[llvm-bugs] [Bug 51893] New: llc crashes on NVPTX target when f80 parameters are passed by value.

via llvm-bugs llvm-bugs at lists.llvm.org
Fri Sep 17 12:52:26 PDT 2021


https://bugs.llvm.org/show_bug.cgi?id=51893

            Bug ID: 51893
           Summary: llc crashes on NVPTX target when f80 parameters are
                    passed by value.
           Product: libraries
           Version: 12.0
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Backend: PTX
          Assignee: unassignedbugs at nondot.org
          Reporter: lightborn at gmail.com
                CC: llvm-bugs at lists.llvm.org

Created attachment 25268
  --> https://bugs.llvm.org/attachment.cgi?id=25268&action=edit
compile with llc to crash

llc crashes when lowering f80 function arguments in the NVPTX kernel.

I'd like to be able to pass these arguments to NVPTX functions. I can provide
definitions for math ops that emulate the f80 instructions.. but still need to
pass the parameters around.

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