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authorTobias Burnus <tobias@codesourcery.com>2021-09-27 14:04:54 +0200
committerTobias Burnus <tobias@codesourcery.com>2021-09-27 14:04:54 +0200
commit00f6de9c69119594f7dad3bd525937c94c8200d0 (patch)
tree5133e52eac80818ae2e4b4180af6e462af8b3571 /libgfortran
parent76773d3fea4daaaf5b0f6d79d9f48ffe6b3c97fd (diff)
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Fortran: Fix assumed-size to assumed-rank passing [PR94070]
This code inlines the size0 and size1 libgfortran calls, the former is still used by libgfortan itself (and by old code). Besides permitting more optimizations, it also permits to handle assumed-rank dummies better: If the dummy argument is a nonpointer/nonallocatable, an assumed-size actual arg is repesented by having ubound == -1 for the last dimension. However, for allocatable/pointers, this value can also exist. Hence, the dummy arg attr has to be honored. For that reason, when calling an assumed-rank procedure with nonpointer, nonallocatable dummy arguments, the bounds have to be updated to avoid the case ubound == -1 for the last dimension. PR fortran/94070 gcc/fortran/ChangeLog: * trans-array.c (gfc_tree_array_size): New function to find size inline (whole array or one dimension). (array_parameter_size): Use it, take stmt_block as arg. (gfc_conv_array_parameter): Update call. * trans-array.h (gfc_tree_array_size): Add prototype. * trans-decl.c (gfor_fndecl_size0, gfor_fndecl_size1): Remove these global vars. (gfc_build_intrinsic_function_decls): Remove their initialization. * trans-expr.c (gfc_conv_procedure_call): Update bounds of pointer/allocatable actual args to nonallocatable/nonpointer dummies to be one based. * trans-intrinsic.c (gfc_conv_intrinsic_shape): Fix case for assumed rank with allocatable/pointer dummy. (gfc_conv_intrinsic_size): Update to use inline function. * trans.h (gfor_fndecl_size0, gfor_fndecl_size1): Remove var decl. libgfortran/ChangeLog: * intrinsics/size.c (size0, size1): Comment that now not used by newer compiler code. libgomp/ChangeLog: * testsuite/libgomp.oacc-fortran/privatized-ref-2.f90: Update expected dg-note output. gcc/testsuite/ChangeLog: * gfortran.dg/c-interop/cf-out-descriptor-6.f90: Remove xfail. * gfortran.dg/c-interop/size.f90: Remove xfail. * gfortran.dg/intrinsic_size_3.f90: Update scan-tree-dump-times. * gfortran.dg/transpose_optimization_2.f90: Likewise. * gfortran.dg/size_optional_dim_1.f90: Add scan-tree-dump-not. * gfortran.dg/assumed_rank_22.f90: New test. * gfortran.dg/assumed_rank_22_aux.c: New test.
Diffstat (limited to 'libgfortran')
-rw-r--r--libgfortran/intrinsics/size.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/libgfortran/intrinsics/size.c b/libgfortran/intrinsics/size.c
index e9d9386..f1a60ba 100644
--- a/libgfortran/intrinsics/size.c
+++ b/libgfortran/intrinsics/size.c
@@ -25,6 +25,8 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
#include "libgfortran.h"
+/* Note: This function is only used internally in libgfortran and old FE code,
+ new code generates the code inline. */
index_type
size0 (const array_t * array)
{
@@ -47,6 +49,8 @@ iexport(size0);
extern index_type size1 (const array_t * array, index_type dim);
export_proto(size1);
+/* Note: This function it is unused in libgfortran itself and the FE no longer
+ call it; however, old code might still call it. */
index_type
size1 (const array_t * array, index_type dim)
{