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[/] [openrisc/] [tags/] [gnu-src/] [gcc-4.5.1/] [gcc-4.5.1-or32-1.0rc3/] [gcc/] [testsuite/] [gcc.target/] [alpha/] [pr39740.c] - Rev 839
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/* { dg-do compile } */ /* { dg-options "-O3 -std=c99 -mexplicit-relocs" } */ typedef int R_len_t; typedef unsigned int SEXPTYPE; struct sxpinfo_struct { SEXPTYPE type:5; }; struct vecsxp_struct { R_len_t length; R_len_t truelength; }; struct listsxp_struct { struct SEXPREC *carval; struct SEXPREC *cdrval; struct SEXPREC *tagval; }; typedef struct SEXPREC { struct sxpinfo_struct sxpinfo; union { struct listsxp_struct listsxp; } u; } SEXPREC, *SEXP; typedef struct VECTOR_SEXPREC { struct vecsxp_struct vecsxp; } VECTOR_SEXPREC, *VECSEXP; typedef union { VECTOR_SEXPREC s; double align; } SEXPREC_ALIGN; extern SEXP R_NilValue; extern SEXP R_MissingArg; int Rf_envlength (SEXP rho); SEXP Rf_protect (SEXP); const char *Rf_translateChar (SEXP); inline R_len_t Rf_length (SEXP s) { int i; switch (((s)->sxpinfo.type)) { case 0: return 0; case 24: return (((VECSEXP) (s))->vecsxp.length); case 6: case 17: i = 0; while (s != ((void *) 0) && s != R_NilValue) { i++; s = ((s)->u.listsxp.cdrval); } return i; case 4: return Rf_envlength (s); default: return 1; } } inline SEXP Rf_lang3 (SEXP s, SEXP t, SEXP u) { return s; } typedef SEXP (*CCODE) (SEXP, SEXP, SEXP, SEXP); static SEXP PlusSymbol; static SEXP MinusSymbol; static SEXP DivideSymbol; int isZero (SEXP s); SEXP PP (SEXP s); SEXP AddParens (SEXP expr); SEXP Rf_install (); static int isUminus (SEXP s) { if (((s)->sxpinfo.type) == 6 && ((s)->u.listsxp.carval) == MinusSymbol) { switch (Rf_length (s)) { case 2: return 1; case 3: if (((((((s)->u.listsxp.cdrval))->u.listsxp.cdrval))->u.listsxp. carval) == R_MissingArg) return 1; else return 0; } } else return 0; } static SEXP simplify (SEXP fun, SEXP arg1, SEXP arg2) { SEXP ans; if (fun == PlusSymbol) { if (isZero (arg1)) ans = arg2; else if (isUminus (arg1)) ans = simplify (MinusSymbol, arg2, ((((arg1)->u.listsxp.cdrval))->u.listsxp.carval)); else if (isUminus (arg2)) ans = simplify (MinusSymbol, arg1, ((((arg2)->u.listsxp.cdrval))->u.listsxp.carval)); } else if (fun == DivideSymbol) { ans = Rf_lang3 (DivideSymbol, arg1, arg2); } return ans; } static SEXP D (SEXP expr, SEXP var) { return simplify (PlusSymbol, PP (D (((((expr)->u.listsxp.cdrval))->u.listsxp.carval), var)), PP (D (((((((expr)->u.listsxp.cdrval))->u.listsxp.cdrval))-> u.listsxp.carval), var))); } SEXP do_D (SEXP call, SEXP op, SEXP args, SEXP env) { SEXP expr, var; var = Rf_install (); expr = ((args)->u.listsxp.carval); Rf_protect (expr = D (expr, var)); expr = AddParens (expr); return expr; }
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