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//===- RTBuilder.cpp -- Runtime Interface unit tests ----------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "flang/Optimizer/Builder/Runtime/RTBuilder.h"
#include "gtest/gtest.h"
#include "flang/Optimizer/Support/InitFIR.h"
// Check that it is possible to make a difference between complex runtime
// function using C99 complex and C++ std::complex. This is important since
// they are layout compatible but not link time compatible (returned differently
// in X86 32 ABI for instance). At high level fir, we need to convey that the
// signature are different regardless of the target ABI.
// Fake runtime header to be introspected.
c_float_complex_t c99_cacosf(c_float_complex_t);
TEST(RTBuilderTest, ComplexRuntimeInterface) {
mlir::DialectRegistry registry;
fir::support::registerDialects(registry);
mlir::MLIRContext ctx(registry);
fir::support::loadDialects(ctx);
mlir::Type c99_cacosf_signature{
fir::runtime::RuntimeTableKey<decltype(c99_cacosf)>::getTypeModel()(
&ctx)};
auto c99_cacosf_funcTy = mlir::cast<mlir::FunctionType>(c99_cacosf_signature);
EXPECT_EQ(c99_cacosf_funcTy.getNumInputs(), 1u);
EXPECT_EQ(c99_cacosf_funcTy.getNumResults(), 1u);
auto cplx_ty = fir::ComplexType::get(&ctx, 4);
EXPECT_EQ(c99_cacosf_funcTy.getInput(0), cplx_ty);
EXPECT_EQ(c99_cacosf_funcTy.getResult(0), cplx_ty);
}
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