diff options
| -rw-r--r-- | lib/CodeGen/AsmPrinter/AsmPrinter.cpp | 12 | ||||
| -rw-r--r-- | test/CodeGen/X86/pr11202.ll | 19 |
2 files changed, 31 insertions, 0 deletions
diff --git a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp index ec4d30c..18670fe 100644 --- a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp +++ b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp @@ -736,6 +736,18 @@ void AsmPrinter::EmitFunctionBody() { OutStreamer.EmitRawText(StringRef("\tnop\n")); } + const Function *F = MF->getFunction(); + for (Function::const_iterator i = F->begin(), e = F->end(); i != e; ++i) { + const BasicBlock *BB = i; + if (!BB->hasAddressTaken()) + continue; + MCSymbol *Sym = GetBlockAddressSymbol(BB); + if (Sym->isDefined()) + continue; + OutStreamer.AddComment("Address of block that was removed by CodeGen"); + OutStreamer.EmitLabel(Sym); + } + // Emit target-specific gunk after the function body. EmitFunctionBodyEnd(); diff --git a/test/CodeGen/X86/pr11202.ll b/test/CodeGen/X86/pr11202.ll new file mode 100644 index 0000000..2b26a69 --- /dev/null +++ b/test/CodeGen/X86/pr11202.ll @@ -0,0 +1,19 @@ +; RUN: llc < %s -mtriple=x86_64-pc-linux | FileCheck %s + +@bb = constant [1 x i8*] [i8* blockaddress(@main, %l2)] + +define void @main() { +entry: + br label %l1 + +l1: ; preds = %l2, %entry + %a = zext i1 false to i32 + br label %l2 + +l2: ; preds = %l1 + %b = zext i1 false to i32 + br label %l1 +} + +; CHECK: .Ltmp1: # Address of block that was removed by CodeGen +; CHECK: .quad .Ltmp1 |