[PATCH] Fix bug 19437 - Only add discriminators for DWARF 4 and above.

[Chandler Carruth]

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Comment at: include/llvm/Support/Dwarf.h:957
@@ +956,3 @@
+/// Return Dwarf Version by checking module flags.
+inline unsigned getDwarfVersionFromModule(const Module *M) {
+  Value *Val = M->getModuleFlag("Dwarf Version");
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David Blaikie wrote:
> This might be worth being out of line, maybe. Not a big deal.
As Eric was indicating, this can't be in Support. I think this should be a method on Module personally. It needs to be somewhere in the IR library at least.


http://reviews.llvm.org/D3413