[lld] [RISCV][LLD] Add RISCV zcmt optimise in linker relaxation (PR #77884)

[Kito Cheng via llvm-commits]

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@@ -838,9 +893,11 @@ void elf::riscvFinalizeRelax(int passes) {
             skip = 4;
             write32le(p, aux.writes[writesIdx++]);
             break;
+          case R_RISCV_64:
+            break;
           case R_RISCV_32:
-            // Used by relaxTlsLe to write a uint32_t then suppress the handling
-            // in relocateAlloc.
+            // Used by relaxTlsLe to write a uint32_t then suppress the
+            // handling in relocateAlloc.
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kito-cheng wrote:

Keep unchanged since it not related to this change. 

https://github.com/llvm/llvm-project/pull/77884