gcc/libgcc/config/avr/t-avr
Georg-Johann Lay 989bdb7461 re PR target/49313 (Inefficient libgcc implementations for avr)
PR target/49313
	* config/avr/t-avr (LIB2FUNCS_EXCLUDE): Add _moddi3, _umoddi3.
	(LIB1ASMFUNCS): Add _divdi3, _udivdi3, _udivmod64, _negdi2.
	* config/avr/lib1funcs.S (wmov): New assembler macro.
	(__umoddi3, __udivdi3, __udivdi3_umoddi3): New functions.
	(__moddi3, __divdi3, __divdi3_moddi3): New functions.
	(__udivmod64): New function.
	(__negdi2): New function.

From-SVN: r181551
2011-11-21 08:56:44 +00:00

81 lines
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LIB1ASMSRC = avr/lib1funcs.S
LIB1ASMFUNCS = \
_mulqi3 \
_mulhi3 \
_mulhisi3 \
_umulhisi3 \
_usmulhisi3 \
_muluhisi3 \
_mulshisi3 \
_mulsi3 \
_udivmodqi4 \
_divmodqi4 \
_udivmodhi4 \
_divmodhi4 \
_divmodpsi4 _udivmodpsi4 \
_udivmodsi4 \
_divmodsi4 \
_divdi3 _udivdi3 \
_udivmod64 \
_negdi2 \
_prologue \
_epilogue \
_exit \
_cleanup \
_tablejump \
_tablejump_elpm \
_load_3 _load_4 \
_xload_2 _xload_3 _xload_4 \
_copy_data \
_clear_bss \
_ctors \
_dtors \
_ffssi2 \
_ffshi2 \
_loop_ffsqi2 \
_ctzsi2 \
_ctzhi2 \
_clzdi2 \
_clzsi2 \
_clzhi2 \
_paritydi2 \
_paritysi2 \
_parityhi2 \
_popcounthi2 \
_popcountsi2 \
_popcountdi2 \
_popcountqi2 \
_bswapsi2 \
_bswapdi2 \
_ashldi3 \
_ashrdi3 \
_lshrdi3 \
_fmul _fmuls _fmulsu
LIB2FUNCS_EXCLUDE = \
_moddi3 _umoddi3 \
_clz
# We do not have the DF type.
# Most of the C functions in libgcc2 use almost all registers,
# so use -mcall-prologues for smaller code size.
HOST_LIBGCC2_CFLAGS += -DDF=SF -Dinhibit_libc -mcall-prologues -Os
# Extra 16-bit integer functions.
intfuncs16 = _absvXX2 _addvXX3 _subvXX3 _mulvXX3 _negvXX2 _clrsbXX2
hiintfuncs16 = $(subst XX,hi,$(intfuncs16))
siintfuncs16 = $(subst XX,si,$(intfuncs16))
iter-items := $(hiintfuncs16)
iter-labels := $(siintfuncs16)
iter-sizes := $(patsubst %,2,$(siintfuncs16)) $(patsubst %,2,$(hiintfuncs16))
include $(srcdir)/empty.mk $(patsubst %,$(srcdir)/siditi-object.mk,$(iter-items))
libgcc-objects += $(patsubst %,%$(objext),$(hiintfuncs16))
ifeq ($(enable_shared),yes)
libgcc-s-objects += $(patsubst %,%_s$(objext),$(hiintfuncs16))
endif