Index: lib/Target/PowerPC/PPCISelLowering.cpp
===================================================================
--- lib/Target/PowerPC/PPCISelLowering.cpp
+++ lib/Target/PowerPC/PPCISelLowering.cpp
@@ -799,6 +799,8 @@
         setOperationAction(ISD::FP_EXTEND, MVT::f128, Legal);
         setLoadExtAction(ISD::EXTLOAD, MVT::f128, MVT::f64, Expand);
         setOperationAction(ISD::FMA, MVT::f128, Legal);
+        setOperationAction(ISD::SINT_TO_FP, MVT::i64, Legal);
+        setOperationAction(ISD::UINT_TO_FP, MVT::i64, Legal);
       }
 
     }
Index: lib/Target/PowerPC/PPCInstrVSX.td
===================================================================
--- lib/Target/PowerPC/PPCInstrVSX.td
+++ lib/Target/PowerPC/PPCInstrVSX.td
@@ -2512,7 +2512,12 @@
 
   // Convert (Un)Signed DWord -> QP
   def XSCVSDQP  : X_VT5_XO5_VB5_TyVB<63, 10, 836, "xscvsdqp", vfrc, []>;
+  def : Pat<(f128 (sint_to_fp i64:$src)),
+            (f128 (XSCVSDQP (COPY_TO_REGCLASS $src, VFRC)))>;
+
   def XSCVUDQP  : X_VT5_XO5_VB5_TyVB<63,  2, 836, "xscvudqp", vfrc, []>;
+  def : Pat<(f128 (uint_to_fp i64:$src)),
+            (f128 (XSCVUDQP (COPY_TO_REGCLASS $src, VFRC)))>;
 
   let UseVSXReg = 1 in {
   //===--------------------------------------------------------------------===//
@@ -3113,6 +3118,17 @@
             (COPY_TO_REGCLASS (DFLOADf32 ixaddr:$src), VSFRC)>;
   def : Pat<(f32 (fpround (f64 (extloadf32 ixaddr:$src)))),
             (f32 (DFLOADf32 ixaddr:$src))>;
+
+  // Convert (Un)Signed DWord in memory -> QP
+  def : Pat<(f128 (sint_to_fp (i64 (load xaddr:$src)))),
+            (f128 (XSCVSDQP (LXSDX xaddr:$src)))>;
+  def : Pat<(f128 (sint_to_fp (i64 (load ixaddr:$src)))),
+            (f128 (XSCVSDQP (LXSD ixaddr:$src)))>;
+  def : Pat<(f128 (uint_to_fp (i64 (load xaddr:$src)))),
+            (f128 (XSCVUDQP (LXSDX xaddr:$src)))>;
+  def : Pat<(f128 (uint_to_fp (i64 (load ixaddr:$src)))),
+            (f128 (XSCVUDQP (LXSD ixaddr:$src)))>;
+
 } // end HasP9Vector, AddedComplexity
 
 let Predicates = [HasP9Vector] in {
Index: test/CodeGen/PowerPC/f128-conv.ll
===================================================================
--- /dev/null
+++ test/CodeGen/PowerPC/f128-conv.ll
@@ -0,0 +1,70 @@
+; RUN: llc -mcpu=pwr9 -mtriple=powerpc64le-unknown-unknown \
+; RUN:   -enable-ppc-quad-precision -ppc-vsr-nums-as-vr < %s | FileCheck %s
+
+@mem = global [5 x i64] [i64 56, i64 63, i64 3, i64 5, i64 6], align 8
+@umem = global [5 x i64] [i64 560, i64 100, i64 34, i64 2, i64 5], align 8
+
+; Function Attrs: norecurse nounwind
+define void @sdwConv2qp(fp128* nocapture %a, i64 %b) {
+entry:
+  %conv = sitofp i64 %b to fp128
+  store fp128 %conv, fp128* %a, align 16
+  ret void
+
+; CHECK-LABEL: sdwConv2qp
+; CHECK: mtvsrd [[REG:[0-9]+]], 4
+; CHECK-NEXT: xscvsdqp [[REG]], [[REG]]
+; CHECK-NEXT: stxv [[REG]], 0(3)
+; CHECK-NEXT: blr
+}
+
+; Function Attrs: norecurse nounwind
+define void @sdwConv2qp_02(fp128* nocapture %a) {
+entry:
+  %0 = load i64, i64* getelementptr inbounds 
+                        ([5 x i64], [5 x i64]* @mem, i64 0, i64 2), align 8
+  %conv = sitofp i64 %0 to fp128
+  store fp128 %conv, fp128* %a, align 16
+  ret void
+
+; CHECK-LABEL: sdwConv2qp_02
+; CHECK: addis [[REG:[0-9]+]], 2, .LC0@toc@ha
+; CHECK: ld [[REG]], .LC0@toc@l([[REG]])
+; CHECK: lxsd [[REG0:[0-9]+]], 16([[REG]])
+; CHECK-NEXT: xscvsdqp [[REG0]], [[REG0]]
+; CHECK-NEXT: stxv [[REG0]], 0(3)
+; CHECK-NEXT: blr
+}
+
+; Function Attrs: norecurse nounwind
+define void @udwConv2qp(fp128* nocapture %a, i64 %b) {
+entry:
+  %conv = uitofp i64 %b to fp128
+  store fp128 %conv, fp128* %a, align 16
+  ret void
+
+; CHECK-LABEL: udwConv2qp
+; CHECK: mtvsrd [[REG:[0-9]+]], 4
+; CHECK-NEXT: xscvudqp [[REG]], [[REG]]
+; CHECK-NEXT: stxv [[REG]], 0(3)
+; CHECK-NEXT: blr
+}
+
+; Function Attrs: norecurse nounwind
+define void @udwConv2qp_02(fp128* nocapture %a) {
+entry:
+  %0 = load i64, i64* getelementptr inbounds
+                        ([5 x i64], [5 x i64]* @umem, i64 0, i64 4), align 8
+  %conv = uitofp i64 %0 to fp128
+  store fp128 %conv, fp128* %a, align 16
+  ret void
+
+; CHECK-LABEL: udwConv2qp_02
+; CHECK: addis [[REG:[0-9]+]], 2, .LC1@toc@ha
+; CHECK: ld [[REG]], .LC1@toc@l([[REG]])
+; CHECK: lxsd [[REG0:[0-9]+]], 32([[REG]])
+; CHECK-NEXT: xscvudqp [[REG0]], [[REG0]]
+; CHECK-NEXT: stxv [[REG0]], 0(3)
+; CHECK-NEXT: blr
+}
+