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On Fri, Apr 5, 2013 at 1:42 PM, Cameron McInally <cameron.mcinally at nyu.edu>wrote: > This is quite a conundrum to me. Yes, I agree with you on the C/C++ > Standards interpretation. However, the x86-64 expectations are orthogonal. > I find that other compilers, including GCC, will trap by default at high > optimization levels on x86-64 for this test case. Hardly scientific, but

On Fri, Apr 5, 2013 at 2:40 PM, Joshua Cranmer 🐧 <Pidgeot18 at gmail.com>wrote: ... > Per C and C++, integer division by 0 is undefined. That means, if it > happens, the compiler is free to do whatever it wants. It is perfectly > legal for LLVM to define r to be, say, 42 in this code; it is not required > to preserve the fact that the idiv instruction on x86 and x86-64 will

...Fortran program. Rather than wrong answers, I would like to see a hard error indicating that a program is non-conforming to the Standard. -Cameron > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20130405/62181469/attachment.html>