From 8eb61d9154c5379c1a74f65aa850cac5060c8b0a Mon Sep 17 00:00:00 2001
From: Rahman Lavaee <rahmanl@google.com>
Date: Wed, 2 Jul 2025 13:01:43 -0700
Subject: [SHT_LLVM_BB_ADDR_MAP] Cleanup old version support code from ELF.cpp.

This change was mistakenly dropped from the prior commit 6b623a6622707ea47d84ab0069f766215a6fec44
---
 llvm/lib/Object/ELF.cpp | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

(limited to 'llvm/lib/Object/ELF.cpp')

diff --git a/llvm/lib/Object/ELF.cpp b/llvm/lib/Object/ELF.cpp
index 1d9fd6b..8a6efc4 100644
--- a/llvm/lib/Object/ELF.cpp
+++ b/llvm/lib/Object/ELF.cpp
@@ -885,9 +885,7 @@ decodeBBAddrMapImpl(const ELFFile<ELFT> &EF,
         for (uint32_t BlockIndex = 0; !MetadataDecodeErr && !ULEBSizeErr &&
                                       Cur && (BlockIndex < NumBlocksInBBRange);
              ++BlockIndex) {
-          uint32_t ID = Version >= 2
-                            ? readULEB128As<uint32_t>(Data, Cur, ULEBSizeErr)
-                            : BlockIndex;
+          uint32_t ID = readULEB128As<uint32_t>(Data, Cur, ULEBSizeErr);
           uint32_t Offset = readULEB128As<uint32_t>(Data, Cur, ULEBSizeErr);
           // Read the callsite offsets.
           uint32_t LastCallsiteOffset = 0;
@@ -907,11 +905,6 @@ decodeBBAddrMapImpl(const ELFFile<ELFT> &EF,
           uint32_t Size = readULEB128As<uint32_t>(Data, Cur, ULEBSizeErr) +
                           LastCallsiteOffset;
           uint32_t MD = readULEB128As<uint32_t>(Data, Cur, ULEBSizeErr);
-          if (Version >= 1) {
-            // Offset is calculated relative to the end of the previous BB.
-            Offset += PrevBBEndOffset;
-            PrevBBEndOffset = Offset + Size;
-          }
           Expected<BBAddrMap::BBEntry::Metadata> MetadataOrErr =
               BBAddrMap::BBEntry::Metadata::decode(MD);
           if (!MetadataOrErr) {
@@ -919,7 +912,8 @@ decodeBBAddrMapImpl(const ELFFile<ELFT> &EF,
             break;
           }
           BBEntries.push_back(
-              {ID, Offset, Size, *MetadataOrErr, CallsiteOffsets});
+              {ID, Offset + PrevBBEndOffset, Size, *MetadataOrErr, CallsiteOffsets});
+          PrevBBEndOffset += Offset + Size;
         }
         TotalNumBlocks += BBEntries.size();
       }
-- 
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