llvm/tools/llc
Francis Visoiu Mistrih ae1c853358 [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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303360 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-18 17:21:13 +00:00
..
CMakeLists.txt llc: Update link components 2017-01-17 05:47:03 +00:00
llc.cpp [LegacyPassManager] Remove TargetMachine constructors 2017-05-18 17:21:13 +00:00
LLVMBuild.txt llc: Update LLVMBuild 2017-01-17 05:34:08 +00:00