There is a lot of copy & paste code here; we can reduce duplication by making a shared implementation.
Created attachment 99584 [details] Preliminare patch
Created attachment 99585 [details] The patch SunSpider shows a small progression, likely just noise, but this patch will optimize op_loop_if_lesseq!
Attachment 99585 [details] did not pass style-queue: Failed to run "['Tools/Scripts/check-webkit-style', '--diff-files', u'Source/JavaScriptCore/ChangeLog', u'Source..." exit_code: 1 Source/JavaScriptCore/jit/JIT.h:723: The parameter name "condition" adds no information, so it should be removed. [readability/parameter_name] [5] Source/JavaScriptCore/jit/JIT.h:723: emit_compareAndJump is incorrectly named. Don't use underscores in your identifier names. [readability/naming] [4] Source/JavaScriptCore/jit/JIT.h:724: The parameter name "condition" adds no information, so it should be removed. [readability/parameter_name] [5] Source/JavaScriptCore/jit/JIT.h:724: The parameter name "iter" adds no information, so it should be removed. [readability/parameter_name] [5] Source/JavaScriptCore/jit/JIT.h:724: emit_compareAndJumpSlow is incorrectly named. Don't use underscores in your identifier names. [readability/naming] [4] Source/JavaScriptCore/jit/JITArithmetic32_64.cpp:87: JIT::emit_compareAndJump is incorrectly named. Don't use underscores in your identifier names. [readability/naming] [4] Source/JavaScriptCore/jit/JITArithmetic32_64.cpp:138: JIT::emit_compareAndJumpSlow is incorrectly named. Don't use underscores in your identifier names. [readability/naming] [4] Source/JavaScriptCore/jit/JITArithmetic.cpp:318: JIT::emit_compareAndJump is incorrectly named. Don't use underscores in your identifier names. [readability/naming] [4] Source/JavaScriptCore/jit/JITArithmetic.cpp:362: JIT::emit_compareAndJumpSlow is incorrectly named. Don't use underscores in your identifier names. [readability/naming] [4] Total errors found: 9 in 5 files If any of these errors are false positives, please file a bug against check-webkit-style.
Fixed in r90352