diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index d49f1cd..62cafe7 100644
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -3479,6 +3479,31 @@
   "mov{b}\t{%h1, %h0|%h0, %h1}"
   [(set_attr "type" "imov")
    (set_attr "mode" "QI")])
+
+(define_code_iterator any_or_plus [plus ior xor])
+(define_insn_and_split "*insvti_highpart_1"
+  [(set (match_operand:TI 0 "nonimmediate_operand" "=ro,r,r,&r")
+	(any_or_plus:TI
+	  (and:TI
+	    (match_operand:TI 1 "nonimmediate_operand" "r,m,r,m")
+	    (match_operand:TI 3 "const_scalar_int_operand" "n,n,n,n"))
+	  (ashift:TI
+	    (zero_extend:TI
+	      (match_operand:DI 2 "nonimmediate_operand" "r,r,m,m"))
+	    (const_int 64))))]
+  "TARGET_64BIT
+   && CONST_WIDE_INT_P (operands[3])
+   && CONST_WIDE_INT_NUNITS (operands[3]) == 2
+   && CONST_WIDE_INT_ELT (operands[3], 0) == -1
+   && CONST_WIDE_INT_ELT (operands[3], 1) == 0"
+  "#"
+  "&& reload_completed"
+  [(clobber (const_int 0))]
+{
+  operands[4] = gen_lowpart (DImode, operands[1]);
+  split_double_concat (TImode, operands[0], operands[4], operands[2]);
+  DONE;
+})
 
 ;; Floating point push instructions.
 
@@ -11573,7 +11598,6 @@
    (set_attr "mode" "QI")])
 
 ;; Split DST = (HI<<32)|LO early to minimize register usage.
-(define_code_iterator any_or_plus [plus ior xor])
 (define_insn_and_split "*concat<mode><dwi>3_1"
   [(set (match_operand:<DWI> 0 "nonimmediate_operand" "=ro,r")
 	(any_or_plus:<DWI>
diff --git a/gcc/testsuite/gcc.target/i386/insvti_highpart-1.c b/gcc/testsuite/gcc.target/i386/insvti_highpart-1.c
new file mode 100644
index 0000000..4ae9ccf
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/insvti_highpart-1.c
@@ -0,0 +1,12 @@
+/* { dg-do compile { target int128 } } */
+/* { dg-options "-O2" } */
+
+__int128 foo(__int128 x, unsigned long long y)
+{
+  __int128 t = (__int128)y << 64;
+  __int128 r = (x & ~0ull) | t;
+  return r;
+}
+
+/* { dg-final { scan-assembler-not "xorl" } } */
+/* { dg-final { scan-assembler-not "orq" } } */