https://gcc.gnu.org/g:855f89f9e3bc9e09fbd6926807ca39eabedc16ed
commit 855f89f9e3bc9e09fbd6926807ca39eabedc16ed Author: Mikael Morin <mik...@gcc.gnu.org> Date: Wed Jul 16 21:39:51 2025 +0200 Extraction gfc_conv_shift_descriptor Suppression variable inutilisée Diff: --- gcc/fortran/trans-descriptor.cc | 40 ++++++++++++++++++++++++++++++++++++++++ gcc/fortran/trans-descriptor.h | 1 + gcc/fortran/trans-expr.cc | 36 +----------------------------------- 3 files changed, 42 insertions(+), 35 deletions(-) diff --git a/gcc/fortran/trans-descriptor.cc b/gcc/fortran/trans-descriptor.cc index 047846c97ada..607e95ccfd29 100644 --- a/gcc/fortran/trans-descriptor.cc +++ b/gcc/fortran/trans-descriptor.cc @@ -1126,3 +1126,43 @@ gfc_conv_remap_descriptor (stmtblock_t *block, tree dest, int dest_rank, gfc_array_index_type, stride, tmp); } } + + +void +gfc_conv_shift_descriptor (stmtblock_t *block, tree dest, tree src, + int rank, tree zero_cond) +{ + tree tmp = gfc_conv_descriptor_data_get (src); + gfc_conv_descriptor_data_set (block, dest, tmp); + + tree offset = gfc_index_zero_node; + for (int n = 0 ; n < rank; n++) + { + tree lbound = gfc_conv_descriptor_lbound_get (dest, gfc_rank_cst[n]); + lbound = fold_build3_loc (input_location, COND_EXPR, + gfc_array_index_type, zero_cond, + gfc_index_one_node, lbound); + lbound = gfc_evaluate_now (lbound, block); + + tmp = gfc_conv_descriptor_ubound_get (src, gfc_rank_cst[n]); + tmp = fold_build2_loc (input_location, PLUS_EXPR, + gfc_array_index_type, tmp, lbound); + gfc_conv_descriptor_lbound_set (block, dest, + gfc_rank_cst[n], lbound); + gfc_conv_descriptor_ubound_set (block, dest, + gfc_rank_cst[n], tmp); + + /* Set stride and accumulate the offset. */ + tmp = gfc_conv_descriptor_stride_get (src, gfc_rank_cst[n]); + gfc_conv_descriptor_stride_set (block, dest, + gfc_rank_cst[n], tmp); + tmp = fold_build2_loc (input_location, MULT_EXPR, + gfc_array_index_type, lbound, tmp); + offset = fold_build2_loc (input_location, MINUS_EXPR, + gfc_array_index_type, offset, tmp); + offset = gfc_evaluate_now (offset, block); + } + + gfc_conv_descriptor_offset_set (block, dest, offset); +} + diff --git a/gcc/fortran/trans-descriptor.h b/gcc/fortran/trans-descriptor.h index 71012a6320fe..2ee7fdbf4ebd 100644 --- a/gcc/fortran/trans-descriptor.h +++ b/gcc/fortran/trans-descriptor.h @@ -104,6 +104,7 @@ void gfc_init_descriptor_variable (stmtblock_t *block, gfc_symbol *sym, tree des void gfc_conv_shift_descriptor_lbound (stmtblock_t *, tree, int, tree); void gfc_conv_shift_descriptor (stmtblock_t *, tree, int); void gfc_conv_shift_descriptor (stmtblock_t *, tree, const gfc_array_ref &); +void gfc_conv_shift_descriptor (stmtblock_t *, tree, tree, int, tree); void gfc_conv_remap_descriptor (stmtblock_t *, tree, int, tree, int, gfc_array_ref *); diff --git a/gcc/fortran/trans-expr.cc b/gcc/fortran/trans-expr.cc index f3b58e7fc33a..52d3ac1bff48 100644 --- a/gcc/fortran/trans-expr.cc +++ b/gcc/fortran/trans-expr.cc @@ -11550,7 +11550,6 @@ fcncall_realloc_result (gfc_se *se, int rank, tree dtype) tree desc; tree res_desc; tree tmp; - tree offset; tree zero_cond; tree not_same_shape; stmtblock_t shape_block; @@ -11583,9 +11582,6 @@ fcncall_realloc_result (gfc_se *se, int rank, tree dtype) tmp = gfc_call_free (tmp); gfc_add_expr_to_block (&se->post, tmp); - tmp = gfc_conv_descriptor_data_get (res_desc); - gfc_conv_descriptor_data_set (&se->post, desc, tmp); - /* Check that the shapes are the same between lhs and expression. The evaluation of the shape is done in 'shape_block' to avoid unitialized warnings from the lhs bounds. */ @@ -11629,37 +11625,7 @@ fcncall_realloc_result (gfc_se *se, int rank, tree dtype) /* Now reset the bounds returned from the function call to bounds based on the lhs lbounds, except where the lhs is not allocated or the shapes of 'variable and 'expr' are different. Set the offset accordingly. */ - offset = gfc_index_zero_node; - for (n = 0 ; n < rank; n++) - { - tree lbound; - - lbound = gfc_conv_descriptor_lbound_get (desc, gfc_rank_cst[n]); - lbound = fold_build3_loc (input_location, COND_EXPR, - gfc_array_index_type, zero_cond, - gfc_index_one_node, lbound); - lbound = gfc_evaluate_now (lbound, &se->post); - - tmp = gfc_conv_descriptor_ubound_get (res_desc, gfc_rank_cst[n]); - tmp = fold_build2_loc (input_location, PLUS_EXPR, - gfc_array_index_type, tmp, lbound); - gfc_conv_descriptor_lbound_set (&se->post, desc, - gfc_rank_cst[n], lbound); - gfc_conv_descriptor_ubound_set (&se->post, desc, - gfc_rank_cst[n], tmp); - - /* Set stride and accumulate the offset. */ - tmp = gfc_conv_descriptor_stride_get (res_desc, gfc_rank_cst[n]); - gfc_conv_descriptor_stride_set (&se->post, desc, - gfc_rank_cst[n], tmp); - tmp = fold_build2_loc (input_location, MULT_EXPR, - gfc_array_index_type, lbound, tmp); - offset = fold_build2_loc (input_location, MINUS_EXPR, - gfc_array_index_type, offset, tmp); - offset = gfc_evaluate_now (offset, &se->post); - } - - gfc_conv_descriptor_offset_set (&se->post, desc, offset); + gfc_conv_shift_descriptor (&se->post, desc, res_desc, rank, zero_cond); }