[gcc r17-2222] [PATCH] RISC-V: Fix dead cpop reservation for spacemit-x60

https://gcc.gnu.org/g:83b0befb611af61e0b4efbbc0ee235fe773ae891

commit r17-2222-g83b0befb611af61e0b4efbbc0ee235fe773ae891
Author: Jim Lin <[email protected]>
Date:   Wed Jul 8 07:59:30 2026 -0600

    [PATCH] RISC-V: Fix dead cpop reservation for spacemit-x60
    
    The type "cpop" was listed in both spacemit_x60_alu (latency 1) and the
    dedicated spacemit_x60_alu2c reservation (latency 2).  Since
    spacemit_x60_alu appears first, it always matched cpop and left
    spacemit_x60_alu2c dead, so cpop was scheduled with the wrong latency.
    
    Remove cpop from spacemit_x60_alu so the dedicated 2-cycle reservation
    takes effect.
    
    gcc/ChangeLog:
    
            * config/riscv/spacemit-x60.md (spacemit_x60_alu): Remove cpop
            from the type list.

Diff:
---
 gcc/config/riscv/spacemit-x60.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/config/riscv/spacemit-x60.md b/gcc/config/riscv/spacemit-x60.md
index 5240655f4586..f23265ad3808 100644
--- a/gcc/config/riscv/spacemit-x60.md
+++ b/gcc/config/riscv/spacemit-x60.md
@@ -116,7 +116,7 @@
   (and (eq_attr "tune" "spacemit_x60")
        (eq_attr "type" "unknown,const,arith,shift,slt,multi,auipc,nop,logical,\
 			move,bitmanip,min,max,minu,maxu,clz,ctz,rotate,\
-			condmove,crypto,mvpair,zicond,cpop"))
+			condmove,crypto,mvpair,zicond"))
   "spacemit_x60_alu")
 
 (define_insn_reservation "spacemit_x60_alu2c" 2