diff options
Diffstat (limited to 'gcc/fortran/trans-decl.c')
| -rw-r--r-- | gcc/fortran/trans-decl.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/gcc/fortran/trans-decl.c b/gcc/fortran/trans-decl.c index b81b9862207..08dd72af697 100644 --- a/gcc/fortran/trans-decl.c +++ b/gcc/fortran/trans-decl.c @@ -317,6 +317,32 @@ gfc_sym_mangled_function_id (gfc_symbol * sym) } +/* Returns true if a variable of specified size should go on the stack. */ + +int +gfc_can_put_var_on_stack (tree size) +{ + unsigned HOST_WIDE_INT low; + + if (!INTEGER_CST_P (size)) + return 0; + + if (gfc_option.flag_max_stack_var_size < 0) + return 1; + + if (TREE_INT_CST_HIGH (size) != 0) + return 0; + + low = TREE_INT_CST_LOW (size); + if (low > (unsigned HOST_WIDE_INT) gfc_option.flag_max_stack_var_size) + return 0; + +/* TODO: Set a per-function stack size limit. */ + + return 1; +} + + /* Finish processing of a declaration and install its initial value. */ static void @@ -533,7 +559,7 @@ gfc_build_qualified_array (tree decl, gfc_symbol * sym) /* For some dummy arguments we don't use the actual argument directly. - Instead we create a local decl and use that. This allows us to preform + Instead we create a local decl and use that. This allows us to perform initialization, and construct full type information. */ static tree |