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Commit ef976be1 authored by Richard Biener's avatar Richard Biener Committed by Richard Biener
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re PR middle-end/70359 (Code size increase for x86/ARM/others compared to gcc-5.3.0) 

2018-10-31  Richard Biener  <rguenther@suse.de>

	PR middle-end/70359
	PR middle-end/86270
	* tree-outof-ssa.c (insert_backedge_copies): Restrict
	copy generation to useful cases.  Place the copy before
	the definition of the backedge value when possible.

	* gcc.target/i386/pr70359.c: New testcase.
	* gcc.target/i386/pr86270.c: Likewise.

From-SVN: r265677
parent 635aeaa2
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