[llvm] Implements PGOBBAddrMap in Object and ObjectYAML with tests [1/5] (PR #71750)

[Rahman Lavaee via llvm-commits]

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@@ -744,6 +745,386 @@ TEST(ELFObjectFileTest, ReadBBAddrMap) {
                   Section1BBAddrMaps);
 }
 
+// Tests for error paths of the ELFFile::decodeBBAddrMap with PGOBBAddrMap API.
+TEST(ELFObjectFileTest, InvalidDecodePGOBBAddrMap) {
+  if (IsHostWindows())
+    GTEST_SKIP();
+  StringRef CommonYamlString(R"(
+--- !ELF
+FileHeader:
+  Class: ELFCLASS64
+  Data:  ELFDATA2LSB
+  Type:  ET_EXEC
+Sections:
+  - Type: SHT_LLVM_BB_ADDR_MAP
+    Name: .llvm_bb_addr_map
+    Entries:
+      - Address: 0x11111
+)");
+
+  auto DoCheck = [&](StringRef YamlString, const char *ErrMsg) {
+    SmallString<0> Storage;
+    Expected<ELFObjectFile<ELF64LE>> ElfOrErr =
+        toBinary<ELF64LE>(Storage, YamlString);
+    ASSERT_THAT_EXPECTED(ElfOrErr, Succeeded());
+    const ELFFile<ELF64LE> &Elf = ElfOrErr->getELFFile();
+
+    Expected<const typename ELF64LE::Shdr *> BBAddrMapSecOrErr =
+        Elf.getSection(1);
+    ASSERT_THAT_EXPECTED(BBAddrMapSecOrErr, Succeeded());
+
+    std::vector<PGOAnalysisMap> PGOAnalyses;
+    EXPECT_THAT_ERROR(
+        Elf.decodeBBAddrMap(**BBAddrMapSecOrErr, nullptr, &PGOAnalyses)
+            .takeError(),
+        FailedWithMessage(ErrMsg));
+  };
+
+  // Check that we can detect unsupported versions that is too low
----------------
rlavaee wrote:

"versions that are too old"

https://github.com/llvm/llvm-project/pull/71750