[SYCL] Fix missing Unix tools on Windows

[alexbatashev]

Use echo instead of true and check for other tools availability

[bader]

Why these tests use Linux tool in the first place? Can't we write tests using just LLVM tools?

[steffenlarsen]

I ran the tests on Windows and most tests now pass. The failing tests fall into two errors, which I suspect are related:

• Regression/pi_release.cpp
• InorderQueue/in_order_property_trace.cpp
• Basic/event_release.cpp
• Scheduler/InOrderQueueDeps.cpp
• Basic/use_pinned_host_memory.cpp
• Basic/queue/release.cpp
• Scheduler/ReleaseResourcesTest.cpp
• Tracing/pi_tracing_test.cpp
• Scheduler/MemObjRemapping.cpp
• Basic/info_ocl_version.cpp
• Tracing/buffer_printers.cpp

Fail with:

...
$ "env" "SYCL_PI_TRACE=-1" "echo" "C:\Path\to\tests\Output\test_name.cpp.tmp.out"
# command stderr:
Error: 'env' cannot call 'echo'
error: command failed with exit status: 127

• Basic/buffer/native_buffer_creation_flags.cpp

Fail with:

...
$ ":" "RUN: at line 2"
$ "echo" "SYCL_PI_TRACE=-1" "C:\Path\to\tests\Output\test_name.cpp.tmp.out"
# command stderr:
stdin and stderr redirects not supported for echo
error: command failed with exit status: 127

[vladimirlaz]

@alexbatashev have you tried to use LIT shell? It can be set using line like:

./llvm-spirv/test/lit.cfg.py:config.test_format = lit.formats.ShTest(not llvm_config.use_lit_shell)

[bader]

@alexbatashev, please, resolve merge conflicts.

[kbobrovs]

SpecConstants/1.2.1 LGTM

[bader]

@alexbatashev, please, resolve merge conflicts.

@alexbatashev, ping.

[alexbatashev]

Decided to split in parts to make it more manageable
Part 1: #475