[clang] [llvm] [Driver][SYCL] Add initial SYCL offload compilation support (PR #107493)

[Tom Honermann via cfe-commits]

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+///
+/// Perform several driver tests for SYCL offloading for JIT
+///
+
+/// Check the phases graph with -fsycl. Use of -fsycl enables offload
+// RUN: %clang -ccc-print-phases --target=x86_64-unknown-linux-gnu \
+// RUN:   -fsycl %s 2>&1 \
+// RUN: | FileCheck -check-prefixes=CHK-PHASES %s
+// RUN: %clang -ccc-print-phases --target=x86_64-unknown-linux-gnu -fsycl \
+// RUN:   %s 2>&1 \
+// RUN: | FileCheck -check-prefixes=CHK-PHASES %s
+// RUN: %clang_cl -ccc-print-phases --target=x86_64-pc-windows-msvc -fsycl \
+// RUN:   %s 2>&1 \
+// RUN: | FileCheck -check-prefixes=CHK-PHASES %s
+// CHK-PHASES: 0: input, "[[INPUT:.+\.cpp]]", c++, (host-sycl)
+// CHK-PHASES: 1: preprocessor, {0}, c++-cpp-output, (host-sycl)
+// CHK-PHASES: 2: compiler, {1}, ir, (host-sycl)
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tahonermann wrote:

Hooray for host-side compilation happening first! :)

https://github.com/llvm/llvm-project/pull/107493