https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113441
--- Comment #1 from JuzheZhong <juzhe.zhong at rivai dot ai> --- GCC trunk RVV also process 11 elements in vector: https://godbolt.org/z/q9bb8Gj4G ``` vsetivli zero,11,e32,m1,ta,ma ``` vector codes ``` lh s8,0(t4) lh t4,0(t1) ld t1,16(sp) add a3,a4,t1 lh a7,0(a7) add t3,a4,s9 slli t3,t3,1 slli a3,a3,1 add t3,a2,t3 add a3,a2,a3 add a1,a5,t5 mulw t0,s6,s8 lh t5,0(t3) lh t3,0(a3) add a3,a5,t1 add a0,a5,s9 slli a0,a0,1 add a0,a2,a0 lh a0,0(a0) slli a1,a1,1 add a1,a2,a1 mulw t1,s5,a7 lh a1,0(a1) slli a3,a3,1 add a3,a2,a3 lh a3,0(a3) add a4,s7,a4 slli a4,a4,1 add a4,t6,a4 add a5,s7,a5 slli a5,a5,1 mulw s8,s5,s8 subw t0,t0,t1 add a5,t6,a5 addiw a6,a6,24 mulw a7,s6,a7 mulw t1,s4,t5 addw a7,a7,s8 mulw t5,s3,t5 mulw s8,s3,a0 mulw a0,s4,a0 subw t1,t1,s8 addw t1,t0,t1 addw a0,a0,t5 addw a0,a7,a0 mulw t0,s2,t4 mulw a7,s1,a1 mulw t4,s1,t4 subw t0,t0,a7 addw t0,t0,t1 mulw a1,s2,a1 addw a1,a1,t4 mulw a7,s0,t3 addw a1,a1,a0 mulw a0,t2,a3 subw a7,a7,a0 addw a7,a7,t0 sraiw a7,a7,15 sh a7,0(a4) mulw t3,t2,t3 mulw a4,s0,a3 addw a4,a4,t3 addw a4,a4,a1 sraiw a4,a4,15 sh a4,0(a5) bne a6,s11,.L4 ld a0,56(sp) addiw a5,a0,1 slli a0,a5,48 ld t4,72(sp) ld t1,64(sp) srli a0,a0,48 ld a5,80(sp) ld a7,48(sp) addw t1,t4,t1 addw s11,t4,a6 bne a0,a5,.L6 Same issue as ARM SVE, I think the tail scalar operations can be folded into vector operations.
