Index: include/llvm/Support/TargetOpcodes.def
===================================================================
--- include/llvm/Support/TargetOpcodes.def
+++ include/llvm/Support/TargetOpcodes.def
@@ -480,6 +480,9 @@
 /// Generic FP absolute value.
 HANDLE_TARGET_OPCODE(G_FABS)
 
+/// Generic FP canonicalize value.
+HANDLE_TARGET_OPCODE(G_FCANONICALIZE)
+
 /// Generic pointer offset
 HANDLE_TARGET_OPCODE(G_GEP)
 
Index: include/llvm/Target/GenericOpcodes.td
===================================================================
--- include/llvm/Target/GenericOpcodes.td
+++ include/llvm/Target/GenericOpcodes.td
@@ -455,6 +455,12 @@
   let hasSideEffects = 0;
 }
 
+def G_FCANONICALIZE : GenericInstruction {
+  let OutOperandList = (outs type0:$dst);
+  let InOperandList = (ins type0:$src);
+  let hasSideEffects = 0;
+}
+
 //------------------------------------------------------------------------------
 // Floating Point Binary ops.
 //------------------------------------------------------------------------------
Index: lib/CodeGen/GlobalISel/IRTranslator.cpp
===================================================================
--- lib/CodeGen/GlobalISel/IRTranslator.cpp
+++ lib/CodeGen/GlobalISel/IRTranslator.cpp
@@ -806,6 +806,8 @@
       return TargetOpcode::G_FEXP2;
     case Intrinsic::fabs:
       return TargetOpcode::G_FABS;
+    case Intrinsic::canonicalize:
+      return TargetOpcode::G_FCANONICALIZE;
     case Intrinsic::log:
       return TargetOpcode::G_FLOG;
     case Intrinsic::log2:
Index: lib/CodeGen/GlobalISel/LegalizerHelper.cpp
===================================================================
--- lib/CodeGen/GlobalISel/LegalizerHelper.cpp
+++ lib/CodeGen/GlobalISel/LegalizerHelper.cpp
@@ -1361,6 +1361,7 @@
   case TargetOpcode::G_FMA:
   case TargetOpcode::G_FNEG:
   case TargetOpcode::G_FABS:
+  case TargetOpcode::G_FCANONICALIZE:
   case TargetOpcode::G_FDIV:
   case TargetOpcode::G_FREM:
   case TargetOpcode::G_FCEIL:
@@ -2142,6 +2143,7 @@
   case G_FSUB:
   case G_FNEG:
   case G_FABS:
+  case G_FCANONICALIZE:
   case G_FDIV:
   case G_FREM:
   case G_FMA:
Index: lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
===================================================================
--- lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
+++ lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
@@ -155,7 +155,7 @@
   setAction({G_FRAME_INDEX, PrivatePtr}, Legal);
 
   auto &FPOpActions = getActionDefinitionsBuilder(
-    { G_FADD, G_FMUL, G_FNEG, G_FABS, G_FMA})
+    { G_FADD, G_FMUL, G_FNEG, G_FABS, G_FMA, G_FCANONICALIZE})
     .legalFor({S32, S64});
 
   if (ST.has16BitInsts()) {
Index: test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll
===================================================================
--- test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll
+++ test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll
@@ -1427,6 +1427,16 @@
   ret float %res
 }
 
+declare float @llvm.canonicalize.f32(float)
+define float @test_fcanonicalize_intrin(float %a) {
+; CHECK-LABEL: name: test_fcanonicalize_intrin
+; CHECK: [[A:%[0-9]+]]:_(s32) = COPY $s0
+; CHECK: [[RES:%[0-9]+]]:_(s32) = nnan ninf nsz arcp contract afn reassoc G_FCANONICALIZE [[A]]
+; CHECK: $s0 = COPY [[RES]]
+  %res = call nnan ninf nsz arcp contract afn reassoc float @llvm.canonicalize.f32(float %a)
+  ret float %res
+}
+
 declare float @llvm.trunc.f32(float)
 define float @test_intrinsic_trunc(float %a) {
 ; CHECK-LABEL: name: test_intrinsic_trunc
Index: test/CodeGen/AArch64/GlobalISel/legalizer-info-validation.mir
===================================================================
--- test/CodeGen/AArch64/GlobalISel/legalizer-info-validation.mir
+++ test/CodeGen/AArch64/GlobalISel/legalizer-info-validation.mir
@@ -294,6 +294,9 @@
 # DEBUG-NEXT: G_FABS (opcode {{[0-9]+}}): 1 type index
 # DEBUG:      .. type index coverage check SKIPPED: user-defined predicate detected
 #
+# DEBUG-NEXT: G_FCANONICALIZE (opcode 127): 1 type index
+# DEBUG: .. type index coverage check SKIPPED: no rules defined
+#
 # DEBUG-NEXT: G_GEP (opcode {{[0-9]+}}): 2 type indices
 # DEBUG:      .. the first uncovered type index: 2, OK
 #
Index: test/CodeGen/AMDGPU/GlobalISel/legalize-fcanonicalize.mir
===================================================================
--- /dev/null
+++ test/CodeGen/AMDGPU/GlobalISel/legalize-fcanonicalize.mir
@@ -0,0 +1,286 @@
+# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
+# RUN: llc -mtriple=amdgcn-mesa-mesa3d -mcpu=tahiti -run-pass=legalizer %s -o - | FileCheck -check-prefix=SI  %s
+# RUN: llc -mtriple=amdgcn-mesa-mesa3d -mcpu=fiji -run-pass=legalizer %s -o - | FileCheck -check-prefix=VI %s
+# RUN: llc -mtriple=amdgcn-mesa-mesa3d -mcpu=gfx900 -run-pass=legalizer %s -o - | FileCheck -check-prefix=GFX9  %s
+
+
+---
+name: test_fcanonicalize_s32
+body: |
+  bb.0:
+    liveins: $vgpr0
+
+    ; SI-LABEL: name: test_fcanonicalize_s32
+    ; SI: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; VI-LABEL: name: test_fcanonicalize_s32
+    ; VI: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX9-LABEL: name: test_fcanonicalize_s32
+    ; GFX9: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    %0:_(s32) = COPY $vgpr0
+    %1:_(s32) = G_FCANONICALIZE %0
+...
+---
+name: test_fcanonicalize_s64
+body: |
+  bb.0:
+    liveins: $vgpr0
+
+    ; SI-LABEL: name: test_fcanonicalize_s64
+    ; SI: [[COPY:%[0-9]+]]:_(s64) = COPY $vgpr0_vgpr1
+    ; VI-LABEL: name: test_fcanonicalize_s64
+    ; VI: [[COPY:%[0-9]+]]:_(s64) = COPY $vgpr0_vgpr1
+    ; GFX9-LABEL: name: test_fcanonicalize_s64
+    ; GFX9: [[COPY:%[0-9]+]]:_(s64) = COPY $vgpr0_vgpr1
+    %0:_(s64) = COPY $vgpr0_vgpr1
+    %1:_(s64) = G_FCANONICALIZE %0
+...
+---
+name: test_fcanonicalize_s16
+body: |
+  bb.0:
+    liveins: $vgpr0
+
+    ; SI-LABEL: name: test_fcanonicalize_s16
+    ; SI: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; SI: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[COPY]](s32)
+    ; SI: [[FPEXT:%[0-9]+]]:_(s32) = G_FPEXT [[TRUNC]](s16)
+    ; SI: [[FCANONICALIZE:%[0-9]+]]:_(s32) = G_FCANONICALIZE [[FPEXT]]
+    ; SI: [[FPTRUNC:%[0-9]+]]:_(s16) = G_FPTRUNC [[FCANONICALIZE]](s32)
+    ; SI: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[FPTRUNC]](s16)
+    ; SI: $vgpr0 = COPY [[ANYEXT]](s32)
+    ; VI-LABEL: name: test_fcanonicalize_s16
+    ; VI: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; VI: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[COPY]](s32)
+    ; VI: [[FCANONICALIZE:%[0-9]+]]:_(s16) = G_FCANONICALIZE [[TRUNC]]
+    ; VI: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[FCANONICALIZE]](s16)
+    ; VI: $vgpr0 = COPY [[ANYEXT]](s32)
+    ; GFX9-LABEL: name: test_fcanonicalize_s16
+    ; GFX9: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
+    ; GFX9: [[TRUNC:%[0-9]+]]:_(s16) = G_TRUNC [[COPY]](s32)
+    ; GFX9: [[FCANONICALIZE:%[0-9]+]]:_(s16) = G_FCANONICALIZE [[TRUNC]]
+    ; GFX9: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[FCANONICALIZE]](s16)
+    ; GFX9: $vgpr0 = COPY [[ANYEXT]](s32)
+    %0:_(s32) = COPY $vgpr0
+    %1:_(s16) = G_TRUNC %0
+    %2:_(s16) = G_FCANONICALIZE %1
+    %3:_(s32) = G_ANYEXT %2
+    $vgpr0 = COPY %3
+...
+
+---
+name: test_fcanonicalize_v2s32
+body: |
+  bb.0:
+    liveins: $vgpr0_vgpr1
+
+    ; SI-LABEL: name: test_fcanonicalize_v2s32
+    ; SI: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
+    ; SI: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<2 x s32>)
+    ; SI: [[FCANONICALIZE:%[0-9]+]]:_(s32) = G_FCANONICALIZE [[UV]]
+    ; SI: [[FCANONICALIZE1:%[0-9]+]]:_(s32) = G_FCANONICALIZE [[UV1]]
+    ; SI: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[FCANONICALIZE]](s32), [[FCANONICALIZE1]](s32)
+    ; SI: $vgpr0_vgpr1 = COPY [[BUILD_VECTOR]](<2 x s32>)
+    ; VI-LABEL: name: test_fcanonicalize_v2s32
+    ; VI: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
+    ; VI: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<2 x s32>)
+    ; VI: [[FCANONICALIZE:%[0-9]+]]:_(s32) = G_FCANONICALIZE [[UV]]
+    ; VI: [[FCANONICALIZE1:%[0-9]+]]:_(s32) = G_FCANONICALIZE [[UV1]]
+    ; VI: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[FCANONICALIZE]](s32), [[FCANONICALIZE1]](s32)
+    ; VI: $vgpr0_vgpr1 = COPY [[BUILD_VECTOR]](<2 x s32>)
+    ; GFX9-LABEL: name: test_fcanonicalize_v2s32
+    ; GFX9: [[COPY:%[0-9]+]]:_(<2 x s32>) = COPY $vgpr0_vgpr1
+    ; GFX9: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<2 x s32>)
+    ; GFX9: [[FCANONICALIZE:%[0-9]+]]:_(s32) = G_FCANONICALIZE [[UV]]
+    ; GFX9: [[FCANONICALIZE1:%[0-9]+]]:_(s32) = G_FCANONICALIZE [[UV1]]
+    ; GFX9: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[FCANONICALIZE]](s32), [[FCANONICALIZE1]](s32)
+    ; GFX9: $vgpr0_vgpr1 = COPY [[BUILD_VECTOR]](<2 x s32>)
+    %0:_(<2 x s32>) = COPY $vgpr0_vgpr1
+    %1:_(<2 x s32>) = G_FCANONICALIZE %0
+    $vgpr0_vgpr1 = COPY %1
+...
+
+---
+name: test_fcanonicalize_v3s32
+body: |
+  bb.0:
+    liveins: $vgpr0_vgpr1_vgpr2
+
+    ; SI-LABEL: name: test_fcanonicalize_v3s32
+    ; SI: [[COPY:%[0-9]+]]:_(<3 x s32>) = COPY $vgpr0_vgpr1_vgpr2
+    ; SI: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<3 x s32>)
+    ; SI: [[FCANONICALIZE:%[0-9]+]]:_(s32) = G_FCANONICALIZE [[UV]]
+    ; SI: [[FCANONICALIZE1:%[0-9]+]]:_(s32) = G_FCANONICALIZE [[UV1]]
+    ; SI: [[FCANONICALIZE2:%[0-9]+]]:_(s32) = G_FCANONICALIZE [[UV2]]
+    ; SI: [[BUILD_VECTOR:%[0-9]+]]:_(<3 x s32>) = G_BUILD_VECTOR [[FCANONICALIZE]](s32), [[FCANONICALIZE1]](s32), [[FCANONICALIZE2]](s32)
+    ; SI: $vgpr0_vgpr1_vgpr2 = COPY [[BUILD_VECTOR]](<3 x s32>)
+    ; VI-LABEL: name: test_fcanonicalize_v3s32
+    ; VI: [[COPY:%[0-9]+]]:_(<3 x s32>) = COPY $vgpr0_vgpr1_vgpr2
+    ; VI: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<3 x s32>)
+    ; VI: [[FCANONICALIZE:%[0-9]+]]:_(s32) = G_FCANONICALIZE [[UV]]
+    ; VI: [[FCANONICALIZE1:%[0-9]+]]:_(s32) = G_FCANONICALIZE [[UV1]]
+    ; VI: [[FCANONICALIZE2:%[0-9]+]]:_(s32) = G_FCANONICALIZE [[UV2]]
+    ; VI: [[BUILD_VECTOR:%[0-9]+]]:_(<3 x s32>) = G_BUILD_VECTOR [[FCANONICALIZE]](s32), [[FCANONICALIZE1]](s32), [[FCANONICALIZE2]](s32)
+    ; VI: $vgpr0_vgpr1_vgpr2 = COPY [[BUILD_VECTOR]](<3 x s32>)
+    ; GFX9-LABEL: name: test_fcanonicalize_v3s32
+    ; GFX9: [[COPY:%[0-9]+]]:_(<3 x s32>) = COPY $vgpr0_vgpr1_vgpr2
+    ; GFX9: [[UV:%[0-9]+]]:_(s32), [[UV1:%[0-9]+]]:_(s32), [[UV2:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY]](<3 x s32>)
+    ; GFX9: [[FCANONICALIZE:%[0-9]+]]:_(s32) = G_FCANONICALIZE [[UV]]
+    ; GFX9: [[FCANONICALIZE1:%[0-9]+]]:_(s32) = G_FCANONICALIZE [[UV1]]
+    ; GFX9: [[FCANONICALIZE2:%[0-9]+]]:_(s32) = G_FCANONICALIZE [[UV2]]
+    ; GFX9: [[BUILD_VECTOR:%[0-9]+]]:_(<3 x s32>) = G_BUILD_VECTOR [[FCANONICALIZE]](s32), [[FCANONICALIZE1]](s32), [[FCANONICALIZE2]](s32)
+    ; GFX9: $vgpr0_vgpr1_vgpr2 = COPY [[BUILD_VECTOR]](<3 x s32>)
+    %0:_(<3 x s32>) = COPY $vgpr0_vgpr1_vgpr2
+    %1:_(<3 x  s32>) = G_FCANONICALIZE %0
+    $vgpr0_vgpr1_vgpr2 = COPY %1
+...
+
+---
+name: test_fcanonicalize_v2s64
+body: |
+  bb.0:
+    liveins: $vgpr0_vgpr1_vgpr2_vgpr3
+
+    ; SI-LABEL: name: test_fcanonicalize_v2s64
+    ; SI: [[COPY:%[0-9]+]]:_(<2 x s64>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
+    ; SI: [[UV:%[0-9]+]]:_(s64), [[UV1:%[0-9]+]]:_(s64) = G_UNMERGE_VALUES [[COPY]](<2 x s64>)
+    ; SI: [[FCANONICALIZE:%[0-9]+]]:_(s64) = G_FCANONICALIZE [[UV]]
+    ; SI: [[FCANONICALIZE1:%[0-9]+]]:_(s64) = G_FCANONICALIZE [[UV1]]
+    ; SI: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s64>) = G_BUILD_VECTOR [[FCANONICALIZE]](s64), [[FCANONICALIZE1]](s64)
+    ; SI: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[BUILD_VECTOR]](<2 x s64>)
+    ; VI-LABEL: name: test_fcanonicalize_v2s64
+    ; VI: [[COPY:%[0-9]+]]:_(<2 x s64>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
+    ; VI: [[UV:%[0-9]+]]:_(s64), [[UV1:%[0-9]+]]:_(s64) = G_UNMERGE_VALUES [[COPY]](<2 x s64>)
+    ; VI: [[FCANONICALIZE:%[0-9]+]]:_(s64) = G_FCANONICALIZE [[UV]]
+    ; VI: [[FCANONICALIZE1:%[0-9]+]]:_(s64) = G_FCANONICALIZE [[UV1]]
+    ; VI: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s64>) = G_BUILD_VECTOR [[FCANONICALIZE]](s64), [[FCANONICALIZE1]](s64)
+    ; VI: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[BUILD_VECTOR]](<2 x s64>)
+    ; GFX9-LABEL: name: test_fcanonicalize_v2s64
+    ; GFX9: [[COPY:%[0-9]+]]:_(<2 x s64>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
+    ; GFX9: [[UV:%[0-9]+]]:_(s64), [[UV1:%[0-9]+]]:_(s64) = G_UNMERGE_VALUES [[COPY]](<2 x s64>)
+    ; GFX9: [[FCANONICALIZE:%[0-9]+]]:_(s64) = G_FCANONICALIZE [[UV]]
+    ; GFX9: [[FCANONICALIZE1:%[0-9]+]]:_(s64) = G_FCANONICALIZE [[UV1]]
+    ; GFX9: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s64>) = G_BUILD_VECTOR [[FCANONICALIZE]](s64), [[FCANONICALIZE1]](s64)
+    ; GFX9: $vgpr0_vgpr1_vgpr2_vgpr3 = COPY [[BUILD_VECTOR]](<2 x s64>)
+    %0:_(<2 x s64>) = COPY $vgpr0_vgpr1_vgpr2_vgpr3
+    %1:_(<2 x s64>) = G_FCANONICALIZE %0
+    $vgpr0_vgpr1_vgpr2_vgpr3 = COPY %1
+...
+
+---
+name: test_fcanonicalize_v2s16
+body: |
+  bb.0:
+    liveins: $vgpr0
+
+    ; SI-LABEL: name: test_fcanonicalize_v2s16
+    ; SI: [[COPY:%[0-9]+]]:_(<2 x s16>) = COPY $vgpr0
+    ; SI: [[UV:%[0-9]+]]:_(s16), [[UV1:%[0-9]+]]:_(s16) = G_UNMERGE_VALUES [[COPY]](<2 x s16>)
+    ; SI: [[FPEXT:%[0-9]+]]:_(s32) = G_FPEXT [[UV]](s16)
+    ; SI: [[FCANONICALIZE:%[0-9]+]]:_(s32) = G_FCANONICALIZE [[FPEXT]]
+    ; SI: [[FPTRUNC:%[0-9]+]]:_(s16) = G_FPTRUNC [[FCANONICALIZE]](s32)
+    ; SI: [[FPEXT1:%[0-9]+]]:_(s32) = G_FPEXT [[UV1]](s16)
+    ; SI: [[FCANONICALIZE1:%[0-9]+]]:_(s32) = G_FCANONICALIZE [[FPEXT1]]
+    ; SI: [[FPTRUNC1:%[0-9]+]]:_(s16) = G_FPTRUNC [[FCANONICALIZE1]](s32)
+    ; SI: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR [[FPTRUNC]](s16), [[FPTRUNC1]](s16)
+    ; SI: $vgpr0 = COPY [[BUILD_VECTOR]](<2 x s16>)
+    ; VI-LABEL: name: test_fcanonicalize_v2s16
+    ; VI: [[COPY:%[0-9]+]]:_(<2 x s16>) = COPY $vgpr0
+    ; VI: [[UV:%[0-9]+]]:_(s16), [[UV1:%[0-9]+]]:_(s16) = G_UNMERGE_VALUES [[COPY]](<2 x s16>)
+    ; VI: [[FCANONICALIZE:%[0-9]+]]:_(s16) = G_FCANONICALIZE [[UV]]
+    ; VI: [[FCANONICALIZE1:%[0-9]+]]:_(s16) = G_FCANONICALIZE [[UV1]]
+    ; VI: [[BUILD_VECTOR:%[0-9]+]]:_(<2 x s16>) = G_BUILD_VECTOR [[FCANONICALIZE]](s16), [[FCANONICALIZE1]](s16)
+    ; VI: $vgpr0 = COPY [[BUILD_VECTOR]](<2 x s16>)
+    ; GFX9-LABEL: name: test_fcanonicalize_v2s16
+    ; GFX9: [[COPY:%[0-9]+]]:_(<2 x s16>) = COPY $vgpr0
+    ; GFX9: [[FCANONICALIZE:%[0-9]+]]:_(<2 x s16>) = G_FCANONICALIZE [[COPY]]
+    ; GFX9: $vgpr0 = COPY [[FCANONICALIZE]](<2 x s16>)
+    %0:_(<2 x s16>) = COPY $vgpr0
+    %1:_(<2 x s16>) = G_FCANONICALIZE %0
+    $vgpr0 = COPY %1
+...
+
+---
+name: test_fcanonicalize_v3s16
+body: |
+  bb.0:
+
+    ; SI-LABEL: name: test_fcanonicalize_v3s16
+    ; SI: [[DEF:%[0-9]+]]:_(<3 x s16>) = G_IMPLICIT_DEF
+    ; SI: [[UV:%[0-9]+]]:_(s16), [[UV1:%[0-9]+]]:_(s16), [[UV2:%[0-9]+]]:_(s16) = G_UNMERGE_VALUES [[DEF]](<3 x s16>)
+    ; SI: [[FPEXT:%[0-9]+]]:_(s32) = G_FPEXT [[UV]](s16)
+    ; SI: [[FCANONICALIZE:%[0-9]+]]:_(s32) = G_FCANONICALIZE [[FPEXT]]
+    ; SI: [[FPTRUNC:%[0-9]+]]:_(s16) = G_FPTRUNC [[FCANONICALIZE]](s32)
+    ; SI: [[FPEXT1:%[0-9]+]]:_(s32) = G_FPEXT [[UV1]](s16)
+    ; SI: [[FCANONICALIZE1:%[0-9]+]]:_(s32) = G_FCANONICALIZE [[FPEXT1]]
+    ; SI: [[FPTRUNC1:%[0-9]+]]:_(s16) = G_FPTRUNC [[FCANONICALIZE1]](s32)
+    ; SI: [[FPEXT2:%[0-9]+]]:_(s32) = G_FPEXT [[UV2]](s16)
+    ; SI: [[FCANONICALIZE2:%[0-9]+]]:_(s32) = G_FCANONICALIZE [[FPEXT2]]
+    ; SI: [[FPTRUNC2:%[0-9]+]]:_(s16) = G_FPTRUNC [[FCANONICALIZE2]](s32)
+    ; SI: [[BUILD_VECTOR:%[0-9]+]]:_(<3 x s16>) = G_BUILD_VECTOR [[FPTRUNC]](s16), [[FPTRUNC1]](s16), [[FPTRUNC2]](s16)
+    ; SI: S_NOP 0, implicit [[BUILD_VECTOR]](<3 x s16>)
+    ; VI-LABEL: name: test_fcanonicalize_v3s16
+    ; VI: [[DEF:%[0-9]+]]:_(<3 x s16>) = G_IMPLICIT_DEF
+    ; VI: [[UV:%[0-9]+]]:_(s16), [[UV1:%[0-9]+]]:_(s16), [[UV2:%[0-9]+]]:_(s16) = G_UNMERGE_VALUES [[DEF]](<3 x s16>)
+    ; VI: [[FCANONICALIZE:%[0-9]+]]:_(s16) = G_FCANONICALIZE [[UV]]
+    ; VI: [[FCANONICALIZE1:%[0-9]+]]:_(s16) = G_FCANONICALIZE [[UV1]]
+    ; VI: [[FCANONICALIZE2:%[0-9]+]]:_(s16) = G_FCANONICALIZE [[UV2]]
+    ; VI: [[BUILD_VECTOR:%[0-9]+]]:_(<3 x s16>) = G_BUILD_VECTOR [[FCANONICALIZE]](s16), [[FCANONICALIZE1]](s16), [[FCANONICALIZE2]](s16)
+    ; VI: S_NOP 0, implicit [[BUILD_VECTOR]](<3 x s16>)
+    ; GFX9-LABEL: name: test_fcanonicalize_v3s16
+    ; GFX9: [[DEF:%[0-9]+]]:_(<3 x s16>) = G_IMPLICIT_DEF
+    ; GFX9: [[DEF1:%[0-9]+]]:_(<3 x s16>) = G_IMPLICIT_DEF
+    ; GFX9: [[EXTRACT:%[0-9]+]]:_(<2 x s16>) = G_EXTRACT [[DEF]](<3 x s16>), 0
+    ; GFX9: [[FCANONICALIZE:%[0-9]+]]:_(<2 x s16>) = G_FCANONICALIZE [[EXTRACT]]
+    ; GFX9: [[INSERT:%[0-9]+]]:_(<3 x s16>) = G_INSERT [[DEF1]], [[FCANONICALIZE]](<2 x s16>), 0
+    ; GFX9: [[EXTRACT1:%[0-9]+]]:_(s16) = G_EXTRACT [[DEF]](<3 x s16>), 32
+    ; GFX9: [[FCANONICALIZE1:%[0-9]+]]:_(s16) = G_FCANONICALIZE [[EXTRACT1]]
+    ; GFX9: [[INSERT1:%[0-9]+]]:_(<3 x s16>) = G_INSERT [[INSERT]], [[FCANONICALIZE1]](s16), 32
+    ; GFX9: S_NOP 0, implicit [[INSERT1]](<3 x s16>)
+    %0:_(<3 x s16>) = G_IMPLICIT_DEF
+    %1:_(<3 x s16>) = G_FCANONICALIZE %0
+    S_NOP 0, implicit %1
+...
+
+---
+name: test_fcanonicalize_v4s16
+body: |
+  bb.0:
+    liveins: $vgpr0_vgpr1
+
+    ; SI-LABEL: name: test_fcanonicalize_v4s16
+    ; SI: [[COPY:%[0-9]+]]:_(<4 x s16>) = COPY $vgpr0_vgpr1
+    ; SI: [[UV:%[0-9]+]]:_(s16), [[UV1:%[0-9]+]]:_(s16), [[UV2:%[0-9]+]]:_(s16), [[UV3:%[0-9]+]]:_(s16) = G_UNMERGE_VALUES [[COPY]](<4 x s16>)
+    ; SI: [[FPEXT:%[0-9]+]]:_(s32) = G_FPEXT [[UV]](s16)
+    ; SI: [[FCANONICALIZE:%[0-9]+]]:_(s32) = G_FCANONICALIZE [[FPEXT]]
+    ; SI: [[FPTRUNC:%[0-9]+]]:_(s16) = G_FPTRUNC [[FCANONICALIZE]](s32)
+    ; SI: [[FPEXT1:%[0-9]+]]:_(s32) = G_FPEXT [[UV1]](s16)
+    ; SI: [[FCANONICALIZE1:%[0-9]+]]:_(s32) = G_FCANONICALIZE [[FPEXT1]]
+    ; SI: [[FPTRUNC1:%[0-9]+]]:_(s16) = G_FPTRUNC [[FCANONICALIZE1]](s32)
+    ; SI: [[FPEXT2:%[0-9]+]]:_(s32) = G_FPEXT [[UV2]](s16)
+    ; SI: [[FCANONICALIZE2:%[0-9]+]]:_(s32) = G_FCANONICALIZE [[FPEXT2]]
+    ; SI: [[FPTRUNC2:%[0-9]+]]:_(s16) = G_FPTRUNC [[FCANONICALIZE2]](s32)
+    ; SI: [[FPEXT3:%[0-9]+]]:_(s32) = G_FPEXT [[UV3]](s16)
+    ; SI: [[FCANONICALIZE3:%[0-9]+]]:_(s32) = G_FCANONICALIZE [[FPEXT3]]
+    ; SI: [[FPTRUNC3:%[0-9]+]]:_(s16) = G_FPTRUNC [[FCANONICALIZE3]](s32)
+    ; SI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s16>) = G_BUILD_VECTOR [[FPTRUNC]](s16), [[FPTRUNC1]](s16), [[FPTRUNC2]](s16), [[FPTRUNC3]](s16)
+    ; SI: $vgpr0_vgpr1 = COPY [[BUILD_VECTOR]](<4 x s16>)
+    ; VI-LABEL: name: test_fcanonicalize_v4s16
+    ; VI: [[COPY:%[0-9]+]]:_(<4 x s16>) = COPY $vgpr0_vgpr1
+    ; VI: [[UV:%[0-9]+]]:_(s16), [[UV1:%[0-9]+]]:_(s16), [[UV2:%[0-9]+]]:_(s16), [[UV3:%[0-9]+]]:_(s16) = G_UNMERGE_VALUES [[COPY]](<4 x s16>)
+    ; VI: [[FCANONICALIZE:%[0-9]+]]:_(s16) = G_FCANONICALIZE [[UV]]
+    ; VI: [[FCANONICALIZE1:%[0-9]+]]:_(s16) = G_FCANONICALIZE [[UV1]]
+    ; VI: [[FCANONICALIZE2:%[0-9]+]]:_(s16) = G_FCANONICALIZE [[UV2]]
+    ; VI: [[FCANONICALIZE3:%[0-9]+]]:_(s16) = G_FCANONICALIZE [[UV3]]
+    ; VI: [[BUILD_VECTOR:%[0-9]+]]:_(<4 x s16>) = G_BUILD_VECTOR [[FCANONICALIZE]](s16), [[FCANONICALIZE1]](s16), [[FCANONICALIZE2]](s16), [[FCANONICALIZE3]](s16)
+    ; VI: $vgpr0_vgpr1 = COPY [[BUILD_VECTOR]](<4 x s16>)
+    ; GFX9-LABEL: name: test_fcanonicalize_v4s16
+    ; GFX9: [[COPY:%[0-9]+]]:_(<4 x s16>) = COPY $vgpr0_vgpr1
+    ; GFX9: [[UV:%[0-9]+]]:_(<2 x s16>), [[UV1:%[0-9]+]]:_(<2 x s16>) = G_UNMERGE_VALUES [[COPY]](<4 x s16>)
+    ; GFX9: [[FCANONICALIZE:%[0-9]+]]:_(<2 x s16>) = G_FCANONICALIZE [[UV]]
+    ; GFX9: [[FCANONICALIZE1:%[0-9]+]]:_(<2 x s16>) = G_FCANONICALIZE [[UV1]]
+    ; GFX9: [[CONCAT_VECTORS:%[0-9]+]]:_(<4 x s16>) = G_CONCAT_VECTORS [[FCANONICALIZE]](<2 x s16>), [[FCANONICALIZE1]](<2 x s16>)
+    ; GFX9: $vgpr0_vgpr1 = COPY [[CONCAT_VECTORS]](<4 x s16>)
+    %0:_(<4 x s16>) = COPY $vgpr0_vgpr1
+    %1:_(<4 x s16>) = G_FCANONICALIZE %0
+    $vgpr0_vgpr1 = COPY %1
+...