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84c463c970
Summary: The `llc` tool currently defaults to Static relocation model and generates non-relocatable code for 32-bit Power. This is not desirable on AIX where we always generate Position Independent Code (PIC). This patch makes PIC the default relocation model for AIX. Reviewers: daltenty, hubert.reinterpretcast, DiggerLin, Xiangling_L, sfertile Reviewed By: hubert.reinterpretcast Subscribers: mgorny, wuzish, nemanjai, hiraditya, kbarton, jsji, shchenz, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D72479
40 lines
1.2 KiB
C++
40 lines
1.2 KiB
C++
#include "llvm/ADT/Triple.h"
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#include "llvm/Support/TargetRegistry.h"
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#include "llvm/Support/TargetSelect.h"
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#include "llvm/Target/TargetMachine.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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namespace {
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class AIXRelocModelTest : public ::testing::Test {
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protected:
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static void SetUpTestCase() {
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LLVMInitializePowerPCTargetInfo();
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LLVMInitializePowerPCTarget();
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LLVMInitializePowerPCTargetMC();
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}
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};
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TEST_F(AIXRelocModelTest, DefalutToPIC) {
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Triple TheTriple(/*ArchStr*/ "powerpc", /*VendorStr*/ "", /*OSStr*/ "aix");
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std::string Error;
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const Target *TheTarget = TargetRegistry::lookupTarget("", TheTriple, Error);
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ASSERT_TRUE(TheTarget) << Error;
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TargetOptions Options;
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// Create a TargetMachine for powerpc--aix target, and deliberately leave its
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// relocation model unset.
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std::unique_ptr<TargetMachine> Target(TheTarget->createTargetMachine(
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/*TT*/ TheTriple.getTriple(), /*CPU*/ "", /*Features*/ "",
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/*Options*/ Options, /*RM*/ None, /*CM*/ None,
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/*OL*/ CodeGenOpt::Default));
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ASSERT_TRUE(Target) << "Could not allocate target machine!";
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// The relocation model on AIX should be forced to PIC regardless.
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EXPECT_TRUE(Target->getRelocationModel() == Reloc::PIC_);
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}
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} // end of anonymous namespace
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