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<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’m trying to do a proof of concept of compiling some code down to a very simple runtime that doesn’t provide support for zeroinitialize. If I run the below code through llc:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">; ModuleID = '.\t.bc'<o:p></o:p></p>
<p class="MsoNormal">target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32"<o:p></o:p></p>
<p class="MsoNormal">target triple = "i686-pc-windows-gnu"<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">@_ZN3Foo11ZeroAndZeroE = global [2 x i32] [i32 0, i32 0], align 4<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">!llvm.ident = !{!0}<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">!0 = !{!"clang version 3.6.0 (tags/RELEASE_360/final)"}<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">It turns into this:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">; ModuleID = '.\t.ll'<o:p></o:p></p>
<p class="MsoNormal">target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32"<o:p></o:p></p>
<p class="MsoNormal">target triple = "i686-pc-windows-gnu"<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">@_ZN3Foo11ZeroAndZeroE = global [2 x i32] <span style="background:yellow;mso-highlight:yellow">
zeroinitializer</span>, align 4<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">!llvm.ident = !{!0}<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">!0 = !{!"clang version 3.6.0 (tags/RELEASE_360/final)"}<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">My question is where is this transform happening – it looks like it’s a byproduct of parsing the ll file which was super surprising to me. And second is there a know what to circumvent this? For my app I just want the zero’d space in
the section so I can copy it into memory.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">-R<o:p></o:p></p>
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