[clang] [llvm] [AArch64] Add Neon FP8 conversion intrinsics (PR #119033)

[Momchil Velikov via cfe-commits]

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+// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py UTC_ARGS: --version 5
+// RUN: %clang_cc1        -triple aarch64-none-linux-gnu -target-feature +neon -target-feature +bf16 -target-feature +fp8 -disable-O0-optnone -Werror -Wall -emit-llvm -o - %s | opt -S -p mem2reg,instcombine,tailcallelim | FileCheck %s
+// RUN: %clang_cc1 -x c++ -triple aarch64-none-linux-gnu -target-feature +neon -target-feature +bf16 -target-feature +fp8 -disable-O0-optnone -Werror -Wall -emit-llvm -o - %s | opt -S -p mem2reg,instcombine,tailcallelim | FileCheck %s -check-prefix CHECK-CXX
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momchil-velikov wrote:

Only `mem2reg` left

https://github.com/llvm/llvm-project/pull/119033