Prototype new SIMD multiplications (#3291)

Including saturating, rounding Q15 multiplication as proposed in
https://github.com/WebAssembly/simd/pull/365 and extending multiplications as
proposed in https://github.com/WebAssembly/simd/pull/376. Since these are just
prototypes, skips adding them to the C or JS APIs and the fuzzer, as well as
implementing them in the interpreter.

1 files changed, 40 insertions, 0 deletions

diff --git a/src/wasm/literal.cpp b/src/wasm/literal.cpp
index f549a9ca6..6d0a0fee7 100644
--- a/src/wasm/literal.cpp
+++ b/src/wasm/literal.cpp
@@ -2100,6 +2100,9 @@ Literal Literal::maxUI16x8(const Literal& other) const {
 Literal Literal::avgrUI16x8(const Literal& other) const {
   return binary<8, &Literal::getLanesUI16x8, &Literal::avgrUInt>(*this, other);
 }
+Literal Literal::q15MulrSatSI16x8(const Literal& other) const {
+  WASM_UNREACHABLE("TODO: implement Q15 rounding, saturating multiplication");
+}
 Literal Literal::addI32x4(const Literal& other) const {
   return binary<4, &Literal::getLanesI32x4, &Literal::add>(*this, other);
 }
@@ -2277,6 +2280,43 @@ Literal Literal::widenHighUToVecI32x4() const {
   return widen<4, &Literal::getLanesUI16x8, LaneOrder::High>(*this);
 }
 
+Literal Literal::extMulLowSI16x8(const Literal& other) const {
+  WASM_UNREACHABLE("TODO: implement SIMD extending multiplications");
+}
+Literal Literal::extMulHighSI16x8(const Literal& other) const {
+  WASM_UNREACHABLE("TODO: implement SIMD extending multiplications");
+}
+Literal Literal::extMulLowUI16x8(const Literal& other) const {
+  WASM_UNREACHABLE("TODO: implement SIMD extending multiplications");
+}
+Literal Literal::extMulHighUI16x8(const Literal& other) const {
+  WASM_UNREACHABLE("TODO: implement SIMD extending multiplications");
+}
+Literal Literal::extMulLowSI32x4(const Literal& other) const {
+  WASM_UNREACHABLE("TODO: implement SIMD extending multiplications");
+}
+Literal Literal::extMulHighSI32x4(const Literal& other) const {
+  WASM_UNREACHABLE("TODO: implement SIMD extending multiplications");
+}
+Literal Literal::extMulLowUI32x4(const Literal& other) const {
+  WASM_UNREACHABLE("TODO: implement SIMD extending multiplications");
+}
+Literal Literal::extMulHighUI32x4(const Literal& other) const {
+  WASM_UNREACHABLE("TODO: implement SIMD extending multiplications");
+}
+Literal Literal::extMulLowSI64x2(const Literal& other) const {
+  WASM_UNREACHABLE("TODO: implement SIMD extending multiplications");
+}
+Literal Literal::extMulHighSI64x2(const Literal& other) const {
+  WASM_UNREACHABLE("TODO: implement SIMD extending multiplications");
+}
+Literal Literal::extMulLowUI64x2(const Literal& other) const {
+  WASM_UNREACHABLE("TODO: implement SIMD extending multiplications");
+}
+Literal Literal::extMulHighUI64x2(const Literal& other) const {
+  WASM_UNREACHABLE("TODO: implement SIMD extending multiplications");
+}
+
 Literal Literal::swizzleVec8x16(const Literal& other) const {
   auto lanes = getLanesUI8x16();
   auto indices = other.getLanesUI8x16();