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Fix invalid cast.

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Fixes PR22525.

Patch by Ben Longbons with testcase by me.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230271 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2015-02-23 21:51:06 +00:00
parent ad6622575c
commit 38ce6c7c1c
2 changed files with 17 additions and 1 deletions
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16
unittests/IR/ConstantsTest.cpp
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@@ -7,12 +7,14 @@
//
//===----------------------------------------------------------------------===//
#include "llvm/AsmParser/Parser.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/InstrTypes.h"
#include "llvm/IR/Instruction.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Module.h"
#include "llvm/Support/SourceMgr.h"
#include "gtest/gtest.h"
namespace llvm {
@@ -347,5 +349,19 @@ TEST(ConstantsTest, GEPReplaceWithConstant) {
ASSERT_EQ(GEP->getOperand(0), Alias);
}
TEST(ConstantsTest, AliasCAPI) {
LLVMContext Context;
SMDiagnostic Error;
std::unique_ptr<Module> M =
parseAssemblyString("@g = global i32 42", Error, Context);
GlobalVariable *G = M->getGlobalVariable("g");
Type *I16Ty = Type::getInt16Ty(Context);
Type *I16PTy = PointerType::get(I16Ty, 0);
Constant *Aliasee = ConstantExpr::getBitCast(G, I16PTy);
LLVMValueRef AliasRef =
LLVMAddAlias(wrap(M.get()), wrap(I16PTy), wrap(Aliasee), "a");
ASSERT_EQ(unwrap<GlobalAlias>(AliasRef)->getAliasee(), Aliasee);
}
} // end anonymous namespace
} // end namespace llvm