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| author | Michael Platings <michael.platings@arm.com> | 2019-03-07 09:15:23 +0000 |
|---|---|---|
| committer | Michael Platings <michael.platings@arm.com> | 2019-03-07 09:15:23 +0000 |
| commit | fd4156ed4d30828fbcca7b42618dde0550c9b674 (patch) | |
| tree | fdc8b02c65f61b60fcdd2b7702a1e77badce6b9a /llvm/unittests/IR/FunctionTest.cpp | |
| parent | b0f764c73732958745f13e5310131d0e7c3fa400 (diff) | |
| download | bcm5719-llvm-fd4156ed4d30828fbcca7b42618dde0550c9b674.tar.gz bcm5719-llvm-fd4156ed4d30828fbcca7b42618dde0550c9b674.zip | |
[IR][ARM] Add function pointer alignment to datalayout
Use this feature to fix a bug on ARM where 4 byte alignment is
incorrectly assumed.
Differential Revision: https://reviews.llvm.org/D57335
llvm-svn: 355585
Diffstat (limited to 'llvm/unittests/IR/FunctionTest.cpp')
| -rw-r--r-- | llvm/unittests/IR/FunctionTest.cpp | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/llvm/unittests/IR/FunctionTest.cpp b/llvm/unittests/IR/FunctionTest.cpp index 10a359ff64b..c68b064afe3 100644 --- a/llvm/unittests/IR/FunctionTest.cpp +++ b/llvm/unittests/IR/FunctionTest.cpp @@ -129,4 +129,29 @@ TEST(FunctionTest, setSection) { EXPECT_TRUE(F->hasSection()); } +TEST(FunctionTest, GetPointerAlignment) { + LLVMContext Context; + Type *VoidType(Type::getVoidTy(Context)); + FunctionType *FuncType(FunctionType::get(VoidType, false)); + Function *Func = Function::Create( + FuncType, GlobalValue::ExternalLinkage); + EXPECT_EQ(0U, Func->getPointerAlignment(DataLayout(""))); + EXPECT_EQ(1U, Func->getPointerAlignment(DataLayout("Fi8"))); + EXPECT_EQ(1U, Func->getPointerAlignment(DataLayout("Fn8"))); + EXPECT_EQ(2U, Func->getPointerAlignment(DataLayout("Fi16"))); + EXPECT_EQ(2U, Func->getPointerAlignment(DataLayout("Fn16"))); + EXPECT_EQ(4U, Func->getPointerAlignment(DataLayout("Fi32"))); + EXPECT_EQ(4U, Func->getPointerAlignment(DataLayout("Fn32"))); + + Func->setAlignment(4U); + + EXPECT_EQ(0U, Func->getPointerAlignment(DataLayout(""))); + EXPECT_EQ(1U, Func->getPointerAlignment(DataLayout("Fi8"))); + EXPECT_EQ(4U, Func->getPointerAlignment(DataLayout("Fn8"))); + EXPECT_EQ(2U, Func->getPointerAlignment(DataLayout("Fi16"))); + EXPECT_EQ(4U, Func->getPointerAlignment(DataLayout("Fn16"))); + EXPECT_EQ(4U, Func->getPointerAlignment(DataLayout("Fi32"))); + EXPECT_EQ(4U, Func->getPointerAlignment(DataLayout("Fn32"))); +} + } // end namespace |
