[gcc r17-2368] i386: Add -mtune=generic to highpart multiplication tests

https://gcc.gnu.org/g:b1f11b54d85f9e4537aaed99166aeba0cecb4b35

commit r17-2368-gb1f11b54d85f9e4537aaed99166aeba0cecb4b35
Author: MITSUNARI Shigeo <[email protected]>
Date:   Mon Jul 13 14:33:58 2026 -0600

    i386: Add -mtune=generic to highpart multiplication tests
    
    The check-function-bodies patterns in bmi2-mulx-highpart-1.c and
    mulq-highpart.c expect the instruction order produced with generic
    tuning.  With -march=cascadelake the scheduler swaps the movl and
    movabsq instructions, so pin -mtune=generic.
    
    gcc/testsuite/ChangeLog:
    
            * gcc.target/i386/bmi2-mulx-highpart-1.c: Add -mtune=generic
            to dg-options.
            * gcc.target/i386/mulq-highpart.c: Likewise.

Diff:
---
 gcc/testsuite/gcc.target/i386/bmi2-mulx-highpart-1.c | 2 +-
 gcc/testsuite/gcc.target/i386/mulq-highpart.c        | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/gcc/testsuite/gcc.target/i386/bmi2-mulx-highpart-1.c b/gcc/testsuite/gcc.target/i386/bmi2-mulx-highpart-1.c
index 8b3b6725d1b2..ccb9875f8282 100644
--- a/gcc/testsuite/gcc.target/i386/bmi2-mulx-highpart-1.c
+++ b/gcc/testsuite/gcc.target/i386/bmi2-mulx-highpart-1.c
@@ -1,5 +1,5 @@
 /* { dg-do compile { target { ! ia32 } } } */
-/* { dg-options "-O2 -mbmi2" } */
+/* { dg-options "-O2 -mbmi2 -mtune=generic" } */
 /* { dg-final { check-function-bodies "**" "" "" { target *-*-linux* *-*-gnu* } } } */
 
 /* %edx is fixed by the ISA (implicit mulx source) and %edi by the ABI
diff --git a/gcc/testsuite/gcc.target/i386/mulq-highpart.c b/gcc/testsuite/gcc.target/i386/mulq-highpart.c
index 56728cd5b7c9..fff0eac239ac 100644
--- a/gcc/testsuite/gcc.target/i386/mulq-highpart.c
+++ b/gcc/testsuite/gcc.target/i386/mulq-highpart.c
@@ -1,5 +1,5 @@
 /* { dg-do compile { target { ! ia32 } } } */
-/* { dg-options "-O2 -mno-bmi2" } */
+/* { dg-options "-O2 -mno-bmi2 -mtune=generic" } */
 /* { dg-final { check-function-bodies "**" "" "" { target *-*-linux* *-*-gnu* } } } */
 
 /* %rax, %rdx and %edi are fixed by the ISA (mulq) and the ABI (first