Re-apply the memory operand changes, with a fix for the static

initializer problem, a minor tweak to the way the
DAGISelEmitter finds load/store nodes, and a renaming of the
new PseudoSourceValue objects.

llvm-svn: 46827

1 files changed, 41 insertions, 0 deletions

diff --git a/llvm/lib/CodeGen/PseudoSourceValue.cpp b/llvm/lib/CodeGen/PseudoSourceValue.cpp
index e69de29bb2d..b7fb25e4f10 100644
--- a/llvm/lib/CodeGen/PseudoSourceValue.cpp
+++ b/llvm/lib/CodeGen/PseudoSourceValue.cpp
@@ -0,0 +1,41 @@
+//===-- llvm/CodeGen/PseudoSourceValue.cpp ----------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the PseudoSourceValue class.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/CodeGen/PseudoSourceValue.h"
+#include "llvm/DerivedTypes.h"
+#include "llvm/Support/ManagedStatic.h"
+
+namespace llvm {
+  static ManagedStatic<PseudoSourceValue[5]> PSVs;
+
+  const PseudoSourceValue &PseudoSourceValue::getFixedStack() { return (*PSVs)[0]; }
+  const PseudoSourceValue &PseudoSourceValue::getStack() { return (*PSVs)[1]; }
+  const PseudoSourceValue &PseudoSourceValue::getGOT() { return (*PSVs)[2]; }
+  const PseudoSourceValue &PseudoSourceValue::getConstantPool() { return (*PSVs)[3]; }
+  const PseudoSourceValue &PseudoSourceValue::getJumpTable() { return (*PSVs)[4]; }
+
+  static const char *PSVNames[] = {
+    "FixedStack",
+    "Stack",
+    "GOT",
+    "ConstantPool",
+    "JumpTable"
+  };
+
+  PseudoSourceValue::PseudoSourceValue() :
+    Value(PointerType::getUnqual(Type::Int8Ty), PseudoSourceValueVal) {}
+
+  void PseudoSourceValue::print(std::ostream &OS) const {
+    OS << PSVNames[this - *PSVs];
+  }
+}