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author | mikael <mikael@138bc75d-0d04-0410-961f-82ee72b054a4> | 2011-11-03 23:53:42 +0000 |
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committer | mikael <mikael@138bc75d-0d04-0410-961f-82ee72b054a4> | 2011-11-03 23:53:42 +0000 |
commit | 7e10f24355cf3115066a3825f8ca44ebc271bdbe (patch) | |
tree | c757bf8b501e4683a2896011ce3bf95d93a12999 /gcc/fortran | |
parent | 2a0320a7dedb6f5c9b47813321836d826aec60f5 (diff) | |
download | ppe42-gcc-7e10f24355cf3115066a3825f8ca44ebc271bdbe.tar.gz ppe42-gcc-7e10f24355cf3115066a3825f8ca44ebc271bdbe.zip |
* trans-array.c (outermost_loop): New function.
(gfc_trans_array_constructor, gfc_set_vector_loop_bounds,
gfc_add_loop_ss_code): Put generated code out of the outermost loop.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@180902 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/fortran')
-rw-r--r-- | gcc/fortran/ChangeLog | 6 | ||||
-rw-r--r-- | gcc/fortran/trans-array.c | 66 |
2 files changed, 47 insertions, 25 deletions
diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog index e359eca5f07..e073ddf916a 100644 --- a/gcc/fortran/ChangeLog +++ b/gcc/fortran/ChangeLog @@ -1,5 +1,11 @@ 2011-11-03 Mikael Morin <mikael@gcc.gnu.org> + * trans-array.c (outermost_loop): New function. + (gfc_trans_array_constructor, gfc_set_vector_loop_bounds, + gfc_add_loop_ss_code): Put generated code out of the outermost loop. + +2011-11-03 Mikael Morin <mikael@gcc.gnu.org> + * trans-array.c (constant_array_constructor_loop_size): Handle multiple loops. diff --git a/gcc/fortran/trans-array.c b/gcc/fortran/trans-array.c index 299bd807564..0f3d1718521 100644 --- a/gcc/fortran/trans-array.c +++ b/gcc/fortran/trans-array.c @@ -2108,6 +2108,16 @@ get_loop_upper_bound_for_array (gfc_ss *array, int array_dim) } +static gfc_loopinfo * +outermost_loop (gfc_loopinfo * loop) +{ + while (loop->parent != NULL) + loop = loop->parent; + + return loop; +} + + /* Array constructors are handled by constructing a temporary, then using that within the scalarization loop. This is not optimal, but seems by far the simplest method. */ @@ -2125,7 +2135,7 @@ trans_array_constructor (gfc_ss * ss, locus * where) bool dynamic; bool old_first_len, old_typespec_chararray_ctor; tree old_first_len_val; - gfc_loopinfo *loop; + gfc_loopinfo *loop, *outer_loop; gfc_ss_info *ss_info; gfc_expr *expr; gfc_ss *s; @@ -2136,6 +2146,7 @@ trans_array_constructor (gfc_ss * ss, locus * where) old_typespec_chararray_ctor = typespec_chararray_ctor; loop = ss->loop; + outer_loop = outermost_loop (loop); ss_info = ss->info; expr = ss_info->expr; @@ -2171,11 +2182,11 @@ trans_array_constructor (gfc_ss * ss, locus * where) gfc_conv_expr_type (&length_se, expr->ts.u.cl->length, gfc_charlen_type_node); ss_info->string_length = length_se.expr; - gfc_add_block_to_block (&loop->pre, &length_se.pre); - gfc_add_block_to_block (&loop->post, &length_se.post); + gfc_add_block_to_block (&outer_loop->pre, &length_se.pre); + gfc_add_block_to_block (&outer_loop->post, &length_se.post); } else - const_string = get_array_ctor_strlen (&loop->pre, c, + const_string = get_array_ctor_strlen (&outer_loop->pre, c, &ss_info->string_length); /* Complex character array constructors should have been taken care of @@ -2252,15 +2263,15 @@ trans_array_constructor (gfc_ss * ss, locus * where) if (TREE_CODE (*loop_ubound0) == VAR_DECL) dynamic = true; - gfc_trans_create_temp_array (&loop->pre, &loop->post, ss, type, NULL_TREE, - dynamic, true, false, where); + gfc_trans_create_temp_array (&outer_loop->pre, &outer_loop->post, ss, type, + NULL_TREE, dynamic, true, false, where); desc = ss_info->data.array.descriptor; offset = gfc_index_zero_node; offsetvar = gfc_create_var_np (gfc_array_index_type, "offset"); TREE_NO_WARNING (offsetvar) = 1; TREE_USED (offsetvar) = 0; - gfc_trans_array_constructor_value (&loop->pre, type, desc, c, + gfc_trans_array_constructor_value (&outer_loop->pre, type, desc, c, &offset, &offsetvar, dynamic); /* If the array grows dynamically, the upper bound of the loop variable @@ -2270,10 +2281,10 @@ trans_array_constructor (gfc_ss * ss, locus * where) tmp = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type, offsetvar, gfc_index_one_node); - tmp = gfc_evaluate_now (tmp, &loop->pre); + tmp = gfc_evaluate_now (tmp, &outer_loop->pre); gfc_conv_descriptor_ubound_set (&loop->pre, desc, gfc_rank_cst[0], tmp); if (*loop_ubound0 && TREE_CODE (*loop_ubound0) == VAR_DECL) - gfc_add_modify (&loop->pre, *loop_ubound0, tmp); + gfc_add_modify (&outer_loop->pre, *loop_ubound0, tmp); else *loop_ubound0 = tmp; } @@ -2307,7 +2318,7 @@ finish: static void set_vector_loop_bounds (gfc_ss * ss) { - gfc_loopinfo *loop; + gfc_loopinfo *loop, *outer_loop; gfc_array_info *info; gfc_se se; tree tmp; @@ -2316,6 +2327,8 @@ set_vector_loop_bounds (gfc_ss * ss) int n; int dim; + outer_loop = outermost_loop (ss->loop); + info = &ss->info->data.array; for (; ss; ss = ss->parent) @@ -2343,7 +2356,7 @@ set_vector_loop_bounds (gfc_ss * ss) gfc_array_index_type, gfc_conv_descriptor_ubound_get (desc, zero), gfc_conv_descriptor_lbound_get (desc, zero)); - tmp = gfc_evaluate_now (tmp, &loop->pre); + tmp = gfc_evaluate_now (tmp, &outer_loop->pre); loop->to[n] = tmp; } } @@ -2358,7 +2371,7 @@ static void gfc_add_loop_ss_code (gfc_loopinfo * loop, gfc_ss * ss, bool subscript, locus * where) { - gfc_loopinfo *nested_loop; + gfc_loopinfo *nested_loop, *outer_loop; gfc_se se; gfc_ss_info *ss_info; gfc_array_info *info; @@ -2366,6 +2379,8 @@ gfc_add_loop_ss_code (gfc_loopinfo * loop, gfc_ss * ss, bool subscript, bool skip_nested = false; int n; + outer_loop = outermost_loop (loop); + /* TODO: This can generate bad code if there are ordering dependencies, e.g., a callee allocated function and an unknown size constructor. */ gcc_assert (ss != NULL); @@ -2389,7 +2404,7 @@ gfc_add_loop_ss_code (gfc_loopinfo * loop, gfc_ss * ss, bool subscript, dimension indices, but not array section bounds. */ gfc_init_se (&se, NULL); gfc_conv_expr (&se, expr); - gfc_add_block_to_block (&loop->pre, &se.pre); + gfc_add_block_to_block (&outer_loop->pre, &se.pre); if (expr->ts.type != BT_CHARACTER) { @@ -2398,11 +2413,11 @@ gfc_add_loop_ss_code (gfc_loopinfo * loop, gfc_ss * ss, bool subscript, if (subscript) se.expr = convert(gfc_array_index_type, se.expr); if (!ss_info->where) - se.expr = gfc_evaluate_now (se.expr, &loop->pre); - gfc_add_block_to_block (&loop->pre, &se.post); + se.expr = gfc_evaluate_now (se.expr, &outer_loop->pre); + gfc_add_block_to_block (&outer_loop->pre, &se.post); } else - gfc_add_block_to_block (&loop->post, &se.post); + gfc_add_block_to_block (&outer_loop->post, &se.post); ss_info->data.scalar.value = se.expr; ss_info->string_length = se.string_length; @@ -2413,10 +2428,11 @@ gfc_add_loop_ss_code (gfc_loopinfo * loop, gfc_ss * ss, bool subscript, now. */ gfc_init_se (&se, NULL); gfc_conv_expr (&se, expr); - gfc_add_block_to_block (&loop->pre, &se.pre); - gfc_add_block_to_block (&loop->post, &se.post); + gfc_add_block_to_block (&outer_loop->pre, &se.pre); + gfc_add_block_to_block (&outer_loop->post, &se.post); - ss_info->data.scalar.value = gfc_evaluate_now (se.expr, &loop->pre); + ss_info->data.scalar.value = gfc_evaluate_now (se.expr, + &outer_loop->pre); ss_info->string_length = se.string_length; break; @@ -2438,8 +2454,8 @@ gfc_add_loop_ss_code (gfc_loopinfo * loop, gfc_ss * ss, bool subscript, /* Get the vector's descriptor and store it in SS. */ gfc_init_se (&se, NULL); gfc_conv_expr_descriptor (&se, expr, gfc_walk_expr (expr)); - gfc_add_block_to_block (&loop->pre, &se.pre); - gfc_add_block_to_block (&loop->post, &se.post); + gfc_add_block_to_block (&outer_loop->pre, &se.pre); + gfc_add_block_to_block (&outer_loop->post, &se.post); info->descriptor = se.expr; break; @@ -2454,8 +2470,8 @@ gfc_add_loop_ss_code (gfc_loopinfo * loop, gfc_ss * ss, bool subscript, se.loop = loop; se.ss = ss; gfc_conv_expr (&se, expr); - gfc_add_block_to_block (&loop->pre, &se.pre); - gfc_add_block_to_block (&loop->post, &se.post); + gfc_add_block_to_block (&outer_loop->pre, &se.pre); + gfc_add_block_to_block (&outer_loop->post, &se.post); ss_info->string_length = se.string_length; break; @@ -2469,8 +2485,8 @@ gfc_add_loop_ss_code (gfc_loopinfo * loop, gfc_ss * ss, bool subscript, gfc_conv_expr_type (&se, expr->ts.u.cl->length, gfc_charlen_type_node); ss_info->string_length = se.expr; - gfc_add_block_to_block (&loop->pre, &se.pre); - gfc_add_block_to_block (&loop->post, &se.post); + gfc_add_block_to_block (&outer_loop->pre, &se.pre); + gfc_add_block_to_block (&outer_loop->post, &se.post); } trans_array_constructor (ss, where); break; |