[xen staging] tools/tests/x86_emulator: fix undefined behaviour in shift

[patchbot@xxxxxxx]

commit c8ff52f87620e43e3fbd809e6450d299b567b900
Author:     Edwin Török <edwin.torok@xxxxxxxxxx>
AuthorDate: Wed Mar 4 08:25:49 2026 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Wed Mar 4 08:25:49 2026 +0100

    tools/tests/x86_emulator: fix undefined behaviour in shift
    
    Fixes this `-fsanitize=undefined` error:
    ```
    test_x86_emulator.c:1103:32: runtime error: left shift of 573785183 by 2 
places cannot be represented in type 'int'
    SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior 
test_x86_emulator.c:1103:32
    ```
    
    Signed-off-by: Edwin Török <edwin.torok@xxxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 tools/tests/x86_emulator/test_x86_emulator.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/tests/x86_emulator/test_x86_emulator.c 
b/tools/tests/x86_emulator/test_x86_emulator.c
index ea507f9c3a..f30568b7f1 100644
--- a/tools/tests/x86_emulator/test_x86_emulator.c
+++ b/tools/tests/x86_emulator/test_x86_emulator.c
@@ -1100,7 +1100,7 @@ int main(int argc, char **argv)
     regs.edi    = (unsigned long)res;
     rc = x86_emulate(&ctxt, &emulops);
     if ( (rc != X86EMUL_OKAY) ||
-         (*res != ((0x2233445F << 2) | 2)) ||
+         (*res != ((0x2233445FU << 2) | 2)) ||
          ((regs.eflags & (EFLAGS_MASK & ~X86_EFLAGS_OF))
           != EFLAGS_ALWAYS_SET) ||
          (regs.eip != (unsigned long)&instr[3]) )
--
generated by git-patchbot for /home/xen/git/xen.git#staging