[turbofan] enable switch jump tables with --no-untrusted-code-mitigations,

also for stubs and Wasm

Bug: chromium:845851
Change-Id: I9b860dc26f8b35d629235b82fc5fffe04bf10493
Reviewed-on: https://chromium-review.googlesource.com/1076151
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53525}

src/optimized-compilation-info.cc

@@ -62,6 +62,9 @@ OptimizedCompilationInfo::OptimizedCompilationInfo(
 #endif
   SetTracingFlags(
       PassesFilter(debug_name, CStrVector(FLAG_trace_turbo_filter)));
+  if (!FLAG_turbo_disable_switch_jump_table) {
+    SetFlag(kSwitchJumpTableEnabled);
+  }
 }
 
 OptimizedCompilationInfo::OptimizedCompilationInfo(

src/optimized-compilation-info.h

@@ -63,7 +63,7 @@ class V8_EXPORT_PRIVATE OptimizedCompilationInfo final {
   OptimizedCompilationInfo(Zone* zone, Isolate* isolate,
                            Handle<SharedFunctionInfo> shared,
                            Handle<JSFunction> closure);
-  // Construct a compilation info for stub compilation (or testing).
+  // Construct a compilation info for stub compilation, Wasm, and testing.
   OptimizedCompilationInfo(Vector<const char> debug_name, Zone* zone,
                            Code::Kind code_kind);
 

src/wasm/wasm-code-manager.cc

@@ -271,6 +271,7 @@ void WasmCode::Validate() const {
       case RelocInfo::WASM_STUB_CALL:
       case RelocInfo::JS_TO_WASM_CALL:
       case RelocInfo::EXTERNAL_REFERENCE:
+      case RelocInfo::INTERNAL_REFERENCE:
       case RelocInfo::INTERNAL_REFERENCE_ENCODED:
       case RelocInfo::OFF_HEAP_TARGET:
       case RelocInfo::COMMENT: