Align Win64 EH Table sections to 4 bytes.

[oota-llvm.git] / utils / TableGen / LLVMCConfigurationEmitter.cpp

diff --git a/utils/TableGen/LLVMCConfigurationEmitter.cpp b/utils/TableGen/LLVMCConfigurationEmitter.cpp
index b7ac85c5ed54489488d9516bcfb143fc083dcb73..090faf5085560c7075f09c8e66d2561ccb59f2c9 100644 (file)
--- a/utils/TableGen/LLVMCConfigurationEmitter.cpp
+++ b/utils/TableGen/LLVMCConfigurationEmitter.cpp
@@ -74,6 +74,25 @@ int InitPtrToInt(const Init* ptr) {
   return val.getValue();
 }
 
+bool InitPtrToBool(const Init* ptr) {
+  bool ret = false;
+  const DefInit& val = dynamic_cast<const DefInit&>(*ptr);
+  const std::string& str = val.getAsString();
+
+  if (str == "true") {
+    ret = true;
+  }
+  else if (str == "false") {
+    ret = false;
+  }
+  else {
+    throw "Incorrect boolean value: '" + str +
+      "': must be either 'true' or 'false'";
+  }
+
+  return ret;
+}
+
 const std::string& InitPtrToString(const Init* ptr) {
   const StringInit& val = dynamic_cast<const StringInit&>(*ptr);
   return val.getValue();
@@ -95,13 +114,7 @@ const std::string GetOperatorName(const DagInit& D) {
 
 /// CheckBooleanConstant - Check that the provided value is a boolean constant.
 void CheckBooleanConstant(const Init* I) {
-  const DefInit& val = dynamic_cast<const DefInit&>(*I);
-  const std::string& str = val.getAsString();
-
-  if (str != "true" && str != "false") {
-    throw "Incorrect boolean value: '" + str +
-      "': must be either 'true' or 'false'";
-  }
+  InitPtrToBool(I);
 }
 
 // CheckNumberOfArguments - Ensure that the number of args in d is
@@ -768,14 +781,21 @@ public:
 
     CheckNumberOfArguments(d, 2);
 
+    // Alias option store the aliased option name in the 'Help' field and do not
+    // have any properties.
     if (OD.isAlias()) {
-      // Aliases store the aliased option name in the 'Help' field.
       OD.Help = InitPtrToString(d.getArg(1));
     }
     else {
       processOptionProperties(d, OD);
     }
 
+    // Switch options are ZeroOrMore by default.
+    if (OD.isSwitch()) {
+      if (!(OD.isOptional() || OD.isOneOrMore() || OD.isRequired()))
+        OD.setZeroOrMore();
+    }
+
     OptDescs_.InsertDescription(OD);
   }
 
@@ -928,8 +948,22 @@ private:
   }
 
   void onJoin (const DagInit& d) {
-    CheckNumberOfArguments(d, 0);
-    toolDesc_.setJoin();
+    bool isReallyJoin = false;
+
+    if (d.getNumArgs() == 0) {
+      isReallyJoin = true;
+    }
+    else {
+      Init* I = d.getArg(0);
+      isReallyJoin = InitPtrToBool(I);
+    }
+
+    // Is this *really* a join tool? We allow (join false) for generating two
+    // tool descriptions from a single generic one.
+    // TOFIX: come up with a cleaner solution.
+    if (isReallyJoin) {
+      toolDesc_.setJoin();
+    }
   }
 
   void onOutLanguage (const DagInit& d) {
@@ -3021,6 +3055,8 @@ void CheckDriverData(DriverData& Data) {
   FilterNotInGraph(Data.Edges, Data.ToolDescs);
 
   // Typecheck the compilation graph.
+  // TODO: use a genuine graph representation instead of a vector and check for
+  // multiple edges.
   TypecheckGraph(Data.Edges, Data.ToolDescs);
 
   // Check that there are no options without side effects (specified
@@ -3028,7 +3064,8 @@ void CheckDriverData(DriverData& Data) {
   CheckForSuperfluousOptions(Data.Edges, Data.ToolDescs, Data.OptDescs);
 }
 
-void EmitDriverCode(const DriverData& Data, raw_ostream& O) {
+void EmitDriverCode(const DriverData& Data, 
+                    raw_ostream& O, RecordKeeper &Records) {
   // Emit file header.
   EmitIncludes(O);
 
@@ -3089,7 +3126,7 @@ void LLVMCConfigurationEmitter::run (raw_ostream &O) {
     CheckDriverData(Data);
 
     this->EmitSourceFileHeader("llvmc-based driver: auto-generated code", O);
-    EmitDriverCode(Data, O);
+    EmitDriverCode(Data, O, Records);
 
   } catch (std::exception& Error) {
     throw Error.what() + std::string(" - usually this means a syntax error.");