From 860775c2b05a0d0ecadcbf2e9283912061fb5235 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Wed, 30 Dec 2009 04:13:37 +0000
Subject: [PATCH] fix parsing of mdstring values.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92290 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/AsmParser/LLParser.cpp | 11 ++++-------
 test/Assembler/metadata.ll |  8 ++++++++
 2 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/lib/AsmParser/LLParser.cpp b/lib/AsmParser/LLParser.cpp
index db2a5a92ab9..1ef4209dae3 100644
--- a/lib/AsmParser/LLParser.cpp
+++ b/lib/AsmParser/LLParser.cpp
@@ -1888,7 +1888,7 @@ bool LLParser::ParseValID(ValID &ID) {
     ID.StrVal = Lex.getStrVal();
     ID.Kind = ValID::t_LocalName;
     break;
-  case lltok::Metadata: {  // !{...} MDNode, !"foo" MDString
+  case lltok::Metadata:   // !{...} MDNode, !"foo" MDString
     Lex.Lex();
     
     // FIXME: This doesn't belong here.
@@ -1905,20 +1905,17 @@ bool LLParser::ParseValID(ValID &ID) {
 
     // Standalone metadata reference
     // !{ ..., !42, ... }
-    // FIXME: Split MetadataVal into one for MDNode and one for MDString.
-    if (!ParseMDNode(ID.MDNodeVal)) {
+    if (Lex.getKind() == lltok::APSInt) {
+      if (ParseMDNode(ID.MDNodeVal)) return true;
       ID.Kind = ValID::t_MDNode;
       return false;
     }
     
-    // FIXME: This can't work.
-
     // MDString:
     //   ::= '!' STRINGCONSTANT
     if (ParseMDString(ID.MDStringVal)) return true;
     ID.Kind = ValID::t_MDString;
     return false;
-  }
   case lltok::APSInt:
     ID.APSIntVal = Lex.getAPSIntVal();
     ID.Kind = ValID::t_APSInt;
@@ -2473,7 +2470,7 @@ bool LLParser::ConvertValIDToValue(const Type *Ty, ValID &ID, Value *&V,
   case ValID::t_LocalID: V = PFS.GetVal(ID.UIntVal, Ty, ID.Loc); break;
   case ValID::t_LocalName: V = PFS.GetVal(ID.StrVal, Ty, ID.Loc); break;
   case ValID::t_MDNode: V = ID.MDNodeVal; break;
-  case ValID::t_MDString: V = ID.MDStringVal;
+  case ValID::t_MDString: V = ID.MDStringVal; break;
   case ValID::t_InlineAsm: {
     const PointerType *PTy = dyn_cast<PointerType>(Ty);
     const FunctionType *FTy = 
diff --git a/test/Assembler/metadata.ll b/test/Assembler/metadata.ll
index 57e1dae1cae..cdb69788584 100644
--- a/test/Assembler/metadata.ll
+++ b/test/Assembler/metadata.ll
@@ -2,8 +2,16 @@
 define void @test() {
   add i32 2, 1, !bar !0
   add i32 1, 2, !foo !1
+  
+  call void @llvm.dbg.func.start(metadata !"foo")
+  
   ret void, !foo !0, !bar !1
 }
 
 !0 = metadata !{i32 662302, i32 26, metadata !1, null}
 !1 = metadata !{i32 4}
+
+declare void @llvm.dbg.func.start(metadata) nounwind readnone
+
+
+; !foo = !{ !0, !"foo" }
\ No newline at end of file
-- 
2.34.1