Subzero. ARM32. No more SP frobbing.

src/IceTargetLoweringMIPS32.h

Index: src/IceTargetLoweringMIPS32.h
diff --git a/src/IceTargetLoweringMIPS32.h b/src/IceTargetLoweringMIPS32.h
index 5523360eaf9ddcfc0c3dd3a81fbf17b11d473190..387ec2ef29a3ac4ed616ae1c2272d3c00ba0d2bc 100644
--- a/src/IceTargetLoweringMIPS32.h
+++ b/src/IceTargetLoweringMIPS32.h
@@ -235,6 +235,10 @@ protected:
   void lowerSwitch(const InstSwitch *Inst) override;
   void lowerUnreachable(const InstUnreachable *Inst) override;
   void prelowerPhis() override;
+  uint32_t getCallStackArgumentsSizeBytes(const InstCall *Instr) override {
+    (void)Instr;
+    return 0;
+  }
   void genTargetHelperCallFor(Inst *Instr) override { (void)Instr; }
   void doAddressOptLoad() override;
   void doAddressOptStore() override;