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Commit 2c0eba5a authored by Jakub Jelinek's avatar Jakub Jelinek Committed by Jakub Jelinek
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re PR c/39855 (Shift optimization discards operands' side effects) 

	PR c/39855
	* fold-const.c (fold_binary) <case LSHIFT_EXPR>: When optimizing
	into 0, use omit_one_operand.

	* gcc.dg/torture/pr39855.c: New test.

From-SVN: r146617
parent 023f059b
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