Fix tablegen's PrintFatalError function to run registered file

cleanups.

Also, change code in tablegen which printed a message and then called
"exit(1)" to use PrintFatalError, instead.

This fixes instances where an empty output file was left behind after
a failed tablegen invocation, which would confuse subsequent ninja
runs into not attempting to rebuild.

Differential Revision: http://reviews.llvm.org/D9608

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237058 91177308-0d34-0410-b5e6-96231b3b80d8

lib/TableGen/Error.cpp

@@ -14,6 +14,7 @@
 
 #include "llvm/TableGen/Error.h"
 #include "llvm/ADT/Twine.h"
+#include "llvm/Support/Signals.h"
 #include "llvm/Support/raw_ostream.h"
 #include <cstdlib>
 
@@ -64,11 +65,15 @@ void PrintError(const Twine &Msg) {
 
 void PrintFatalError(const Twine &Msg) {
   PrintError(Msg);
+  // The following call runs the file cleanup handlers.
+  sys::RunInterruptHandlers();
   std::exit(1);
 }
 
 void PrintFatalError(ArrayRef<SMLoc> ErrorLoc, const Twine &Msg) {
   PrintError(ErrorLoc, Msg);
+  // The following call runs the file cleanup handlers.
+  sys::RunInterruptHandlers();
   std::exit(1);
 }
 

utils/TableGen/CodeGenDAGPatterns.cpp

@@ -913,8 +913,7 @@ SDTypeConstraint::SDTypeConstraint(Record *R) {
     x.SDTCisSameNumEltsAs_Info.OtherOperandNum =
       R->getValueAsInt("OtherOperandNum");
   } else {
-    errs() << "Unrecognized SDTypeConstraint '" << R->getName() << "'!\n";
-    exit(1);
+    PrintFatalError("Unrecognized SDTypeConstraint '" + R->getName() + "'!\n");
   }
 }
 
@@ -932,11 +931,12 @@ static TreePatternNode *getOperandNum(unsigned OpNo, TreePatternNode *N,
   OpNo -= NumResults;
 
   if (OpNo >= N->getNumChildren()) {
-    errs() << "Invalid operand number in type constraint "
+    std::string S;
+    raw_string_ostream OS(S);
+    OS << "Invalid operand number in type constraint "
            << (OpNo+NumResults) << " ";
-    N->dump();
-    errs() << '\n';
-    exit(1);
+    N->print(OS);
+    PrintFatalError(OS.str());
   }
 
   return N->getChild(OpNo);
@@ -1116,9 +1116,9 @@ SDNodeInfo::SDNodeInfo(Record *R) : Def(R) {
     } else if (PropList[i]->getName() == "SDNPVariadic") {
       Properties |= 1 << SDNPVariadic;
     } else {
-      errs() << "Unknown SD Node property '" << PropList[i]->getName()
-             << "' on node '" << R->getName() << "'!\n";
-      exit(1);
+      PrintFatalError("Unknown SD Node property '" +
+                      PropList[i]->getName() + "' on node '" +
+                      R->getName() + "'!");
     }
   }
 
@@ -1223,8 +1223,7 @@ static unsigned GetNumNodeResults(Record *Operator, CodeGenDAGPatterns &CDP) {
     return 1;
 
   Operator->dump();
-  errs() << "Unhandled node in GetNumNodeResults\n";
-  exit(1);
+  PrintFatalError("Unhandled node in GetNumNodeResults");
 }
 
 void TreePatternNode::print(raw_ostream &OS) const {
@@ -2373,10 +2372,9 @@ CodeGenDAGPatterns::CodeGenDAGPatterns(RecordKeeper &R) :
 
 Record *CodeGenDAGPatterns::getSDNodeNamed(const std::string &Name) const {
   Record *N = Records.getDef(Name);
-  if (!N || !N->isSubClassOf("SDNode")) {
-    errs() << "Error getting SDNode '" << Name << "'!\n";
-    exit(1);
-  }
+  if (!N || !N->isSubClassOf("SDNode"))
+    PrintFatalError("Error getting SDNode '" + Name + "'!");
+
   return N;
 }
 

utils/TableGen/CodeGenTarget.cpp

@@ -411,9 +411,9 @@ ComplexPattern::ComplexPattern(Record *R) {
     } else if (PropList[i]->getName() == "SDNPWantParent") {
       Properties |= 1 << SDNPWantParent;
     } else {
-      errs() << "Unsupported SD Node property '" << PropList[i]->getName()
-             << "' on ComplexPattern '" << R->getName() << "'!\n";
-      exit(1);
+      PrintFatalError("Unsupported SD Node property '" +
+                      PropList[i]->getName() + "' on ComplexPattern '" +
+                      R->getName() + "'!");
     }
 }
 

utils/TableGen/DAGISelMatcherGen.cpp

@@ -268,8 +268,10 @@ void MatcherGen::EmitLeafMatchCode(const TreePatternNode *N) {
     // We can't model ComplexPattern uses that don't have their name taken yet.
     // The OPC_CheckComplexPattern operation implicitly records the results.
     if (N->getName().empty()) {
-      errs() << "We expect complex pattern uses to have names: " << *N << "\n";
-      exit(1);
+      std::string S;
+      raw_string_ostream OS(S);
+      OS << "We expect complex pattern uses to have names: " << *N;
+      PrintFatalError(OS.str());
     }
 
     // Remember this ComplexPattern so that we can emit it after all the other

utils/TableGen/InstrInfoEmitter.cpp

@@ -575,10 +575,8 @@ void InstrInfoEmitter::emitEnums(raw_ostream &OS) {
   // We must emit the PHI opcode first...
   std::string Namespace = Target.getInstNamespace();
 
-  if (Namespace.empty()) {
-    fprintf(stderr, "No instructions defined!\n");
-    exit(1);
-  }
+  if (Namespace.empty())
+    PrintFatalError("No instructions defined!");
 
   const std::vector<const CodeGenInstruction*> &NumberedInstructions =
     Target.getInstructionsByEnumValue();

utils/TableGen/SubtargetEmitter.cpp

@@ -121,10 +121,8 @@ void SubtargetEmitter::Enumeration(raw_ostream &OS,
   unsigned N = DefList.size();
   if (N == 0)
     return;
-  if (N > 64) {
-    errs() << "Too many (> 64) subtarget features!\n";
-    exit(1);
-  }
+  if (N > 64)
+    PrintFatalError("Too many (> 64) subtarget features!");
 
   OS << "namespace " << Target << " {\n";