[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/R600ExpandSpecialInstrs.cpp b/llvm/lib/Target/AMDGPU/R600ExpandSpecialInstrs.cpp
index 3e46e63..5c30a07 100644
--- a/llvm/lib/Target/AMDGPU/R600ExpandSpecialInstrs.cpp
+++ b/llvm/lib/Target/AMDGPU/R600ExpandSpecialInstrs.cpp
@@ -37,7 +37,7 @@
unsigned Op);
public:
- R600ExpandSpecialInstrsPass(TargetMachine &tm) : MachineFunctionPass(ID),
+ R600ExpandSpecialInstrsPass() : MachineFunctionPass(ID),
TII(nullptr) { }
bool runOnMachineFunction(MachineFunction &MF) override;
@@ -51,8 +51,8 @@
char R600ExpandSpecialInstrsPass::ID = 0;
-FunctionPass *llvm::createR600ExpandSpecialInstrsPass(TargetMachine &TM) {
- return new R600ExpandSpecialInstrsPass(TM);
+FunctionPass *llvm::createR600ExpandSpecialInstrsPass() {
+ return new R600ExpandSpecialInstrsPass();
}
void R600ExpandSpecialInstrsPass::SetFlagInNewMI(MachineInstr *NewMI,