[Webkit-unassigned] [Bug 260869] New: Take additional GPR operand for offlineasm instructions that need a scratch register

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=260869

            Bug ID: 260869
           Summary: Take additional GPR operand for offlineasm
                    instructions that need a scratch register
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ian.grunert at gmail.com

In offlineasm we reserve r11 as a scratch register on x86, for truncatef2q, truncated2q, cq2f, cq2d, absf, absd, negf, negd.

We can change those instructions to take an additional GPR for use as a scratch register, and return the power to choose when to use r11 to the programmer.

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