[binutils-gdb] [gdb/testsuite] Fix gdb.base/infcall-nested-structs.c regression

[Tom de Vries]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=e06358a0c13a86a7f576c3f024795a031f9c4be2

commit e06358a0c13a86a7f576c3f024795a031f9c4be2
Author: Tom de Vries <tdevries@suse.de>
Date:   Sat Feb 21 22:38:30 2026 +0100

    [gdb/testsuite] Fix gdb.base/infcall-nested-structs.c regression
    
    Since commit 120072c7cdc ("gdb/testsuite: update C++ tests for volatile
    changes in C++20") I see regressions in two test-cases:
    ...
    $ ./sum.sh
       4300 gdb.base/infcall-nested-structs-c++.exp:
       2500 gdb.base/infcall-nested-structs-c.exp:
    ...
    
    In more detail, in test-case gdb.base/infcall-nested-structs-c++.exp:
    ...
    (gdb) tbreak 421^M
    No compiled code for line 421 in the current file.^M
    Make breakpoint pending on future shared library load? (y or [n]) n^M
    (gdb) FAIL: $exp: types-tc: gdb_breakpoint: set breakpoint at 421
    ...
    
    Fix this by reverting the change done by the commit, and applying the same fix
    as the commit applied elsewhere:
    ...
    -  v++;
    +  v = v + 1;
    ...
    
    Tested on x86_64-linux, with target boards unix and unix/-std=c++20.
    
    Approved-By: Andrew Burgess <aburgess@redhat.com>
    
    Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=33915

Diff:
---
 gdb/testsuite/gdb.base/infcall-nested-structs.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/gdb/testsuite/gdb.base/infcall-nested-structs.c b/gdb/testsuite/gdb.base/infcall-nested-structs.c
index 9b083f15f11..b9512a597ab 100644
--- a/gdb/testsuite/gdb.base/infcall-nested-structs.c
+++ b/gdb/testsuite/gdb.base/infcall-nested-structs.c
@@ -406,10 +406,12 @@ call_all ()
   return val;
 }
 
+int volatile v = 1;
+
 void __attribute__((noinline)) ATTRIBUTE_NOCLONE
 breakpt (void)
 {
-  /* Nothing.  */
+  v = v + 1;
 }
 
 int