[wasm] Rename memory.drop and table.drop

The new names for memory.drop and table.drop are data.drop and elem.drop
respectively. See
https://github.com/WebAssembly/bulk-memory-operations/issues/23 and
https://github.com/WebAssembly/bulk-memory-operations/pull/46.

Change-Id: I07aab8448fabe24eb9734dc7dac6f91c570cb553
Reviewed-on: https://chromium-review.googlesource.com/c/1446148
Commit-Queue: Ben Smith <binji@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59261}

src/compiler/wasm-compiler.cc

@@ -4338,7 +4338,7 @@ Node* WasmGraphBuilder::MemoryInit(uint32_t data_segment_index, Node* dst,
   return BuildCCall(&sig, function, dst, src, size);
 }
 
-Node* WasmGraphBuilder::MemoryDrop(uint32_t data_segment_index,
+Node* WasmGraphBuilder::DataDrop(uint32_t data_segment_index,
                                  wasm::WasmCodePosition position) {
   Node* dropped_data_segments =
       CheckDataSegmentIsPassiveAndNotDropped(data_segment_index, position);
@@ -4405,7 +4405,7 @@ Node* WasmGraphBuilder::TableInit(uint32_t table_index,
   return result;
 }
 
-Node* WasmGraphBuilder::TableDrop(uint32_t elem_segment_index,
+Node* WasmGraphBuilder::ElemDrop(uint32_t elem_segment_index,
                                  wasm::WasmCodePosition position) {
   Node* dropped_elem_segments =
       CheckElemSegmentIsPassiveAndNotDropped(elem_segment_index, position);

src/compiler/wasm-compiler.h

@@ -370,14 +370,13 @@ class WasmGraphBuilder {
                    Node* size, wasm::WasmCodePosition position);
   Node* MemoryCopy(Node* dst, Node* src, Node* size,
                    wasm::WasmCodePosition position);
-  Node* MemoryDrop(uint32_t data_segment_index,
-                   wasm::WasmCodePosition position);
+  Node* DataDrop(uint32_t data_segment_index, wasm::WasmCodePosition position);
   Node* MemoryFill(Node* dst, Node* fill, Node* size,
                    wasm::WasmCodePosition position);
 
   Node* TableInit(uint32_t table_index, uint32_t elem_segment_index, Node* dst,
                   Node* src, Node* size, wasm::WasmCodePosition position);
-  Node* TableDrop(uint32_t elem_segment_index, wasm::WasmCodePosition position);
+  Node* ElemDrop(uint32_t elem_segment_index, wasm::WasmCodePosition position);
   Node* TableCopy(uint32_t table_src_index, uint32_t table_dst_index, Node* dst,
                   Node* src, Node* size, wasm::WasmCodePosition position);
 

src/wasm/baseline/liftoff-compiler.cc

@@ -1885,9 +1885,8 @@ class LiftoffCompiler {
                   const Value& src, const Value& size) {
     unsupported(decoder, "memory.init");
   }
-  void MemoryDrop(FullDecoder* decoder,
-                  const MemoryDropImmediate<validate>& imm) {
-    unsupported(decoder, "memory.drop");
+  void DataDrop(FullDecoder* decoder, const DataDropImmediate<validate>& imm) {
+    unsupported(decoder, "data.drop");
   }
   void MemoryCopy(FullDecoder* decoder,
                   const MemoryCopyImmediate<validate>& imm, const Value& dst,
@@ -1903,9 +1902,8 @@ class LiftoffCompiler {
                  Vector<Value> args) {
     unsupported(decoder, "table.init");
   }
-  void TableDrop(FullDecoder* decoder,
-                 const TableDropImmediate<validate>& imm) {
-    unsupported(decoder, "table.drop");
+  void ElemDrop(FullDecoder* decoder, const ElemDropImmediate<validate>& imm) {
+    unsupported(decoder, "elem.drop");
   }
   void TableCopy(FullDecoder* decoder, const TableCopyImmediate<validate>& imm,
                  Vector<Value> args) {

src/wasm/function-body-decoder-impl.h

@@ -479,11 +479,11 @@ struct MemoryInitImmediate {
 };
 
 template <Decoder::ValidateFlag validate>
-struct MemoryDropImmediate {
+struct DataDropImmediate {
   uint32_t index;
   unsigned length;
 
-  inline MemoryDropImmediate(Decoder* decoder, const byte* pc) {
+  inline DataDropImmediate(Decoder* decoder, const byte* pc) {
     index = decoder->read_i32v<validate>(pc + 2, &length, "data segment index");
   }
 };
@@ -521,11 +521,11 @@ struct TableInitImmediate {
 };
 
 template <Decoder::ValidateFlag validate>
-struct TableDropImmediate {
+struct ElemDropImmediate {
   uint32_t index;
   unsigned length;
 
-  inline TableDropImmediate(Decoder* decoder, const byte* pc) {
+  inline ElemDropImmediate(Decoder* decoder, const byte* pc) {
     index = decoder->read_i32v<validate>(pc + 2, &length, "elem segment index");
   }
 };
@@ -713,13 +713,13 @@ struct ControlBase {
     const MemoryAccessImmediate<validate>& imm, Value* result)                \
   F(MemoryInit, const MemoryInitImmediate<validate>& imm, const Value& dst,   \
     const Value& src, const Value& size)                                      \
-  F(MemoryDrop, const MemoryDropImmediate<validate>& imm)                     \
+  F(DataDrop, const DataDropImmediate<validate>& imm)                         \
   F(MemoryCopy, const MemoryCopyImmediate<validate>& imm, const Value& dst,   \
     const Value& src, const Value& size)                                      \
   F(MemoryFill, const MemoryIndexImmediate<validate>& imm, const Value& dst,  \
     const Value& value, const Value& size)                                    \
   F(TableInit, const TableInitImmediate<validate>& imm, Vector<Value> args)   \
-  F(TableDrop, const TableDropImmediate<validate>& imm)                       \
+  F(ElemDrop, const ElemDropImmediate<validate>& imm)                         \
   F(TableCopy, const TableCopyImmediate<validate>& imm, Vector<Value> args)
 
 // Generic Wasm bytecode decoder with utilities for decoding immediates,
@@ -1087,7 +1087,7 @@ class WasmDecoder : public Decoder {
     return true;
   }
 
-  inline bool Validate(MemoryDropImmediate<validate>& imm) {
+  inline bool Validate(DataDropImmediate<validate>& imm) {
     if (!VALIDATE(module_ != nullptr &&
                   imm.index < module_->num_declared_data_segments)) {
       errorf(pc_ + 2, "invalid data segment index: %u", imm.index);
@@ -1122,7 +1122,7 @@ class WasmDecoder : public Decoder {
     return true;
   }
 
-  inline bool Validate(TableDropImmediate<validate>& imm) {
+  inline bool Validate(ElemDropImmediate<validate>& imm) {
     if (!VALIDATE(module_ != nullptr &&
                   imm.index < module_->elem_segments.size())) {
       errorf(pc_ + 2, "invalid element segment index: %u", imm.index);
@@ -1239,8 +1239,8 @@ class WasmDecoder : public Decoder {
             MemoryInitImmediate<validate> imm(decoder, pc);
             return 2 + imm.length;
           }
-          case kExprMemoryDrop: {
-            MemoryDropImmediate<validate> imm(decoder, pc);
+          case kExprDataDrop: {
+            DataDropImmediate<validate> imm(decoder, pc);
             return 2 + imm.length;
           }
           case kExprMemoryCopy: {
@@ -1255,8 +1255,8 @@ class WasmDecoder : public Decoder {
             TableInitImmediate<validate> imm(decoder, pc);
             return 2 + imm.length;
           }
-          case kExprTableDrop: {
-            TableDropImmediate<validate> imm(decoder, pc);
+          case kExprElemDrop: {
+            ElemDropImmediate<validate> imm(decoder, pc);
             return 2 + imm.length;
           }
           case kExprTableCopy: {
@@ -2513,11 +2513,11 @@ class WasmFullDecoder : public WasmDecoder<validate> {
           CALL_INTERFACE_IF_REACHABLE(MemoryInit, imm, dst, src, size);
           break;
         }
-        case kExprMemoryDrop: {
-          MemoryDropImmediate<validate> imm(this, this->pc_);
+        case kExprDataDrop: {
+          DataDropImmediate<validate> imm(this, this->pc_);
           if (!this->Validate(imm)) break;
           len += imm.length;
-          CALL_INTERFACE_IF_REACHABLE(MemoryDrop, imm);
+          CALL_INTERFACE_IF_REACHABLE(DataDrop, imm);
           break;
         }
         case kExprMemoryCopy: {
@@ -2548,11 +2548,11 @@ class WasmFullDecoder : public WasmDecoder<validate> {
           CALL_INTERFACE_IF_REACHABLE(TableInit, imm, VectorOf(args_));
           break;
         }
-        case kExprTableDrop: {
-          TableDropImmediate<validate> imm(this, this->pc_);
+        case kExprElemDrop: {
+          ElemDropImmediate<validate> imm(this, this->pc_);
           if (!this->Validate(imm)) break;
           len += imm.length;
-          CALL_INTERFACE_IF_REACHABLE(TableDrop, imm);
+          CALL_INTERFACE_IF_REACHABLE(ElemDrop, imm);
           break;
         }
         case kExprTableCopy: {

src/wasm/graph-builder-interface.cc

@@ -510,9 +510,8 @@ class WasmGraphBuildingInterface {
     BUILD(MemoryInit, imm.data_segment_index, dst.node, src.node, size.node,
           decoder->position());
   }
-  void MemoryDrop(FullDecoder* decoder,
-                  const MemoryDropImmediate<validate>& imm) {
-    BUILD(MemoryDrop, imm.index, decoder->position());
+  void DataDrop(FullDecoder* decoder, const DataDropImmediate<validate>& imm) {
+    BUILD(DataDrop, imm.index, decoder->position());
   }
   void MemoryCopy(FullDecoder* decoder,
                   const MemoryCopyImmediate<validate>& imm, const Value& dst,
@@ -529,9 +528,8 @@ class WasmGraphBuildingInterface {
     BUILD(TableInit, imm.table.index, imm.elem_segment_index, args[0].node,
           args[1].node, args[2].node, decoder->position());
   }
-  void TableDrop(FullDecoder* decoder,
-                 const TableDropImmediate<validate>& imm) {
-    BUILD(TableDrop, imm.index, decoder->position());
+  void ElemDrop(FullDecoder* decoder, const ElemDropImmediate<validate>& imm) {
+    BUILD(ElemDrop, imm.index, decoder->position());
   }
   void TableCopy(FullDecoder* decoder, const TableCopyImmediate<validate>& imm,
                  Vector<Value> args) {

src/wasm/wasm-opcodes.cc

@@ -198,11 +198,11 @@ const char* WasmOpcodes::OpcodeName(WasmOpcode opcode) {
     CASE_CONVERT_SAT_OP(Convert, I64, F32, "f32", "trunc")
     CASE_CONVERT_SAT_OP(Convert, I64, F64, "f64", "trunc")
     CASE_OP(MemoryInit, "memory.init")
-    CASE_OP(MemoryDrop, "memory.drop")
+    CASE_OP(DataDrop, "data.drop")
     CASE_OP(MemoryCopy, "memory.copy")
     CASE_OP(MemoryFill, "memory.fill")
     CASE_OP(TableInit, "table.init")
-    CASE_OP(TableDrop, "table.drop")
+    CASE_OP(ElemDrop, "elem.drop")
     CASE_OP(TableCopy, "table.copy")
 
     // SIMD opcodes.

src/wasm/wasm-opcodes.h

@@ -410,11 +410,11 @@ bool IsJSCompatibleSignature(const FunctionSig* sig, bool hasBigIntFeature);
   V(I64SConvertSatF64, 0xfc06, l_d) \
   V(I64UConvertSatF64, 0xfc07, l_d) \
   V(MemoryInit, 0xfc08, v_iii)      \
-  V(MemoryDrop, 0xfc09, v_v)        \
+  V(DataDrop, 0xfc09, v_v)          \
   V(MemoryCopy, 0xfc0a, v_iii)      \
   V(MemoryFill, 0xfc0b, v_iii)      \
   V(TableInit, 0xfc0c, v_iii)       \
-  V(TableDrop, 0xfc0d, v_v)         \
+  V(ElemDrop, 0xfc0d, v_v)          \
   V(TableCopy, 0xfc0e, v_iii)
 
 #define FOREACH_ATOMIC_OPCODE(V)                \

test/common/wasm/wasm-macro-gen.h

@@ -592,14 +592,14 @@ inline WasmOpcode LoadStoreOpcodeOf(MachineType type, bool store) {
 
 #define WASM_MEMORY_INIT(seg, dst, src, size) \
   dst, src, size, WASM_NUMERIC_OP(kExprMemoryInit), U32V_1(seg), MEMORY_ZERO
-#define WASM_MEMORY_DROP(seg) WASM_NUMERIC_OP(kExprMemoryDrop), U32V_1(seg)
+#define WASM_DATA_DROP(seg) WASM_NUMERIC_OP(kExprDataDrop), U32V_1(seg)
 #define WASM_MEMORY_COPY(dst, src, size) \
   dst, src, size, WASM_NUMERIC_OP(kExprMemoryCopy), MEMORY_ZERO, MEMORY_ZERO
 #define WASM_MEMORY_FILL(dst, val, size) \
   dst, val, size, WASM_NUMERIC_OP(kExprMemoryFill), MEMORY_ZERO
 #define WASM_TABLE_INIT(seg, dst, src, size) \
   dst, src, size, WASM_NUMERIC_OP(kExprTableInit), U32V_1(seg), TABLE_ZERO
-#define WASM_TABLE_DROP(seg) WASM_NUMERIC_OP(kExprTableDrop), U32V_1(seg)
+#define WASM_ELEM_DROP(seg) WASM_NUMERIC_OP(kExprElemDrop), U32V_1(seg)
 #define WASM_TABLE_COPY(dst, src, size) \
   dst, src, size, WASM_NUMERIC_OP(kExprTableCopy), TABLE_ZERO, TABLE_ZERO
 

test/mjsunit/wasm/bulk-memory.js

@@ -143,7 +143,7 @@ function getMemoryInit(mem, segment_data) {
       .exportAs('init');
   builder.addFunction('drop', kSig_v_v)
       .addBody([
-        kNumericPrefix, kExprMemoryDrop,
+        kNumericPrefix, kExprDataDrop,
         0,  // Data segment index.
       ])
       .exportAs('drop');
@@ -162,14 +162,14 @@ function getMemoryInit(mem, segment_data) {
   assertTraps(kTrapDataSegmentDropped, () => instance.exports.drop());
 })();
 
-(function TestMemoryDropOnActiveSegment() {
+(function TestDataDropOnActiveSegment() {
   const builder = new WasmModuleBuilder();
   builder.addMemory(1);
   builder.addPassiveDataSegment([1, 2, 3]);
   builder.addDataSegment(0, [4, 5, 6]);
   builder.addFunction('drop', kSig_v_v)
       .addBody([
-        kNumericPrefix, kExprMemoryDrop,
+        kNumericPrefix, kExprDataDrop,
         1,  // Data segment index.
       ])
       .exportAs('drop');
@@ -320,13 +320,13 @@ function getMemoryFill(mem) {
       kTrapMemOutOfBounds, () => memoryFill(kPageSize + 1, v, kPageSize));
 })();
 
-(function TestTableDropActive() {
+(function TestElemDropActive() {
   const builder = new WasmModuleBuilder();
   builder.setTableBounds(5, 5);
   builder.addElementSegment(0, false, [0, 0, 0]);
   builder.addFunction('drop', kSig_v_v)
       .addBody([
-        kNumericPrefix, kExprTableDrop,
+        kNumericPrefix, kExprElemDrop,
         0,  // Element segment index.
       ])
       .exportAs('drop');
@@ -335,13 +335,13 @@ function getMemoryFill(mem) {
   assertTraps(kTrapElemSegmentDropped, () => instance.exports.drop());
 })();
 
-(function TestTableDropTwice() {
+(function TestElemDropTwice() {
   const builder = new WasmModuleBuilder();
   builder.setTableBounds(5, 5);
   builder.addPassiveElementSegment([0, 0, 0]);
   builder.addFunction('drop', kSig_v_v)
       .addBody([
-        kNumericPrefix, kExprTableDrop,
+        kNumericPrefix, kExprElemDrop,
         0,  // Element segment index.
       ])
       .exportAs('drop');

test/mjsunit/wasm/wasm-module-builder.js

@@ -376,11 +376,11 @@ let kAtomicPrefix = 0xfe;
 
 // Numeric opcodes.
 let kExprMemoryInit = 0x08;
-let kExprMemoryDrop = 0x09;
+let kExprDataDrop = 0x09;
 let kExprMemoryCopy = 0x0a;
 let kExprMemoryFill = 0x0b;
 let kExprTableInit = 0x0c;
-let kExprTableDrop = 0x0d;
+let kExprElemDrop = 0x0d;
 let kExprTableCopy = 0x0e;
 
 // Atomic opcodes.

test/unittests/wasm/function-body-decoder-unittest.cc

@@ -2769,16 +2769,16 @@ TEST_F(FunctionBodyDecoderTest, MemoryInitInvalid) {
   }
 }
 
-TEST_F(FunctionBodyDecoderTest, MemoryDrop) {
+TEST_F(FunctionBodyDecoderTest, DataDrop) {
   TestModuleBuilder builder;
   builder.InitializeMemory();
   builder.SetDataSegmentCount(1);
   module = builder.module();
 
-  EXPECT_FAILURE(v_v, WASM_MEMORY_DROP(0));
+  EXPECT_FAILURE(v_v, WASM_DATA_DROP(0));
   WASM_FEATURE_SCOPE(bulk_memory);
-  EXPECT_VERIFIES(v_v, WASM_MEMORY_DROP(0));
-  EXPECT_FAILURE(v_v, WASM_MEMORY_DROP(1));
+  EXPECT_VERIFIES(v_v, WASM_DATA_DROP(0));
+  EXPECT_FAILURE(v_v, WASM_DATA_DROP(1));
 }
 
 TEST_F(FunctionBodyDecoderTest, MemoryCopy) {
@@ -2833,16 +2833,16 @@ TEST_F(FunctionBodyDecoderTest, TableInitInvalid) {
   }
 }
 
-TEST_F(FunctionBodyDecoderTest, TableDrop) {
+TEST_F(FunctionBodyDecoderTest, ElemDrop) {
   TestModuleBuilder builder;
   builder.InitializeTable();
   builder.AddPassiveElementSegment();
   module = builder.module();
 
-  EXPECT_FAILURE(v_v, WASM_TABLE_DROP(0));
+  EXPECT_FAILURE(v_v, WASM_ELEM_DROP(0));
   WASM_FEATURE_SCOPE(bulk_memory);
-  EXPECT_VERIFIES(v_v, WASM_TABLE_DROP(0));
-  EXPECT_FAILURE(v_v, WASM_TABLE_DROP(1));
+  EXPECT_VERIFIES(v_v, WASM_ELEM_DROP(0));
+  EXPECT_FAILURE(v_v, WASM_ELEM_DROP(1));
 }
 
 TEST_F(FunctionBodyDecoderTest, TableCopy) {
@@ -2862,7 +2862,7 @@ TEST_F(FunctionBodyDecoderTest, BulkTableOpsWithoutTable) {
 
   WASM_FEATURE_SCOPE(bulk_memory);
   EXPECT_FAILURE(v_v, WASM_TABLE_INIT(0, WASM_ZERO, WASM_ZERO, WASM_ZERO));
-  EXPECT_FAILURE(v_v, WASM_TABLE_DROP(0));
+  EXPECT_FAILURE(v_v, WASM_ELEM_DROP(0));
   EXPECT_FAILURE(v_v, WASM_TABLE_COPY(WASM_ZERO, WASM_ZERO, WASM_ZERO));
 }