[PATCH] D132193: [FastISel] Respect musttail over "disable-tail-calls"

[Arthur Eubanks via Phabricator via llvm-commits]

aeubanks added a comment.

https://llvm.org/docs/LangRef.html#call-instruction
`The musttail marker means that the call must be tail call optimized in order for the program to be correct.` I read this as regardless of any attributes
And SelectionDAG properly handles this


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  https://reviews.llvm.org/D132193/new/

https://reviews.llvm.org/D132193