From d4a6b4ac5b6d9a6585616cf8a5ec4a1a8928826b Mon Sep 17 00:00:00 2001 From: "mstarzinger@chromium.org" Date: Mon, 22 Aug 2011 09:10:47 +0000 Subject: [PATCH] Make instruction for write barrier smaller. R=yangguo@chromium.org BUG=v8:1495 Review URL: http://codereview.chromium.org/7703007 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8978 ce2b1a6d-e550-0410-aec6-3dcde31c8c00 --- src/ia32/macro-assembler-ia32.cc | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/ia32/macro-assembler-ia32.cc b/src/ia32/macro-assembler-ia32.cc index 04e6cde..9df5cad 100644 --- a/src/ia32/macro-assembler-ia32.cc +++ b/src/ia32/macro-assembler-ia32.cc @@ -69,8 +69,8 @@ void MacroAssembler::RecordWriteHelper(Register object, // Compute number of region covering addr. See Page::GetRegionNumberForAddress // method for more details. - and_(addr, Page::kPageAlignmentMask); shr(addr, Page::kRegionSizeLog2); + and_(addr, Page::kPageAlignmentMask >> Page::kRegionSizeLog2); // Set dirty mark for region. // Bit tests with a memory operand should be avoided on Intel processors, -- 2.7.4