MIPS: Never hchange nan-hole to hole or hole to nan-hole. Only allow changing hole...
authorpalfia@homejinni.com <palfia@homejinni.com@ce2b1a6d-e550-0410-aec6-3dcde31c8c00>
Wed, 14 Aug 2013 23:07:48 +0000 (23:07 +0000)
committerpalfia@homejinni.com <palfia@homejinni.com@ce2b1a6d-e550-0410-aec6-3dcde31c8c00>
Wed, 14 Aug 2013 23:07:48 +0000 (23:07 +0000)
commitaaeca64dd62f1dff3003955cf5b199561ce3ceb9
treedc1acd8390555f2c2d1701754f30b9febe88a1e1
parent48ff27831c72f6cdb000c775f549b323170939e9
MIPS: Never hchange nan-hole to hole or hole to nan-hole. Only allow changing hole to nan if all uses allow undefined as nan.

Port r16183 (1858bc57)

BUG=

Review URL: https://codereview.chromium.org/23130006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16200 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
src/mips/lithium-codegen-mips.cc
src/mips/lithium-codegen-mips.h
src/mips/lithium-mips.cc
src/mips/lithium-mips.h
src/mips/macro-assembler-mips.h