rsmith added a subscriber: rsmith.
================
Comment at: include/clang/Frontend/CodeGenOptions.def:164-165
@@ -163,1 +163,4 @@
+CODEGENOPT(DebugTypeExtRefs, 1, 0) ///< Whether or not debug info should
contain
+ ///< external references to a PCH or module.
+
----------------
Does this flag end up in the module hash? It presumably should do so.
================
Comment at: lib/Driver/Tools.cpp:3708
@@ +3707,3 @@
+ CmdArgs.push_back("-dwarf-ext-refs");
+ CmdArgs.push_back("-fmodule-format=obj");
+ }
----------------
What happens if we get a module cache hash collision between module files with
different formats? This didn't really matter when the choice was essentially
made per-platform, but if it's affected by a user-facing -g flag, we should
make sure this works reliably. (You can probably test this by using
`-disable-module-hash` and then using the same module with two different module
formats specified.)
Repository:
rL LLVM
http://reviews.llvm.org/D11958
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