[PATCH] D61392: [clang] Handle lround/llround builtins

[Adhemerval Zanella via Phabricator via cfe-commits]

zatrazz created this revision.
zatrazz added reviewers: efriedma, rengolin, javed.absar, huntergr, SjoerdMeijer, t.p.northover, echristo, evandro.
zatrazz added a project: clang.
Herald added subscribers: kristina, kristof.beyls.

As for other floating-point rounding builtins that can be optimized
when build with -fno-math-errno, this patch adds support for lround
and llround.  It currently only optimized for AArch64 backend.

This patch depends on https://reviews.llvm.org/D61390


Repository:
  rC Clang

https://reviews.llvm.org/D61392

Files:
  clang/lib/CodeGen/CGBuiltin.cpp
  clang/test/CodeGen/builtins.c
  clang/test/CodeGen/math-builtins.c
  clang/test/CodeGen/math-libcalls.c

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