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re PR fortran/28923 (Bad triplet interpretation in initialization)

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2006-09-10  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/28923
	expr.c (find_array_section): Only use the array lower and upper
	bounds for the start and end of the sections, where the expr is
	NULL.

2006-09-10  Paul Thomas  <pault@gcc.gnu.org>

	PR libfortran/28923
	gfortran.dg/array_initializer_2.f90: Fill in missing index start value.
	gfortran.dg/array_initializer_3.f90: New test.

From-SVN: r116815
This commit is contained in:
Paul Thomas 2006-09-10 17:13:29 +00:00
parent a7819e426a
commit c71d6a561e
5 changed files with 32 additions and 14 deletions
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9
gcc/fortran/ChangeLog
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@ -1,4 +1,11 @@
2006-09-09 Paul Thomas <pault@gcc.gnu.org>
2006-09-10 Paul Thomas <pault@gcc.gnu.org>
PR fortran/28923
expr.c (find_array_section): Only use the array lower and upper
bounds for the start and end of the sections, where the expr is
NULL.
2006-09-10 Paul Thomas <pault@gcc.gnu.org>
PR fortran/28914
* trans-array.c (gfc_trans_array_constructor_value): Create a temporary

15
gcc/fortran/expr.c
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@ -1090,24 +1090,15 @@ find_array_section (gfc_expr *expr, gfc_ref *ref)
if (begin)
mpz_set (start[d], begin->value.integer);
else
{
if (mpz_cmp_si (stride[d], 0) < 0)
mpz_set (start[d], upper->value.integer);
else
mpz_set (start[d], lower->value.integer);
}
mpz_set (start[d], lower->value.integer);
mpz_set (ctr[d], start[d]);
/* Obtain the end value for the index. */
if (finish)
mpz_set (end[d], finish->value.integer);
else
{
if (mpz_cmp_si (stride[d], 0) < 0)
mpz_set (end[d], lower->value.integer);
else
mpz_set (end[d], upper->value.integer);
}
mpz_set (end[d], upper->value.integer);
/* Separate 'if' because elements sometimes arrive with
non-null end. */

6
gcc/testsuite/ChangeLog
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@ -1,3 +1,9 @@
2006-09-09 Paul Thomas <pault@gcc.gnu.org>
PR libfortran/28923
gfortran.dg/array_initializer_2.f90: Fill in missing index start value.
gfortran.dg/array_initializer_3.f90: New test.
2006-09-09 Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR fortran/28914

2
gcc/testsuite/gfortran.dg/array_initializer_2.f90
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@ -8,7 +8,7 @@
integer, dimension(3), parameter :: a=(/1,2,3/)
integer, dimension(3), parameter :: b=(/a(:)/)
integer, dimension(3,3), parameter :: c=reshape ((/(i, i = 1,9)/),(/3,3/))
integer, dimension(2,3), parameter :: d=reshape ((/c(:2:-1,:)/),(/2,3/))
integer, dimension(2,3), parameter :: d=reshape ((/c(3:2:-1,:)/),(/2,3/))
integer, dimension(3,3), parameter :: e=reshape ((/a(:),a(:)+3,a(:)+6/),(/3,3/))
integer, dimension(2,3), parameter :: f=reshape ((/c(2:1:-1,:)/),(/2,3/))
if (any (b .ne. (/1,2,3/))) call abort ()

14
gcc/testsuite/gfortran.dg/array_initializer_3.f90 Normal file
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@ -0,0 +1,14 @@
! { dg-do compile }
! Tests the fix for PR28923 in which initializer array constructors with
! a missing initial array index and negative stride would be incorrectly
! interpreted.
!
! Contributed by Dominique d'Humieres <dominiq@lps.ens.fr>
!
real, dimension(3,3), parameter :: a=reshape ((/(i, i = 1,9)/),(/3,3/))
real, dimension(2,3) :: b=a(:2:-1,:) ! { dg-error "different shape for Array assignment" }
real, dimension(2,3) :: c=a(3:2:-1,:)
print *, b
print *, c
end