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| author | Paul Thomas <pault@gcc.gnu.org> | 2015-03-23 07:53:31 +0000 |
|---|---|---|
| committer | Mikael Morin <mikael@gcc.gnu.org> | 2015-03-23 07:53:31 +0000 |
| commit | 30c931de07f8fcbe4ef3b550633c274fe7828975 (patch) | |
| tree | 59f7139307675a6ddd88e7d11153ba3460ac0019 /gcc/fortran/trans.h | |
| parent | af3eb1106883dffe6b1164070a00ad0c14df1146 (diff) | |
| download | gcc-30c931de07f8fcbe4ef3b550633c274fe7828975.zip gcc-30c931de07f8fcbe4ef3b550633c274fe7828975.tar.gz gcc-30c931de07f8fcbe4ef3b550633c274fe7828975.tar.bz2 | |
re PR fortran/64952 (Missing temporary in assignment from elemental function)
2015-03-23 Paul Thomas <pault@gcc.gnu.org>
Mikael Morin <mikael@gcc.gnu.org>
PR fortran/64952
fortran/
* gfortran.h (struct symbol_attribute) : New field
'array_outer_dependency'.
* trans.h (struct gfc_ss_info): New field 'array_outer_dependency'.
* module.c (enum ab_attribute): New value AB_ARRAY_OUTER_DEPENDENCY.
(attr_bits): Append same value to initializer.
(mio_symbol_attribute): Handle 'array_outer_dependency' attr
in module read and write.
* resolve.c (update_current_proc_outer_array_dependency): New function.
(resolve_function, resolve_call): Add code to update current procedure's
'array_outer_dependency' attribute.
(resolve_variable): Mark current procedure with attribute
array_outer_dependency if the variable is an array coming from outside
the current namespace.
(resolve_fl_procedure): Mark a procedure without body with attribute
'array_outer_dependency'.
* trans-array.c (gfc_conv_resolve_dependencies): If any ss is
marked as 'array_outer_dependency' generate a temporary.
(gfc_walk_function_expr): If the function may reference external arrays,
mark the head gfc_ss with flag 'array_outer_dependency'.
testsuite/
* gfortran.dg/elemental_dependency_4.f90: New.
* gfortran.dg/elemental_dependency_5.f90: New.
Co-Authored-By: Mikael Morin <mikael@gcc.gnu.org>
From-SVN: r221586
Diffstat (limited to 'gcc/fortran/trans.h')
| -rw-r--r-- | gcc/fortran/trans.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/fortran/trans.h b/gcc/fortran/trans.h index 3ba2f88..be11363 100644 --- a/gcc/fortran/trans.h +++ b/gcc/fortran/trans.h @@ -226,6 +226,10 @@ typedef struct gfc_ss_info /* Suppresses precalculation of scalars in WHERE assignments. */ unsigned where:1; + /* This set for an elemental function that contains expressions for + external arrays, thereby triggering creation of a temporary. */ + unsigned array_outer_dependency:1; + /* Tells whether the SS is for an actual argument which can be a NULL reference. In other words, the associated dummy argument is OPTIONAL. Used to handle elemental procedures. */ |