Revert 75762, 75763, 75766..75769, 75772..75775, 75778, 75780, 75782 to repair broken LLVM-GCC build.

Will revert 75770 in the llvm-gcc trunk.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75799 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/Alpha/AlphaTargetMachine.cpp

@@ -22,9 +22,7 @@
 using namespace llvm;
 
 // Register the targets
-extern Target TheAlphaTarget;
-static RegisterTarget<AlphaTargetMachine> X(TheAlphaTarget, "alpha", 
-                                            "Alpha [experimental]");
+static RegisterTarget<AlphaTargetMachine> X("alpha", "Alpha [experimental]");
 
 // No assembler printer by default
 AlphaTargetMachine::AsmPrinterCtorFn AlphaTargetMachine::AsmPrinterCtor = 0;
@@ -36,10 +34,35 @@ const TargetAsmInfo *AlphaTargetMachine::createTargetAsmInfo() const {
   return new AlphaTargetAsmInfo(*this);
 }
 
-AlphaTargetMachine::AlphaTargetMachine(const Target &T, const Module &M, 
-                                       const std::string &FS)
-  : LLVMTargetMachine(T),
-    DataLayout("e-f128:128:128"),
+unsigned AlphaTargetMachine::getModuleMatchQuality(const Module &M) {
+  // We strongly match "alpha*".
+  std::string TT = M.getTargetTriple();
+  if (TT.size() >= 5 && TT[0] == 'a' && TT[1] == 'l' && TT[2] == 'p' &&
+      TT[3] == 'h' && TT[4] == 'a')
+    return 20;
+  // If the target triple is something non-alpha, we don't match.
+  if (!TT.empty()) return 0;
+
+  if (M.getEndianness()  == Module::LittleEndian &&
+      M.getPointerSize() == Module::Pointer64)
+    return 10;                                   // Weak match
+  else if (M.getEndianness() != Module::AnyEndianness ||
+           M.getPointerSize() != Module::AnyPointerSize)
+    return 0;                                    // Match for some other target
+
+  return getJITMatchQuality()/2;
+}
+
+unsigned AlphaTargetMachine::getJITMatchQuality() {
+#ifdef __alpha
+  return 10;
+#else
+  return 0;
+#endif
+}
+
+AlphaTargetMachine::AlphaTargetMachine(const Module &M, const std::string &FS)
+  : DataLayout("e-f128:128:128"),
     FrameInfo(TargetFrameInfo::StackGrowsDown, 16, 0),
     JITInfo(*this),
     Subtarget(M, FS),