From: Richard Guenther <rguenther@suse.de>
Date: Tue, 28 Feb 2012 09:13:40 +0000 (+0000)
Subject: re PR lto/52400 (lto1: ICE with extern on static linkage)
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=95510497873486319b680dfedf017415a2bb8173;p=gcc.git

re PR lto/52400 (lto1: ICE with extern on static linkage)

2012-02-28  Richard Guenther  <rguenther@suse.de>

	PR lto/52400
	* lto.c (lto_register_function_decl_in_symtab): Do not register
	a reverse renamed decl mapping.

	* g++.dg/lto/pr52400_0.C: New testcase.

From-SVN: r184618
---

diff --git a/gcc/lto/ChangeLog b/gcc/lto/ChangeLog
index 825d268e290..6d074db096c 100644
--- a/gcc/lto/ChangeLog
+++ b/gcc/lto/ChangeLog
@@ -1,3 +1,9 @@
+2012-02-28  Richard Guenther  <rguenther@suse.de>
+
+	PR lto/52400
+	* lto.c (lto_register_function_decl_in_symtab): Do not register
+	a reverse renamed decl mapping.
+
 2012-01-06  Jakub Jelinek  <jakub@redhat.com>
 
 	PR lto/51774
diff --git a/gcc/lto/lto.c b/gcc/lto/lto.c
index 2ec6c44906e..f267d2a4ec4 100644
--- a/gcc/lto/lto.c
+++ b/gcc/lto/lto.c
@@ -689,13 +689,6 @@ lto_register_function_decl_in_symtab (struct data_in *data_in, tree decl)
 	  lto_record_renamed_decl (data_in->file_data,
 				   IDENTIFIER_POINTER (old_assembler_name),
 				   IDENTIFIER_POINTER (new_assembler_name));
-
-	  /* Also register the reverse mapping so that we can find the
-	     new name given to an existing assembler name (used when
-	     restoring alias pairs in input_constructors_or_inits.  */
-	  lto_record_renamed_decl (data_in->file_data,
-				   IDENTIFIER_POINTER (new_assembler_name),
-				   IDENTIFIER_POINTER (old_assembler_name));
 	}
     }
 
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index d1365a0e19d..ee4e5f34ade 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2012-02-28  Richard Guenther  <rguenther@suse.de>
+
+	PR lto/52400
+	* g++.dg/lto/pr52400_0.C: New testcase.
+
 2012-02-28  Georg-Johann Lay  <avr@gjlay.de>
 
 	* gcc.target/avr/torture/builtins-1.c: New test.
diff --git a/gcc/testsuite/g++.dg/lto/pr52400_0.C b/gcc/testsuite/g++.dg/lto/pr52400_0.C
new file mode 100644
index 00000000000..b1a7e6634c7
--- /dev/null
+++ b/gcc/testsuite/g++.dg/lto/pr52400_0.C
@@ -0,0 +1,18 @@
+// { dg-lto-do run }
+
+extern "C" {
+  static int f4(int);
+
+int f5(int a) {
+  extern int f4(int);
+  return f4(a);
+}
+}
+
+int f4(int a) { return 4+a; }
+
+int main(int argc, char *argv[])
+{
+  int a = f4(1);
+  return !(a == 5);
+}