[Bug rtl-optimization/117938] [15 Regression] wrong code with -O2 --param=max-cse-insns=1 with late-combine (since r15-1735-ge62ea4fb8ffcab)

[ubizjak at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117938

--- Comment #8 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to Andrew Pinski from comment #7)

> It is the moving insn that is the issue.
Please see _.325r.late_combine2 dump, there are *two* equal instructions (as
reported in Comment #5). The compiler is not moving the insn, but copying it.
(insn 338) is exact copy of (insn 176), including REG_ARGS_SIZE expr.