diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
index c3c7a16b106..cf045733843 100644
--- a/libgcc/ChangeLog
+++ b/libgcc/ChangeLog
@@ -1,3 +1,7 @@
+2019-05-12  Iain Sandoe  <iain@sandoe.co.uk>
+
+	* config/rs6000/darwin-vecsave.S: Set .machine appropriately.
+
 2019-05-07  Hongtao Liu  <hongtao.liu@intel.com>
 
 	* config/i386/cpuinfo.c (get_available_features): Detect BF16.
diff --git a/libgcc/config/rs6000/darwin-vecsave.S b/libgcc/config/rs6000/darwin-vecsave.S
index 7a4f509b372..df10b6f6ce4 100644
--- a/libgcc/config/rs6000/darwin-vecsave.S
+++ b/libgcc/config/rs6000/darwin-vecsave.S
@@ -31,8 +31,14 @@
    (4 bytes) to do the operation; for Vector regs, 2 instructions are
    required (8 bytes.).   */
 
+/* With some assemblers, we need the correct machine directive to get the
+   right CPU type / subtype in the file header.  */
+#if	__ppc64__
+	.machine ppc64
+#else
 	.machine ppc7400
-.text
+#endif
+	.text
 	.align 2
 
 .private_extern saveVEC