Duncan P. N. Exon Smith | 1698de2 | 2014-07-24 00:53:19 +0000 | [diff] [blame] | 1 | //===- llvm/unittest/IR/UseTest.cpp - Use unit tests ----------------------===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
| 10 | #include "llvm/AsmParser/Parser.h" |
| 11 | #include "llvm/IR/Function.h" |
| 12 | #include "llvm/IR/LLVMContext.h" |
| 13 | #include "llvm/IR/Module.h" |
| 14 | #include "llvm/IR/User.h" |
| 15 | #include "llvm/IR/Instructions.h" |
| 16 | #include "llvm/Support/SourceMgr.h" |
| 17 | #include "gtest/gtest.h" |
Duncan P. N. Exon Smith | 857fd66 | 2014-07-24 15:16:23 +0000 | [diff] [blame^] | 18 | #include <string> |
| 19 | |
Duncan P. N. Exon Smith | 1698de2 | 2014-07-24 00:53:19 +0000 | [diff] [blame] | 20 | using namespace llvm; |
| 21 | |
| 22 | namespace { |
| 23 | |
| 24 | TEST(UseTest, sort) { |
| 25 | LLVMContext C; |
| 26 | |
| 27 | const char *ModuleString = "define void @f(i32 %x) {\n" |
| 28 | "entry:\n" |
| 29 | " %v0 = add i32 %x, 0\n" |
| 30 | " %v2 = add i32 %x, 2\n" |
| 31 | " %v5 = add i32 %x, 5\n" |
| 32 | " %v1 = add i32 %x, 1\n" |
| 33 | " %v3 = add i32 %x, 3\n" |
| 34 | " %v7 = add i32 %x, 7\n" |
| 35 | " %v6 = add i32 %x, 6\n" |
| 36 | " %v4 = add i32 %x, 4\n" |
| 37 | " ret void\n" |
| 38 | "}\n"; |
| 39 | SMDiagnostic Err; |
| 40 | Module *M = ParseAssemblyString(ModuleString, nullptr, Err, C); |
| 41 | Function *F = M->getFunction("f"); |
| 42 | ASSERT_TRUE(F); |
| 43 | ASSERT_TRUE(F->arg_begin() != F->arg_end()); |
| 44 | Argument &X = *F->arg_begin(); |
| 45 | ASSERT_EQ("x", X.getName()); |
| 46 | |
| 47 | X.sortUseList([](const Use &L, const Use &R) { |
| 48 | return L.getUser()->getName() < R.getUser()->getName(); |
| 49 | }); |
| 50 | unsigned I = 0; |
| 51 | for (User *U : X.users()) |
| 52 | EXPECT_EQ("v" + std::to_string(I++), U->getName()); |
| 53 | ASSERT_EQ(8u, I); |
| 54 | |
| 55 | X.sortUseList([](const Use &L, const Use &R) { |
| 56 | return L.getUser()->getName() > R.getUser()->getName(); |
| 57 | }); |
| 58 | I = 0; |
| 59 | for (User *U : X.users()) |
| 60 | EXPECT_EQ("v" + std::to_string((7 - I++)), U->getName()); |
| 61 | ASSERT_EQ(8u, I); |
| 62 | } |
| 63 | |
| 64 | } // end anonymous namespace |