This is the mail archive of the fortran@gcc.gnu.org mailing list for the GNU Fortran project.
Index Nav: | [Date Index] [Subject Index] [Author Index] [Thread Index] | |
---|---|---|
Message Nav: | [Date Prev] [Date Next] | [Thread Prev] [Thread Next] |
Other format: | [Raw text] |
Hello world, this fixes PR 30981, where we used to hang at runtime on 2.**(-huge(i)-1). Regression-tested on i686-pc-linux-gnu. OK for trunk and 4.2? Thomas 2007-03-01 Thomas Koenig <Thomas.Koenig@online.de> PR libfortran/30981 * m4/pow_m4: Use appropriate unsigned int type for u. * generated/pow_c10_i16.c: Regenerated. * generated/pow_c10_i4.c: Regenerated. * generated/pow_c10_i8.c: Regenerated. * generated/pow_c16_i16.c: Regenerated. * generated/pow_c16_i4.c: Regenerated. * generated/pow_c16_i8.c: Regenerated. * generated/pow_c4_i16.c: Regenerated. * generated/pow_c4_i4.c: Regenerated. * generated/pow_c4_i8.c: Regenerated. * generated/pow_c8_i16.c: Regenerated. * generated/pow_c8_i4.c: Regenerated. * generated/pow_c8_i8.c: Regenerated. * generated/pow_i16_i16.c: Regenerated. * generated/pow_i16_i4.c: Regenerated. * generated/pow_i16_i8.c: Regenerated. * generated/pow_i4_i16.c: Regenerated. * generated/pow_i4_i4.c: Regenerated. * generated/pow_i4_i8.c: Regenerated. * generated/pow_i8_i16.c: Regenerated. * generated/pow_i8_i4.c: Regenerated. * generated/pow_i8_i8.c: Regenerated. * generated/pow_r10_i16.c: Regenerated. * generated/pow_r10_i4.c: Regenerated. * generated/pow_r10_i8.c: Regenerated. * generated/pow_r16_i16.c: Regenerated. * generated/pow_r16_i4.c: Regenerated. * generated/pow_r16_i8.c: Regenerated. * generated/pow_r4_i16.c: Regenerated. * generated/pow_r4_i4.c: Regenerated. * generated/pow_r4_i8.c: Regenerated. * generated/pow_r8_i16.c: Regenerated. * generated/pow_r8_i4.c: Regenerated. * generated/pow_r8_i8.c: Regenerated.
Index: pow.m4 =================================================================== --- pow.m4 (revision 122410) +++ pow.m4 (working copy) @@ -46,7 +46,8 @@ rtype_name `pow_'rtype_code`_'atype_code (rtype_name a, atype_name b) { rtype_name pow, x; - atype_name n, u; + atype_name n; + `GFC_UINTEGER_'atype_kind` u;' n = b; x = a; @@ -62,11 +63,14 @@ ifelse(rtype_letter,i,`dnl return (n & 1) ? -1 : 1; return (x == 0) ? 1 / x : 0; ',` - n = -n; + u = -n; x = pow / x; ')dnl } - u = n; + else + { + u = n; + } for (;;) { if (u & 1)
Attachment:
integer_exponentiation_1.f90
Description: Text document
Index Nav: | [Date Index] [Subject Index] [Author Index] [Thread Index] | |
---|---|---|
Message Nav: | [Date Prev] [Date Next] | [Thread Prev] [Thread Next] |