Dependent Labels Question

Iyer, Balaji V balaji.v.iyer@intel.com
Thu Nov 3 19:55:00 GMT 2011


Hello Everyone,
	Is it possible in GCC to create a label that is some-how dependent on a RTL INSN (i.e. if the RTL INSN moves, the label moves with it)?

For example: In the below code

   	...
	Add r1, r2, r3
	Call some_function
LABELX:                        
	Sub r3, r4, r5
	...
	...

Is it possible to make sure that the "LABELX" occurs right after the "Call some_function" instruction (and the instruction scheduler moves the label with the call INSN)? I insert the label right after the call is expanded and LABELX is being moved above the Call instruction by the schedule_insns function.

Thanks,

Balaji V. Iyer.



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