Merge pull request openjdk#24 from zhengxiaolinX/JDK-8286301-loom-riscv-port-22

RISC-V: loom: RVC: Fix two potential alignment issues when RVC's enabled

Author: RealFYang

src/hotspot/cpu/riscv/sharedRuntime_riscv.cpp

@@ -1097,6 +1097,9 @@ static void gen_continuation_enter(MacroAssembler* masm,
 
     __ bnez(c_rarg2, call_thaw);
 
+    // Make sure the call is patchable
+    __ align(4);
+
     address mark = __ pc();
     __ trampoline_call(resolve);
 
@@ -1122,6 +1125,9 @@ static void gen_continuation_enter(MacroAssembler* masm,
 
   __ bnez(c_rarg2, call_thaw);
 
+  // Make sure the call is patchable
+  __ align(4);
+
   address mark = __ pc();
   __ trampoline_call(resolve);