This changes how we stream DECL_ARGUMENTS because the way we do it
now (recursing over TREE_CHAIN of the PARM_DECLs) puts quite a burden
on stack use for limits-fndefn.c. The following changes streaming
that chain to how we stream all other chains (apart from TREE_LISTs
which we arguably should change as well).
LTO bootstrapped and tested on x86_64-unknown-linux-gnu, applied.
Richard.
2012-10-17 Richard Biener <rguent...@suse.de>
* tree-streamer-out.c (write_ts_decl_common_tree_pointers):
Do not write TREE_CHAIN of PARM_DECLs.
(write_ts_decl_non_common_tree_pointers): Instead stream
the DECL_ARGUMENTS chain.
* tree-streamer-in.c (lto_input_ts_decl_common_tree_pointers):
Do not read TREE_CHAIN of PARM_DECLs.
(lto_input_ts_decl_non_common_tree_pointes): Instead read
the DECL_ARGUMENTS as chain.
Index: gcc/tree-streamer-out.c
===================================================================
*** gcc/tree-streamer-out.c (revision 192499)
--- gcc/tree-streamer-out.c (working copy)
*************** write_ts_decl_common_tree_pointers (stru
*** 562,570 ****
for early inlining so drop it on the floor instead of ICEing in
dwarf2out.c. */
- if (TREE_CODE (expr) == PARM_DECL)
- streamer_write_chain (ob, TREE_CHAIN (expr), ref_p);
-
if ((TREE_CODE (expr) == VAR_DECL
|| TREE_CODE (expr) == PARM_DECL)
&& DECL_HAS_VALUE_EXPR_P (expr))
--- 562,567 ----
*************** write_ts_decl_non_common_tree_pointers (
*** 585,591 ****
{
if (TREE_CODE (expr) == FUNCTION_DECL)
{
! stream_write_tree (ob, DECL_ARGUMENTS (expr), ref_p);
stream_write_tree (ob, DECL_RESULT (expr), ref_p);
}
else if (TREE_CODE (expr) == TYPE_DECL)
--- 582,588 ----
{
if (TREE_CODE (expr) == FUNCTION_DECL)
{
! streamer_write_chain (ob, DECL_ARGUMENTS (expr), ref_p);
stream_write_tree (ob, DECL_RESULT (expr), ref_p);
}
else if (TREE_CODE (expr) == TYPE_DECL)
Index: gcc/tree-streamer-in.c
===================================================================
*** gcc/tree-streamer-in.c (revision 192499)
--- gcc/tree-streamer-in.c (working copy)
*************** lto_input_ts_decl_common_tree_pointers (
*** 643,651 ****
for early inlining so drop it on the floor instead of ICEing in
dwarf2out.c. */
- if (TREE_CODE (expr) == PARM_DECL)
- TREE_CHAIN (expr) = streamer_read_chain (ib, data_in);
-
if ((TREE_CODE (expr) == VAR_DECL
|| TREE_CODE (expr) == PARM_DECL)
&& DECL_HAS_VALUE_EXPR_P (expr))
--- 643,648 ----
*************** lto_input_ts_decl_non_common_tree_pointe
*** 670,676 ****
{
if (TREE_CODE (expr) == FUNCTION_DECL)
{
! DECL_ARGUMENTS (expr) = stream_read_tree (ib, data_in);
DECL_RESULT (expr) = stream_read_tree (ib, data_in);
}
else if (TREE_CODE (expr) == TYPE_DECL)
--- 667,673 ----
{
if (TREE_CODE (expr) == FUNCTION_DECL)
{
! DECL_ARGUMENTS (expr) = streamer_read_chain (ib, data_in);
DECL_RESULT (expr) = stream_read_tree (ib, data_in);
}
else if (TREE_CODE (expr) == TYPE_DECL)
