diff --git a/js/src/jit/CodeGenerator.cpp b/js/src/jit/CodeGenerator.cpp
index 56f0c3c4d34..ffae0b8ffef 100644
--- a/js/src/jit/CodeGenerator.cpp
+++ b/js/src/jit/CodeGenerator.cpp
@@ -4827,8 +4827,7 @@ CodeGenerator::visitCharCodeAt(LCharCodeAt *lir)
         return false;
 
     Address lengthAndFlagsAddr(str, JSString::offsetOfLengthAndFlags());
-    masm.loadPtr(lengthAndFlagsAddr, output);
-    masm.branchTest32(Assembler::Zero, output, Imm32(JSString::FLAGS_MASK), ool->entry());
+    masm.branchTest32(Assembler::Zero, lengthAndFlagsAddr, Imm32(JSString::FLAGS_MASK), ool->entry());
 
     // getChars
     Address charsAddr(str, JSString::offsetOfChars());
diff --git a/js/src/jit/IonMacroAssembler.cpp b/js/src/jit/IonMacroAssembler.cpp
index 175ebbbfc48..c802febd4e3 100644
--- a/js/src/jit/IonMacroAssembler.cpp
+++ b/js/src/jit/IonMacroAssembler.cpp
@@ -875,8 +875,7 @@ MacroAssembler::checkInterruptFlagsPar(const Register &tempReg,
                                             Label *fail)
 {
     movePtr(ImmPtr(GetIonContext()->runtime->addressOfInterrupt()), tempReg);
-    load32(Address(tempReg, 0), tempReg);
-    branchTest32(Assembler::NonZero, tempReg, tempReg, fail);
+    branch32(Assembler::NonZero, Address(tempReg, 0), Imm32(0), fail);
 }
 
 static void