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| author | Geoff Keating <geoffk@cygnus.com> | 1999-12-04 03:00:04 +0000 |
|---|---|---|
| committer | Geoffrey Keating <geoffk@gcc.gnu.org> | 1999-12-04 03:00:04 +0000 |
| commit | a157febd0ca69d5b4570fc714c141fd5da555a7a (patch) | |
| tree | 9c9c8b5fa8e01f95d849e7b0f24402c7081b73d4 /gcc/function.c | |
| parent | 3c12fcc27809a223032e1b0ad2beba1f6844a5c6 (diff) | |
| download | gcc-a157febd0ca69d5b4570fc714c141fd5da555a7a.zip gcc-a157febd0ca69d5b4570fc714c141fd5da555a7a.tar.gz gcc-a157febd0ca69d5b4570fc714c141fd5da555a7a.tar.bz2 | |
c-common.c (enum attrs): Add A_NO_LIMIT_STACK.
* c-common.c (enum attrs): Add A_NO_LIMIT_STACK.
(init_attributes): Add A_NO_LIMIT_STACK.
(decl_attributes): Handle A_NO_LIMIT_STACK.
* c-decl.c (duplicate_decls): Handle DECL_NO_LIMIT_STACK.
* explow.c (allocate_dynamic_stack_space) [!HAVE_allocate_stack]:
Handle stack bounds checking.
* flags.h (flag_stack_check): Use the word 'probe' rather than
'check', because the flag doesn't actually cause any checking to
be done.
* function.c (expand_function_start): Set
current_function_limit_stack.
* function.h (struct function): Add limit_stack.
(current_function_limit_stack): Define.
* invoke.texi (Code Gen Options): Document new options.
* rtl.h: Declare stack_limit_rtx.
* toplev.c (stack_limit_rtx): New variable.
(decode_f_option): Handle new options -fstack-limit-register=REG,
-fstack-limit-symbol=IDENT, -fno-stack-limit.
(main): Add stack_limit_rtx as GC root.
* tree.h (DECL_NO_LIMIT_STACK): New macro.
(struct tree_decl): New member no_limit_stack.
* config/rs6000/rs6000.c (rs6000_allocate_stack_space): Handle
stack_limit_rtx.
* config/rs6000/rs6000.md (allocate_stack): Handle stack_limit_rtx.
(conditional_trap+1): Get new mnemonic correct.
(conditional_trap+2): New pattern for DImode traps.
* config/m68k/m68k.c (output_function_prologue): Handle
stack_limit_rtx.
* config/m68k/m68k.md (trap): New insn.
(conditional_trap): New insn.
* md.texi (Standard Names): Document `trap' and
`conditional_trap'.
* optabs.c (gen_cond_trap): Use start_sequence()/end_sequence()
so a cc0 setter doesn't get emitted at some random place in the
function.
* config/i960/i960.md (trap): New insn.
(conditional_trap): New expander.
(conditional_trap+1, conditional_trap+2): New insns for signed
and unsigned cases.
* config/i960/i960.c (i960_function_prologue): Use
STARTING_FRAME_OFFSET. Handle stack_limit_rtx.
Co-Authored-By: Greg McGary <gkm@gnu.org>
From-SVN: r30771
Diffstat (limited to 'gcc/function.c')
| -rw-r--r-- | gcc/function.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/function.c b/gcc/function.c index 7014a8b..587fdff 100644 --- a/gcc/function.c +++ b/gcc/function.c @@ -5946,6 +5946,9 @@ expand_function_start (subr, parms_have_cleanups) = (flag_instrument_function_entry_exit && ! DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT (subr)); + current_function_limit_stack + = (stack_limit_rtx != NULL_RTX && ! DECL_NO_LIMIT_STACK (subr)); + /* If function gets a static chain arg, store it in the stack frame. Do this first, so it gets the first stack slot offset. */ if (current_function_needs_context) |