[string] Widen StringIndexOf fast path

src/assembler.cc

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // All Rights Reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 // - Redistributions of source code must retain the above copyright notice,
 // this list of conditions and the following disclaimer.
 //
@@ skipping 45 matching lines @@
 #include "src/ic/stub-cache.h"
 #include "src/interpreter/interpreter.h"
 #include "src/ostreams.h"
 #include "src/regexp/jsregexp.h"
 #include "src/regexp/regexp-macro-assembler.h"
 #include "src/regexp/regexp-stack.h"
 #include "src/register-configuration.h"
 #include "src/runtime/runtime.h"
 #include "src/simulator.h"  // For flushing instruction cache.
 #include "src/snapshot/serializer-common.h"
+#include "src/string-search.h"
 #include "src/wasm/wasm-external-refs.h"
 
 // Include native regexp-macro-assembler.
 #ifndef V8_INTERPRETED_REGEXP
 #if V8_TARGET_ARCH_IA32
 #include "src/regexp/ia32/regexp-macro-assembler-ia32.h"  // NOLINT
 #elif V8_TARGET_ARCH_X64
 #include "src/regexp/x64/regexp-macro-assembler-x64.h"  // NOLINT
 #elif V8_TARGET_ARCH_ARM64
 #include "src/regexp/arm64/regexp-macro-assembler-arm64.h"  // NOLINT
@@ skipping 1479 matching lines @@
 
 void* libc_memset(void* dest, int byte, size_t n) {
   DCHECK_EQ(static_cast<char>(byte), byte);
   return memset(dest, byte, n);
 }
 
 ExternalReference ExternalReference::libc_memset_function(Isolate* isolate) {
   return ExternalReference(Redirect(isolate, FUNCTION_ADDR(libc_memset)));
 }
 
+template <typename SubjectChar, typename PatternChar>
+ExternalReference ExternalReference::search_string_raw(Isolate* isolate) {
+  auto f = SearchStringRaw<SubjectChar, PatternChar>;
+  return ExternalReference(Redirect(isolate, FUNCTION_ADDR(f)));
+}
+
 ExternalReference ExternalReference::try_internalize_string_function(
     Isolate* isolate) {
   return ExternalReference(Redirect(
       isolate, FUNCTION_ADDR(StringTable::LookupStringIfExists_NoAllocate)));
 }
 
+// Explicit instantiations for all combinations of 1- and 2-byte strings.
+template ExternalReference
+ExternalReference::search_string_raw<const uint8_t, const uint8_t>(Isolate*);
+template ExternalReference
+ExternalReference::search_string_raw<const uint8_t, const uc16>(Isolate*);
+template ExternalReference
+ExternalReference::search_string_raw<const uc16, const uint8_t>(Isolate*);
+template ExternalReference
+ExternalReference::search_string_raw<const uc16, const uc16>(Isolate*);
+
 ExternalReference ExternalReference::page_flags(Page* page) {
   return ExternalReference(reinterpret_cast<Address>(page) +
                            MemoryChunk::kFlagsOffset);
 }
 
 
 ExternalReference ExternalReference::ForDeoptEntry(Address entry) {
   return ExternalReference(entry);
 }
 
@@ skipping 367 matching lines @@
 
 
 void Assembler::DataAlign(int m) {
   DCHECK(m >= 2 && base::bits::IsPowerOfTwo32(m));
   while ((pc_offset() & (m - 1)) != 0) {
     db(0);
   }
 }
 }  // namespace internal
 }  // namespace v8