[llvm-dev] LiveInterval error with 2 dead defs

[Matt Arsenault via llvm-dev]

> On Oct 7, 2019, at 14:04, Krzysztof Parzyszek via llvm-dev <llvm-dev at lists.llvm.org> wrote:
> 
> The associated patch caused a compilation problems on Hexagon: https://bugs.llvm.org/show_bug.cgi?id=43302 <https://bugs.llvm.org/show_bug.cgi?id=43302>
>  
> The splitting of a live interval should not be done automatically upon creation.  Calling LIS->getInterval(Reg) should not go around changing the code behind the scenes. 
>  
> There is already a function “splitSeparateComponents” that does that.  It should be added where it’s missing.
>  

The patch is using splitSeparateComponents. Where else would it go? The problem is with the initial live interval creation.

-Matt
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