[AMDGPU] Copy impdefs from pseudo to real instructions

[rampitec]

Summary

In some cases we do not copy implicit defs from pseudo to real
VOP instructions. It has no visible impact at the moment thus no
tests are affected or added.

[arsenm]

LGTM

lib/Target/AMDGPU/VOP1Instructions.td

class VOP1_Real <VOP1_Pseudo ps, int EncodingFamily> :
   let SubtargetPredicate = ps.SubtargetPredicate;
   let AsmMatchConverter  = ps.AsmMatchConverter;
   let AsmVariantName     = ps.AsmVariantName;
   let Constraints        = ps.Constraints;
   let DisableEncoding    = ps.DisableEncoding;
   let TSFlags            = ps.TSFlags;
   let UseNamedOperandTable = ps.UseNamedOperandTable;
   let Uses                 = ps.Uses;
+  let Defs                 = ps.Defs;
 }
 
 class VOP1_SDWA_Pseudo <string OpName, VOPProfile P, list<dag> pattern=[]> :
   VOP_SDWA_Pseudo <OpName, P, pattern> {
   let AsmMatchConverter = "cvtSdwaVOP1";
 }
 
 class getVOP1Pat64 <SDPatternOperator node, VOPProfile P> : LetDummies {

lib/Target/AMDGPU/VOP2Instructions.td

class VOP2_Real <VOP2_Pseudo ps, int EncodingFamily> :
   let SubtargetPredicate = ps.SubtargetPredicate;
   let AsmMatchConverter  = ps.AsmMatchConverter;
   let AsmVariantName     = ps.AsmVariantName;
   let Constraints        = ps.Constraints;
   let DisableEncoding    = ps.DisableEncoding;
   let TSFlags            = ps.TSFlags;
   let UseNamedOperandTable = ps.UseNamedOperandTable;
   let Uses                 = ps.Uses;
+  let Defs                 = ps.Defs;
 }
 
 class VOP2_SDWA_Pseudo <string OpName, VOPProfile P, list<dag> pattern=[]> :
   VOP_SDWA_Pseudo <OpName, P, pattern> {
   let AsmMatchConverter = "cvtSdwaVOP2";
 }
 
 class getVOP2Pat64 <SDPatternOperator node, VOPProfile P> : LetDummies {

lib/Target/AMDGPU/VOPCInstructions.td

class VOPC_Real <VOPC_Pseudo ps, int EncodingFamily> :
   // copy relevant pseudo op flags
   let SubtargetPredicate = ps.SubtargetPredicate;
   let AsmMatchConverter  = ps.AsmMatchConverter;
   let Constraints        = ps.Constraints;
   let DisableEncoding    = ps.DisableEncoding;
   let TSFlags            = ps.TSFlags;
   let UseNamedOperandTable = ps.UseNamedOperandTable;
   let Uses                 = ps.Uses;
+  let Defs                 = ps.Defs;
 }
 
 class VOPC_SDWA_Pseudo <string OpName, VOPProfile P, list<dag> pattern=[]> :
   VOP_SDWA_Pseudo <OpName, P, pattern> {
   let AsmMatchConverter = "cvtSdwaVOPC";
 }
 
 // This class is used only with VOPC instructions. Use $sdst for out operand

lib/Target/AMDGPU/VOPInstructions.td

class VOP3_Real <VOP3_Pseudo ps, int EncodingFamily> :
   let SubtargetPredicate = ps.SubtargetPredicate;
   let AsmMatchConverter  = ps.AsmMatchConverter;
   let AsmVariantName     = ps.AsmVariantName;
   let Constraints        = ps.Constraints;
   let DisableEncoding    = ps.DisableEncoding;
   let TSFlags            = ps.TSFlags;
   let UseNamedOperandTable = ps.UseNamedOperandTable;
   let Uses                 = ps.Uses;
+  let Defs                 = ps.Defs;
 
   VOPProfile Pfl = ps.Pfl;
 }
 
 // XXX - Is there any reason to distingusih this from regular VOP3
 // here?
 class VOP3P_Real<VOP3P_Pseudo ps, int EncodingFamily> :
   VOP3_Real<ps, EncodingFamily>;