[AIX][AsmPrinter] Print Global Variable in comments

[jsji]

Summary

The default AsmPrinter print GV in comments,
AIX should do so too.

This also fix LLVM :: CodeGen/Generic/inline-asm-mem-clobber.ll.

[hubert.reinterpretcast]

llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp

2186

I looks to me that the corresponding code in AsmPrinter::emitGlobalVariable is guarded by GV->hasInitializer().

[jsji]

llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp

2186

Good point, we should align.

[jsji]

Address comments.

[hubert.reinterpretcast]

LGTM; thanks!

llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp

void PPCAIXAsmPrinter::emitGlobalVariableHelper(const GlobalVariable *GV) {
   }
 
   SectionKind GVKind = getObjFileLowering().getKindForGlobal(GV, TM);
   if (!GVKind.isGlobalWriteableData() && !GVKind.isReadOnly() &&
       !GVKind.isThreadLocal()) // Checks for both ThreadData and ThreadBSS.
     report_fatal_error("Encountered a global variable kind that is "
                        "not supported yet.");
 
+  // Print GV in verbose mode
+  if (isVerbose()) {
+    if (GV->hasInitializer()) {
+      GV->printAsOperand(OutStreamer->GetCommentOS(),
+                         /*PrintType=*/false, GV->getParent());
+      OutStreamer->GetCommentOS() << '\n';
+    }
+  }
+
   MCSectionXCOFF *Csect = cast<MCSectionXCOFF>(
       getObjFileLowering().SectionForGlobal(GV, GVKind, TM));
 
   // Switch to the containing csect.
   OutStreamer->SwitchSection(Csect);
 
   const DataLayout &DL = GV->getParent()->getDataLayout();