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Commit 0155ed56 authored by Jakub Jelinek's avatar Jakub Jelinek Committed by Jakub Jelinek
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re PR tree-optimization/80443 (ICE on valid code at -O2 on x86_64-linux-gnu:... 

re PR tree-optimization/80443 (ICE on valid code at -O2 on x86_64-linux-gnu: in set_value_range, at tree-vrp.c:367)

	PR tree-optimization/80443
	* tree-vrp.c (intersect_ranges): For signed 1-bit precision type,
	instead of adding 1, subtract -1 and similarly instead of subtracting
	1 add -1.

	* gcc.c-torture/compile/pr80443.c: New test.

From-SVN: r246981
parent f380f608
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