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...verifier considers it an undefined register. Also, it's probably easier to reduce test cases using bugpoint starting from an IR test case. With the code you provided, I get a different crash than what you apparently get. Here are the test case and the backtrace. Test case: https://pastebin.com/fxjRtJD0 Backtrace: https://pastebin.com/FsXMvbGK Nemanja On Mon, Mar 19, 2018 at 11:51 PM, Sean Fertile via llvm-dev < llvm-dev at lists.llvm.org> wrote: > Hello Valentin, > > To generate a mir test case i think the process is to first create an IR > file by passing '-S -emit-llvm&...

...undefined register. > Also, it's probably easier to reduce test cases using bugpoint starting > from an IR test case. With the code you provided, I get a different crash > than what you apparently get. Here are the test case and the backtrace. > > Test case: https://pastebin.com/fxjRtJD0 > Backtrace: https://pastebin.com/FsXMvbGK > > Nemanja > > On Mon, Mar 19, 2018 at 11:51 PM, Sean Fertile via llvm-dev < > llvm-dev at lists.llvm.org> wrote: > >> Hello Valentin, >> >> To generate a mir test case i think the process is to first create an...

...>> Also, it's probably easier to reduce test cases using bugpoint starting >> from an IR test case. With the code you provided, I get a different crash >> than what you apparently get. Here are the test case and the backtrace. >> >> Test case: https://pastebin.com/fxjRtJD0 >> Backtrace: https://pastebin.com/FsXMvbGK >> >> Nemanja >> >> On Mon, Mar 19, 2018 at 11:51 PM, Sean Fertile via llvm-dev < >> llvm-dev at lists.llvm.org> wrote: >> >>> Hello Valentin, >>> >>> To generate a mir test case i...

...it's probably easier to reduce test cases using bugpoint starting >>> from an IR test case. With the code you provided, I get a different crash >>> than what you apparently get. Here are the test case and the backtrace. >>> >>> Test case: https://pastebin.com/fxjRtJD0 >>> Backtrace: https://pastebin.com/FsXMvbGK >>> >>> Nemanja >>> >>> On Mon, Mar 19, 2018 at 11:51 PM, Sean Fertile via llvm-dev >>> <llvm-dev at lists.llvm.org> wrote: >>>> >>>> Hello Valentin, >>>> &gt...

Hello Valentin, To generate a mir test case i think the process is to first create an IR file by passing '-S -emit-llvm' to clang, then you can feed that file into llc and use stop-before to get the mir just before the if-converter pass, eg: `llc -stop-before=if-converter -simplify-mir -o test.mir test.ll`. Also there is a MIR language reference: https://llvm.org/docs/MIRLangRef.html

Hello, I am trying to isolate an assertion failure in if-converter (on PPC) and I generated a textual debuglog with: ``` LLVM_ARGS=-print-before-all -print-module-scope -filter-print-funcs=japi1__require_7687 ``` and after splicing out the the MIR before the if-converter pass I would like to run `llc -march=ppc64le -run-pass=if-converter input.mir` so that I can start minimising the MIR. This