[BOLT] The -Werror build is broken after 97a32f2ad9ded95806db1dcfc281f64b0c1874a6

[kazutakahirata]

The -Werror build of BOLT is broken after:

commit 97a32f2ad9ded95806db1dcfc281f64b0c1874a6 (HEAD)
Author: Fangrui Song <i@maskray.me>
Date:   Sat Jun 7 11:33:40 2025 -0700

with:

bolt/lib/Core/MCPlusBuilder.cpp:88:11: error: enumeration value 'Specifier' not handled in switch [-Werror,-Wswitch]
   88 |   switch (A.getKind()) {
      |           ^~~~~~~~~~~
1 error generated.

and:

bolt/lib/Core/HashUtilities.cpp:54:11: error: enumeration value 'Specifier' not handled in switch [-Werror,-Wswitch]
   54 |   switch (Expr.getKind()) {
      |           ^~~~~~~~~~~~~~
1 error generated.

[llvmbot]

@llvm/issue-subscribers-bolt

Author: Kazu Hirata (kazutakahirata)

The `-Werror` build of BOLT is broken after:

commit 97a32f2ad9ded95806db1dcfc281f64b0c1874a6 (HEAD)
Author: Fangrui Song &lt;i@<!-- -->maskray.me&gt;
Date:   Sat Jun 7 11:33:40 2025 -0700

with:

bolt/lib/Core/MCPlusBuilder.cpp:88:11: error: enumeration value 'Specifier' not handled in switch [-Werror,-Wswitch]
   88 |   switch (A.getKind()) {
      |           ^~~~~~~~~~~
1 error generated.

and:

bolt/lib/Core/HashUtilities.cpp:54:11: error: enumeration value 'Specifier' not handled in switch [-Werror,-Wswitch]
   54 |   switch (Expr.getKind()) {
      |           ^~~~~~~~~~~~~~
1 error generated.

[kazutakahirata]

@MaskRay I'd appreciate ideas on how to proceed. Thanks!

[MaskRay]

Should have been fixed by cdd0a6c

Also related bolt/test/bolt-icf.test on an aarch64 host. Changed MCTargetExpr to MCSpecifierExpr