[Bug target/84710] [8 Regression] ICE: RTL check: expected code 'reg', have 'subreg' in rhs_regno, at rtl.h:1896 with -O -fno-forward-propagate
zsojka at seznam dot cz
gcc-bugzilla@gcc.gnu.org
Tue Mar 6 10:03:00 GMT 2018
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84710
--- Comment #6 from Zdenek Sojka <zsojka at seznam dot cz> ---
(In reply to Segher Boessenkool from comment #4)
> The testcase has UB of course (d is undefined).
The original testcase had defined behavior. The uninitialized use is the result
of delta/creduce reduction. There was an ICE with the unreduced testcase as
well.
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