From 0145bea2eda2837cb9542c93be01dd3df53ef0b9 Mon Sep 17 00:00:00 2001
Date: Fri, 22 Jan 2021 16:16:25 +0800
Subject: 8181503: Can't compile hotspot with c++11

Summary: <compile>: fix c++11 compiler issues
LLT: N/A
Bug url: https://bugs.openjdk.java.net/browse/JDK-8181503
---
 hotspot/src/os_cpu/bsd_x86/vm/os_bsd_x86.cpp | 6 +++---
 hotspot/src/share/vm/code/compiledIC.cpp     | 2 +-
 hotspot/src/share/vm/utilities/vmError.cpp   | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/hotspot/src/os_cpu/bsd_x86/vm/os_bsd_x86.cpp b/hotspot/src/os_cpu/bsd_x86/vm/os_bsd_x86.cpp
index 018feea1e..935a16b50 100644
--- a/hotspot/src/os_cpu/bsd_x86/vm/os_bsd_x86.cpp
+++ b/hotspot/src/os_cpu/bsd_x86/vm/os_bsd_x86.cpp
@@ -281,11 +281,11 @@ PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
 address os::current_stack_pointer() {
 #if defined(__clang__) || defined(__llvm__)
   register void *esp;
-  __asm__("mov %%"SPELL_REG_SP", %0":"=r"(esp));
+  __asm__("mov %%" SPELL_REG_SP ", %0":"=r"(esp));
   return (address) esp;
 #elif defined(SPARC_WORKS)
   register void *esp;
-  __asm__("mov %%"SPELL_REG_SP", %0":"=r"(esp));
+  __asm__("mov %%" SPELL_REG_SP ", %0":"=r"(esp));
   return (address) ((char*)esp + sizeof(long)*2);
 #else
   register void *esp __asm__ (SPELL_REG_SP);
@@ -368,7 +368,7 @@ frame os::get_sender_for_C_frame(frame* fr) {
 intptr_t* _get_previous_fp() {
 #if defined(SPARC_WORKS) || defined(__clang__) || defined(__llvm__)
   register intptr_t **ebp;
-  __asm__("mov %%"SPELL_REG_FP", %0":"=r"(ebp));
+  __asm__("mov %%" SPELL_REG_FP ", %0":"=r"(ebp));
 #else
   register intptr_t **ebp __asm__ (SPELL_REG_FP);
 #endif
diff --git a/hotspot/src/share/vm/code/compiledIC.cpp b/hotspot/src/share/vm/code/compiledIC.cpp
index 63821c061..067942150 100644
--- a/hotspot/src/share/vm/code/compiledIC.cpp
+++ b/hotspot/src/share/vm/code/compiledIC.cpp
@@ -222,7 +222,7 @@ bool CompiledIC::set_to_megamorphic(CallInfo* call_info, Bytecodes::Code bytecod
     assert(bytecode == Bytecodes::_invokeinterface, "");
     int itable_index = call_info->itable_index();
     entry = VtableStubs::find_itable_stub(itable_index);
-    if (entry == false) {
+    if (entry == NULL) {
       return false;
     }
 #ifdef ASSERT
diff --git a/hotspot/src/share/vm/utilities/vmError.cpp b/hotspot/src/share/vm/utilities/vmError.cpp
index e5aad6ff2..23d495d93 100644
--- a/hotspot/src/share/vm/utilities/vmError.cpp
+++ b/hotspot/src/share/vm/utilities/vmError.cpp
@@ -399,7 +399,7 @@ void VMError::report(outputStream* st) {
 
   STEP(15, "(printing type of error)")
 
-     switch(_id) {
+     switch(static_cast<unsigned int>(_id)) {
        case OOM_MALLOC_ERROR:
        case OOM_MMAP_ERROR:
          if (_size) {
-- 
2.19.0