[llvm-commits] [127995] Handle noinline attribute in the frontend.

[lattner at apple.com]

Revision: 127995
Author:   lattner
Date:     2007-06-04 16:22:06 -0700 (Mon, 04 Jun 2007)

Log Message:
-----------
Handle noinline attribute in the frontend.

Modified Paths:
--------------
    apple-local/branches/llvm/gcc/llvm-backend.cpp
    apple-local/branches/llvm/gcc/llvm-convert.cpp
    apple-local/branches/llvm/gcc/llvm-internal.h

Modified: apple-local/branches/llvm/gcc/llvm-backend.cpp
===================================================================
--- apple-local/branches/llvm/gcc/llvm-backend.cpp	2007-06-04 23:17:19 UTC (rev 127994)
+++ apple-local/branches/llvm/gcc/llvm-backend.cpp	2007-06-04 23:22:06 UTC (rev 127995)
@@ -80,6 +80,7 @@
 
 std::vector<std::pair<Function*, int> > StaticCtors, StaticDtors;
 std::vector<GlobalValue*> AttributeUsedGlobals;
+std::vector<Function*> AttributeNoinlineFunctions;
 
 /// PerFunctionPasses - This is the list of cleanup passes run per-function
 /// as each is compiled.  In cases where we are not doing IPO, it includes the 
@@ -477,6 +478,20 @@
                        "llvm.used", TheModule);
   }
   
+  // Add llvm.noinline
+  if (!AttributeNoinlineFunctions.empty()) {
+	std::vector<Constant*> GlobalInit;
+    const Type *SBP= PointerType::get(Type::Int8Ty);
+    for (unsigned i = 0, e = AttributeNoinlineFunctions.size(); i != e; ++i)
+      GlobalInit.push_back(ConstantExpr::getBitCast(AttributeNoinlineFunctions[i], 
+                                                    SBP));
+    ArrayType *AT = ArrayType::get(SBP, AttributeNoinlineFunctions.size());
+    Constant *Init = ConstantArray::get(AT, GlobalInit);
+    GlobalValue *gv = new GlobalVariable(AT, false, GlobalValue::AppendingLinkage, Init,
+                       "llvm.noinline", TheModule);
+	gv->setSection("llvm.metadata");
+  }
+  
   // Finish off the per-function pass.
   if (PerFunctionPasses)
     PerFunctionPasses->doFinalization();

Modified: apple-local/branches/llvm/gcc/llvm-convert.cpp
===================================================================
--- apple-local/branches/llvm/gcc/llvm-convert.cpp	2007-06-04 23:17:19 UTC (rev 127994)
+++ apple-local/branches/llvm/gcc/llvm-convert.cpp	2007-06-04 23:22:06 UTC (rev 127995)
@@ -592,6 +592,10 @@
   if (DECL_PRESERVE_P (FnDecl))
     AttributeUsedGlobals.push_back(Fn);
   
+  // Handle noinline Functions
+  if (DECL_UNINLINABLE (FnDecl))
+	AttributeNoinlineFunctions.push_back(Fn); 
+  
   // Create a new basic block for the function.
   Builder.SetInsertPoint(new BasicBlock("entry", Fn));
   

Modified: apple-local/branches/llvm/gcc/llvm-internal.h
===================================================================
--- apple-local/branches/llvm/gcc/llvm-internal.h	2007-06-04 23:17:19 UTC (rev 127994)
+++ apple-local/branches/llvm/gcc/llvm-internal.h	2007-06-04 23:22:06 UTC (rev 127995)
@@ -88,6 +88,9 @@
 /// AttributeUsedGlobals - The list of globals that are marked attribute(used).
 extern std::vector<GlobalValue*> AttributeUsedGlobals;
 
+/// AttributeNoinlineFunctions - The list of functions that are marked attribute(noinline)
+extern std::vector<Function*> AttributeNoinlineFunctions;
+
 void changeLLVMValue(Value *Old, Value *New);
 void readLLVMTypesStringTable();
 void writeLLVMTypesStringTable();