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+ RiscV: AndiAddwi02Andi optimization

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florian 2024-09-24 22:33:53 +02:00
parent 7c023d33d0
commit 2123c59941
1 changed files with 34 additions and 13 deletions

47
compiler/riscv/aoptcpurv.pas
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@ -380,23 +380,44 @@ implementation
}
if (taicpu(p).ops=3) and
(taicpu(p).oper[2]^.typ=top_const) and
GetNextInstructionUsingReg(p, hp1, taicpu(p).oper[0]^.reg) and
MatchInstruction(hp1,A_ANDI) and
(taicpu(hp1).ops=3) and
MatchOperand(taicpu(p).oper[0]^,taicpu(hp1).oper[1]^) and
(taicpu(hp1).oper[2]^.typ=top_const) and
is_imm12(taicpu(p).oper[2]^.val and taicpu(hp1).oper[2]^.val) and
(not RegModifiedBetween(taicpu(p).oper[1]^.reg, p,hp1)) and
RegEndOfLife(taicpu(p).oper[0]^.reg, taicpu(hp1)) then
GetNextInstructionUsingReg(p, hp1, taicpu(p).oper[0]^.reg) then
begin
taicpu(hp1).loadreg(1,taicpu(p).oper[1]^.reg);
taicpu(hp1).loadconst(2, taicpu(p).oper[2]^.val and taicpu(hp1).oper[2]^.val);
if MatchInstruction(hp1,A_ANDI) and
(taicpu(hp1).ops=3) and
MatchOperand(taicpu(p).oper[0]^,taicpu(hp1).oper[1]^) and
(taicpu(hp1).oper[2]^.typ=top_const) and
is_imm12(taicpu(p).oper[2]^.val and taicpu(hp1).oper[2]^.val) and
(not RegModifiedBetween(taicpu(p).oper[1]^.reg, p,hp1)) and
RegEndOfLife(taicpu(p).oper[0]^.reg, taicpu(hp1)) then
begin
taicpu(hp1).loadreg(1,taicpu(p).oper[1]^.reg);
taicpu(hp1).loadconst(2, taicpu(p).oper[2]^.val and taicpu(hp1).oper[2]^.val);
DebugMsg('Peephole AndiAndi2Andi performed', hp1);
DebugMsg('Peephole AndiAndi2Andi performed', hp1);
RemoveInstr(p);
RemoveInstr(p);
result:=true;
result:=true;
end
else if MatchInstruction(hp1,A_ADDIW) and
(taicpu(hp1).ops=3) and
MatchOperand(taicpu(p).oper[0]^,taicpu(hp1).oper[1]^) and
(taicpu(hp1).oper[2]^.typ=top_const) and
(taicpu(hp1).oper[2]^.val=0) and
is_imm12(taicpu(p).oper[2]^.val) and
(not RegModifiedBetween(taicpu(p).oper[1]^.reg, p,hp1)) and
RegEndOfLife(taicpu(p).oper[0]^.reg, taicpu(hp1)) then
begin
taicpu(p).loadreg(0,taicpu(hp1).oper[0]^.reg);
DebugMsg('Peephole AndiAddwi02Andi performed', hp1);
RemoveInstr(hp1);
result:=true;
end
else
result:=OptPass1OP(p);
end
else
result:=OptPass1OP(p);