[llvm] [SHT_LLVM_BB_ADDR_MAP] Adds test for when PGO exists but feature bit is off. (PR #77366)

[Micah Weston via llvm-commits]

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@@ -897,6 +897,34 @@ TEST(ELFObjectFileTest, InvalidDecodePGOAnalysisMap) {
 
   DoCheck(MissingBrProb, "unable to decode LEB128 at offset 0x00000017: "
                          "malformed uleb128, extends past end");
+
+  // Check that we fail when pgo data exists but the feature bits are disabled.
+  SmallString<128> ZeroFeatureButWithAnalyses(CommonYamlString);
+  ZeroFeatureButWithAnalyses += R"(
+        Version: 2
+        Feature: 0x00
+        BBEntries:
+          - ID:            1
+            AddressOffset: 0x0
+            Size:          0x1
+            Metadata:      0x6
+          - ID:            2
+            AddressOffset: 0x1
+            Size:          0x1
+            Metadata:      0x2
+      - Address: 0x11111
+        Version: 2
+        Feature: 0x00
+        BBEntries: []
+    PGOAnalyses:
+      - PGOBBEntries:
+         - BBFreq:        1000
+         - BBFreq:        1000
+      - PGOBBEntries: []
+)";
+
+  DoCheck(ZeroFeatureButWithAnalyses,
+          "unsupported SHT_LLVM_BB_ADDR_MAP version: 232");
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red1bluelost wrote:

I noticed that this is the case on the previous test MissingBrProb. I'm going to remove the early returns so that ELFEmitter is more geared for testing.

https://github.com/llvm/llvm-project/pull/77366