From 87dd120c6a4aec73f5bc96a112d5f659fa73d58d Mon Sep 17 00:00:00 2001
From: Eric Christopher <echristo@gmail.com>
Date: Fri, 30 Jan 2015 02:11:24 +0000
Subject: [PATCH] Migrate some of PPC away from the use of bare
 getSubtarget/getSubtargetImpl.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227547 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/PowerPC/PPCCTRLoops.cpp |  3 ++-
 lib/Target/PowerPC/PPCFastISel.cpp | 17 ++++++++---------
 2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/lib/Target/PowerPC/PPCCTRLoops.cpp b/lib/Target/PowerPC/PPCCTRLoops.cpp
index 18de2f6881b..a7713d19054 100644
--- a/lib/Target/PowerPC/PPCCTRLoops.cpp
+++ b/lib/Target/PowerPC/PPCCTRLoops.cpp
@@ -230,7 +230,8 @@ bool PPCCTRLoops::mightUseCTR(const Triple &TT, BasicBlock *BB) {
 
       if (!TM)
         return true;
-      const TargetLowering *TLI = TM->getSubtargetImpl()->getTargetLowering();
+      const TargetLowering *TLI =
+          TM->getSubtargetImpl(*BB->getParent())->getTargetLowering();
 
       if (Function *F = CI->getCalledFunction()) {
         // Most intrinsics don't become function calls, but some might.
diff --git a/lib/Target/PowerPC/PPCFastISel.cpp b/lib/Target/PowerPC/PPCFastISel.cpp
index 2682bc0df53..6061679478f 100644
--- a/lib/Target/PowerPC/PPCFastISel.cpp
+++ b/lib/Target/PowerPC/PPCFastISel.cpp
@@ -85,18 +85,19 @@ typedef struct Address {
 class PPCFastISel final : public FastISel {
 
   const TargetMachine &TM;
+  const PPCSubtarget *PPCSubTarget;
   const TargetInstrInfo &TII;
   const TargetLowering &TLI;
-  const PPCSubtarget *PPCSubTarget;
   LLVMContext *Context;
 
   public:
     explicit PPCFastISel(FunctionLoweringInfo &FuncInfo,
                          const TargetLibraryInfo *LibInfo)
         : FastISel(FuncInfo, LibInfo), TM(FuncInfo.MF->getTarget()),
-          TII(*TM.getSubtargetImpl()->getInstrInfo()),
-          TLI(*TM.getSubtargetImpl()->getTargetLowering()),
-          PPCSubTarget(&TM.getSubtarget<PPCSubtarget>()),
+          PPCSubTarget(
+              &static_cast<const PPCSubtarget &>(FuncInfo.MF->getSubtarget())),
+          TII(*PPCSubTarget->getInstrInfo()),
+          TLI(*PPCSubTarget->getTargetLowering()),
           Context(&FuncInfo.Fn->getContext()) {}
 
   // Backend specific FastISel code.
@@ -2298,13 +2299,11 @@ namespace llvm {
   // Create the fast instruction selector for PowerPC64 ELF.
   FastISel *PPC::createFastISel(FunctionLoweringInfo &FuncInfo,
                                 const TargetLibraryInfo *LibInfo) {
-    const TargetMachine &TM = FuncInfo.MF->getTarget();
-
     // Only available on 64-bit ELF for now.
-    const PPCSubtarget *Subtarget = &TM.getSubtarget<PPCSubtarget>();
-    if (Subtarget->isPPC64() && Subtarget->isSVR4ABI())
+    const PPCSubtarget &Subtarget =
+        static_cast<const PPCSubtarget &>(FuncInfo.MF->getSubtarget());
+    if (Subtarget.isPPC64() && Subtarget.isSVR4ABI())
       return new PPCFastISel(FuncInfo, LibInfo);
-
     return nullptr;
   }
 }
-- 
2.34.1