mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-25 00:29:20 +00:00
It's safe to sink some instructions which are not safe to speculatively
execute. Make Sink's predicate more precise. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118787 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
parent
e7ae70b137
commit
2c71f18ff7
@ -169,7 +169,10 @@ static bool isSafeToMove(Instruction *Inst, AliasAnalysis *AA,
|
||||
return false;
|
||||
}
|
||||
|
||||
return Inst->isSafeToSpeculativelyExecute();
|
||||
if (isa<TerminatorInst>(Inst) || isa<PHINode>(Inst))
|
||||
return false;
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
/// SinkInstruction - Determine whether it is safe to sink the specified machine
|
||||
|
Loading…
Reference in New Issue
Block a user