(BUILT_IN_LLFLOOR, BUILT_IN_LLFLOORF, BUILT_IN_LLFLOORL): New.
* optabs.h (enum optab_index): Add new OTI_lfloor.
(lfloor_optab): Define corresponding macro.
* optabs.c (init_optabs): Initialize lfloor_optab.
* genopinit.c (optabs): Implement lfloor_optab using lfloorsi2
and lfloordi2 patterns.
* builtins.c (expand_builtin_int_roundingfn): New prototype.
(expand_builtin_int_roundingfn): New function.
(fold_builtin_int_roundingfn): New prototype.
(fold_builtin_int_roundingfn): New function, renamed from
fold_builtin_lround.
Handle BUILT_IN_LROUND{,F,L}, BUILT_IN_LLROUND{,F,L} and
BUILT_IN_LFLOOR{,F,L}, BUILT_IN_LLFLOOR{,F,L}.
(fold_builtin_1): Fold BUILT_IN_LFLOOR{,F,L} and
BUILT_IN_LLFLOOR{,F,L} using fold_builtin_int_roundingfn.
(mathfn_built_in): Handle BUILT_IN LFLOOR and BUILT_IN_LLFLOOR.
(expand_builtin): Expand BUILT_IN_LFLOOR{,F,L} and
BUILT_IN_LLFLOOR{,F,L} using expand_builtin_int_roundingfn.
* convert.c (convert_to_integer): Convert (long int)floor{,f,l},
into lfloor built-in function and (long long int)floor{,f,l} into
llfloor built-in function.
* fold-const.c (tree_expr_nonnegative_p): Add BUILT_IN_LFLOOR and
BUILT_IN_LLFLOOR.
testsuite:
* gcc.dg/builtins-53.c: New test.
From-SVN: r97886
