https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100757
--- Comment #8 from Christophe Lyon <clyon at gcc dot gnu.org> ---
At expand time, we have:
(insn 33 32 34 6 (set (reg:V4SI 144)
(const_vector:V4SI [
(const_int 0 [0]) repeated x4
])) "bz-100757.c":5:12 -1
(nil))
(insn 34 33 35 6 (set (reg:HI 143)
(ne:HI (reg:V4SI 126 [ vect_cst__32 ])
(reg:V4SI 144))) "bz-100757.c":5:12 -1
(nil))
(insn 35 34 36 6 (set (reg:V4SI 145)
(const_vector:V4SI [
(const_int 0 [0]) repeated x4
])) "bz-100757.c":5:12 -1
(nil))
(insn 36 35 37 6 (set (reg:V4SI 146)
(const_vector:V4SI [
(const_int 1 [0x1]) repeated x4
])) "bz-100757.c":5:12 -1
(nil))
(insn 37 36 38 6 (set (reg:V4SI 142 [ mask__1.8 ])
(unspec:V4SI [
(reg:V4SI 146)
(reg:V4SI 145)
(reg:HI 143)
] VPSELQ_S)) "bz-100757.c":5:12 -1
(nil))
(insn 38 37 39 6 (set (reg:V4SI 147 [ mask__2.9 ])
(ior:V4SI (reg:V4SI 142 [ mask__1.8 ])
(reg:V4SI 130 [ vect_cst__36 ]))) "bz-100757.c":5:14 -1
(nil))
(insn 39 38 40 6 (set (reg:V4SI 148)
(const_vector:V4SI [
(const_int 1 [0x1]) repeated x4
])) -1
(nil))
(insn 40 39 41 6 (set (reg:V4SI 149)
(const_vector:V4SI [
(const_int 0 [0]) repeated x4
])) -1
(nil))
(insn 41 40 42 6 (set (reg:V4SI 132 [ vect_patt_4.10 ])
(unspec:V4SI [
(reg:V4SI 148)
(reg:V4SI 149)
(reg:V4SI 147 [ mask__2.9 ])
] VPSELQ_S)) -1
(nil))
The problem is with the second VPSELQ_S, where operand 3 is not of HI type.
