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- remove SetccMovbLeaveRet2SetccLeaveRet optimization, this type of code is not generated anymore for years

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git-svn-id: trunk@39306 -
This commit is contained in:
florian 2018-06-25 20:40:04 +00:00
parent 1472a81768
commit af37ca8563
1 changed files with 0 additions and 26 deletions
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26
compiler/i386/aoptcpu.pas
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@ -917,32 +917,6 @@ begin
A_SHL, A_SAL:
if OptPass1SHLSAL(p) then
Continue;
A_SETcc :
{ changes
setcc (funcres) setcc reg
movb (funcres), reg to leave/ret
leave/ret }
begin
if (taicpu(p).oper[0]^.typ = top_ref) and
GetNextInstruction(p, hp1) and
GetNextInstruction(hp1, hp2) and
IsExitCode(hp2) and
(taicpu(p).oper[0]^.ref^.base = current_procinfo.FramePointer) and
(taicpu(p).oper[0]^.ref^.index = NR_NO) and
not(assigned(current_procinfo.procdef.funcretsym) and
(taicpu(p).oper[0]^.ref^.offset < tabstractnormalvarsym(current_procinfo.procdef.funcretsym).localloc.reference.offset)) and
(hp1.typ = ait_instruction) and
(taicpu(hp1).opcode = A_MOV) and
(taicpu(hp1).opsize = S_B) and
(taicpu(hp1).oper[0]^.typ = top_ref) and
RefsEqual(taicpu(hp1).oper[0]^.ref^, taicpu(p).oper[0]^.ref^) then
begin
taicpu(p).loadReg(0,taicpu(hp1).oper[1]^.reg);
DebugMsg('Peephole optimizer SetccMovbLeaveRet2SetccLeaveRet',p);
asml.remove(hp1);
hp1.free;
end
end;
A_SUB:
if OptPass1Sub(p) then
continue;