commit 5659a2f961087728b8da9ff24fbf139ca90330ce
author Alex Lorenz <arphaman@gmail.com> Tue Aug 11 23:23:17 2015 +0000
committer Alex Lorenz <arphaman@gmail.com> Tue Aug 11 23:23:17 2015 +0000
tree 84ab4735889285ba922a5c1799c62c65cc7a9103
parent 52a0f1e8c6f01a37be5b5e868eee8c0ff2958be0

PseudoSourceValue: Transform the mips subclass to target independent subclasses

This commit transforms the mips-specific 'MipsCallEntry' subclass of the
'PseudoSourceValue' class into two, target-independent subclasses named
'GlobalValuePseudoSourceValue' and 'ExternalSymbolPseudoSourceValue'.

This change makes it easier to serialize the pseudo source values by removing
target-specific pseudo source values.

Reviewers: Akira Hatanaka
llvm-svn: 244698

llvm/lib/CodeGen/PseudoSourceValue.cpp

diff --git a/llvm/lib/CodeGen/PseudoSourceValue.cpp b/llvm/lib/CodeGen/PseudoSourceValue.cpp
index 79b09ee..da54c69 100644
--- a/llvm/lib/CodeGen/PseudoSourceValue.cpp
+++ b/llvm/lib/CodeGen/PseudoSourceValue.cpp
@@ -24,7 +24,8 @@
 using namespace llvm;
 
 static const char *const PSVNames[] = {
-    "Stack", "GOT", "JumpTable", "ConstantPool", "FixedStack", "MipsCallEntry"};
+    "Stack", "GOT", "JumpTable", "ConstantPool", "FixedStack",
+    "GlobalValueCallEntry", "ExternalSymbolCallEntry"};
 
 PseudoSourceValue::PseudoSourceValue(PSVKind Kind) : Kind(Kind) {}
 
@@ -76,6 +77,28 @@
   OS << "FixedStack" << FI;
 }
 
+CallEntryPseudoSourceValue::CallEntryPseudoSourceValue(PSVKind Kind)
+    : PseudoSourceValue(Kind) {}
+
+bool CallEntryPseudoSourceValue::isConstant(const MachineFrameInfo *) const {
+  return false;
+}
+
+bool CallEntryPseudoSourceValue::isAliased(const MachineFrameInfo *) const {
+  return false;
+}
+
+bool CallEntryPseudoSourceValue::mayAlias(const MachineFrameInfo *) const {
+  return false;
+}
+
+GlobalValuePseudoSourceValue::GlobalValuePseudoSourceValue(
+    const GlobalValue *GV)
+    : CallEntryPseudoSourceValue(GlobalValueCallEntry), GV(GV) {}
+
+ExternalSymbolPseudoSourceValue::ExternalSymbolPseudoSourceValue(const char *ES)
+    : CallEntryPseudoSourceValue(ExternalSymbolCallEntry), ES(ES) {}
+
 PseudoSourceValueManager::PseudoSourceValueManager()
     : StackPSV(PseudoSourceValue::Stack), GOTPSV(PseudoSourceValue::GOT),
       JumpTablePSV(PseudoSourceValue::JumpTable),
@@ -101,3 +124,21 @@
     V = llvm::make_unique<FixedStackPseudoSourceValue>(FI);
   return V.get();
 }
+
+const PseudoSourceValue *
+PseudoSourceValueManager::getGlobalValueCallEntry(const GlobalValue *GV) {
+  std::unique_ptr<const GlobalValuePseudoSourceValue> &E =
+      GlobalCallEntries[GV];
+  if (!E)
+    E = llvm::make_unique<GlobalValuePseudoSourceValue>(GV);
+  return E.get();
+}
+
+const PseudoSourceValue *
+PseudoSourceValueManager::getExternalSymbolCallEntry(const char *ES) {
+  std::unique_ptr<const ExternalSymbolPseudoSourceValue> &E =
+      ExternalCallEntries[ES];
+  if (!E)
+    E = llvm::make_unique<ExternalSymbolPseudoSourceValue>(ES);
+  return E.get();
+}