Bug 1289054 - Part 3: Implement the 64bit variant of WrapInt64ToInt32 on arm, r=bbouvier

js/src/jit/arm/CodeGenerator-arm.cpp

@@ -3007,3 +3007,12 @@ CodeGeneratorARM::visitCopySignD(LCopySignD* ins)
     masm.as_vxfer(lhsi, InvalidReg, lhs, Assembler::FloatToCore, Assembler::Always, 0);
     masm.ma_vxfer(lhsi, rhsi, output);
 }
+
+void
+CodeGeneratorARM::visitWrapInt64ToInt32(LWrapInt64ToInt32* lir)
+{
+    const LInt64Allocation& input = lir->getInt64Operand(0);
+    Register output = ToRegister(lir->output());
+
+    masm.move32(ToRegister(input.low()), output);
+}

js/src/jit/arm/CodeGenerator-arm.h

@@ -157,6 +157,8 @@ class CodeGeneratorARM : public CodeGeneratorShared
     virtual void visitTruncateDToInt32(LTruncateDToInt32* ins);
     virtual void visitTruncateFToInt32(LTruncateFToInt32* ins);
 
+    virtual void visitWrapInt64ToInt32(LWrapInt64ToInt32* lir);
+
     // Out of line visitors.
     void visitOutOfLineBailout(OutOfLineBailout* ool);
     void visitOutOfLineTableSwitch(OutOfLineTableSwitch* ool);