[AMDGPU] Factor out predicate FmaakFmamkF32Insts

[kzhuravl]

LGTM

llvm/lib/Target/AMDGPU/AMDGPU.td

def HasDPP8 : Predicate<"Subtarget->hasDPP8()">,
   AssemblerPredicate<(all_of (not FeatureGCN3Encoding), FeatureGFX10Insts, FeatureDPP8)>;
 
 def Has64BitDPP : Predicate<"Subtarget->has64BitDPP()">,
   AssemblerPredicate<(all_of Feature64BitDPP)>;
 
 def HasPackedFP32Ops : Predicate<"Subtarget->hasPackedFP32Ops()">,
   AssemblerPredicate<(all_of FeaturePackedFP32Ops)>;
 
+def HasFmaakFmamkF32Insts :
+  Predicate<"Subtarget->hasFmaakFmamkF32Insts()">,
+  AssemblerPredicate<(any_of FeatureGFX10Insts)>;
+
 def HasExtendedImageInsts : Predicate<"Subtarget->hasExtendedImageInsts()">,
   AssemblerPredicate<(all_of FeatureExtendedImageInsts)>;
 
 def HasR128A16 : Predicate<"Subtarget->hasR128A16()">,
   AssemblerPredicate<(all_of FeatureR128A16)>;
 
 def HasGFX10A16 : Predicate<"Subtarget->hasGFX10A16()">,
   AssemblerPredicate<(all_of FeatureGFX10A16)>;

llvm/lib/Target/AMDGPU/GCNSubtarget.h

public:
   bool has64BitDPP() const {
     return Has64BitDPP;
   }
 
   bool hasPackedFP32Ops() const {
     return HasPackedFP32Ops;
   }
 
+  bool hasFmaakFmamkF32Insts() const {
+    return getGeneration() >= GFX10;
+  }
+
   bool hasExtendedImageInsts() const {
     return HasExtendedImageInsts;
   }
 
   bool hasR128A16() const {
     return HasR128A16;
   }
 

llvm/lib/Target/AMDGPU/VOP2Instructions.td

let AddedComplexity = 30 in {
   def : GCNPat<
     (i32 (int_amdgcn_sdot8 i32:$src0, i32:$src1, i32:$src2, (i1 DSTCLAMP.NONE))),
     (i32 (V_DOT8C_I32_I4_e32 $src0, $src1, $src2))
   > {
     let SubtargetPredicate = HasDot3Insts;
   }
 } // End AddedComplexity = 30
 
+let SubtargetPredicate = HasFmaakFmamkF32Insts in {
+def V_FMAMK_F32 : VOP2_Pseudo<"v_fmamk_f32", VOP_MADMK_F32, [], "">;
+
+let isCommutable = 1 in
+def V_FMAAK_F32 : VOP2_Pseudo<"v_fmaak_f32", VOP_MADAK_F32, [], "">;
+}
+
 let SubtargetPredicate = isGFX10Plus in {
 
-def V_FMAMK_F32 : VOP2_Pseudo<"v_fmamk_f32", VOP_MADMK_F32, [], "">;
-let FPDPRounding = 1 in
+let FPDPRounding = 1 in {
 def V_FMAMK_F16 : VOP2_Pseudo <"v_fmamk_f16", VOP_MADMK_F16, [], "">;
 
-let isCommutable = 1 in {
-def V_FMAAK_F32 : VOP2_Pseudo<"v_fmaak_f32", VOP_MADAK_F32, [], "">;
-let FPDPRounding = 1 in
+let isCommutable = 1 in
 def V_FMAAK_F16 : VOP2_Pseudo <"v_fmaak_f16", VOP_MADAK_F16, [], "">;
-} // End isCommutable = 1
+} // End FPDPRounding  = 1
 
 let Constraints = "$vdst = $src2",
     DisableEncoding="$src2",
     isConvertibleToThreeAddress = 1,
     isCommutable = 1 in {
 defm V_FMAC_F16 : VOP2Inst <"v_fmac_f16", VOP_MAC_F16>;
 }