mirror-llvm-project/llvm/unittests/Target/RISCV/RISCVBaseInfoTest.cpp
Alexander Richardson b94b699857
[RISCV] Fix ISCVISAInfo::computeDefaultABI() result for xcheriot (#212129)
XCheriot was not considered in this function, so RV32E+XCheriot
defaulted
to ilp32e instead of cheriot when no -target-abi was given.

Since this function does not have unit test coverage, this adds new
tests
for the ABI inference functions: RISCVISAInfo::computeDefaultABI() and
RISCVABI::computeTargetABI.

This change was created with the help of AI tools
2026-08-01 05:45:19 +00:00

50 lines
1.9 KiB
C++

//===- RISCVBaseInfoTest.cpp ----------------------------------------------===//
//
// 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 "MCTargetDesc/RISCVBaseInfo.h"
#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/MC/TargetRegistry.h"
#include "llvm/Support/TargetSelect.h"
#include "llvm/TargetParser/Triple.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
std::unique_ptr<MCSubtargetInfo> createSTI(StringRef TripleName,
StringRef FeatureStr) {
LLVMInitializeRISCVTargetInfo();
LLVMInitializeRISCVTarget();
LLVMInitializeRISCVTargetMC();
std::string Error;
Triple TT(TripleName);
const Target *TheTarget = TargetRegistry::lookupTarget(TT, Error);
return std::unique_ptr<MCSubtargetInfo>(
TheTarget->createMCSubtargetInfo(TT, /*CPU=*/"", FeatureStr));
}
RISCVABI::ABI computeTargetABI(StringRef TripleName, StringRef FeatureStr,
StringRef ABIName = "") {
auto STI = createSTI(TripleName, FeatureStr);
return RISCVABI::computeTargetABI(*STI, ABIName);
}
TEST(ComputeTargetABI, SelectsExpectedABI) {
EXPECT_EQ(computeTargetABI("riscv32", ""), RISCVABI::ABI_ILP32);
EXPECT_EQ(computeTargetABI("riscv32", "+f"), RISCVABI::ABI_ILP32F);
EXPECT_EQ(computeTargetABI("riscv32", "+f,+d"), RISCVABI::ABI_ILP32D);
EXPECT_EQ(computeTargetABI("riscv64", ""), RISCVABI::ABI_LP64);
EXPECT_EQ(computeTargetABI("riscv64", "+f"), RISCVABI::ABI_LP64F);
EXPECT_EQ(computeTargetABI("riscv64", "+f,+d"), RISCVABI::ABI_LP64D);
// CHERIoT always selects the cheriot ABI by default.
EXPECT_EQ(computeTargetABI("riscv32", "+xcheriot"), RISCVABI::ABI_CHERIOT);
}
} // namespace