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https://github.com/c64scene-ar/llvm-6502.git
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117feba971
can be used to turn a <4 x i64> into a <4 x i32> but getCastOpcode would assert if you passed these types to it. Note that this strictly extends the previous functionality: if getCastOpcode previously accepted two vector types (i.e. didn't assert) then it still will and returns the same opcode (BitCast). That's because before it would only accept vectors with the same bitwidth, and the new code only touches vectors with the same length. However if two vectors have both the same bitwidth and the same length then their element types have the same bitwidth, so the new logic will return BitCast as before. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131530 91177308-0d34-0410-b5e6-96231b3b80d8
134 lines
3.6 KiB
C++
134 lines
3.6 KiB
C++
//===- llvm/unittest/VMCore/InstructionsTest.cpp - Instructions unit tests ===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Instructions.h"
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#include "llvm/BasicBlock.h"
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#include "llvm/Constants.h"
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#include "llvm/DerivedTypes.h"
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#include "llvm/LLVMContext.h"
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#include "llvm/ADT/STLExtras.h"
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#include "gtest/gtest.h"
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namespace llvm {
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namespace {
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TEST(InstructionsTest, ReturnInst) {
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LLVMContext &C(getGlobalContext());
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// test for PR6589
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const ReturnInst* r0 = ReturnInst::Create(C);
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EXPECT_EQ(r0->getNumOperands(), 0U);
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EXPECT_EQ(r0->op_begin(), r0->op_end());
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const IntegerType* Int1 = IntegerType::get(C, 1);
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Constant* One = ConstantInt::get(Int1, 1, true);
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const ReturnInst* r1 = ReturnInst::Create(C, One);
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EXPECT_EQ(r1->getNumOperands(), 1U);
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User::const_op_iterator b(r1->op_begin());
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EXPECT_NE(b, r1->op_end());
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EXPECT_EQ(*b, One);
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EXPECT_EQ(r1->getOperand(0), One);
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++b;
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EXPECT_EQ(b, r1->op_end());
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// clean up
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delete r0;
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delete r1;
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}
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TEST(InstructionsTest, BranchInst) {
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LLVMContext &C(getGlobalContext());
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// Make a BasicBlocks
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BasicBlock* bb0 = BasicBlock::Create(C);
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BasicBlock* bb1 = BasicBlock::Create(C);
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// Mandatory BranchInst
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const BranchInst* b0 = BranchInst::Create(bb0);
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EXPECT_TRUE(b0->isUnconditional());
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EXPECT_FALSE(b0->isConditional());
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EXPECT_EQ(b0->getNumSuccessors(), 1U);
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// check num operands
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EXPECT_EQ(b0->getNumOperands(), 1U);
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EXPECT_NE(b0->op_begin(), b0->op_end());
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EXPECT_EQ(llvm::next(b0->op_begin()), b0->op_end());
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EXPECT_EQ(llvm::next(b0->op_begin()), b0->op_end());
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const IntegerType* Int1 = IntegerType::get(C, 1);
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Constant* One = ConstantInt::get(Int1, 1, true);
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// Conditional BranchInst
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BranchInst* b1 = BranchInst::Create(bb0, bb1, One);
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EXPECT_FALSE(b1->isUnconditional());
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EXPECT_TRUE(b1->isConditional());
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EXPECT_EQ(b1->getNumSuccessors(), 2U);
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// check num operands
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EXPECT_EQ(b1->getNumOperands(), 3U);
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User::const_op_iterator b(b1->op_begin());
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// check COND
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EXPECT_NE(b, b1->op_end());
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EXPECT_EQ(*b, One);
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EXPECT_EQ(b1->getOperand(0), One);
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EXPECT_EQ(b1->getCondition(), One);
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++b;
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// check ELSE
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EXPECT_EQ(*b, bb1);
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EXPECT_EQ(b1->getOperand(1), bb1);
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EXPECT_EQ(b1->getSuccessor(1), bb1);
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++b;
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// check THEN
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EXPECT_EQ(*b, bb0);
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EXPECT_EQ(b1->getOperand(2), bb0);
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EXPECT_EQ(b1->getSuccessor(0), bb0);
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++b;
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EXPECT_EQ(b, b1->op_end());
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// clean up
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delete b0;
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delete b1;
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delete bb0;
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delete bb1;
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}
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TEST(InstructionsTest, CastInst) {
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LLVMContext &C(getGlobalContext());
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const Type* Int8Ty = Type::getInt8Ty(C);
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const Type* Int64Ty = Type::getInt64Ty(C);
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const Type* V8x8Ty = VectorType::get(Int8Ty, 8);
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const Type* V8x64Ty = VectorType::get(Int64Ty, 8);
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const Type* X86MMXTy = Type::getX86_MMXTy(C);
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const Constant* c8 = Constant::getNullValue(V8x8Ty);
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const Constant* c64 = Constant::getNullValue(V8x64Ty);
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EXPECT_TRUE(CastInst::isCastable(V8x8Ty, X86MMXTy));
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EXPECT_TRUE(CastInst::isCastable(X86MMXTy, V8x8Ty));
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EXPECT_FALSE(CastInst::isCastable(Int64Ty, X86MMXTy));
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EXPECT_TRUE(CastInst::isCastable(V8x64Ty, V8x8Ty));
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EXPECT_TRUE(CastInst::isCastable(V8x8Ty, V8x64Ty));
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EXPECT_EQ(CastInst::getCastOpcode(c64, true, V8x8Ty, true), CastInst::Trunc);
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EXPECT_EQ(CastInst::getCastOpcode(c8, true, V8x64Ty, true), CastInst::SExt);
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}
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} // end anonymous namespace
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} // end namespace llvm
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