Remove the target independent TargetMachine::getSubtarget and

TargetMachine::getSubtargetImpl routines.

This keeps the target independent code free of bare subtarget
calls while the remainder of the backends are migrated, or not
if they don't wish to support per-function subtargets as would
be needed for function multiversioning or LTO of disparate
cpu subarchitecture types, e.g.

clang -msse4.2 -c foo.c -emit-llvm -o foo.bc
clang -c bar.c -emit-llvm -o bar.bc
llvm-link foo.bc bar.bc -o baz.bc
llc baz.bc

and get appropriate code for what the command lines requested.

llvm-svn: 232885

1 files changed, 4 insertions, 1 deletions

diff --git a/llvm/lib/Target/BPF/BPFTargetMachine.h b/llvm/lib/Target/BPF/BPFTargetMachine.h
index 1bfaafc6a58..6aeafb99a2a 100644
--- a/llvm/lib/Target/BPF/BPFTargetMachine.h
+++ b/llvm/lib/Target/BPF/BPFTargetMachine.h
@@ -27,7 +27,10 @@ public:
                    const TargetOptions &Options, Reloc::Model RM,
                    CodeModel::Model CM, CodeGenOpt::Level OL);
 
-  const BPFSubtarget *getSubtargetImpl() const override { return &Subtarget; }
+  const BPFSubtarget *getSubtargetImpl() const { return &Subtarget; }
+  const BPFSubtarget *getSubtargetImpl(const Function &) const override {
+    return &Subtarget;
+  }
 
   TargetPassConfig *createPassConfig(PassManagerBase &PM) override;