[llvm] [IR] Add `llvm.sincos` intrinsic (PR #109825)

[Thorsten Schütt via llvm-commits]

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@@ -2340,6 +2340,13 @@ bool IRTranslator::translateKnownIntrinsic(const CallInst &CI, Intrinsic::ID ID,
                            MachineInstr::copyFlagsFromInstruction(CI));
     return true;
   }
+  case Intrinsic::sincos: {
+    ArrayRef<Register> VRegs = getOrCreateVRegs(CI);
+    MIRBuilder.buildFSincos(VRegs[0], VRegs[1],
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tschuett wrote:

This is more complicated than needed, see  case Intrinsic::fptosi_sat: below.

https://github.com/llvm/llvm-project/pull/109825