[llvm] [SPIRV] Add radians intrinsic (PR #110800)

[Adam Yang via llvm-commits]

================
@@ -2534,6 +2534,8 @@ bool SPIRVInstructionSelector::selectIntrinsic(Register ResVReg,
   }
   case Intrinsic::spv_step:
     return selectExtInst(ResVReg, ResType, I, CL::step, GL::Step);
+  case Intrinsic::spv_radians:
+    return selectExtInst(ResVReg, ResType, I, CL::radians, GL::Radians);
----------------
adam-yang wrote:

I separated the cl specific tests to [llvm/test/CodeGen/SPIRV/opencl/radians.ll](https://github.com/llvm/llvm-project/pull/110800/files#diff-475b96ef54c892f11b256ed84dc5169abcebe11ae128fac4bebb402fac7e0bbe)

https://github.com/llvm/llvm-project/pull/110800