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| author | Ken Raeburn <raeburn@cygnus.com> | 1998-10-11 02:21:54 +0000 |
|---|---|---|
| committer | Ken Raeburn <raeburn@gcc.gnu.org> | 1998-10-11 02:21:54 +0000 |
| commit | 7d384cc0b300cace24c008fec600219e4377923c (patch) | |
| tree | 7d04180ff0e97d1e5bb80e16c8389a2a43d9e018 /gcc/function.c | |
| parent | e41887f1fc521f4dde6c0a56ebe3fa1cc1c108aa (diff) | |
| download | gcc-7d384cc0b300cace24c008fec600219e4377923c.zip gcc-7d384cc0b300cace24c008fec600219e4377923c.tar.gz gcc-7d384cc0b300cace24c008fec600219e4377923c.tar.bz2 | |
Fine-grained control of -fcheck-memory-usage with new no_check_memory_usage attribute.
Fine-grained control of -fcheck-memory-usage with new no_check_memory_usage
attribute. Misc minor bugfixes and tests for it too.
From-SVN: r22983
Diffstat (limited to 'gcc/function.c')
| -rw-r--r-- | gcc/function.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/gcc/function.c b/gcc/function.c index 5ad113c..4645f5af 100644 --- a/gcc/function.c +++ b/gcc/function.c @@ -221,6 +221,9 @@ char *current_function_cannot_inline; generated. */ int current_function_instrument_entry_exit; +/* Nonzero if memory access checking be enabled in the current function. */ +int current_function_check_memory_usage; + /* The FUNCTION_DECL for an inline function currently being expanded. */ tree inline_function_decl; @@ -543,6 +546,7 @@ push_function_context_to (context) p->fixup_var_refs_queue = 0; p->epilogue_delay_list = current_function_epilogue_delay_list; p->args_info = current_function_args_info; + p->check_memory_usage = current_function_check_memory_usage; p->instrument_entry_exit = current_function_instrument_entry_exit; save_tree_status (p, context); @@ -626,6 +630,7 @@ pop_function_context_from (context) current_function_epilogue_delay_list = p->epilogue_delay_list; reg_renumber = 0; current_function_args_info = p->args_info; + current_function_check_memory_usage = p->check_memory_usage; current_function_instrument_entry_exit = p->instrument_entry_exit; restore_tree_status (p, context); @@ -1484,7 +1489,7 @@ put_var_into_stack (decl) else return; - if (flag_check_memory_usage) + if (current_function_check_memory_usage) emit_library_call (chkr_set_right_libfunc, 1, VOIDmode, 3, XEXP (reg, 0), ptr_mode, GEN_INT (GET_MODE_SIZE (GET_MODE (reg))), @@ -4364,7 +4369,7 @@ assign_parms (fndecl, second_time) store_expr (parm, copy, 0); emit_move_insn (parmreg, XEXP (copy, 0)); - if (flag_check_memory_usage) + if (current_function_check_memory_usage) emit_library_call (chkr_set_right_libfunc, 1, VOIDmode, 3, XEXP (copy, 0), ptr_mode, GEN_INT (int_size_in_bytes (type)), @@ -4529,7 +4534,7 @@ assign_parms (fndecl, second_time) emit_move_insn (validize_mem (stack_parm), validize_mem (entry_parm)); } - if (flag_check_memory_usage) + if (current_function_check_memory_usage) { push_to_sequence (conversion_insns); emit_library_call (chkr_set_right_libfunc, 1, VOIDmode, 3, @@ -5550,6 +5555,11 @@ expand_function_start (subr, parms_have_cleanups) valid operands of arithmetic insns. */ init_recog_no_volatile (); + /* Set this before generating any memory accesses. */ + current_function_check_memory_usage + = (flag_check_memory_usage + && ! DECL_NO_CHECK_MEMORY_USAGE (current_function_decl)); + current_function_instrument_entry_exit = (flag_instrument_function_entry_exit && ! DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT (subr)); |