[Clang] Add elementwise maximumnum/minimumnum builtin functions (#149775)

Addresses https://github.com/llvm/llvm-project/issues/112164. minimumnum
and maximumnum intrinsics were added in 5bf81e53dbea.

The new built-ins can be used for implementing OpenCL math function fmax
and fmin in #128506.

2 files changed, 18 insertions, 0 deletions

diff --git a/clang/lib/CodeGen/CGBuiltin.cpp b/clang/lib/CodeGen/CGBuiltin.cpp
index 5f2eb76..3f784fc 100644
--- a/clang/lib/CodeGen/CGBuiltin.cpp
+++ b/clang/lib/CodeGen/CGBuiltin.cpp
@@ -4108,6 +4108,22 @@ RValue CodeGenFunction::EmitBuiltinExpr(const GlobalDecl GD, unsigned BuiltinID,
     return RValue::get(Result);
   }
 
+  case Builtin::BI__builtin_elementwise_maximumnum: {
+    Value *Op0 = EmitScalarExpr(E->getArg(0));
+    Value *Op1 = EmitScalarExpr(E->getArg(1));
+    Value *Result = Builder.CreateBinaryIntrinsic(
+        Intrinsic::maximumnum, Op0, Op1, nullptr, "elt.maximumnum");
+    return RValue::get(Result);
+  }
+
+  case Builtin::BI__builtin_elementwise_minimumnum: {
+    Value *Op0 = EmitScalarExpr(E->getArg(0));
+    Value *Op1 = EmitScalarExpr(E->getArg(1));
+    Value *Result = Builder.CreateBinaryIntrinsic(
+        Intrinsic::minimumnum, Op0, Op1, nullptr, "elt.minimumnum");
+    return RValue::get(Result);
+  }
+
   case Builtin::BI__builtin_reduce_max: {
     auto GetIntrinsicID = [this](QualType QT) {
       if (auto *VecTy = QT->getAs<VectorType>())
diff --git a/clang/lib/Sema/SemaChecking.cpp b/clang/lib/Sema/SemaChecking.cpp
index 5e523fe..c74b671 100644
--- a/clang/lib/Sema/SemaChecking.cpp
+++ b/clang/lib/Sema/SemaChecking.cpp
@@ -3013,6 +3013,8 @@ Sema::CheckBuiltinFunctionCall(FunctionDecl *FDecl, unsigned BuiltinID,
   case Builtin::BI__builtin_elementwise_maxnum:
   case Builtin::BI__builtin_elementwise_minimum:
   case Builtin::BI__builtin_elementwise_maximum:
+  case Builtin::BI__builtin_elementwise_minimumnum:
+  case Builtin::BI__builtin_elementwise_maximumnum:
   case Builtin::BI__builtin_elementwise_atan2:
   case Builtin::BI__builtin_elementwise_fmod:
   case Builtin::BI__builtin_elementwise_pow: