[llvm-dev] [poison] re: is select-of-select to logic+select allowed ?

Peter Lawrence via llvm-dev llvm-dev at lists.llvm.org
Tue Aug 15 12:06:21 PDT 2017


Dan,
        Many thanks for pointing this out,
Will look into it when back from vacation in Sept.
Peter Lawrence.


> On Aug 10, 2017, at 1:59 AM, Dan Liew <dan at su-root.co.uk> wrote:
> 
> On 7 June 2017 at 04:25, Peter Lawrence via llvm-dev
> <llvm-dev at lists.llvm.org> wrote:
>> Nuno,
>> Sanjoy,
>>            Can you provide some actual C source code examples that show how
>> End-to-end-miscompilations have resulted from the presence of “UB” in
>> Select statements ?
> 
> We hit an example of this recently. See
> https://bugs.llvm.org/show_bug.cgi?id=34133



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