https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92140
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
So, what combine attempts here and fails recognizing is in tst1:
(parallel [
(set (mem/c:SI (symbol_ref:DI ("v") [flags 0x40] <var_decl
0x7f142dbe6bd0 v>) [1 v+0 S4 A32])
(plus:SI (ne:SI (mem:QI (plus:DI (reg:DI 89 [ c ])
(symbol_ref:DI ("table") [flags 0x40] <var_decl
0x7f142dbe6ab0 table>)) [0 table S1 A8])
(const_int 0 [0]))
(mem/c:SI (symbol_ref:DI ("v") [flags 0x40] <var_decl
0x7f142dbe6bd0 v>) [1 v+0 S4 A32])))
(clobber (reg:CC 17 flags))
])
in tst2:
(parallel [
(set (mem/c:SI (symbol_ref:DI ("v") [flags 0x40] <var_decl
0x7f142dbe6bd0 v>) [1 v+0 S4 A32])
(minus:SI (mem/c:SI (symbol_ref:DI ("v") [flags 0x40] <var_decl
0x7f142dbe6bd0 v>) [1 v+0 S4 A32])
(ne:SI (mem:QI (plus:DI (reg:DI 89 [ c ])
(symbol_ref:DI ("table") [flags 0x40] <var_decl
0x7f142dbe6ab0 table>)) [0 table S1 A8])
(const_int 0 [0]))))
(clobber (reg:CC 17 flags))
])
and in tst3:
(parallel [
(set (reg:SI 82 [ <retval> ])
(plus:SI (ne:SI (reg:SI 86)
(const_int 0 [0]))
(const_int 1 [0x1])))
(clobber (reg:CC 17 flags))
])
