| Chandler Carruth | c95ce87 | 2014-04-17 09:07:50 +0000 | [diff] [blame] | 1 | //===- llvm/unittest/IR/UserTest.cpp - User 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" |
| 18 | using namespace llvm; |
| 19 | |
| 20 | namespace { |
| 21 | |
| 22 | TEST(UserTest, ValueOpIteration) { |
| 23 | LLVMContext C; |
| 24 | |
| 25 | const char *ModuleString = "define void @f(i32 %x, i32 %y) {\n" |
| 26 | "entry:\n" |
| 27 | " switch i32 undef, label %s0\n" |
| 28 | " [ i32 1, label %s1\n" |
| 29 | " i32 2, label %s2\n" |
| 30 | " i32 3, label %s3\n" |
| 31 | " i32 4, label %s4\n" |
| 32 | " i32 5, label %s5\n" |
| 33 | " i32 6, label %s6\n" |
| 34 | " i32 7, label %s7\n" |
| 35 | " i32 8, label %s8\n" |
| 36 | " i32 9, label %s9 ]\n" |
| 37 | "\n" |
| 38 | "s0:\n" |
| 39 | " br label %exit\n" |
| 40 | "s1:\n" |
| 41 | " br label %exit\n" |
| 42 | "s2:\n" |
| 43 | " br label %exit\n" |
| 44 | "s3:\n" |
| 45 | " br label %exit\n" |
| 46 | "s4:\n" |
| 47 | " br label %exit\n" |
| 48 | "s5:\n" |
| 49 | " br label %exit\n" |
| 50 | "s6:\n" |
| 51 | " br label %exit\n" |
| 52 | "s7:\n" |
| 53 | " br label %exit\n" |
| 54 | "s8:\n" |
| 55 | " br label %exit\n" |
| 56 | "s9:\n" |
| 57 | " br label %exit\n" |
| 58 | "\n" |
| 59 | "exit:\n" |
| 60 | " %phi = phi i32 [ 0, %s0 ], [ 1, %s1 ],\n" |
| 61 | " [ 2, %s2 ], [ 3, %s3 ],\n" |
| 62 | " [ 4, %s4 ], [ 5, %s5 ],\n" |
| 63 | " [ 6, %s6 ], [ 7, %s7 ],\n" |
| 64 | " [ 8, %s8 ], [ 9, %s9 ]\n" |
| 65 | " ret void\n" |
| 66 | "}\n"; |
| 67 | SMDiagnostic Err; |
| Rafael Espindola | 9b29ff9 | 2014-08-19 16:58:54 +0000 | [diff] [blame] | 68 | std::unique_ptr<Module> M = parseAssemblyString(ModuleString, Err, C); |
| Chandler Carruth | c95ce87 | 2014-04-17 09:07:50 +0000 | [diff] [blame] | 69 | |
| 70 | Function *F = M->getFunction("f"); |
| 71 | BasicBlock &ExitBB = F->back(); |
| 72 | PHINode &P = cast<PHINode>(ExitBB.front()); |
| 73 | EXPECT_TRUE(P.value_op_begin() == P.value_op_begin()); |
| 74 | EXPECT_FALSE(P.value_op_begin() == P.value_op_end()); |
| 75 | EXPECT_TRUE(P.value_op_begin() != P.value_op_end()); |
| 76 | EXPECT_FALSE(P.value_op_end() != P.value_op_end()); |
| 77 | EXPECT_TRUE(P.value_op_begin() < P.value_op_end()); |
| 78 | EXPECT_FALSE(P.value_op_begin() < P.value_op_begin()); |
| 79 | EXPECT_TRUE(P.value_op_end() > P.value_op_begin()); |
| 80 | EXPECT_FALSE(P.value_op_begin() > P.value_op_begin()); |
| 81 | EXPECT_TRUE(P.value_op_begin() <= P.value_op_begin()); |
| 82 | EXPECT_FALSE(P.value_op_end() <= P.value_op_begin()); |
| 83 | EXPECT_TRUE(P.value_op_begin() >= P.value_op_begin()); |
| 84 | EXPECT_FALSE(P.value_op_begin() >= P.value_op_end()); |
| 85 | EXPECT_EQ(10, std::distance(P.value_op_begin(), P.value_op_end())); |
| 86 | |
| 87 | User::value_op_iterator I = P.value_op_begin(); |
| 88 | I += 3; |
| 89 | EXPECT_EQ(std::next(P.value_op_begin(), 3), I); |
| 90 | EXPECT_EQ(P.getOperand(3), *I); |
| 91 | I++; |
| 92 | EXPECT_EQ(P.getOperand(6), I[2]); |
| 93 | EXPECT_EQ(P.value_op_end(), (I - 2) + 8); |
| 94 | } |
| 95 | |
| 96 | } // end anonymous namespace |
