[Bug target/107172] [13 Regression] wrong code with "-O1 -ftree-vrp" on x86_64-linux-gnu since r13-1268-g8c99e307b20c502e
hjl.tools at gmail dot com
gcc-bugzilla@gcc.gnu.org
Fri Oct 7 22:20:53 GMT 2022
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107172
--- Comment #5 from H.J. Lu <hjl.tools at gmail dot com> ---
i386 needs to change
(ltu:SI (const_int 1 [1])
(const_int 0 [0]))
to
(ne:SI (const_int 1 [1])
(const_int 0 [0]))
when checking the carry flag. But the mode info isn't passed to
TARGET_CANONICALIZE_COMPARISON.
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