Merged: [wasm] Fix code specialization for empty memory buffer

test/cctest/test-run-wasm-relocation-ia32.cc

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stdlib.h>
 
 #include "src/v8.h"
 
 #include "src/debug/debug.h"
 #include "src/disasm.h"
@@ skipping 43 matching lines @@
   byte* begin = code->instruction_start();
   byte* end = begin + code->instruction_size();
   disasm::Disassembler::Disassemble(stdout, begin, end);
 #endif
 
   int offset = 1234;
 
   // Relocating references by offset
   int mode_mask = (1 << RelocInfo::WASM_MEMORY_REFERENCE);
   for (RelocIterator it(*code, mode_mask); !it.done(); it.next()) {
-    RelocInfo::Mode mode = it.rinfo()->rmode();
-    if (RelocInfo::IsWasmMemoryReference(mode)) {
-      // Dummy values of size used here as the objective of the test is to
-      // verify that the immediate is patched correctly
-      it.rinfo()->update_wasm_memory_reference(
-          it.rinfo()->wasm_memory_reference(),
-          it.rinfo()->wasm_memory_reference() + offset, 1, 2,
-          SKIP_ICACHE_FLUSH);
-    }
+    DCHECK(RelocInfo::IsWasmMemoryReference(it.rinfo()->rmode()));
+    it.rinfo()->update_wasm_memory_reference(
+        it.rinfo()->wasm_memory_reference(),
+        it.rinfo()->wasm_memory_reference() + offset, SKIP_ICACHE_FLUSH);
   }
 
   // Check if immediate is updated correctly
   ret_value = runnable.Call();
   CHECK_EQ(ret_value, imm + offset);
 
 #ifdef OBJECT_PRINT
   code->Print(os);
   begin = code->instruction_start();
   end = begin + code->instruction_size();
@@ skipping 38 matching lines @@
   code->Print(os);
   byte* begin = code->instruction_start();
   byte* end = begin + code->instruction_size();
   disasm::Disassembler::Disassemble(stdout, begin, end);
 #endif
 
   size_t offset = 10;
 
   int mode_mask = (1 << RelocInfo::WASM_MEMORY_SIZE_REFERENCE);
   for (RelocIterator it(*code, mode_mask); !it.done(); it.next()) {
-    RelocInfo::Mode mode = it.rinfo()->rmode();
-    if (RelocInfo::IsWasmMemorySizeReference(mode)) {
-      it.rinfo()->update_wasm_memory_reference(
-          reinterpret_cast<Address>(1234), reinterpret_cast<Address>(1234),
-          it.rinfo()->wasm_memory_size_reference(),
-          it.rinfo()->wasm_memory_size_reference() + offset, SKIP_ICACHE_FLUSH);
-    }
+    DCHECK(RelocInfo::IsWasmMemorySizeReference(it.rinfo()->rmode()));
+    it.rinfo()->update_wasm_memory_size(
+        it.rinfo()->wasm_memory_size_reference(),
+        it.rinfo()->wasm_memory_size_reference() + offset, SKIP_ICACHE_FLUSH);
   }
 
   ret_value = runnable.Call();
   CHECK_NE(ret_value, bit_cast<int32_t>(0xdeadbeef));
 
 #ifdef OBJECT_PRINT
   code->Print(os);
   begin = code->instruction_start();
   end = begin + code->instruction_size();
   disasm::Disassembler::Disassemble(stdout, begin, end);
 #endif
 }
 #undef __