diff --git a/js/src/jit/CodeGenerator.cpp b/js/src/jit/CodeGenerator.cpp
index 0632c78678e2..9e89eafde032 100644
--- a/js/src/jit/CodeGenerator.cpp
+++ b/js/src/jit/CodeGenerator.cpp
@@ -6997,13 +6997,6 @@ CodeGenerator::generate()
 
     masm.bind(&skipPrologue);
 
-#ifdef JS_TRACE_LOGGING
-    if (!gen->compilingAsmJS()) {
-        emitTracelogScriptStart();
-        emitTracelogStartEvent(TraceLogger_IonMonkey);
-    }
-#endif
-
 #ifdef DEBUG
     // Assert that the argument types are correct.
     generateArgumentsChecks(/* bailout = */ false);
diff --git a/js/src/jit/arm/CodeGenerator-arm.cpp b/js/src/jit/arm/CodeGenerator-arm.cpp
index ec5462e11f90..faa9b3ccb62b 100644
--- a/js/src/jit/arm/CodeGenerator-arm.cpp
+++ b/js/src/jit/arm/CodeGenerator-arm.cpp
@@ -50,6 +50,12 @@ CodeGeneratorARM::generatePrologue()
     // Note that this automatically sets MacroAssembler::framePushed().
     masm.reserveStack(frameSize());
     masm.checkStackAlignment();
+
+#ifdef JS_TRACE_LOGGING
+    emitTracelogScriptStart();
+    emitTracelogStartEvent(TraceLogger_IonMonkey);
+#endif
+
     return true;
 }
 
diff --git a/js/src/jit/mips/CodeGenerator-mips.cpp b/js/src/jit/mips/CodeGenerator-mips.cpp
index 0251df5d7f1a..0513d0a41b2d 100644
--- a/js/src/jit/mips/CodeGenerator-mips.cpp
+++ b/js/src/jit/mips/CodeGenerator-mips.cpp
@@ -48,6 +48,12 @@ CodeGeneratorMIPS::generatePrologue()
     // Note that this automatically sets MacroAssembler::framePushed().
     masm.reserveStack(frameSize());
     masm.checkStackAlignment();
+
+#ifdef JS_TRACE_LOGGING
+    emitTracelogScriptStart();
+    emitTracelogStartEvent(TraceLogger_IonMonkey);
+#endif
+
     return true;
 }
 
@@ -58,10 +64,8 @@ CodeGeneratorMIPS::generateEpilogue()
     masm.bind(&returnLabel_);
 
 #ifdef JS_TRACE_LOGGING
-    if (gen->info().executionMode() == SequentialExecution) {
-        emitTracelogStopEvent(TraceLogger_IonMonkey);
-        emitTracelogScriptStop();
-    }
+    emitTracelogStopEvent(TraceLogger_IonMonkey);
+    emitTracelogScriptStop();
 #endif
 
     masm.freeStack(frameSize());
diff --git a/js/src/jit/shared/CodeGenerator-x86-shared.cpp b/js/src/jit/shared/CodeGenerator-x86-shared.cpp
index 64100099ab8e..848230e0c0ec 100644
--- a/js/src/jit/shared/CodeGenerator-x86-shared.cpp
+++ b/js/src/jit/shared/CodeGenerator-x86-shared.cpp
@@ -46,6 +46,12 @@ CodeGeneratorX86Shared::generatePrologue()
 
     // Note that this automatically sets MacroAssembler::framePushed().
     masm.reserveStack(frameSize());
+
+#ifdef JS_TRACE_LOGGING
+    emitTracelogScriptStart();
+    emitTracelogStartEvent(TraceLogger_IonMonkey);
+#endif
+
     return true;
 }
 
@@ -57,10 +63,8 @@ CodeGeneratorX86Shared::generateEpilogue()
     masm.bind(&returnLabel_);
 
 #ifdef JS_TRACE_LOGGING
-    if (gen->info().executionMode() == SequentialExecution) {
-        emitTracelogStopEvent(TraceLogger_IonMonkey);
-        emitTracelogScriptStop();
-    }
+    emitTracelogStopEvent(TraceLogger_IonMonkey);
+    emitTracelogScriptStop();
 #endif
 
     // Pop the stack we allocated at the start of the function.