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| author | Eric Botcazou <ebotcazou@adacore.com> | 2008-08-16 18:40:57 +0000 |
|---|---|---|
| committer | Eric Botcazou <ebotcazou@gcc.gnu.org> | 2008-08-16 18:40:57 +0000 |
| commit | b38f3813f7ba380b33607e114a7efa9901191924 (patch) | |
| tree | 4ab818c332a67c5a5e24c9d78cedd1099ebc04e2 /gcc/ada/gcc-interface/utils2.c | |
| parent | 6c397102b275823c0d8ffb02ab7d74bb38ede5a9 (diff) | |
| download | gcc-b38f3813f7ba380b33607e114a7efa9901191924.zip gcc-b38f3813f7ba380b33607e114a7efa9901191924.tar.gz gcc-b38f3813f7ba380b33607e114a7efa9901191924.tar.bz2 | |
re PR middle-end/20548 (ACATS c52103x c52104x c52104y segfault)
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.
From-SVN: r139159
Diffstat (limited to 'gcc/ada/gcc-interface/utils2.c')
| -rw-r--r-- | gcc/ada/gcc-interface/utils2.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/gcc/ada/gcc-interface/utils2.c b/gcc/ada/gcc-interface/utils2.c index 0462426..5077e64 100644 --- a/gcc/ada/gcc-interface/utils2.c +++ b/gcc/ada/gcc-interface/utils2.c @@ -1920,11 +1920,11 @@ build_call_alloc_dealloc (tree gnu_obj, tree gnu_size, unsigned align, /* ??? For now, disable variable-sized allocators in the stack since we can't yet gimplify an ALLOCATE_EXPR. */ else if (gnat_pool == -1 - && TREE_CODE (gnu_size) == INTEGER_CST && !flag_stack_check) + && TREE_CODE (gnu_size) == INTEGER_CST + && flag_stack_check != GENERIC_STACK_CHECK) { /* If the size is a constant, we can put it in the fixed portion of the stack frame to avoid the need to adjust the stack pointer. */ - if (TREE_CODE (gnu_size) == INTEGER_CST && !flag_stack_check) { tree gnu_range = build_range_type (NULL_TREE, size_one_node, gnu_size); @@ -1937,9 +1937,8 @@ build_call_alloc_dealloc (tree gnu_obj, tree gnu_size, unsigned align, return convert (ptr_void_type_node, build_unary_op (ADDR_EXPR, NULL_TREE, gnu_decl)); } - else - gcc_unreachable (); #if 0 + else return build2 (ALLOCATE_EXPR, ptr_void_type_node, gnu_size, gnu_align); #endif } |