[build] Fix a clang warning

src/arm64/simulator-arm64.cc

Index: src/arm64/simulator-arm64.cc
diff --git a/src/arm64/simulator-arm64.cc b/src/arm64/simulator-arm64.cc
index 898072e4bc8a4f0be23019368579bb910f2c1349..ac76692a4e1614f0137aebb534aa829e2193e4db 100644
--- a/src/arm64/simulator-arm64.cc
+++ b/src/arm64/simulator-arm64.cc
@@ -609,7 +609,8 @@ void Simulator::DoRuntimeCall(Instruction* instr) {
                xreg(4), xreg(5), xreg(6), xreg(7));
       ObjectPair result = target(xreg(0), xreg(1), xreg(2), xreg(3),
                                  xreg(4), xreg(5), xreg(6), xreg(7));
-      TraceSim("Returned: {%p, %p}\n", result.x, result.y);
+      TraceSim("Returned: {%p, %p}\n", static_cast<void*>(result.x),
+               static_cast<void*>(result.y));
 #ifdef DEBUG
       CorruptAllCallerSavedCPURegisters();
 #endif
@@ -639,7 +640,8 @@ void Simulator::DoRuntimeCall(Instruction* instr) {
       ObjectTriple* sim_result = reinterpret_cast<ObjectTriple*>(xreg(8));
       ObjectTriple result = target(xreg(0), xreg(1), xreg(2), xreg(3), xreg(4),
                                    xreg(5), xreg(6), xreg(7));
-      TraceSim("Returned: {%p, %p, %p}\n", result.x, result.y, result.z);
+      TraceSim("Returned: {%p, %p, %p}\n", static_cast<void*>(result.x),
+               static_cast<void*>(result.y), static_cast<void*>(result.z));
 #ifdef DEBUG
       CorruptAllCallerSavedCPURegisters();
 #endif