http://trac.webkit.org/changeset/55684 broke ARM build, because only x86 macroassembler implement the new functions: branch8 and branchTest8. They should be also implemented by ARM macroassembler and MIPS macroassembler as soon as possible.
ARM fix landed in http://trac.webkit.org/changeset/55718.
Created attachment 50293 [details] Buildfix for Thumb2 after r55684. Add branch8 and branchTest8 functions.
Comment on attachment 50293 [details] Buildfix for Thumb2 after r55684. Add branch8 and branchTest8 functions. // use addressTempRegister incase the branchTest32 we call uses dataTempRegister. :-/ Copy & pasted comment, 'branchTest32' should be 'branchTest8' in this case. The code all looks great, r=me.
Thumb2 was fixed in http://trac.webkit.org/changeset/55834 . MIPS will be fixed at bug 30144 (currently JIT is not enabled). So, we can close this bug.