[heap, baseline] Implement shared write barrier for baseline compiler

Baseline write barrier needs to use different page flag mask to also
call into the slow path of the barrier for old-to-shared pointers.

Bug: v8:11708
Change-Id: I955f30376f3de912b418298cdcf1e38dd2adda2e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3834254
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82538}

src/codegen/arm/macro-assembler-arm.cc

@@ -815,8 +815,9 @@ void MacroAssembler::RecordWrite(Register object, Operand offset,
     JumpIfSmi(value, &done);
   }
 
-  CheckPageFlag(value, MemoryChunk::kPointersToHereAreInterestingMask, eq,
-                &done);
+  CheckPageFlag(value,
+                MemoryChunk::kPointersToHereAreInterestingOrInSharedHeapMask,
+                eq, &done);
   CheckPageFlag(object, MemoryChunk::kPointersFromHereAreInterestingMask, eq,
                 &done);
 

src/codegen/arm64/macro-assembler-arm64.cc

@@ -3501,8 +3501,9 @@ void MacroAssembler::RecordWrite(Register object, Operand offset,
     DCHECK_EQ(0, kSmiTag);
     JumpIfSmi(value, &done);
   }
-  CheckPageFlag(value, MemoryChunk::kPointersToHereAreInterestingMask, ne,
-                &done);
+  CheckPageFlag(value,
+                MemoryChunk::kPointersToHereAreInterestingOrInSharedHeapMask,
+                ne, &done);
 
   CheckPageFlag(object, MemoryChunk::kPointersFromHereAreInterestingMask, ne,
                 &done);

src/codegen/ia32/macro-assembler-ia32.cc

@@ -526,8 +526,8 @@ void MacroAssembler::RecordWrite(Register object, Register slot_address,
 
   CheckPageFlag(value,
                 value,  // Used as scratch.
-                MemoryChunk::kPointersToHereAreInterestingMask, zero, &done,
-                Label::kNear);
+                MemoryChunk::kPointersToHereAreInterestingOrInSharedHeapMask,
+                zero, &done, Label::kNear);
   CheckPageFlag(object,
                 value,  // Used as scratch.
                 MemoryChunk::kPointersFromHereAreInterestingMask, zero, &done,

src/codegen/x64/macro-assembler-x64.cc

@@ -655,8 +655,8 @@ void MacroAssembler::RecordWrite(Register object, Register slot_address,
 
   CheckPageFlag(value,
                 value,  // Used as scratch.
-                MemoryChunk::kPointersToHereAreInterestingMask, zero, &done,
-                Label::kNear);
+                MemoryChunk::kPointersToHereAreInterestingOrInSharedHeapMask,
+                zero, &done, Label::kNear);
 
   CheckPageFlag(object,
                 value,  // Used as scratch.