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* arm/aarch64: patch by J. Gareth Moreton: fix register allocation information for Mov2None 2, should resolve #38055

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git-svn-id: trunk@48235 -
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florian 2021-01-20 21:14:09 +00:00
parent 13318117ed
commit 7a3eb453d4
1 changed files with 5 additions and 0 deletions
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5
compiler/armgen/aoptarm.pas
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@ -531,6 +531,11 @@ Implementation
{ Instruction will become mov r1,r1 }
DebugMsg('Peephole Optimization: Mov2None 2 done', next_hp);
{ Allocate r1 between the instructions; not doing
so may cause problems when removing superfluous
MOVs later (i38055) }
AllocRegBetween(taicpu(p).oper[1]^.reg, p, next_hp, UsedRegs);
if (next_hp = hp1) then
{ Don't let hp1 become a dangling pointer }
hp1 := nil;