diff options
| author | Thomas Lively <7121787+tlively@users.noreply.github.com> | 2021-02-01 16:53:01 -0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-02-01 16:53:01 -0800 |
| commit | b5c287567ebcb3cbb1b1acb7f9e717f8b834ea83 (patch) | |
| tree | 158cb452f58553cc0244d98c45e9d2b2705c1bbd /src/wasm/wasm-stack.cpp | |
| parent | a4837c095275b465005841616ff10bcd0b0d7996 (diff) | |
| download | binaryen-b5c287567ebcb3cbb1b1acb7f9e717f8b834ea83.tar.gz binaryen-b5c287567ebcb3cbb1b1acb7f9e717f8b834ea83.tar.bz2 binaryen-b5c287567ebcb3cbb1b1acb7f9e717f8b834ea83.zip | |
Prototype i32x4.widen_i8x16_{s,u} (#3535)
As proposed in https://github.com/WebAssembly/simd/pull/395. Note that the other
instructions in the proposal have not been implemented in LLVM or in V8, so
there is no need to implement them in Binaryen right now either. This PR
introduces a new expression class for the new instructions because they uniquely
take an immediate argument identifying which portion of the input vector to
widen.
Diffstat (limited to 'src/wasm/wasm-stack.cpp')
| -rw-r--r-- | src/wasm/wasm-stack.cpp | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/wasm/wasm-stack.cpp b/src/wasm/wasm-stack.cpp index d42080bac..cb8702d0c 100644 --- a/src/wasm/wasm-stack.cpp +++ b/src/wasm/wasm-stack.cpp @@ -691,6 +691,19 @@ void BinaryInstWriter::visitSIMDLoadStoreLane(SIMDLoadStoreLane* curr) { o << curr->index; } +void BinaryInstWriter::visitSIMDWiden(SIMDWiden* curr) { + o << int8_t(BinaryConsts::SIMDPrefix); + switch (curr->op) { + case WidenSVecI8x16ToVecI32x4: + o << U32LEB(BinaryConsts::I32x4WidenSI8x16); + break; + case WidenUVecI8x16ToVecI32x4: + o << U32LEB(BinaryConsts::I32x4WidenUI8x16); + break; + } + o << uint8_t(curr->index); +} + void BinaryInstWriter::visitPrefetch(Prefetch* curr) { o << int8_t(BinaryConsts::SIMDPrefix); switch (curr->op) { |