSE@ $(AM_V_CPPAS@am__nodep@)$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libc_a_CPPFLAGS) $(CPPFLAGS) $(libc_a_CCASFLAGS) $(CCASFLAGS) -c -o libc/machine/aarch64/libc_a-memcpy.obj `if test -f 'libc/machine/aarch64/memcpy.S'; then $(CYGPATH_W) 'libc/machine/aarch64/memcpy.S'; else $(CYGPATH_W) '$(srcdir)/libc/machine/aarch64/memcpy.S'; fi`
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libc/machine/aarch64/libc_a-memmove.o: libc/machine/aarch64/memmove.S
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@am__fastdepCCAS_TRUE@ $(AM_V_CPPAS)$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libc_a_CPPFLAGS) $(CPPFLAGS) $(libc_a_CCASFLAGS) $(CCASFLAGS) -MT libc/machine/aarch64/libc_a-memmove.o -MD -MP -MF libc/machine/aarch64/$(DEPDIR)/libc_a-memmove.Tpo -c -o libc/machine/aarch64/libc_a-memmove.o `test -f 'libc/machine/aarch64/memmove.S' || echo '$(srcdir)/'`libc/machine/aarch64/memmove.S
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@am__fastdepCCAS_TRUE@ $(AM_V_at)$(am__mv) libc/machine/aarch64/$(DEPDIR)/libc_a-memmove.Tpo libc/machine/aarch64/$(DEPDIR)/libc_a-memmove.Po
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@AMDEP_TRUE@@am__fastdepCCAS_FALSE@ $(AM_V_CPPAS)source='libc/machine/aarch64/memmove.S' object='libc/machine/aarch64/libc_a-memmove.o' libtool=no @AMDEPBACKSLASH@
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@AMDEP_TRUE@@am__fastdepCCAS_FALSE@ DEPDIR=$(DEPDIR) $(CCASDEPMODE) $(depcomp) @AMDEPBACKSLASH@
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@am__fastdepCCAS_FALSE@ $(AM_V_CPPAS@am__nodep@)$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libc_a_CPPFLAGS) $(CPPFLAGS) $(libc_a_CCASFLAGS) $(CCASFLAGS) -c -o libc/machine/aarch64/libc_a-memmove.o `test -f 'libc/machine/aarch64/memmove.S' || echo '$(srcdir)/'`libc/machine/aarch64/memmove.S
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libc/machine/aarch64/libc_a-memmove.obj: libc/machine/aarch64/memmove.S
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@am__fastdepCCAS_TRUE@ $(AM_V_CPPAS)$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libc_a_CPPFLAGS) $(CPPFLAGS) $(libc_a_CCASFLAGS) $(CCASFLAGS) -MT libc/machine/aarch64/libc_a-memmove.obj -MD -MP -MF libc/machine/aarch64/$(DEPDIR)/libc_a-memmove.Tpo -c -o libc/machine/aarch64/libc_a-memmove.obj `if test -f 'libc/machine/aarch64/memmove.S'; then $(CYGPATH_W) 'libc/machine/aarch64/memmove.S'; else $(CYGPATH_W) '$(srcdir)/libc/machine/aarch64/memmove.S'; fi`
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@am__fastdepCCAS_TRUE@ $(AM_V_at)$(am__mv) libc/machine/aarch64/$(DEPDIR)/libc_a-memmove.Tpo libc/machine/aarch64/$(DEPDIR)/libc_a-memmove.Po
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@AMDEP_TRUE@@am__fastdepCCAS_FALSE@ $(AM_V_CPPAS)source='libc/machine/aarch64/memmove.S' object='libc/machine/aarch64/libc_a-memmove.obj' libtool=no @AMDEPBACKSLASH@
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@AMDEP_TRUE@@am__fastdepCCAS_FALSE@ DEPDIR=$(DEPDIR) $(CCASDEPMODE) $(depcomp) @AMDEPBACKSLASH@
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@am__fastdepCCAS_FALSE@ $(AM_V_CPPAS@am__nodep@)$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libc_a_CPPFLAGS) $(CPPFLAGS) $(libc_a_CCASFLAGS) $(CCASFLAGS) -c -o libc/machine/aarch64/libc_a-memmove.obj `if test -f 'libc/machine/aarch64/memmove.S'; then $(CYGPATH_W) 'libc/machine/aarch64/memmove.S'; else $(CYGPATH_W) '$(srcdir)/libc/machine/aarch64/memmove.S'; fi`
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libc/machine/aarch64/libc_a-memrchr.o: libc/machine/aarch64/memrchr.S
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@am__fastdepCCAS_TRUE@ $(AM_V_CPPAS)$(CCAS) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libc_a_CPPFLAGS) $(CPPFLAGS) $(libc_a_CCASFLAGS) $(CCASFLAGS) -MT libc/machine/aarch64/libc_a-memrchr.o -MD -MP -MF libc/machine/aarch64/$(DEPDIR)/libc_a-memrchr.Tpo -c -o libc/machine/aarch64/libc_a-memrchr.o `test -f 'libc/machine/aarch64/memrchr.S' || echo '$(srcdir)/'`libc/machine/aarch64/memrchr.S
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@am__fastdepCCAS_TRUE@ $(AM_V_at)$(am__mv) libc/machine/aarch64/$(DEPDIR)/libc_a-memrchr.Tpo libc/machine/aarch64/$(DEPDIR)/libc_a-memrchr.Po
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@ -33164,19 +33144,19 @@ libc/machine/aarch64/libc_a-memcpy-stub.obj: libc/machine/aarch64/memcpy-stub.c
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@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
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@am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libc_a_CPPFLAGS) $(CPPFLAGS) $(libc_a_CFLAGS) $(CFLAGS) -c -o libc/machine/aarch64/libc_a-memcpy-stub.obj `if test -f 'libc/machine/aarch64/memcpy-stub.c'; then $(CYGPATH_W) 'libc/machine/aarch64/memcpy-stub.c'; else $(CYGPATH_W) '$(srcdir)/libc/machine/aarch64/memcpy-stub.c'; fi`
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libc/machine/aarch64/libc_a-memmove-stub.o: libc/machine/aarch64/memmove-stub.c
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@am__fastdepCC_TRUE@ $(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libc_a_CPPFLAGS) $(CPPFLAGS) $(libc_a_CFLAGS) $(CFLAGS) -MT libc/machine/aarch64/libc_a-memmove-stub.o -MD -MP -MF libc/machine/aarch64/$(DEPDIR)/libc_a-memmove-stub.Tpo -c -o libc/machine/aarch64/libc_a-memmove-stub.o `test -f 'libc/machine/aarch64/memmove-stub.c' || echo '$(srcdir)/'`libc/machine/aarch64/memmove-stub.c
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@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) libc/machine/aarch64/$(DEPDIR)/libc_a-memmove-stub.Tpo libc/machine/aarch64/$(DEPDIR)/libc_a-memmove-stub.Po
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@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(AM_V_CC)source='libc/machine/aarch64/memmove-stub.c' object='libc/machine/aarch64/libc_a-memmove-stub.o' libtool=no @AMDEPBACKSLASH@
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libc/machine/aarch64/libc_a-memmove.o: libc/machine/aarch64/memmove.c
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@am__fastdepCC_TRUE@ $(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libc_a_CPPFLAGS) $(CPPFLAGS) $(libc_a_CFLAGS) $(CFLAGS) -MT libc/machine/aarch64/libc_a-memmove.o -MD -MP -MF libc/machine/aarch64/$(DEPDIR)/libc_a-memmove.Tpo -c -o libc/machine/aarch64/libc_a-memmove.o `test -f 'libc/machine/aarch64/memmove.c' || echo '$(srcdir)/'`libc/machine/aarch64/memmove.c
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@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) libc/machine/aarch64/$(DEPDIR)/libc_a-memmove.Tpo libc/machine/aarch64/$(DEPDIR)/libc_a-memmove.Po
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@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(AM_V_CC)source='libc/machine/aarch64/memmove.c' object='libc/machine/aarch64/libc_a-memmove.o' libtool=no @AMDEPBACKSLASH@
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@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
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@am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libc_a_CPPFLAGS) $(CPPFLAGS) $(libc_a_CFLAGS) $(CFLAGS) -c -o libc/machine/aarch64/libc_a-memmove-stub.o `test -f 'libc/machine/aarch64/memmove-stub.c' || echo '$(srcdir)/'`libc/machine/aarch64/memmove-stub.c
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@am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libc_a_CPPFLAGS) $(CPPFLAGS) $(libc_a_CFLAGS) $(CFLAGS) -c -o libc/machine/aarch64/libc_a-memmove.o `test -f 'libc/machine/aarch64/memmove.c' || echo '$(srcdir)/'`libc/machine/aarch64/memmove.c
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libc/machine/aarch64/libc_a-memmove-stub.obj: libc/machine/aarch64/memmove-stub.c
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@am__fastdepCC_TRUE@ $(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libc_a_CPPFLAGS) $(CPPFLAGS) $(libc_a_CFLAGS) $(CFLAGS) -MT libc/machine/aarch64/libc_a-memmove-stub.obj -MD -MP -MF libc/machine/aarch64/$(DEPDIR)/libc_a-memmove-stub.Tpo -c -o libc/machine/aarch64/libc_a-memmove-stub.obj `if test -f 'libc/machine/aarch64/memmove-stub.c'; then $(CYGPATH_W) 'libc/machine/aarch64/memmove-stub.c'; else $(CYGPATH_W) '$(srcdir)/libc/machine/aarch64/memmove-stub.c'; fi`
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@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) libc/machine/aarch64/$(DEPDIR)/libc_a-memmove-stub.Tpo libc/machine/aarch64/$(DEPDIR)/libc_a-memmove-stub.Po
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@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(AM_V_CC)source='libc/machine/aarch64/memmove-stub.c' object='libc/machine/aarch64/libc_a-memmove-stub.obj' libtool=no @AMDEPBACKSLASH@
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libc/machine/aarch64/libc_a-memmove.obj: libc/machine/aarch64/memmove.c
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@am__fastdepCC_TRUE@ $(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libc_a_CPPFLAGS) $(CPPFLAGS) $(libc_a_CFLAGS) $(CFLAGS) -MT libc/machine/aarch64/libc_a-memmove.obj -MD -MP -MF libc/machine/aarch64/$(DEPDIR)/libc_a-memmove.Tpo -c -o libc/machine/aarch64/libc_a-memmove.obj `if test -f 'libc/machine/aarch64/memmove.c'; then $(CYGPATH_W) 'libc/machine/aarch64/memmove.c'; else $(CYGPATH_W) '$(srcdir)/libc/machine/aarch64/memmove.c'; fi`
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@am__fastdepCC_TRUE@ $(AM_V_at)$(am__mv) libc/machine/aarch64/$(DEPDIR)/libc_a-memmove.Tpo libc/machine/aarch64/$(DEPDIR)/libc_a-memmove.Po
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@AMDEP_TRUE@@am__fastdepCC_FALSE@ $(AM_V_CC)source='libc/machine/aarch64/memmove.c' object='libc/machine/aarch64/libc_a-memmove.obj' libtool=no @AMDEPBACKSLASH@
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@AMDEP_TRUE@@am__fastdepCC_FALSE@ DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
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@am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libc_a_CPPFLAGS) $(CPPFLAGS) $(libc_a_CFLAGS) $(CFLAGS) -c -o libc/machine/aarch64/libc_a-memmove-stub.obj `if test -f 'libc/machine/aarch64/memmove-stub.c'; then $(CYGPATH_W) 'libc/machine/aarch64/memmove-stub.c'; else $(CYGPATH_W) '$(srcdir)/libc/machine/aarch64/memmove-stub.c'; fi`
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@am__fastdepCC_FALSE@ $(AM_V_CC@am__nodep@)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libc_a_CPPFLAGS) $(CPPFLAGS) $(libc_a_CFLAGS) $(CFLAGS) -c -o libc/machine/aarch64/libc_a-memmove.obj `if test -f 'libc/machine/aarch64/memmove.c'; then $(CYGPATH_W) 'libc/machine/aarch64/memmove.c'; else $(CYGPATH_W) '$(srcdir)/libc/machine/aarch64/memmove.c'; fi`
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libc/machine/aarch64/libc_a-memrchr-stub.o: libc/machine/aarch64/memrchr-stub.c
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@am__fastdepCC_TRUE@ $(AM_V_CC)$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libc_a_CPPFLAGS) $(CPPFLAGS) $(libc_a_CFLAGS) $(CFLAGS) -MT libc/machine/aarch64/libc_a-memrchr-stub.o -MD -MP -MF libc/machine/aarch64/$(DEPDIR)/libc_a-memrchr-stub.Tpo -c -o libc/machine/aarch64/libc_a-memrchr-stub.o `test -f 'libc/machine/aarch64/memrchr-stub.c' || echo '$(srcdir)/'`libc/machine/aarch64/memrchr-stub.c
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@ -5,8 +5,7 @@ libc_a_SOURCES += \
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%D%/memcmp.S \
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%D%/memcpy-stub.c \
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%D%/memcpy.S \
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%D%/memmove-stub.c \
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%D%/memmove.S \
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%D%/memmove.c \
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%D%/memrchr-stub.c \
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%D%/memrchr.S \
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%D%/memset-stub.c \
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@ -1,155 +0,0 @@
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/* Copyright (c) 2013, Linaro Limited
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
|
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modification, are permitted provided that the following conditions are met:
|
||||
* Redistributions of source code must retain the above copyright
|
||||
notice, this list of conditions and the following disclaimer.
|
||||
* Redistributions in binary form must reproduce the above copyright
|
||||
notice, this list of conditions and the following disclaimer in the
|
||||
documentation and/or other materials provided with the distribution.
|
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* Neither the name of the Linaro nor the
|
||||
names of its contributors may be used to endorse or promote products
|
||||
derived from this software without specific prior written permission.
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|
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
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/*
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* Copyright (c) 2015 ARM Ltd
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. The name of the company may not be used to endorse or promote
|
||||
* products derived from this software without specific prior written
|
||||
* permission.
|
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*
|
||||
* THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
||||
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
|
||||
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||||
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
||||
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
||||
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||||
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
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|
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/* Assumptions:
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*
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* ARMv8-a, AArch64, unaligned accesses
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*/
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#if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED))
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/* See memmove-stub.c */
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#else
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.macro def_fn f p2align=0
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.text
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.p2align \p2align
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.global \f
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.type \f, %function
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\f:
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.endm
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/* Parameters and result. */
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#define dstin x0
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#define src x1
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#define count x2
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#define srcend x3
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#define dstend x4
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#define tmp1 x5
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#define A_l x6
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#define A_h x7
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#define B_l x8
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#define B_h x9
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#define C_l x10
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#define C_h x11
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#define D_l x12
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#define D_h x13
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#define E_l count
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#define E_h tmp1
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/* All memmoves up to 96 bytes are done by memcpy as it supports overlaps.
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Larger backwards copies are also handled by memcpy. The only remaining
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case is forward large copies. The destination is aligned, and an
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unrolled loop processes 64 bytes per iteration.
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*/
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def_fn memmove, 6
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sub tmp1, dstin, src
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cmp count, 96
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ccmp tmp1, count, 2, hi
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b.hs memcpy
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cbz tmp1, 3f
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add dstend, dstin, count
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add srcend, src, count
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/* Align dstend to 16 byte alignment so that we don't cross cache line
|
||||
boundaries on both loads and stores. There are at least 96 bytes
|
||||
to copy, so copy 16 bytes unaligned and then align. The loop
|
||||
copies 64 bytes per iteration and prefetches one iteration ahead. */
|
||||
|
||||
and tmp1, dstend, 15
|
||||
ldp D_l, D_h, [srcend, -16]
|
||||
sub srcend, srcend, tmp1
|
||||
sub count, count, tmp1
|
||||
ldp A_l, A_h, [srcend, -16]
|
||||
stp D_l, D_h, [dstend, -16]
|
||||
ldp B_l, B_h, [srcend, -32]
|
||||
ldp C_l, C_h, [srcend, -48]
|
||||
ldp D_l, D_h, [srcend, -64]!
|
||||
sub dstend, dstend, tmp1
|
||||
subs count, count, 128
|
||||
b.ls 2f
|
||||
nop
|
||||
1:
|
||||
stp A_l, A_h, [dstend, -16]
|
||||
ldp A_l, A_h, [srcend, -16]
|
||||
stp B_l, B_h, [dstend, -32]
|
||||
ldp B_l, B_h, [srcend, -32]
|
||||
stp C_l, C_h, [dstend, -48]
|
||||
ldp C_l, C_h, [srcend, -48]
|
||||
stp D_l, D_h, [dstend, -64]!
|
||||
ldp D_l, D_h, [srcend, -64]!
|
||||
subs count, count, 64
|
||||
b.hi 1b
|
||||
|
||||
/* Write the last full set of 64 bytes. The remainder is at most 64
|
||||
bytes, so it is safe to always copy 64 bytes from the start even if
|
||||
there is just 1 byte left. */
|
||||
2:
|
||||
ldp E_l, E_h, [src, 48]
|
||||
stp A_l, A_h, [dstend, -16]
|
||||
ldp A_l, A_h, [src, 32]
|
||||
stp B_l, B_h, [dstend, -32]
|
||||
ldp B_l, B_h, [src, 16]
|
||||
stp C_l, C_h, [dstend, -48]
|
||||
ldp C_l, C_h, [src]
|
||||
stp D_l, D_h, [dstend, -64]
|
||||
stp E_l, E_h, [dstin, 48]
|
||||
stp A_l, A_h, [dstin, 32]
|
||||
stp B_l, B_h, [dstin, 16]
|
||||
stp C_l, C_h, [dstin]
|
||||
3: ret
|
||||
|
||||
.size memmove, . - memmove
|
||||
#endif
|
||||
@ -27,5 +27,5 @@
|
||||
#if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED))
|
||||
# include "../../string/memmove.c"
|
||||
#else
|
||||
/* See memmove.S */
|
||||
/* See memcpy.S */
|
||||
#endif
|
||||
Loading…
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Reference in New Issue
Block a user