Index: lib/Target/PowerPC/PPCISelLowering.cpp
===================================================================
--- lib/Target/PowerPC/PPCISelLowering.cpp
+++ lib/Target/PowerPC/PPCISelLowering.cpp
@@ -12282,6 +12282,13 @@
     bool ValidTypeForStoreFltAsInt = (Op1VT == MVT::i32) ||
       (Subtarget.hasP9Vector() && (Op1VT == MVT::i8 || Op1VT == MVT::i16));
 
+    // STORE (FP_TO_SINT MVT::f128) is legal.
+    if (N->getOperand(1).getOpcode() == ISD::FP_TO_SINT &&
+        ValidTypeForStoreFltAsInt &&
+        N->getOperand(1).getOperand(0).getValueType() == MVT::f128) {
+      return SDValue();
+    }
+
     // Turn STORE (FP_TO_SINT F) -> STFIWX(FCTIWZ(F)).
     if (Subtarget.hasSTFIWX() && !cast<StoreSDNode>(N)->isTruncatingStore() &&
         N->getOperand(1).getOpcode() == ISD::FP_TO_SINT &&
Index: lib/Target/PowerPC/PPCInstrVSX.td
===================================================================
--- lib/Target/PowerPC/PPCInstrVSX.td
+++ lib/Target/PowerPC/PPCInstrVSX.td
@@ -1259,6 +1259,9 @@
                           "stxsspx $XT, $dst", IIC_LdStSTFD, []>;
     def STXSIWX : XX1Form_memOp<31, 140, (outs), (ins vsfrc:$XT, memrr:$dst),
                           "stxsiwx $XT, $dst", IIC_LdStSTFD, []>;
+    let isCodeGenOnly = 1 in
+    def STXSIWXq : XX1Form<31, 140, (outs), (ins vrrc:$XT, memrr:$dst),
+                          "stxsiwx $XT, $dst", IIC_LdStSTFD, []>;
 
     // Please note let isPseudo = 1 is not part of class Pseudo<>. Missing it
     // would cause these Pseudos are not expanded in expandPostRAPseudos()
@@ -2509,10 +2512,14 @@
   def : Pat<(i64 (fp_to_sint f128:$src)),
             (i64 (MFVRD (XSCVQPSDZ $src)))>;
   def XSCVQPSWZ : X_VT5_XO5_VB5<63,  9, 836, "xscvqpswz", []>;
+  def : Pat<(i32 (fp_to_sint f128:$src)),
+            (i32 (MFVSRWZ (COPY_TO_REGCLASS (XSCVQPSWZ $src), VFRC)))>;
   def XSCVQPUDZ : X_VT5_XO5_VB5<63, 17, 836, "xscvqpudz", []>;
   def : Pat<(i64 (fp_to_uint f128:$src)),
             (i64 (MFVRD (XSCVQPUDZ $src)))>;
   def XSCVQPUWZ : X_VT5_XO5_VB5<63,  1, 836, "xscvqpuwz", []>;
+  def : Pat<(i32 (fp_to_uint f128:$src)),
+            (i32 (MFVSRWZ (COPY_TO_REGCLASS (XSCVQPUWZ $src), VFRC)))>;
 
   // Convert (Un)Signed DWord -> QP
   def XSCVSDQP  : X_VT5_XO5_VB5_TyVB<63, 10, 836, "xscvsdqp", vfrc, []>;
@@ -3159,6 +3166,10 @@
             (STXSD (COPY_TO_REGCLASS (XSCVQPSDZ $src), VFRC), xoaddr:$dst)>;
   def : Pat<(store (i64 (fp_to_uint f128:$src)), xoaddr:$dst),
             (STXSD (COPY_TO_REGCLASS (XSCVQPUDZ $src), VFRC), xoaddr:$dst)>;
+  def : Pat<(store (i32 (fp_to_sint f128:$src)), xoaddr:$dst),
+            (STXSIWXq (XSCVQPSWZ $src), xoaddr:$dst)>;
+  def : Pat<(store (i32 (fp_to_uint f128:$src)), xoaddr:$dst),
+            (STXSIWXq (XSCVQPUWZ $src), xoaddr:$dst)>;
 
 } // end HasP9Vector, AddedComplexity
 
Index: test/CodeGen/PowerPC/f128-truncateNconv.ll
===================================================================
--- test/CodeGen/PowerPC/f128-truncateNconv.ll
+++ test/CodeGen/PowerPC/f128-truncateNconv.ll
@@ -156,3 +156,155 @@
 ; CHECK-NEXT: stxsd [[CONV]], 0(5)
 ; CHECK-NEXT: blr
 }
+
+; Function Attrs: norecurse nounwind readonly
+define signext i32 @qpConv2sw(fp128* nocapture readonly %a)  {
+entry:
+  %0 = load fp128, fp128* %a, align 16
+  %conv = fptosi fp128 %0 to i32
+  ret i32 %conv
+
+; CHECK-LABEL: qpConv2sw
+; CHECK: lxv [[REG:[0-9]+]], 0(3)
+; CHECK-NEXT: xscvqpswz [[CONV:[0-9]+]], [[REG]]
+; CHECK-NEXT: mfvsrwz [[REG2:[0-9]+]], [[CONV]]
+; CHECK-NEXT: extsw 3, [[REG2]]
+; CHECK-NEXT: blr
+}
+
+; Function Attrs: norecurse nounwind
+define void @qpConv2sw_02(i32* nocapture %res) {
+entry:
+  %0 = load fp128, fp128* getelementptr inbounds
+                            ([4 x fp128], [4 x fp128]* @f128Array, i64 0,
+                             i64 2), align 16
+  %conv = fptosi fp128 %0 to i32
+  store i32 %conv, i32* %res, align 4
+  ret void
+
+; CHECK-LABEL: qpConv2sw_02
+; CHECK: addis [[REG0:[0-9]+]], 2, .LC0@toc@ha
+; CHECK: ld [[REG0]], .LC0@toc@l([[REG0]])
+; CHECK: lxv [[REG:[0-9]+]], 32([[REG0]])
+; CHECK-NEXT: xscvqpswz [[CONV:[0-9]+]], [[REG]]
+; CHECK-NEXT: stxsiwx [[CONV]], 0, 3
+; CHECK-NEXT: blr
+}
+
+; Function Attrs: norecurse nounwind readonly
+define signext i32 @qpConv2sw_03(fp128* nocapture readonly %a)  {
+entry:
+  %0 = load fp128, fp128* %a, align 16
+  %1 = load fp128, fp128* getelementptr inbounds
+                            ([4 x fp128], [4 x fp128]* @f128Array, i64 0,
+                             i64 1), align 16
+  %add = fadd fp128 %0, %1
+  %conv = fptosi fp128 %add to i32
+  ret i32 %conv
+
+; CHECK-LABEL: qpConv2sw_03
+; CHECK: addis [[REG0:[0-9]+]], 2, .LC0@toc@ha
+; CHECK-DAG: ld [[REG0]], .LC0@toc@l([[REG0]])
+; CHECK-DAG: lxv [[REG1:[0-9]+]], 16([[REG0]])
+; CHECK-DAG: lxv [[REG:[0-9]+]], 0(3)
+; CHECK-NEXT: xsaddqp [[ADD:[0-9]+]], [[REG]], [[REG1]]
+; CHECK-NEXT: xscvqpswz [[CONV:[0-9]+]], [[ADD]]
+; CHECK-NEXT: mfvsrwz [[REG2:[0-9]+]], [[CONV]]
+; CHECK-NEXT: extsw 3, [[REG2]]
+; CHECK-NEXT: blr
+}
+
+; Function Attrs: norecurse nounwind
+define void @qpConv2sw_04(fp128* nocapture readonly %a,
+                          fp128* nocapture readonly %b, i32* nocapture %res) {
+entry:
+  %0 = load fp128, fp128* %a, align 16
+  %1 = load fp128, fp128* %b, align 16
+  %add = fadd fp128 %0, %1
+  %conv = fptosi fp128 %add to i32
+  store i32 %conv, i32* %res, align 4
+  ret void
+
+; CHECK-LABEL: qpConv2sw_04
+; CHECK-DAG: lxv [[REG1:[0-9]+]], 0(4)
+; CHECK-DAG: lxv [[REG:[0-9]+]], 0(3)
+; CHECK-NEXT: xsaddqp [[ADD:[0-9]+]], [[REG]], [[REG1]]
+; CHECK-NEXT: xscvqpswz [[CONV:[0-9]+]], [[ADD]]
+; CHECK-NEXT: stxsiwx [[CONV]], 0, 5
+; CHECK-NEXT: blr
+}
+
+; Function Attrs: norecurse nounwind readonly
+define zeroext i32 @qpConv2uw(fp128* nocapture readonly %a)  {
+entry:
+  %0 = load fp128, fp128* %a, align 16
+  %conv = fptoui fp128 %0 to i32
+  ret i32 %conv
+
+; CHECK-LABEL: qpConv2uw
+; CHECK: lxv [[REG:[0-9]+]], 0(3)
+; CHECK-NEXT: xscvqpuwz [[CONV:[0-9]+]], [[ADD]]
+; CHECK-NEXT: mfvsrwz 3, [[CONV]]
+; CHECK: blr
+}
+
+; Function Attrs: norecurse nounwind
+define void @qpConv2uw_02(i32* nocapture %res) {
+entry:
+  %0 = load fp128, fp128* getelementptr inbounds
+                            ([4 x fp128], [4 x fp128]* @f128Array, i64 0,
+                             i64 2), align 16
+  %conv = fptoui fp128 %0 to i32
+  store i32 %conv, i32* %res, align 4
+  ret void
+
+; CHECK-LABEL: qpConv2uw_02
+; CHECK: addis [[REG0:[0-9]+]], 2, .LC0@toc@ha
+; CHECK: ld [[REG0]], .LC0@toc@l([[REG0]])
+; CHECK: lxv [[REG:[0-9]+]], 32([[REG0]])
+; CHECK-NEXT: xscvqpuwz [[CONV:[0-9]+]], [[ADD]]
+; CHECK-NEXT: stxsiwx [[CONV]], 0, 3
+; CHECK: blr
+}
+
+; Function Attrs: norecurse nounwind readonly
+define zeroext i32 @qpConv2uw_03(fp128* nocapture readonly %a)  {
+entry:
+  %0 = load fp128, fp128* %a, align 16
+  %1 = load fp128, fp128* getelementptr inbounds
+                            ([4 x fp128], [4 x fp128]* @f128Array, i64 0,
+                             i64 1), align 16
+  %add = fadd fp128 %0, %1
+  %conv = fptoui fp128 %add to i32
+  ret i32 %conv
+
+; CHECK-LABEL: qpConv2uw_03
+; CHECK: addis [[REG0:[0-9]+]], 2, .LC0@toc@ha
+; CHECK-DAG: ld [[REG0]], .LC0@toc@l([[REG0]])
+; CHECK-DAG: lxv [[REG1:[0-9]+]], 16([[REG0]])
+; CHECK-DAG: lxv [[REG:[0-9]+]], 0(3)
+; CHECK-NEXT: xsaddqp [[ADD:[0-9]+]], [[REG]], [[REG1]]
+; CHECK-NEXT: xscvqpuwz [[CONV:[0-9]+]], [[ADD]]
+; CHECK-NEXT: mfvsrwz 3, [[CONV]]
+; CHECK: blr
+}
+
+; Function Attrs: norecurse nounwind
+define void @qpConv2uw_04(fp128* nocapture readonly %a,
+                          fp128* nocapture readonly %b, i32* nocapture %res) {
+entry:
+  %0 = load fp128, fp128* %a, align 16
+  %1 = load fp128, fp128* %b, align 16
+  %add = fadd fp128 %0, %1
+  %conv = fptoui fp128 %add to i32
+  store i32 %conv, i32* %res, align 4
+  ret void
+
+; CHECK-LABEL: qpConv2uw_04
+; CHECK-DAG: lxv [[REG1:[0-9]+]], 0(4)
+; CHECK-DAG: lxv [[REG:[0-9]+]], 0(3)
+; CHECK-NEXT: xsaddqp [[ADD:[0-9]+]], [[REG]], [[REG1]]
+; CHECK-NEXT: xscvqpuwz [[CONV:[0-9]+]], [[ADD]]
+; CHECK-NEXT: stxsiwx [[CONV]], 0, 5
+; CHECK: blr
+}