[lld] [lld][Wasm] Do not emit relocs against dead symbols (PR #129346)

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github-actions[bot] wrote:

<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


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``````````bash
git-clang-format --diff 743571b5f11599232a2a0a9c396827782ed4868c 8436f5a0a0b4c96c011e1b1533a133b683b4d996 --extensions h,cpp -- lld/wasm/InputChunks.cpp lld/wasm/InputChunks.h lld/wasm/OutputSections.cpp lld/wasm/OutputSections.h lld/wasm/Symbols.cpp
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<details>
<summary>
View the diff from clang-format here.
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``````````diff
diff --git a/lld/wasm/InputChunks.cpp b/lld/wasm/InputChunks.cpp
index 0558f64aa7..7a8409ffc2 100644
--- a/lld/wasm/InputChunks.cpp
+++ b/lld/wasm/InputChunks.cpp
@@ -167,15 +167,16 @@ void InputChunk::relocate(uint8_t *buf) const {
   }
 }
 
-static bool relocIsLive(const WasmRelocation& rel, ObjFile* file) {
+static bool relocIsLive(const WasmRelocation &rel, ObjFile *file) {
   return rel.Type == R_WASM_TYPE_INDEX_LEB ||
-    file->getSymbol(rel.Index)->isLive();
+         file->getSymbol(rel.Index)->isLive();
 }
 
 size_t InputChunk::getNumLiveRelocations() const {
   size_t result = 0;
-  for (const WasmRelocation& rel : relocations) {
-    if (relocIsLive(rel, file)) result ++;
+  for (const WasmRelocation &rel : relocations) {
+    if (relocIsLive(rel, file))
+      result++;
   }
   return result;
 }

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https://github.com/llvm/llvm-project/pull/129346