RISC-V: Fix wrong partial subreg check for bsetidisi

The partial subreg check should be for subreg operand(operand 1) instead of
the immediate operand(operand 2). This change also fix pr68648.c in zbs.

gcc/ChangeLog:

	* config/riscv/bitmanip.md: Fix wrong index in the check.
Reviewed-by: <philipp.tomsich@vrull.eu>

diff --git a/gcc/config/riscv/bitmanip.md b/gcc/config/riscv/bitmanip.md
index 14d18edbe62bbbc1bf843d465a443dbf7a7eaecc..58a86bd929f1305715800b5e43d6b66679a64758 100644 (file)
--- a/gcc/config/riscv/bitmanip.md
+++ b/gcc/config/riscv/bitmanip.md
@@ -442,7 +442,7 @@
        (ior:DI (sign_extend:DI (match_operand:SI 1 "register_operand" "r"))
                (match_operand 2 "single_bit_mask_operand" "i")))]
   "TARGET_ZBS && TARGET_64BIT
-   && !partial_subreg_p (operands[2])"
+   && !partial_subreg_p (operands[1])"
   "bseti\t%0,%1,%S2"
   [(set_attr "type" "bitmanip")])