Implement a FIXME. This improves codegen just a tad.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83221 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 10 insertions, 9 deletions

diff --git a/lib/CodeGen/CGBlocks.cpp b/lib/CodeGen/CGBlocks.cpp
index ba14fea36e..79950e8c6b 100644
--- a/lib/CodeGen/CGBlocks.cpp
+++ b/lib/CodeGen/CGBlocks.cpp
@@ -663,20 +663,23 @@ CodeGenFunction::GenerateBlockFunction(const BlockExpr *BExpr,
   StartFunction(BD, ResultType, Fn, Args,
                 BExpr->getBody()->getLocEnd());
 
+  CurFuncDecl = OuterFuncDecl;
+  CurCodeDecl = BD;
+
   // Save a spot to insert the debug information for all the BlockDeclRefDecls.
   llvm::BasicBlock *entry = Builder.GetInsertBlock();
+  llvm::BasicBlock::iterator entry_ptr = Builder.GetInsertPoint();
+  --entry_ptr;
 
-  CurFuncDecl = OuterFuncDecl;
-  CurCodeDecl = BD;
-  // FIXME: Can we straighten this out not using multiple basic blocks?
-  // Set body aside for now.
-  llvm::BasicBlock *body = createBasicBlock("body");
-  Builder.SetInsertPoint(body);
   EmitStmt(BExpr->getBody());
+
   // Remember where we were...
   llvm::BasicBlock *resume = Builder.GetInsertBlock();
+
   // Go back to the entry.
-  Builder.SetInsertPoint(entry);
+  ++entry_ptr;
+  Builder.SetInsertPoint(entry, entry_ptr);
+
   if (CGDebugInfo *DI = getDebugInfo()) {
     // Emit debug information for all the BlockDeclRefDecls.
     for (unsigned i=0; i < BlockDeclRefDecls.size(); ++i) {
@@ -691,8 +694,6 @@ CodeGenFunction::GenerateBlockFunction(const BlockExpr *BExpr,
       }
     }
   }
-  // And now go back to the body
-  EmitBlock(body);
   // And resume where we left off.
   if (resume == 0)
     Builder.ClearInsertionPoint();