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Diffstat (limited to 'unittests/IR/UseTest.cpp')
-rw-r--r-- | unittests/IR/UseTest.cpp | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/unittests/IR/UseTest.cpp b/unittests/IR/UseTest.cpp new file mode 100644 index 0000000..3f33ca6 --- /dev/null +++ b/unittests/IR/UseTest.cpp @@ -0,0 +1,112 @@ +//===- llvm/unittest/IR/UseTest.cpp - Use unit tests ----------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "llvm/AsmParser/Parser.h" +#include "llvm/IR/Function.h" +#include "llvm/IR/LLVMContext.h" +#include "llvm/IR/Module.h" +#include "llvm/IR/User.h" +#include "llvm/IR/Instructions.h" +#include "llvm/Support/Format.h" +#include "llvm/Support/SourceMgr.h" +#include "gtest/gtest.h" + +using namespace llvm; + +namespace { + +TEST(UseTest, sort) { + LLVMContext C; + + const char *ModuleString = "define void @f(i32 %x) {\n" + "entry:\n" + " %v0 = add i32 %x, 0\n" + " %v2 = add i32 %x, 2\n" + " %v5 = add i32 %x, 5\n" + " %v1 = add i32 %x, 1\n" + " %v3 = add i32 %x, 3\n" + " %v7 = add i32 %x, 7\n" + " %v6 = add i32 %x, 6\n" + " %v4 = add i32 %x, 4\n" + " ret void\n" + "}\n"; + SMDiagnostic Err; + char vnbuf[8]; + std::unique_ptr<Module> M = parseAssemblyString(ModuleString, Err, C); + Function *F = M->getFunction("f"); + ASSERT_TRUE(F); + ASSERT_TRUE(F->arg_begin() != F->arg_end()); + Argument &X = *F->arg_begin(); + ASSERT_EQ("x", X.getName()); + + X.sortUseList([](const Use &L, const Use &R) { + return L.getUser()->getName() < R.getUser()->getName(); + }); + unsigned I = 0; + for (User *U : X.users()) { + snprintf(vnbuf, sizeof(vnbuf), "v%u", I++); + EXPECT_EQ(vnbuf, U->getName()); + } + ASSERT_EQ(8u, I); + + X.sortUseList([](const Use &L, const Use &R) { + return L.getUser()->getName() > R.getUser()->getName(); + }); + I = 0; + for (User *U : X.users()) { + snprintf(vnbuf, sizeof(vnbuf), "v%u", (7 - I++)); + EXPECT_EQ(vnbuf, U->getName()); + } + ASSERT_EQ(8u, I); +} + +TEST(UseTest, reverse) { + LLVMContext C; + + const char *ModuleString = "define void @f(i32 %x) {\n" + "entry:\n" + " %v0 = add i32 %x, 0\n" + " %v2 = add i32 %x, 2\n" + " %v5 = add i32 %x, 5\n" + " %v1 = add i32 %x, 1\n" + " %v3 = add i32 %x, 3\n" + " %v7 = add i32 %x, 7\n" + " %v6 = add i32 %x, 6\n" + " %v4 = add i32 %x, 4\n" + " ret void\n" + "}\n"; + SMDiagnostic Err; + char vnbuf[8]; + std::unique_ptr<Module> M = parseAssemblyString(ModuleString, Err, C); + Function *F = M->getFunction("f"); + ASSERT_TRUE(F); + ASSERT_TRUE(F->arg_begin() != F->arg_end()); + Argument &X = *F->arg_begin(); + ASSERT_EQ("x", X.getName()); + + X.sortUseList([](const Use &L, const Use &R) { + return L.getUser()->getName() < R.getUser()->getName(); + }); + unsigned I = 0; + for (User *U : X.users()) { + snprintf(vnbuf, sizeof(vnbuf), "v%u", I++); + EXPECT_EQ(vnbuf, U->getName()); + } + ASSERT_EQ(8u, I); + + X.reverseUseList(); + I = 0; + for (User *U : X.users()) { + snprintf(vnbuf, sizeof(vnbuf), "v%u", (7 - I++)); + EXPECT_EQ(vnbuf, U->getName()); + } + ASSERT_EQ(8u, I); +} + +} // end anonymous namespace |