[API][Backend] Enable using constants in intrinsic calls

cornell-zhang / heterocl

HeteroCL: A Multi-Paradigm Programming Infrastructure for Software-Defined Heterogeneous Computing

https://cornell-zhang.github.io/heterocl/

Apache License 2.0

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[API][Backend] Enable using constants in intrinsic calls #131

Closed seanlatias closed 5 years ago

seanlatias commented 5 years ago

In this PR, we also move some of the typecasting to LLVM level. This allows other backends to decide what to do when having intrinsic calls with different types.