[PATCH] D91733: [compiler-rt] [builtins] Use _Float16 on extendhfsf2, truncdfhf2 __truncsfhf2 if available

[Adhemerval Zanella via Phabricator via llvm-commits]

zatrazz created this revision.
zatrazz added reviewers: ostannard, bryanpkc, atrosinenko, MaskRay.
Herald added subscribers: Sanitizers, kristof.beyls, mgorny, dberris.
Herald added a project: Sanitizers.
zatrazz requested review of this revision.

On AArch64 it allows use the native FP16 ABI (although libcalls are
not emitted for fptrunc/fpext lowering), while on other architectures
the expected current semantic is preserved (arm for instance).


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D91733

Files:
  compiler-rt/lib/builtins/extendhfsf2.c
  compiler-rt/lib/builtins/fp_extend.h
  compiler-rt/lib/builtins/fp_trunc.h
  compiler-rt/lib/builtins/truncdfhf2.c
  compiler-rt/lib/builtins/truncsfhf2.c
  compiler-rt/test/builtins/CMakeLists.txt
  compiler-rt/test/builtins/Unit/extendhfsf2_test.c
  compiler-rt/test/builtins/Unit/truncdfhf2_test.c
  compiler-rt/test/builtins/Unit/truncsfhf2_test.c

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