* fix RemoveSuperfluousVMov if the VMov destination reg is an integer register, resolved #35978

git-svn-id: trunk@42726 -

compiler/arm/aoptcpu.pas

@@ -26,7 +26,7 @@ Unit aoptcpu;
 {$i fpcdefs.inc}
 
 { $define DEBUG_PREREGSCHEDULER}
-{$define DEBUG_AOPTCPU}
+{ $define DEBUG_AOPTCPU}
 
 Interface
 
@@ -472,7 +472,9 @@ Implementation
       hp1 : tai;
     begin
       Result:=false;
-      if (MatchInstruction(movp, A_VMOV, [taicpu(p).condition], [taicpu(p).oppostfix]) or
+      if ((MatchInstruction(movp, A_VMOV, [taicpu(p).condition], [taicpu(p).oppostfix]) and
+           ((getregtype(taicpu(movp).oper[0]^.reg)=R_MMREGISTER) or (taicpu(p).opcode=A_VLDR))
+          ) or
           (((taicpu(p).oppostfix in [PF_F64F32,PF_F64S16,PF_F64S32,PF_F64U16,PF_F64U32]) or (getsubreg(taicpu(p).oper[0]^.reg)=R_SUBFD)) and MatchInstruction(movp, A_VMOV, [taicpu(p).condition], [PF_F64])) or
           (((taicpu(p).oppostfix in [PF_F32F64,PF_F32S16,PF_F32S32,PF_F32U16,PF_F32U32]) or (getsubreg(taicpu(p).oper[0]^.reg)=R_SUBFS)) and MatchInstruction(movp, A_VMOV, [taicpu(p).condition], [PF_F32]))
          ) and
@@ -519,6 +521,17 @@ Implementation
                   IncludeRegInUsedRegs(taicpu(movp).oper[0]^.reg,UsedRegs);
                 end;
 
+              { change
+                  vldr reg0,[reg1]
+                  vmov reg2,reg0
+                into
+                  ldr reg2,[reg1]
+
+                if reg2 is an int register
+              }
+              if (taicpu(p).opcode=A_VLDR) and (getregtype(taicpu(movp).oper[0]^.reg)=R_INTREGISTER) then
+                taicpu(p).opcode:=A_LDR;
+
               { finally get rid of the mov }
               taicpu(p).loadreg(0,taicpu(movp).oper[0]^.reg);
               asml.remove(movp);