[gcc r16-3522] s390: Adjust s390/spaceship-fp-*.c tests for recent changes

[Jakub Jelinek]

https://gcc.gnu.org/g:a41d8edf304e896cb541a0ec7daafb02b8d442c7

commit r16-3522-ga41d8edf304e896cb541a0ec7daafb02b8d442c7
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Tue Sep 2 17:01:30 2025 +0200

    s390: Adjust s390/spaceship-fp-*.c tests for recent changes
    
    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 gcc.target/s390/spaceship-fp-2.c test,
    with -ffast-math the 2 value is unreachable and so the .SPACESHIP last
    argument in that case is the default, which changed from 2 to -128.
    But spaceship-fp-1.c test also doesn't test what libstdc++ uses anymore,
    so the following patch uses -128 in all the spots.
    
    2025-09-02  Jakub Jelinek  <jakub@redhat.com>
    
            * gcc.target/s390/spaceship-fp-1.c: Expect .SPACESHIP call with
            -128 as last argument instead of 2.
            (TEST): Use -128 instead of 2.
            * gcc.target/s390/spaceship-fp-2.c: Expect .SPACESHIP call with
            -128 as last argument instead of 2.
            (TEST): Use -128 instead of 2.

Diff:
---
 gcc/testsuite/gcc.target/s390/spaceship-fp-1.c | 4 ++--
 gcc/testsuite/gcc.target/s390/spaceship-fp-2.c | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/gcc/testsuite/gcc.target/s390/spaceship-fp-1.c b/gcc/testsuite/gcc.target/s390/spaceship-fp-1.c
index 56c3d77de3ce..34b9ba66d7b0 100644
--- a/gcc/testsuite/gcc.target/s390/spaceship-fp-1.c
+++ b/gcc/testsuite/gcc.target/s390/spaceship-fp-1.c
@@ -1,6 +1,6 @@
 /* { dg-do compile { target lp64 } } */
 /* { dg-options "-O2 -mzarch -march=z13 -fdump-tree-optimized" } */
-/* { dg-final { scan-tree-dump-times {\.SPACESHIP \([^,]+, [^,]+, 2\)} 3 optimized } } */
+/* { dg-final { scan-tree-dump-times {\.SPACESHIP \([^,]+, [^,]+, -128\)} 3 optimized } } */
 /* { dg-final { scan-assembler-times {\tk[edx]br\t} 3 } } */
 /* { dg-final { scan-assembler-not {\tbrc} } } */
 /* { dg-final { scan-assembler-not {\tc[edx]br\t} } } */
@@ -15,7 +15,7 @@
     else if (x > y)		\
       return 1;			\
     else			\
-      return 2;			\
+      return -128;		\
   }
 
 TEST (float, float)
diff --git a/gcc/testsuite/gcc.target/s390/spaceship-fp-2.c b/gcc/testsuite/gcc.target/s390/spaceship-fp-2.c
index 0c6e6b6aeb4f..6fe4d22b2783 100644
--- a/gcc/testsuite/gcc.target/s390/spaceship-fp-2.c
+++ b/gcc/testsuite/gcc.target/s390/spaceship-fp-2.c
@@ -1,6 +1,6 @@
 /* { dg-do compile { target lp64 } } */
 /* { dg-options "-O2 -mzarch -march=z13 -ffinite-math-only -fdump-tree-optimized" } */
-/* { dg-final { scan-tree-dump-times {\.SPACESHIP \([^,]+, [^,]+, 2\)} 3 optimized } } */
+/* { dg-final { scan-tree-dump-times {\.SPACESHIP \([^,]+, [^,]+, -128\)} 3 optimized } } */
 /* { dg-final { scan-assembler-times {\tc[edx]br\t} 3 } } */
 /* { dg-final { scan-assembler-not {\tbrc} } } */
 /* { dg-final { scan-assembler-not {\tk[edx]br\t} } } */
@@ -15,7 +15,7 @@
     else if (x > y)		\
       return 1;			\
     else			\
-      return 2;			\
+      return -128;		\
   }
 
 TEST (float, float)