112400 2013-03-14 20:22:46 -0700 [iOS] Update StringImpl's equal to have a single version on all supported Apple CPUs 2013-03-19 12:55:06 -0700 1 1 1 Unclassified WebKit New Bugs 528+ (Nightly build) Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 benjamin benjamin abarth barraclough cmarcelo fpizlo ojan.autocc psolanki webkit.review.bot oldest_to_newest 855663 0 benjamin 2013-03-14 20:22:46 -0700 [iOS] Update StringImpl's equal to have a single version on all supported Apple CPUs 855665 1 193225 benjamin 2013-03-14 20:32:27 -0700 Created attachment 193225 Patch 855668 2 benjamin 2013-03-14 20:38:29 -0700 <rdar://problem/12437844> 856197 3 193354 benjamin 2013-03-15 12:36:35 -0700 Created attachment 193354 Patch 856258 4 193354 msaboff 2013-03-15 13:47:19 -0700 Comment on attachment 193354 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=193354&action=review I'd prefer a little more descriptive labels, but that predates this patch. > Source/WTF/ChangeLog:15 > + each iteration and work in the negative space for the tail. This free one register typo, should be "frees" > Source/WTF/ChangeLog:18 > + negative space, we can test for the Carry flag to jumb back to the next LDR. typo, should be "jump" 856325 5 benjamin 2013-03-15 15:13:13 -0700 Committed r145949: <http://trac.webkit.org/changeset/145949> 856328 6 benjamin 2013-03-15 15:14:34 -0700 I ended up keeping the labels. For some reason, I still got linking error with %= once compiling in release. 856333 7 benjamin 2013-03-15 15:18:18 -0700 For anyone interested in using the same code. You can use this on any hardware with: -It supports unaligned LDR and LDRH (in hardware, otherwise there is no point). -The A bit in the CP15 C1 Control Register must be Clear. 858644 8 abarth 2013-03-19 12:55:06 -0700 Is there a benchmark that shows this patch is a win? It seems sad to have a PLATFORM(IOS) ifdef in StringImpl.h. 193225 2013-03-14 20:32:27 -0700 2013-03-15 12:36:34 -0700 Patch bug-112400-20130314202823.patch text/plain 4652 benjamin U3VidmVyc2lvbiBSZXZpc2lvbjogMTQ1ODY4CmRpZmYgLS1naXQgYS9Tb3VyY2UvV1RGL0NoYW5n ZUxvZyBiL1NvdXJjZS9XVEYvQ2hhbmdlTG9nCmluZGV4IGVkMmViMzY5ZWNjNDMwMDM3ODI1YTgy ZjU3OGYwODllODJkMjk4MDQuLmRlZTc0NjJmNWJlN2U0ZjE2OWZlMjRlNzIwZWZmNDE0ODVmZDZm ODMgMTAwNjQ0Ci0tLSBhL1NvdXJjZS9XVEYvQ2hhbmdlTG9nCisrKyBiL1NvdXJjZS9XVEYvQ2hh bmdlTG9nCkBAIC0xLDMgKzEsMjIgQEAKKzIwMTMtMDMtMTQgIEJlbmphbWluIFBvdWxhaW4gIDxi cG91bGFpbkBhcHBsZS5jb20+CisKKyAgICAgICAgW2lPU10gVXBkYXRlIFN0cmluZ0ltcGwncyBl cXVhbCB0byBoYXZlIGEgc2luZ2xlIHZlcnNpb24gb24gYWxsIHN1cHBvcnRlZCBBcHBsZSBDUFVz CisgICAgICAgIGh0dHBzOi8vYnVncy53ZWJraXQub3JnL3Nob3dfYnVnLmNnaT9pZD0xMTI0MDAK KworICAgICAgICBSZXZpZXdlZCBieSBOT0JPRFkgKE9PUFMhKS4KKworICAgICAgICAqIHd0Zi90 ZXh0L1N0cmluZ0ltcGwuaDoKKyAgICAgICAgKFdURjo6ZXF1YWwpOgorICAgICAgICBUd2VhayB0 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