AMDGPU/GlobalISel: Selection for fminnum/fmaxnum

[arsenm]

Summary

v2f16 case doesn't work yet because the VOP3P complex patterns haven't
been ported yet.

[nhaehnle]

Why are you removing the testcases for the intrinsics?

[nhaehnle]

Oh, is that because the new node causes the intrinsics to be lowered to G_FMINNUM etc.? Why doesn't this affect any other targets?

[arsenm]

In D64490#1587203, @nhaehnle wrote:

Oh, is that because the new node causes the intrinsics to be lowered to G_FMINNUM etc.? Why doesn't this affect any other targets?

I think Tom just added these here as sample intrinsics. The handling wasn't correct anyway. Other targets didn't try to do this sort of thing. I don't think any generic intrinsic should be directly handled this way, and they should all route through a G_* instruction to be legalized

[nhaehnle]

That seems reasonable to me.

[arsenm]

r366585

include/llvm/Target/GlobalISel/SelectionDAGCompat.td

 def : GINodeEquiv<G_FSQRT, fsqrt>;
 def : GINodeEquiv<G_FFLOOR, ffloor>;
 def : GINodeEquiv<G_FRINT, frint>;
 def : GINodeEquiv<G_FNEARBYINT, fnearbyint>;
 def : GINodeEquiv<G_SMIN, smin>;
 def : GINodeEquiv<G_SMAX, smax>;
 def : GINodeEquiv<G_UMIN, umin>;
 def : GINodeEquiv<G_UMAX, umax>;
+def : GINodeEquiv<G_FMINNUM, fminnum>;
+def : GINodeEquiv<G_FMAXNUM, fmaxnum>;
+def : GINodeEquiv<G_FMINNUM_IEEE, fminnum_ieee>;
+def : GINodeEquiv<G_FMAXNUM_IEEE, fmaxnum_ieee>;
 
 // Broadly speaking G_LOAD is equivalent to ISD::LOAD but there are some
 // complications that tablegen must take care of. For example, Predicates such
 // as isSignExtLoad require that this is not a perfect 1:1 mapping since a
 // sign-extending load is (G_SEXTLOAD x) in GlobalISel. Additionally,
 // G_LOAD handles both atomic and non-atomic loads where as SelectionDAG had
 // separate nodes for them. This GINodeEquiv maps the non-atomic loads to
 // G_LOAD with a non-atomic MachineMemOperand.

lib/Target/AMDGPU/AMDGPURegisterBankInfo.cpp

AMDGPURegisterBankInfo::getInstrMapping(const MachineInstr &MI) const {
   case AMDGPU::G_FMA:
   case AMDGPU::G_FSQRT:
   case AMDGPU::G_SITOFP:
   case AMDGPU::G_UITOFP:
   case AMDGPU::G_FPTRUNC:
   case AMDGPU::G_FPEXT:
   case AMDGPU::G_FEXP2:
   case AMDGPU::G_FLOG2:
+  case AMDGPU::G_FMINNUM:
+  case AMDGPU::G_FMAXNUM:
+  case AMDGPU::G_FMINNUM_IEEE:
+  case AMDGPU::G_FMAXNUM_IEEE:
   case AMDGPU::G_FCANONICALIZE:
   case AMDGPU::G_INTRINSIC_TRUNC:
   case AMDGPU::G_INTRINSIC_ROUND:
     return getDefaultMappingVOP(MI);
   case AMDGPU::G_IMPLICIT_DEF: {
     unsigned Size = MRI.getType(MI.getOperand(0).getReg()).getSizeInBits();
     OpdsMapping[0] = AMDGPU::getValueMapping(AMDGPU::SGPRRegBankID, Size);
     break;

test/CodeGen/AMDGPU/GlobalISel/inst-select-fmaxnum-ieee.mir

+# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
+# RUN: llc -march=amdgcn -mcpu=hawaii -run-pass=instruction-select -verify-machineinstrs -global-isel-abort=0 -o - %s  | FileCheck -check-prefix=GFX7 %s
+# RUN: llc -march=amdgcn -mcpu=fiji -run-pass=instruction-select -verify-machineinstrs -global-isel-abort=0 -o - %s  | FileCheck -check-prefix=GFX8 %s
+# RUN: llc -march=amdgcn -mcpu=gfx900 -run-pass=instruction-select -verify-machineinstrs -global-isel-abort=0 -o - %s  | FileCheck -check-prefix=GFX9 %s
+
+---
+
+name: fmaxnum_ieee_f32_f64_ieee_mode_on
+legalized:       true
+regBankSelected: true
+machineFunctionInfo:
+  mode:
+    ieee: true
+
+body: |
+  bb.0:
+    liveins: $sgpr0, $vgpr0, $vgpr1, $vgpr3_vgpr4, $sgpr10_sgpr11, $vgpr10_vgpr11, $vgpr12_vgpr13
+    ; GFX7-LABEL: name: fmaxnum_ieee_f32_f64_ieee_mode_on
+    ; GFX7: [[COPY:%[0-9]+]]:sreg_32_xm0 = COPY $sgpr0
+    ; GFX7: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX7: [[COPY2:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX7: [[COPY3:%[0-9]+]]:vreg_64 = COPY $vgpr3_vgpr4
+    ; GFX7: [[COPY4:%[0-9]+]]:sreg_64_xexec = COPY $sgpr10_sgpr11
+    ; GFX7: [[COPY5:%[0-9]+]]:vreg_64 = COPY $vgpr10_vgpr11
+    ; GFX7: [[COPY6:%[0-9]+]]:vreg_64 = COPY $vgpr12_vgpr13
+    ; GFX7: [[V_MAX_F32_e64_:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY1]], 0, [[COPY]], 0, 0, implicit $exec
+    ; GFX7: [[V_MAX_F32_e64_1:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY]], 0, [[COPY1]], 0, 0, implicit $exec
+    ; GFX7: [[V_MAX_F32_e64_2:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY1]], 0, [[COPY2]], 0, 0, implicit $exec
+    ; GFX7: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX7: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_1]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX7: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_2]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX7: [[V_MAX_F64_:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY4]], 0, [[COPY5]], 0, 0, implicit $exec
+    ; GFX7: [[V_MAX_F64_1:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY5]], 0, [[COPY4]], 0, 0, implicit $exec
+    ; GFX7: [[V_MAX_F64_2:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY5]], 0, [[COPY6]], 0, 0, implicit $exec
+    ; GFX7: S_ENDPGM 0, implicit [[V_MAX_F64_]], implicit [[V_MAX_F64_1]], implicit [[V_MAX_F64_2]]
+    ; GFX8-LABEL: name: fmaxnum_ieee_f32_f64_ieee_mode_on
+    ; GFX8: [[COPY:%[0-9]+]]:sreg_32_xm0 = COPY $sgpr0
+    ; GFX8: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX8: [[COPY2:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX8: [[COPY3:%[0-9]+]]:vreg_64 = COPY $vgpr3_vgpr4
+    ; GFX8: [[COPY4:%[0-9]+]]:sreg_64_xexec = COPY $sgpr10_sgpr11
+    ; GFX8: [[COPY5:%[0-9]+]]:vreg_64 = COPY $vgpr10_vgpr11
+    ; GFX8: [[COPY6:%[0-9]+]]:vreg_64 = COPY $vgpr12_vgpr13
+    ; GFX8: [[V_MAX_F32_e64_:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY1]], 0, [[COPY]], 0, 0, implicit $exec
+    ; GFX8: [[V_MAX_F32_e64_1:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY]], 0, [[COPY1]], 0, 0, implicit $exec
+    ; GFX8: [[V_MAX_F32_e64_2:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY1]], 0, [[COPY2]], 0, 0, implicit $exec
+    ; GFX8: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX8: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_1]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX8: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_2]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX8: [[V_MAX_F64_:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY4]], 0, [[COPY5]], 0, 0, implicit $exec
+    ; GFX8: [[V_MAX_F64_1:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY5]], 0, [[COPY4]], 0, 0, implicit $exec
+    ; GFX8: [[V_MAX_F64_2:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY5]], 0, [[COPY6]], 0, 0, implicit $exec
+    ; GFX8: S_ENDPGM 0, implicit [[V_MAX_F64_]], implicit [[V_MAX_F64_1]], implicit [[V_MAX_F64_2]]
+    ; GFX9-LABEL: name: fmaxnum_ieee_f32_f64_ieee_mode_on
+    ; GFX9: [[COPY:%[0-9]+]]:sreg_32_xm0 = COPY $sgpr0
+    ; GFX9: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX9: [[COPY2:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX9: [[COPY3:%[0-9]+]]:vreg_64 = COPY $vgpr3_vgpr4
+    ; GFX9: [[COPY4:%[0-9]+]]:sreg_64_xexec = COPY $sgpr10_sgpr11
+    ; GFX9: [[COPY5:%[0-9]+]]:vreg_64 = COPY $vgpr10_vgpr11
+    ; GFX9: [[COPY6:%[0-9]+]]:vreg_64 = COPY $vgpr12_vgpr13
+    ; GFX9: [[V_MAX_F32_e64_:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY1]], 0, [[COPY]], 0, 0, implicit $exec
+    ; GFX9: [[V_MAX_F32_e64_1:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY]], 0, [[COPY1]], 0, 0, implicit $exec
+    ; GFX9: [[V_MAX_F32_e64_2:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY1]], 0, [[COPY2]], 0, 0, implicit $exec
+    ; GFX9: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX9: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_1]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX9: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_2]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX9: [[V_MAX_F64_:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY4]], 0, [[COPY5]], 0, 0, implicit $exec
+    ; GFX9: [[V_MAX_F64_1:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY5]], 0, [[COPY4]], 0, 0, implicit $exec
+    ; GFX9: [[V_MAX_F64_2:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY5]], 0, [[COPY6]], 0, 0, implicit $exec
+    ; GFX9: S_ENDPGM 0, implicit [[V_MAX_F64_]], implicit [[V_MAX_F64_1]], implicit [[V_MAX_F64_2]]
+    %0:sgpr(s32) = COPY $sgpr0
+    %1:vgpr(s32) = COPY $vgpr0
+    %2:vgpr(s32) = COPY $vgpr1
+    %3:vgpr(p1) = COPY $vgpr3_vgpr4
+
+    %10:sgpr(s64) = COPY $sgpr10_sgpr11
+    %11:vgpr(s64) = COPY $vgpr10_vgpr11
+    %12:vgpr(s64) = COPY $vgpr12_vgpr13
+
+    ; maxnum_ieee vs
+    %4:vgpr(s32) = G_FMAXNUM_IEEE %1, %0
+
+    ; maxnum_ieee sv
+    %5:vgpr(s32) = G_FMAXNUM_IEEE %0, %1
+
+    ; maxnum_ieee vv
+    %6:vgpr(s32) = G_FMAXNUM_IEEE %1, %2
+
+    G_STORE %4, %3 :: (store 4, addrspace 1)
+    G_STORE %5, %3 :: (store 4, addrspace 1)
+    G_STORE %6, %3 :: (store 4, addrspace 1)
+
+    ; 64-bit
+
+    ; maxnum_ieee vs
+    %14:vgpr(s64) = G_FMAXNUM_IEEE %10, %11
+
+    ; maxnum_ieee sv
+    %15:vgpr(s64) = G_FMAXNUM_IEEE %11, %10
+
+    ; maxnum_ieee vv
+    %16:vgpr(s64) = G_FMAXNUM_IEEE %11, %12
+
+    S_ENDPGM 0, implicit %14, implicit %15, implicit %16
+...
+
+
+# FIXME: Ideally this would fail to select with ieee mode disabled
+---
+
+name: fmaxnum_ieee_f32_f64_ieee_mode_off
+legalized:       true
+regBankSelected: true
+machineFunctionInfo:
+  mode:
+    ieee: false
+
+body: |
+  bb.0:
+    liveins: $sgpr0, $vgpr0, $vgpr1, $vgpr3_vgpr4, $sgpr10_sgpr11, $vgpr10_vgpr11, $vgpr12_vgpr13
+    ; GFX7-LABEL: name: fmaxnum_ieee_f32_f64_ieee_mode_off
+    ; GFX7: [[COPY:%[0-9]+]]:sreg_32_xm0 = COPY $sgpr0
+    ; GFX7: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX7: [[COPY2:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX7: [[COPY3:%[0-9]+]]:vreg_64 = COPY $vgpr3_vgpr4
+    ; GFX7: [[COPY4:%[0-9]+]]:sreg_64_xexec = COPY $sgpr10_sgpr11
+    ; GFX7: [[COPY5:%[0-9]+]]:vreg_64 = COPY $vgpr10_vgpr11
+    ; GFX7: [[COPY6:%[0-9]+]]:vreg_64 = COPY $vgpr12_vgpr13
+    ; GFX7: [[V_MAX_F32_e64_:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY1]], 0, [[COPY]], 0, 0, implicit $exec
+    ; GFX7: [[V_MAX_F32_e64_1:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY]], 0, [[COPY1]], 0, 0, implicit $exec
+    ; GFX7: [[V_MAX_F32_e64_2:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY1]], 0, [[COPY2]], 0, 0, implicit $exec
+    ; GFX7: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX7: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_1]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX7: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_2]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX7: [[V_MAX_F64_:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY4]], 0, [[COPY5]], 0, 0, implicit $exec
+    ; GFX7: [[V_MAX_F64_1:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY5]], 0, [[COPY4]], 0, 0, implicit $exec
+    ; GFX7: [[V_MAX_F64_2:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY5]], 0, [[COPY6]], 0, 0, implicit $exec
+    ; GFX7: S_ENDPGM 0, implicit [[V_MAX_F64_]], implicit [[V_MAX_F64_1]], implicit [[V_MAX_F64_2]]
+    ; GFX8-LABEL: name: fmaxnum_ieee_f32_f64_ieee_mode_off
+    ; GFX8: [[COPY:%[0-9]+]]:sreg_32_xm0 = COPY $sgpr0
+    ; GFX8: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX8: [[COPY2:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX8: [[COPY3:%[0-9]+]]:vreg_64 = COPY $vgpr3_vgpr4
+    ; GFX8: [[COPY4:%[0-9]+]]:sreg_64_xexec = COPY $sgpr10_sgpr11
+    ; GFX8: [[COPY5:%[0-9]+]]:vreg_64 = COPY $vgpr10_vgpr11
+    ; GFX8: [[COPY6:%[0-9]+]]:vreg_64 = COPY $vgpr12_vgpr13
+    ; GFX8: [[V_MAX_F32_e64_:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY1]], 0, [[COPY]], 0, 0, implicit $exec
+    ; GFX8: [[V_MAX_F32_e64_1:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY]], 0, [[COPY1]], 0, 0, implicit $exec
+    ; GFX8: [[V_MAX_F32_e64_2:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY1]], 0, [[COPY2]], 0, 0, implicit $exec
+    ; GFX8: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX8: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_1]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX8: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_2]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX8: [[V_MAX_F64_:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY4]], 0, [[COPY5]], 0, 0, implicit $exec
+    ; GFX8: [[V_MAX_F64_1:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY5]], 0, [[COPY4]], 0, 0, implicit $exec
+    ; GFX8: [[V_MAX_F64_2:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY5]], 0, [[COPY6]], 0, 0, implicit $exec
+    ; GFX8: S_ENDPGM 0, implicit [[V_MAX_F64_]], implicit [[V_MAX_F64_1]], implicit [[V_MAX_F64_2]]
+    ; GFX9-LABEL: name: fmaxnum_ieee_f32_f64_ieee_mode_off
+    ; GFX9: [[COPY:%[0-9]+]]:sreg_32_xm0 = COPY $sgpr0
+    ; GFX9: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX9: [[COPY2:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX9: [[COPY3:%[0-9]+]]:vreg_64 = COPY $vgpr3_vgpr4
+    ; GFX9: [[COPY4:%[0-9]+]]:sreg_64_xexec = COPY $sgpr10_sgpr11
+    ; GFX9: [[COPY5:%[0-9]+]]:vreg_64 = COPY $vgpr10_vgpr11
+    ; GFX9: [[COPY6:%[0-9]+]]:vreg_64 = COPY $vgpr12_vgpr13
+    ; GFX9: [[V_MAX_F32_e64_:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY1]], 0, [[COPY]], 0, 0, implicit $exec
+    ; GFX9: [[V_MAX_F32_e64_1:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY]], 0, [[COPY1]], 0, 0, implicit $exec
+    ; GFX9: [[V_MAX_F32_e64_2:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY1]], 0, [[COPY2]], 0, 0, implicit $exec
+    ; GFX9: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX9: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_1]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX9: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_2]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX9: [[V_MAX_F64_:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY4]], 0, [[COPY5]], 0, 0, implicit $exec
+    ; GFX9: [[V_MAX_F64_1:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY5]], 0, [[COPY4]], 0, 0, implicit $exec
+    ; GFX9: [[V_MAX_F64_2:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY5]], 0, [[COPY6]], 0, 0, implicit $exec
+    ; GFX9: S_ENDPGM 0, implicit [[V_MAX_F64_]], implicit [[V_MAX_F64_1]], implicit [[V_MAX_F64_2]]
+    %0:sgpr(s32) = COPY $sgpr0
+    %1:vgpr(s32) = COPY $vgpr0
+    %2:vgpr(s32) = COPY $vgpr1
+    %3:vgpr(p1) = COPY $vgpr3_vgpr4
+
+    %10:sgpr(s64) = COPY $sgpr10_sgpr11
+    %11:vgpr(s64) = COPY $vgpr10_vgpr11
+    %12:vgpr(s64) = COPY $vgpr12_vgpr13
+
+    ; maxnum_ieee vs
+    %4:vgpr(s32) = G_FMAXNUM_IEEE %1, %0
+
+    ; maxnum_ieee sv
+    %5:vgpr(s32) = G_FMAXNUM_IEEE %0, %1
+
+    ; maxnum_ieee vv
+    %6:vgpr(s32) = G_FMAXNUM_IEEE %1, %2
+
+    G_STORE %4, %3 :: (store 4, addrspace 1)
+    G_STORE %5, %3 :: (store 4, addrspace 1)
+    G_STORE %6, %3 :: (store 4, addrspace 1)
+
+    ; 64-bit
+
+    ; maxnum_ieee vs
+    %14:vgpr(s64) = G_FMAXNUM_IEEE %10, %11
+
+    ; maxnum_ieee sv
+    %15:vgpr(s64) = G_FMAXNUM_IEEE %11, %10
+
+    ; maxnum_ieee vv
+    %16:vgpr(s64) = G_FMAXNUM_IEEE %11, %12
+
+    S_ENDPGM 0, implicit %14, implicit %15, implicit %16
+...
+
+---
+name: fmaxnum_ieee_f16_vv
+legalized: true
+regBankSelected: true
+
+body: |
+  bb.0:
+    liveins: $vgpr0, $vgpr1
+    ; GFX7-LABEL: name: fmaxnum_ieee_f16_vv
+    ; GFX7: [[COPY:%[0-9]+]]:vgpr(s32) = COPY $vgpr0
+    ; GFX7: [[COPY1:%[0-9]+]]:vgpr(s32) = COPY $vgpr1
+    ; GFX7: [[TRUNC:%[0-9]+]]:vgpr(s16) = G_TRUNC [[COPY]](s32)
+    ; GFX7: [[TRUNC1:%[0-9]+]]:vgpr(s16) = G_TRUNC [[COPY1]](s32)
+    ; GFX7: [[FMAXNUM_IEEE:%[0-9]+]]:vgpr(s16) = G_FMAXNUM_IEEE [[TRUNC]], [[TRUNC1]]
+    ; GFX7: S_ENDPGM 0, implicit [[FMAXNUM_IEEE]](s16)
+    ; GFX8-LABEL: name: fmaxnum_ieee_f16_vv
+    ; GFX8: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX8: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX8: [[V_MAX_F16_e64_:%[0-9]+]]:vgpr_32 = V_MAX_F16_e64 0, [[COPY]], 0, [[COPY1]], 0, 0, implicit $exec
+    ; GFX8: S_ENDPGM 0, implicit [[V_MAX_F16_e64_]]
+    ; GFX9-LABEL: name: fmaxnum_ieee_f16_vv
+    ; GFX9: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX9: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX9: [[V_MAX_F16_e64_:%[0-9]+]]:vgpr_32 = V_MAX_F16_e64 0, [[COPY]], 0, [[COPY1]], 0, 0, implicit $exec
+    ; GFX9: S_ENDPGM 0, implicit [[V_MAX_F16_e64_]]
+    %0:vgpr(s32) = COPY $vgpr0
+    %1:vgpr(s32) = COPY $vgpr1
+    %2:vgpr(s16) = G_TRUNC %0
+    %3:vgpr(s16) = G_TRUNC %1
+    %4:vgpr(s16) = G_FMAXNUM_IEEE %2, %3
+    S_ENDPGM 0, implicit %4
+...
+
+---
+name: fmaxnum_ieee_v2f16_vv
+legalized: true
+regBankSelected: true
+
+body: |
+  bb.0:
+    liveins: $sgpr0, $sgpr1
+
+    ; GFX7-LABEL: name: fmaxnum_ieee_v2f16_vv
+    ; GFX7: [[COPY:%[0-9]+]]:vgpr(<2 x s16>) = COPY $vgpr0
+    ; GFX7: [[COPY1:%[0-9]+]]:vgpr(<2 x s16>) = COPY $vgpr1
+    ; GFX7: [[FMAXNUM_IEEE:%[0-9]+]]:vgpr(<2 x s16>) = G_FMAXNUM_IEEE [[COPY]], [[COPY1]]
+    ; GFX7: S_ENDPGM 0, implicit [[FMAXNUM_IEEE]](<2 x s16>)
+    ; GFX8-LABEL: name: fmaxnum_ieee_v2f16_vv
+    ; GFX8: [[COPY:%[0-9]+]]:vgpr(<2 x s16>) = COPY $vgpr0
+    ; GFX8: [[COPY1:%[0-9]+]]:vgpr(<2 x s16>) = COPY $vgpr1
+    ; GFX8: [[FMAXNUM_IEEE:%[0-9]+]]:vgpr(<2 x s16>) = G_FMAXNUM_IEEE [[COPY]], [[COPY1]]
+    ; GFX8: S_ENDPGM 0, implicit [[FMAXNUM_IEEE]](<2 x s16>)
+    ; GFX9-LABEL: name: fmaxnum_ieee_v2f16_vv
+    ; GFX9: [[COPY:%[0-9]+]]:vgpr(<2 x s16>) = COPY $vgpr0
+    ; GFX9: [[COPY1:%[0-9]+]]:vgpr(<2 x s16>) = COPY $vgpr1
+    ; GFX9: [[FMAXNUM_IEEE:%[0-9]+]]:vgpr(<2 x s16>) = G_FMAXNUM_IEEE [[COPY]], [[COPY1]]
+    ; GFX9: S_ENDPGM 0, implicit [[FMAXNUM_IEEE]](<2 x s16>)
+    %0:vgpr(<2 x s16>) = COPY $vgpr0
+    %1:vgpr(<2 x s16>) = COPY $vgpr1
+    %2:vgpr(<2 x s16>) = G_FMAXNUM_IEEE %0, %1
+    S_ENDPGM 0, implicit %2
+...
+
+---
+name: fmaxnum_ieee_f16_v_fneg_v
+legalized: true
+regBankSelected: true
+
+body: |
+  bb.0:
+    liveins: $vgpr0, $vgpr1
+    ; GFX7-LABEL: name: fmaxnum_ieee_f16_v_fneg_v
+    ; GFX7: [[COPY:%[0-9]+]]:vgpr(s32) = COPY $vgpr0
+    ; GFX7: [[COPY1:%[0-9]+]]:vgpr(s32) = COPY $vgpr1
+    ; GFX7: [[TRUNC:%[0-9]+]]:vgpr(s16) = G_TRUNC [[COPY]](s32)
+    ; GFX7: [[TRUNC1:%[0-9]+]]:vgpr(s16) = G_TRUNC [[COPY1]](s32)
+    ; GFX7: [[FNEG:%[0-9]+]]:vgpr(s16) = G_FNEG [[TRUNC1]]
+    ; GFX7: [[FMAXNUM_IEEE:%[0-9]+]]:vgpr(s16) = G_FMAXNUM_IEEE [[TRUNC]], [[FNEG]]
+    ; GFX7: S_ENDPGM 0, implicit [[FMAXNUM_IEEE]](s16)
+    ; GFX8-LABEL: name: fmaxnum_ieee_f16_v_fneg_v
+    ; GFX8: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX8: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX8: [[V_MAX_F16_e64_:%[0-9]+]]:vgpr_32 = V_MAX_F16_e64 0, [[COPY]], 1, [[COPY1]], 0, 0, implicit $exec
+    ; GFX8: S_ENDPGM 0, implicit [[V_MAX_F16_e64_]]
+    ; GFX9-LABEL: name: fmaxnum_ieee_f16_v_fneg_v
+    ; GFX9: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX9: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX9: [[V_MAX_F16_e64_:%[0-9]+]]:vgpr_32 = V_MAX_F16_e64 0, [[COPY]], 1, [[COPY1]], 0, 0, implicit $exec
+    ; GFX9: S_ENDPGM 0, implicit [[V_MAX_F16_e64_]]
+    %0:vgpr(s32) = COPY $vgpr0
+    %1:vgpr(s32) = COPY $vgpr1
+    %2:vgpr(s16) = G_TRUNC %0
+    %3:vgpr(s16) = G_TRUNC %1
+    %4:vgpr(s16) = G_FNEG %3
+    %5:vgpr(s16) = G_FMAXNUM_IEEE %2, %4
+    S_ENDPGM 0, implicit %5
+...

test/CodeGen/AMDGPU/GlobalISel/inst-select-fmaxnum.mir

+# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
+# RUN: llc -march=amdgcn -mcpu=hawaii -run-pass=instruction-select -verify-machineinstrs -global-isel-abort=0 -o - %s  | FileCheck -check-prefix=GFX7 %s
+# RUN: llc -march=amdgcn -mcpu=fiji -run-pass=instruction-select -verify-machineinstrs -global-isel-abort=0 -o - %s  | FileCheck -check-prefix=GFX8 %s
+# RUN: llc -march=amdgcn -mcpu=gfx900 -run-pass=instruction-select -verify-machineinstrs -global-isel-abort=0 -o - %s  | FileCheck -check-prefix=GFX9 %s
+
+# FIXME: Ideally this would fail to select with ieee mode enabled.
+---
+
+name: fmaxnum_f32_f64_ieee_mode_on
+legalized:       true
+regBankSelected: true
+machineFunctionInfo:
+  mode:
+    ieee: true
+
+body: |
+  bb.0:
+    liveins: $sgpr0, $vgpr0, $vgpr1, $vgpr3_vgpr4, $sgpr10_sgpr11, $vgpr10_vgpr11, $vgpr12_vgpr13
+    ; GFX7-LABEL: name: fmaxnum_f32_f64_ieee_mode_on
+    ; GFX7: [[COPY:%[0-9]+]]:sreg_32_xm0 = COPY $sgpr0
+    ; GFX7: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX7: [[COPY2:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX7: [[COPY3:%[0-9]+]]:vreg_64 = COPY $vgpr3_vgpr4
+    ; GFX7: [[COPY4:%[0-9]+]]:sreg_64_xexec = COPY $sgpr10_sgpr11
+    ; GFX7: [[COPY5:%[0-9]+]]:vreg_64 = COPY $vgpr10_vgpr11
+    ; GFX7: [[COPY6:%[0-9]+]]:vreg_64 = COPY $vgpr12_vgpr13
+    ; GFX7: [[V_MAX_F32_e64_:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY1]], 0, [[COPY]], 0, 0, implicit $exec
+    ; GFX7: [[V_MAX_F32_e64_1:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY]], 0, [[COPY1]], 0, 0, implicit $exec
+    ; GFX7: [[V_MAX_F32_e64_2:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY1]], 0, [[COPY2]], 0, 0, implicit $exec
+    ; GFX7: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX7: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_1]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX7: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_2]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX7: [[V_MAX_F64_:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY4]], 0, [[COPY5]], 0, 0, implicit $exec
+    ; GFX7: [[V_MAX_F64_1:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY5]], 0, [[COPY4]], 0, 0, implicit $exec
+    ; GFX7: [[V_MAX_F64_2:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY5]], 0, [[COPY6]], 0, 0, implicit $exec
+    ; GFX7: S_ENDPGM 0, implicit [[V_MAX_F64_]], implicit [[V_MAX_F64_1]], implicit [[V_MAX_F64_2]]
+    ; GFX8-LABEL: name: fmaxnum_f32_f64_ieee_mode_on
+    ; GFX8: [[COPY:%[0-9]+]]:sreg_32_xm0 = COPY $sgpr0
+    ; GFX8: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX8: [[COPY2:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX8: [[COPY3:%[0-9]+]]:vreg_64 = COPY $vgpr3_vgpr4
+    ; GFX8: [[COPY4:%[0-9]+]]:sreg_64_xexec = COPY $sgpr10_sgpr11
+    ; GFX8: [[COPY5:%[0-9]+]]:vreg_64 = COPY $vgpr10_vgpr11
+    ; GFX8: [[COPY6:%[0-9]+]]:vreg_64 = COPY $vgpr12_vgpr13
+    ; GFX8: [[V_MAX_F32_e64_:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY1]], 0, [[COPY]], 0, 0, implicit $exec
+    ; GFX8: [[V_MAX_F32_e64_1:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY]], 0, [[COPY1]], 0, 0, implicit $exec
+    ; GFX8: [[V_MAX_F32_e64_2:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY1]], 0, [[COPY2]], 0, 0, implicit $exec
+    ; GFX8: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX8: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_1]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX8: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_2]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX8: [[V_MAX_F64_:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY4]], 0, [[COPY5]], 0, 0, implicit $exec
+    ; GFX8: [[V_MAX_F64_1:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY5]], 0, [[COPY4]], 0, 0, implicit $exec
+    ; GFX8: [[V_MAX_F64_2:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY5]], 0, [[COPY6]], 0, 0, implicit $exec
+    ; GFX8: S_ENDPGM 0, implicit [[V_MAX_F64_]], implicit [[V_MAX_F64_1]], implicit [[V_MAX_F64_2]]
+    ; GFX9-LABEL: name: fmaxnum_f32_f64_ieee_mode_on
+    ; GFX9: [[COPY:%[0-9]+]]:sreg_32_xm0 = COPY $sgpr0
+    ; GFX9: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX9: [[COPY2:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX9: [[COPY3:%[0-9]+]]:vreg_64 = COPY $vgpr3_vgpr4
+    ; GFX9: [[COPY4:%[0-9]+]]:sreg_64_xexec = COPY $sgpr10_sgpr11
+    ; GFX9: [[COPY5:%[0-9]+]]:vreg_64 = COPY $vgpr10_vgpr11
+    ; GFX9: [[COPY6:%[0-9]+]]:vreg_64 = COPY $vgpr12_vgpr13
+    ; GFX9: [[V_MAX_F32_e64_:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY1]], 0, [[COPY]], 0, 0, implicit $exec
+    ; GFX9: [[V_MAX_F32_e64_1:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY]], 0, [[COPY1]], 0, 0, implicit $exec
+    ; GFX9: [[V_MAX_F32_e64_2:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY1]], 0, [[COPY2]], 0, 0, implicit $exec
+    ; GFX9: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX9: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_1]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX9: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_2]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX9: [[V_MAX_F64_:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY4]], 0, [[COPY5]], 0, 0, implicit $exec
+    ; GFX9: [[V_MAX_F64_1:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY5]], 0, [[COPY4]], 0, 0, implicit $exec
+    ; GFX9: [[V_MAX_F64_2:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY5]], 0, [[COPY6]], 0, 0, implicit $exec
+    ; GFX9: S_ENDPGM 0, implicit [[V_MAX_F64_]], implicit [[V_MAX_F64_1]], implicit [[V_MAX_F64_2]]
+    %0:sgpr(s32) = COPY $sgpr0
+    %1:vgpr(s32) = COPY $vgpr0
+    %2:vgpr(s32) = COPY $vgpr1
+    %3:vgpr(p1) = COPY $vgpr3_vgpr4
+
+    %10:sgpr(s64) = COPY $sgpr10_sgpr11
+    %11:vgpr(s64) = COPY $vgpr10_vgpr11
+    %12:vgpr(s64) = COPY $vgpr12_vgpr13
+
+    ; maxnum vs
+    %4:vgpr(s32) = G_FMAXNUM %1, %0
+
+    ; maxnum sv
+    %5:vgpr(s32) = G_FMAXNUM %0, %1
+
+    ; maxnum vv
+    %6:vgpr(s32) = G_FMAXNUM %1, %2
+
+    G_STORE %4, %3 :: (store 4, addrspace 1)
+    G_STORE %5, %3 :: (store 4, addrspace 1)
+    G_STORE %6, %3 :: (store 4, addrspace 1)
+
+    ; 64-bit
+
+    ; maxnum vs
+    %14:vgpr(s64) = G_FMAXNUM %10, %11
+
+    ; maxnum sv
+    %15:vgpr(s64) = G_FMAXNUM %11, %10
+
+    ; maxnum vv
+    %16:vgpr(s64) = G_FMAXNUM %11, %12
+
+    S_ENDPGM 0, implicit %14, implicit %15, implicit %16
+...
+
+---
+
+name: fmaxnum_f32_f64_ieee_mode_off
+legalized:       true
+regBankSelected: true
+machineFunctionInfo:
+  mode:
+    ieee: false
+
+body: |
+  bb.0:
+    liveins: $sgpr0, $vgpr0, $vgpr1, $vgpr3_vgpr4, $sgpr10_sgpr11, $vgpr10_vgpr11, $vgpr12_vgpr13
+    ; GFX7-LABEL: name: fmaxnum_f32_f64_ieee_mode_off
+    ; GFX7: [[COPY:%[0-9]+]]:sreg_32_xm0 = COPY $sgpr0
+    ; GFX7: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX7: [[COPY2:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX7: [[COPY3:%[0-9]+]]:vreg_64 = COPY $vgpr3_vgpr4
+    ; GFX7: [[COPY4:%[0-9]+]]:sreg_64_xexec = COPY $sgpr10_sgpr11
+    ; GFX7: [[COPY5:%[0-9]+]]:vreg_64 = COPY $vgpr10_vgpr11
+    ; GFX7: [[COPY6:%[0-9]+]]:vreg_64 = COPY $vgpr12_vgpr13
+    ; GFX7: [[V_MAX_F32_e64_:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY1]], 0, [[COPY]], 0, 0, implicit $exec
+    ; GFX7: [[V_MAX_F32_e64_1:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY]], 0, [[COPY1]], 0, 0, implicit $exec
+    ; GFX7: [[V_MAX_F32_e64_2:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY1]], 0, [[COPY2]], 0, 0, implicit $exec
+    ; GFX7: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX7: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_1]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX7: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_2]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX7: [[V_MAX_F64_:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY4]], 0, [[COPY5]], 0, 0, implicit $exec
+    ; GFX7: [[V_MAX_F64_1:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY5]], 0, [[COPY4]], 0, 0, implicit $exec
+    ; GFX7: [[V_MAX_F64_2:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY5]], 0, [[COPY6]], 0, 0, implicit $exec
+    ; GFX7: S_ENDPGM 0, implicit [[V_MAX_F64_]], implicit [[V_MAX_F64_1]], implicit [[V_MAX_F64_2]]
+    ; GFX8-LABEL: name: fmaxnum_f32_f64_ieee_mode_off
+    ; GFX8: [[COPY:%[0-9]+]]:sreg_32_xm0 = COPY $sgpr0
+    ; GFX8: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX8: [[COPY2:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX8: [[COPY3:%[0-9]+]]:vreg_64 = COPY $vgpr3_vgpr4
+    ; GFX8: [[COPY4:%[0-9]+]]:sreg_64_xexec = COPY $sgpr10_sgpr11
+    ; GFX8: [[COPY5:%[0-9]+]]:vreg_64 = COPY $vgpr10_vgpr11
+    ; GFX8: [[COPY6:%[0-9]+]]:vreg_64 = COPY $vgpr12_vgpr13
+    ; GFX8: [[V_MAX_F32_e64_:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY1]], 0, [[COPY]], 0, 0, implicit $exec
+    ; GFX8: [[V_MAX_F32_e64_1:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY]], 0, [[COPY1]], 0, 0, implicit $exec
+    ; GFX8: [[V_MAX_F32_e64_2:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY1]], 0, [[COPY2]], 0, 0, implicit $exec
+    ; GFX8: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX8: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_1]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX8: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_2]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX8: [[V_MAX_F64_:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY4]], 0, [[COPY5]], 0, 0, implicit $exec
+    ; GFX8: [[V_MAX_F64_1:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY5]], 0, [[COPY4]], 0, 0, implicit $exec
+    ; GFX8: [[V_MAX_F64_2:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY5]], 0, [[COPY6]], 0, 0, implicit $exec
+    ; GFX8: S_ENDPGM 0, implicit [[V_MAX_F64_]], implicit [[V_MAX_F64_1]], implicit [[V_MAX_F64_2]]
+    ; GFX9-LABEL: name: fmaxnum_f32_f64_ieee_mode_off
+    ; GFX9: [[COPY:%[0-9]+]]:sreg_32_xm0 = COPY $sgpr0
+    ; GFX9: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX9: [[COPY2:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX9: [[COPY3:%[0-9]+]]:vreg_64 = COPY $vgpr3_vgpr4
+    ; GFX9: [[COPY4:%[0-9]+]]:sreg_64_xexec = COPY $sgpr10_sgpr11
+    ; GFX9: [[COPY5:%[0-9]+]]:vreg_64 = COPY $vgpr10_vgpr11
+    ; GFX9: [[COPY6:%[0-9]+]]:vreg_64 = COPY $vgpr12_vgpr13
+    ; GFX9: [[V_MAX_F32_e64_:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY1]], 0, [[COPY]], 0, 0, implicit $exec
+    ; GFX9: [[V_MAX_F32_e64_1:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY]], 0, [[COPY1]], 0, 0, implicit $exec
+    ; GFX9: [[V_MAX_F32_e64_2:%[0-9]+]]:vgpr_32 = V_MAX_F32_e64 0, [[COPY1]], 0, [[COPY2]], 0, 0, implicit $exec
+    ; GFX9: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX9: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_1]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX9: FLAT_STORE_DWORD [[COPY3]], [[V_MAX_F32_e64_2]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX9: [[V_MAX_F64_:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY4]], 0, [[COPY5]], 0, 0, implicit $exec
+    ; GFX9: [[V_MAX_F64_1:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY5]], 0, [[COPY4]], 0, 0, implicit $exec
+    ; GFX9: [[V_MAX_F64_2:%[0-9]+]]:vreg_64 = V_MAX_F64 0, [[COPY5]], 0, [[COPY6]], 0, 0, implicit $exec
+    ; GFX9: S_ENDPGM 0, implicit [[V_MAX_F64_]], implicit [[V_MAX_F64_1]], implicit [[V_MAX_F64_2]]
+    %0:sgpr(s32) = COPY $sgpr0
+    %1:vgpr(s32) = COPY $vgpr0
+    %2:vgpr(s32) = COPY $vgpr1
+    %3:vgpr(p1) = COPY $vgpr3_vgpr4
+
+    %10:sgpr(s64) = COPY $sgpr10_sgpr11
+    %11:vgpr(s64) = COPY $vgpr10_vgpr11
+    %12:vgpr(s64) = COPY $vgpr12_vgpr13
+
+    ; maxnum vs
+    %4:vgpr(s32) = G_FMAXNUM %1, %0
+
+    ; maxnum sv
+    %5:vgpr(s32) = G_FMAXNUM %0, %1
+
+    ; maxnum vv
+    %6:vgpr(s32) = G_FMAXNUM %1, %2
+
+    G_STORE %4, %3 :: (store 4, addrspace 1)
+    G_STORE %5, %3 :: (store 4, addrspace 1)
+    G_STORE %6, %3 :: (store 4, addrspace 1)
+
+    ; 64-bit
+
+    ; maxnum vs
+    %14:vgpr(s64) = G_FMAXNUM %10, %11
+
+    ; maxnum sv
+    %15:vgpr(s64) = G_FMAXNUM %11, %10
+
+    ; maxnum vv
+    %16:vgpr(s64) = G_FMAXNUM %11, %12
+
+    S_ENDPGM 0, implicit %14, implicit %15, implicit %16
+...
+
+---
+name: fmaxnum_f16_vv
+legalized: true
+regBankSelected: true
+
+body: |
+  bb.0:
+    liveins: $vgpr0, $vgpr1
+    ; GFX7-LABEL: name: fmaxnum_f16_vv
+    ; GFX7: [[COPY:%[0-9]+]]:vgpr(s32) = COPY $vgpr0
+    ; GFX7: [[COPY1:%[0-9]+]]:vgpr(s32) = COPY $vgpr1
+    ; GFX7: [[TRUNC:%[0-9]+]]:vgpr(s16) = G_TRUNC [[COPY]](s32)
+    ; GFX7: [[TRUNC1:%[0-9]+]]:vgpr(s16) = G_TRUNC [[COPY1]](s32)
+    ; GFX7: [[FMAXNUM:%[0-9]+]]:vgpr(s16) = G_FMAXNUM [[TRUNC]], [[TRUNC1]]
+    ; GFX7: S_ENDPGM 0, implicit [[FMAXNUM]](s16)
+    ; GFX8-LABEL: name: fmaxnum_f16_vv
+    ; GFX8: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX8: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX8: [[V_MAX_F16_e64_:%[0-9]+]]:vgpr_32 = V_MAX_F16_e64 0, [[COPY]], 0, [[COPY1]], 0, 0, implicit $exec
+    ; GFX8: S_ENDPGM 0, implicit [[V_MAX_F16_e64_]]
+    ; GFX9-LABEL: name: fmaxnum_f16_vv
+    ; GFX9: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX9: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX9: [[V_MAX_F16_e64_:%[0-9]+]]:vgpr_32 = V_MAX_F16_e64 0, [[COPY]], 0, [[COPY1]], 0, 0, implicit $exec
+    ; GFX9: S_ENDPGM 0, implicit [[V_MAX_F16_e64_]]
+    %0:vgpr(s32) = COPY $vgpr0
+    %1:vgpr(s32) = COPY $vgpr1
+    %2:vgpr(s16) = G_TRUNC %0
+    %3:vgpr(s16) = G_TRUNC %1
+    %4:vgpr(s16) = G_FMAXNUM %2, %3
+    S_ENDPGM 0, implicit %4
+...
+
+---
+name: fmaxnum_v2f16_vv
+legalized: true
+regBankSelected: true
+
+body: |
+  bb.0:
+    liveins: $sgpr0, $sgpr1
+
+    ; GFX7-LABEL: name: fmaxnum_v2f16_vv
+    ; GFX7: [[COPY:%[0-9]+]]:vgpr(<2 x s16>) = COPY $vgpr0
+    ; GFX7: [[COPY1:%[0-9]+]]:vgpr(<2 x s16>) = COPY $vgpr1
+    ; GFX7: [[FMAXNUM:%[0-9]+]]:vgpr(<2 x s16>) = G_FMAXNUM [[COPY]], [[COPY1]]
+    ; GFX7: S_ENDPGM 0, implicit [[FMAXNUM]](<2 x s16>)
+    ; GFX8-LABEL: name: fmaxnum_v2f16_vv
+    ; GFX8: [[COPY:%[0-9]+]]:vgpr(<2 x s16>) = COPY $vgpr0
+    ; GFX8: [[COPY1:%[0-9]+]]:vgpr(<2 x s16>) = COPY $vgpr1
+    ; GFX8: [[FMAXNUM:%[0-9]+]]:vgpr(<2 x s16>) = G_FMAXNUM [[COPY]], [[COPY1]]
+    ; GFX8: S_ENDPGM 0, implicit [[FMAXNUM]](<2 x s16>)
+    ; GFX9-LABEL: name: fmaxnum_v2f16_vv
+    ; GFX9: [[COPY:%[0-9]+]]:vgpr(<2 x s16>) = COPY $vgpr0
+    ; GFX9: [[COPY1:%[0-9]+]]:vgpr(<2 x s16>) = COPY $vgpr1
+    ; GFX9: [[FMAXNUM:%[0-9]+]]:vgpr(<2 x s16>) = G_FMAXNUM [[COPY]], [[COPY1]]
+    ; GFX9: S_ENDPGM 0, implicit [[FMAXNUM]](<2 x s16>)
+    %0:vgpr(<2 x s16>) = COPY $vgpr0
+    %1:vgpr(<2 x s16>) = COPY $vgpr1
+    %2:vgpr(<2 x s16>) = G_FMAXNUM %0, %1
+    S_ENDPGM 0, implicit %2
+...
+
+---
+name: fmaxnum_f16_v_fneg_v
+legalized: true
+regBankSelected: true
+
+body: |
+  bb.0:
+    liveins: $vgpr0, $vgpr1
+    ; GFX7-LABEL: name: fmaxnum_f16_v_fneg_v
+    ; GFX7: [[COPY:%[0-9]+]]:vgpr(s32) = COPY $vgpr0
+    ; GFX7: [[COPY1:%[0-9]+]]:vgpr(s32) = COPY $vgpr1
+    ; GFX7: [[TRUNC:%[0-9]+]]:vgpr(s16) = G_TRUNC [[COPY]](s32)
+    ; GFX7: [[TRUNC1:%[0-9]+]]:vgpr(s16) = G_TRUNC [[COPY1]](s32)
+    ; GFX7: [[FNEG:%[0-9]+]]:vgpr(s16) = G_FNEG [[TRUNC1]]
+    ; GFX7: [[FMAXNUM:%[0-9]+]]:vgpr(s16) = G_FMAXNUM [[TRUNC]], [[FNEG]]
+    ; GFX7: S_ENDPGM 0, implicit [[FMAXNUM]](s16)
+    ; GFX8-LABEL: name: fmaxnum_f16_v_fneg_v
+    ; GFX8: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX8: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX8: [[V_MAX_F16_e64_:%[0-9]+]]:vgpr_32 = V_MAX_F16_e64 0, [[COPY]], 1, [[COPY1]], 0, 0, implicit $exec
+    ; GFX8: S_ENDPGM 0, implicit [[V_MAX_F16_e64_]]
+    ; GFX9-LABEL: name: fmaxnum_f16_v_fneg_v
+    ; GFX9: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX9: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX9: [[V_MAX_F16_e64_:%[0-9]+]]:vgpr_32 = V_MAX_F16_e64 0, [[COPY]], 1, [[COPY1]], 0, 0, implicit $exec
+    ; GFX9: S_ENDPGM 0, implicit [[V_MAX_F16_e64_]]
+    %0:vgpr(s32) = COPY $vgpr0
+    %1:vgpr(s32) = COPY $vgpr1
+    %2:vgpr(s16) = G_TRUNC %0
+    %3:vgpr(s16) = G_TRUNC %1
+    %4:vgpr(s16) = G_FNEG %3
+    %5:vgpr(s16) = G_FMAXNUM %2, %4
+    S_ENDPGM 0, implicit %5
+...

test/CodeGen/AMDGPU/GlobalISel/inst-select-fminnum-ieee.mir

+# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
+# RUN: llc -march=amdgcn -mcpu=hawaii -run-pass=instruction-select -verify-machineinstrs -global-isel-abort=0 -o - %s  | FileCheck -check-prefix=GFX7 %s
+# RUN: llc -march=amdgcn -mcpu=fiji -run-pass=instruction-select -verify-machineinstrs -global-isel-abort=0 -o - %s  | FileCheck -check-prefix=GFX8 %s
+# RUN: llc -march=amdgcn -mcpu=gfx900 -run-pass=instruction-select -verify-machineinstrs -global-isel-abort=0 -o - %s  | FileCheck -check-prefix=GFX9 %s
+
+---
+
+name: fminnum_ieee_f32_f64_ieee_mode_on
+legalized:       true
+regBankSelected: true
+machineFunctionInfo:
+  mode:
+    ieee: true
+
+body: |
+  bb.0:
+    liveins: $sgpr0, $vgpr0, $vgpr1, $vgpr3_vgpr4, $sgpr10_sgpr11, $vgpr10_vgpr11, $vgpr12_vgpr13
+    ; GFX7-LABEL: name: fminnum_ieee_f32_f64_ieee_mode_on
+    ; GFX7: [[COPY:%[0-9]+]]:sreg_32_xm0 = COPY $sgpr0
+    ; GFX7: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX7: [[COPY2:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX7: [[COPY3:%[0-9]+]]:vreg_64 = COPY $vgpr3_vgpr4
+    ; GFX7: [[COPY4:%[0-9]+]]:sreg_64_xexec = COPY $sgpr10_sgpr11
+    ; GFX7: [[COPY5:%[0-9]+]]:vreg_64 = COPY $vgpr10_vgpr11
+    ; GFX7: [[COPY6:%[0-9]+]]:vreg_64 = COPY $vgpr12_vgpr13
+    ; GFX7: [[V_MIN_F32_e64_:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY1]], 0, [[COPY]], 0, 0, implicit $exec
+    ; GFX7: [[V_MIN_F32_e64_1:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY]], 0, [[COPY1]], 0, 0, implicit $exec
+    ; GFX7: [[V_MIN_F32_e64_2:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY1]], 0, [[COPY2]], 0, 0, implicit $exec
+    ; GFX7: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX7: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_1]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX7: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_2]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX7: [[V_MIN_F64_:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY4]], 0, [[COPY5]], 0, 0, implicit $exec
+    ; GFX7: [[V_MIN_F64_1:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY5]], 0, [[COPY4]], 0, 0, implicit $exec
+    ; GFX7: [[V_MIN_F64_2:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY5]], 0, [[COPY6]], 0, 0, implicit $exec
+    ; GFX7: S_ENDPGM 0, implicit [[V_MIN_F64_]], implicit [[V_MIN_F64_1]], implicit [[V_MIN_F64_2]]
+    ; GFX8-LABEL: name: fminnum_ieee_f32_f64_ieee_mode_on
+    ; GFX8: [[COPY:%[0-9]+]]:sreg_32_xm0 = COPY $sgpr0
+    ; GFX8: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX8: [[COPY2:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX8: [[COPY3:%[0-9]+]]:vreg_64 = COPY $vgpr3_vgpr4
+    ; GFX8: [[COPY4:%[0-9]+]]:sreg_64_xexec = COPY $sgpr10_sgpr11
+    ; GFX8: [[COPY5:%[0-9]+]]:vreg_64 = COPY $vgpr10_vgpr11
+    ; GFX8: [[COPY6:%[0-9]+]]:vreg_64 = COPY $vgpr12_vgpr13
+    ; GFX8: [[V_MIN_F32_e64_:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY1]], 0, [[COPY]], 0, 0, implicit $exec
+    ; GFX8: [[V_MIN_F32_e64_1:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY]], 0, [[COPY1]], 0, 0, implicit $exec
+    ; GFX8: [[V_MIN_F32_e64_2:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY1]], 0, [[COPY2]], 0, 0, implicit $exec
+    ; GFX8: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX8: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_1]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX8: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_2]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX8: [[V_MIN_F64_:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY4]], 0, [[COPY5]], 0, 0, implicit $exec
+    ; GFX8: [[V_MIN_F64_1:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY5]], 0, [[COPY4]], 0, 0, implicit $exec
+    ; GFX8: [[V_MIN_F64_2:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY5]], 0, [[COPY6]], 0, 0, implicit $exec
+    ; GFX8: S_ENDPGM 0, implicit [[V_MIN_F64_]], implicit [[V_MIN_F64_1]], implicit [[V_MIN_F64_2]]
+    ; GFX9-LABEL: name: fminnum_ieee_f32_f64_ieee_mode_on
+    ; GFX9: [[COPY:%[0-9]+]]:sreg_32_xm0 = COPY $sgpr0
+    ; GFX9: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX9: [[COPY2:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX9: [[COPY3:%[0-9]+]]:vreg_64 = COPY $vgpr3_vgpr4
+    ; GFX9: [[COPY4:%[0-9]+]]:sreg_64_xexec = COPY $sgpr10_sgpr11
+    ; GFX9: [[COPY5:%[0-9]+]]:vreg_64 = COPY $vgpr10_vgpr11
+    ; GFX9: [[COPY6:%[0-9]+]]:vreg_64 = COPY $vgpr12_vgpr13
+    ; GFX9: [[V_MIN_F32_e64_:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY1]], 0, [[COPY]], 0, 0, implicit $exec
+    ; GFX9: [[V_MIN_F32_e64_1:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY]], 0, [[COPY1]], 0, 0, implicit $exec
+    ; GFX9: [[V_MIN_F32_e64_2:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY1]], 0, [[COPY2]], 0, 0, implicit $exec
+    ; GFX9: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX9: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_1]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX9: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_2]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX9: [[V_MIN_F64_:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY4]], 0, [[COPY5]], 0, 0, implicit $exec
+    ; GFX9: [[V_MIN_F64_1:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY5]], 0, [[COPY4]], 0, 0, implicit $exec
+    ; GFX9: [[V_MIN_F64_2:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY5]], 0, [[COPY6]], 0, 0, implicit $exec
+    ; GFX9: S_ENDPGM 0, implicit [[V_MIN_F64_]], implicit [[V_MIN_F64_1]], implicit [[V_MIN_F64_2]]
+    %0:sgpr(s32) = COPY $sgpr0
+    %1:vgpr(s32) = COPY $vgpr0
+    %2:vgpr(s32) = COPY $vgpr1
+    %3:vgpr(p1) = COPY $vgpr3_vgpr4
+
+    %10:sgpr(s64) = COPY $sgpr10_sgpr11
+    %11:vgpr(s64) = COPY $vgpr10_vgpr11
+    %12:vgpr(s64) = COPY $vgpr12_vgpr13
+
+    ; minnum_ieee vs
+    %4:vgpr(s32) = G_FMINNUM_IEEE %1, %0
+
+    ; minnum_ieee sv
+    %5:vgpr(s32) = G_FMINNUM_IEEE %0, %1
+
+    ; minnum_ieee vv
+    %6:vgpr(s32) = G_FMINNUM_IEEE %1, %2
+
+    G_STORE %4, %3 :: (store 4, addrspace 1)
+    G_STORE %5, %3 :: (store 4, addrspace 1)
+    G_STORE %6, %3 :: (store 4, addrspace 1)
+
+    ; 64-bit
+
+    ; minnum_ieee vs
+    %14:vgpr(s64) = G_FMINNUM_IEEE %10, %11
+
+    ; minnum_ieee sv
+    %15:vgpr(s64) = G_FMINNUM_IEEE %11, %10
+
+    ; minnum_ieee vv
+    %16:vgpr(s64) = G_FMINNUM_IEEE %11, %12
+
+    S_ENDPGM 0, implicit %14, implicit %15, implicit %16
+...
+
+# FIXME: Ideally this would fail to select with ieee mode disabled
+
+---
+
+name: fminnum_ieee_f32_f64_ieee_mode_off
+legalized:       true
+regBankSelected: true
+machineFunctionInfo:
+  mode:
+    ieee: false
+
+body: |
+  bb.0:
+    liveins: $sgpr0, $vgpr0, $vgpr1, $vgpr3_vgpr4, $sgpr10_sgpr11, $vgpr10_vgpr11, $vgpr12_vgpr13
+    ; GFX7-LABEL: name: fminnum_ieee_f32_f64_ieee_mode_off
+    ; GFX7: [[COPY:%[0-9]+]]:sreg_32_xm0 = COPY $sgpr0
+    ; GFX7: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX7: [[COPY2:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX7: [[COPY3:%[0-9]+]]:vreg_64 = COPY $vgpr3_vgpr4
+    ; GFX7: [[COPY4:%[0-9]+]]:sreg_64_xexec = COPY $sgpr10_sgpr11
+    ; GFX7: [[COPY5:%[0-9]+]]:vreg_64 = COPY $vgpr10_vgpr11
+    ; GFX7: [[COPY6:%[0-9]+]]:vreg_64 = COPY $vgpr12_vgpr13
+    ; GFX7: [[V_MIN_F32_e64_:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY1]], 0, [[COPY]], 0, 0, implicit $exec
+    ; GFX7: [[V_MIN_F32_e64_1:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY]], 0, [[COPY1]], 0, 0, implicit $exec
+    ; GFX7: [[V_MIN_F32_e64_2:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY1]], 0, [[COPY2]], 0, 0, implicit $exec
+    ; GFX7: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX7: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_1]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX7: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_2]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX7: [[V_MIN_F64_:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY4]], 0, [[COPY5]], 0, 0, implicit $exec
+    ; GFX7: [[V_MIN_F64_1:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY5]], 0, [[COPY4]], 0, 0, implicit $exec
+    ; GFX7: [[V_MIN_F64_2:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY5]], 0, [[COPY6]], 0, 0, implicit $exec
+    ; GFX7: S_ENDPGM 0, implicit [[V_MIN_F64_]], implicit [[V_MIN_F64_1]], implicit [[V_MIN_F64_2]]
+    ; GFX8-LABEL: name: fminnum_ieee_f32_f64_ieee_mode_off
+    ; GFX8: [[COPY:%[0-9]+]]:sreg_32_xm0 = COPY $sgpr0
+    ; GFX8: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX8: [[COPY2:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX8: [[COPY3:%[0-9]+]]:vreg_64 = COPY $vgpr3_vgpr4
+    ; GFX8: [[COPY4:%[0-9]+]]:sreg_64_xexec = COPY $sgpr10_sgpr11
+    ; GFX8: [[COPY5:%[0-9]+]]:vreg_64 = COPY $vgpr10_vgpr11
+    ; GFX8: [[COPY6:%[0-9]+]]:vreg_64 = COPY $vgpr12_vgpr13
+    ; GFX8: [[V_MIN_F32_e64_:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY1]], 0, [[COPY]], 0, 0, implicit $exec
+    ; GFX8: [[V_MIN_F32_e64_1:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY]], 0, [[COPY1]], 0, 0, implicit $exec
+    ; GFX8: [[V_MIN_F32_e64_2:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY1]], 0, [[COPY2]], 0, 0, implicit $exec
+    ; GFX8: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX8: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_1]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX8: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_2]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX8: [[V_MIN_F64_:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY4]], 0, [[COPY5]], 0, 0, implicit $exec
+    ; GFX8: [[V_MIN_F64_1:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY5]], 0, [[COPY4]], 0, 0, implicit $exec
+    ; GFX8: [[V_MIN_F64_2:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY5]], 0, [[COPY6]], 0, 0, implicit $exec
+    ; GFX8: S_ENDPGM 0, implicit [[V_MIN_F64_]], implicit [[V_MIN_F64_1]], implicit [[V_MIN_F64_2]]
+    ; GFX9-LABEL: name: fminnum_ieee_f32_f64_ieee_mode_off
+    ; GFX9: [[COPY:%[0-9]+]]:sreg_32_xm0 = COPY $sgpr0
+    ; GFX9: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX9: [[COPY2:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX9: [[COPY3:%[0-9]+]]:vreg_64 = COPY $vgpr3_vgpr4
+    ; GFX9: [[COPY4:%[0-9]+]]:sreg_64_xexec = COPY $sgpr10_sgpr11
+    ; GFX9: [[COPY5:%[0-9]+]]:vreg_64 = COPY $vgpr10_vgpr11
+    ; GFX9: [[COPY6:%[0-9]+]]:vreg_64 = COPY $vgpr12_vgpr13
+    ; GFX9: [[V_MIN_F32_e64_:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY1]], 0, [[COPY]], 0, 0, implicit $exec
+    ; GFX9: [[V_MIN_F32_e64_1:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY]], 0, [[COPY1]], 0, 0, implicit $exec
+    ; GFX9: [[V_MIN_F32_e64_2:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY1]], 0, [[COPY2]], 0, 0, implicit $exec
+    ; GFX9: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX9: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_1]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX9: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_2]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX9: [[V_MIN_F64_:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY4]], 0, [[COPY5]], 0, 0, implicit $exec
+    ; GFX9: [[V_MIN_F64_1:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY5]], 0, [[COPY4]], 0, 0, implicit $exec
+    ; GFX9: [[V_MIN_F64_2:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY5]], 0, [[COPY6]], 0, 0, implicit $exec
+    ; GFX9: S_ENDPGM 0, implicit [[V_MIN_F64_]], implicit [[V_MIN_F64_1]], implicit [[V_MIN_F64_2]]
+    %0:sgpr(s32) = COPY $sgpr0
+    %1:vgpr(s32) = COPY $vgpr0
+    %2:vgpr(s32) = COPY $vgpr1
+    %3:vgpr(p1) = COPY $vgpr3_vgpr4
+
+    %10:sgpr(s64) = COPY $sgpr10_sgpr11
+    %11:vgpr(s64) = COPY $vgpr10_vgpr11
+    %12:vgpr(s64) = COPY $vgpr12_vgpr13
+
+    ; minnum_ieee vs
+    %4:vgpr(s32) = G_FMINNUM_IEEE %1, %0
+
+    ; minnum_ieee sv
+    %5:vgpr(s32) = G_FMINNUM_IEEE %0, %1
+
+    ; minnum_ieee vv
+    %6:vgpr(s32) = G_FMINNUM_IEEE %1, %2
+
+    G_STORE %4, %3 :: (store 4, addrspace 1)
+    G_STORE %5, %3 :: (store 4, addrspace 1)
+    G_STORE %6, %3 :: (store 4, addrspace 1)
+
+    ; 64-bit
+
+    ; minnum_ieee vs
+    %14:vgpr(s64) = G_FMINNUM_IEEE %10, %11
+
+    ; minnum_ieee sv
+    %15:vgpr(s64) = G_FMINNUM_IEEE %11, %10
+
+    ; minnum_ieee vv
+    %16:vgpr(s64) = G_FMINNUM_IEEE %11, %12
+
+    S_ENDPGM 0, implicit %14, implicit %15, implicit %16
+...
+
+---
+name: fminnum_ieee_f16_vv
+legalized: true
+regBankSelected: true
+
+body: |
+  bb.0:
+    liveins: $vgpr0, $vgpr1
+    ; GFX7-LABEL: name: fminnum_ieee_f16_vv
+    ; GFX7: [[COPY:%[0-9]+]]:vgpr(s32) = COPY $vgpr0
+    ; GFX7: [[COPY1:%[0-9]+]]:vgpr(s32) = COPY $vgpr1
+    ; GFX7: [[TRUNC:%[0-9]+]]:vgpr(s16) = G_TRUNC [[COPY]](s32)
+    ; GFX7: [[TRUNC1:%[0-9]+]]:vgpr(s16) = G_TRUNC [[COPY1]](s32)
+    ; GFX7: [[FMINNUM_IEEE:%[0-9]+]]:vgpr(s16) = G_FMINNUM_IEEE [[TRUNC]], [[TRUNC1]]
+    ; GFX7: S_ENDPGM 0, implicit [[FMINNUM_IEEE]](s16)
+    ; GFX8-LABEL: name: fminnum_ieee_f16_vv
+    ; GFX8: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX8: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX8: [[V_MIN_F16_e64_:%[0-9]+]]:vgpr_32 = V_MIN_F16_e64 0, [[COPY]], 0, [[COPY1]], 0, 0, implicit $exec
+    ; GFX8: S_ENDPGM 0, implicit [[V_MIN_F16_e64_]]
+    ; GFX9-LABEL: name: fminnum_ieee_f16_vv
+    ; GFX9: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX9: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX9: [[V_MIN_F16_e64_:%[0-9]+]]:vgpr_32 = V_MIN_F16_e64 0, [[COPY]], 0, [[COPY1]], 0, 0, implicit $exec
+    ; GFX9: S_ENDPGM 0, implicit [[V_MIN_F16_e64_]]
+    %0:vgpr(s32) = COPY $vgpr0
+    %1:vgpr(s32) = COPY $vgpr1
+    %2:vgpr(s16) = G_TRUNC %0
+    %3:vgpr(s16) = G_TRUNC %1
+    %4:vgpr(s16) = G_FMINNUM_IEEE %2, %3
+    S_ENDPGM 0, implicit %4
+...
+
+---
+name: fminnum_ieee_v2f16_vv
+legalized: true
+regBankSelected: true
+
+body: |
+  bb.0:
+    liveins: $sgpr0, $sgpr1
+
+    ; GFX7-LABEL: name: fminnum_ieee_v2f16_vv
+    ; GFX7: [[COPY:%[0-9]+]]:vgpr(<2 x s16>) = COPY $vgpr0
+    ; GFX7: [[COPY1:%[0-9]+]]:vgpr(<2 x s16>) = COPY $vgpr1
+    ; GFX7: [[FMINNUM_IEEE:%[0-9]+]]:vgpr(<2 x s16>) = G_FMINNUM_IEEE [[COPY]], [[COPY1]]
+    ; GFX7: S_ENDPGM 0, implicit [[FMINNUM_IEEE]](<2 x s16>)
+    ; GFX8-LABEL: name: fminnum_ieee_v2f16_vv
+    ; GFX8: [[COPY:%[0-9]+]]:vgpr(<2 x s16>) = COPY $vgpr0
+    ; GFX8: [[COPY1:%[0-9]+]]:vgpr(<2 x s16>) = COPY $vgpr1
+    ; GFX8: [[FMINNUM_IEEE:%[0-9]+]]:vgpr(<2 x s16>) = G_FMINNUM_IEEE [[COPY]], [[COPY1]]
+    ; GFX8: S_ENDPGM 0, implicit [[FMINNUM_IEEE]](<2 x s16>)
+    ; GFX9-LABEL: name: fminnum_ieee_v2f16_vv
+    ; GFX9: [[COPY:%[0-9]+]]:vgpr(<2 x s16>) = COPY $vgpr0
+    ; GFX9: [[COPY1:%[0-9]+]]:vgpr(<2 x s16>) = COPY $vgpr1
+    ; GFX9: [[FMINNUM_IEEE:%[0-9]+]]:vgpr(<2 x s16>) = G_FMINNUM_IEEE [[COPY]], [[COPY1]]
+    ; GFX9: S_ENDPGM 0, implicit [[FMINNUM_IEEE]](<2 x s16>)
+    %0:vgpr(<2 x s16>) = COPY $vgpr0
+    %1:vgpr(<2 x s16>) = COPY $vgpr1
+    %2:vgpr(<2 x s16>) = G_FMINNUM_IEEE %0, %1
+    S_ENDPGM 0, implicit %2
+...
+
+---
+name: fminnum_ieee_f16_v_fneg_v
+legalized: true
+regBankSelected: true
+
+body: |
+  bb.0:
+    liveins: $vgpr0, $vgpr1
+    ; GFX7-LABEL: name: fminnum_ieee_f16_v_fneg_v
+    ; GFX7: [[COPY:%[0-9]+]]:vgpr(s32) = COPY $vgpr0
+    ; GFX7: [[COPY1:%[0-9]+]]:vgpr(s32) = COPY $vgpr1
+    ; GFX7: [[TRUNC:%[0-9]+]]:vgpr(s16) = G_TRUNC [[COPY]](s32)
+    ; GFX7: [[TRUNC1:%[0-9]+]]:vgpr(s16) = G_TRUNC [[COPY1]](s32)
+    ; GFX7: [[FNEG:%[0-9]+]]:vgpr(s16) = G_FNEG [[TRUNC1]]
+    ; GFX7: [[FMINNUM_IEEE:%[0-9]+]]:vgpr(s16) = G_FMINNUM_IEEE [[TRUNC]], [[FNEG]]
+    ; GFX7: S_ENDPGM 0, implicit [[FMINNUM_IEEE]](s16)
+    ; GFX8-LABEL: name: fminnum_ieee_f16_v_fneg_v
+    ; GFX8: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX8: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX8: [[V_MIN_F16_e64_:%[0-9]+]]:vgpr_32 = V_MIN_F16_e64 0, [[COPY]], 1, [[COPY1]], 0, 0, implicit $exec
+    ; GFX8: S_ENDPGM 0, implicit [[V_MIN_F16_e64_]]
+    ; GFX9-LABEL: name: fminnum_ieee_f16_v_fneg_v
+    ; GFX9: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX9: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX9: [[V_MIN_F16_e64_:%[0-9]+]]:vgpr_32 = V_MIN_F16_e64 0, [[COPY]], 1, [[COPY1]], 0, 0, implicit $exec
+    ; GFX9: S_ENDPGM 0, implicit [[V_MIN_F16_e64_]]
+    %0:vgpr(s32) = COPY $vgpr0
+    %1:vgpr(s32) = COPY $vgpr1
+    %2:vgpr(s16) = G_TRUNC %0
+    %3:vgpr(s16) = G_TRUNC %1
+    %4:vgpr(s16) = G_FNEG %3
+    %5:vgpr(s16) = G_FMINNUM_IEEE %2, %4
+    S_ENDPGM 0, implicit %5
+...

test/CodeGen/AMDGPU/GlobalISel/inst-select-fminnum.mir

+# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
+# RUN: llc -march=amdgcn -mcpu=hawaii -run-pass=instruction-select -verify-machineinstrs -global-isel-abort=0 -o - %s  | FileCheck -check-prefix=GFX7 %s
+# RUN: llc -march=amdgcn -mcpu=fiji -run-pass=instruction-select -verify-machineinstrs -global-isel-abort=0 -o - %s  | FileCheck -check-prefix=GFX8 %s
+# RUN: llc -march=amdgcn -mcpu=gfx900 -run-pass=instruction-select -verify-machineinstrs -global-isel-abort=0 -o - %s  | FileCheck -check-prefix=GFX9 %s
+
+# FIXME: Ideally this would fail to select with ieee mode enabled.
+---
+
+name: fminnum_f32_f64_ieee_mode_on
+legalized:       true
+regBankSelected: true
+machineFunctionInfo:
+  mode:
+    ieee: true
+
+body: |
+  bb.0:
+    liveins: $sgpr0, $vgpr0, $vgpr1, $vgpr3_vgpr4, $sgpr10_sgpr11, $vgpr10_vgpr11, $vgpr12_vgpr13
+    ; GFX7-LABEL: name: fminnum_f32_f64_ieee_mode_on
+    ; GFX7: [[COPY:%[0-9]+]]:sreg_32_xm0 = COPY $sgpr0
+    ; GFX7: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX7: [[COPY2:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX7: [[COPY3:%[0-9]+]]:vreg_64 = COPY $vgpr3_vgpr4
+    ; GFX7: [[COPY4:%[0-9]+]]:sreg_64_xexec = COPY $sgpr10_sgpr11
+    ; GFX7: [[COPY5:%[0-9]+]]:vreg_64 = COPY $vgpr10_vgpr11
+    ; GFX7: [[COPY6:%[0-9]+]]:vreg_64 = COPY $vgpr12_vgpr13
+    ; GFX7: [[V_MIN_F32_e64_:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY1]], 0, [[COPY]], 0, 0, implicit $exec
+    ; GFX7: [[V_MIN_F32_e64_1:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY]], 0, [[COPY1]], 0, 0, implicit $exec
+    ; GFX7: [[V_MIN_F32_e64_2:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY1]], 0, [[COPY2]], 0, 0, implicit $exec
+    ; GFX7: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX7: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_1]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX7: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_2]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX7: [[V_MIN_F64_:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY4]], 0, [[COPY5]], 0, 0, implicit $exec
+    ; GFX7: [[V_MIN_F64_1:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY5]], 0, [[COPY4]], 0, 0, implicit $exec
+    ; GFX7: [[V_MIN_F64_2:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY5]], 0, [[COPY6]], 0, 0, implicit $exec
+    ; GFX7: S_ENDPGM 0, implicit [[V_MIN_F64_]], implicit [[V_MIN_F64_1]], implicit [[V_MIN_F64_2]]
+    ; GFX8-LABEL: name: fminnum_f32_f64_ieee_mode_on
+    ; GFX8: [[COPY:%[0-9]+]]:sreg_32_xm0 = COPY $sgpr0
+    ; GFX8: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX8: [[COPY2:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX8: [[COPY3:%[0-9]+]]:vreg_64 = COPY $vgpr3_vgpr4
+    ; GFX8: [[COPY4:%[0-9]+]]:sreg_64_xexec = COPY $sgpr10_sgpr11
+    ; GFX8: [[COPY5:%[0-9]+]]:vreg_64 = COPY $vgpr10_vgpr11
+    ; GFX8: [[COPY6:%[0-9]+]]:vreg_64 = COPY $vgpr12_vgpr13
+    ; GFX8: [[V_MIN_F32_e64_:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY1]], 0, [[COPY]], 0, 0, implicit $exec
+    ; GFX8: [[V_MIN_F32_e64_1:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY]], 0, [[COPY1]], 0, 0, implicit $exec
+    ; GFX8: [[V_MIN_F32_e64_2:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY1]], 0, [[COPY2]], 0, 0, implicit $exec
+    ; GFX8: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX8: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_1]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX8: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_2]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX8: [[V_MIN_F64_:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY4]], 0, [[COPY5]], 0, 0, implicit $exec
+    ; GFX8: [[V_MIN_F64_1:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY5]], 0, [[COPY4]], 0, 0, implicit $exec
+    ; GFX8: [[V_MIN_F64_2:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY5]], 0, [[COPY6]], 0, 0, implicit $exec
+    ; GFX8: S_ENDPGM 0, implicit [[V_MIN_F64_]], implicit [[V_MIN_F64_1]], implicit [[V_MIN_F64_2]]
+    ; GFX9-LABEL: name: fminnum_f32_f64_ieee_mode_on
+    ; GFX9: [[COPY:%[0-9]+]]:sreg_32_xm0 = COPY $sgpr0
+    ; GFX9: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX9: [[COPY2:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX9: [[COPY3:%[0-9]+]]:vreg_64 = COPY $vgpr3_vgpr4
+    ; GFX9: [[COPY4:%[0-9]+]]:sreg_64_xexec = COPY $sgpr10_sgpr11
+    ; GFX9: [[COPY5:%[0-9]+]]:vreg_64 = COPY $vgpr10_vgpr11
+    ; GFX9: [[COPY6:%[0-9]+]]:vreg_64 = COPY $vgpr12_vgpr13
+    ; GFX9: [[V_MIN_F32_e64_:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY1]], 0, [[COPY]], 0, 0, implicit $exec
+    ; GFX9: [[V_MIN_F32_e64_1:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY]], 0, [[COPY1]], 0, 0, implicit $exec
+    ; GFX9: [[V_MIN_F32_e64_2:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY1]], 0, [[COPY2]], 0, 0, implicit $exec
+    ; GFX9: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX9: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_1]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX9: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_2]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX9: [[V_MIN_F64_:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY4]], 0, [[COPY5]], 0, 0, implicit $exec
+    ; GFX9: [[V_MIN_F64_1:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY5]], 0, [[COPY4]], 0, 0, implicit $exec
+    ; GFX9: [[V_MIN_F64_2:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY5]], 0, [[COPY6]], 0, 0, implicit $exec
+    ; GFX9: S_ENDPGM 0, implicit [[V_MIN_F64_]], implicit [[V_MIN_F64_1]], implicit [[V_MIN_F64_2]]
+    %0:sgpr(s32) = COPY $sgpr0
+    %1:vgpr(s32) = COPY $vgpr0
+    %2:vgpr(s32) = COPY $vgpr1
+    %3:vgpr(p1) = COPY $vgpr3_vgpr4
+
+    %10:sgpr(s64) = COPY $sgpr10_sgpr11
+    %11:vgpr(s64) = COPY $vgpr10_vgpr11
+    %12:vgpr(s64) = COPY $vgpr12_vgpr13
+
+    ; minnum vs
+    %4:vgpr(s32) = G_FMINNUM %1, %0
+
+    ; minnum sv
+    %5:vgpr(s32) = G_FMINNUM %0, %1
+
+    ; minnum vv
+    %6:vgpr(s32) = G_FMINNUM %1, %2
+
+    G_STORE %4, %3 :: (store 4, addrspace 1)
+    G_STORE %5, %3 :: (store 4, addrspace 1)
+    G_STORE %6, %3 :: (store 4, addrspace 1)
+
+    ; 64-bit
+
+    ; minnum vs
+    %14:vgpr(s64) = G_FMINNUM %10, %11
+
+    ; minnum sv
+    %15:vgpr(s64) = G_FMINNUM %11, %10
+
+    ; minnum vv
+    %16:vgpr(s64) = G_FMINNUM %11, %12
+
+    S_ENDPGM 0, implicit %14, implicit %15, implicit %16
+...
+
+---
+
+name: fminnum_f32_f64_ieee_mode_off
+legalized:       true
+regBankSelected: true
+machineFunctionInfo:
+  mode:
+    ieee: false
+
+body: |
+  bb.0:
+    liveins: $sgpr0, $vgpr0, $vgpr1, $vgpr3_vgpr4, $sgpr10_sgpr11, $vgpr10_vgpr11, $vgpr12_vgpr13
+    ; GFX7-LABEL: name: fminnum_f32_f64_ieee_mode_off
+    ; GFX7: [[COPY:%[0-9]+]]:sreg_32_xm0 = COPY $sgpr0
+    ; GFX7: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX7: [[COPY2:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX7: [[COPY3:%[0-9]+]]:vreg_64 = COPY $vgpr3_vgpr4
+    ; GFX7: [[COPY4:%[0-9]+]]:sreg_64_xexec = COPY $sgpr10_sgpr11
+    ; GFX7: [[COPY5:%[0-9]+]]:vreg_64 = COPY $vgpr10_vgpr11
+    ; GFX7: [[COPY6:%[0-9]+]]:vreg_64 = COPY $vgpr12_vgpr13
+    ; GFX7: [[V_MIN_F32_e64_:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY1]], 0, [[COPY]], 0, 0, implicit $exec
+    ; GFX7: [[V_MIN_F32_e64_1:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY]], 0, [[COPY1]], 0, 0, implicit $exec
+    ; GFX7: [[V_MIN_F32_e64_2:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY1]], 0, [[COPY2]], 0, 0, implicit $exec
+    ; GFX7: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX7: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_1]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX7: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_2]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX7: [[V_MIN_F64_:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY4]], 0, [[COPY5]], 0, 0, implicit $exec
+    ; GFX7: [[V_MIN_F64_1:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY5]], 0, [[COPY4]], 0, 0, implicit $exec
+    ; GFX7: [[V_MIN_F64_2:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY5]], 0, [[COPY6]], 0, 0, implicit $exec
+    ; GFX7: S_ENDPGM 0, implicit [[V_MIN_F64_]], implicit [[V_MIN_F64_1]], implicit [[V_MIN_F64_2]]
+    ; GFX8-LABEL: name: fminnum_f32_f64_ieee_mode_off
+    ; GFX8: [[COPY:%[0-9]+]]:sreg_32_xm0 = COPY $sgpr0
+    ; GFX8: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX8: [[COPY2:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX8: [[COPY3:%[0-9]+]]:vreg_64 = COPY $vgpr3_vgpr4
+    ; GFX8: [[COPY4:%[0-9]+]]:sreg_64_xexec = COPY $sgpr10_sgpr11
+    ; GFX8: [[COPY5:%[0-9]+]]:vreg_64 = COPY $vgpr10_vgpr11
+    ; GFX8: [[COPY6:%[0-9]+]]:vreg_64 = COPY $vgpr12_vgpr13
+    ; GFX8: [[V_MIN_F32_e64_:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY1]], 0, [[COPY]], 0, 0, implicit $exec
+    ; GFX8: [[V_MIN_F32_e64_1:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY]], 0, [[COPY1]], 0, 0, implicit $exec
+    ; GFX8: [[V_MIN_F32_e64_2:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY1]], 0, [[COPY2]], 0, 0, implicit $exec
+    ; GFX8: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX8: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_1]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX8: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_2]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX8: [[V_MIN_F64_:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY4]], 0, [[COPY5]], 0, 0, implicit $exec
+    ; GFX8: [[V_MIN_F64_1:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY5]], 0, [[COPY4]], 0, 0, implicit $exec
+    ; GFX8: [[V_MIN_F64_2:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY5]], 0, [[COPY6]], 0, 0, implicit $exec
+    ; GFX8: S_ENDPGM 0, implicit [[V_MIN_F64_]], implicit [[V_MIN_F64_1]], implicit [[V_MIN_F64_2]]
+    ; GFX9-LABEL: name: fminnum_f32_f64_ieee_mode_off
+    ; GFX9: [[COPY:%[0-9]+]]:sreg_32_xm0 = COPY $sgpr0
+    ; GFX9: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX9: [[COPY2:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX9: [[COPY3:%[0-9]+]]:vreg_64 = COPY $vgpr3_vgpr4
+    ; GFX9: [[COPY4:%[0-9]+]]:sreg_64_xexec = COPY $sgpr10_sgpr11
+    ; GFX9: [[COPY5:%[0-9]+]]:vreg_64 = COPY $vgpr10_vgpr11
+    ; GFX9: [[COPY6:%[0-9]+]]:vreg_64 = COPY $vgpr12_vgpr13
+    ; GFX9: [[V_MIN_F32_e64_:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY1]], 0, [[COPY]], 0, 0, implicit $exec
+    ; GFX9: [[V_MIN_F32_e64_1:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY]], 0, [[COPY1]], 0, 0, implicit $exec
+    ; GFX9: [[V_MIN_F32_e64_2:%[0-9]+]]:vgpr_32 = V_MIN_F32_e64 0, [[COPY1]], 0, [[COPY2]], 0, 0, implicit $exec
+    ; GFX9: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX9: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_1]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX9: FLAT_STORE_DWORD [[COPY3]], [[V_MIN_F32_e64_2]], 0, 0, 0, 0, implicit $exec, implicit $flat_scr
+    ; GFX9: [[V_MIN_F64_:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY4]], 0, [[COPY5]], 0, 0, implicit $exec
+    ; GFX9: [[V_MIN_F64_1:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY5]], 0, [[COPY4]], 0, 0, implicit $exec
+    ; GFX9: [[V_MIN_F64_2:%[0-9]+]]:vreg_64 = V_MIN_F64 0, [[COPY5]], 0, [[COPY6]], 0, 0, implicit $exec
+    ; GFX9: S_ENDPGM 0, implicit [[V_MIN_F64_]], implicit [[V_MIN_F64_1]], implicit [[V_MIN_F64_2]]
+    %0:sgpr(s32) = COPY $sgpr0
+    %1:vgpr(s32) = COPY $vgpr0
+    %2:vgpr(s32) = COPY $vgpr1
+    %3:vgpr(p1) = COPY $vgpr3_vgpr4
+
+    %10:sgpr(s64) = COPY $sgpr10_sgpr11
+    %11:vgpr(s64) = COPY $vgpr10_vgpr11
+    %12:vgpr(s64) = COPY $vgpr12_vgpr13
+
+    ; minnum vs
+    %4:vgpr(s32) = G_FMINNUM %1, %0
+
+    ; minnum sv
+    %5:vgpr(s32) = G_FMINNUM %0, %1
+
+    ; minnum vv
+    %6:vgpr(s32) = G_FMINNUM %1, %2
+
+    G_STORE %4, %3 :: (store 4, addrspace 1)
+    G_STORE %5, %3 :: (store 4, addrspace 1)
+    G_STORE %6, %3 :: (store 4, addrspace 1)
+
+    ; 64-bit
+
+    ; minnum vs
+    %14:vgpr(s64) = G_FMINNUM %10, %11
+
+    ; minnum sv
+    %15:vgpr(s64) = G_FMINNUM %11, %10
+
+    ; minnum vv
+    %16:vgpr(s64) = G_FMINNUM %11, %12
+
+    S_ENDPGM 0, implicit %14, implicit %15, implicit %16
+...
+
+---
+name: fminnum_f16_vv
+legalized: true
+regBankSelected: true
+
+body: |
+  bb.0:
+    liveins: $vgpr0, $vgpr1
+    ; GFX7-LABEL: name: fminnum_f16_vv
+    ; GFX7: [[COPY:%[0-9]+]]:vgpr(s32) = COPY $vgpr0
+    ; GFX7: [[COPY1:%[0-9]+]]:vgpr(s32) = COPY $vgpr1
+    ; GFX7: [[TRUNC:%[0-9]+]]:vgpr(s16) = G_TRUNC [[COPY]](s32)
+    ; GFX7: [[TRUNC1:%[0-9]+]]:vgpr(s16) = G_TRUNC [[COPY1]](s32)
+    ; GFX7: [[FMINNUM:%[0-9]+]]:vgpr(s16) = G_FMINNUM [[TRUNC]], [[TRUNC1]]
+    ; GFX7: S_ENDPGM 0, implicit [[FMINNUM]](s16)
+    ; GFX8-LABEL: name: fminnum_f16_vv
+    ; GFX8: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX8: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX8: [[V_MIN_F16_e64_:%[0-9]+]]:vgpr_32 = V_MIN_F16_e64 0, [[COPY]], 0, [[COPY1]], 0, 0, implicit $exec
+    ; GFX8: S_ENDPGM 0, implicit [[V_MIN_F16_e64_]]
+    ; GFX9-LABEL: name: fminnum_f16_vv
+    ; GFX9: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX9: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX9: [[V_MIN_F16_e64_:%[0-9]+]]:vgpr_32 = V_MIN_F16_e64 0, [[COPY]], 0, [[COPY1]], 0, 0, implicit $exec
+    ; GFX9: S_ENDPGM 0, implicit [[V_MIN_F16_e64_]]
+    %0:vgpr(s32) = COPY $vgpr0
+    %1:vgpr(s32) = COPY $vgpr1
+    %2:vgpr(s16) = G_TRUNC %0
+    %3:vgpr(s16) = G_TRUNC %1
+    %4:vgpr(s16) = G_FMINNUM %2, %3
+    S_ENDPGM 0, implicit %4
+...
+
+---
+name: fminnum_v2f16_vv
+legalized: true
+regBankSelected: true
+
+body: |
+  bb.0:
+    liveins: $sgpr0, $sgpr1
+
+    ; GFX7-LABEL: name: fminnum_v2f16_vv
+    ; GFX7: [[COPY:%[0-9]+]]:vgpr(<2 x s16>) = COPY $vgpr0
+    ; GFX7: [[COPY1:%[0-9]+]]:vgpr(<2 x s16>) = COPY $vgpr1
+    ; GFX7: [[FMINNUM:%[0-9]+]]:vgpr(<2 x s16>) = G_FMINNUM [[COPY]], [[COPY1]]
+    ; GFX7: S_ENDPGM 0, implicit [[FMINNUM]](<2 x s16>)
+    ; GFX8-LABEL: name: fminnum_v2f16_vv
+    ; GFX8: [[COPY:%[0-9]+]]:vgpr(<2 x s16>) = COPY $vgpr0
+    ; GFX8: [[COPY1:%[0-9]+]]:vgpr(<2 x s16>) = COPY $vgpr1
+    ; GFX8: [[FMINNUM:%[0-9]+]]:vgpr(<2 x s16>) = G_FMINNUM [[COPY]], [[COPY1]]
+    ; GFX8: S_ENDPGM 0, implicit [[FMINNUM]](<2 x s16>)
+    ; GFX9-LABEL: name: fminnum_v2f16_vv
+    ; GFX9: [[COPY:%[0-9]+]]:vgpr(<2 x s16>) = COPY $vgpr0
+    ; GFX9: [[COPY1:%[0-9]+]]:vgpr(<2 x s16>) = COPY $vgpr1
+    ; GFX9: [[FMINNUM:%[0-9]+]]:vgpr(<2 x s16>) = G_FMINNUM [[COPY]], [[COPY1]]
+    ; GFX9: S_ENDPGM 0, implicit [[FMINNUM]](<2 x s16>)
+    %0:vgpr(<2 x s16>) = COPY $vgpr0
+    %1:vgpr(<2 x s16>) = COPY $vgpr1
+    %2:vgpr(<2 x s16>) = G_FMINNUM %0, %1
+    S_ENDPGM 0, implicit %2
+...
+
+---
+name: fminnum_f16_v_fneg_v
+legalized: true
+regBankSelected: true
+
+body: |
+  bb.0:
+    liveins: $vgpr0, $vgpr1
+    ; GFX7-LABEL: name: fminnum_f16_v_fneg_v
+    ; GFX7: [[COPY:%[0-9]+]]:vgpr(s32) = COPY $vgpr0
+    ; GFX7: [[COPY1:%[0-9]+]]:vgpr(s32) = COPY $vgpr1
+    ; GFX7: [[TRUNC:%[0-9]+]]:vgpr(s16) = G_TRUNC [[COPY]](s32)
+    ; GFX7: [[TRUNC1:%[0-9]+]]:vgpr(s16) = G_TRUNC [[COPY1]](s32)
+    ; GFX7: [[FNEG:%[0-9]+]]:vgpr(s16) = G_FNEG [[TRUNC1]]
+    ; GFX7: [[FMINNUM:%[0-9]+]]:vgpr(s16) = G_FMINNUM [[TRUNC]], [[FNEG]]
+    ; GFX7: S_ENDPGM 0, implicit [[FMINNUM]](s16)
+    ; GFX8-LABEL: name: fminnum_f16_v_fneg_v
+    ; GFX8: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX8: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX8: [[V_MIN_F16_e64_:%[0-9]+]]:vgpr_32 = V_MIN_F16_e64 0, [[COPY]], 1, [[COPY1]], 0, 0, implicit $exec
+    ; GFX8: S_ENDPGM 0, implicit [[V_MIN_F16_e64_]]
+    ; GFX9-LABEL: name: fminnum_f16_v_fneg_v
+    ; GFX9: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
+    ; GFX9: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
+    ; GFX9: [[V_MIN_F16_e64_:%[0-9]+]]:vgpr_32 = V_MIN_F16_e64 0, [[COPY]], 1, [[COPY1]], 0, 0, implicit $exec
+    ; GFX9: S_ENDPGM 0, implicit [[V_MIN_F16_e64_]]
+    %0:vgpr(s32) = COPY $vgpr0
+    %1:vgpr(s32) = COPY $vgpr1
+    %2:vgpr(s16) = G_TRUNC %0
+    %3:vgpr(s16) = G_TRUNC %1
+    %4:vgpr(s16) = G_FNEG %3
+    %5:vgpr(s16) = G_FMINNUM %2, %4
+    S_ENDPGM 0, implicit %5
+...

test/CodeGen/AMDGPU/GlobalISel/inst-select-maxnum.mir

-# RUN: llc -march=amdgcn -mcpu=hawaii -run-pass=instruction-select -verify-machineinstrs -o - %s | FileCheck %s -check-prefixes=GCN
-
----
-
-name:            maxnum
-legalized:       true
-regBankSelected: true
-
-# GCN-LABEL: name: maxnum
-body: |
-  bb.0:
-    liveins: $sgpr0, $vgpr0, $vgpr1, $vgpr3_vgpr4, $sgpr10_sgpr11, $vgpr10_vgpr11, $vgpr12_vgpr13
-    ; GCN: [[SGPR0:%[0-9]+]]:sreg_32_xm0 = COPY $sgpr0
-    ; GCN: [[VGPR0:%[0-9]+]]:vgpr_32 = COPY $vgpr0
-    ; GCN: [[VGPR1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
-    %0:sgpr(s32) = COPY $sgpr0
-    %1:vgpr(s32) = COPY $vgpr0
-    %2:vgpr(s32) = COPY $vgpr1
-    %3:vgpr(p1) = COPY $vgpr3_vgpr4
-
-    ; GCN: [[SGPR64_0:%[0-9]+]]:sreg_64_xexec = COPY $sgpr10_sgpr11
-    ; GCN: [[VGPR64_0:%[0-9]+]]:vreg_64 = COPY $vgpr10_vgpr11
-    ; GCN: [[VGPR64_1:%[0-9]+]]:vreg_64 = COPY $vgpr12_vgpr13
-    %10:sgpr(s64) = COPY $sgpr10_sgpr11
-    %11:vgpr(s64) = COPY $vgpr10_vgpr11
-    %12:vgpr(s64) = COPY $vgpr12_vgpr13
-
-    ; maxnum vs
-    ; GCN: V_MAX_F32_e32 [[SGPR0]], [[VGPR0]]
-    %4:vgpr(s32) = G_INTRINSIC intrinsic(@llvm.maxnum.f32), %1, %0
-
-    ; maxnum sv
-    ; GCN: V_MAX_F32_e32 [[SGPR0]], [[VGPR0]]
-    %5:vgpr(s32) = G_INTRINSIC intrinsic(@llvm.maxnum.f32), %0, %1
-
-    ; maxnum vv
-    ; GCN: V_MAX_F32_e32 [[VGPR0]], [[VGPR1]]
-    %6:vgpr(s32) = G_INTRINSIC intrinsic(@llvm.maxnum.f32), %1, %2
-
-    G_STORE %4, %3 :: (store 4, addrspace 1)
-    G_STORE %5, %3 :: (store 4, addrspace 1)
-    G_STORE %6, %3 :: (store 4, addrspace 1)
-
-    ; 64-bit
-
-    ; maxnum vs
-    ; GCN: V_MAX_F64 0, [[SGPR64_0]], 0, [[VGPR64_0]], 0, 0
-    %14:vgpr(s64) = G_INTRINSIC intrinsic(@llvm.maxnum.f64), %10, %11
-
-    ; maxnum sv
-    ; GCN: V_MAX_F64 0, [[VGPR64_0]], 0, [[SGPR64_0]], 0, 0
-    %15:vgpr(s64) = G_INTRINSIC intrinsic(@llvm.maxnum.f64), %11, %10
-
-    ; maxnum vv
-    ; GCN: V_MAX_F64 0, [[VGPR64_0]], 0, [[VGPR64_1]], 0, 0
-    %16:vgpr(s64) = G_INTRINSIC intrinsic(@llvm.maxnum.f64), %11, %12
-
-    S_ENDPGM 0, implicit %14, implicit %15, implicit %16
-
-...

test/CodeGen/AMDGPU/GlobalISel/inst-select-minnum.mir

-# RUN: llc -march=amdgcn -mcpu=hawaii -run-pass=instruction-select -verify-machineinstrs -o - %s  | FileCheck %s -check-prefixes=GCN
-
----
-
-name:            minnum
-legalized:       true
-regBankSelected: true
-
-# GCN-LABEL: name: minnum
-body: |
-  bb.0:
-    liveins: $sgpr0, $vgpr0, $vgpr1, $vgpr3_vgpr4, $sgpr10_sgpr11, $vgpr10_vgpr11, $vgpr12_vgpr13
-    ; GCN: [[SGPR0:%[0-9]+]]:sreg_32_xm0 = COPY $sgpr0
-    ; GCN: [[VGPR0:%[0-9]+]]:vgpr_32 = COPY $vgpr0
-    ; GCN: [[VGPR1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
-    %0:sgpr(s32) = COPY $sgpr0
-    %1:vgpr(s32) = COPY $vgpr0
-    %2:vgpr(s32) = COPY $vgpr1
-    %3:vgpr(p1) = COPY $vgpr3_vgpr4
-
-    ; GCN: [[SGPR64_0:%[0-9]+]]:sreg_64_xexec = COPY $sgpr10_sgpr11
-    ; GCN: [[VGPR64_0:%[0-9]+]]:vreg_64 = COPY $vgpr10_vgpr11
-    ; GCN: [[VGPR64_1:%[0-9]+]]:vreg_64 = COPY $vgpr12_vgpr13
-    %10:sgpr(s64) = COPY $sgpr10_sgpr11
-    %11:vgpr(s64) = COPY $vgpr10_vgpr11
-    %12:vgpr(s64) = COPY $vgpr12_vgpr13
-
-    ; minnum vs
-    ; GCN: V_MIN_F32_e32 [[SGPR0]], [[VGPR0]]
-    %4:vgpr(s32) = G_INTRINSIC intrinsic(@llvm.minnum.f32), %1, %0
-
-    ; minnum sv
-    ; GCN: V_MIN_F32_e32 [[SGPR0]], [[VGPR0]]
-    %5:vgpr(s32) = G_INTRINSIC intrinsic(@llvm.minnum.f32), %0, %1
-
-    ; minnum vv
-    ; GCN: V_MIN_F32_e32 [[VGPR0]], [[VGPR1]]
-    %6:vgpr(s32) = G_INTRINSIC intrinsic(@llvm.minnum.f32), %1, %2
-
-    G_STORE %4, %3 :: (store 4, addrspace 1)
-    G_STORE %5, %3 :: (store 4, addrspace 1)
-    G_STORE %6, %3 :: (store 4, addrspace 1)
-
-    ; 64-bit
-
-    ; minnum vs
-    ; GCN: V_MIN_F64 0, [[SGPR64_0]], 0, [[VGPR64_0]], 0, 0
-    %14:vgpr(s64) = G_INTRINSIC intrinsic(@llvm.minnum.f64), %10, %11
-
-    ; minnum sv
-    ; GCN: V_MIN_F64 0, [[VGPR64_0]], 0, [[SGPR64_0]], 0, 0
-    %15:vgpr(s64) = G_INTRINSIC intrinsic(@llvm.minnum.f64), %11, %10
-
-    ; minnum vv
-    ; GCN: V_MIN_F64 0, [[VGPR64_0]], 0, [[VGPR64_1]], 0, 0
-    %16:vgpr(s64) = G_INTRINSIC intrinsic(@llvm.minnum.f64), %11, %12
-
-    S_ENDPGM 0, implicit %14, implicit %15, implicit %16
-...