<div dir="ltr">Why does format_hex prints out "0x" prefix in the first place? If it doesn't, like printf %x, we don't need an extra parameter or a separate function. It may be too late, though.</div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Jan 23, 2015 at 1:46 PM, Chandler Carruth <span dir="ltr"><<a href="mailto:chandlerc@google.com" target="_blank">chandlerc@google.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Yea, formatting should just support this...</div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Jan 23, 2015 at 1:18 PM, Zachary Turner <span dir="ltr"><<a href="mailto:zturner@google.com" target="_blank">zturner@google.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span>In <a href="http://reviews.llvm.org/D7151#112909" target="_blank">http://reviews.llvm.org/D7151#112909</a>, @majnemer wrote:<br>
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> Why not just use `llvm::utohexstr`?<br>
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</span>Isn't that less efficient than just writing directly to the stream?  Results in one heap allocation for every byte.<br>
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