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userok
2019 Jul 09
2
[LLVM] Infinite loop during LLVM InstructionCombining pass optimization
...ybe take a closer look at the output from `opt
-print-before-all -O3`?
Alternatively you can use bugpoint to minimize the IR to get a small
reproducer that causes `opt -O3` to hang:
http://blog.llvm.org/2015/11/reduce-your-testcases-with-bugpoint-and.html
-- Sanjoy
On Mon, Jul 8, 2019 at 6:02 PM Yuseok Jeon <jeon41 at purdue.edu> wrote:
>
> Thank you for your reply.
>
>
> Could you please let me know how to dump out the IR input to InstCombine?
>
>
> Alternatively, I created bc file and IR input (It did not work with "opt -instcombine < bug.ll") files.
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