diff --git a/js/src/jit/VMFunctions.cpp b/js/src/jit/VMFunctions.cpp
index 1229a45bb256..c8cacf8a67f9 100644
--- a/js/src/jit/VMFunctions.cpp
+++ b/js/src/jit/VMFunctions.cpp
@@ -1441,14 +1441,14 @@ ObjectIsConstructor(JSObject* obj)
 }
 
 void
-MarkValueFromIon(JSRuntime* rt, Value* vp)
+MarkValueFromJit(JSRuntime* rt, Value* vp)
 {
     AutoUnsafeCallWithABI unsafe;
     TraceManuallyBarrieredEdge(&rt->gc.marker, vp, "write barrier");
 }
 
 void
-MarkStringFromIon(JSRuntime* rt, JSString** stringp)
+MarkStringFromJit(JSRuntime* rt, JSString** stringp)
 {
     AutoUnsafeCallWithABI unsafe;
     MOZ_ASSERT(*stringp);
@@ -1456,7 +1456,7 @@ MarkStringFromIon(JSRuntime* rt, JSString** stringp)
 }
 
 void
-MarkObjectFromIon(JSRuntime* rt, JSObject** objp)
+MarkObjectFromJit(JSRuntime* rt, JSObject** objp)
 {
     AutoUnsafeCallWithABI unsafe;
     MOZ_ASSERT(*objp);
@@ -1464,14 +1464,14 @@ MarkObjectFromIon(JSRuntime* rt, JSObject** objp)
 }
 
 void
-MarkShapeFromIon(JSRuntime* rt, Shape** shapep)
+MarkShapeFromJit(JSRuntime* rt, Shape** shapep)
 {
     AutoUnsafeCallWithABI unsafe;
     TraceManuallyBarrieredEdge(&rt->gc.marker, shapep, "write barrier");
 }
 
 void
-MarkObjectGroupFromIon(JSRuntime* rt, ObjectGroup** groupp)
+MarkObjectGroupFromJit(JSRuntime* rt, ObjectGroup** groupp)
 {
     AutoUnsafeCallWithABI unsafe;
     TraceManuallyBarrieredEdge(&rt->gc.marker, groupp, "write barrier");
diff --git a/js/src/jit/VMFunctions.h b/js/src/jit/VMFunctions.h
index 0d73d4ce182e..ae39eaa8f7f3 100644
--- a/js/src/jit/VMFunctions.h
+++ b/js/src/jit/VMFunctions.h
@@ -850,27 +850,27 @@ void AssertValidStringPtr(JSContext* cx, JSString* str);
 void AssertValidSymbolPtr(JSContext* cx, JS::Symbol* sym);
 void AssertValidValue(JSContext* cx, Value* v);
 
-void MarkValueFromIon(JSRuntime* rt, Value* vp);
-void MarkStringFromIon(JSRuntime* rt, JSString** stringp);
-void MarkObjectFromIon(JSRuntime* rt, JSObject** objp);
-void MarkShapeFromIon(JSRuntime* rt, Shape** shapep);
-void MarkObjectGroupFromIon(JSRuntime* rt, ObjectGroup** groupp);
+void MarkValueFromJit(JSRuntime* rt, Value* vp);
+void MarkStringFromJit(JSRuntime* rt, JSString** stringp);
+void MarkObjectFromJit(JSRuntime* rt, JSObject** objp);
+void MarkShapeFromJit(JSRuntime* rt, Shape** shapep);
+void MarkObjectGroupFromJit(JSRuntime* rt, ObjectGroup** groupp);
 
 // Helper for generatePreBarrier.
 inline void*
-IonMarkFunction(MIRType type)
+JitMarkFunction(MIRType type)
 {
     switch (type) {
       case MIRType::Value:
-        return JS_FUNC_TO_DATA_PTR(void*, MarkValueFromIon);
+        return JS_FUNC_TO_DATA_PTR(void*, MarkValueFromJit);
       case MIRType::String:
-        return JS_FUNC_TO_DATA_PTR(void*, MarkStringFromIon);
+        return JS_FUNC_TO_DATA_PTR(void*, MarkStringFromJit);
       case MIRType::Object:
-        return JS_FUNC_TO_DATA_PTR(void*, MarkObjectFromIon);
+        return JS_FUNC_TO_DATA_PTR(void*, MarkObjectFromJit);
       case MIRType::Shape:
-        return JS_FUNC_TO_DATA_PTR(void*, MarkShapeFromIon);
+        return JS_FUNC_TO_DATA_PTR(void*, MarkShapeFromJit);
       case MIRType::ObjectGroup:
-        return JS_FUNC_TO_DATA_PTR(void*, MarkObjectGroupFromIon);
+        return JS_FUNC_TO_DATA_PTR(void*, MarkObjectGroupFromJit);
       default: MOZ_CRASH();
     }
 }
diff --git a/js/src/jit/arm/Trampoline-arm.cpp b/js/src/jit/arm/Trampoline-arm.cpp
index b4b64cf8925e..f4e685a5726c 100644
--- a/js/src/jit/arm/Trampoline-arm.cpp
+++ b/js/src/jit/arm/Trampoline-arm.cpp
@@ -908,7 +908,7 @@ JitRuntime::generatePreBarrier(JSContext* cx, MacroAssembler& masm, MIRType type
     masm.setupUnalignedABICall(r2);
     masm.passABIArg(r0);
     masm.passABIArg(r1);
-    masm.callWithABI(IonMarkFunction(type));
+    masm.callWithABI(JitMarkFunction(type));
     save.take(AnyRegister(lr));
     save.add(pc);
     masm.PopRegsInMask(save);
diff --git a/js/src/jit/arm64/Trampoline-arm64.cpp b/js/src/jit/arm64/Trampoline-arm64.cpp
index caee31bfb923..25a95c7eec46 100644
--- a/js/src/jit/arm64/Trampoline-arm64.cpp
+++ b/js/src/jit/arm64/Trampoline-arm64.cpp
@@ -728,7 +728,7 @@ JitRuntime::generatePreBarrier(JSContext* cx, MacroAssembler& masm, MIRType type
     masm.setupUnalignedABICall(r0);
     masm.passABIArg(r3);
     masm.passABIArg(PreBarrierReg);
-    masm.callWithABI(IonMarkFunction(type));
+    masm.callWithABI(JitMarkFunction(type));
 
     // Pop the volatile regs and restore LR.
     masm.PopRegsInMask(regs);
diff --git a/js/src/jit/mips32/Trampoline-mips32.cpp b/js/src/jit/mips32/Trampoline-mips32.cpp
index 3c1ae32cc21f..bef77f84105d 100644
--- a/js/src/jit/mips32/Trampoline-mips32.cpp
+++ b/js/src/jit/mips32/Trampoline-mips32.cpp
@@ -884,7 +884,7 @@ JitRuntime::generatePreBarrier(JSContext* cx, MacroAssembler& masm, MIRType type
     masm.setupUnalignedABICall(a2);
     masm.passABIArg(a0);
     masm.passABIArg(a1);
-    masm.callWithABI(IonMarkFunction(type));
+    masm.callWithABI(JitMarkFunction(type));
 
     save.take(AnyRegister(ra));
     masm.PopRegsInMask(save);
diff --git a/js/src/jit/mips64/Trampoline-mips64.cpp b/js/src/jit/mips64/Trampoline-mips64.cpp
index 396bde73f56c..4fc812bcf854 100644
--- a/js/src/jit/mips64/Trampoline-mips64.cpp
+++ b/js/src/jit/mips64/Trampoline-mips64.cpp
@@ -840,7 +840,7 @@ JitRuntime::generatePreBarrier(JSContext* cx, MacroAssembler& masm, MIRType type
     masm.setupUnalignedABICall(a2);
     masm.passABIArg(a0);
     masm.passABIArg(a1);
-    masm.callWithABI(IonMarkFunction(type));
+    masm.callWithABI(JitMarkFunction(type));
 
     save.take(AnyRegister(ra));
     masm.PopRegsInMask(save);
diff --git a/js/src/jit/x64/Trampoline-x64.cpp b/js/src/jit/x64/Trampoline-x64.cpp
index 20e4f6fe7b58..aed4b6c0a7ba 100644
--- a/js/src/jit/x64/Trampoline-x64.cpp
+++ b/js/src/jit/x64/Trampoline-x64.cpp
@@ -789,7 +789,7 @@ JitRuntime::generatePreBarrier(JSContext* cx, MacroAssembler& masm, MIRType type
     masm.setupUnalignedABICall(rax);
     masm.passABIArg(rcx);
     masm.passABIArg(rdx);
-    masm.callWithABI(IonMarkFunction(type));
+    masm.callWithABI(JitMarkFunction(type));
 
     masm.PopRegsInMask(regs);
     masm.ret();
diff --git a/js/src/jit/x86/Trampoline-x86.cpp b/js/src/jit/x86/Trampoline-x86.cpp
index 9ce458950832..d98e08987f54 100644
--- a/js/src/jit/x86/Trampoline-x86.cpp
+++ b/js/src/jit/x86/Trampoline-x86.cpp
@@ -812,7 +812,7 @@ JitRuntime::generatePreBarrier(JSContext* cx, MacroAssembler& masm, MIRType type
     masm.setupUnalignedABICall(eax);
     masm.passABIArg(ecx);
     masm.passABIArg(edx);
-    masm.callWithABI(IonMarkFunction(type));
+    masm.callWithABI(JitMarkFunction(type));
 
     masm.PopRegsInMask(save);
     masm.ret();