[llvm-bugs] [Bug 52095] New: Front end driver does not allow multiple dump options

via llvm-bugs llvm-bugs at lists.llvm.org
Wed Oct 6 11:24:37 PDT 2021


            Bug ID: 52095
           Summary: Front end driver does not allow multiple dump options
           Product: flang
           Version: unspecified
          Hardware: PC
                OS: All
            Status: NEW
          Severity: release blocker
          Priority: P
         Component: Driver
          Assignee: unassignedbugs at nondot.org
          Reporter: psteinfeld at nvidia.com
                CC: andrzej.warzynski at gmail.com, David.Truby at arm.com,
                    jperier at nvidia.com, kirankumartp at gmail.com,
                    llvm-bugs at lists.llvm.org, sscalpone at nvidia.com

If I specify more than one option to the front end driver, only the last one
gets accepted.  Furthermore, no error message appears saying that one of the
options was ignored.

Here's an example invocation which only dumps the symbol table:
  flang-new -fc1 -fdebug-unparse -fdebug-dump-symbols hello.f90 

I realize that this is a documented limitation, but I believe that we need to
be able to specify multiple dump options at the same time.

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