[lld] [LLD][COFF] Add ARM64EC support to findLineTable. (PR #87240)

[Jacek Caban via llvm-commits]

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@@ -1735,6 +1735,8 @@ static uint32_t getSecrelReloc(llvm::COFF::MachineTypes machine) {
   case ARMNT:
     return COFF::IMAGE_REL_ARM_SECREL;
   case ARM64:
+  case ARM64EC:
+  case ARM64X:
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cjacek wrote:

Thinking some more about it, this is a common pattern. We could reduce the places that need to explicitly care about about ARM64EC/ARM64X with a helper like `getMachineArchType()` and using `Triple::ArchType` type for the switch. I will prepare a separate PR to discuss it.

https://github.com/llvm/llvm-project/pull/87240