diff options
Diffstat (limited to 'lib/CodeGen/CGStmt.cpp')
-rw-r--r-- | lib/CodeGen/CGStmt.cpp | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/lib/CodeGen/CGStmt.cpp b/lib/CodeGen/CGStmt.cpp index 62e465d702..f58b579267 100644 --- a/lib/CodeGen/CGStmt.cpp +++ b/lib/CodeGen/CGStmt.cpp @@ -282,6 +282,7 @@ void CodeGenFunction::EmitGotoStmt(const GotoStmt &S) { EmitBranchThroughCleanup(getBasicBlockForLabel(S.getLabel())); } + void CodeGenFunction::EmitIndirectGotoStmt(const IndirectGotoStmt &S) { // Emit initial switch which will be patched up later by // EmitIndirectSwitches(). We need a default dest, so we use the @@ -289,11 +290,17 @@ void CodeGenFunction::EmitIndirectGotoStmt(const IndirectGotoStmt &S) { llvm::Value *V = Builder.CreatePtrToInt(EmitScalarExpr(S.getTarget()), llvm::Type::getInt32Ty(VMContext), "addr"); - llvm::SwitchInst *I = Builder.CreateSwitch(V, Builder.GetInsertBlock()); - IndirectSwitches.push_back(I); - - // Clear the insertion point to indicate we are in unreachable code. - Builder.ClearInsertionPoint(); + llvm::BasicBlock *CurBB = Builder.GetInsertBlock(); + + + // Get the basic block for the indirect goto. + llvm::BasicBlock *IndGotoBB = GetIndirectGotoBlock(); + + // The first instruction in the block has to be the PHI for the switch dest, + // add an entry for this branch. + cast<llvm::PHINode>(IndGotoBB->begin())->addIncoming(V, CurBB); + + EmitBranch(IndGotoBB); } void CodeGenFunction::EmitIfStmt(const IfStmt &S) { |