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re PR fortran/31011 ([4.2 and 4.1 only] Incorrect error: parameter array sections)

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2007-03-08 Paul Thomas <pault@gcc.gnu.org>

	PR fortran/31011
	* expr.c (find_array_section): Correct arithmetic for section
	size.

2007-03-08 Paul Thomas <pault@gcc.gnu.org>

	PR fortran/31011
	* gfortran.dg/parameter_array_section_2.f90: New test.

From-SVN: r122689
This commit is contained in:
Paul Thomas 2007-03-08 09:09:38 +00:00
parent 1916c916ca
commit e1e24dc19f
4 changed files with 26 additions and 2 deletions

6
gcc/fortran/ChangeLog

@ -1,3 +1,9 @@
2007-03-08 Paul Thomas <pault@gcc.gnu.org>
PR fortran/31011
* expr.c (find_array_section): Correct arithmetic for section
size.
2007-03-07 Brooks Moses <brooks.moses@codesourcery.com>
* iresolve.c (gfc_resolve_ishftc): Correct s_kind value.

3
gcc/fortran/expr.c

@ -1137,8 +1137,7 @@ find_array_section (gfc_expr *expr, gfc_ref *ref)
}
/* Calculate the number of elements and the shape. */
mpz_abs (tmp_mpz, stride[d]);
mpz_div (tmp_mpz, stride[d], tmp_mpz);
mpz_set (tmp_mpz, stride[d]);
mpz_add (tmp_mpz, end[d], tmp_mpz);
mpz_sub (tmp_mpz, tmp_mpz, ctr[d]);
mpz_div (tmp_mpz, tmp_mpz, stride[d]);

5
gcc/testsuite/ChangeLog

@ -1,3 +1,8 @@
2007-03-08 Paul Thomas <pault@gcc.gnu.org>
PR fortran/31011
* gfortran.dg/parameter_array_section_2.f90: New test.
2007-03-08 Volker Reichelt <reichelt@netcologne.de>
PR c++/30852

14
gcc/testsuite/gfortran.dg/parameter_array_section_2.f90 Normal file

@ -0,0 +1,14 @@
! { dg-do run }
! { dg-options "-O" }
! Test the fix for PR31011 in which the length of the array sections
! with stride other than unity were incorrectly calculated.
!
! Contributed by <terry@chem.gu.se>
!
program PotentialMatrix
implicit none
real(kind=8),dimension(2),parameter::v2=(/1,2/)
real(kind=8),dimension(4),parameter::v4=(/1,2,3,4/)
if (any (v2*v4(1:3:2) .ne. (/1,6/))) call abort ()
if (any (v2*v4(3:1:-2) .ne. (/3,2/))) call abort ()
end