[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

1 files changed, 7 insertions, 7 deletions

diff --git a/llvm/lib/Target/Sparc/SparcTargetMachine.cpp b/llvm/lib/Target/Sparc/SparcTargetMachine.cpp
index 4ae64062d9e..1da4d360430 100644
--- a/llvm/lib/Target/Sparc/SparcTargetMachine.cpp
+++ b/llvm/lib/Target/Sparc/SparcTargetMachine.cpp
@@ -132,7 +132,7 @@ TargetPassConfig *SparcTargetMachine::createPassConfig(PassManagerBase &PM) {
 }
 
 void SparcPassConfig::addIRPasses() {
-  addPass(createAtomicExpandPass(&getSparcTargetMachine()));
+  addPass(createAtomicExpandPass());
 
   TargetPassConfig::addIRPasses();
 }
@@ -143,26 +143,26 @@ bool SparcPassConfig::addInstSelector() {
 }
 
 void SparcPassConfig::addPreEmitPass(){
-  addPass(createSparcDelaySlotFillerPass(getSparcTargetMachine()));
+  addPass(createSparcDelaySlotFillerPass());
 
   if (this->getSparcTargetMachine().getSubtargetImpl()->insertNOPLoad())
   {
-    addPass(new InsertNOPLoad(getSparcTargetMachine()));
+    addPass(new InsertNOPLoad());
   }
   if (this->getSparcTargetMachine().getSubtargetImpl()->fixFSMULD())
   {
-    addPass(new FixFSMULD(getSparcTargetMachine()));
+    addPass(new FixFSMULD());
   }
   if (this->getSparcTargetMachine().getSubtargetImpl()->replaceFMULS())
   {
-    addPass(new ReplaceFMULS(getSparcTargetMachine()));
+    addPass(new ReplaceFMULS());
   }
   if (this->getSparcTargetMachine().getSubtargetImpl()->detectRoundChange()) {
-    addPass(new DetectRoundChange(getSparcTargetMachine()));
+    addPass(new DetectRoundChange());
   }
   if (this->getSparcTargetMachine().getSubtargetImpl()->fixAllFDIVSQRT())
   {
-    addPass(new FixAllFDIVSQRT(getSparcTargetMachine()));
+    addPass(new FixAllFDIVSQRT());
   }
 }