diff --git a/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp b/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp index 5bd8617ccf28..de3241504dc1 100644 --- a/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp +++ b/llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp @@ -109,6 +109,8 @@ namespace { bool doFinalization(Module &M); virtual void EmitFunctionEntryLabel(); + + void EmitFunctionBodyEnd(); }; /// PPCDarwinAsmPrinter - PowerPC assembly printer, customized for Darwin/Mac @@ -450,6 +452,19 @@ bool PPCLinuxAsmPrinter::doFinalization(Module &M) { return AsmPrinter::doFinalization(M); } +/// EmitFunctionBodyEnd - Print the traceback table before the .size +/// directive. +/// +void PPCLinuxAsmPrinter::EmitFunctionBodyEnd() { + // Only the 64-bit target requires a traceback table. For now, + // we only emit the word of zeroes that GDB requires to find + // the end of the function. + // FIXME: Eventually we should add the eight-byte mandatory fields + // described in the PPC64 ELF ABI. + if (Subtarget.isPPC64()) + OutStreamer.EmitIntValue(0, 4/*size*/); +} + void PPCDarwinAsmPrinter::EmitStartOfAsmFile(Module &M) { static const char *const CPUDirectives[] = { "", diff --git a/llvm/test/CodeGen/PowerPC/pr13641.ll b/llvm/test/CodeGen/PowerPC/pr13641.ll new file mode 100644 index 000000000000..e80fbea36d62 --- /dev/null +++ b/llvm/test/CodeGen/PowerPC/pr13641.ll @@ -0,0 +1,10 @@ +; RUN: llc < %s | FileCheck %s +target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v128:128:128-n32:64" +target triple = "powerpc64-unknown-linux-gnu" + +define void @foo() nounwind { + ret void +} + +; CHECK: blr +; CHECK-NEXT: .long 0