commit 1e3037f0be430ef2339838bbdede11f45658bd82
author Peter Collingbourne <peter@pcc.me.uk> Mon Sep 16 01:08:15 2013 +0000
committer Peter Collingbourne <peter@pcc.me.uk> Mon Sep 16 01:08:15 2013 +0000
tree 685847478f3c9e31c3e1fa7f63f5f605e5f43f80
parent fabfb5d5880354983c89c6f475312dd359e5bb03

Implement function prefix data as an IR feature.

Previous discussion:
http://lists.cs.uiuc.edu/pipermail/llvmdev/2013-July/063909.html

Differential Revision: http://llvm-reviews.chandlerc.com/D1191

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190773 91177308-0d34-0410-b5e6-96231b3b80d8

lib/AsmParser/LLParser.cpp

diff --git a/lib/AsmParser/LLParser.cpp b/lib/AsmParser/LLParser.cpp
index 8fa0104..336518c 100644
--- a/lib/AsmParser/LLParser.cpp
+++ b/lib/AsmParser/LLParser.cpp
@@ -2922,7 +2922,7 @@
 /// FunctionHeader
 ///   ::= OptionalLinkage OptionalVisibility OptionalCallingConv OptRetAttrs
 ///       OptUnnamedAddr Type GlobalName '(' ArgList ')' OptFuncAttrs OptSection
-///       OptionalAlign OptGC
+///       OptionalAlign OptGC OptionalPrefix
 bool LLParser::ParseFunctionHeader(Function *&Fn, bool isDefine) {
   // Parse the linkage.
   LocTy LinkageLoc = Lex.getLoc();
@@ -3001,6 +3001,7 @@
   std::string GC;
   bool UnnamedAddr;
   LocTy UnnamedAddrLoc;
+  Constant *Prefix = 0;
 
   if (ParseArgumentList(ArgList, isVarArg) ||
       ParseOptionalToken(lltok::kw_unnamed_addr, UnnamedAddr,
@@ -3011,7 +3012,9 @@
        ParseStringConstant(Section)) ||
       ParseOptionalAlignment(Alignment) ||
       (EatIfPresent(lltok::kw_gc) &&
-       ParseStringConstant(GC)))
+       ParseStringConstant(GC)) ||
+      (EatIfPresent(lltok::kw_prefix) &&
+       ParseGlobalTypeAndValue(Prefix)))
     return true;
 
   if (FuncAttrs.contains(Attribute::Builtin))
@@ -3109,6 +3112,7 @@
   Fn->setAlignment(Alignment);
   Fn->setSection(Section);
   if (!GC.empty()) Fn->setGC(GC.c_str());
+  Fn->setPrefixData(Prefix);
   ForwardRefAttrGroups[Fn] = FwdRefAttrGrps;
 
   // Add all of the arguments we parsed to the function.