8254072: AArch64: Get rid of --disable-warnings-as-errors on Windows+…

…ARM64 build

Co-authored-by: Bernhard Urban-Forster <burban@openjdk.org>
Reviewed-by: burban, aph
Backport-of: d2812f7

make/hotspot/lib/CompileGtest.gmk

@@ -55,6 +55,9 @@ endif
 # Disabling undef, switch, format-nonliteral and tautological-undefined-compare
 # warnings for clang because of test source.
 
+# Disable MSVC warning C4146 "unary minus operator applied to unsigned type,
+# result still unsigned". This operation is well-defined.
+
 # Solaris: Disable inlining (+d) to workaround Assertion:   (../lnk/vardescr.h, line 109)
 $(eval $(call SetupNativeCompilation, BUILD_GTEST_LIBJVM, \
     NAME := jvm, \
@@ -78,6 +81,7 @@ $(eval $(call SetupNativeCompilation, BUILD_GTEST_LIBJVM, \
     DISABLED_WARNINGS_clang := undef switch format-nonliteral \
         tautological-undefined-compare $(BUILD_LIBJVM_DISABLED_WARNINGS_clang), \
     DISABLED_WARNINGS_solstudio := identexpected, \
+    DISABLED_WARNINGS_microsoft := 4146, \
     LDFLAGS := $(JVM_LDFLAGS), \
     LDFLAGS_solaris := -library=stlport4 $(call SET_SHARED_LIBRARY_ORIGIN), \
     LIBS := $(JVM_LIBS), \

make/hotspot/lib/CompileJvm.gmk

@@ -148,6 +148,8 @@ JVM_STRIPFLAGS ?= $(STRIPFLAGS)
 ################################################################################
 # Now set up the actual compilation of the main hotspot native library
 
+# Disable MSVC warning C4146 "unary minus operator applied to unsigned type,
+# result still unsigned". This operation is well-defined.
 $(eval $(call SetupNativeCompilation, BUILD_LIBJVM, \
     NAME := jvm, \
     TOOLCHAIN := TOOLCHAIN_LINK_CXX, \
@@ -164,6 +166,7 @@ $(eval $(call SetupNativeCompilation, BUILD_LIBJVM, \
     DISABLED_WARNINGS_solstudio := $(DISABLED_WARNINGS_solstudio), \
     DISABLED_WARNINGS_xlc := 1540-0216 1540-0198 1540-1090 1540-1639 \
         1540-1088 1500-010, \
+    DISABLED_WARNINGS_microsoft := 4146, \
     ASFLAGS := $(JVM_ASFLAGS), \
     LDFLAGS := $(JVM_LDFLAGS), \
     LIBS := $(JVM_LIBS), \

src/hotspot/cpu/aarch64/aarch64.ad

@@ -2055,11 +2055,6 @@ int HandlerImpl::emit_deopt_handler(CodeBuffer& cbuf)
 
 const bool Matcher::match_rule_supported(int opcode) {
 
-  switch (opcode) {
-  default:
-    break;
-  }
-
   if (!has_match_rule(opcode)) {
     return false;
   }

src/hotspot/cpu/aarch64/assembler_aarch64.hpp

@@ -214,7 +214,7 @@ class Instruction_aarch64 {
 
   static void patch(address a, int msb, int lsb, uint64_t val) {
     int nbits = msb - lsb + 1;
-    guarantee(val < (1U << nbits), "Field too big for insn");
+    guarantee(val < (1ULL << nbits), "Field too big for insn");
     assert_cond(msb >= lsb);
     unsigned mask = checked_cast<unsigned>(right_n_bits(nbits));
     val <<= lsb;
@@ -436,8 +436,8 @@ class Address {
   }
 
   Register base() const {
-    guarantee((_mode == base_plus_offset | _mode == base_plus_offset_reg
-               | _mode == post | _mode == post_reg),
+    guarantee((_mode == base_plus_offset || _mode == base_plus_offset_reg
+               || _mode == post || _mode == post_reg),
               "wrong mode");
     return _base;
   }

src/hotspot/cpu/aarch64/frame_aarch64.cpp

@@ -676,11 +676,12 @@ intptr_t* frame::real_fp() const {
 
 #undef DESCRIBE_FP_OFFSET
 
-#define DESCRIBE_FP_OFFSET(name)                                        \
-  {                                                                     \
-    uintptr_t *p = (uintptr_t *)fp;                                     \
-    printf("0x%016lx 0x%016lx %s\n", (uintptr_t)(p + frame::name##_offset), \
-           p[frame::name##_offset], #name);                             \
+#define DESCRIBE_FP_OFFSET(name)                       \
+  {                                                    \
+    uintptr_t *p = (uintptr_t *)fp;                    \
+    printf(INTPTR_FORMAT " " INTPTR_FORMAT " %s\n",    \
+           (uintptr_t)(p + frame::name##_offset),      \
+           p[frame::name##_offset], #name);            \
   }
 
 static THREAD_LOCAL_DECL uintptr_t nextfp;

src/hotspot/cpu/aarch64/macroAssembler_aarch64.cpp

@@ -1832,7 +1832,7 @@ bool MacroAssembler::try_merge_ldst(Register rt, const Address &adr, size_t size
     return true;
   } else {
     assert(size_in_bytes == 8 || size_in_bytes == 4, "only 8 bytes or 4 bytes load/store is supported.");
-    const unsigned mask = size_in_bytes - 1;
+    const uint64_t mask = size_in_bytes - 1;
     if (adr.getMode() == Address::base_plus_offset &&
         (adr.offset() & mask) == 0) { // only supports base_plus_offset.
       code()->set_last_insn(pc());
@@ -2774,7 +2774,7 @@ void MacroAssembler::merge_ldst(Register rt,
   // Overwrite previous generated binary.
   code_section()->set_end(prev);
 
-  const int sz = prev_ldst->size_in_bytes();
+  const size_t sz = prev_ldst->size_in_bytes();
   assert(sz == 8 || sz == 4, "only supports 64/32bit merging.");
   if (!is_store) {
     BLOCK_COMMENT("merged ldr pair");

src/hotspot/cpu/aarch64/macroAssembler_aarch64.hpp

@@ -89,7 +89,7 @@ class MacroAssembler: public Assembler {
       = (operand_valid_for_logical_immediate(false /*is32*/,
                                              (uint64_t)Universe::narrow_klass_base())
          && ((uint64_t)Universe::narrow_klass_base()
-             > (1UL << log2_intptr((uintptr_t)Universe::narrow_klass_range()))));
+             > (1ULL << log2_intptr(Universe::narrow_klass_range()))));
   }
 
  // These routines should emit JVMTI PopFrame and ForceEarlyReturn handling code.

src/hotspot/cpu/aarch64/nativeInst_aarch64.hpp

@@ -681,7 +681,7 @@ class NativeLdSt : public NativeInstruction {
       return 0;
     }
   }
-  size_t size_in_bytes() { return 1 << size(); }
+  size_t size_in_bytes() { return 1ULL << size(); }
   bool is_not_pre_post_index() { return (is_ldst_ur() || is_ldst_unsigned_offset()); }
   bool is_load() {
     assert(Instruction_aarch64::extract(uint_at(0), 23, 22) == 0b01 ||

src/hotspot/cpu/aarch64/sharedRuntime_aarch64.cpp

@@ -1498,7 +1498,7 @@ nmethod* SharedRuntime::generate_native_wrapper(MacroAssembler* masm,
 
   // Generate stack overflow check
   if (UseStackBanging) {
-    __ bang_stack_with_offset(JavaThread::stack_shadow_zone_size());
+    __ bang_stack_with_offset(checked_cast<int>(JavaThread::stack_shadow_zone_size()));
   } else {
     Unimplemented();
   }
@@ -2446,7 +2446,7 @@ void SharedRuntime::generate_deopt_blob() {
   __ sub(sp, sp, r19);
 
   // Push interpreter frames in a loop
-  __ mov(rscratch1, (address)0xDEADDEAD);        // Make a recognizable pattern
+  __ mov(rscratch1, (uint64_t)0xDEADDEAD);        // Make a recognizable pattern
   __ mov(rscratch2, rscratch1);
   Label loop;
   __ bind(loop);

src/hotspot/cpu/aarch64/stubGenerator_aarch64.cpp

@@ -1299,14 +1299,14 @@ class StubGenerator: public StubCodeGenerator {
 
   // Scan over array at a for count oops, verifying each one.
   // Preserves a and count, clobbers rscratch1 and rscratch2.
-  void verify_oop_array (size_t size, Register a, Register count, Register temp) {
+  void verify_oop_array (int size, Register a, Register count, Register temp) {
     Label loop, end;
     __ mov(rscratch1, a);
     __ mov(rscratch2, zr);
     __ bind(loop);
     __ cmp(rscratch2, count);
     __ br(Assembler::HS, end);
-    if (size == (size_t)wordSize) {
+    if (size == wordSize) {
       __ ldr(temp, Address(a, rscratch2, Address::lsl(exact_log2(size))));
       __ verify_oop(temp);
     } else {
@@ -1338,7 +1338,7 @@ class StubGenerator: public StubCodeGenerator {
   //   used by generate_conjoint_int_oop_copy().
   //
   address generate_disjoint_copy(size_t size, bool aligned, bool is_oop, address *entry,
-                                  const char *name, bool dest_uninitialized = false) {
+                                 const char *name, bool dest_uninitialized = false) {
     Register s = c_rarg0, d = c_rarg1, count = c_rarg2;
     RegSet saved_reg = RegSet::of(s, d, count);
     __ align(CodeEntryAlignment);
@@ -1367,12 +1367,12 @@ class StubGenerator: public StubCodeGenerator {
       // save regs before copy_memory
       __ push(RegSet::of(d, count), sp);
     }
-    copy_memory(aligned, s, d, count, rscratch1, size);
+    copy_memory(aligned, s, d, count, rscratch1, checked_cast<int>(size));
 
     if (is_oop) {
       __ pop(RegSet::of(d, count), sp);
       if (VerifyOops)
-        verify_oop_array(size, d, count, r16);
+        verify_oop_array(checked_cast<int>(size), d, count, r16);
     }
 
     bs->arraycopy_epilogue(_masm, decorators, is_oop, d, count, rscratch1, RegSet());
@@ -1398,7 +1398,7 @@ class StubGenerator: public StubCodeGenerator {
   // the hardware handle it.  The two dwords within qwords that span
   // cache line boundaries will still be loaded and stored atomically.
   //
-  address generate_conjoint_copy(size_t size, bool aligned, bool is_oop, address nooverlap_target,
+  address generate_conjoint_copy(int size, bool aligned, bool is_oop, address nooverlap_target,
                                  address *entry, const char *name,
                                  bool dest_uninitialized = false) {
     Register s = c_rarg0, d = c_rarg1, count = c_rarg2;
@@ -1644,7 +1644,7 @@ class StubGenerator: public StubCodeGenerator {
   address generate_disjoint_oop_copy(bool aligned, address *entry,
                                      const char *name, bool dest_uninitialized) {
     const bool is_oop = true;
-    const size_t size = UseCompressedOops ? sizeof (jint) : sizeof (jlong);
+    const int size = UseCompressedOops ? sizeof (jint) : sizeof (jlong);
     return generate_disjoint_copy(size, aligned, is_oop, entry, name, dest_uninitialized);
   }
 
@@ -1662,7 +1662,7 @@ class StubGenerator: public StubCodeGenerator {
                                      address nooverlap_target, address *entry,
                                      const char *name, bool dest_uninitialized) {
     const bool is_oop = true;
-    const size_t size = UseCompressedOops ? sizeof (jint) : sizeof (jlong);
+    const int size = UseCompressedOops ? sizeof (jint) : sizeof (jlong);
     return generate_conjoint_copy(size, aligned, is_oop, nooverlap_target, entry,
                                   name, dest_uninitialized);
   }

src/hotspot/cpu/aarch64/templateInterpreterGenerator_aarch64.cpp

@@ -1125,7 +1125,7 @@ void TemplateInterpreterGenerator::bang_stack_shadow_pages(bool native_call) {
   // an interpreter frame with greater than a page of locals, so each page
   // needs to be checked.  Only true for non-native.
   if (UseStackBanging) {
-    const int n_shadow_pages = JavaThread::stack_shadow_zone_size() / os::vm_page_size();
+    const int n_shadow_pages = checked_cast<int>(JavaThread::stack_shadow_zone_size() / os::vm_page_size());
     const int start_page = native_call ? n_shadow_pages : 1;
     const int page_size = os::vm_page_size();
     for (int pages = start_page; pages <= n_shadow_pages ; pages++) {