[PATCH] D37364: [DWARF] Line 0 should not have a discriminator

[Paul Robinson via Phabricator via llvm-commits]

probinson created this revision.
Herald added a subscriber: JDevlieghere.

We have line 0 inherit the scope of the previous non-zero line, to limit the size cost of the line 0 records; but that scope might have a discriminator attached, and a discriminator on line 0 is pointless.


https://reviews.llvm.org/D37364

Files:
  lib/CodeGen/AsmPrinter/DwarfDebug.cpp
  test/CodeGen/Generic/dbg-line-0-no-discriminator.ll

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