[llvm-bugs] [Bug 37339] New: FunctionComparator::cmpInlineAsm is overly restrictive

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=37339

            Bug ID: 37339
           Summary: FunctionComparator::cmpInlineAsm is overly restrictive
           Product: libraries
           Version: trunk
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Transformation Utilities
          Assignee: unassignedbugs at nondot.org
          Reporter: n.oxyde at gmail.com
                CC: llvm-bugs at lists.llvm.org

cmpInlineAsm will crash with an assertion if the two InlineAsm pointers aren't
equal but their fields are all compared equal. This is overly restrictive,
given two function types may compare equal even if they don't point to the same
function type.

This leads to https://godbolt.org/g/qn3ZNM failing to compile with assertions
on.

Found in https://github.com/rust-lang/rust/pull/49479#issuecomment-386406036.

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