From: Jan Hubicka <jh@suse.cz>
Date: Sat, 10 Oct 2020 20:16:59 +0000 (+0200)
Subject: Fix ICE in remap_arguments with removed parameters.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=988f0466e80a6e4cc758f4df387b6c021b1cb078;p=gcc.git

Fix ICE in remap_arguments with removed parameters.

	* ipa-modref.c (remap_arguments): Check range in map access.
---

diff --git a/gcc/ipa-modref.c b/gcc/ipa-modref.c
index 4330b9ec10e..0fbb943e57c 100644
--- a/gcc/ipa-modref.c
+++ b/gcc/ipa-modref.c
@@ -1333,7 +1333,12 @@ remap_arguments (vec <int> *map, modref_records *tt)
 	  modref_access_node *access_node;
 	  FOR_EACH_VEC_SAFE_ELT (ref_node->accesses, k, access_node)
 	    if (access_node->parm_index > 0)
-	      access_node->parm_index = (*map)[access_node->parm_index];
+	      {
+		if (access_node->parm_index < (int)map->length ())
+		  access_node->parm_index = (*map)[access_node->parm_index];
+		else
+		  access_node->parm_index = -1;
+	      }
 	}
     }
 }