1 files changed, 88 insertions, 0 deletions
diff --git a/unittests/AsmParser/AsmParserTest.cpp b/unittests/AsmParser/AsmParserTest.cpp
index 9c2081fa2f2d..4189310fda23 100644
--- a/unittests/AsmParser/AsmParserTest.cpp
+++ b/unittests/AsmParser/AsmParserTest.cpp
@@ -10,6 +10,7 @@
 #include "llvm/ADT/StringRef.h"
 #include "llvm/AsmParser/Parser.h"
 #include "llvm/AsmParser/SlotMapping.h"
+#include "llvm/IR/Constants.h"
 #include "llvm/IR/LLVMContext.h"
 #include "llvm/IR/Module.h"
 #include "llvm/Support/SourceMgr.h"
@@ -64,4 +65,91 @@ TEST(AsmParserTest, SlotMappingTest) {
   EXPECT_EQ(Mapping.MetadataNodes.count(1), 0u);
 }
 
+TEST(AsmParserTest, TypeAndConstantValueParsing) {
+  LLVMContext &Ctx = getGlobalContext();
+  SMDiagnostic Error;
+  StringRef Source = "define void @test() {\n  entry:\n  ret void\n}";
+  auto Mod = parseAssemblyString(Source, Error, Ctx);
+  ASSERT_TRUE(Mod != nullptr);
+  auto &M = *Mod;
+
+  const Value *V;
+  V = parseConstantValue("double 3.5", Error, M);
+  ASSERT_TRUE(V);
+  EXPECT_TRUE(V->getType()->isDoubleTy());
+  ASSERT_TRUE(isa<ConstantFP>(V));
+  EXPECT_TRUE(cast<ConstantFP>(V)->isExactlyValue(3.5));
+
+  V = parseConstantValue("i32 42", Error, M);
+  ASSERT_TRUE(V);
+  EXPECT_TRUE(V->getType()->isIntegerTy());
+  ASSERT_TRUE(isa<ConstantInt>(V));
+  EXPECT_TRUE(cast<ConstantInt>(V)->equalsInt(42));
+
+  V = parseConstantValue("<4 x i32> <i32 0, i32 1, i32 2, i32 3>", Error, M);
+  ASSERT_TRUE(V);
+  EXPECT_TRUE(V->getType()->isVectorTy());
+  ASSERT_TRUE(isa<ConstantDataVector>(V));
+
+  V = parseConstantValue("i32 add (i32 1, i32 2)", Error, M);
+  ASSERT_TRUE(V);
+  ASSERT_TRUE(isa<ConstantInt>(V));
+
+  V = parseConstantValue("i8* blockaddress(@test, %entry)", Error, M);
+  ASSERT_TRUE(V);
+  ASSERT_TRUE(isa<BlockAddress>(V));
+
+  V = parseConstantValue("i8** undef", Error, M);
+  ASSERT_TRUE(V);
+  ASSERT_TRUE(isa<UndefValue>(V));
+
+  EXPECT_FALSE(parseConstantValue("duble 3.25", Error, M));
+  EXPECT_EQ(Error.getMessage(), "expected type");
+
+  EXPECT_FALSE(parseConstantValue("i32 3.25", Error, M));
+  EXPECT_EQ(Error.getMessage(), "floating point constant invalid for type");
+
+  EXPECT_FALSE(parseConstantValue("i32* @foo", Error, M));
+  EXPECT_EQ(Error.getMessage(), "expected a constant value");
+
+  EXPECT_FALSE(parseConstantValue("i32 3, ", Error, M));
+  EXPECT_EQ(Error.getMessage(), "expected end of string");
+}
+
+TEST(AsmParserTest, TypeAndConstantValueWithSlotMappingParsing) {
+  LLVMContext &Ctx = getGlobalContext();
+  SMDiagnostic Error;
+  StringRef Source =
+      "%st = type { i32, i32 }\n"
+      "@v = common global [50 x %st] zeroinitializer, align 16\n"
+      "%0 = type { i32, i32, i32, i32 }\n"
+      "@g = common global [50 x %0] zeroinitializer, align 16\n"
+      "define void @marker4(i64 %d) {\n"
+      "entry:\n"
+      "  %conv = trunc i64 %d to i32\n"
+      "  store i32 %conv, i32* getelementptr inbounds "
+      "    ([50 x %st], [50 x %st]* @v, i64 0, i64 0, i32 0), align 16\n"
+      "  store i32 %conv, i32* getelementptr inbounds "
+      "    ([50 x %0], [50 x %0]* @g, i64 0, i64 0, i32 0), align 16\n"
+      "  ret void\n"
+      "}";
+  SlotMapping Mapping;
+  auto Mod = parseAssemblyString(Source, Error, Ctx, &Mapping);
+  ASSERT_TRUE(Mod != nullptr);
+  auto &M = *Mod;
+
+  const Value *V;
+  V = parseConstantValue("i32* getelementptr inbounds ([50 x %st], [50 x %st]* "
+                         "@v, i64 0, i64 0, i32 0)",
+                         Error, M, &Mapping);
+  ASSERT_TRUE(V);
+  ASSERT_TRUE(isa<ConstantExpr>(V));
+
+  V = parseConstantValue("i32* getelementptr inbounds ([50 x %0], [50 x %0]* "
+                         "@g, i64 0, i64 0, i32 0)",
+                         Error, M, &Mapping);
+  ASSERT_TRUE(V);
+  ASSERT_TRUE(isa<ConstantExpr>(V));
+}
+
 } // end anonymous namespace