Add TargetInfo libraries for all targets.

 - Intended to match current TargetMachine implementations.

 - No facilities for linking these in yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75751 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 57 insertions, 0 deletions

diff --git a/lib/Target/Alpha/TargetInfo/AlphaTargetInfo.cpp b/lib/Target/Alpha/TargetInfo/AlphaTargetInfo.cpp
new file mode 100644
index 0000000..df560b8
--- /dev/null
+++ b/lib/Target/Alpha/TargetInfo/AlphaTargetInfo.cpp
@@ -0,0 +1,57 @@
+//===-- AlphaTargetInfo.cpp - Alpha Target Implementation -----------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Module.h"
+#include "llvm/Target/TargetRegistry.h"
+using namespace llvm;
+
+Target TheAlphaTarget;
+
+static unsigned Alpha_JITMatchQuality() {
+#ifdef __alpha
+  return 10;
+#else
+  return 0;
+#endif
+}
+
+static unsigned Alpha_TripleMatchQuality(const std::string &TT) {
+  // We strongly match "alpha*".
+  if (TT.size() >= 5 && TT[0] == 'a' && TT[1] == 'l' && TT[2] == 'p' &&
+      TT[3] == 'h' && TT[4] == 'a')
+    return 20;
+
+  return 0;
+}
+
+static unsigned Alpha_ModuleMatchQuality(const Module &M) {
+  // Check for a triple match.
+  if (unsigned Q = Alpha_TripleMatchQuality(M.getTargetTriple()))
+    return Q;
+
+  // Otherwise if the target triple is non-empty, we don't match.
+  if (!M.getTargetTriple().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 Alpha_JITMatchQuality()/2;
+}
+
+extern "C" void LLVMInitializeAlphaTargetInfo() { 
+  TargetRegistry::RegisterTarget(TheAlphaTarget, "alpha",
+                                  "Alpha [experimental]",
+                                  &Alpha_TripleMatchQuality,
+                                  &Alpha_ModuleMatchQuality,
+                                  &Alpha_JITMatchQuality);
+}