#undef EXPECT_INVALID
}
+TEST_F(DIExpressionTest, createFragmentExpression) {
+#define EXPECT_VALID_FRAGMENT(Offset, Size, ...) \
+ do { \
+ uint64_t Elements[] = {__VA_ARGS__}; \
+ DIExpression* Expression = DIExpression::get(Context, Elements); \
+ EXPECT_TRUE(DIExpression::createFragmentExpression( \
+ Expression, Offset, Size).hasValue()); \
+ } while (false)
+#define EXPECT_INVALID_FRAGMENT(Offset, Size, ...) \
+ do { \
+ uint64_t Elements[] = {__VA_ARGS__}; \
+ DIExpression* Expression = DIExpression::get(Context, Elements); \
+ EXPECT_FALSE(DIExpression::createFragmentExpression( \
+ Expression, Offset, Size).hasValue()); \
+ } while (false)
+
+ // createFragmentExpression adds correct ops.
+ Optional<DIExpression*> R = DIExpression::createFragmentExpression(
+ DIExpression::get(Context, {}), 0, 32);
+ EXPECT_EQ(R.hasValue(), true);
+ EXPECT_EQ(3u, (*R)->getNumElements());
+ EXPECT_EQ(dwarf::DW_OP_LLVM_fragment, (*R)->getElement(0));
+ EXPECT_EQ(0u, (*R)->getElement(1));
+ EXPECT_EQ(32u, (*R)->getElement(2));
+
+ // Valid fragment expressions.
+ EXPECT_VALID_FRAGMENT(0, 32, {});
+ EXPECT_VALID_FRAGMENT(0, 32, dwarf::DW_OP_deref);
+ EXPECT_VALID_FRAGMENT(0, 32, dwarf::DW_OP_LLVM_fragment, 0, 32);
+ EXPECT_VALID_FRAGMENT(16, 16, dwarf::DW_OP_LLVM_fragment, 0, 32);
+
+ // Invalid fragment expressions (incompatible ops).
+ EXPECT_INVALID_FRAGMENT(0, 32, dwarf::DW_OP_constu, 6, dwarf::DW_OP_plus);
+ EXPECT_INVALID_FRAGMENT(0, 32, dwarf::DW_OP_constu, 14, dwarf::DW_OP_minus);
+ EXPECT_INVALID_FRAGMENT(0, 32, dwarf::DW_OP_constu, 16, dwarf::DW_OP_shr);
+ EXPECT_INVALID_FRAGMENT(0, 32, dwarf::DW_OP_constu, 16, dwarf::DW_OP_shl);
+ EXPECT_INVALID_FRAGMENT(0, 32, dwarf::DW_OP_constu, 16, dwarf::DW_OP_shra);
+ EXPECT_INVALID_FRAGMENT(0, 32, dwarf::DW_OP_plus_uconst, 6);
+
+#undef EXPECT_VALID_FRAGMENT
+#undef EXPECT_INVALID_FRAGMENT
+}
+
typedef MetadataTest DIObjCPropertyTest;
TEST_F(DIObjCPropertyTest, get) {