1 files changed, 38 insertions, 10 deletions
diff --git a/deps/v8/src/mips/interface-descriptors-mips.cc b/deps/v8/src/mips/interface-descriptors-mips.cc
index 1ece4812a3..0eda758193 100644
--- a/deps/v8/src/mips/interface-descriptors-mips.cc
+++ b/deps/v8/src/mips/interface-descriptors-mips.cc
@@ -6,6 +6,8 @@
 
 #include "src/interface-descriptors.h"
 
+#include "src/frames.h"
+
 namespace v8 {
 namespace internal {
 
@@ -20,6 +22,33 @@ void CallInterfaceDescriptor::DefaultInitializePlatformSpecific(
                                    default_stub_registers);
 }
 
+// On MIPS it is not allowed to use odd numbered floating point registers
+// (e.g. f1, f3, etc.) for parameters. This can happen if we use
+// DefaultInitializePlatformSpecific to assign float registers for parameters.
+// E.g if fourth parameter goes to float register, f7 would be assigned for
+// parameter (a3 casted to int is 7).
+bool CallInterfaceDescriptor::IsValidFloatParameterRegister(Register reg) {
+  return reg.code() % 2 == 0;
+}
+
+void WasmI32AtomicWaitDescriptor::InitializePlatformSpecific(
+    CallInterfaceDescriptorData* data) {
+  /* Register t4 correspond to f12 FPU register. */
+  const Register default_stub_registers[] = {a0, a1, t4};
+  CHECK_EQ(static_cast<size_t>(kParameterCount),
+           arraysize(default_stub_registers));
+  data->InitializePlatformSpecific(kParameterCount, default_stub_registers);
+}
+
+void WasmI64AtomicWaitDescriptor::InitializePlatformSpecific(
+    CallInterfaceDescriptorData* data) {
+  /* Register t4 correspond to f12 FPU register. */
+  const Register default_stub_registers[] = {a0, a1, a2, t4};
+  CHECK_EQ(static_cast<size_t>(kParameterCount),
+           arraysize(default_stub_registers));
+  data->InitializePlatformSpecific(kParameterCount, default_stub_registers);
+}
+
 void RecordWriteDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   const Register default_stub_registers[] = {a0, a1, a2, a3, kReturnRegister0};
@@ -70,12 +99,6 @@ void TypeofDescriptor::InitializePlatformSpecific(
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }
 
-void CallFunctionDescriptor::InitializePlatformSpecific(
-    CallInterfaceDescriptorData* data) {
-  Register registers[] = {a1};
-  data->InitializePlatformSpecific(arraysize(registers), registers);
-}
-
 void CallTrampolineDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   // a1: target
@@ -208,10 +231,9 @@ void ArgumentsAdaptorDescriptor::InitializePlatformSpecific(
 void ApiCallbackDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   Register registers[] = {
-      JavaScriptFrame::context_register(),  // callee context
-      t0,                                   // call_data
-      a2,                                   // holder
-      a1,                                   // api_function_address
+      JavaScriptFrame::context_register(),  // kTargetContext
+      a1,                                   // kApiFunctionAddress
+      a2,                                   // kArgc
   };
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }
@@ -263,6 +285,12 @@ void FrameDropperTrampolineDescriptor::InitializePlatformSpecific(
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }
 
+void RunMicrotasksEntryDescriptor::InitializePlatformSpecific(
+    CallInterfaceDescriptorData* data) {
+  Register registers[] = {a0, a1};
+  data->InitializePlatformSpecific(arraysize(registers), registers);
+}
+
 }  // namespace internal
 }  // namespace v8