[PATCH] Add Position-independent Code model Module API.

[Eric Christopher]

One comment inline.

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Comment at: lib/IR/Module.cpp:472
@@ +471,3 @@
+void Module::setPICLevel(PICLevel::Level PL) {
+  addModuleFlag(ModFlagBehavior::Error, "flag_pic", PL);
+}
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One bike shed: "PIC Level" perhaps? since it's not just -fpic, but also -fPIC?

http://reviews.llvm.org/D5882