Add command line option to disable debug info printing in .s file. This option does not impact debug info generation and preservation through earlier compile starges.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102012 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 0 deletions

diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index 7588bbb930..6e877c7e3a 100644
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -44,6 +44,9 @@ using namespace llvm;
 static cl::opt<bool> PrintDbgScope("print-dbgscope", cl::Hidden,
      cl::desc("Print DbgScope information for each machine instruction"));
 
+static cl::opt<bool> DisableDebugInfoPrinting("disable-debug-info-print", cl::Hidden,
+     cl::desc("Disable debug info printing"));
+
 namespace {
   const char *DWARFGroupName = "DWARF Emission";
   const char *DbgTimerName = "DWARF Debug Writer";
@@ -1853,6 +1856,9 @@ void DwarfDebug::constructSubprogramDIE(MDNode *N) {
 /// content. Create global DIEs and emit initial debug info sections.
 /// This is inovked by the target AsmPrinter.
 void DwarfDebug::beginModule(Module *M) {
+  if (DisableDebugInfoPrinting)
+    return;
+
   DebugInfoFinder DbgFinder;
   DbgFinder.processModule(*M);