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Type Test() => "test".GetType();

; Method X:Test():System.Type:this
       sub      rsp, 40
       mov      rcx, 0xD1FFAB1E      ; 'test'
       call     System.Object:GetType():System.Type:this
       nop      
       add      rsp, 40
       ret      
; Total bytes of code: 25

; Method X:Test():System.Type:this
       mov      rax, 0xD1FFAB1E      ; RuntimeType frozen object representing 'System.String'
       ret      
; Total bytes of code: 11

Diffs are small: https://dev.azure.com/dnceng-public/public/_build/results?buildId=294970&view=ms.vss-build-web.run-extensions-tab due to new contexts (see missing contexts values).

We already had this optimization (mostly, for value types) this just extends it a bit 🙂 (not sure I understand why so many likes on it 😆)

PTAL @dotnet/jit-contrib

I love to see this kind of improvement where the number of instructions is going down and down and down! 😅
These little improvements here and there contribute a lot to bigger efforts! 🙌

Keep those coming...🫡🎉