re PR fortran/66111 (ICE with matmul and vector subscripts)
2015-05-12 Thomas Koenig <tkoenig@gcc.gnu.org> PR fortran/66111 * frontend-passes.c (has_dimen_vector_ref): New function. (inline_matmul_assign): Use it to return early in case of unhandled vector subscripts. 2015-05-12 Thomas Koenig <tkoenig@gcc.gnu.org> PR fortran/66111 * gfortran.dg/inline_matmul_10.f90: New test. From-SVN: r223099
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2015-05-12 Thomas Koenig <tkoenig@gcc.gnu.org>
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PR fortran/66111
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* frontend-passes.c (has_dimen_vector_ref): New function.
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(inline_matmul_assign): Use it to return early in case
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of unhandled vector subscripts.
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2015-05-12 Thomas Koenig <tkoenig@gcc.gnu.org>
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PR fortran/66041
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@ -2680,6 +2680,25 @@ scalarized_expr (gfc_expr *e_in, gfc_expr **index, int count_index)
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return e;
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}
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/* Helper function to check for a dimen vector as subscript. */
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static bool
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has_dimen_vector_ref (gfc_expr *e)
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{
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gfc_array_ref *ar;
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int i;
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ar = gfc_find_array_ref (e);
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gcc_assert (ar);
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if (ar->type == AR_FULL)
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return false;
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for (i=0; i<ar->dimen; i++)
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if (ar->dimen_type[i] == DIMEN_VECTOR)
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return true;
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return false;
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}
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/* Inline assignments of the form c = matmul(a,b).
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Handle only the cases currently where b and c are rank-two arrays.
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@ -2752,6 +2771,10 @@ inline_matmul_assign (gfc_code **c, int *walk_subtrees,
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|| matrix_b->expr_type != EXPR_VARIABLE)
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return 0;
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if (has_dimen_vector_ref (expr1) || has_dimen_vector_ref (matrix_a)
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|| has_dimen_vector_ref (matrix_b))
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return 0;
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if (matrix_a->rank == 2)
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m_case = matrix_b->rank == 1 ? A2B1 : A2B2;
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else
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@ -1,3 +1,8 @@
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2015-05-12 Thomas Koenig <tkoenig@gcc.gnu.org>
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PR fortran/66111
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* gfortran.dg/inline_matmul_10.f90: New test.
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2015-05-12 David Malcolm <dmalcolm@redhat.com>
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* c-c++-common/Wmisleading-indentation.c: New testcase.
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@ -0,0 +1,35 @@
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! { dg-do run }
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! { dg-options "-ffrontend-optimize" }
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! PR 66111 - this used to ICE with matmul inlining.
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! Original test case by Mikael Morin.
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implicit none
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integer, parameter :: n = 4
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integer, dimension(n, n) :: a, b, c
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integer, dimension(n*n) :: p, res, res2
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integer, dimension(n) :: v
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integer :: i
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p = [ +59, -53, +47, -43, &
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-37, +31, -29, +23, &
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+19, -17, +13, -11, &
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- 7, + 5, - 3, + 2 ]
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a = reshape(p, shape(a))
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b = reshape([(i, i=1, size(a))], shape(b))
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v = [ 3, 1, 2, 4]
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c = matmul(a, b)
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res = [ + 14, - 22, + 16, - 22, &
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+150, -158, +128, -138, &
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+286, -294, +240, -254, &
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+422, -430, +352, -370 ]
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!print *,c
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if (any(c /= reshape(res, shape(c)))) call abort
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c(:,v) = matmul(a, b)
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if (any(c(:,v) /= reshape(res, shape(c)))) call abort
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c(v,:) = matmul(a, b)
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if (any(c(v,:) /= reshape(res, shape(c)))) call abort
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c = matmul(a(:,v),b(v,:))
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if (any(c /= reshape(res, shape(c)))) call abort
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end
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