[lld] [lld][COFF] Support .pdata section on ARM64EC targets. (PR #72521)

[Martin Storsjö via llvm-commits]

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@@ -1408,8 +1412,28 @@ void Writer::createSymbolAndStringTable() {
 void Writer::mergeSections() {
   llvm::TimeTraceScope timeScope("Merge sections");
   if (!pdataSec->chunks.empty()) {
-    firstPdata = pdataSec->chunks.front();
-    lastPdata = pdataSec->chunks.back();
+    if (isArm64EC(ctx.config.machine)) {
+      // On ARM64EC we .pdata may contain both ARM64 and X64 data. Split them by
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mstorsjo wrote:

This comment seems to have a typo

https://github.com/llvm/llvm-project/pull/72521