Add a unit test to verifies that attribute uniquing works so it doesn't break again.

The folding set details can be subtle and broke twice in the last couple of weeks.

llvm-svn: 172313
This commit is contained in:
Benjamin Kramer 2013-01-12 14:13:45 +00:00
parent 53acb32afc
commit 410780b82c
2 changed files with 35 additions and 0 deletions

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@ -0,0 +1,34 @@
//===- llvm/unittest/IR/AttributesTest.cpp - Attributes 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/IR/Attributes.h"
#include "llvm/IR/LLVMContext.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
TEST(Attributes, Uniquing) {
LLVMContext C;
Attribute AttrA = Attribute::get(C, Attribute::AlwaysInline);
Attribute AttrB = Attribute::get(C, Attribute::AlwaysInline);
EXPECT_EQ(AttrA, AttrB);
AttributeWithIndex AWIs[] = {
AttributeWithIndex::get(C, 1, Attribute::ZExt),
AttributeWithIndex::get(C, 2, Attribute::SExt)
};
AttributeSet SetA = AttributeSet::get(C, AWIs);
AttributeSet SetB = AttributeSet::get(C, AWIs);
EXPECT_EQ(SetA, SetB);
}
} // end anonymous namespace

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@ -5,6 +5,7 @@ set(LLVM_LINK_COMPONENTS
)
set(IRSources
AttributesTest.cpp
ConstantsTest.cpp
DominatorTreeTest.cpp
IRBuilderTest.cpp