Fix resetting the DataLayout in a Module.

No tool does this currently, but as everything else in a module we should be
able to change its DataLayout.

Most of the fix is in DataLayout to make sure it can be reset properly.

The test uses Module::setDataLayout since the fact that we mutate a DataLayout
is an implementation detail. The module could hold a OwningPtr<DataLayout> and
the DataLayout itself could be immutable.

Thanks to Philip Reames for pushing me in the right direction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202198 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2014-02-25 22:23:04 +00:00
parent 9c256eccb3
commit 3f0a9af13b
4 changed files with 38 additions and 11 deletions

View File

@@ -108,6 +108,14 @@ TEST_F(IRBuilderTest, LandingPadName) {
EXPECT_EQ(LP->getName(), "LP");
}
TEST_F(IRBuilderTest, DataLayout) {
OwningPtr<Module> M(new Module("test", Ctx));
M->setDataLayout("e-n32");
EXPECT_TRUE(M->getDataLayout()->isLegalInteger(32));
M->setDataLayout("e");
EXPECT_FALSE(M->getDataLayout()->isLegalInteger(32));
}
TEST_F(IRBuilderTest, GetIntTy) {
IRBuilder<> Builder(BB);
IntegerType *Ty1 = Builder.getInt1Ty();