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Commit 403c7520 authored by Jakub Jelinek's avatar Jakub Jelinek Committed by Jakub Jelinek
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re PR rtl-optimization/40924 (miscompiles with -O3 (seemingly related to attribute may_alias)) 

	PR rtl-optimization/40924
	* dse.c (canon_address): Before calling cselib_expand_value_rtx
	make sure canon_rtx (mem_address) isn't simpler than
	canon_rtx (expanded_mem_address).

	* g++.dg/torture/pr40924.C: New test.

From-SVN: r150483
parent 64393e40
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