Hello.
In order to not cause a stack overflow, lets use a vector allocated on heap
instead of
the one created by XALLOCVEC.
Patch can bootstrap on ppc64le-redhat-linux and survives regression tests.
Ready to be installed?
Martin
>From c71fadc2104c729ae5625e06c54239998dd794a5 Mon Sep 17 00:00:00 2001
From: marxin <mli...@suse.cz>
Date: Mon, 13 Feb 2017 09:25:36 +0100
Subject: [PATCH] Replace XALLOCAVEC with XCNEWVEC (PR c/79471).
gcc/ChangeLog:
2017-02-13 Martin Liska <mli...@suse.cz>
PR c/79471
* calls.c (expand_call): Replace XALLOCAVEC with XCNEWVEC.
---
gcc/calls.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/gcc/calls.c b/gcc/calls.c
index 7b45b9a111d..6d5ef4e02a0 100644
--- a/gcc/calls.c
+++ b/gcc/calls.c
@@ -3262,8 +3262,7 @@ expand_call (tree exp, rtx target, int ignore)
n_named_args = num_actuals;
/* Make a vector to hold all the information about each arg. */
- args = XALLOCAVEC (struct arg_data, num_actuals);
- memset (args, 0, num_actuals * sizeof (struct arg_data));
+ args = XCNEWVEC (struct arg_data, num_actuals);
/* Build up entries in the ARGS array, compute the size of the
arguments into ARGS_SIZE, etc. */
@@ -4265,6 +4264,7 @@ expand_call (tree exp, rtx target, int ignore)
currently_expanding_call--;
free (stack_usage_map_buf);
+ free (args);
/* Join result with returned bounds so caller may use them if needed. */
target = chkp_join_splitted_slot (target, valbnd);
--
2.11.0
