AMDGPU: Add builtin for fmed3 intrinsic

llvm-svn: 293600

clang/include/clang/Basic/BuiltinsAMDGPU.def

@@ -81,6 +81,7 @@ BUILTIN(__builtin_amdgcn_sicmpl, "LUiLiLiIi", "nc")
 BUILTIN(__builtin_amdgcn_fcmp, "LUiddIi", "nc")
 BUILTIN(__builtin_amdgcn_fcmpf, "LUiffIi", "nc")
 BUILTIN(__builtin_amdgcn_ds_swizzle, "iiIi", "nc")
+BUILTIN(__builtin_amdgcn_fmed3f, "ffff", "nc")
 
 //===----------------------------------------------------------------------===//
 // VI+ only builtins.

clang/lib/CodeGen/CGBuiltin.cpp

@@ -8397,7 +8397,8 @@ Value *CodeGenFunction::EmitAMDGPUBuiltinExpr(unsigned BuiltinID,
   case AMDGPU::BI__builtin_amdgcn_classf:
   case AMDGPU::BI__builtin_amdgcn_classh:
     return emitFPIntBuiltin(*this, E, Intrinsic::amdgcn_class);
-
+  case AMDGPU::BI__builtin_amdgcn_fmed3f:
+    return emitTernaryBuiltin(*this, E, Intrinsic::amdgcn_fmed3);
   case AMDGPU::BI__builtin_amdgcn_read_exec: {
     CallInst *CI = cast<CallInst>(
       EmitSpecialRegisterBuiltin(*this, E, Int64Ty, Int64Ty, true, "exec"));

clang/test/CodeGenOpenCL/builtins-amdgcn.cl

@@ -396,6 +396,13 @@ void test_get_local_id(int d, global int *out)
 	}
 }
 
+// CHECK-LABEL: @test_fmed3_f32
+// CHECK: call float @llvm.amdgcn.fmed3.f32(
+void test_fmed3_f32(global float* out, float a, float b, float c)
+{
+  *out = __builtin_amdgcn_fmed3f(a, b, c);
+}
+
 // CHECK-DAG: [[WI_RANGE]] = !{i32 0, i32 1024}
 // CHECK-DAG: attributes #[[NOUNWIND_READONLY:[0-9]+]] = { nounwind readonly }
 // CHECK-DAG: attributes #[[READ_EXEC_ATTRS]] = { convergent }