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From: "segher at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/54089] [SH] Refactor shift patterns
Date: Wed, 21 Jun 2023 20:32:49 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D54089

--- Comment #88 from Segher Boessenkool <segher at gcc dot gnu.org> ---
(In reply to Oleg Endo from comment #85)
> > +/* { dg-final { scan-assembler "_f_loop1_rshift:.*mov\.l\\t(\.L\[0-9\]=
+),(r\[0-9\]+).*sts.l\\tpr,@-r15.*(\.L\[0-9\]+):.*jsr\\t@\\2.*bf\.s\\t\\3.*=
\\1:\\n\\t\.long\\t___ashiftrt_r4_6.*_f_loop2_rshift:" { target { ! has_dyn=
_shift } } } }  */
>=20
> Can you try to somehow write this in a simpler way?  Maybe omit some of t=
he
> register number matches, as they don't matter etc.

Do not use double-quoted strings unless you need interpolation?  If you use=
 {}
around the string you do not need to backslash-quote (and double-quote) so =
much
at all.

[0-9] is \d

whitespace is \s

See the Tcl re_syntax manual page :-)=