x86: Update *one_cmplqi_ext<mode>_1

After

commit 965564eafb721f8000013a3112f1bba8d8fae32b
Author: Richard Sandiford <richard.sandiford@arm.com>
Date:   Tue Jul 29 15:58:34 2025 +0100

    simplify-rtx: Simplify subregs of logic ops

combine generates

(set (zero_extract:SI (reg/v:SI 101 [ a ])
        (const_int 8 [0x8])
        (const_int 8 [0x8]))
    (not:SI (sign_extract:SI (reg:SI 107 [ b ])
            (const_int 8 [0x8])
            (const_int 8 [0x8]))))

instead of

(set (zero_extract:SI (reg/v:SI 101 [ a ])
        (const_int 8 [0x8])
        (const_int 8 [0x8]))
    (subreg:SI (not:QI (subreg:QI (sign_extract:SI (reg:SI 107 [ b ])
                    (const_int 8 [0x8])
                    (const_int 8 [0x8])) 0)) 0))

Update *one_cmplqi_ext<mode>_1 to support the new pattern.

	PR target/121306
	* config/i386/i386.md (*one_cmplqi_ext<mode>_1): Updated to
	support the new pattern.

Signed-off-by: H.J. Lu <hjl.tools@gmail.com>

diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index a50475bdaf4c97a4b670dc22857bbc8a80fda230..a9d1948e441091407c4c43e727632d7d3985e43e 100644 (file)
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -15351,13 +15351,11 @@
          (match_operand 0 "int248_register_operand" "+Q,&Q")
          (const_int 8)
          (const_int 8))
-       (subreg:SWI248
-         (not:QI
-           (subreg:QI
-             (match_operator:SWI248 2 "extract_operator"
-               [(match_operand 1 "int248_register_operand" "0,!Q")
-                (const_int 8)
-                (const_int 8)]) 0)) 0))]
+       (not:SWI248
+         (match_operator:SWI248 2 "extract_operator"
+           [(match_operand 1 "int248_register_operand" "0,!Q")
+         (const_int 8)
+         (const_int 8)])))]
   ""
   "@
    not{b}\t%h0
@@ -15370,11 +15368,8 @@
          (match_dup 1) (const_int 8) (const_int 8)))
    (set (zero_extract:SWI248
          (match_dup 0) (const_int 8) (const_int 8))
-       (subreg:SWI248
-         (not:QI
-           (subreg:QI
-             (match_op_dup 2
-               [(match_dup 0) (const_int 8) (const_int 8)]) 0)) 0))]
+       (not:SWI248
+         (match_op_dup 2 [(match_dup 0) (const_int 8) (const_int 8)])))]
   ""
   [(set_attr "type" "negnot")
    (set_attr "mode" "QI")])