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71c1b22855
Also add a unit test. PR15727. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179370 91177308-0d34-0410-b5e6-96231b3b80d8
47 lines
1.6 KiB
C++
47 lines
1.6 KiB
C++
//===- llvm/unittest/IR/ValueTest.cpp - Value unit tests ------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Assembly/Parser.h"
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#include "llvm/IR/Function.h"
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#include "llvm/IR/LLVMContext.h"
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#include "llvm/IR/Module.h"
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#include "llvm/IR/Value.h"
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#include "llvm/Support/SourceMgr.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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TEST(ValueTest, UsedInBasicBlock) {
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LLVMContext C;
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const char *ModuleString = "define void @f(i32 %x, i32 %y) {\n"
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"bb0:\n"
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" %y1 = add i32 %y, 1\n"
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" %y2 = add i32 %y, 1\n"
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" %y3 = add i32 %y, 1\n"
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" %y4 = add i32 %y, 1\n"
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" %y5 = add i32 %y, 1\n"
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" %y6 = add i32 %y, 1\n"
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" %y7 = add i32 %y, 1\n"
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" %y8 = add i32 %x, 1\n"
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" ret void\n"
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"}\n";
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SMDiagnostic Err;
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Module *M = ParseAssemblyString(ModuleString, NULL, Err, C);
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Function *F = M->getFunction("f");
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EXPECT_FALSE(F->isUsedInBasicBlock(F->begin()));
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EXPECT_TRUE((++F->arg_begin())->isUsedInBasicBlock(F->begin()));
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EXPECT_TRUE(F->arg_begin()->isUsedInBasicBlock(F->begin()));
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}
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} // end anonymous namespace
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