[LLVMbugs] [Bug 22883] Assertion `(InputFlag & ~0xffff) == 0 && "High bits already contain data"' failed.

[bugzilla-daemon at llvm.org]

https://llvm.org/bugs/show_bug.cgi?id=22883

Daniel Sanders <daniel.sanders at imgtec.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #2 from Daniel Sanders <daniel.sanders at imgtec.com> ---
Thanks. I've re-committed with a fix for this in 232165.

The main problem was simply that matching operands copied too much of the flag
word from their matched operand. As a result, the bits weren't empty (they
contained the matched operands' constraint id) and it triggered the assertion.
A second problem was that the operand number from a matching operand would be
also be used as the constraint id. Matching operands now obtain the constraint
id from the matched operand.

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