[Webkit-unassigned] [Bug 125920] New: [MIPS] Use shorter j <address> jump in MacroAssembler::replaceWithJump.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=125920

           Summary: [MIPS] Use shorter j <address> jump in
                    MacroAssembler::replaceWithJump.
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: kilvadyb at homejinni.com
                CC: ggaren at apple.com, fu at mips.com, msaboff at apple.com,
                    fpizlo at apple.com, gergely at homejinni.com,
                    palfia at homejinni.com, jbriance at cisco.com


Using a simpler direct "jump to address" instead of "jump register" instructions in MacroAssembler::replaceWithJump we could generate smaller code and we don't need additional nops in branchTrue() and branchFalse(). For this we need to ensure that the generated JIT code is within a 256MB-aligned region. This problem is discussed in
https://bugs.webkit.org/show_bug.cgi?id=103146

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