[Bug target/119539] [15 Regression] FAIL: gcc.target/i386/apx-nf.c scan-assembler-times {nf} rol 4

[ubizjak at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119539

--- Comment #3 from Uroš Bizjak <ubizjak at gmail dot com> ---
Comment on attachment 60925
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=60925
Untested fix


>+;; Avoid useless masking of count operand.
>+(define_insn_and_split "*<insn><mode>3_mask_nf"
>+  [(set (match_operand:SWI 0 "nonimmediate_operand")
>+      (any_rotate:SWI
>+        (match_operand:SWI 1 "nonimmediate_operand")
>+        (subreg:QI
>+          (and
>+            (match_operand 2 "int248_register_operand" "c")
>+            (match_operand 3 "const_int_operand")) 0)))]
>+  "ix86_binary_operator_ok (<CODE>, <MODE>mode, operands)
>+   && (INTVAL (operands[3]) & (GET_MODE_BITSIZE (<MODE>mode)-1))
>+      == GET_MODE_BITSIZE (<MODE>mode)-1
>+   && ix86_pre_reload_split ()"
>+  "#"
>+  "&& 1"
>+  [(set (match_dup 0)
>+      (any_rotate:SWI (match_dup 1)
>+                      (match_dup 2)))]
>+{
>+  operands[2] = force_reg (GET_MODE (operands[2]), operands[2]);
>+  operands[2] = gen_lowpart (QImode, operands[2]);

Here you can use force_lowpart_subreg.