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Unified Diff: src/arm/macro-assembler-arm.h

Issue 2144006: Cardmarking writebarrier. (Closed)
Patch Set: change NewSpace and SemiSpace Contains to match HasHeapObjectTag Created 10 years, 7 months ago
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Index: src/arm/macro-assembler-arm.h
diff --git a/src/arm/macro-assembler-arm.h b/src/arm/macro-assembler-arm.h
index 9cf93da3418b81f92d34f08981c99cbbc8330260..7ce3b78fac3b55c7fc489de863a507c9d41d589e 100644
--- a/src/arm/macro-assembler-arm.h
+++ b/src/arm/macro-assembler-arm.h
@@ -114,16 +114,14 @@ class MacroAssembler: public Assembler {
Label* branch);
- // Set the remebered set bit for an offset into an
- // object. RecordWriteHelper only works if the object is not in new
- // space.
+ // For the page containing |object| mark the region covering [object+offset]
+ // dirty. The object address must be in the first 8K of an allocated page.
void RecordWriteHelper(Register object, Register offset, Register scracth);
- // Sets the remembered set bit for [address+offset], where address is the
- // address of the heap object 'object'. The address must be in the first 8K
- // of an allocated page. The 'scratch' register is used in the
- // implementation and all 3 registers are clobbered by the operation, as
- // well as the ip register.
+ // For the page containing |object| mark the region covering [object+offset]
+ // dirty. The object address must be in the first 8K of an allocated page.
+ // The 'scratch' register is used in the implementation and all 3 registers
+ // are clobbered by the operation, as well as the ip register.
void RecordWrite(Register object, Register offset, Register scratch);
// Push two registers. Pushes leftmost register first (to highest address).
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