[LegacyPassManager] Remove TargetMachine constructors
This provides a new way to access the TargetMachine through
TargetPassConfig, as a dependency.
The patterns replaced here are:
* Passes handling a null TargetMachine call
`getAnalysisIfAvailable<TargetPassConfig>`.
* Passes not handling a null TargetMachine
`addRequired<TargetPassConfig>` and call
`getAnalysis<TargetPassConfig>`.
* MachineFunctionPasses now use MF.getTarget().
* Remove all the TargetMachine constructors.
* Remove INITIALIZE_TM_PASS.
This fixes a crash when running `llc -start-before prologepilog`.
PEI needs StackProtector, which gets constructed without a TargetMachine
by the pass manager. The StackProtector pass doesn't handle the case
where there is no TargetMachine, so it segfaults.
Related to PR30324.
Differential Revision: https://reviews.llvm.org/D33222
llvm-svn: 303360
diff --git a/llvm/lib/CodeGen/WinEHPrepare.cpp b/llvm/lib/CodeGen/WinEHPrepare.cpp
index ae07e8b..a632b40 100644
--- a/llvm/lib/CodeGen/WinEHPrepare.cpp
+++ b/llvm/lib/CodeGen/WinEHPrepare.cpp
@@ -54,7 +54,7 @@
class WinEHPrepare : public FunctionPass {
public:
static char ID; // Pass identification, replacement for typeid.
- WinEHPrepare(const TargetMachine *TM = nullptr) : FunctionPass(ID) {}
+ WinEHPrepare() : FunctionPass(ID) {}
bool runOnFunction(Function &Fn) override;
@@ -94,12 +94,10 @@
} // end anonymous namespace
char WinEHPrepare::ID = 0;
-INITIALIZE_TM_PASS(WinEHPrepare, "winehprepare", "Prepare Windows exceptions",
- false, false)
+INITIALIZE_PASS(WinEHPrepare, "winehprepare", "Prepare Windows exceptions",
+ false, false)
-FunctionPass *llvm::createWinEHPass(const TargetMachine *TM) {
- return new WinEHPrepare(TM);
-}
+FunctionPass *llvm::createWinEHPass() { return new WinEHPrepare(); }
bool WinEHPrepare::runOnFunction(Function &Fn) {
if (!Fn.hasPersonalityFn())
