[Bug rtl-optimization/105091] RTL dse1 remove stack mem storing incorrectly

[guojiufu at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105091

--- Comment #1 from Jiu Fu Guo <guojiufu at gcc dot gnu.org> ---
Checking the dumps from dse1, some "stack memory store" are deleted
incorrectly.

   12: %3:DI=call [`runtime.newobject'] argc:0
      REG_CALL_DECL `runtime.newobject'
   13: r117:DI=%3:DI
      REG_DEAD %3:DI
   14: [sfp:DI+0x20]=r117:DI
      REG_DEAD r117:DI
dse1 removes instruction 14.