Compiler crash (segmentation fault) when declare a function with generic type that conform to a protocol and there are type casting in function

Originator:pitiphong.ph
Number:rdar://20481483 Date Originated:09-Apr-2015 07:35 PM
Status:Open Resolved:
Product:Developer Tools Product Version:Xcode 6.3
Classification:Crash/Hang/Data Loss Reproducible:Always
 
Summary:
Compiler crash (segmentation fault) when declare a function with generic type that conform to a protocol and there are type casting in function

Steps to Reproduce:
1. Open attached Playground file
2. Execute Playground

Expected Results:
The attached code should work correctly

Actual Results:
Compiler crash

Regression:


Notes:
When I compile this code in a project, Xcode says that compiler is segmentation faults

Comments


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