Replacing a range-based for loop with an old-style for loop. This code was previously...
[oota-llvm.git] / unittests / Support / TargetRegistry.cpp
1 //===- unittests/Support/TargetRegistry.cpp - -----------------------------===//
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/Support/TargetRegistry.h"
11 #include "llvm/Support/TargetSelect.h"
12 #include "gtest/gtest.h"
13
14 using namespace llvm;
15
16 namespace {
17
18 TEST(TargetRegistry, TargetHasArchType) {
19   // Presence of at least one target will be asserted when done with the loop,
20   // else this would pass by accident if InitializeAllTargetInfos were omitted.
21   int Count = 0;
22
23   llvm::InitializeAllTargetInfos();
24
25   llvm::TargetRegistry RegistryRoot;
26   for (auto &I = TargetRegistry::begin(), &E = TargetRegistry::end();
27        I != E; ++I) {
28     StringRef Name = I->getName();
29     // There is really no way (at present) to ask a Target whether it targets
30     // a specific architecture, because the logic for that is buried in a
31     // predicate.
32     // We can't ask the predicate "Are you a function that always returns
33     // false?"
34     // So given that the cpp backend truly has no target arch, it is skipped.
35     if (Name != "cpp") {
36       Triple::ArchType Arch = Triple::getArchTypeForLLVMName(Name);
37       EXPECT_NE(Arch, Triple::UnknownArch);
38       ++Count;
39     }
40   }
41   ASSERT_NE(Count, 0);
42 }
43
44 } // end namespace