diff --git a/gcc/config/rs6000/rs6000.cc b/gcc/config/rs6000/rs6000.cc
index df491bee2ea..243247fb838 100644
--- a/gcc/config/rs6000/rs6000.cc
+++ b/gcc/config/rs6000/rs6000.cc
@@ -10112,6 +10112,7 @@ rs6000_emit_set_long_const (rtx dest, HOST_WIDE_INT c)
 {
   rtx temp;
   HOST_WIDE_INT ud1, ud2, ud3, ud4;
+  HOST_WIDE_INT orig_c = c;
 
   ud1 = c & 0xffff;
   c = c >> 16;
@@ -10137,6 +10138,27 @@ rs6000_emit_set_long_const (rtx dest, HOST_WIDE_INT c)
 			gen_rtx_IOR (DImode, copy_rtx (temp),
 				     GEN_INT (ud1)));
     }
+  else if (ud4 == 0 && ud3 == 0 && (ud2 & 0x8000) && !(ud1 & 0x8000))
+    {
+      temp = !can_create_pseudo_p () ? dest : gen_reg_rtx (DImode);
+
+      /* li+oris */
+      emit_move_insn (copy_rtx (temp), GEN_INT (ud1));
+      emit_move_insn (dest, gen_rtx_IOR (DImode, copy_rtx (temp),
+					 GEN_INT (ud2 << 16)));
+    }
+  else if ((ud4 == 0xffff && ud3 == 0xffff)
+	   && ((ud1 & 0x8000) || (ud1 == 0 && !(ud2 & 0x8000))))
+    {
+      temp = !can_create_pseudo_p () ? dest : gen_reg_rtx (DImode);
+
+      HOST_WIDE_INT imm = (ud1 & 0x8000) ? ((ud1 ^ 0x8000) - 0x8000)
+					 : ((ud2 << 16) - 0x80000000);
+      /* li/lis + xoris */
+      emit_move_insn (copy_rtx (temp), GEN_INT (imm));
+      emit_move_insn (dest, gen_rtx_XOR (DImode, copy_rtx (temp),
+					 GEN_INT (orig_c ^ imm)));
+    }
   else if (ud3 == 0 && ud4 == 0)
     {
       temp = !can_create_pseudo_p () ? dest : gen_reg_rtx (DImode);
diff --git a/gcc/testsuite/gcc.target/powerpc/pr106708.c b/gcc/testsuite/gcc.target/powerpc/pr106708.c
new file mode 100644
index 00000000000..6445fa47747
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/pr106708.c
@@ -0,0 +1,10 @@
+/* PR target/106708 */
+/* { dg-options "-O2 -mdejagnu-cpu=power8" } */
+/* { dg-do compile { target has_arch_ppc64 } } */
+
+#include "pr106708.h"
+
+/* { dg-final { scan-assembler-times {\mli\M} 2 } } */
+/* { dg-final { scan-assembler-times {\mlis\M} 1 } } */
+/* { dg-final { scan-assembler-times {\moris\M} 1 } } */
+/* { dg-final { scan-assembler-times {\mxoris\M} 2 } } */
diff --git a/gcc/testsuite/gcc.target/powerpc/pr106708.h b/gcc/testsuite/gcc.target/powerpc/pr106708.h
new file mode 100644
index 00000000000..ad07eb30547
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/pr106708.h
@@ -0,0 +1,9 @@
+/* li/lis + oris/xoris */
+void  __attribute__ ((__noinline__, __noclone__)) foo (long long *arg)
+{
+  *arg++ = 0x98765432ULL;
+  *arg++ = 0xffffffff7cdeab55ULL;
+  *arg++ = 0xffffffff65430000ULL;
+}
+
+
diff --git a/gcc/testsuite/gcc.target/powerpc/pr106708_1.c b/gcc/testsuite/gcc.target/powerpc/pr106708_1.c
new file mode 100644
index 00000000000..df65c321f6b
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/pr106708_1.c
@@ -0,0 +1,17 @@
+/* PR target/106708 */
+/* { dg-do run } */
+/* { dg-options "-O2" } */
+
+#include "pr106708.h"
+
+long long arr[] = {0x98765432ULL, 0xffffffff7cdeab55ULL, 0xffffffff65430000ULL};
+int
+main ()
+{
+  long long a[3];
+
+  foo (a);
+  if (__builtin_memcmp (a, arr, sizeof (arr)) != 0)
+    __builtin_abort ();
+  return 0;
+}