[llvm] [BOLT] Add --pad-funcs-before=func:n (PR #117924)

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


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``````````bash
git-clang-format --diff 0ccc3895126aaa94ae3fe890fcca0ad69658bbab 1070183c9d1251c8e5892f2b9de1043147bf0744 --extensions cpp -- bolt/lib/Core/BinaryEmitter.cpp
``````````

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<summary>
View the diff from clang-format here.
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``````````diff
diff --git a/bolt/lib/Core/BinaryEmitter.cpp b/bolt/lib/Core/BinaryEmitter.cpp
index 456f380c1b..be21f1f363 100644
--- a/bolt/lib/Core/BinaryEmitter.cpp
+++ b/bolt/lib/Core/BinaryEmitter.cpp
@@ -54,13 +54,11 @@ FunctionPadSpec("pad-funcs",
   cl::Hidden,
   cl::cat(BoltCategory));
 
-static cl::list<std::string>
-FunctionPadBeforeSpec("pad-funcs-before",
-  cl::CommaSeparated,
-  cl::desc("list of functions to pad with amount of bytes"),
-  cl::value_desc("func1:pad1,func2:pad2,func3:pad3,..."),
-  cl::Hidden,
-  cl::cat(BoltCategory));
+static cl::list<std::string> FunctionPadBeforeSpec(
+    "pad-funcs-before", cl::CommaSeparated,
+    cl::desc("list of functions to pad with amount of bytes"),
+    cl::value_desc("func1:pad1,func2:pad2,func3:pad3,..."), cl::Hidden,
+    cl::cat(BoltCategory));
 
 static cl::opt<bool> MarkFuncs(
     "mark-funcs",
@@ -376,9 +374,9 @@ bool BinaryEmitter::emitFunction(BinaryFunction &Function,
     // Since the padding is not executed, it can be null bytes.
     Streamer.emitFill(Padding, 0);
 
-    Function.setMaxSize(Function.getMaxSize()+Padding);
-    Function.setSize(Function.getSize()+Padding);
-    Function.setImageSize(Function.getImageSize()+Padding);
+    Function.setMaxSize(Function.getMaxSize() + Padding);
+    Function.setSize(Function.getSize() + Padding);
+    Function.setImageSize(Function.getImageSize() + Padding);
   }
 
   MCContext &Context = Streamer.getContext();

``````````

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https://github.com/llvm/llvm-project/pull/117924