From bc473edd7bf31c57d272fc225667ce66ec8c7d71 Mon Sep 17 00:00:00 2001
From: Eric Christopher <echristo@gmail.com>
Date: Sat, 21 Mar 2015 03:36:02 +0000
Subject: [PATCH] Remove the bare getSubtargetImpl call from the PPC port. As
 part of this add a test that shows we can generate code with for functions
 that differ by subtarget feature.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232882 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/PowerPC/PPCTargetMachine.cpp  |  3 +--
 lib/Target/PowerPC/PPCTargetMachine.h    |  3 ---
 test/CodeGen/PowerPC/ppc-crbits-onoff.ll | 43 ++++++++++++++++++++++++++++++++
 3 files changed, 44 insertions(+), 5 deletions(-)
 create mode 100644 test/CodeGen/PowerPC/ppc-crbits-onoff.ll

diff --git a/lib/Target/PowerPC/PPCTargetMachine.cpp b/lib/Target/PowerPC/PPCTargetMachine.cpp
index 286f83271bc..5d1f2387e82 100644
--- a/lib/Target/PowerPC/PPCTargetMachine.cpp
+++ b/lib/Target/PowerPC/PPCTargetMachine.cpp
@@ -163,8 +163,7 @@ PPCTargetMachine::PPCTargetMachine(const Target &T, StringRef TT, StringRef CPU,
     : LLVMTargetMachine(T, getDataLayoutString(Triple(TT)), TT, CPU,
                         computeFSAdditions(FS, OL, TT), Options, RM, CM, OL),
       TLOF(createTLOF(Triple(getTargetTriple()))),
-      TargetABI(computeTargetABI(Triple(TT), Options)),
-      Subtarget(TT, CPU, TargetFS, *this) {
+      TargetABI(computeTargetABI(Triple(TT), Options)) {
   initAsmInfo();
 }
 
diff --git a/lib/Target/PowerPC/PPCTargetMachine.h b/lib/Target/PowerPC/PPCTargetMachine.h
index 754a0d9212d..7a490588989 100644
--- a/lib/Target/PowerPC/PPCTargetMachine.h
+++ b/lib/Target/PowerPC/PPCTargetMachine.h
@@ -29,8 +29,6 @@ public:
 private:
   std::unique_ptr<TargetLoweringObjectFile> TLOF;
   PPCABI TargetABI;
-  PPCSubtarget Subtarget;
-
   mutable StringMap<std::unique_ptr<PPCSubtarget>> SubtargetMap;
 
 public:
@@ -40,7 +38,6 @@ public:
 
   ~PPCTargetMachine() override;
 
-  const PPCSubtarget *getSubtargetImpl() const override { return &Subtarget; }
   const PPCSubtarget *getSubtargetImpl(const Function &F) const override;
 
   // Pass Pipeline Configuration
diff --git a/test/CodeGen/PowerPC/ppc-crbits-onoff.ll b/test/CodeGen/PowerPC/ppc-crbits-onoff.ll
new file mode 100644
index 00000000000..88648df5fa3
--- /dev/null
+++ b/test/CodeGen/PowerPC/ppc-crbits-onoff.ll
@@ -0,0 +1,43 @@
+; RUN: llc -mcpu=pwr7 < %s | FileCheck %s
+target datalayout = "E-m:e-i64:64-n32:64"
+target triple = "powerpc64-unknown-linux-gnu"
+
+; Function Attrs: nounwind readnone
+define signext i32 @crbitsoff(i32 signext %v1, i32 signext %v2) #0 {
+entry:
+  %tobool = icmp ne i32 %v1, 0
+  %lnot = icmp eq i32 %v2, 0
+  %and3 = and i1 %tobool, %lnot
+  %and = zext i1 %and3 to i32
+  ret i32 %and
+
+; CHECK-LABEL: @crbitsoff
+; CHECK-DAG: cmplwi {{[0-9]+}}, 3, 0
+; CHECK-DAG: li [[REG2:[0-9]+]], 1
+; CHECK-DAG: cntlzw [[REG3:[0-9]+]],
+; CHECK: isel 3, 0, [[REG2]]
+; CHECK: and 3, 3, [[REG3]]
+; CHECK: blr
+}
+
+define signext i32 @crbitson(i32 signext %v1, i32 signext %v2) #1 {
+entry:
+  %tobool = icmp ne i32 %v1, 0
+  %lnot = icmp eq i32 %v2, 0
+  %and3 = and i1 %tobool, %lnot
+  %and = zext i1 %and3 to i32
+  ret i32 %and
+
+; CHECK-LABEL: @crbitson
+; CHECK-DAG: cmpwi {{[0-9]+}}, 3, 0
+; CHECK-DAG: cmpwi {{[0-9]+}}, 4, 0
+; CHECK-DAG: li [[REG2:[0-9]+]], 1
+; CHECK-DAG: crorc [[REG3:[0-9]+]],
+; CHECK: isel 3, 0, [[REG2]], [[REG3]]
+; CHECK: blr
+}
+
+
+attributes #0 = { nounwind readnone "target-features"="-crbits" }
+attributes #1 = { nounwind readnone }
+
-- 
2.11.0