unittests/IR/AttributesTest.cpp

   1 //===- llvm/unittest/IR/AttributesTest.cpp - Attributes 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/IR/Attributes.h"
  11 #include "llvm/IR/LLVMContext.h"
  12 #include "gtest/gtest.h"
  13 using namespace llvm;
  14
  15 namespace {
  16
  17 TEST(Attributes, Uniquing) {
  18   LLVMContext C;
  19
  20   Attribute AttrA = Attribute::get(C, Attribute::AlwaysInline);
  21   Attribute AttrB = Attribute::get(C, Attribute::AlwaysInline);
  22   EXPECT_EQ(AttrA, AttrB);
  23
  24   AttributeSet ASs[] = {
  25     AttributeSet::get(C, 1, Attribute::ZExt),
  26     AttributeSet::get(C, 2, Attribute::SExt)
  27   };
  28
  29   AttributeSet SetA = AttributeSet::get(C, ASs);
  30   AttributeSet SetB = AttributeSet::get(C, ASs);
  31   EXPECT_EQ(SetA, SetB);
  32 }
  33
  34 TEST(Attributes, Ordering) {
  35   LLVMContext C;
  36
  37   Attribute Align4 = Attribute::get(C, Attribute::Alignment, 4);
  38   Attribute Align5 = Attribute::get(C, Attribute::Alignment, 5);
  39   Attribute Deref4 = Attribute::get(C, Attribute::Dereferenceable, 4);
  40   Attribute Deref5 = Attribute::get(C, Attribute::Dereferenceable, 5);
  41   EXPECT_TRUE(Align4 < Align5);
  42   EXPECT_TRUE(Align4 < Deref4);
  43   EXPECT_TRUE(Align4 < Deref5);
  44   EXPECT_TRUE(Align5 < Deref4);
  45
  46   AttributeSet ASs[] = {
  47     AttributeSet::get(C, 2, Attribute::ZExt),
  48     AttributeSet::get(C, 1, Attribute::SExt)
  49   };
  50
  51   AttributeSet SetA = AttributeSet::get(C, ASs);
  52   AttributeSet SetB = SetA.removeAttributes(C, 1, ASs[1]);
  53   EXPECT_NE(SetA, SetB);
  54 }
  55
  56 } // end anonymous namespace