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* Ensure the number of operands is 2 for MOVXX instructions in OptPass1MOVXX. Otherwise the classic MOVSD/W/B no-operand instructions (REP MOVSX) cause AV during checks of operands. The AV is thrown when trying to compile ucomplex.pp with -Cfsse3.

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* Also fixed generation of debug comments in OptPass1MOVXX.

git-svn-id: trunk@36295 -
This commit is contained in:
yury 2017-05-22 15:20:18 +00:00
parent 5eb0506be7
commit 884cb758e7
1 changed files with 4 additions and 1 deletions
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5
compiler/x86/aoptx86.pas
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@ -1622,7 +1622,10 @@ unit aoptx86;
hp1 : tai;
begin
Result:=false;
if taicpu(p).opercnt <> 2 then
exit;
if GetNextInstruction(p,hp1) and
(taicpu(hp1).opercnt = 2) and
MatchInstruction(hp1,taicpu(p).opcode,[taicpu(p).opsize]) then
begin
if (taicpu(hp1).oper[0]^.typ = taicpu(p).oper[1]^.typ) and
@ -1651,8 +1654,8 @@ unit aoptx86;
begin
asml.remove(p);
p.free;
DebugMsg('PeepHole Optimization MovXXMovXX2Nop 1 done',p);
GetNextInstruction(hp1,p);
DebugMsg('PeepHole Optimization MovXXMovXX2Nop 1 done',p);
end
else
DebugMsg('PeepHole Optimization MovXXMovXX2MoVXX 1 done',p);