[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/Target/AMDGPU/R600Packetizer.cpp b/llvm/lib/Target/AMDGPU/R600Packetizer.cpp
index 5b6dd1e..3e95712 100644
--- a/llvm/lib/Target/AMDGPU/R600Packetizer.cpp
+++ b/llvm/lib/Target/AMDGPU/R600Packetizer.cpp
@@ -36,7 +36,7 @@
public:
static char ID;
- R600Packetizer(const TargetMachine &TM) : MachineFunctionPass(ID) {}
+ R600Packetizer() : MachineFunctionPass(ID) {}
void getAnalysisUsage(AnalysisUsage &AU) const override {
AU.setPreservesCFG();
@@ -404,6 +404,6 @@
} // end anonymous namespace
-llvm::FunctionPass *llvm::createR600Packetizer(TargetMachine &tm) {
- return new R600Packetizer(tm);
+llvm::FunctionPass *llvm::createR600Packetizer() {
+ return new R600Packetizer();
}