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Generate better code for && and || with 32-bit operands.

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This commit is contained in:
Stephen Heumann 2024-03-05 17:09:21 -06:00
parent 60b472a99e
commit 8f07ca5d6c
1 changed files with 38 additions and 36 deletions
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74
Gen.pas
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@ -618,7 +618,7 @@ function NeedsCondition (opcode: pcodes): boolean;
begin {NeedsCondition}
NeedsCondition := opcode in
[pc_and,pc_ior,pc_cui,pc_cup,pc_lor,pc_lnd,pc_ldl,pc_lil,pc_lld,
[pc_and,pc_ior,pc_cui,pc_cup,pc_ldl,pc_lil,pc_lld,
pc_lli,pc_gil,pc_gli,pc_gdl,pc_gld,pc_iil,pc_ili,pc_idl,pc_ild,
pc_cop,pc_cpo,pc_cpi,pc_dvi,pc_mpi,pc_adi,pc_sbi,pc_mod,pc_bno,
pc_udi,pc_uim,pc_umi,pc_cnv,pc_rbo,pc_shl,pc_shr,pc_usr,pc_lbf,
@ -5499,10 +5499,11 @@ procedure GenTree {op: icptr};
lab1: integer;
operandIsBoolean: boolean;
begin {GenntNgiNot}
begin {GenBntNgiNot}
if op^.opcode = pc_not then
operandIsBoolean := op^.left^.opcode in
[pc_and,pc_ior,pc_neq,pc_equ,pc_geq,pc_leq,pc_les,pc_grt,pc_not];
[pc_and,pc_ior,pc_lnd,pc_lor,pc_not,pc_neq,pc_equ,pc_geq,pc_leq,
pc_les,pc_grt];
GenTree(op^.left);
case op^.opcode of
pc_bnt:
@ -6510,49 +6511,50 @@ procedure GenTree {op: icptr};
{ Generate code for a pc_lor or pc_lnd }
var
lab1,lab2: integer; {label}
opc: pcodes; {operation code}
procedure DoOra;
{ do some common oring operations to reduce space }
begin {DoOra}
if gLong.where = onStack then begin
GenImplied(m_pla);
GenNative(m_sta_dir, direct, dworkLoc, nil, 0);
GenImplied(m_pla);
end {if}
else
GenNative(m_stx_dir, direct, dworkLoc, nil, 0);
GenNative(m_ora_dir, direct, dworkLoc, nil, 0);
end; {DoOra}
lab1,lab2,lab3,lab4: integer; {labels}
begin {GenLorLnd}
opc := op^.opcode;
lab1 := GenLabel;
lab3 := GenLabel;
lab4 := GenLabel;
gLong.preference := A_X;
GenTree(op^.left);
DoOra;
lab2 := GenLabel;
if opc = pc_lnd then
GenNative(m_bne, relative, lab2, nil, 0)
if glong.where = A_X then
GenImpliedForFlags(m_tay)
else begin
GenNative(m_beq, relative, lab2, nil, 0);
GenNative(m_lda_imm, immediate, 1, nil, 0);
GenImplied(m_plx);
GenImplied(m_pla);
end; {else}
GenNative(m_brl, longrelative, lab1, nil, 0);
GenLab(lab2);
GenNative(m_bne, relative, lab1, nil, 0);
GenImplied(m_txa);
if op^.opcode = pc_lor then begin
lab2 := GenLabel;
GenNative(m_beq, relative, lab2, nil, 0);
GenLab(lab1);
GenNative(m_brl, longrelative, lab3, nil, 0);
GenLab(lab2);
end {if}
else begin
GenNative(m_bne, relative, lab1, nil, 0);
GenNative(m_brl, longrelative, lab4, nil, 0);
GenLab(lab1);
end; {if}
gLong.preference := A_X;
GenTree(op^.right);
DoOra;
GenNative(m_beq, relative, lab1, nil, 0);
if glong.where = A_X then
GenImpliedForFlags(m_tay)
else begin
GenImplied(m_plx);
GenImplied(m_pla);
end; {else}
GenNative(m_bne, relative, lab3, nil, 0);
GenImplied(m_txa);
GenNative(m_beq, relative, lab4, nil, 0);
GenLab(lab3);
GenNative(m_lda_imm, immediate, 1, nil, 0);
GenLab(lab1);
GenLab(lab4);
end; {GenLorLnd}
@ -7729,7 +7731,7 @@ var
localSize := localSize + size;
end {else if}
else if opcode in
[pc_les,pc_leq,pc_grt,pc_geq,pc_sto,pc_cpi,pc_ind,pc_lor,pc_lnd,
[pc_les,pc_leq,pc_grt,pc_geq,pc_sto,pc_cpi,pc_ind,
pc_ili,pc_iil,pc_idl,pc_ild,pc_ixa]
then begin
if dworkLoc = 0 then begin