llvm/unittests/Target/TargetMachineOptionsTest.cpp

   1 //===-- llvm/unittests/Target/TargetMachineOptionsTest.cpp ----------
   2 //-----===//
   3 //
   4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   5 // See https://llvm.org/LICENSE.txt for license information.
   6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   7 //
   8 //===----------------------------------------------------------------------===//
   9 ///
  10 /// \file
  11 /// This file contains unit tests for the opaque structure describing options
  12 /// for TargetMachine creation via the C API.
  13 ///
  14 //===----------------------------------------------------------------------===//
  15
  16 #include "llvm-c/Core.h"
  17 #include "llvm-c/TargetMachine.h"
  18 #include "llvm/Config/llvm-config.h"
  19 #include "gtest/gtest.h"
  20
  21 namespace llvm {
  22
  23 TEST(TargetMachineCTest, TargetMachineOptions) {
  24   auto *Options = LLVMCreateTargetMachineOptions();
  25
  26   LLVMTargetMachineOptionsSetCPU(Options, "cortex-a53");
  27   LLVMTargetMachineOptionsSetFeatures(Options, "+neon");
  28   LLVMTargetMachineOptionsSetABI(Options, "aapcs");
  29   LLVMTargetMachineOptionsSetCodeGenOptLevel(Options, LLVMCodeGenLevelNone);
  30   LLVMTargetMachineOptionsSetRelocMode(Options, LLVMRelocStatic);
  31   LLVMTargetMachineOptionsSetCodeModel(Options, LLVMCodeModelKernel);
  32
  33   LLVMDisposeTargetMachineOptions(Options);
  34 }
  35
  36 TEST(TargetMachineCTest, TargetMachineCreation) {
  37   LLVMInitializeAllTargets();
  38   LLVMInitializeAllTargetInfos();
  39   LLVMInitializeAllTargetMCs();
  40
  41   // Get the default target to keep the test as generic as possible. This may
  42   // not be a target for which we can generate code; in that case we give up.
  43
  44   auto *Triple = LLVMGetDefaultTargetTriple();
  45   if (strlen(Triple) == 0) {
  46     LLVMDisposeMessage(Triple);
  47     GTEST_SKIP();
  48   }
  49
  50   LLVMTargetRef Target = nullptr;
  51   char *Error = nullptr;
  52   if (LLVMGetTargetFromTriple(Triple, &Target, &Error))
  53     FAIL() << "Failed to create target from default triple (" << Triple
  54            << "): " << Error;
  55
  56   ASSERT_NE(Target, nullptr);
  57
  58   if (!LLVMTargetHasTargetMachine(Target))
  59     GTEST_SKIP() << "Default target doesn't support code generation";
  60
  61   // We don't know which target we're creating a machine for, so don't set any
  62   // non-default options; they might cause fatal errors.
  63
  64   auto *Options = LLVMCreateTargetMachineOptions();
  65   auto *TM = LLVMCreateTargetMachineWithOptions(Target, Triple, Options);
  66   ASSERT_NE(TM, nullptr);
  67
  68   LLVMDisposeMessage(Triple);
  69   LLVMDisposeTargetMachineOptions(Options);
  70   LLVMDisposeTargetMachine(TM);
  71 }
  72
  73 } // namespace llvm