[binutils-gdb] tc-i386.c s_insn and input_line_pointer

[Alan Modra]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=af373d1a1a023a12b107230eb4ebd33ca3e7f57b

commit af373d1a1a023a12b107230eb4ebd33ca3e7f57b
Author: Alan Modra <amodra@gmail.com>
Date:   Mon Apr 20 10:01:17 2026 +0930

    tc-i386.c s_insn and input_line_pointer
    
    A comment in check_Scc_OszcOperations says:
          /* No need to save/restore input_line_pointer; that's done in the
             caller already.  */
    That isn't true always.  Fix a case where input_line_pointer is not
    restored and ignore_rest_of_line() accesses a wild pointer.
    
            * gas/config/tc-i386.c (s_insn <bad>): Restore input_line_pointer.

Diff:
---
 gas/config/tc-i386.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c
index 5ce83b0ac71..988b024f0b8 100644
--- a/gas/config/tc-i386.c
+++ b/gas/config/tc-i386.c
@@ -13568,6 +13568,7 @@ s_insn (int dummy ATTRIBUTE_UNUSED)
     {
   bad:
       *saved_ilp = saved_char;
+      input_line_pointer = saved_ilp;
       ignore_rest_of_line ();
       i.tm.mnem_off = 0;
       memset (&pp, 0, sizeof (pp));