Add an MCSubtargetInfo variable to the TargetMachine.

This enables us to remove calls to the subtarget from the TargetMachine
and with a small hack for backends that require global subtarget
information for module level code generation, e.g. mips abi flags, as
mentioned in a fixme in the code.

llvm-svn: 232776

1 files changed, 3 insertions, 1 deletions

diff --git a/llvm/lib/Target/TargetMachine.cpp b/llvm/lib/Target/TargetMachine.cpp
index 31dbdc6f9a7..dd07f818477 100644
--- a/llvm/lib/Target/TargetMachine.cpp
+++ b/llvm/lib/Target/TargetMachine.cpp
@@ -42,13 +42,15 @@ TargetMachine::TargetMachine(const Target &T, StringRef DataLayoutString,
                              const TargetOptions &Options)
     : TheTarget(T), DL(DataLayoutString), TargetTriple(TT), TargetCPU(CPU),
       TargetFS(FS), CodeGenInfo(nullptr), AsmInfo(nullptr), MRI(nullptr),
-      MII(nullptr), RequireStructuredCFG(false), Options(Options) {}
+      MII(nullptr), STI(nullptr), RequireStructuredCFG(false),
+      Options(Options) {}
 
 TargetMachine::~TargetMachine() {
   delete CodeGenInfo;
   delete AsmInfo;
   delete MRI;
   delete MII;
+  delete STI;
 }
 
 /// \brief Reset the target options based on the function's attributes.