[cfe-commits] r107091 - /cfe/trunk/lib/CodeGen/CGCall.cpp

[Chris Lattner]

Author: lattner
Date: Mon Jun 28 17:51:39 2010
New Revision: 107091

URL: http://llvm.org/viewvc/llvm-project?rev=107091&view=rev
Log:
make the trivial forms of CreateCoerced{Load|Store} trivial.

Modified:
    cfe/trunk/lib/CodeGen/CGCall.cpp

Modified: cfe/trunk/lib/CodeGen/CGCall.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGCall.cpp?rev=107091&r1=107090&r2=107091&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CGCall.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGCall.cpp Mon Jun 28 17:51:39 2010
@@ -421,6 +421,11 @@
                                       CodeGenFunction &CGF) {
   const llvm::Type *SrcTy =
     cast<llvm::PointerType>(SrcPtr->getType())->getElementType();
+  
+  // If SrcTy and Ty are the same, just do a load.
+  if (SrcTy == Ty)
+    return CGF.Builder.CreateLoad(SrcPtr);
+  
   uint64_t DstSize = CGF.CGM.getTargetData().getTypeAllocSize(Ty);
   
   if (const llvm::StructType *SrcSTy = dyn_cast<llvm::StructType>(SrcTy)) {
@@ -476,11 +481,15 @@
                                bool DstIsVolatile,
                                CodeGenFunction &CGF) {
   const llvm::Type *SrcTy = Src->getType();
-  uint64_t SrcSize = CGF.CGM.getTargetData().getTypeAllocSize(SrcTy);
-  
   const llvm::Type *DstTy =
     cast<llvm::PointerType>(DstPtr->getType())->getElementType();
-
+  if (SrcTy == DstTy) {
+    CGF.Builder.CreateStore(Src, DstPtr, DstIsVolatile);
+    return;
+  }
+  
+  uint64_t SrcSize = CGF.CGM.getTargetData().getTypeAllocSize(SrcTy);
+  
   if (const llvm::StructType *DstSTy = dyn_cast<llvm::StructType>(DstTy)) {
     DstPtr = EnterStructPointerForCoercedAccess(DstPtr, DstSTy, SrcSize, CGF);
     DstTy = cast<llvm::PointerType>(DstPtr->getType())->getElementType();