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(put_var_into_stack, assign_parms): If -fcheck-memory-usage, set the

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rights of pushed variable.

From-SVN: r14614
This commit is contained in:
Richard Kenner 1997-08-02 13:18:18 -04:00
parent 151b783bca
commit 86fa911a16
1 changed files with 42 additions and 2 deletions
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44
gcc/function.c
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@ -1381,6 +1381,15 @@ put_var_into_stack (decl)
if (GET_CODE (XEXP (reg, 0)) == PLUS)
XEXP (reg, 0) = copy_rtx (XEXP (reg, 0));
}
else
return;
if (flag_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))),
TYPE_MODE (sizetype),
GEN_INT (MEMORY_USE_RW), QImode);
}
/* Subroutine of put_var_into_stack. This puts a single pseudo reg REG
@ -3686,6 +3695,18 @@ assign_parms (fndecl, second_time)
else
stack_parm = gen_rtx (MEM, nominal_mode,
gen_rtx (PLUS, Pmode,
if (flag_check_memory_usage)
{
push_to_sequence (conversion_insns);
emit_library_call (chkr_set_right_libfunc, 1, VOIDmode, 3,
XEXP (stack_parm, 0), ptr_mode,
GEN_INT (int_size_in_bytes
(TREE_TYPE (parm))),
TYPE_MODE (sizetype),
GEN_INT (MEMORY_USE_RW), QImode);
conversion_insns = get_insns ();
end_sequence ();
}
internal_arg_pointer, offset_rtx));
/* If this is a memory ref that contains aggregate components,
@ -3906,6 +3927,12 @@ assign_parms (fndecl, second_time)
store_expr (parm, copy, 0);
emit_move_insn (parmreg, XEXP (copy, 0));
if (flag_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)),
TYPE_MODE (sizetype),
GEN_INT (MEMORY_USE_RW), QImode);
conversion_insns = get_insns ();
did_conversion = 1;
end_sequence ();
@ -4055,7 +4082,19 @@ assign_parms (fndecl, second_time)
emit_move_insn (validize_mem (stack_parm),
validize_mem (entry_parm));
}
if (flag_check_memory_usage)
{
push_to_sequence (conversion_insns);
emit_library_call (chkr_set_right_libfunc, 1, VOIDmode, 3,
XEXP (stack_parm, 0), ptr_mode,
GEN_INT (GET_MODE_SIZE (GET_MODE
(entry_parm))),
TYPE_MODE (sizetype),
GEN_INT (MEMORY_USE_RW), QImode);
conversion_insns = get_insns ();
end_sequence ();
}
DECL_RTL (parm) = stack_parm;
}
@ -4110,7 +4149,7 @@ assign_parms (fndecl, second_time)
= (stack_args_size.var == 0 ? GEN_INT (-stack_args_size.constant)
: expand_expr (size_binop (MINUS_EXPR, stack_args_size.var,
size_int (-stack_args_size.constant)),
NULL_RTX, VOIDmode, 0));
NULL_RTX, VOIDmode, EXPAND_MEMORY_USE_BAD));
#else
current_function_arg_offset_rtx = ARGS_SIZE_RTX (stack_args_size);
#endif
@ -5403,7 +5442,8 @@ expand_function_start (subr, parms_have_cleanups)
/* Evaluate now the sizes of any types declared among the arguments. */
for (tem = nreverse (get_pending_sizes ()); tem; tem = TREE_CHAIN (tem))
{
expand_expr (TREE_VALUE (tem), const0_rtx, VOIDmode, 0);
expand_expr (TREE_VALUE (tem), const0_rtx, VOIDmode,
EXPAND_MEMORY_USE_BAD);
/* Flush the queue in case this parameter declaration has
side-effects. */
emit_queue ();