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Don't allow the automatically updated MI flags to be set directly.

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The bundle-related MI flags need to be kept in sync with the neighboring
instructions. Don't allow the bulk flag-setting setFlags() function to
change them.

Also don't copy MI flags when cloning an instruction. The clone's bundle
flags will be set when it is explicitly inserted into a bundle.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170459 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen
2012-12-18 21:36:05 +00:00
parent 9b04104a5e
commit bd7b36e780
2 changed files with 5 additions and 3 deletions
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4
lib/CodeGen/MachineInstr.cpp
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@ -556,8 +556,8 @@ MachineInstr::MachineInstr(MachineFunction &MF, const MachineInstr &MI)
for (unsigned i = 0; i != MI.getNumOperands(); ++i)
addOperand(MI.getOperand(i));
// Copy all the flags.
Flags = MI.Flags;
// Copy all the sensible flags.
setFlags(MI.Flags);
// Set parent to null.
Parent = 0;