[Bug tree-optimization/100512] [12 Regression] ICE during GIMPLE pass: cddce in mark_operand_necessary, at tree-ssa-dce.c:173 (under -O2 to -Os)

[haoxintu at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100512

--- Comment #1 from Haoxin Tu <haoxintu at gmail dot com> ---

(In reply to Haoxin Tu from comment #0)

> $gcc -w -O2 

Sorry, it's an incomplete command here. It should be "gcc -w -O2 small.c".