https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69008
ktkachov at gcc dot gnu.org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2015-12-22 CC| |ktkachov at gcc dot gnu.org Ever confirmed|0 |1 Known to fail| |4.8.5, 4.9.4, 5.3.1, 6.0 --- Comment #1 from ktkachov at gcc dot gnu.org --- Confirmed on all versions that I have access to. The expander emits: (insn 2 5 3 2 (set (reg:SI 113) (plus:SI (reg/f:SI 105 virtual-stack-vars) (const_int -8 [0xfffffffffffffff8]))) missed.c:7 -1 (nil)) (insn 3 2 4 2 (parallel [ (set (mem/c:SI (reg:SI 113) [1 t+0 S4 A32]) (reg:SI 0 r0)) (set (mem/c:SI (plus:SI (reg:SI 113) (const_int 4 [0x4])) [1 t+4 S4 A32]) (reg:SI 1 r1)) ]) missed.c:7 -1 (nil)) (note 4 3 7 2 NOTE_INSN_FUNCTION_BEG) (insn 7 4 8 2 (set (reg:SI 115) (mem/c:SI (plus:SI (reg/f:SI 105 virtual-stack-vars) (const_int -8 [0xfffffffffffffff8])) [2 t.i1+0 S4 A32])) missed.c:8 -1 (nil)) (insn 8 7 9 2 (set (reg:SI 116) (mem/c:SI (plus:SI (reg/f:SI 105 virtual-stack-vars) (const_int -4 [0xfffffffffffffffc])) [2 t.i2+0 S4 A32])) missed.c:8 -1 (nil)) (insn 9 8 10 2 (set (reg:SI 114) (plus:SI (reg:SI 115) (reg:SI 116))) missed.c:8 -1 (nil))