MIPS: Add new relocation type WASM_MEMORY_SIZE_REFERENCE, use relocatable...

MIPS: Add new relocation type WASM_MEMORY_SIZE_REFERENCE, use relocatable pointers to update wasm memory size references in generated code.

Port 117a56b7

BUG=

Review-Url: https://codereview.chromium.org/1959653002
Cr-Commit-Position: refs/heads/master@{#36081}

src/compiler/mips/code-generator-mips.cc

@@ -1803,7 +1803,8 @@ void CodeGenerator::AssembleMove(InstructionOperand* source,
           destination->IsRegister() ? g.ToRegister(destination) : kScratchReg;
       switch (src.type()) {
         case Constant::kInt32:
-          if (src.rmode() == RelocInfo::WASM_MEMORY_REFERENCE) {
+          if (src.rmode() == RelocInfo::WASM_MEMORY_REFERENCE ||
+              src.rmode() == RelocInfo::WASM_MEMORY_SIZE_REFERENCE) {
             __ li(dst, Operand(src.ToInt32(), src.rmode()));
           } else {
             __ li(dst, Operand(src.ToInt32()));

src/compiler/mips64/code-generator-mips64.cc

@@ -2069,7 +2069,11 @@ void CodeGenerator::AssembleMove(InstructionOperand* source,
           destination->IsRegister() ? g.ToRegister(destination) : kScratchReg;
       switch (src.type()) {
         case Constant::kInt32:
-          __ li(dst, Operand(src.ToInt32()));
+          if (src.rmode() == RelocInfo::WASM_MEMORY_SIZE_REFERENCE) {
+            __ li(dst, Operand(src.ToInt32(), src.rmode()));
+          } else {
+            __ li(dst, Operand(src.ToInt32()));
+          }
           break;
         case Constant::kFloat32:
           __ li(dst, isolate()->factory()->NewNumber(src.ToFloat32(), TENURED));
@@ -2078,6 +2082,7 @@ void CodeGenerator::AssembleMove(InstructionOperand* source,
           if (src.rmode() == RelocInfo::WASM_MEMORY_REFERENCE) {
             __ li(dst, Operand(src.ToInt64(), src.rmode()));
           } else {
+            DCHECK(src.rmode() != RelocInfo::WASM_MEMORY_SIZE_REFERENCE);
             __ li(dst, Operand(src.ToInt64()));
           }
           break;