[gcc r16-3583] aarch64: Adjust aarch64/spaceship_1.C testcase for recent changes [PR121732]

[Jakub Jelinek]

https://gcc.gnu.org/g:e2e01a893c1770e23ec1a573403688198c321b0e

commit r16-3583-ge2e01a893c1770e23ec1a573403688198c321b0e
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Thu Sep 4 18:52:47 2025 +0200

    aarch64: Adjust aarch64/spaceship_1.C testcase for recent changes [PR121732]
    
    In r16-3414 libstdc++ changed ABI for (still experimental C++20) and uses
    unordered value -128 instead of 2.  Generally the change improved code
    generation on all targets tested, see
    https://gcc.gnu.org/pipermail/gcc-patches/2025-August/693534.html
    for details.
    In r16-3474 I've adjusted the middle-end and backends to use that value.
    This apparently broke the spaceship_1.C test on aarch64 which scans the
    exact function bodies which are now different.
    
    The following patch adjusts the full body patterns to match.  On these
    2 routines, the generated code is 1 insn longer than in the past, so if
    you have ideas how to change the code generation for the common case of
    -1, 0, 1, -128 value, maybe it could be improved.
    
    2025-09-04  Jakub Jelinek  <jakub@redhat.com>
    
            PR testsuite/121732
            PR target/117013
            * g++.target/aarch64/spaceship_1.C: Adjust expected fn bodies
            for _Z8ss_floatff and _Z9ss_doubledd.

Diff:
---
 gcc/testsuite/g++.target/aarch64/spaceship_1.C | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/gcc/testsuite/g++.target/aarch64/spaceship_1.C b/gcc/testsuite/g++.target/aarch64/spaceship_1.C
index e6daf6218ca5..2dfc9726883c 100644
--- a/gcc/testsuite/g++.target/aarch64/spaceship_1.C
+++ b/gcc/testsuite/g++.target/aarch64/spaceship_1.C
@@ -34,8 +34,9 @@
 ** _Z8ss_floatff:
 **	fcmpe	s0, s1
 **	csinv	(w[0-9]+), wzr, wzr, pl
-**	cset	(w[0-9]+), vs
-**	csinc	w0, \1, \2, ls
+**	mov	(w[0-9]+), -129
+**	csel	(w[0-9]+), \2, wzr, vs
+**	csinc	w0, \1, \3, ls
 **	ret
 */
 SPACESHIP_FN(float);
@@ -53,8 +54,9 @@ SPACESHIP_FN_NN(float);
 ** _Z9ss_doubledd:
 **	fcmpe	d0, d1
 **	csinv	(w[0-9]+), wzr, wzr, pl
-**	cset	(w[0-9]+), vs
-**	csinc	w0, \1, \2, ls
+**	mov	(w[0-9]+), -129
+**	csel	(w[0-9]+), \2, wzr, vs
+**	csinc	w0, \1, \3, ls
 **	ret
 */
 SPACESHIP_FN(double);