From 95875a9b23ef741f0f0486c67bf4ded4b0c90983 Mon Sep 17 00:00:00 2001
From: Jakub Jelinek <jakub@redhat.com>
Date: Mon, 16 Jan 2012 16:32:14 -0500
Subject: [PATCH] re PR c++/51854 (ICE in mangle.c with literal of complex
 floating type)

	PR c++/51854
	* mangle.c (write_template_arg_literal): Handle complex.

From-SVN: r183222
---
 gcc/cp/ChangeLog                    |  5 +++++
 gcc/cp/mangle.c                     | 19 +++++++++++++++++++
 gcc/testsuite/ChangeLog             |  3 +++
 gcc/testsuite/g++.dg/abi/mangle60.C | 20 ++++++++++++++++++++
 4 files changed, 47 insertions(+)
 create mode 100644 gcc/testsuite/g++.dg/abi/mangle60.C

diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index e3ef5f2e813..e90f8331204 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,8 @@
+2012-01-16  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c++/51854
+	* mangle.c (write_template_arg_literal): Handle complex.
+
 2012-01-16  Jason Merrill  <jason@redhat.com>
 
 	PR c++/51827
diff --git a/gcc/cp/mangle.c b/gcc/cp/mangle.c
index 15b1aca09f5..34f19efc42e 100644
--- a/gcc/cp/mangle.c
+++ b/gcc/cp/mangle.c
@@ -2927,6 +2927,25 @@ write_template_arg_literal (const tree value)
 	write_real_cst (value);
 	break;
 
+      case COMPLEX_CST:
+	if (TREE_CODE (TREE_REALPART (value)) == INTEGER_CST
+	    && TREE_CODE (TREE_IMAGPART (value)) == INTEGER_CST)
+	  {
+	    write_integer_cst (TREE_REALPART (value));
+	    write_char ('_');
+	    write_integer_cst (TREE_IMAGPART (value));
+	  }
+	else if (TREE_CODE (TREE_REALPART (value)) == REAL_CST
+		 && TREE_CODE (TREE_IMAGPART (value)) == REAL_CST)
+	  {
+	    write_real_cst (TREE_REALPART (value));
+	    write_char ('_');
+	    write_real_cst (TREE_IMAGPART (value));
+	  }
+	else
+	  gcc_unreachable ();
+	break;
+
       case STRING_CST:
 	sorry ("string literal in function template signature");
 	break;
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 9fa8e43365f..af5f550b839 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,5 +1,8 @@
 2012-01-16  Jason Merrill  <jason@redhat.com>
 
+	PR c++/51854
+	* g++.dg/abi/mangle60.C: New.
+
 	PR c++/51827
 	* g++.dg/pch/mangle1.{C,Hs}: New.
 
diff --git a/gcc/testsuite/g++.dg/abi/mangle60.C b/gcc/testsuite/g++.dg/abi/mangle60.C
new file mode 100644
index 00000000000..f7e893a558a
--- /dev/null
+++ b/gcc/testsuite/g++.dg/abi/mangle60.C
@@ -0,0 +1,20 @@
+// PR c++/51854
+// { dg-options "" }
+
+template <unsigned N> struct A;
+
+template <typename U, typename V>
+char foo(U, V);
+
+// { dg-final { scan-assembler "_Z3barIiEvP1AIXszcl3foocvT__ELCi0_42EEEE" } }
+template <typename U>
+void bar(A<sizeof(foo(U(), 42i))> *);
+
+// { dg-final { scan-assembler "_Z3bazIiEvP1AIXszcl3foocvT__ELCf00000000_00000000EEEE" } }
+template <typename U>
+void baz(A<sizeof(foo(U(), 0.0fj))> *);
+
+int main() {
+   bar<int>(0);
+   baz<int>(0);
+}
-- 
2.30.2