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* TARMAsmOptimizer.RemoveSuperfluousMove should not mess with PC

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git-svn-id: trunk@44842 -
This commit is contained in:
florian 2020-04-19 11:04:31 +00:00
parent c2df0f2300
commit db19900eb1
1 changed files with 3 additions and 1 deletions

4
compiler/armgen/aoptarm.pas
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@ -200,10 +200,12 @@ Implementation
{ the destination register of the mov might not be used beween p and movp }
not(RegUsedBetween(taicpu(movp).oper[0]^.reg,p,movp)) and
{$ifdef ARM}
{ PC should be changed only by moves }
(taicpu(movp).oper[0]^.reg<>NR_PC) and
{ cb[n]z are thumb instructions which require specific registers, with no wide forms }
(taicpu(p).opcode<>A_CBZ) and
(taicpu(p).opcode<>A_CBNZ) and
{There is a special requirement for MUL and MLA, oper[0] and oper[1] are not allowed to be the same}
{ There is a special requirement for MUL and MLA, oper[0] and oper[1] are not allowed to be the same }
not (
(taicpu(p).opcode in [A_MLA, A_MUL]) and
(taicpu(p).oper[1]^.reg = taicpu(movp).oper[0]^.reg) and