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Subject: [Bug middle-end/68112] [6 Regression] FAIL: gcc.target/i386/avx512ifma-vpmaddhuq-2.c (test for excess errors)
Date: Wed, 28 Oct 2015 11:07:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68112

--- Comment #2 from alalaw01 at gcc dot gnu.org ---
So (a << CONSTANT) is not equivalent to a * (1<<CONSTANT), as the former is
well-defined, whereas the latter invokes UB if bits would have been shifted off
the far end.