<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Mar 12, 2015 at 2:39 PM, Adrian Prantl <span dir="ltr"><<a href="mailto:aprantl@apple.com" target="_blank">aprantl@apple.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">[Just noticed that I forgot to rename MayUsePieceForSubRegMask in DwarfCompileUnit.]<br>
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The problem is that the TargetRegisterInfo tells us that the frame register is ebp, for which there is no separate register number, </blockquote><div><br>Well, we don't have one listed, but GDB/GCC might have one? Since the register numbering is an implementation detail, not part of the DWARF spec. But I haven't looked/wouldn't really know where to look to see if it's just a matter of us adding the appropriate number.<br> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">so it must be constructed from rbp. The DWARF backend doesn't know about what is in the upper half of rbp so it must mask out the upper bits.<br>
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<a href="http://reviews.llvm.org/D8233" target="_blank">http://reviews.llvm.org/D8233</a><br>
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