[wasm] Stage multi-value support

R=mstarzinger@chromium.org

Bug: v8:6672
Change-Id: Id8a53f6f74fa05150469c35ceba9470e75363637
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1847156Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64472}

src/wasm/wasm-feature-flags.h

@@ -6,7 +6,6 @@
 #define V8_WASM_WASM_FEATURE_FLAGS_H_
 
 #define FOREACH_WASM_EXPERIMENTAL_FEATURE_FLAG(V) \
-  V(mv, "multi-value support", false)             \
   V(eh, "exception handling opcodes", false)      \
   V(threads, "thread opcodes", false)             \
   V(simd, "SIMD opcodes", false)                  \
@@ -16,6 +15,7 @@
 #define FOREACH_WASM_STAGING_FEATURE_FLAG(V) \
   V(anyref, "anyref opcodes", false)         \
   V(bigint, "JS BigInt support", false)      \
+  V(mv, "multi-value support", false)        \
   V(type_reflection, "wasm type reflection in JS", false)
 
 #define FOREACH_WASM_SHIPPED_FEATURE_FLAG(V)                          \

test/wasm-js/testcfg.py

@@ -31,6 +31,10 @@ proposal_flags = [{
                     'name': 'JS-BigInt-integration',
                     'flags': ['--experimental-wasm-bigint']
                   },
+                  {
+                    'name': 'multi-value',
+                    'flags': ['--experimental-wasm-mv']
+                  },
                   ]
 
 

test/wasm-js/tests.tar.gz.sha1

-2ecf4038f24fc08bd9da504f15942d3abb5ec685
\ No newline at end of file
+b25b394cf889494d03cfabcdc10445babb214b5c
\ No newline at end of file

test/wasm-spec-tests/testcfg.py

@@ -25,6 +25,10 @@ proposal_flags = [{
                     'name': 'JS-BigInt-integration',
                     'flags': ['--experimental-wasm-bigint']
                   },
+                  {
+                    'name': 'multi-value',
+                    'flags': ['--experimental-wasm-mv']
+                  },
                   ]
 
 class TestLoader(testsuite.JSTestLoader):

test/wasm-spec-tests/tests.tar.gz.sha1

-f9bd936c708402051f87f4ac8940d1916112a15a
\ No newline at end of file
+41071e54dbc6341c62aaa365d775137164ecc971
\ No newline at end of file

test/wasm-spec-tests/wasm-spec-tests.status

@@ -20,6 +20,16 @@
   # TODO(v8:9673): Enable these spec tests once they exist, and the out-dated
   # tests have been removed.
   'proposals/JS-BigInt-integration/*': [SKIP],
+  # TODO(v8:9865): Throwing behavior changed for these tests.
+  'proposals/bulk-memory-operations/linking': [FAIL],
+  'proposals/bulk-memory-operations/bulk': [FAIL],
+  'proposals/bulk-memory-operations/elem': [FAIL],
+  'proposals/bulk-memory-operations/data': [FAIL],
+  # TODO(thibaudm): Spec tests do not check multi-return functions correctly.
+  'proposals/multi-value/elem': [FAIL],
+  'proposals/multi-value/call': [FAIL],
+  'proposals/multi-value/if': [FAIL],
+  'proposals/multi-value/func': [FAIL],
 }],  # ALWAYS
 
 ['arch == mipsel or arch == mips64el or arch == mips or arch == mips64', {

tools/wasm/update-wasm-spec-tests.sh

@@ -71,7 +71,7 @@ log_and_run cp -r ${TMP_DIR}/spec/test/js-api/* ${JS_API_TEST_DIR}/tests
 # Generate the proposal tests.
 ###############################################################################
 
-repos='bulk-memory-operations reference-types js-types JS-BigInt-integration'
+repos='bulk-memory-operations reference-types js-types JS-BigInt-integration multi-value'
 
 for repo in ${repos}; do
   echo "Process ${repo}"