[all-commits] [llvm/llvm-project] f60b35: Stop traping on sNaN in __builtin_isinf

[RoboTux via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f60b35340fd70acb3c8003349931f085305886ad
      https://github.com/llvm/llvm-project/commit/f60b35340fd70acb3c8003349931f085305886ad
  Author: Thomas Preud'homme <thomasp at graphcore.ai>
  Date:   2021-03-15 (Mon, 15 Mar 2021)

  Changed paths:
    M clang/lib/CodeGen/CGBuiltin.cpp
    M clang/test/CodeGen/X86/strictfp_builtins.c
    M clang/test/CodeGen/aarch64-strictfp-builtins.c
    M clang/test/CodeGen/builtin_float_strictfp.c
    M clang/test/CodeGen/strictfp_builtins.c

  Log Message:
  -----------
  Stop traping on sNaN in __builtin_isinf

__builtin_isinf currently generates a floating-point compare operation
which triggers a trap when faced with a signaling NaN in StrictFP mode.
This commit uses integer operations instead to not generate any trap in
such a case.

Reviewed By: mibintc

Differential Revision: https://reviews.llvm.org/D97125