r184595 - Fix a leak of TargetMachine in clang. We'll continue to leak it on purpose if

[Nick Lewycky]

Author: nicholas
Date: Fri Jun 21 16:15:32 2013
New Revision: 184595

URL: http://llvm.org/viewvc/llvm-project?rev=184595&view=rev
Log:
Fix a leak of TargetMachine in clang. We'll continue to leak it on purpose if
given -disable-free. (Reviewed by John McCall over IRC.)

Modified:
    cfe/trunk/include/clang/Frontend/CodeGenOptions.def
    cfe/trunk/lib/CodeGen/BackendUtil.cpp
    cfe/trunk/lib/Frontend/CompilerInvocation.cpp

Modified: cfe/trunk/include/clang/Frontend/CodeGenOptions.def
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Frontend/CodeGenOptions.def?rev=184595&r1=184594&r2=184595&view=diff
==============================================================================
--- cfe/trunk/include/clang/Frontend/CodeGenOptions.def (original)
+++ cfe/trunk/include/clang/Frontend/CodeGenOptions.def Fri Jun 21 16:15:32 2013
@@ -39,11 +39,12 @@ CODEGENOPT(CXXCtorDtorAliases, 1, 0) ///
                                      ///< aliases to base ctors when possible.
 CODEGENOPT(DataSections      , 1, 0) ///< Set when -fdata-sections is enabled.
 CODEGENOPT(DisableFPElim     , 1, 0) ///< Set when -fomit-frame-pointer is enabled.
+CODEGENOPT(DisableFree       , 1, 0) ///< Don't free memory.
+CODEGENOPT(DisableGCov       , 1, 0) ///< Don't run the GCov pass, for testing.
 CODEGENOPT(DisableLLVMOpts   , 1, 0) ///< Don't run any optimizations, for use in
                                      ///< getting .bc files that correspond to the
                                      ///< internal state before optimizations are
                                      ///< done.
-CODEGENOPT(DisableGCov       , 1, 0) ///< Don't run the GCov pass, for testing.
 CODEGENOPT(DisableRedZone    , 1, 0) ///< Set when -mno-red-zone is enabled.
 CODEGENOPT(DisableTailCalls  , 1, 0) ///< Do not emit tail calls.
 CODEGENOPT(EmitDeclMetadata  , 1, 0) ///< Emit special metadata indicating what

Modified: cfe/trunk/lib/CodeGen/BackendUtil.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/BackendUtil.cpp?rev=184595&r1=184594&r2=184595&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/BackendUtil.cpp (original)
+++ cfe/trunk/lib/CodeGen/BackendUtil.cpp Fri Jun 21 16:15:32 2013
@@ -528,6 +528,7 @@ void EmitAssemblyHelper::EmitAssembly(Ba
                       Action != Backend_EmitLL);
   TargetMachine *TM = CreateTargetMachine(UsesCodeGen);
   if (UsesCodeGen && !TM) return;
+  llvm::OwningPtr<TargetMachine> TMOwner(CodeGenOpts.DisableFree ? 0 : TM);
   CreatePasses(TM);
 
   switch (Action) {

Modified: cfe/trunk/lib/Frontend/CompilerInvocation.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Frontend/CompilerInvocation.cpp?rev=184595&r1=184594&r2=184595&view=diff
==============================================================================
--- cfe/trunk/lib/Frontend/CompilerInvocation.cpp (original)
+++ cfe/trunk/lib/Frontend/CompilerInvocation.cpp Fri Jun 21 16:15:32 2013
@@ -363,6 +363,7 @@ static bool ParseCodeGenArgs(CodeGenOpti
   Opts.CodeModel = Args.getLastArgValue(OPT_mcode_model);
   Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass);
   Opts.DisableFPElim = Args.hasArg(OPT_mdisable_fp_elim);
+  Opts.DisableFree = Args.hasArg(OPT_disable_free);
   Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls);
   Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi);
   Opts.HiddenWeakVTables = Args.hasArg(OPT_fhidden_weak_vtables);