[wasm][bulk-memory] Add bulk memory spec tests

These are added as mjsunit tests for now since they haven't been merged
to the spec repo. When that happens, the wasm-spec-tests testsuite can
be updated to include these tests, and the tests in this directory can
be removed.

This CL also adds the test/mjsunit/wasm/bulk-memory-spec directory to a
list of directories that aren't checked for copyright (since these files
are auto-generated).

Bug: v8:7747
Change-Id: I906f2ca45f497a6728f94afb9b3330971e1d3fd5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1600363
Commit-Queue: Ben Smith <binji@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Sergiy Belozorov <sergiyb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61395}

test/mjsunit/wasm/bulk-memory-spec/README

+This directory contains the bulk-memory proposal tests, converted to JS using
+the reference interpreter using the following shell command:
+
+```
+for f in *.wast; do wasm $f -o $f.js; done
+```
+
+Where `wasm` is the reference interpreter compiled from the bulk memory
+proposal (https://github.com/WebAssembly/bulk-memory-operations).
+
+This only includes the tests that are different than the spec repo. The
+testsuite repo (https://github.com/WebAssembly/testsuite) has a tool which
+calculates this, see
+https://github.com/WebAssembly/testsuite/tree/master/proposals/bulk-memory-operations
+
+The contents are copied from the following revisions:
+
+WebAssembly/testsuite: 2a2099d52103215962707fbe9f44cd51fd146636
+WebAssembly/bulk-memory-operations: 47b4ae718b42081a220ac7f405bed1391661a635

test/mjsunit/wasm/bulk-memory-spec/custom.wast

+(module binary
+  "\00asm" "\01\00\00\00"
+  "\00\24\10" "a custom section" "this is the payload"
+  "\00\20\10" "a custom section" "this is payload"
+  "\00\11\10" "a custom section" ""
+  "\00\10\00" "" "this is payload"
+  "\00\01\00" "" ""
+  "\00\24\10" "\00\00custom sectio\00" "this is the payload"
+  "\00\24\10" "\ef\bb\bfa custom sect" "this is the payload"
+  "\00\24\10" "a custom sect\e2\8c\a3" "this is the payload"
+  "\00\1f\16" "module within a module" "\00asm" "\01\00\00\00"
+)
+
+(module binary
+  "\00asm" "\01\00\00\00"
+  "\00\0e\06" "custom" "payload"
+  "\00\0e\06" "custom" "payload"
+  "\01\01\00"  ;; type section
+  "\00\0e\06" "custom" "payload"
+  "\00\0e\06" "custom" "payload"
+  "\02\01\00"  ;; import section
+  "\00\0e\06" "custom" "payload"
+  "\00\0e\06" "custom" "payload"
+  "\03\01\00"  ;; function section
+  "\00\0e\06" "custom" "payload"
+  "\00\0e\06" "custom" "payload"
+  "\04\01\00"  ;; table section
+  "\00\0e\06" "custom" "payload"
+  "\00\0e\06" "custom" "payload"
+  "\05\01\00"  ;; memory section
+  "\00\0e\06" "custom" "payload"
+  "\00\0e\06" "custom" "payload"
+  "\06\01\00"  ;; global section
+  "\00\0e\06" "custom" "payload"
+  "\00\0e\06" "custom" "payload"
+  "\07\01\00"  ;; export section
+  "\00\0e\06" "custom" "payload"
+  "\00\0e\06" "custom" "payload"
+  "\09\01\00"  ;; element section
+  "\00\0e\06" "custom" "payload"
+  "\00\0e\06" "custom" "payload"
+  "\0a\01\00"  ;; code section
+  "\00\0e\06" "custom" "payload"
+  "\00\0e\06" "custom" "payload"
+  "\0b\01\00"  ;; data section
+  "\00\0e\06" "custom" "payload"
+  "\00\0e\06" "custom" "payload"
+)
+
+(module binary
+  "\00asm" "\01\00\00\00"
+  "\01\07\01\60\02\7f\7f\01\7f"                ;; type section
+  "\00\1a\06" "custom" "this is the payload"   ;; custom section
+  "\03\02\01\00"                               ;; function section
+  "\07\0a\01\06\61\64\64\54\77\6f\00\00"       ;; export section
+  "\0a\09\01\07\00\20\00\20\01\6a\0b"          ;; code section
+  "\00\1b\07" "custom2" "this is the payload"  ;; custom section
+)
+
+(assert_malformed
+  (module binary
+    "\00asm" "\01\00\00\00"
+    "\00"
+  )
+  "unexpected end"
+)
+
+(assert_malformed
+  (module binary
+    "\00asm" "\01\00\00\00"
+    "\00\00"
+  )
+  "unexpected end"
+)
+
+(assert_malformed
+  (module binary
+    "\00asm" "\01\00\00\00"
+    "\00\00\00\05\01\00\07\00\00"
+  )
+  "unexpected end"
+)
+
+(assert_malformed
+  (module binary
+    "\00asm" "\01\00\00\00"
+    "\00\26\10" "a custom section" "this is the payload"
+  )
+  "unexpected end"
+)
+
+(assert_malformed
+  (module binary
+    "\00asm" "\01\00\00\00"
+    "\00\25\10" "a custom section" "this is the payload"
+    "\00\24\10" "a custom section" "this is the payload"
+  )
+  "invalid section id"
+)
+
+(assert_malformed
+  (module binary
+    "\00asm" "\01\00\00\00"
+    "\01\07\01\60\02\7f\7f\01\7f"                         ;; type section
+    "\00\25\10" "a custom section" "this is the payload"  ;; invalid length!
+    "\03\02\01\00"                                        ;; function section
+    "\0a\09\01\07\00\20\00\20\01\6a\0b"                   ;; code section
+    "\00\1b\07" "custom2" "this is the payload"           ;; custom section
+  )
+  "function and code section have inconsistent lengths"
+)
+
+;; Test concatenated modules.
+(assert_malformed
+  (module binary
+    "\00asm\01\00\00\00"
+    "\00asm\01\00\00\00"
+  )
+  "length out of bounds"
+)
+
+(assert_malformed
+  (module binary
+    "\00asm" "\01\00\00\00"
+    "\05\03\01\00\01"                         ;; memory section
+    "\0c\01\02"                               ;; data count section (2 segments)
+    "\0b\06\01\00\41\00\0b\00"                ;; data section (1 segment)
+  )
+  "data count and data section have inconsistent lengths"
+)

test/mjsunit/wasm/bulk-memory-spec/custom.wast.js

+
+'use strict';
+
+let spectest = {
+  print: console.log.bind(console),
+  print_i32: console.log.bind(console),
+  print_i32_f32: console.log.bind(console),
+  print_f64_f64: console.log.bind(console),
+  print_f32: console.log.bind(console),
+  print_f64: console.log.bind(console),
+  global_i32: 666,
+  global_f32: 666,
+  global_f64: 666,
+  table: new WebAssembly.Table({initial: 10, maximum: 20, element: 'anyfunc'}),
+  memory: new WebAssembly.Memory({initial: 1, maximum: 2})
+};
+let handler = {
+  get(target, prop) {
+    return (prop in target) ?  target[prop] : {};
+  }
+};
+let registry = new Proxy({spectest}, handler);
+
+function register(name, instance) {
+  registry[name] = instance.exports;
+}
+
+function module(bytes, valid = true) {
+  let buffer = new ArrayBuffer(bytes.length);
+  let view = new Uint8Array(buffer);
+  for (let i = 0; i < bytes.length; ++i) {
+    view[i] = bytes.charCodeAt(i);
+  }
+  let validated;
+  try {
+    validated = WebAssembly.validate(buffer);
+  } catch (e) {
+    throw new Error("Wasm validate throws");
+  }
+  if (validated !== valid) {
+    throw new Error("Wasm validate failure" + (valid ? "" : " expected"));
+  }
+  return new WebAssembly.Module(buffer);
+}
+
+function instance(bytes, imports = registry) {
+  return new WebAssembly.Instance(module(bytes), imports);
+}
+
+function call(instance, name, args) {
+  return instance.exports[name](...args);
+}
+
+function get(instance, name) {
+  let v = instance.exports[name];
+  return (v instanceof WebAssembly.Global) ? v.value : v;
+}
+
+function exports(name, instance) {
+  return {[name]: instance.exports};
+}
+
+function run(action) {
+  action();
+}
+
+function assert_malformed(bytes) {
+  try { module(bytes, false) } catch (e) {
+    if (e instanceof WebAssembly.CompileError) return;
+  }
+  throw new Error("Wasm decoding failure expected");
+}
+
+function assert_invalid(bytes) {
+  try { module(bytes, false) } catch (e) {
+    if (e instanceof WebAssembly.CompileError) return;
+  }
+  throw new Error("Wasm validation failure expected");
+}
+
+function assert_unlinkable(bytes) {
+  let mod = module(bytes);
+  try { new WebAssembly.Instance(mod, registry) } catch (e) {
+    if (e instanceof WebAssembly.LinkError) return;
+  }
+  throw new Error("Wasm linking failure expected");
+}
+
+function assert_uninstantiable(bytes) {
+  let mod = module(bytes);
+  try { new WebAssembly.Instance(mod, registry) } catch (e) {
+    if (e instanceof WebAssembly.RuntimeError) return;
+  }
+  throw new Error("Wasm trap expected");
+}
+
+function assert_trap(action) {
+  try { action() } catch (e) {
+    if (e instanceof WebAssembly.RuntimeError) return;
+  }
+  throw new Error("Wasm trap expected");
+}
+
+let StackOverflow;
+try { (function f() { 1 + f() })() } catch (e) { StackOverflow = e.constructor }
+
+function assert_exhaustion(action) {
+  try { action() } catch (e) {
+    if (e instanceof StackOverflow) return;
+  }
+  throw new Error("Wasm resource exhaustion expected");
+}
+
+function assert_return(action, expected) {
+  let actual = action();
+  if (!Object.is(actual, expected)) {
+    throw new Error("Wasm return value " + expected + " expected, got " + actual);
+  };
+}
+
+function assert_return_canonical_nan(action) {
+  let actual = action();
+  // Note that JS can't reliably distinguish different NaN values,
+  // so there's no good way to test that it's a canonical NaN.
+  if (!Number.isNaN(actual)) {
+    throw new Error("Wasm return value NaN expected, got " + actual);
+  };
+}
+
+function assert_return_arithmetic_nan(action) {
+  // Note that JS can't reliably distinguish different NaN values,
+  // so there's no good way to test for specific bitpatterns here.
+  let actual = action();
+  if (!Number.isNaN(actual)) {
+    throw new Error("Wasm return value NaN expected, got " + actual);
+  };
+}
+
+// custom.wast:1
+let $1 = instance("\x00\x61\x73\x6d\x01\x00\x00\x00\x00\x24\x10\x61\x20\x63\x75\x73\x74\x6f\x6d\x20\x73\x65\x63\x74\x69\x6f\x6e\x74\x68\x69\x73\x20\x69\x73\x20\x74\x68\x65\x20\x70\x61\x79\x6c\x6f\x61\x64\x00\x20\x10\x61\x20\x63\x75\x73\x74\x6f\x6d\x20\x73\x65\x63\x74\x69\x6f\x6e\x74\x68\x69\x73\x20\x69\x73\x20\x70\x61\x79\x6c\x6f\x61\x64\x00\x11\x10\x61\x20\x63\x75\x73\x74\x6f\x6d\x20\x73\x65\x63\x74\x69\x6f\x6e\x00\x10\x00\x74\x68\x69\x73\x20\x69\x73\x20\x70\x61\x79\x6c\x6f\x61\x64\x00\x01\x00\x00\x24\x10\x00\x00\x63\x75\x73\x74\x6f\x6d\x20\x73\x65\x63\x74\x69\x6f\x00\x74\x68\x69\x73\x20\x69\x73\x20\x74\x68\x65\x20\x70\x61\x79\x6c\x6f\x61\x64\x00\x24\x10\xef\xbb\xbf\x61\x20\x63\x75\x73\x74\x6f\x6d\x20\x73\x65\x63\x74\x74\x68\x69\x73\x20\x69\x73\x20\x74\x68\x65\x20\x70\x61\x79\x6c\x6f\x61\x64\x00\x24\x10\x61\x20\x63\x75\x73\x74\x6f\x6d\x20\x73\x65\x63\x74\xe2\x8c\xa3\x74\x68\x69\x73\x20\x69\x73\x20\x74\x68\x65\x20\x70\x61\x79\x6c\x6f\x61\x64\x00\x1f\x16\x6d\x6f\x64\x75\x6c\x65\x20\x77\x69\x74\x68\x69\x6e\x20\x61\x20\x6d\x6f\x64\x75\x6c\x65\x00\x61\x73\x6d\x01\x00\x00\x00");
+
+// custom.wast:14
+let $2 = instance("\x00\x61\x73\x6d\x01\x00\x00\x00\x00\x0e\x06\x63\x75\x73\x74\x6f\x6d\x70\x61\x79\x6c\x6f\x61\x64\x00\x0e\x06\x63\x75\x73\x74\x6f\x6d\x70\x61\x79\x6c\x6f\x61\x64\x01\x01\x00\x00\x0e\x06\x63\x75\x73\x74\x6f\x6d\x70\x61\x79\x6c\x6f\x61\x64\x00\x0e\x06\x63\x75\x73\x74\x6f\x6d\x70\x61\x79\x6c\x6f\x61\x64\x02\x01\x00\x00\x0e\x06\x63\x75\x73\x74\x6f\x6d\x70\x61\x79\x6c\x6f\x61\x64\x00\x0e\x06\x63\x75\x73\x74\x6f\x6d\x70\x61\x79\x6c\x6f\x61\x64\x03\x01\x00\x00\x0e\x06\x63\x75\x73\x74\x6f\x6d\x70\x61\x79\x6c\x6f\x61\x64\x00\x0e\x06\x63\x75\x73\x74\x6f\x6d\x70\x61\x79\x6c\x6f\x61\x64\x04\x01\x00\x00\x0e\x06\x63\x75\x73\x74\x6f\x6d\x70\x61\x79\x6c\x6f\x61\x64\x00\x0e\x06\x63\x75\x73\x74\x6f\x6d\x70\x61\x79\x6c\x6f\x61\x64\x05\x01\x00\x00\x0e\x06\x63\x75\x73\x74\x6f\x6d\x70\x61\x79\x6c\x6f\x61\x64\x00\x0e\x06\x63\x75\x73\x74\x6f\x6d\x70\x61\x79\x6c\x6f\x61\x64\x06\x01\x00\x00\x0e\x06\x63\x75\x73\x74\x6f\x6d\x70\x61\x79\x6c\x6f\x61\x64\x00\x0e\x06\x63\x75\x73\x74\x6f\x6d\x70\x61\x79\x6c\x6f\x61\x64\x07\x01\x00\x00\x0e\x06\x63\x75\x73\x74\x6f\x6d\x70\x61\x79\x6c\x6f\x61\x64\x00\x0e\x06\x63\x75\x73\x74\x6f\x6d\x70\x61\x79\x6c\x6f\x61\x64\x09\x01\x00\x00\x0e\x06\x63\x75\x73\x74\x6f\x6d\x70\x61\x79\x6c\x6f\x61\x64\x00\x0e\x06\x63\x75\x73\x74\x6f\x6d\x70\x61\x79\x6c\x6f\x61\x64\x0a\x01\x00\x00\x0e\x06\x63\x75\x73\x74\x6f\x6d\x70\x61\x79\x6c\x6f\x61\x64\x00\x0e\x06\x63\x75\x73\x74\x6f\x6d\x70\x61\x79\x6c\x6f\x61\x64\x0b\x01\x00\x00\x0e\x06\x63\x75\x73\x74\x6f\x6d\x70\x61\x79\x6c\x6f\x61\x64\x00\x0e\x06\x63\x75\x73\x74\x6f\x6d\x70\x61\x79\x6c\x6f\x61\x64");
+
+// custom.wast:50
+let $3 = instance("\x00\x61\x73\x6d\x01\x00\x00\x00\x01\x07\x01\x60\x02\x7f\x7f\x01\x7f\x00\x1a\x06\x63\x75\x73\x74\x6f\x6d\x74\x68\x69\x73\x20\x69\x73\x20\x74\x68\x65\x20\x70\x61\x79\x6c\x6f\x61\x64\x03\x02\x01\x00\x07\x0a\x01\x06\x61\x64\x64\x54\x77\x6f\x00\x00\x0a\x09\x01\x07\x00\x20\x00\x20\x01\x6a\x0b\x00\x1b\x07\x63\x75\x73\x74\x6f\x6d\x32\x74\x68\x69\x73\x20\x69\x73\x20\x74\x68\x65\x20\x70\x61\x79\x6c\x6f\x61\x64");
+
+// custom.wast:60
+assert_malformed("\x00\x61\x73\x6d\x01\x00\x00\x00\x00");
+
+// custom.wast:68
+assert_malformed("\x00\x61\x73\x6d\x01\x00\x00\x00\x00\x00");
+
+// custom.wast:76
+assert_malformed("\x00\x61\x73\x6d\x01\x00\x00\x00\x00\x00\x00\x05\x01\x00\x07\x00\x00");
+
+// custom.wast:84
+assert_malformed("\x00\x61\x73\x6d\x01\x00\x00\x00\x00\x26\x10\x61\x20\x63\x75\x73\x74\x6f\x6d\x20\x73\x65\x63\x74\x69\x6f\x6e\x74\x68\x69\x73\x20\x69\x73\x20\x74\x68\x65\x20\x70\x61\x79\x6c\x6f\x61\x64");
+
+// custom.wast:92
+assert_malformed("\x00\x61\x73\x6d\x01\x00\x00\x00\x00\x25\x10\x61\x20\x63\x75\x73\x74\x6f\x6d\x20\x73\x65\x63\x74\x69\x6f\x6e\x74\x68\x69\x73\x20\x69\x73\x20\x74\x68\x65\x20\x70\x61\x79\x6c\x6f\x61\x64\x00\x24\x10\x61\x20\x63\x75\x73\x74\x6f\x6d\x20\x73\x65\x63\x74\x69\x6f\x6e\x74\x68\x69\x73\x20\x69\x73\x20\x74\x68\x65\x20\x70\x61\x79\x6c\x6f\x61\x64");
+
+// custom.wast:101
+assert_malformed("\x00\x61\x73\x6d\x01\x00\x00\x00\x01\x07\x01\x60\x02\x7f\x7f\x01\x7f\x00\x25\x10\x61\x20\x63\x75\x73\x74\x6f\x6d\x20\x73\x65\x63\x74\x69\x6f\x6e\x74\x68\x69\x73\x20\x69\x73\x20\x74\x68\x65\x20\x70\x61\x79\x6c\x6f\x61\x64\x03\x02\x01\x00\x0a\x09\x01\x07\x00\x20\x00\x20\x01\x6a\x0b\x00\x1b\x07\x63\x75\x73\x74\x6f\x6d\x32\x74\x68\x69\x73\x20\x69\x73\x20\x74\x68\x65\x20\x70\x61\x79\x6c\x6f\x61\x64");
+
+// custom.wast:114
+assert_malformed("\x00\x61\x73\x6d\x01\x00\x00\x00\x00\x61\x73\x6d\x01\x00\x00\x00");
+
+// custom.wast:122
+assert_malformed("\x00\x61\x73\x6d\x01\x00\x00\x00\x05\x03\x01\x00\x01\x0c\x01\x02\x0b\x06\x01\x00\x41\x00\x0b\x00");

tools/v8_presubmit.py

@@ -476,7 +476,10 @@ class SourceProcessor(SourceFileProcessor):
                        'zlib.js']
   IGNORE_TABS = IGNORE_COPYRIGHTS + ['unicode-test.js', 'html-comments.js']
 
-  IGNORE_COPYRIGHTS_DIRECTORY = "test/test262/local-tests"
+  IGNORE_COPYRIGHTS_DIRECTORIES = [
+      "test/test262/local-tests",
+      "test/mjsunit/wasm/bulk-memory-spec",
+  ]
 
   def EndOfDeclaration(self, line):
     return line == "}" or line == "};"
@@ -494,7 +497,8 @@ class SourceProcessor(SourceFileProcessor):
         print("%s contains tabs" % name)
         result = False
     if not base in SourceProcessor.IGNORE_COPYRIGHTS and \
-        not SourceProcessor.IGNORE_COPYRIGHTS_DIRECTORY in name:
+        not any(ignore_dir in name for ignore_dir
+                in SourceProcessor.IGNORE_COPYRIGHTS_DIRECTORIES):
       if not COPYRIGHT_HEADER_PATTERN.search(contents):
         print("%s is missing a correct copyright header." % name)
         result = False