[PR PATCH] openjdk9-bootstrap: fix build with gcc12

[oreo639 <oreo639@users.noreply.github.com>]

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There is a new pull request by oreo639 against master on the void-packages repository

https://github.com/oreo639/void-packages openjdk9
https://github.com/void-linux/void-packages/pull/39963

openjdk9-bootstrap: fix build with gcc12
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#### Testing the changes
- I tested the changes in this PR: **briefly**

https://github.com/void-linux/void-packages/issues/39809

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A patch file from https://github.com/void-linux/void-packages/pull/39963.patch is attached

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From d8a83f4a02ba64018cdd065f208238c883cb2477 Mon Sep 17 00:00:00 2001
From: oreo639 <oreo6391@gmail.com>
Date: Sat, 15 Oct 2022 02:16:25 -0700
Subject: [PATCH] openjdk9-bootstrap: fix build with gcc12

---
 .../fix-pointer-comparison-gcc12.patch        | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 srcpkgs/openjdk9-bootstrap/patches/fix-pointer-comparison-gcc12.patch

diff --git a/srcpkgs/openjdk9-bootstrap/patches/fix-pointer-comparison-gcc12.patch b/srcpkgs/openjdk9-bootstrap/patches/fix-pointer-comparison-gcc12.patch
new file mode 100644
index 000000000000..19b0a58e50a8
--- /dev/null
+++ b/srcpkgs/openjdk9-bootstrap/patches/fix-pointer-comparison-gcc12.patch
@@ -0,0 +1,22 @@
+--- a/hotspot/src/share/vm/opto/lcm.cpp
++++ b/hotspot/src/share/vm/opto/lcm.cpp
+@@ -60,7 +60,7 @@
+ // Check whether val is not-null-decoded compressed oop,
+ // i.e. will grab into the base of the heap if it represents NULL.
+ static bool accesses_heap_base_zone(Node *val) {
+-  if (Universe::narrow_oop_base() > 0) { // Implies UseCompressedOops.
++  if (Universe::narrow_oop_base() > (address)0) { // Implies UseCompressedOops.
+     if (val && val->is_Mach()) {
+       if (val->as_Mach()->ideal_Opcode() == Op_DecodeN) {
+         // This assumes all Decodes with TypePtr::NotNull are matched to nodes that
+--- a/hotspot/src/share/vm/memory/virtualspace.cpp
++++ b/hotspot/src/share/vm/memory/virtualspace.cpp
+@@ -581,7 +581,7 @@ ReservedHeapSpace::ReservedHeapSpace(siz
+   assert(markOopDesc::encode_pointer_as_mark(&_base[size])->decode_pointer() == &_base[size],
+          "area must be distinguishable from marks for mark-sweep");
+ 
+-  if (base() > 0) {
++  if (base() > (char*)0) {
+     MemTracker::record_virtual_memory_type((address)base(), mtJavaHeap);
+   }
+ }