[Webkit-unassigned] [Bug 183740] New: [MIPS] Optimize JIT code generated by methods with TrustedImm32 operand

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=183740

            Bug ID: 183740
           Summary: [MIPS] Optimize JIT code generated by methods with
                    TrustedImm32 operand
           Product: WebKit
           Version: Other
          Hardware: Other
                OS: Other
            Status: NEW
          Severity: Enhancement
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: stanislav.ocovaj at rt-rk.com

In many macro assembler methods with TrustedImm32 operand a move imm, immTemp (pseudo)instruction is first generated and a register operand variant of the same method is called to generate the rest of the code. If the immediate value can fit in 16 bits then we can skip the move instruction and generate more efficient code using MIPS instructions with immediate operand.

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