[all-commits] [llvm/llvm-project] 8a3277: [WebAssembly] Implement prototype f32.store_f16 in...

[Brendan Dahl via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 8a3277acbc7b7af917f570f7d6430dda41c4d9ee
      https://github.com/llvm/llvm-project/commit/8a3277acbc7b7af917f570f7d6430dda41c4d9ee
  Author: Brendan Dahl <brendan.dahl at gmail.com>
  Date:   2024-05-09 (Thu, 09 May 2024)

  Changed paths:
    M clang/include/clang/Basic/BuiltinsWebAssembly.def
    M clang/lib/CodeGen/CGBuiltin.cpp
    M clang/test/CodeGen/builtins-wasm.c
    M llvm/include/llvm/IR/IntrinsicsWebAssembly.td
    M llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCTargetDesc.h
    M llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp
    M llvm/lib/Target/WebAssembly/WebAssemblyInstrMemory.td
    M llvm/test/CodeGen/WebAssembly/half-precision.ll
    M llvm/test/CodeGen/WebAssembly/offset.ll
    M llvm/test/MC/WebAssembly/simd-encodings.s

  Log Message:
  -----------
  [WebAssembly] Implement prototype f32.store_f16 instruction. (#91545)

Adds a builtin and intrinsic for the f32.store_f16 instruction.

The instruction stores an f32 value as an f16 memory. Specified at:

https://github.com/WebAssembly/half-precision/blob/29a9b9462c9285d4ccc1a5dc39214ddfd1892658/proposals/half-precision/Overview.md

Note: the current spec has f32.store_f16 as opcode 0xFD0121, but this is
incorrect and will be changed to 0xFC31 soon.



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