[llvm] r281808 - Revert "Don't create a SymbolTable in Function when the LLVMContext discards value names (NFC)"
Mehdi Amini via llvm-commits
llvm-commits at lists.llvm.org
Fri Sep 16 21:36:47 PDT 2016
Author: mehdi_amini
Date: Fri Sep 16 23:36:46 2016
New Revision: 281808
URL: http://llvm.org/viewvc/llvm-project?rev=281808&view=rev
Log:
Revert "Don't create a SymbolTable in Function when the LLVMContext discards value names (NFC)"
This reverts commit r281806. It introduces undefined behavior as an
API is returning a reference to the Symtab
Modified:
llvm/trunk/include/llvm/IR/Function.h
llvm/trunk/lib/IR/Function.cpp
Modified: llvm/trunk/include/llvm/IR/Function.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/IR/Function.h?rev=281808&r1=281807&r2=281808&view=diff
==============================================================================
--- llvm/trunk/include/llvm/IR/Function.h (original)
+++ llvm/trunk/include/llvm/IR/Function.h Fri Sep 16 23:36:46 2016
@@ -50,8 +50,7 @@ private:
// Important things that make up a function!
BasicBlockListType BasicBlocks; ///< The basic blocks
mutable ArgumentListType ArgumentList; ///< The formal arguments
- std::unique_ptr<ValueSymbolTable>
- SymTab; ///< Symbol table of args/instructions
+ ValueSymbolTable *SymTab; ///< Symbol table of args/instructions
AttributeSet AttributeSets; ///< Parameter attributes
/*
Modified: llvm/trunk/lib/IR/Function.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/IR/Function.cpp?rev=281808&r1=281807&r2=281808&view=diff
==============================================================================
--- llvm/trunk/lib/IR/Function.cpp (original)
+++ llvm/trunk/lib/IR/Function.cpp Fri Sep 16 23:36:46 2016
@@ -258,10 +258,7 @@ Function::Function(FunctionType *Ty, Lin
assert(FunctionType::isValidReturnType(getReturnType()) &&
"invalid return type");
setGlobalObjectSubClassData(0);
-
- // We only need a symbol table for a function if the context keeps value names
- if (!getContext().shouldDiscardValueNames())
- SymTab = make_unique<ValueSymbolTable>();
+ SymTab = new ValueSymbolTable();
// If the function has arguments, mark them as lazily built.
if (Ty->getNumParams())
@@ -282,6 +279,7 @@ Function::~Function() {
// Delete all of the method arguments and unlink from symbol table...
ArgumentList.clear();
+ delete SymTab;
// Remove the function from the on-the-side GC table.
clearGC();
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