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Do quad equality comparisons without loading operands on stack.

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This commit is contained in:
Stephen Heumann 2021-02-25 20:03:13 -06:00
parent f1c19d2940
commit c5c401d229
1 changed files with 48 additions and 29 deletions
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77
Gen.pas
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@ -2263,38 +2263,57 @@ else
end; {case optype of cgReal..cgExtended}
cgQuad,cgUQuad: begin
gQuad.preference := onStack;
GenTree(op^.left);
gQuad.preference := onStack;
GenTree(op^.right);
if SimpleQuadLoad(op^.left) and SimpleQuadLoad(op^.right)
and not volatile then begin
lab1 := GenLabel;
OpOnWordOfQuad(m_lda_imm, op^.left, 0);
OpOnWordOfQuad(m_eor_imm, op^.right, 0);
GenNative(m_bne, relative, lab1, nil, 0);
OpOnWordOfQuad(m_lda_imm, op^.left, 2);
OpOnWordOfQuad(m_eor_imm, op^.right, 2);
GenNative(m_bne, relative, lab1, nil, 0);
OpOnWordOfQuad(m_lda_imm, op^.left, 4);
OpOnWordOfQuad(m_eor_imm, op^.right, 4);
GenNative(m_bne, relative, lab1, nil, 0);
OpOnWordOfQuad(m_lda_imm, op^.left, 6);
OpOnWordOfQuad(m_eor_imm, op^.right, 6);
GenLab(lab1);
end {if}
else begin
gQuad.preference := onStack;
GenTree(op^.left);
gQuad.preference := onStack;
GenTree(op^.right);
lab1 := GenLabel;
lab2 := GenLabel;
GenImplied(m_pla);
GenImplied(m_plx);
GenImplied(m_ply);
GenNative(m_eor_s, direct, 3, nil, 0);
GenNative(m_bne, relative, lab1, nil, 0);
GenImplied(m_txa);
GenNative(m_eor_s, direct, 5, nil, 0);
GenNative(m_bne, relative, lab1, nil, 0);
GenImplied(m_tya);
GenNative(m_eor_s, direct, 7, nil, 0);
GenNative(m_bne, relative, lab1, nil, 0);
GenImplied(m_pla);
GenNative(m_eor_s, direct, 7, nil, 0);
GenNative(m_bra, relative, lab2, nil, 0);
GenLab(lab1);
GenImplied(m_plx);
GenLab(lab2);
GenImplied(m_tax);
lab1 := GenLabel;
lab2 := GenLabel;
GenImplied(m_pla);
GenImplied(m_plx);
GenImplied(m_ply);
GenNative(m_eor_s, direct, 3, nil, 0);
GenNative(m_bne, relative, lab1, nil, 0);
GenImplied(m_txa);
GenNative(m_eor_s, direct, 5, nil, 0);
GenNative(m_bne, relative, lab1, nil, 0);
GenImplied(m_tya);
GenNative(m_eor_s, direct, 7, nil, 0);
GenNative(m_bne, relative, lab1, nil, 0);
GenImplied(m_pla);
GenNative(m_eor_s, direct, 7, nil, 0);
GenNative(m_bra, relative, lab2, nil, 0);
GenLab(lab1);
GenImplied(m_plx);
GenLab(lab2);
GenImplied(m_tax);
GenImplied(m_tsc);
GenImplied(m_clc);
GenNative(m_adc_imm, immediate, 8, nil, 0);
GenImplied(m_tcs);
GenImplied(m_tsc);
GenImplied(m_clc);
GenNative(m_adc_imm, immediate, 8, nil, 0);
GenImplied(m_tcs);
GenImplied(m_txa);
end; {else}
GenImplied(m_txa);
if opcode in [pc_fjp,pc_tjp] then begin
lab3 := GenLabel;
if opcode = pc_fjp then