Set the SuppressWarnings option on tool level and propagate to the library.

The SuppressWarnings flag, unfortunately, isn't very useful for custom tools
that want to use the LLVM module linker. So I'm changing it to a parameter of
the Linker, and the flag itself moves to the llvm-link tool.

For the time being as SuppressWarnings is pretty much the only "option" it
seems reasonable to propagate it to Linker objects. If we end up with more
options in the future, some sort of "struct collecting options" may be a
better idea.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201819 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 13 insertions, 12 deletions

diff --git a/lib/Linker/LinkModules.cpp b/lib/Linker/LinkModules.cpp
index df9d9c9842..1bfc8284b8 100644
--- a/lib/Linker/LinkModules.cpp
+++ b/lib/Linker/LinkModules.cpp
@@ -27,10 +27,6 @@
 using namespace llvm;
 
 
-static cl::opt<bool>
-SuppressWarnings("suppress-warnings", cl::desc("Suppress all linking warnings"),
-                 cl::init(false));
-
 //===----------------------------------------------------------------------===//
 // TypeMap implementation.
 //===----------------------------------------------------------------------===//
@@ -408,15 +404,18 @@ namespace {
     
     // Vector of functions to lazily link in.
     std::vector<Function*> LazilyLinkFunctions;
+
+    bool SuppressWarnings;
     
   public:
     std::string ErrorMsg;
-    
-    ModuleLinker(Module *dstM, TypeSet &Set, Module *srcM, unsigned mode)
-      : DstM(dstM), SrcM(srcM), TypeMap(Set),
-        ValMaterializer(TypeMap, DstM, LazilyLinkFunctions),
-        Mode(mode) { }
-    
+
+    ModuleLinker(Module *dstM, TypeSet &Set, Module *srcM, unsigned mode,
+                 bool SuppressWarnings=false)
+        : DstM(dstM), SrcM(srcM), TypeMap(Set),
+          ValMaterializer(TypeMap, DstM, LazilyLinkFunctions), Mode(mode),
+          SuppressWarnings(SuppressWarnings) {}
+
     bool run();
     
   private:
@@ -1354,7 +1353,8 @@ bool ModuleLinker::run() {
   return false;
 }
 
-Linker::Linker(Module *M) : Composite(M) {
+Linker::Linker(Module *M, bool SuppressWarnings)
+    : Composite(M), SuppressWarnings(SuppressWarnings) {
   TypeFinder StructTypes;
   StructTypes.run(*M, true);
   IdentifiedStructTypes.insert(StructTypes.begin(), StructTypes.end());
@@ -1369,7 +1369,8 @@ void Linker::deleteModule() {
 }
 
 bool Linker::linkInModule(Module *Src, unsigned Mode, std::string *ErrorMsg) {
-  ModuleLinker TheLinker(Composite, IdentifiedStructTypes, Src, Mode);
+  ModuleLinker TheLinker(Composite, IdentifiedStructTypes, Src, Mode,
+                         SuppressWarnings);
   if (TheLinker.run()) {
     if (ErrorMsg)
       *ErrorMsg = TheLinker.ErrorMsg;