[all-commits] [llvm/llvm-project] a0fcb5: [ARM] Improve arm_neon.h header diagnostic when in...

[Jon Roelofs via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: a0fcb50bf99d1d48458ee27ca92e5cd54e9910d5
      https://github.com/llvm/llvm-project/commit/a0fcb50bf99d1d48458ee27ca92e5cd54e9910d5
  Author: Jon Roelofs <jonathan_roelofs at apple.com>
  Date:   2025-07-11 (Fri, 11 Jul 2025)

  Changed paths:
    M clang/utils/TableGen/NeonEmitter.cpp

  Log Message:
  -----------
  [ARM] Improve arm_neon.h header diagnostic when included on unsupported targets (#147817)

The footgun here was that the preprocessor diagnostic that looks for
__ARM_FP would fire when included on targets like x86_64, but the
suggestion it gives in that case is totally bogus. Avoid giving bad
advice, by first checking whether we're being built for an appropriate
target, and only then do the soft-fp check.

rdar://155449666



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