29dc90a580
> (clrsb:m x) > Represents the number of redundant leading sign bits in x, represented > as an integer of mode m, starting at the most significant bit position. This explanation is just what the NSA instruction (not ever emitted before) calculates in Xtensa ISA. gcc/ChangeLog: * config/xtensa/xtensa.md (clrsbsi2): New insn pattern. libgcc/ChangeLog: * config/xtensa/lib1funcs.S (__clrsbsi2): New function. * config/xtensa/t-xtensa (LIB1ASMFUNCS): Add _clrsbsi2.
16 lines
613 B
Text
16 lines
613 B
Text
LIB1ASMSRC = xtensa/lib1funcs.S
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LIB1ASMFUNCS = _mulsi3 _divsi3 _modsi3 _udivsi3 _umodsi3 \
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_umulsidi3 _clz _clrsbsi2 _clzsi2 _ctzsi2 _ffssi2 \
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_ashldi3 _ashrdi3 _lshrdi3 \
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_bswapsi2 _bswapdi2 \
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_negsf2 _addsubsf3 _mulsf3 _divsf3 _cmpsf2 _fixsfsi _fixsfdi \
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_fixunssfsi _fixunssfdi _floatsisf _floatunsisf \
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_sqrtf _recipsf2 _rsqrtsf2 \
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_floatdisf _floatundisf \
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_negdf2 _addsubdf3 _muldf3 _divdf3 _cmpdf2 _fixdfsi _fixdfdi \
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_fixunsdfsi _fixunsdfdi _floatsidf _floatunsidf \
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_floatdidf _floatundidf \
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_truncdfsf2 _extendsfdf2 \
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_sqrt _recipdf2 _rsqrtdf2
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LIB2ADD = $(srcdir)/config/xtensa/lib2funcs.S
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