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Commit f1b76811 authored by Richard Biener's avatar Richard Biener
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better PHI copy propagation for forwprop 

We can handle _1 = PHI <_1, _2> as a copy.

	PR tree-optimization/84646
	* tree-ssa-forwprop.cc (pass_forwprop::execute): Improve
	copy propagation across PHIs.
parent 2f6cb9c5
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