[PATCH] D120403: [WIP][Flang] Lower Fortran intrinsic to a runtime call/llvm intr

[Kiran Chandramohan via Phabricator via llvm-commits]

kiranchandramohan created this revision.
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This patch brings in code which can lower a Fortran intrinsic to
a runtime call or an llvm intrinsic. For math intrinsics the
runtime call is to the `pgmath` library. Non-math intrinsics are
covered by the Flang runtime.

The `abs` intrinsic is lowered.

This patch,
-> was originally written by Jean Perier <jperier at nvidia.com>, Eric Schweitz <eschweitz at nvidia.com>,
zacharyselk <zrselk at gmail.com>, V Donaldson <vdonaldson at nvidia.com>, Valentin Clement <clementval at gmail.com>
-> is part of upstreaming from the fir-dev branch of https://github.com/flang-compiler/f18-llvm-project


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D120403

Files:
  flang/lib/Lower/IntrinsicCall.cpp

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