Index: llvm/include/llvm/CodeGen/GlobalISel/LegalizerHelper.h
===================================================================
--- llvm/include/llvm/CodeGen/GlobalISel/LegalizerHelper.h
+++ llvm/include/llvm/CodeGen/GlobalISel/LegalizerHelper.h
@@ -249,6 +249,8 @@
   LegalizeResult lowerUITOFP(MachineInstr &MI, unsigned TypeIdx, LLT Ty);
   LegalizeResult lowerSITOFP(MachineInstr &MI, unsigned TypeIdx, LLT Ty);
   LegalizeResult lowerFPTOUI(MachineInstr &MI, unsigned TypeIdx, LLT Ty);
+  LegalizeResult lowerFPTRUNC_F64_TO_F16(MachineInstr &MI);
+  LegalizeResult lowerFPTRUNC(MachineInstr &MI, unsigned TypeIdx, LLT Ty);
   LegalizeResult lowerMinMax(MachineInstr &MI, unsigned TypeIdx, LLT Ty);
   LegalizeResult lowerFCopySign(MachineInstr &MI, unsigned TypeIdx, LLT Ty);
   LegalizeResult lowerFMinNumMaxNum(MachineInstr &MI);
Index: llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
===================================================================
--- llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
+++ llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
@@ -2392,6 +2392,8 @@
     return lowerSITOFP(MI, TypeIdx, Ty);
   case G_FPTOUI:
     return lowerFPTOUI(MI, TypeIdx, Ty);
+  case G_FPTRUNC:
+    return lowerFPTRUNC(MI, TypeIdx, Ty);
   case G_SMIN:
   case G_SMAX:
   case G_UMIN:
@@ -4131,6 +4133,128 @@
   return Legalized;
 }
 
+// f64 -> f16 conversion using round-to-nearest-even rounding mode.
+LegalizerHelper::LegalizeResult
+LegalizerHelper::lowerFPTRUNC_F64_TO_F16(MachineInstr &MI) {
+  Register Dst = MI.getOperand(0).getReg();
+  Register Src = MI.getOperand(1).getReg();
+
+  if (MRI.getType(Src).isVector()) // TODO: Handle vectors directly.
+    return UnableToLegalize;
+
+  const unsigned ExpMask = 0x7ff;
+  const unsigned ExpBiasf64 = 1023;
+  const unsigned ExpBiasf16 = 15;
+  const LLT S32 = LLT::scalar(32);
+  const LLT S1 = LLT::scalar(1);
+
+  auto Unmerge = MIRBuilder.buildUnmerge(S32, Src);
+  Register U = Unmerge.getReg(0);
+  Register UH = Unmerge.getReg(1);
+
+  auto E = MIRBuilder.buildLShr(S32, UH, MIRBuilder.buildConstant(S32, 20));
+
+  // Subtract the fp64 exponent bias (1023) to get the real exponent and
+  // add the f16 bias (15) to get the biased exponent for the f16 format.
+  E = MIRBuilder.buildAdd(
+    S32, E, MIRBuilder.buildConstant(S32, -ExpBiasf64 + ExpBiasf16));
+  E = MIRBuilder.buildAnd(S32, E, MIRBuilder.buildConstant(S32, ExpMask));
+
+  auto M = MIRBuilder.buildLShr(S32, UH, MIRBuilder.buildConstant(S32, 8));
+  M = MIRBuilder.buildAnd(S32, M, MIRBuilder.buildConstant(S32, 0xffe));
+
+  auto MaskedSig = MIRBuilder.buildAnd(S32, UH,
+                                       MIRBuilder.buildConstant(S32, 0x1ff));
+  MaskedSig = MIRBuilder.buildOr(S32, MaskedSig, U);
+
+  auto Zero = MIRBuilder.buildConstant(S32, 0);
+  auto SigCmpNE0 = MIRBuilder.buildICmp(CmpInst::ICMP_NE, S1, MaskedSig, Zero);
+  auto Lo40Set = MIRBuilder.buildZExt(S32, SigCmpNE0);
+  M = MIRBuilder.buildOr(S32, M, Lo40Set);
+
+  // (M != 0 ? 0x0200 : 0) | 0x7c00;
+  auto Bits0x200 = MIRBuilder.buildConstant(S32, 0x0200);
+  auto CmpM_NE0 = MIRBuilder.buildICmp(CmpInst::ICMP_NE, S1, M, Zero);
+  auto SelectCC = MIRBuilder.buildSelect(S32, CmpM_NE0, Bits0x200, Zero);
+
+  auto Bits0x7c00 = MIRBuilder.buildConstant(S32, 0x7c00);
+  auto I = MIRBuilder.buildOr(S32, SelectCC, Bits0x7c00);
+
+  // N = M | (E << 12);
+  auto EShl12 = MIRBuilder.buildShl(S32, E, MIRBuilder.buildConstant(S32, 12));
+  auto N = MIRBuilder.buildOr(S32, M, EShl12);
+
+  // B = clamp(1-E, 0, 13);
+  auto One = MIRBuilder.buildConstant(S32, 1);
+  auto OneSubExp = MIRBuilder.buildSub(S32, One, E);
+  auto B = MIRBuilder.buildSMax(S32, OneSubExp, Zero);
+  B = MIRBuilder.buildSMin(S32, B, MIRBuilder.buildConstant(S32, 13));
+
+  auto SigSetHigh = MIRBuilder.buildOr(S32, M,
+                                       MIRBuilder.buildConstant(S32, 0x1000));
+
+  auto D = MIRBuilder.buildLShr(S32, SigSetHigh, B);
+  auto D0 = MIRBuilder.buildShl(S32, D, B);
+
+  auto D0_NE_SigSetHigh = MIRBuilder.buildICmp(CmpInst::ICMP_NE, S1,
+                                             D0, SigSetHigh);
+  auto D1 = MIRBuilder.buildZExt(S32, D0_NE_SigSetHigh);
+  D = MIRBuilder.buildOr(S32, D, D1);
+
+  auto CmpELtOne = MIRBuilder.buildICmp(CmpInst::ICMP_SLT, S1, E, One);
+  auto V = MIRBuilder.buildSelect(S32, CmpELtOne, D, N);
+
+  auto VLow3 = MIRBuilder.buildAnd(S32, V, MIRBuilder.buildConstant(S32, 7));
+  V = MIRBuilder.buildLShr(S32, V, MIRBuilder.buildConstant(S32, 2));
+
+  auto VLow3Eq3 = MIRBuilder.buildICmp(CmpInst::ICMP_EQ, S1, VLow3,
+                                       MIRBuilder.buildConstant(S32, 3));
+  auto V0 = MIRBuilder.buildZExt(S32, VLow3Eq3);
+
+  auto VLow3Gt5 = MIRBuilder.buildICmp(CmpInst::ICMP_SGT, S1, VLow3,
+                                       MIRBuilder.buildConstant(S32, 5));
+  auto V1 = MIRBuilder.buildZExt(S32, VLow3Gt5);
+
+  V1 = MIRBuilder.buildOr(S32, V0, V1);
+  V = MIRBuilder.buildAdd(S32, V, V1);
+
+  auto CmpEGt30 = MIRBuilder.buildICmp(CmpInst::ICMP_SGT,  S1,
+                                       E, MIRBuilder.buildConstant(S32, 30));
+  V = MIRBuilder.buildSelect(S32, CmpEGt30,
+                             MIRBuilder.buildConstant(S32, 0x7c00), V);
+
+  auto CmpEGt1039 = MIRBuilder.buildICmp(CmpInst::ICMP_EQ, S1,
+                                         E, MIRBuilder.buildConstant(S32, 1039));
+  V = MIRBuilder.buildSelect(S32, CmpEGt1039, I, V);
+
+  // Extract the sign bit.
+  auto Sign = MIRBuilder.buildLShr(S32, UH, MIRBuilder.buildConstant(S32, 16));
+  Sign = MIRBuilder.buildAnd(S32, Sign, MIRBuilder.buildConstant(S32, 0x8000));
+
+  // Insert the sign bit
+  V = MIRBuilder.buildOr(S32, Sign, V);
+
+  MIRBuilder.buildTrunc(Dst, V);
+  MI.eraseFromParent();
+  return Legalized;
+}
+
+LegalizerHelper::LegalizeResult
+LegalizerHelper::lowerFPTRUNC(MachineInstr &MI, unsigned TypeIdx, LLT Ty) {
+  Register Dst = MI.getOperand(0).getReg();
+  Register Src = MI.getOperand(1).getReg();
+
+  LLT DstTy = MRI.getType(Dst);
+  LLT SrcTy = MRI.getType(Src);
+  const LLT S64 = LLT::scalar(64);
+  const LLT S16 = LLT::scalar(16);
+
+  if (DstTy.getScalarType() == S16 && SrcTy.getScalarType() == S64)
+    return lowerFPTRUNC_F64_TO_F16(MI);
+
+  return UnableToLegalize;
+}
+
 static CmpInst::Predicate minMaxToCompare(unsigned Opc) {
   switch (Opc) {
   case TargetOpcode::G_SMIN:
Index: llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
===================================================================
--- llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
+++ llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
@@ -418,7 +418,8 @@
 
   getActionDefinitionsBuilder(G_FPTRUNC)
     .legalFor({{S32, S64}, {S16, S32}})
-    .scalarize(0);
+    .scalarize(0)
+    .lower();
 
   getActionDefinitionsBuilder(G_FPEXT)
     .legalFor({{S64, S32}, {S32, S16}})
Index: llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-fptrunc.mir
===================================================================
--- llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-fptrunc.mir
+++ llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-fptrunc.mir
@@ -71,3 +71,407 @@
     %2:_(<2 x s32>) = G_ANYEXT %1
     $vgpr0_vgpr1 = COPY %2
 ...
+
+---
+name: test_fptrunc_s64_to_s16
+body: |
+  bb.0:
+    liveins: $vgpr0_vgpr1
+
+    ; CHECK-LABEL: name: test_fptrunc_s64_to_s16
+    ; CHECK: [[COPY:%[0-9]+]]:_(s64) = COPY $vgpr0_vgpr1
+    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](s64)
+    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 20
+    ; CHECK: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; CHECK: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 -1008
+    ; CHECK: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[LSHR]], [[C1]]
+    ; CHECK: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 2047
+    ; CHECK: [[AND:%[0-9]+]]:_(s32) = G_AND [[ADD]], [[C2]]
+    ; CHECK: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; CHECK: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C3]](s32)
+    ; CHECK: [[C4:%[0-9]+]]:_(s32) = G_CONSTANT i32 4094
+    ; CHECK: [[AND1:%[0-9]+]]:_(s32) = G_AND [[LSHR1]], [[C4]]
+    ; CHECK: [[C5:%[0-9]+]]:_(s32) = G_CONSTANT i32 511
+    ; CHECK: [[AND2:%[0-9]+]]:_(s32) = G_AND [[UV1]], [[C5]]
+    ; CHECK: [[OR:%[0-9]+]]:_(s32) = G_OR [[AND2]], [[UV]]
+    ; CHECK: [[C6:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
+    ; CHECK: [[ICMP:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[OR]](s32), [[C6]]
+    ; CHECK: [[ZEXT:%[0-9]+]]:_(s32) = G_ZEXT [[ICMP]](s1)
+    ; CHECK: [[OR1:%[0-9]+]]:_(s32) = G_OR [[AND1]], [[ZEXT]]
+    ; CHECK: [[C7:%[0-9]+]]:_(s32) = G_CONSTANT i32 512
+    ; CHECK: [[ICMP1:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[OR1]](s32), [[C6]]
+    ; CHECK: [[SELECT:%[0-9]+]]:_(s32) = G_SELECT [[ICMP1]](s1), [[C7]], [[C6]]
+    ; CHECK: [[C8:%[0-9]+]]:_(s32) = G_CONSTANT i32 31744
+    ; CHECK: [[OR2:%[0-9]+]]:_(s32) = G_OR [[SELECT]], [[C8]]
+    ; CHECK: [[C9:%[0-9]+]]:_(s32) = G_CONSTANT i32 12
+    ; CHECK: [[SHL:%[0-9]+]]:_(s32) = G_SHL [[AND]], [[C9]](s32)
+    ; CHECK: [[OR3:%[0-9]+]]:_(s32) = G_OR [[OR1]], [[SHL]]
+    ; CHECK: [[C10:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
+    ; CHECK: [[SUB:%[0-9]+]]:_(s32) = G_SUB [[C10]], [[AND]]
+    ; CHECK: [[SMAX:%[0-9]+]]:_(s32) = G_SMAX [[SUB]], [[C6]]
+    ; CHECK: [[C11:%[0-9]+]]:_(s32) = G_CONSTANT i32 13
+    ; CHECK: [[SMIN:%[0-9]+]]:_(s32) = G_SMIN [[SMAX]], [[C11]]
+    ; CHECK: [[C12:%[0-9]+]]:_(s32) = G_CONSTANT i32 4096
+    ; CHECK: [[OR4:%[0-9]+]]:_(s32) = G_OR [[OR1]], [[C12]]
+    ; CHECK: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[OR4]], [[SMIN]](s32)
+    ; CHECK: [[SHL1:%[0-9]+]]:_(s32) = G_SHL [[LSHR2]], [[SMIN]](s32)
+    ; CHECK: [[ICMP2:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[SHL1]](s32), [[OR4]]
+    ; CHECK: [[ZEXT1:%[0-9]+]]:_(s32) = G_ZEXT [[ICMP2]](s1)
+    ; CHECK: [[OR5:%[0-9]+]]:_(s32) = G_OR [[LSHR2]], [[ZEXT1]]
+    ; CHECK: [[ICMP3:%[0-9]+]]:_(s1) = G_ICMP intpred(slt), [[AND]](s32), [[C10]]
+    ; CHECK: [[SELECT1:%[0-9]+]]:_(s32) = G_SELECT [[ICMP3]](s1), [[OR5]], [[OR3]]
+    ; CHECK: [[C13:%[0-9]+]]:_(s32) = G_CONSTANT i32 7
+    ; CHECK: [[AND3:%[0-9]+]]:_(s32) = G_AND [[SELECT1]], [[C13]]
+    ; CHECK: [[C14:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
+    ; CHECK: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[SELECT1]], [[C14]](s32)
+    ; CHECK: [[C15:%[0-9]+]]:_(s32) = G_CONSTANT i32 3
+    ; CHECK: [[ICMP4:%[0-9]+]]:_(s1) = G_ICMP intpred(eq), [[AND3]](s32), [[C15]]
+    ; CHECK: [[ZEXT2:%[0-9]+]]:_(s32) = G_ZEXT [[ICMP4]](s1)
+    ; CHECK: [[C16:%[0-9]+]]:_(s32) = G_CONSTANT i32 5
+    ; CHECK: [[ICMP5:%[0-9]+]]:_(s1) = G_ICMP intpred(sgt), [[AND3]](s32), [[C16]]
+    ; CHECK: [[ZEXT3:%[0-9]+]]:_(s32) = G_ZEXT [[ICMP5]](s1)
+    ; CHECK: [[OR6:%[0-9]+]]:_(s32) = G_OR [[ZEXT2]], [[ZEXT3]]
+    ; CHECK: [[ADD1:%[0-9]+]]:_(s32) = G_ADD [[LSHR3]], [[OR6]]
+    ; CHECK: [[C17:%[0-9]+]]:_(s32) = G_CONSTANT i32 30
+    ; CHECK: [[ICMP6:%[0-9]+]]:_(s1) = G_ICMP intpred(sgt), [[AND]](s32), [[C17]]
+    ; CHECK: [[SELECT2:%[0-9]+]]:_(s32) = G_SELECT [[ICMP6]](s1), [[C8]], [[ADD1]]
+    ; CHECK: [[C18:%[0-9]+]]:_(s32) = G_CONSTANT i32 1039
+    ; CHECK: [[ICMP7:%[0-9]+]]:_(s1) = G_ICMP intpred(eq), [[AND]](s32), [[C18]]
+    ; CHECK: [[SELECT3:%[0-9]+]]:_(s32) = G_SELECT [[ICMP7]](s1), [[OR2]], [[SELECT2]]
+    ; CHECK: [[C19:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CHECK: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C19]](s32)
+    ; CHECK: [[C20:%[0-9]+]]:_(s32) = G_CONSTANT i32 32768
+    ; CHECK: [[AND4:%[0-9]+]]:_(s32) = G_AND [[LSHR4]], [[C20]]
+    ; CHECK: [[OR7:%[0-9]+]]:_(s32) = G_OR [[AND4]], [[SELECT3]]
+    ; CHECK: [[COPY1:%[0-9]+]]:_(s32) = COPY [[OR7]](s32)
+    ; CHECK: $vgpr0 = COPY [[COPY1]](s32)
+    %0:_(s64) = COPY $vgpr0_vgpr1
+    %1:_(s16) = G_FPTRUNC %0
+    %2:_(s32) = G_ANYEXT %1
+    $vgpr0 = COPY %2
+...
+
+---
+name: test_fptrunc_v2s64_to_v2s16
+body: |
+  bb.0:
+    liveins: $vgpr0_vgpr1_vgpr2_vgpr3
+
+    ; CHECK-LABEL: name: test_fptrunc_v2s64_to_v2s16
+    ; CHECK: [[COPY:%[0-9]+]]:_(<2 x s64>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
+    ; CHECK: [[UV:%[0-9]+]]:_(s64), [[UV1:%[0-9]+]]:_(s64) = G_UNMERGE_VALUES [[COPY]](<2 x s64>)
+    ; CHECK: [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[UV]](s64)
+    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 20
+    ; CHECK: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C]](s32)
+    ; CHECK: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 -1008
+    ; CHECK: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[LSHR]], [[C1]]
+    ; CHECK: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 2047
+    ; CHECK: [[AND:%[0-9]+]]:_(s32) = G_AND [[ADD]], [[C2]]
+    ; CHECK: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; CHECK: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C3]](s32)
+    ; CHECK: [[C4:%[0-9]+]]:_(s32) = G_CONSTANT i32 4094
+    ; CHECK: [[AND1:%[0-9]+]]:_(s32) = G_AND [[LSHR1]], [[C4]]
+    ; CHECK: [[C5:%[0-9]+]]:_(s32) = G_CONSTANT i32 511
+    ; CHECK: [[AND2:%[0-9]+]]:_(s32) = G_AND [[UV3]], [[C5]]
+    ; CHECK: [[OR:%[0-9]+]]:_(s32) = G_OR [[AND2]], [[UV2]]
+    ; CHECK: [[C6:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
+    ; CHECK: [[ICMP:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[OR]](s32), [[C6]]
+    ; CHECK: [[ZEXT:%[0-9]+]]:_(s32) = G_ZEXT [[ICMP]](s1)
+    ; CHECK: [[OR1:%[0-9]+]]:_(s32) = G_OR [[AND1]], [[ZEXT]]
+    ; CHECK: [[C7:%[0-9]+]]:_(s32) = G_CONSTANT i32 512
+    ; CHECK: [[ICMP1:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[OR1]](s32), [[C6]]
+    ; CHECK: [[SELECT:%[0-9]+]]:_(s32) = G_SELECT [[ICMP1]](s1), [[C7]], [[C6]]
+    ; CHECK: [[C8:%[0-9]+]]:_(s32) = G_CONSTANT i32 31744
+    ; CHECK: [[OR2:%[0-9]+]]:_(s32) = G_OR [[SELECT]], [[C8]]
+    ; CHECK: [[C9:%[0-9]+]]:_(s32) = G_CONSTANT i32 12
+    ; CHECK: [[SHL:%[0-9]+]]:_(s32) = G_SHL [[AND]], [[C9]](s32)
+    ; CHECK: [[OR3:%[0-9]+]]:_(s32) = G_OR [[OR1]], [[SHL]]
+    ; CHECK: [[C10:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
+    ; CHECK: [[SUB:%[0-9]+]]:_(s32) = G_SUB [[C10]], [[AND]]
+    ; CHECK: [[SMAX:%[0-9]+]]:_(s32) = G_SMAX [[SUB]], [[C6]]
+    ; CHECK: [[C11:%[0-9]+]]:_(s32) = G_CONSTANT i32 13
+    ; CHECK: [[SMIN:%[0-9]+]]:_(s32) = G_SMIN [[SMAX]], [[C11]]
+    ; CHECK: [[C12:%[0-9]+]]:_(s32) = G_CONSTANT i32 4096
+    ; CHECK: [[OR4:%[0-9]+]]:_(s32) = G_OR [[OR1]], [[C12]]
+    ; CHECK: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[OR4]], [[SMIN]](s32)
+    ; CHECK: [[SHL1:%[0-9]+]]:_(s32) = G_SHL [[LSHR2]], [[SMIN]](s32)
+    ; CHECK: [[ICMP2:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[SHL1]](s32), [[OR4]]
+    ; CHECK: [[ZEXT1:%[0-9]+]]:_(s32) = G_ZEXT [[ICMP2]](s1)
+    ; CHECK: [[OR5:%[0-9]+]]:_(s32) = G_OR [[LSHR2]], [[ZEXT1]]
+    ; CHECK: [[ICMP3:%[0-9]+]]:_(s1) = G_ICMP intpred(slt), [[AND]](s32), [[C10]]
+    ; CHECK: [[SELECT1:%[0-9]+]]:_(s32) = G_SELECT [[ICMP3]](s1), [[OR5]], [[OR3]]
+    ; CHECK: [[C13:%[0-9]+]]:_(s32) = G_CONSTANT i32 7
+    ; CHECK: [[AND3:%[0-9]+]]:_(s32) = G_AND [[SELECT1]], [[C13]]
+    ; CHECK: [[C14:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
+    ; CHECK: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[SELECT1]], [[C14]](s32)
+    ; CHECK: [[C15:%[0-9]+]]:_(s32) = G_CONSTANT i32 3
+    ; CHECK: [[ICMP4:%[0-9]+]]:_(s1) = G_ICMP intpred(eq), [[AND3]](s32), [[C15]]
+    ; CHECK: [[ZEXT2:%[0-9]+]]:_(s32) = G_ZEXT [[ICMP4]](s1)
+    ; CHECK: [[C16:%[0-9]+]]:_(s32) = G_CONSTANT i32 5
+    ; CHECK: [[ICMP5:%[0-9]+]]:_(s1) = G_ICMP intpred(sgt), [[AND3]](s32), [[C16]]
+    ; CHECK: [[ZEXT3:%[0-9]+]]:_(s32) = G_ZEXT [[ICMP5]](s1)
+    ; CHECK: [[OR6:%[0-9]+]]:_(s32) = G_OR [[ZEXT2]], [[ZEXT3]]
+    ; CHECK: [[ADD1:%[0-9]+]]:_(s32) = G_ADD [[LSHR3]], [[OR6]]
+    ; CHECK: [[C17:%[0-9]+]]:_(s32) = G_CONSTANT i32 30
+    ; CHECK: [[ICMP6:%[0-9]+]]:_(s1) = G_ICMP intpred(sgt), [[AND]](s32), [[C17]]
+    ; CHECK: [[SELECT2:%[0-9]+]]:_(s32) = G_SELECT [[ICMP6]](s1), [[C8]], [[ADD1]]
+    ; CHECK: [[C18:%[0-9]+]]:_(s32) = G_CONSTANT i32 1039
+    ; CHECK: [[ICMP7:%[0-9]+]]:_(s1) = G_ICMP intpred(eq), [[AND]](s32), [[C18]]
+    ; CHECK: [[SELECT3:%[0-9]+]]:_(s32) = G_SELECT [[ICMP7]](s1), [[OR2]], [[SELECT2]]
+    ; CHECK: [[C19:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CHECK: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C19]](s32)
+    ; CHECK: [[C20:%[0-9]+]]:_(s32) = G_CONSTANT i32 32768
+    ; CHECK: [[AND4:%[0-9]+]]:_(s32) = G_AND [[LSHR4]], [[C20]]
+    ; CHECK: [[OR7:%[0-9]+]]:_(s32) = G_OR [[AND4]], [[SELECT3]]
+    ; CHECK: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[OR7]](s32)
+    ; CHECK: [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[UV1]](s64)
+    ; CHECK: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C]](s32)
+    ; CHECK: [[ADD2:%[0-9]+]]:_(s32) = G_ADD [[LSHR5]], [[C1]]
+    ; CHECK: [[AND5:%[0-9]+]]:_(s32) = G_AND [[ADD2]], [[C2]]
+    ; CHECK: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C3]](s32)
+    ; CHECK: [[AND6:%[0-9]+]]:_(s32) = G_AND [[LSHR6]], [[C4]]
+    ; CHECK: [[AND7:%[0-9]+]]:_(s32) = G_AND [[UV5]], [[C5]]
+    ; CHECK: [[OR8:%[0-9]+]]:_(s32) = G_OR [[AND7]], [[UV4]]
+    ; CHECK: [[ICMP8:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[OR8]](s32), [[C6]]
+    ; CHECK: [[ZEXT4:%[0-9]+]]:_(s32) = G_ZEXT [[ICMP8]](s1)
+    ; CHECK: [[OR9:%[0-9]+]]:_(s32) = G_OR [[AND6]], [[ZEXT4]]
+    ; CHECK: [[ICMP9:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[OR9]](s32), [[C6]]
+    ; CHECK: [[SELECT4:%[0-9]+]]:_(s32) = G_SELECT [[ICMP9]](s1), [[C7]], [[C6]]
+    ; CHECK: [[OR10:%[0-9]+]]:_(s32) = G_OR [[SELECT4]], [[C8]]
+    ; CHECK: [[SHL2:%[0-9]+]]:_(s32) = G_SHL [[AND5]], [[C9]](s32)
+    ; CHECK: [[OR11:%[0-9]+]]:_(s32) = G_OR [[OR9]], [[SHL2]]
+    ; CHECK: [[SUB1:%[0-9]+]]:_(s32) = G_SUB [[C10]], [[AND5]]
+    ; CHECK: [[SMAX1:%[0-9]+]]:_(s32) = G_SMAX [[SUB1]], [[C6]]
+    ; CHECK: [[SMIN1:%[0-9]+]]:_(s32) = G_SMIN [[SMAX1]], [[C11]]
+    ; CHECK: [[OR12:%[0-9]+]]:_(s32) = G_OR [[OR9]], [[C12]]
+    ; CHECK: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[OR12]], [[SMIN1]](s32)
+    ; CHECK: [[SHL3:%[0-9]+]]:_(s32) = G_SHL [[LSHR7]], [[SMIN1]](s32)
+    ; CHECK: [[ICMP10:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[SHL3]](s32), [[OR12]]
+    ; CHECK: [[ZEXT5:%[0-9]+]]:_(s32) = G_ZEXT [[ICMP10]](s1)
+    ; CHECK: [[OR13:%[0-9]+]]:_(s32) = G_OR [[LSHR7]], [[ZEXT5]]
+    ; CHECK: [[ICMP11:%[0-9]+]]:_(s1) = G_ICMP intpred(slt), [[AND5]](s32), [[C10]]
+    ; CHECK: [[SELECT5:%[0-9]+]]:_(s32) = G_SELECT [[ICMP11]](s1), [[OR13]], [[OR11]]
+    ; CHECK: [[AND8:%[0-9]+]]:_(s32) = G_AND [[SELECT5]], [[C13]]
+    ; CHECK: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[SELECT5]], [[C14]](s32)
+    ; CHECK: [[ICMP12:%[0-9]+]]:_(s1) = G_ICMP intpred(eq), [[AND8]](s32), [[C15]]
+    ; CHECK: [[ZEXT6:%[0-9]+]]:_(s32) = G_ZEXT [[ICMP12]](s1)
+    ; CHECK: [[ICMP13:%[0-9]+]]:_(s1) = G_ICMP intpred(sgt), [[AND8]](s32), [[C16]]
+    ; CHECK: [[ZEXT7:%[0-9]+]]:_(s32) = G_ZEXT [[ICMP13]](s1)
+    ; CHECK: [[OR14:%[0-9]+]]:_(s32) = G_OR [[ZEXT6]], [[ZEXT7]]
+    ; CHECK: [[ADD3:%[0-9]+]]:_(s32) = G_ADD [[LSHR8]], [[OR14]]
+    ; CHECK: [[ICMP14:%[0-9]+]]:_(s1) = G_ICMP intpred(sgt), [[AND5]](s32), [[C17]]
+    ; CHECK: [[SELECT6:%[0-9]+]]:_(s32) = G_SELECT [[ICMP14]](s1), [[C8]], [[ADD3]]
+    ; CHECK: [[ICMP15:%[0-9]+]]:_(s1) = G_ICMP intpred(eq), [[AND5]](s32), [[C18]]
+    ; CHECK: [[SELECT7:%[0-9]+]]:_(s32) = G_SELECT [[ICMP15]](s1), [[OR10]], [[SELECT6]]
+    ; CHECK: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C19]](s32)
+    ; CHECK: [[AND9:%[0-9]+]]:_(s32) = G_AND [[LSHR9]], [[C20]]
+    ; CHECK: [[OR15:%[0-9]+]]:_(s32) = G_OR [[AND9]], [[SELECT7]]
+    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[OR15]](s32)
+    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR [[TRUNC]](s16), [[TRUNC1]](s16)
+    ; CHECK: $vgpr0 = COPY [[BUILD_VECTOR]](<2 x s16>)
+    %0:_(<2 x s64>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
+    %1:_(<2 x s16>) = G_FPTRUNC %0
+    $vgpr0 = COPY %1
+...
+
+---
+name: test_fptrunc_s64_to_s16_afn
+body: |
+  bb.0:
+    liveins: $vgpr0_vgpr1
+
+    ; CHECK-LABEL: name: test_fptrunc_s64_to_s16_afn
+    ; CHECK: [[COPY:%[0-9]+]]:_(s64) = COPY $vgpr0_vgpr1
+    ; CHECK: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](s64)
+    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 20
+    ; CHECK: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C]](s32)
+    ; CHECK: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 -1008
+    ; CHECK: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[LSHR]], [[C1]]
+    ; CHECK: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 2047
+    ; CHECK: [[AND:%[0-9]+]]:_(s32) = G_AND [[ADD]], [[C2]]
+    ; CHECK: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; CHECK: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C3]](s32)
+    ; CHECK: [[C4:%[0-9]+]]:_(s32) = G_CONSTANT i32 4094
+    ; CHECK: [[AND1:%[0-9]+]]:_(s32) = G_AND [[LSHR1]], [[C4]]
+    ; CHECK: [[C5:%[0-9]+]]:_(s32) = G_CONSTANT i32 511
+    ; CHECK: [[AND2:%[0-9]+]]:_(s32) = G_AND [[UV1]], [[C5]]
+    ; CHECK: [[OR:%[0-9]+]]:_(s32) = G_OR [[AND2]], [[UV]]
+    ; CHECK: [[C6:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
+    ; CHECK: [[ICMP:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[OR]](s32), [[C6]]
+    ; CHECK: [[ZEXT:%[0-9]+]]:_(s32) = G_ZEXT [[ICMP]](s1)
+    ; CHECK: [[OR1:%[0-9]+]]:_(s32) = G_OR [[AND1]], [[ZEXT]]
+    ; CHECK: [[C7:%[0-9]+]]:_(s32) = G_CONSTANT i32 512
+    ; CHECK: [[ICMP1:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[OR1]](s32), [[C6]]
+    ; CHECK: [[SELECT:%[0-9]+]]:_(s32) = G_SELECT [[ICMP1]](s1), [[C7]], [[C6]]
+    ; CHECK: [[C8:%[0-9]+]]:_(s32) = G_CONSTANT i32 31744
+    ; CHECK: [[OR2:%[0-9]+]]:_(s32) = G_OR [[SELECT]], [[C8]]
+    ; CHECK: [[C9:%[0-9]+]]:_(s32) = G_CONSTANT i32 12
+    ; CHECK: [[SHL:%[0-9]+]]:_(s32) = G_SHL [[AND]], [[C9]](s32)
+    ; CHECK: [[OR3:%[0-9]+]]:_(s32) = G_OR [[OR1]], [[SHL]]
+    ; CHECK: [[C10:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
+    ; CHECK: [[SUB:%[0-9]+]]:_(s32) = G_SUB [[C10]], [[AND]]
+    ; CHECK: [[SMAX:%[0-9]+]]:_(s32) = G_SMAX [[SUB]], [[C6]]
+    ; CHECK: [[C11:%[0-9]+]]:_(s32) = G_CONSTANT i32 13
+    ; CHECK: [[SMIN:%[0-9]+]]:_(s32) = G_SMIN [[SMAX]], [[C11]]
+    ; CHECK: [[C12:%[0-9]+]]:_(s32) = G_CONSTANT i32 4096
+    ; CHECK: [[OR4:%[0-9]+]]:_(s32) = G_OR [[OR1]], [[C12]]
+    ; CHECK: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[OR4]], [[SMIN]](s32)
+    ; CHECK: [[SHL1:%[0-9]+]]:_(s32) = G_SHL [[LSHR2]], [[SMIN]](s32)
+    ; CHECK: [[ICMP2:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[SHL1]](s32), [[OR4]]
+    ; CHECK: [[ZEXT1:%[0-9]+]]:_(s32) = G_ZEXT [[ICMP2]](s1)
+    ; CHECK: [[OR5:%[0-9]+]]:_(s32) = G_OR [[LSHR2]], [[ZEXT1]]
+    ; CHECK: [[ICMP3:%[0-9]+]]:_(s1) = G_ICMP intpred(slt), [[AND]](s32), [[C10]]
+    ; CHECK: [[SELECT1:%[0-9]+]]:_(s32) = G_SELECT [[ICMP3]](s1), [[OR5]], [[OR3]]
+    ; CHECK: [[C13:%[0-9]+]]:_(s32) = G_CONSTANT i32 7
+    ; CHECK: [[AND3:%[0-9]+]]:_(s32) = G_AND [[SELECT1]], [[C13]]
+    ; CHECK: [[C14:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
+    ; CHECK: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[SELECT1]], [[C14]](s32)
+    ; CHECK: [[C15:%[0-9]+]]:_(s32) = G_CONSTANT i32 3
+    ; CHECK: [[ICMP4:%[0-9]+]]:_(s1) = G_ICMP intpred(eq), [[AND3]](s32), [[C15]]
+    ; CHECK: [[ZEXT2:%[0-9]+]]:_(s32) = G_ZEXT [[ICMP4]](s1)
+    ; CHECK: [[C16:%[0-9]+]]:_(s32) = G_CONSTANT i32 5
+    ; CHECK: [[ICMP5:%[0-9]+]]:_(s1) = G_ICMP intpred(sgt), [[AND3]](s32), [[C16]]
+    ; CHECK: [[ZEXT3:%[0-9]+]]:_(s32) = G_ZEXT [[ICMP5]](s1)
+    ; CHECK: [[OR6:%[0-9]+]]:_(s32) = G_OR [[ZEXT2]], [[ZEXT3]]
+    ; CHECK: [[ADD1:%[0-9]+]]:_(s32) = G_ADD [[LSHR3]], [[OR6]]
+    ; CHECK: [[C17:%[0-9]+]]:_(s32) = G_CONSTANT i32 30
+    ; CHECK: [[ICMP6:%[0-9]+]]:_(s1) = G_ICMP intpred(sgt), [[AND]](s32), [[C17]]
+    ; CHECK: [[SELECT2:%[0-9]+]]:_(s32) = G_SELECT [[ICMP6]](s1), [[C8]], [[ADD1]]
+    ; CHECK: [[C18:%[0-9]+]]:_(s32) = G_CONSTANT i32 1039
+    ; CHECK: [[ICMP7:%[0-9]+]]:_(s1) = G_ICMP intpred(eq), [[AND]](s32), [[C18]]
+    ; CHECK: [[SELECT3:%[0-9]+]]:_(s32) = G_SELECT [[ICMP7]](s1), [[OR2]], [[SELECT2]]
+    ; CHECK: [[C19:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CHECK: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV1]], [[C19]](s32)
+    ; CHECK: [[C20:%[0-9]+]]:_(s32) = G_CONSTANT i32 32768
+    ; CHECK: [[AND4:%[0-9]+]]:_(s32) = G_AND [[LSHR4]], [[C20]]
+    ; CHECK: [[OR7:%[0-9]+]]:_(s32) = G_OR [[AND4]], [[SELECT3]]
+    ; CHECK: [[COPY1:%[0-9]+]]:_(s32) = COPY [[OR7]](s32)
+    ; CHECK: $vgpr0 = COPY [[COPY1]](s32)
+    %0:_(s64) = COPY $vgpr0_vgpr1
+    %1:_(s16) = G_FPTRUNC %0
+    %2:_(s32) = afn G_ANYEXT %1
+    $vgpr0 = COPY %2
+...
+
+---
+name: test_fptrunc_v2s64_to_v2s16_afn
+body: |
+  bb.0:
+    liveins: $vgpr0_vgpr1_vgpr2_vgpr3
+
+    ; CHECK-LABEL: name: test_fptrunc_v2s64_to_v2s16_afn
+    ; CHECK: [[COPY:%[0-9]+]]:_(<2 x s64>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
+    ; CHECK: [[UV:%[0-9]+]]:_(s64), [[UV1:%[0-9]+]]:_(s64) = G_UNMERGE_VALUES [[COPY]](<2 x s64>)
+    ; CHECK: [[UV2:%[0-9]+]]:_(s32), [[UV3:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[UV]](s64)
+    ; CHECK: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 20
+    ; CHECK: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C]](s32)
+    ; CHECK: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 -1008
+    ; CHECK: [[ADD:%[0-9]+]]:_(s32) = G_ADD [[LSHR]], [[C1]]
+    ; CHECK: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 2047
+    ; CHECK: [[AND:%[0-9]+]]:_(s32) = G_AND [[ADD]], [[C2]]
+    ; CHECK: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 8
+    ; CHECK: [[LSHR1:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C3]](s32)
+    ; CHECK: [[C4:%[0-9]+]]:_(s32) = G_CONSTANT i32 4094
+    ; CHECK: [[AND1:%[0-9]+]]:_(s32) = G_AND [[LSHR1]], [[C4]]
+    ; CHECK: [[C5:%[0-9]+]]:_(s32) = G_CONSTANT i32 511
+    ; CHECK: [[AND2:%[0-9]+]]:_(s32) = G_AND [[UV3]], [[C5]]
+    ; CHECK: [[OR:%[0-9]+]]:_(s32) = G_OR [[AND2]], [[UV2]]
+    ; CHECK: [[C6:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
+    ; CHECK: [[ICMP:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[OR]](s32), [[C6]]
+    ; CHECK: [[ZEXT:%[0-9]+]]:_(s32) = G_ZEXT [[ICMP]](s1)
+    ; CHECK: [[OR1:%[0-9]+]]:_(s32) = G_OR [[AND1]], [[ZEXT]]
+    ; CHECK: [[C7:%[0-9]+]]:_(s32) = G_CONSTANT i32 512
+    ; CHECK: [[ICMP1:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[OR1]](s32), [[C6]]
+    ; CHECK: [[SELECT:%[0-9]+]]:_(s32) = G_SELECT [[ICMP1]](s1), [[C7]], [[C6]]
+    ; CHECK: [[C8:%[0-9]+]]:_(s32) = G_CONSTANT i32 31744
+    ; CHECK: [[OR2:%[0-9]+]]:_(s32) = G_OR [[SELECT]], [[C8]]
+    ; CHECK: [[C9:%[0-9]+]]:_(s32) = G_CONSTANT i32 12
+    ; CHECK: [[SHL:%[0-9]+]]:_(s32) = G_SHL [[AND]], [[C9]](s32)
+    ; CHECK: [[OR3:%[0-9]+]]:_(s32) = G_OR [[OR1]], [[SHL]]
+    ; CHECK: [[C10:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
+    ; CHECK: [[SUB:%[0-9]+]]:_(s32) = G_SUB [[C10]], [[AND]]
+    ; CHECK: [[SMAX:%[0-9]+]]:_(s32) = G_SMAX [[SUB]], [[C6]]
+    ; CHECK: [[C11:%[0-9]+]]:_(s32) = G_CONSTANT i32 13
+    ; CHECK: [[SMIN:%[0-9]+]]:_(s32) = G_SMIN [[SMAX]], [[C11]]
+    ; CHECK: [[C12:%[0-9]+]]:_(s32) = G_CONSTANT i32 4096
+    ; CHECK: [[OR4:%[0-9]+]]:_(s32) = G_OR [[OR1]], [[C12]]
+    ; CHECK: [[LSHR2:%[0-9]+]]:_(s32) = G_LSHR [[OR4]], [[SMIN]](s32)
+    ; CHECK: [[SHL1:%[0-9]+]]:_(s32) = G_SHL [[LSHR2]], [[SMIN]](s32)
+    ; CHECK: [[ICMP2:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[SHL1]](s32), [[OR4]]
+    ; CHECK: [[ZEXT1:%[0-9]+]]:_(s32) = G_ZEXT [[ICMP2]](s1)
+    ; CHECK: [[OR5:%[0-9]+]]:_(s32) = G_OR [[LSHR2]], [[ZEXT1]]
+    ; CHECK: [[ICMP3:%[0-9]+]]:_(s1) = G_ICMP intpred(slt), [[AND]](s32), [[C10]]
+    ; CHECK: [[SELECT1:%[0-9]+]]:_(s32) = G_SELECT [[ICMP3]](s1), [[OR5]], [[OR3]]
+    ; CHECK: [[C13:%[0-9]+]]:_(s32) = G_CONSTANT i32 7
+    ; CHECK: [[AND3:%[0-9]+]]:_(s32) = G_AND [[SELECT1]], [[C13]]
+    ; CHECK: [[C14:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
+    ; CHECK: [[LSHR3:%[0-9]+]]:_(s32) = G_LSHR [[SELECT1]], [[C14]](s32)
+    ; CHECK: [[C15:%[0-9]+]]:_(s32) = G_CONSTANT i32 3
+    ; CHECK: [[ICMP4:%[0-9]+]]:_(s1) = G_ICMP intpred(eq), [[AND3]](s32), [[C15]]
+    ; CHECK: [[ZEXT2:%[0-9]+]]:_(s32) = G_ZEXT [[ICMP4]](s1)
+    ; CHECK: [[C16:%[0-9]+]]:_(s32) = G_CONSTANT i32 5
+    ; CHECK: [[ICMP5:%[0-9]+]]:_(s1) = G_ICMP intpred(sgt), [[AND3]](s32), [[C16]]
+    ; CHECK: [[ZEXT3:%[0-9]+]]:_(s32) = G_ZEXT [[ICMP5]](s1)
+    ; CHECK: [[OR6:%[0-9]+]]:_(s32) = G_OR [[ZEXT2]], [[ZEXT3]]
+    ; CHECK: [[ADD1:%[0-9]+]]:_(s32) = G_ADD [[LSHR3]], [[OR6]]
+    ; CHECK: [[C17:%[0-9]+]]:_(s32) = G_CONSTANT i32 30
+    ; CHECK: [[ICMP6:%[0-9]+]]:_(s1) = G_ICMP intpred(sgt), [[AND]](s32), [[C17]]
+    ; CHECK: [[SELECT2:%[0-9]+]]:_(s32) = G_SELECT [[ICMP6]](s1), [[C8]], [[ADD1]]
+    ; CHECK: [[C18:%[0-9]+]]:_(s32) = G_CONSTANT i32 1039
+    ; CHECK: [[ICMP7:%[0-9]+]]:_(s1) = G_ICMP intpred(eq), [[AND]](s32), [[C18]]
+    ; CHECK: [[SELECT3:%[0-9]+]]:_(s32) = G_SELECT [[ICMP7]](s1), [[OR2]], [[SELECT2]]
+    ; CHECK: [[C19:%[0-9]+]]:_(s32) = G_CONSTANT i32 16
+    ; CHECK: [[LSHR4:%[0-9]+]]:_(s32) = G_LSHR [[UV3]], [[C19]](s32)
+    ; CHECK: [[C20:%[0-9]+]]:_(s32) = G_CONSTANT i32 32768
+    ; CHECK: [[AND4:%[0-9]+]]:_(s32) = G_AND [[LSHR4]], [[C20]]
+    ; CHECK: [[OR7:%[0-9]+]]:_(s32) = G_OR [[AND4]], [[SELECT3]]
+    ; CHECK: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[OR7]](s32)
+    ; CHECK: [[UV4:%[0-9]+]]:_(s32), [[UV5:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[UV1]](s64)
+    ; CHECK: [[LSHR5:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C]](s32)
+    ; CHECK: [[ADD2:%[0-9]+]]:_(s32) = G_ADD [[LSHR5]], [[C1]]
+    ; CHECK: [[AND5:%[0-9]+]]:_(s32) = G_AND [[ADD2]], [[C2]]
+    ; CHECK: [[LSHR6:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C3]](s32)
+    ; CHECK: [[AND6:%[0-9]+]]:_(s32) = G_AND [[LSHR6]], [[C4]]
+    ; CHECK: [[AND7:%[0-9]+]]:_(s32) = G_AND [[UV5]], [[C5]]
+    ; CHECK: [[OR8:%[0-9]+]]:_(s32) = G_OR [[AND7]], [[UV4]]
+    ; CHECK: [[ICMP8:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[OR8]](s32), [[C6]]
+    ; CHECK: [[ZEXT4:%[0-9]+]]:_(s32) = G_ZEXT [[ICMP8]](s1)
+    ; CHECK: [[OR9:%[0-9]+]]:_(s32) = G_OR [[AND6]], [[ZEXT4]]
+    ; CHECK: [[ICMP9:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[OR9]](s32), [[C6]]
+    ; CHECK: [[SELECT4:%[0-9]+]]:_(s32) = G_SELECT [[ICMP9]](s1), [[C7]], [[C6]]
+    ; CHECK: [[OR10:%[0-9]+]]:_(s32) = G_OR [[SELECT4]], [[C8]]
+    ; CHECK: [[SHL2:%[0-9]+]]:_(s32) = G_SHL [[AND5]], [[C9]](s32)
+    ; CHECK: [[OR11:%[0-9]+]]:_(s32) = G_OR [[OR9]], [[SHL2]]
+    ; CHECK: [[SUB1:%[0-9]+]]:_(s32) = G_SUB [[C10]], [[AND5]]
+    ; CHECK: [[SMAX1:%[0-9]+]]:_(s32) = G_SMAX [[SUB1]], [[C6]]
+    ; CHECK: [[SMIN1:%[0-9]+]]:_(s32) = G_SMIN [[SMAX1]], [[C11]]
+    ; CHECK: [[OR12:%[0-9]+]]:_(s32) = G_OR [[OR9]], [[C12]]
+    ; CHECK: [[LSHR7:%[0-9]+]]:_(s32) = G_LSHR [[OR12]], [[SMIN1]](s32)
+    ; CHECK: [[SHL3:%[0-9]+]]:_(s32) = G_SHL [[LSHR7]], [[SMIN1]](s32)
+    ; CHECK: [[ICMP10:%[0-9]+]]:_(s1) = G_ICMP intpred(ne), [[SHL3]](s32), [[OR12]]
+    ; CHECK: [[ZEXT5:%[0-9]+]]:_(s32) = G_ZEXT [[ICMP10]](s1)
+    ; CHECK: [[OR13:%[0-9]+]]:_(s32) = G_OR [[LSHR7]], [[ZEXT5]]
+    ; CHECK: [[ICMP11:%[0-9]+]]:_(s1) = G_ICMP intpred(slt), [[AND5]](s32), [[C10]]
+    ; CHECK: [[SELECT5:%[0-9]+]]:_(s32) = G_SELECT [[ICMP11]](s1), [[OR13]], [[OR11]]
+    ; CHECK: [[AND8:%[0-9]+]]:_(s32) = G_AND [[SELECT5]], [[C13]]
+    ; CHECK: [[LSHR8:%[0-9]+]]:_(s32) = G_LSHR [[SELECT5]], [[C14]](s32)
+    ; CHECK: [[ICMP12:%[0-9]+]]:_(s1) = G_ICMP intpred(eq), [[AND8]](s32), [[C15]]
+    ; CHECK: [[ZEXT6:%[0-9]+]]:_(s32) = G_ZEXT [[ICMP12]](s1)
+    ; CHECK: [[ICMP13:%[0-9]+]]:_(s1) = G_ICMP intpred(sgt), [[AND8]](s32), [[C16]]
+    ; CHECK: [[ZEXT7:%[0-9]+]]:_(s32) = G_ZEXT [[ICMP13]](s1)
+    ; CHECK: [[OR14:%[0-9]+]]:_(s32) = G_OR [[ZEXT6]], [[ZEXT7]]
+    ; CHECK: [[ADD3:%[0-9]+]]:_(s32) = G_ADD [[LSHR8]], [[OR14]]
+    ; CHECK: [[ICMP14:%[0-9]+]]:_(s1) = G_ICMP intpred(sgt), [[AND5]](s32), [[C17]]
+    ; CHECK: [[SELECT6:%[0-9]+]]:_(s32) = G_SELECT [[ICMP14]](s1), [[C8]], [[ADD3]]
+    ; CHECK: [[ICMP15:%[0-9]+]]:_(s1) = G_ICMP intpred(eq), [[AND5]](s32), [[C18]]
+    ; CHECK: [[SELECT7:%[0-9]+]]:_(s32) = G_SELECT [[ICMP15]](s1), [[OR10]], [[SELECT6]]
+    ; CHECK: [[LSHR9:%[0-9]+]]:_(s32) = G_LSHR [[UV5]], [[C19]](s32)
+    ; CHECK: [[AND9:%[0-9]+]]:_(s32) = G_AND [[LSHR9]], [[C20]]
+    ; CHECK: [[OR15:%[0-9]+]]:_(s32) = G_OR [[AND9]], [[SELECT7]]
+    ; CHECK: [[TRUNC1:%[0-9]+]]:_(s16) = G_TRUNC [[OR15]](s32)
+    ; CHECK: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR [[TRUNC]](s16), [[TRUNC1]](s16)
+    ; CHECK: $vgpr0 = COPY [[BUILD_VECTOR]](<2 x s16>)
+    %0:_(<2 x s64>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
+    %1:_(<2 x s16>) = afn G_FPTRUNC %0
+    $vgpr0 = COPY %1
+...