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LowerSubregs should not clobber any analysis. 

llvm-svn: 51933
This commit is contained in:
Evan Cheng 2008-06-04 09:17:16 +00:00
parent eecdf659e8
commit a15e7eb29b
1 changed files with 4 additions and 0 deletions
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4
llvm/lib/CodeGen/LowerSubregs.cpp
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@ -30,6 +30,10 @@ namespace {
return "Subregister lowering instruction pass";
}
void getAnalysisUsage(AnalysisUsage &AU) const {
AU.setPreservesAll();
}
/// runOnMachineFunction - pass entry point
bool runOnMachineFunction(MachineFunction&);