[llvm] MC: Store fragment content and fixups out-of-line (PR #146307)

[Alexis Engelke via llvm-commits]

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@@ -1027,7 +1029,7 @@ bool MCAssembler::relaxLEB(MCLEBFragment &LF) {
     if (UseZeroPad)
       Value = 0;
   }
-  Data.clear();
+  SmallVector<char, 16> Data;
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aengelke wrote:

array + encode*LEB128(Value, Data.data(), PadTo) to avoid raw_ostream overhead.

https://github.com/llvm/llvm-project/pull/146307