[multiversion] Switch all of the targets over to use the

TargetIRAnalysis access path directly rather than implementing getTTI.

This even removes getTTI from the interface. It's more efficient for
each target to just register a precise callback that creates their
specific TTI.

As part of this, all of the targets which are building their subtargets
individually per-function now build their TTI instance with the function
and thus look up the correct subtarget and cache it. NVPTX, R600, and
XCore currently don't leverage this functionality, but its trivial for
them to add it now.

llvm-svn: 227735

3 files changed, 6 insertions, 5 deletions

diff --git a/llvm/lib/Target/PowerPC/PPCTargetMachine.cpp b/llvm/lib/Target/PowerPC/PPCTargetMachine.cpp
index ba061cfd6ef..08ecc6fb9b5 100644
--- a/llvm/lib/Target/PowerPC/PPCTargetMachine.cpp
+++ b/llvm/lib/Target/PowerPC/PPCTargetMachine.cpp
@@ -275,6 +275,7 @@ void PPCPassConfig::addPreEmitPass() {
   addPass(createPPCBranchSelectionPass(), false);
 }
 
-TargetTransformInfo PPCTargetMachine::getTTI() {
-  return TargetTransformInfo(PPCTTIImpl(this));
+TargetIRAnalysis PPCTargetMachine::getTargetIRAnalysis() {
+  return TargetIRAnalysis(
+      [this](Function &F) { return TargetTransformInfo(PPCTTIImpl(this, F)); });
 }
diff --git a/llvm/lib/Target/PowerPC/PPCTargetMachine.h b/llvm/lib/Target/PowerPC/PPCTargetMachine.h
index 7786a14f3a9..4499219b833 100644
--- a/llvm/lib/Target/PowerPC/PPCTargetMachine.h
+++ b/llvm/lib/Target/PowerPC/PPCTargetMachine.h
@@ -45,7 +45,7 @@ public:
   // Pass Pipeline Configuration
   TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
 
-  TargetTransformInfo getTTI() override;
+  TargetIRAnalysis getTargetIRAnalysis() override;
 
   TargetLoweringObjectFile *getObjFileLowering() const override {
     return TLOF.get();
diff --git a/llvm/lib/Target/PowerPC/PPCTargetTransformInfo.h b/llvm/lib/Target/PowerPC/PPCTargetTransformInfo.h
index cc780b6864b..7238460467d 100644
--- a/llvm/lib/Target/PowerPC/PPCTargetTransformInfo.h
+++ b/llvm/lib/Target/PowerPC/PPCTargetTransformInfo.h
@@ -33,8 +33,8 @@ class PPCTTIImpl : public BasicTTIImplBase<PPCTTIImpl> {
   const PPCTargetLowering *TLI;
 
 public:
-  explicit PPCTTIImpl(const PPCTargetMachine *TM)
-      : BaseT(TM), ST(TM->getSubtargetImpl()), TLI(ST->getTargetLowering()) {}
+  explicit PPCTTIImpl(const PPCTargetMachine *TM, Function &F)
+      : BaseT(TM), ST(TM->getSubtargetImpl(F)), TLI(ST->getTargetLowering()) {}
 
   // Provide value semantics. MSVC requires that we spell all of these out.
   PPCTTIImpl(const PPCTTIImpl &Arg)