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PR fortran/99840 - ICE in gfc_simplify_matmul, at fortran/simplify.c:4777

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The simplification of the transposition of a constant array shall properly
initialize and set the shape of the result.

gcc/fortran/ChangeLog:

	PR fortran/99840
	* simplify.c (gfc_simplify_transpose): Properly initialize
	resulting shape.

gcc/testsuite/ChangeLog:

	PR fortran/99840
	* gfortran.dg/transpose_5.f90: New test.
This commit is contained in:
Harald Anlauf 2021-04-01 07:49:32 +02:00
parent 95d217ab52
commit d7cef070bf
2 changed files with 10 additions and 2 deletions
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4
gcc/fortran/simplify.c
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@ -8123,8 +8123,8 @@ gfc_simplify_transpose (gfc_expr *matrix)
&matrix->where);
result->rank = 2;
result->shape = gfc_get_shape (result->rank);
mpz_set (result->shape[0], matrix->shape[1]);
mpz_set (result->shape[1], matrix->shape[0]);
mpz_init_set (result->shape[0], matrix->shape[1]);
mpz_init_set (result->shape[1], matrix->shape[0]);
if (matrix->ts.type == BT_CHARACTER)
result->ts.u.cl = matrix->ts.u.cl;

8
gcc/testsuite/gfortran.dg/transpose_5.f90 Normal file
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@ -0,0 +1,8 @@
! { dg-do compile }
! { dg-options "-O2" }
! PR fortran/99840 - ICE in gfc_simplify_matmul, at fortran/simplify.c:4777
program p
integer, parameter :: x(0,0) = 0
integer :: y(0,0)
y = matmul (x, transpose(x))
end