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expr.c (expand_assignment, [...]): Set in_check_memory_usage while emitting chkr_check_addr libcall.

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* expr.c (expand_assignment, store_expr, expand_expr,
expand_expr_unaligned): Set in_check_memory_usage while emitting
chkr_check_addr libcall.

From-SVN: r34140
This commit is contained in:
Alexandre Oliva 2000-05-24 19:49:28 +00:00 • committed by Alexandre Oliva
parent 55760a0c83
commit ea4da9dbcc
2 changed files with 18 additions and 0 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2000-05-24 Alexandre Oliva <aoliva@cygnus.com>
* expr.c (expand_assignment, store_expr, expand_expr,
expand_expr_unaligned): Set in_check_memory_usage while emitting
chkr_check_addr libcall.
2000-05-24 Nick Clifton <nickc@cygnus.com>
* fold-const.c (extract_muldiv): When constructing a

12
gcc/expr.c
View file

@ -3495,12 +3495,14 @@ expand_assignment (to, from, want_value, suggest_reg)
size *= GET_MODE_SIZE (best_mode);
/* Check the access right of the pointer. */
in_check_memory_usage = 1;
if (size)
emit_library_call (chkr_check_addr_libfunc, 1, VOIDmode, 3,
to_addr, Pmode,
GEN_INT (size), TYPE_MODE (sizetype),
GEN_INT (MEMORY_USE_WO),
TYPE_MODE (integer_type_node));
in_check_memory_usage = 0;
}
/* If this is a varying-length object, we must get the address of
@ -3877,6 +3879,7 @@ store_expr (exp, target, want_value)
&& GET_CODE (target) == MEM
&& AGGREGATE_TYPE_P (TREE_TYPE (exp)))
{
in_check_memory_usage = 1;
if (GET_CODE (temp) == MEM)
emit_library_call (chkr_copy_bitmap_libfunc, 1, VOIDmode, 3,
XEXP (target, 0), Pmode,
@ -3888,6 +3891,7 @@ store_expr (exp, target, want_value)
expr_size (exp), TYPE_MODE (sizetype),
GEN_INT (MEMORY_USE_WO),
TYPE_MODE (integer_type_node));
in_check_memory_usage = 0;
}
/* If value was not generated in the target, store it there.
@ -3991,12 +3995,14 @@ store_expr (exp, target, want_value)
if (size != const0_rtx)
{
/* Be sure we can write on ADDR. */
in_check_memory_usage = 1;
if (current_function_check_memory_usage)
emit_library_call (chkr_check_addr_libfunc, 1, VOIDmode, 3,
addr, Pmode,
size, TYPE_MODE (sizetype),
GEN_INT (MEMORY_USE_WO),
TYPE_MODE (integer_type_node));
in_check_memory_usage = 0;
clear_storage (gen_rtx_MEM (BLKmode, addr), size, align);
}
@ -5919,6 +5925,7 @@ expand_expr (exp, target, tmode, modifier)
enum memory_use_mode memory_usage;
memory_usage = get_memory_usage_from_modifier (modifier);
in_check_memory_usage = 1;
if (memory_usage != MEMORY_USE_DONT)
emit_library_call (chkr_check_addr_libfunc, 1, VOIDmode, 3,
XEXP (DECL_RTL (exp), 0), Pmode,
@ -5926,6 +5933,7 @@ expand_expr (exp, target, tmode, modifier)
TYPE_MODE (sizetype),
GEN_INT (memory_usage),
TYPE_MODE (integer_type_node));
in_check_memory_usage = 0;
}
/* ... fall through ... */
@ -6755,6 +6763,7 @@ expand_expr (exp, target, tmode, modifier)
size = (bitpos % BITS_PER_UNIT) + bitsize + BITS_PER_UNIT - 1;
/* Check the access right of the pointer. */
in_check_memory_usage = 1;
if (size > BITS_PER_UNIT)
emit_library_call (chkr_check_addr_libfunc, 1, VOIDmode, 3,
to, Pmode,
@ -6762,6 +6771,7 @@ expand_expr (exp, target, tmode, modifier)
TYPE_MODE (sizetype),
GEN_INT (memory_usage),
TYPE_MODE (integer_type_node));
in_check_memory_usage = 0;
}
}
@ -8717,12 +8727,14 @@ expand_expr_unaligned (exp, palign)
size = (bitpos % BITS_PER_UNIT) + bitsize + BITS_PER_UNIT - 1;
/* Check the access right of the pointer. */
in_check_memory_usage = 1;
if (size > BITS_PER_UNIT)
emit_library_call (chkr_check_addr_libfunc, 1, VOIDmode, 3,
to, ptr_mode, GEN_INT (size / BITS_PER_UNIT),
TYPE_MODE (sizetype),
GEN_INT (MEMORY_USE_RO),
TYPE_MODE (integer_type_node));
in_check_memory_usage = 0;
}
/* In cases where an aligned union has an unaligned object