[clang] [llvm] [mlir] [Clang][CodeGen] Start migrating away from assuming the Default AS is 0 (PR #88182)

[Alexander Richardson via cfe-commits]

================
@@ -1,14 +1,17 @@
 // RUN: %clang_cc1 %s -triple=amdgcn-amd-amdhsa -std=c++11 -emit-llvm -o %t.ll -O1 -disable-llvm-passes -fms-extensions -fstrict-vtable-pointers
+// RUN: %clang_cc1 %s -triple i686-pc-win32 -emit-llvm -o %t.ms.ll -O1 -disable-llvm-passes -fms-extensions -fstrict-vtable-pointers
+// RUN: %clang_cc1 %s -triple=spirv64-unknown-unknown -fsycl-is-device -std=c++11 -emit-llvm -o %t.ll -O1 -disable-llvm-passes -fms-extensions -fstrict-vtable-pointers
 // FIXME: Assume load should not require -fstrict-vtable-pointers
 
 // RUN: FileCheck --check-prefix=CHECK1 --input-file=%t.ll %s
 // RUN: FileCheck --check-prefix=CHECK2 --input-file=%t.ll %s
 // RUN: FileCheck --check-prefix=CHECK3 --input-file=%t.ll %s
 // RUN: FileCheck --check-prefix=CHECK4 --input-file=%t.ll %s
-// RUN: FileCheck --check-prefix=CHECK5 --input-file=%t.ll %s
+// RUN: FileCheck --check-prefix=CHECK-MS --input-file=%t.ms.ll %s
 // RUN: FileCheck --check-prefix=CHECK6 --input-file=%t.ll %s
 // RUN: FileCheck --check-prefix=CHECK7 --input-file=%t.ll %s
 // RUN: FileCheck --check-prefix=CHECK8 --input-file=%t.ll %s
+// RUN: FileCheck --check-prefix=CHECK9 --input-file=%t.ll %s
----------------
arichardson wrote:

Maybe it would be easier to autogenerate these check lines and just have the RUN: lines be:

```
// RUN: %clang_cc1 %s -triple=amdgcn-amd-amdhsa -std=c++11 -emit-llvm -o - -O1 -disable-llvm-passes -fms-extensions -fstrict-vtable-pointers | FileCheck %s --check-prefix=CHECK-AMDGCN
// RUN: %clang_cc1 %s -triple i686-pc-win32 -emit-llvm -o - -O1 -disable-llvm-passes -fms-extensions -fstrict-vtable-pointers | FileCheck %s --check-prefix=CHECK-MS
// RUN: %clang_cc1 %s -triple=spirv64-unknown-unknown -fsycl-is-device -std=c++11 -emit-llvm -o %t.ll -O1 -disable-llvm-passes -fms-extensions -fstrict-vtable-pointers | FileCheck %s --check-prefix=CHECK-SPIRV
```

https://github.com/llvm/llvm-project/pull/88182