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IR: Expose the method 'getLocalSlot' in the module slot tracker.

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This commit publicly exposes the method 'getLocalSlot' in the
'ModuleSlotTracker' class.

This change is useful for MIR serialization, to serialize the unnamed basic
block and unnamed alloca references.

Reviewers: Duncan P. N. Exon Smith


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@243336 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Alex Lorenz
2015-07-27 22:31:04 +00:00
parent 10da90aaf3
commit 9adb2129bd
3 changed files with 73 additions and 0 deletions
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unittests/IR/ValueTest.cpp
+60
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@@ -175,4 +175,64 @@ TEST(ValueTest, printSlots) {
#undef CHECK_PRINT_AS_OPERAND
}
TEST(ValueTest, getLocalSlots) {
// Verify that the getLocalSlot method returns the correct slot numbers.
LLVMContext C;
const char *ModuleString = "define void @f(i32 %x, i32 %y) {\n"
"entry:\n"
" %0 = add i32 %y, 1\n"
" %1 = add i32 %y, 1\n"
" br label %2\n"
"\n"
" ret void\n"
"}\n";
SMDiagnostic Err;
std::unique_ptr<Module> M = parseAssemblyString(ModuleString, Err, C);
Function *F = M->getFunction("f");
ASSERT_TRUE(F);
ASSERT_FALSE(F->empty());
BasicBlock &EntryBB = F->getEntryBlock();
ASSERT_EQ(3u, EntryBB.size());
BasicBlock *BB2 = ++F->begin();
ASSERT_TRUE(BB2);
Instruction *I0 = EntryBB.begin();
ASSERT_TRUE(I0);
Instruction *I1 = ++EntryBB.begin();
ASSERT_TRUE(I1);
ModuleSlotTracker MST(M.get());
MST.incorporateFunction(*F);
EXPECT_EQ(MST.getLocalSlot(I0), 0);
EXPECT_EQ(MST.getLocalSlot(I1), 1);
EXPECT_EQ(MST.getLocalSlot(&EntryBB), -1);
EXPECT_EQ(MST.getLocalSlot(BB2), 2);
}
#if defined(GTEST_HAS_DEATH_TEST) && !defined(NDEBUG)
TEST(ValueTest, getLocalSlotDeath) {
LLVMContext C;
const char *ModuleString = "define void @f(i32 %x, i32 %y) {\n"
"entry:\n"
" %0 = add i32 %y, 1\n"
" %1 = add i32 %y, 1\n"
" br label %2\n"
"\n"
" ret void\n"
"}\n";
SMDiagnostic Err;
std::unique_ptr<Module> M = parseAssemblyString(ModuleString, Err, C);
Function *F = M->getFunction("f");
ASSERT_TRUE(F);
ASSERT_FALSE(F->empty());
BasicBlock *BB2 = ++F->begin();
ASSERT_TRUE(BB2);
ModuleSlotTracker MST(M.get());
EXPECT_DEATH(MST.getLocalSlot(BB2), "No function incorporated");
}
#endif
} // end anonymous namespace