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Reapply r77654 with a fix: MachineFunctionPass's getAnalysisUsage

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shouldn't do AU.setPreservesCFG(), because even though CodeGen passes
don't modify the LLVM IR CFG, they may modify the MachineFunction CFG,
and passes like MachineLoop are registered with isCFGOnly set to true.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77691 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2009-07-31 18:16:33 +00:00
parent 56594f9884
commit ad2afc2a42
18 changed files with 189 additions and 136 deletions
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21
include/llvm/CodeGen/MachineFunction.h
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@ -67,7 +67,7 @@ struct MachineFunctionInfo {
};
class MachineFunction : private Annotation {
const Function *Fn;
Function *Fn;
const TargetMachine &Target;
// RegInfo - Information about each register in use in the function.
@ -115,12 +115,12 @@ class MachineFunction : private Annotation {
unsigned Alignment;
public:
MachineFunction(const Function *Fn, const TargetMachine &TM);
MachineFunction(Function *Fn, const TargetMachine &TM);
~MachineFunction();
/// getFunction - Return the LLVM function that this machine code represents
///
const Function *getFunction() const { return Fn; }
Function *getFunction() const { return Fn; }
/// getTarget - Return the target machine this machine code is compiled with
///
@ -229,21 +229,6 @@ public:
///
void dump() const;
/// construct - Allocate and initialize a MachineFunction for a given Function
/// and Target
///
static MachineFunction& construct(const Function *F, const TargetMachine &TM);
/// destruct - Destroy the MachineFunction corresponding to a given Function
///
static void destruct(const Function *F);
/// get - Return a handle to a MachineFunction corresponding to the given
/// Function. This should not be called before "construct()" for a given
/// Function.
///
static MachineFunction& get(const Function *F);
// Provide accessors for the MachineBasicBlock list...
typedef BasicBlockListType::iterator iterator;
typedef BasicBlockListType::const_iterator const_iterator;