Make debug info come out in data-only files.

This is a question of the debugging setup code not
being called at the right time, and it's called from
target-dependent code for some reason.  I have only
attempted to fix Darwin, but I'm pretty sure it's
broken elsewhere; I'll leave that to people who can
test it.

llvm-svn: 53254

1 files changed, 8 insertions, 3 deletions

diff --git a/llvm/lib/Target/ARM/ARMAsmPrinter.cpp b/llvm/lib/Target/ARM/ARMAsmPrinter.cpp
index 23e5e37cf06..25b42c5db8f 100644
--- a/llvm/lib/Target/ARM/ARMAsmPrinter.cpp
+++ b/llvm/lib/Target/ARM/ARMAsmPrinter.cpp
@@ -42,11 +42,13 @@ STATISTIC(EmittedInsts, "Number of machine instrs printed");
 namespace {
   struct VISIBILITY_HIDDEN ARMAsmPrinter : public AsmPrinter {
     ARMAsmPrinter(std::ostream &O, TargetMachine &TM, const TargetAsmInfo *T)
-      : AsmPrinter(O, TM, T), DW(O, this, T), AFI(NULL), InCPMode(false) {
+      : AsmPrinter(O, TM, T), DW(O, this, T), MMI(0), AFI(NULL), 
+        InCPMode(false) {
       Subtarget = &TM.getSubtarget<ARMSubtarget>();
     }
 
     DwarfWriter DW;
+    MachineModuleInfo *MMI;
 
     /// Subtarget - Keep a pointer to the ARMSubtarget around so that we can
     /// make the right decision when printing asm code for different targets.
@@ -176,8 +178,6 @@ FunctionPass *llvm::createARMCodePrinterPass(std::ostream &o,
 bool ARMAsmPrinter::runOnMachineFunction(MachineFunction &MF) {
   AFI = MF.getInfo<ARMFunctionInfo>();
 
-  DW.SetModuleInfo(&getAnalysis<MachineModuleInfo>());
-
   SetupMachineFunction(MF);
   O << "\n";
 
@@ -800,6 +800,11 @@ bool ARMAsmPrinter::doInitialization(Module &M) {
   
   bool Result = AsmPrinter::doInitialization(M);
 
+  // AsmPrinter::doInitialization should have done this analysis.
+  MMI = getAnalysisToUpdate<MachineModuleInfo>();
+  assert(MMI);
+  DW.SetModuleInfo(MMI);
+
   // Darwin wants symbols to be quoted if they have complex names.
   if (Subtarget->isTargetDarwin())
     Mang->setUseQuotes(true);