[clang] [llvm] [HLSL][DXIL] Implement `refract` intrinsic (PR #147342)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `arc-builder` running on `arc-worker` while building `clang,llvm` at step 6 "test-build-unified-tree-check-all".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/3/builds/19138

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 6 (test-build-unified-tree-check-all) failure: test (failure)
******************** TEST 'LLVM :: CodeGen/X86/sse2-intrinsics-fast-isel.ll' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
/buildbot/worker/arc-folder/build/bin/llc < /buildbot/worker/arc-folder/llvm-project/llvm/test/CodeGen/X86/sse2-intrinsics-fast-isel.ll -show-mc-encoding -fast-isel -mtriple=i386-unknown-unknown -mattr=+sse2 | /buildbot/worker/arc-folder/build/bin/FileCheck /buildbot/worker/arc-folder/llvm-project/llvm/test/CodeGen/X86/sse2-intrinsics-fast-isel.ll --check-prefixes=CHECK,X86,SSE,X86-SSE # RUN: at line 2
+ /buildbot/worker/arc-folder/build/bin/FileCheck /buildbot/worker/arc-folder/llvm-project/llvm/test/CodeGen/X86/sse2-intrinsics-fast-isel.ll --check-prefixes=CHECK,X86,SSE,X86-SSE
+ /buildbot/worker/arc-folder/build/bin/llc -show-mc-encoding -fast-isel -mtriple=i386-unknown-unknown -mattr=+sse2
LLVM ERROR: Cannot select: intrinsic %llvm.x86.sse2.clflush
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace.
Stack dump:
0.	Program arguments: /buildbot/worker/arc-folder/build/bin/llc -show-mc-encoding -fast-isel -mtriple=i386-unknown-unknown -mattr=+sse2
1.	Running pass 'Function Pass Manager' on module '<stdin>'.
2.	Running pass 'X86 DAG->DAG Instruction Selection' on function '@test_mm_clflush'
 #0 0x00000000023228c8 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/buildbot/worker/arc-folder/build/bin/llc+0x23228c8)
 #1 0x000000000231f7d5 SignalHandler(int, siginfo_t*, void*) Signals.cpp:0:0
 #2 0x00007f8cf3f3b630 __restore_rt sigaction.c:0:0
 #3 0x00007f8cf2c8b3d7 raise (/usr/lib64/libc.so.6+0x363d7)
 #4 0x00007f8cf2c8cac8 abort (/usr/lib64/libc.so.6+0x37ac8)
 #5 0x000000000071ae9b llvm::json::operator==(llvm::json::Value const&, llvm::json::Value const&) (.cold) JSON.cpp:0:0
 #6 0x00000000020b2739 llvm::SelectionDAGISel::CannotYetSelect(llvm::SDNode*) (/buildbot/worker/arc-folder/build/bin/llc+0x20b2739)
 #7 0x00000000020b730a llvm::SelectionDAGISel::SelectCodeCommon(llvm::SDNode*, unsigned char const*, unsigned int) (/buildbot/worker/arc-folder/build/bin/llc+0x20b730a)
 #8 0x00000000009590a7 (anonymous namespace)::X86DAGToDAGISel::Select(llvm::SDNode*) X86ISelDAGToDAG.cpp:0:0
 #9 0x00000000020adfff llvm::SelectionDAGISel::DoInstructionSelection() (/buildbot/worker/arc-folder/build/bin/llc+0x20adfff)
#10 0x00000000020bddf8 llvm::SelectionDAGISel::CodeGenAndEmitDAG() (/buildbot/worker/arc-folder/build/bin/llc+0x20bddf8)
#11 0x00000000020c1a6a llvm::SelectionDAGISel::SelectAllBasicBlocks(llvm::Function const&) (/buildbot/worker/arc-folder/build/bin/llc+0x20c1a6a)
#12 0x00000000020c26c5 llvm::SelectionDAGISel::runOnMachineFunction(llvm::MachineFunction&) (/buildbot/worker/arc-folder/build/bin/llc+0x20c26c5)
#13 0x00000000020ad81f llvm::SelectionDAGISelLegacy::runOnMachineFunction(llvm::MachineFunction&) (/buildbot/worker/arc-folder/build/bin/llc+0x20ad81f)
#14 0x00000000012016b7 llvm::MachineFunctionPass::runOnFunction(llvm::Function&) (.part.0) MachineFunctionPass.cpp:0:0
#15 0x000000000185e852 llvm::FPPassManager::runOnFunction(llvm::Function&) (/buildbot/worker/arc-folder/build/bin/llc+0x185e852)
#16 0x000000000185ebf1 llvm::FPPassManager::runOnModule(llvm::Module&) (/buildbot/worker/arc-folder/build/bin/llc+0x185ebf1)
#17 0x000000000185f807 llvm::legacy::PassManagerImpl::run(llvm::Module&) (/buildbot/worker/arc-folder/build/bin/llc+0x185f807)
#18 0x00000000007f7d82 compileModule(char**, llvm::LLVMContext&) llc.cpp:0:0
#19 0x0000000000723396 main (/buildbot/worker/arc-folder/build/bin/llc+0x723396)
#20 0x00007f8cf2c77555 __libc_start_main (/usr/lib64/libc.so.6+0x22555)
#21 0x00000000007edfc6 _start (/buildbot/worker/arc-folder/build/bin/llc+0x7edfc6)
/buildbot/worker/arc-folder/llvm-project/llvm/test/CodeGen/X86/sse2-intrinsics-fast-isel.ll:399:14: error: SSE-LABEL: expected string not found in input
; SSE-LABEL: test_mm_bsrli_si128:
             ^
<stdin>:170:21: note: scanning from here
test_mm_bslli_si128: # @test_mm_bslli_si128
                    ^
<stdin>:178:9: note: possible intended match here
 .globl test_mm_bsrli_si128 # 
        ^

Input file: <stdin>
Check file: /buildbot/worker/arc-folder/llvm-project/llvm/test/CodeGen/X86/sse2-intrinsics-fast-isel.ll

-dump-input=help explains the following input dump.
...

```

</details>

https://github.com/llvm/llvm-project/pull/147342