[PATCH] AMDGPU/SI: Add hsa code object directives

[Matt Arsenault]

================
Comment at: lib/Target/AMDGPU/MCTargetDesc/AMDGPUTargetStreamer.cpp:71-72
@@ +70,4 @@
+
+  unsigned NameSZ = 4;
+  StringRef Name = StringRef("AMD", NameSZ);
+
----------------
tstellarAMD wrote:
> arsenm wrote:
> > You can construct it directly
> > StringRef Name("AMD", 4);
> I need to emit the NULL byte at the end, and the NULL byte won't be emitted if I construct it directly, because the StringRef will have length of 3.
You can still directly construct it with the size

http://reviews.llvm.org/D10757

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