================
@@ -0,0 +1,73 @@
+/// Tests SPIR-V device target adaptation of SizeType, PtrDiffType, and
+/// IntPtrType from the host target via -aux-triple.
+
+// RUN: %clang_cc1 -triple spirv64-unknown-unknown -aux-triple 
x86_64-unknown-linux-gnu \
+// RUN:   -fsycl-is-device -E -dM %s | FileCheck --check-prefix=LINUX64 %s
+// RUN: %clang_cc1 -triple spirv64-unknown-unknown -aux-triple 
x86_64-pc-windows-msvc \
+// RUN:   -fsycl-is-device -E -dM %s | FileCheck --check-prefix=WIN64 %s
+// RUN: %clang_cc1 -triple spirv32-unknown-unknown -aux-triple 
i386-unknown-linux-gnu \
+// RUN:   -fsycl-is-device -E -dM %s | FileCheck --check-prefix=LINUX32 %s
+// RUN: %clang_cc1 -triple spirv64-unknown-unknown \
+// RUN:   -fsycl-is-device -E -dM %s | FileCheck --check-prefix=NOHOST64 %s
+// RUN: %clang_cc1 -triple spirv32-unknown-unknown \
+// RUN:   -fsycl-is-device -E -dM %s | FileCheck --check-prefix=NOHOST32 %s
+
+// Linux x86_64 host (LP64)
+// LINUX64-DAG: #define __SIZE_TYPE__ long unsigned int
+// LINUX64-DAG: #define __PTRDIFF_TYPE__ long int
+// LINUX64-DAG: #define __INTPTR_TYPE__ long int
+// LINUX64-DAG: #define __SIZEOF_SIZE_T__ 8
+// LINUX64-DAG: #define __SIZEOF_PTRDIFF_T__ 8
+// LINUX64-DAG: #define __SIZEOF_LONG__ 8
+// LINUX64-DAG: #define __SIZEOF_POINTER__ 8
+
+// Windows x86_64 host (LLP64)
+// WIN64-DAG: #define __SIZE_TYPE__ long long unsigned int
+// WIN64-DAG: #define __PTRDIFF_TYPE__ long long int
+// WIN64-DAG: #define __INTPTR_TYPE__ long long int
+// WIN64-DAG: #define __SIZEOF_SIZE_T__ 8
+// WIN64-DAG: #define __SIZEOF_PTRDIFF_T__ 8
+// WIN64-DAG: #define __SIZEOF_LONG__ 4
+// WIN64-DAG: #define __SIZEOF_POINTER__ 8
+
+// Linux i386 host (ILP32)
+// LINUX32-DAG: #define __SIZE_TYPE__ unsigned int
+// LINUX32-DAG: #define __PTRDIFF_TYPE__ int
+// LINUX32-DAG: #define __INTPTR_TYPE__ int
+// LINUX32-DAG: #define __SIZEOF_SIZE_T__ 4
+// LINUX32-DAG: #define __SIZEOF_PTRDIFF_T__ 4
+// LINUX32-DAG: #define __SIZEOF_POINTER__ 4
+
+// No host (SPIRV64 defaults)
+// NOHOST64-DAG: #define __SIZE_TYPE__ long unsigned int
+// NOHOST64-DAG: #define __PTRDIFF_TYPE__ long int
+// NOHOST64-DAG: #define __INTPTR_TYPE__ long int
+// NOHOST64-DAG: #define __SIZEOF_SIZE_T__ 8
+// NOHOST64-DAG: #define __SIZEOF_PTRDIFF_T__ 8
+// NOHOST64-DAG: #define __SIZEOF_POINTER__ 8
+
+// No host (SPIRV32 defaults)
+// NOHOST32-DAG: #define __SIZE_TYPE__ unsigned int
+// NOHOST32-DAG: #define __PTRDIFF_TYPE__ int
+// NOHOST32-DAG: #define __INTPTR_TYPE__ int
+// NOHOST32-DAG: #define __SIZEOF_SIZE_T__ 4
+// NOHOST32-DAG: #define __SIZEOF_PTRDIFF_T__ 4
+// NOHOST32-DAG: #define __SIZEOF_POINTER__ 4
+
+// Aux-target OS and arch macros
+// WIN64-DAG: #define _WIN32 1
+// WIN64-DAG: #define _WIN64 1
+// WIN64-DAG: #define _M_X64 100
+// WIN64-DAG: #define _M_AMD64 100
+// LINUX64-DAG: #define __linux__ 1
+// LINUX64-DAG: #define __x86_64__ 1
+
+// SPIRV device macros always present
+// LINUX64-DAG: #define __SPIRV__ 1
+// LINUX64-DAG: #define __SPIRV64__ 1
+// WIN64-DAG: #define __SPIRV__ 1
+// WIN64-DAG: #define __SPIRV64__ 1
+// NOHOST64-DAG: #define __SPIRV__ 1
+// NOHOST64-DAG: #define __SPIRV64__ 1
+// NOHOST32-DAG: #define __SPIRV__ 1
+// NOHOST32-DAG: #define __SPIRV32__ 1
----------------
tahonermann wrote:

If `spir-target-host-adaptation.cpp` is renamed as suggested, this test should 
be renamed to match.

https://github.com/llvm/llvm-project/pull/208196
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