#include "llvm/CodeGen/Passes.h"
#include "llvm/IntrinsicInst.h"
#include "llvm/Module.h"
+#include "llvm/Analysis/Dominators.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
-#include "llvm/Target/TargetFrameInfo.h"
+#include "llvm/Target/TargetFrameLowering.h"
#include "llvm/Target/TargetInstrInfo.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetRegisterInfo.h"
void LowerIntrinsics::getAnalysisUsage(AnalysisUsage &AU) const {
FunctionPass::getAnalysisUsage(AU);
AU.addRequired<GCModuleInfo>();
+ AU.addPreserved<DominatorTree>();
}
/// doInitialization - If this module uses the GC intrinsics, find them now.
if (NeedsDefaultLoweringPass(S))
MadeChange |= PerformDefaultLowering(F, S);
- if (NeedsCustomLoweringPass(S))
+ bool UseCustomLoweringPass = NeedsCustomLoweringPass(S);
+ if (UseCustomLoweringPass)
MadeChange |= S.performCustomLowering(F);
-
+
+ // Custom lowering may modify the CFG, so dominators must be recomputed.
+ if (UseCustomLoweringPass) {
+ if (DominatorTree *DT = getAnalysisIfAvailable<DominatorTree>())
+ DT->DT->recalculate(F);
+ }
+
return MadeChange;
}
}
void MachineCodeAnalysis::FindStackOffsets(MachineFunction &MF) {
- const TargetFrameInfo *TFI = TM->getFrameInfo();
+ const TargetFrameLowering *TFI = TM->getFrameLowering();
assert(TFI && "TargetRegisterInfo not available!");
for (GCFunctionInfo::roots_iterator RI = FI->roots_begin(),