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My recent change to get_narrower/warnings_for_convert_and_check broke the following testcase, warnings_for_convert_and_check is upset that expr is a COMPOUND_EXPR with INTEGER_CST at the rightmost operand, while result is a COMPOUND_EXPR with a NOP_EXPR of INTEGER_CST at the rightmost operand, it expects such conversions to be simplified. The easiest fix seems to be to handle COMPOUND_EXPRs in ocp_convert too, by converting the rightmost operand and recreating COMPOUND_EXPR(s) if that changed. The attr-copy-2.C change is a workaround for PR94346, where we now ICE on the testcase, while previously we'd ICE only if it contained a comma expression at the outer level rather than cast of a COMPOUND_EXPR to something. I'll defer that to Martin. 2020-03-27 Jakub Jelinek <jakub@redhat.com> PR c++/94339 * cvt.c (ocp_convert): Handle COMPOUND_EXPR by recursion on the second operand and creating a new COMPOUND_EXPR if anything changed. * g++.dg/other/pr94339.C: New test. * g++.dg/ext/attr-copy-2.C: Comment out failing tests due to PR94346.
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