<div dir="ltr">Can't you add __attribute__((format(printf))); to the constructor?  That would catch these issues.</div><br><div class="gmail_quote"><div dir="ltr">On Wed, Oct 5, 2016 at 9:05 AM Mehdi AMINI via llvm-commits <<a href="mailto:llvm-commits@lists.llvm.org">llvm-commits@lists.llvm.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">mehdi_amini added a comment.<br class="gmail_msg">
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This is also catching existing latent bugs in the codebase:<br class="gmail_msg">
<br class="gmail_msg">
  In file included from /llvm-project/llvm/lib/Target/PowerPC/PPCVSXSwapRemoval.cpp:55:<br class="gmail_msg">
  /llvm-project/llvm/include/llvm/Support/Format.h:82:3: error: static_assert failed "format can't be used with non fundamental / non pointer type"<br class="gmail_msg">
    static_assert(std::is_scalar<Arg>::value,<br class="gmail_msg">
    ^             ~~~~~~~~~~~~~~~~~~~~~~~~~~<br class="gmail_msg">
  /llvm-project/llvm/include/llvm/Support/Format.h:105:5: note: in instantiation of template class 'llvm::validate_format_parameters<llvm::StringRef>' requested here<br class="gmail_msg">
      validate_format_parameters<Ts...>();<br class="gmail_msg">
      ^<br class="gmail_msg">
  /llvm-project/llvm/include/llvm/Support/Format.h:124:10: note: in instantiation of member function 'llvm::format_object<llvm::StringRef>::format_object' requested here<br class="gmail_msg">
    return format_object<Ts...>(Fmt, Vals...);<br class="gmail_msg">
           ^<br class="gmail_msg">
  /llvm-project/llvm/lib/Target/PowerPC/PPCVSXSwapRemoval.cpp:965:21: note: in instantiation of function template specialization 'llvm::format<llvm::StringRef>' requested here<br class="gmail_msg">
      DEBUG(dbgs() << format("  %14s  ", TII->getName(MI->getOpcode())));<br class="gmail_msg">
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<a href="https://reviews.llvm.org/D25266" rel="noreferrer" class="gmail_msg" target="_blank">https://reviews.llvm.org/D25266</a><br class="gmail_msg">
<br class="gmail_msg">
<br class="gmail_msg">
<br class="gmail_msg">
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</blockquote></div>