[LLVMdev] Why would one use SExt vs CreateIntCast

[Dave Pitsbawn]

I'm seeing many APIs which seemingly do the same thing, but they seem to go
through slightly different code paths.

When I think of integer casts I think sign extension, zero extension or
truncation. But there seems to be a IntCast ... which does the same thing?

Why does CreateIntCast API exist (same for FP methods as well)?
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