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LowerSubregs should not clobber any analysis.

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llvm-svn: 51933
This commit is contained in:
Evan Cheng 2008-06-04 09:17:16 +00:00
parent 9153a5316c
commit 7504610c97
1 changed files with 4 additions and 0 deletions
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4
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&);