diff --git a/llvm/lib/Object/RelocationResolver.cpp b/llvm/lib/Object/RelocationResolver.cpp
--- a/llvm/lib/Object/RelocationResolver.cpp
+++ b/llvm/lib/Object/RelocationResolver.cpp
@@ -433,6 +433,7 @@
   case ELF::R_RISCV_32_PCREL:
   case ELF::R_RISCV_64:
   case ELF::R_RISCV_SET6:
+  case ELF::R_RISCV_SET8:
   case ELF::R_RISCV_SUB6:
   case ELF::R_RISCV_ADD8:
   case ELF::R_RISCV_SUB8:
@@ -463,6 +464,8 @@
     return S + RA;
   case ELF::R_RISCV_SET6:
     return (A & 0xC0) | ((S + RA) & 0x3F);
+  case ELF::R_RISCV_SET8:
+    return (S + RA) & 0xFF;
   case ELF::R_RISCV_SUB6:
     return (A & 0xC0) | (((A & 0x3F) - (S + RA)) & 0x3F);
   case ELF::R_RISCV_ADD8:
diff --git a/llvm/test/MC/RISCV/cfi-advance.s b/llvm/test/MC/RISCV/cfi-advance.s
new file mode 100644
--- /dev/null
+++ b/llvm/test/MC/RISCV/cfi-advance.s
@@ -0,0 +1,18 @@
+# RUN: llvm-mc -filetype=obj -triple riscv32 %s -o %t.o  
+# RUN: llvm-readobj -r %t.o | FileCheck -check-prefix=RELAX %s
+# RUN: llvm-dwarfdump --debug-info --debug-line %t.o 2>&1 \
+# RUN:     | FileCheck -check-prefix=RELAX-DWARFDUMP %s
+
+#RELAX: 0x26 R_RISCV_SET8 - 0x0
+#RELAX-DWARFDUMP-NOT: error: failed to compute relocation
+        .text
+        .globl  test                            # -- Begin function test
+        .p2align        1
+        .type   test,@function
+test:
+        .cfi_startproc
+        nop
+        .zero 100, 0x90
+        .cfi_def_cfa_offset 8
+        nop
+        .cfi_endproc