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* don't change a sequence of shifts and sub/adds into a lea() in case

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the flags are read afterwards (broke shldl/sub/sbb sequence generated
    for 64 bit "*2", which appears in bitpacked size calculation)

git-svn-id: trunk@7336 -
This commit is contained in:
Jonas Maebe 2007-05-14 20:37:42 +00:00
parent c9c82ddbf8
commit 20206500aa
3 changed files with 13 additions and 1 deletions
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1
.gitattributes vendored
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@ -6879,6 +6879,7 @@ tests/test/tprec10.pp svneol=native#text/plain
tests/test/tprec11.pp svneol=native#text/plain tests/test/tprec11.pp svneol=native#text/plain
tests/test/tprec12.pp svneol=native#text/plain tests/test/tprec12.pp svneol=native#text/plain
tests/test/tprec13.pp svneol=native#text/plain tests/test/tprec13.pp svneol=native#text/plain
tests/test/tprec14.pp svneol=native#text/plain
tests/test/tprec2.pp svneol=native#text/plain tests/test/tprec2.pp svneol=native#text/plain
tests/test/tprec3.pp svneol=native#text/plain tests/test/tprec3.pp svneol=native#text/plain
tests/test/tprec4.pp svneol=native#text/plain tests/test/tprec4.pp svneol=native#text/plain

4
compiler/i386/popt386.pas
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@ -1497,7 +1497,9 @@ begin
(((taicpu(hp1).opcode = A_INC) or (((taicpu(hp1).opcode = A_INC) or
(taicpu(hp1).opcode = A_DEC)) and (taicpu(hp1).opcode = A_DEC)) and
(taicpu(hp1).oper[0]^.typ = Top_Reg) and (taicpu(hp1).oper[0]^.typ = Top_Reg) and
(taicpu(hp1).oper[0]^.reg = taicpu(p).oper[1]^.reg))) Do (taicpu(hp1).oper[0]^.reg = taicpu(p).oper[1]^.reg))) and
(not GetNextInstruction(hp1,hp2) or
not instrReadsFlags(hp2)) Do
begin begin
TmpBool1 := False; TmpBool1 := False;
if (taicpu(hp1).oper[0]^.typ = Top_Const) then if (taicpu(hp1).oper[0]^.typ = Top_Const) then

9
tests/test/tprec14.pp Normal file
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@ -0,0 +1,9 @@
type
tr = bitpacked record
l: longint;
end;
begin
if bitsizeof(tr) <> 32 then
halt(1);
end.