[llvm] [RISCV][CFI] add function epilogue cfi information (PR #110810)

[via llvm-commits]

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@@ -1724,9 +1738,13 @@ define i32 @va_large_stack(ptr %fmt, ...) {
 ; RV64-WITHFP-NEXT:    lui a1, 24414
 ; RV64-WITHFP-NEXT:    addiw a1, a1, -1680
 ; RV64-WITHFP-NEXT:    add sp, sp, a1
+; RV64-WITHFP-NEXT:    .cfi_def_cfa_offset 2032
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dlav-sc wrote:

addressed

https://github.com/llvm/llvm-project/pull/110810