Revert r252858: "[WebAssembly] Switch to MC for instruction printing."

It broke the CMake build:

"Cannot find source file: WebAssemblyRegNumbering.cpp"

llvm-svn: 252897

1 files changed, 2 insertions, 15 deletions

diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyMachineFunctionInfo.h b/llvm/lib/Target/WebAssembly/WebAssemblyMachineFunctionInfo.h
index 81273c0..bac0dfa 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyMachineFunctionInfo.h
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyMachineFunctionInfo.h
@@ -30,11 +30,9 @@ class WebAssemblyFunctionInfo final : public MachineFunctionInfo {
   std::vector<MVT> Params;
   std::vector<MVT> Results;
 
-  /// A mapping from CodeGen vreg index to WebAssembly register number.
-  std::vector<unsigned> WARegs;
-
 public:
-  explicit WebAssemblyFunctionInfo(MachineFunction &MF) : MF(MF) {}
+  explicit WebAssemblyFunctionInfo(MachineFunction &MF)
+      : MF(MF) {}
   ~WebAssemblyFunctionInfo() override;
 
   void addParam(MVT VT) { Params.push_back(VT); }
@@ -42,17 +40,6 @@ public:
 
   void addResult(MVT VT) { Results.push_back(VT); }
   const std::vector<MVT> &getResults() const { return Results; }
-
-  void initWARegs() {
-    assert(WARegs.empty());
-    WARegs.resize(MF.getRegInfo().getNumVirtRegs(), -1u);
-  }
-  void setWAReg(unsigned VReg, unsigned WAReg) {
-    WARegs[TargetRegisterInfo::virtReg2Index(VReg)] = WAReg;
-  }
-  unsigned getWAReg(unsigned VReg) const {
-    return WARegs[TargetRegisterInfo::virtReg2Index(VReg)];
-  }
 };
 
 } // end namespace llvm