[cfe-commits] r41188 - in /cfe/trunk/CodeGen: CGBuiltin.cpp CGExpr.cpp CodeGenFunction.h

[Anders Carlsson]

Author: andersca
Date: Mon Aug 20 13:05:56 2007
New Revision: 41188

URL: http://llvm.org/viewvc/llvm-project?rev=41188&view=rev
Log:
Add support for code generation of builtins.

Added:
    cfe/trunk/CodeGen/CGBuiltin.cpp
Modified:
    cfe/trunk/CodeGen/CGExpr.cpp
    cfe/trunk/CodeGen/CodeGenFunction.h

Added: cfe/trunk/CodeGen/CGBuiltin.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/CodeGen/CGBuiltin.cpp?rev=41188&view=auto

==============================================================================
--- cfe/trunk/CodeGen/CGBuiltin.cpp (added)
+++ cfe/trunk/CodeGen/CGBuiltin.cpp Mon Aug 20 13:05:56 2007
@@ -0,0 +1,30 @@
+//===---- CGBuiltin.cpp - Emit LLVM Code for builtins ---------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file was developed by Anders Carlsson and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This contains code to emit Builtin calls as LLVM code.
+//
+//===----------------------------------------------------------------------===//
+
+#include "CodeGenFunction.h"
+#include "CodeGenModule.h"
+#include "clang/AST/Builtins.h"
+#include "clang/AST/Expr.h"
+
+using namespace clang;
+using namespace CodeGen;
+
+RValue CodeGenFunction::EmitBuiltinExpr(unsigned builtinID, const CallExpr *E)
+{
+  switch (builtinID) {
+    default:
+      assert(0 && "Unknown builtin id");
+  }
+      
+  return RValue::get(0);
+}

Modified: cfe/trunk/CodeGen/CGExpr.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/CodeGen/CGExpr.cpp?rev=41188&r1=41187&r2=41188&view=diff

==============================================================================
--- cfe/trunk/CodeGen/CGExpr.cpp (original)
+++ cfe/trunk/CodeGen/CGExpr.cpp Mon Aug 20 13:05:56 2007
@@ -14,6 +14,7 @@
 #include "CodeGenFunction.h"
 #include "CodeGenModule.h"
 #include "clang/AST/AST.h"
+#include "clang/Lex/IdentifierTable.h"
 #include "llvm/Constants.h"
 #include "llvm/DerivedTypes.h"
 #include "llvm/Function.h"
@@ -660,6 +661,15 @@
 }
 
 RValue CodeGenFunction::EmitCallExpr(const CallExpr *E) {
+  if (const ImplicitCastExpr *IcExpr = 
+      dyn_cast<const ImplicitCastExpr>(E->getCallee()))
+    if (const DeclRefExpr *DRExpr = 
+        dyn_cast<const DeclRefExpr>(IcExpr->getSubExpr()))
+      if (const FunctionDecl *FDecl = 
+          dyn_cast<const FunctionDecl>(DRExpr->getDecl()))
+        if (unsigned builtinID = FDecl->getIdentifier()->getBuiltinID())
+          return EmitBuiltinExpr(builtinID, E);
+        
   llvm::Value *Callee = EmitExpr(E->getCallee()).getVal();
   
   // The callee type will always be a pointer to function type, get the function

Modified: cfe/trunk/CodeGen/CodeGenFunction.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/CodeGen/CodeGenFunction.h?rev=41188&r1=41187&r2=41188&view=diff

==============================================================================
--- cfe/trunk/CodeGen/CodeGenFunction.h (original)
+++ cfe/trunk/CodeGen/CodeGenFunction.h Mon Aug 20 13:05:56 2007
@@ -352,6 +352,7 @@
    
   RValue EmitCastExpr(const Expr *Op, QualType DestTy);
   RValue EmitCallExpr(const CallExpr *E);
+  RValue EmitBuiltinExpr(unsigned builtinID, const CallExpr *E);
   RValue EmitArraySubscriptExprRV(const ArraySubscriptExpr *E);
 
   // Unary Operators.