[gcc r14-5752] testsuite: Add testcase for already fixed PR112518

[gcc r14-5752] testsuite: Add testcase for already fixed PR112518

[Jakub Jelinek]

https://gcc.gnu.org/g:8c24011b2ba0f268e74b72519fc8119c2c99d92b

commit r14-5752-g8c24011b2ba0f268e74b72519fc8119c2c99d92b
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Wed Nov 22 11:31:12 2023 +0100

    testsuite: Add testcase for already fixed PR112518
    
    This PR has been fixed by the PR112526 fix.
    
    2023-11-22  Jakub Jelinek  <jakub@redhat.com>
    
            PR target/112518
            * gcc.target/i386/bmi2-pr112518.c: New test.

Diff:
---
 gcc/testsuite/gcc.target/i386/bmi2-pr112518.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/gcc/testsuite/gcc.target/i386/bmi2-pr112518.c b/gcc/testsuite/gcc.target/i386/bmi2-pr112518.c
new file mode 100644
index 00000000000..6aea13f9be8
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/bmi2-pr112518.c
@@ -0,0 +1,25 @@
+/* PR target/112518 */
+/* { dg-do run { target { bmi2 && int128 } } } */
+/* { dg-options "-Os -mbmi2" } */
+
+#include "bmi2-check.h"
+
+unsigned u;
+int g;
+
+unsigned long long
+foo (int i)
+{
+  unsigned long long x = u;
+  g = __builtin_mul_overflow_p (u, ((unsigned __int128) 4292468825) << 64 | 150, 0);
+  x |= g % i;
+  return x;
+}
+
+static __attribute__((noipa)) void
+bmi2_test ()
+{
+  unsigned long long x = foo (3);
+  if (x)
+    __builtin_abort ();
+}