c++: Fix 2 testcases [PR 99601]

[Nathan Sidwell]

I'd failed to correctly restrict some checks to lp64 x86 targets.

        PR c++/99601
        gcc/testsuite/
        * g++.dg/modules/builtin-3_a.C: Fix lp64 x86 detection.
        * g++.dg/modules/builtin-3_b.C: Fix lp64 x86 detection.

--
Nathan Sidwell

diff --git c/gcc/testsuite/g++.dg/modules/builtin-3_a.C w/gcc/testsuite/g++.dg/modules/builtin-3_a.C
index ad30ccf2a01..5f61fa4efab 100644
--- c/gcc/testsuite/g++.dg/modules/builtin-3_a.C
+++ w/gcc/testsuite/g++.dg/modules/builtin-3_a.C
@@ -30,8 +30,8 @@ export inline int count (int a, ...)
 // The implementation details of va_list's are target-specific.
 // Usually one of two patterns though
 // { dg-final { scan-lang-dump-not { Cluster members:\n  \[0\]=decl declaration '::__builtin_va_list'\n  \[1\]=binding '::__builtin_va_list'\n} module { target i?86-*-linux* x86_64-*-linux* } } }
-// { dg-final { scan-lang-dump {Wrote GMF:-[0-9]* type_decl:'::__builtin_va_list'@builtins} module { target x86_64-*-linux* } } }
-// { dg-final { scan-lang-dump {Writing:-[0-9]*'s named merge key \(decl\) type_decl:'::__builtin_va_list'} module { target x86_64-*-linux* } } }
+// { dg-final { scan-lang-dump {Wrote GMF:-[0-9]* type_decl:'::__builtin_va_list'@builtins} module { { target x86_64-*-linux* i>86-*-linux* } && lp64 } }
+// { dg-final { scan-lang-dump {Writing:-[0-9]*'s named merge key \(decl\) type_decl:'::__builtin_va_list'} module { target { x86_64-*-linux* i?86-*-linux* } && lp64 } } }
 
 // { dg-final { scan-lang-dump {Writing:-1's named merge key \(decl\) type_decl:'::__gnuc_va_list'} module { target i?86-*-linux* *-*-darwin* } } }
 // { dg-final { scan-lang-dump {Wrote GMF:-3 type_decl:'::__gnuc_va_list'@builtins} module { target i?86-*-linux* *-*-darwin* } } }
diff --git c/gcc/testsuite/g++.dg/modules/builtin-3_b.C w/gcc/testsuite/g++.dg/modules/builtin-3_b.C
index 93489bddba4..5c94890c9c4 100644
--- c/gcc/testsuite/g++.dg/modules/builtin-3_b.C
+++ w/gcc/testsuite/g++.dg/modules/builtin-3_b.C
@@ -8,6 +8,6 @@ int main ()
 }
 
 // { dg-final { scan-lang-dump {Read:-[0-9]*'s named merge key \(matched\) function_decl:'::__builtin_strlen'} module } }
-// { dg-final { scan-lang-dump {Read:-[0-9]*'s named merge key \(matched\) type_decl:'::__builtin_va_list'} module { target { x86_64-*-linux* } } } }
+// { dg-final { scan-lang-dump {Read:-[0-9]*'s named merge key \(matched\) type_decl:'::__builtin_va_list'} module { target { { x86_64-*-linux* i?86-*-linux* } && lp64 } } }
 // { dg-final { scan-lang-dump {Read:-[0-9]*'s named merge key \(new\) type_decl:'::va_list'} module } }
 // { dg-final { scan-lang-dump {Read:-[0-9]*'s named merge key \(new\) type_decl:'::__gnuc_va_list'} module } }