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authorebotcazou <ebotcazou@138bc75d-0d04-0410-961f-82ee72b054a4>2008-08-16 18:40:57 +0000
committerebotcazou <ebotcazou@138bc75d-0d04-0410-961f-82ee72b054a4>2008-08-16 18:40:57 +0000
commit4852b82934092d13e2b3e1a183a789e5e97f6729 (patch)
tree4ab818c332a67c5a5e24c9d78cedd1099ebc04e2 /gcc/ada/gcc-interface/decl.c
parent5ca16c548b7739e67ec4adc9a5ce233613eeb9d4 (diff)
downloadppe42-gcc-4852b82934092d13e2b3e1a183a789e5e97f6729.tar.gz
ppe42-gcc-4852b82934092d13e2b3e1a183a789e5e97f6729.zip
PR ada/20548
* common.opt (-fstack-check): Do not declare the variable here. (-fstack-check=): New option variant. * doc/invoke.texi (Code Gen Options): Document it. * expr.h (STACK_OLD_CHECK_PROTECT): New macro. (STACK_CHECK_PROTECT): Bump to 3 pages if DWARF-2 EH is used. (STACK_CHECK_STATIC_BUILTIN): New macro. * doc/tm.texi (Stack Checking): Document STACK_CHECK_STATIC_BUILTIN. * opts.c: Include expr.h. (common_handle_option) <OPT_fold_stack_check_>: New case. <OPT_fstack_check>: Likewise. * calls.c (initialize_argument_information): Use TYPE_SIZE_UNIT consistently in the test for variable-sized types. Adjust for new behaviour of flag_stack_check. * explow.c: Include except.h. (allocate_dynamic_stack_space): Do not take into account STACK_CHECK_MAX_FRAME_SIZE for static builtin stack checking. * function.c (gimplify_parameters): Use DECL_SIZE_UNIT in the test for variable-sized parameters. Treat all parameters whose size is greater than STACK_CHECK_MAX_VAR_SIZE as variable-sized if generic stack checking is enabled. * gimplify.c (gimplify_decl_expr): Treat non-static objects whose size is greater than STACK_CHECK_MAX_VAR_SIZE as variable-sized if generic stack checking is enabled. (expand_function_end): Adjust for new behaviour of flag_stack_check. * reload1.c (reload): Likewise. * stmt.c (expand_decl): Assert that all automatic variables have fixed size at this point and remove dead code. * flags.h (stack_check_type): New enumeration type. (flag_stack_check): Declare. * toplev.c (flag_stack_check): New global variable. * Makefile.in (opts.o): Add dependency on EXPR_H. (explow.o): Add dependency on except.h. ada/ * gcc-interface/decl.c (gnat_to_gnu_entity): Use DECL_SIZE_UNIT in the setjmp test consistently. Adjust for new behaviour of flag_stack_check. * gcc-interface/utils2.c (build_call_alloc_dealloc): Remove redundant test of flag_stack_check. Adjust for new behaviour of flag_stack_check. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@139159 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/ada/gcc-interface/decl.c')
-rw-r--r--gcc/ada/gcc-interface/decl.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/gcc/ada/gcc-interface/decl.c b/gcc/ada/gcc-interface/decl.c
index a136f96bcc8..65dd02e7834 100644
--- a/gcc/ada/gcc-interface/decl.c
+++ b/gcc/ada/gcc-interface/decl.c
@@ -1303,12 +1303,12 @@ gnat_to_gnu_entity (Entity_Id gnat_entity, tree gnu_expr, int definition)
}
}
- if (definition && DECL_SIZE (gnu_decl)
+ if (definition && DECL_SIZE_UNIT (gnu_decl)
&& get_block_jmpbuf_decl ()
- && (TREE_CODE (DECL_SIZE (gnu_decl)) != INTEGER_CST
- || (flag_stack_check && !STACK_CHECK_BUILTIN
- && 0 < compare_tree_int (DECL_SIZE_UNIT (gnu_decl),
- STACK_CHECK_MAX_VAR_SIZE))))
+ && (TREE_CODE (DECL_SIZE_UNIT (gnu_decl)) != INTEGER_CST
+ || (flag_stack_check == GENERIC_STACK_CHECK
+ && compare_tree_int (DECL_SIZE_UNIT (gnu_decl),
+ STACK_CHECK_MAX_VAR_SIZE) > 0)))
add_stmt_with_node (build_call_1_expr
(update_setjmp_buf_decl,
build_unary_op (ADDR_EXPR, NULL_TREE,
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