[PATCH] Use MCFillFragment for zero-initialized data

[Rafael Ávila de Espíndola]

  Please also add a test with a non zero address space. It can be small, say [4 x [4 x i32]], just to make sure it still works.


================
Comment at: lib/MC/MCObjectStreamer.cpp:379
@@ +378,3 @@
+void MCObjectStreamer::EmitZeros(uint64_t NumBytes, unsigned AddrSpace) {
+  assert(AddrSpace == 0 && "Address space must be 0!");
+  unsigned ItemSize = getCurrentSection().first->isVirtualSection() ? 0 : 1;
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I don't think you can assert that. Just forward to MCStreamer::EmitZeros if the address space is not zero.


http://llvm-reviews.chandlerc.com/D1043