From: Martin Liska <mliska@suse.cz>
Date: Fri, 8 Jul 2016 20:22:22 +0000 (+0200)
Subject: Do not consider COMPLEX_TYPE as fold_convertible_p
X-Git-Tag: releases/gcc-4.9.4~80
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ad0f3a38621f6211ba3368494e5c9e0459e7ae7b;p=thirdparty%2Fgcc.git

Do not consider COMPLEX_TYPE as fold_convertible_p

	Backported from mainline
	2016-07-08  Martin Liska  <mliska@suse.cz>

	PR middle-end/71606
	* fold-const.c (fold_convertible_p): As COMPLEX_TYPE
	folding produces SAVE_EXPRs, thus return false for the type.
	Backported from mainline
	2016-07-08  Martin Liska  <mliska@suse.cz>

	* gcc.dg/torture/pr71606.c: New test.

From-SVN: r238174
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ef4bc992e3e2..683efeb1a2ef 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,12 @@
+2016-07-08  Martin Liska  <mliska@suse.cz>
+
+	Backported from mainline
+	2016-07-08  Martin Liska  <mliska@suse.cz>
+
+	PR middle-end/71606
+	* fold-const.c (fold_convertible_p): As COMPLEX_TYPE
+	folding produces SAVE_EXPRs, thus return false for the type.
+
 2016-07-07  Jakub Jelinek  <jakub@redhat.com>
 
 	Backported from mainline
diff --git a/gcc/fold-const.c b/gcc/fold-const.c
index 61bbf82e169c..f6d92abd2504 100644
--- a/gcc/fold-const.c
+++ b/gcc/fold-const.c
@@ -1933,7 +1933,6 @@ fold_convertible_p (const_tree type, const_tree arg)
 
     case REAL_TYPE:
     case FIXED_POINT_TYPE:
-    case COMPLEX_TYPE:
     case VECTOR_TYPE:
     case VOID_TYPE:
       return TREE_CODE (type) == TREE_CODE (orig);
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 6949e8f23fd9..38717717b77f 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,10 @@
+2016-07-08  Martin Liska  <mliska@suse.cz>
+
+	Backported from mainline
+	2016-07-08  Martin Liska  <mliska@suse.cz>
+
+	* gcc.dg/torture/pr71606.c: New test.
+
 2016-07-07  Jakub Jelinek  <jakub@redhat.com>
 
 	Backported from mainline
diff --git a/gcc/testsuite/gcc.dg/torture/pr71606.c b/gcc/testsuite/gcc.dg/torture/pr71606.c
new file mode 100644
index 000000000000..b0cc26ac7715
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/pr71606.c
@@ -0,0 +1,11 @@
+_Complex a;
+void fn1 ();
+
+int main () {
+  fn1 (a);
+  return 0;
+}
+
+void fn1 (__complex__ long double p1) {
+  __imag__ p1 = 6.0L;
+}