Index: llvm/include/llvm/ExecutionEngine/JITLink/riscv.h
===================================================================
--- llvm/include/llvm/ExecutionEngine/JITLink/riscv.h
+++ llvm/include/llvm/ExecutionEngine/JITLink/riscv.h
@@ -82,7 +82,37 @@
   ///
   /// Fixup expression:
   ///   Fixup <- (Target - Fixup + Addend)
-  R_RISCV_CALL_PLT
+  R_RISCV_CALL_PLT,
+
+  /// Local label assignment
+  ///
+  /// Fixup expression:
+  ///   Fixup <- (Target + Addend)
+  R_RISCV_SET6,
+
+  /// Local label assignment
+  ///
+  /// Fixup expression:
+  ///   Fixup <- (Target + Addend)
+  R_RISCV_SET8,
+
+  /// Local label assignment
+  ///
+  /// Fixup expression:
+  ///   Fixup <- (Target + Addend)
+  R_RISCV_SET16,
+
+  /// Local label assignment
+  ///
+  /// Fixup expression:
+  ///   Fixup <- (Target + Addend)
+  R_RISCV_SET32,
+
+  /// Local label assignment
+  ///
+  /// Fixup expression:
+  ///   Fixup <- (Target - Fixup + Addend)
+  R_RISCV_32_PCREL,
 
 };
 
Index: llvm/lib/ExecutionEngine/JITLink/ELF_riscv.cpp
===================================================================
--- llvm/lib/ExecutionEngine/JITLink/ELF_riscv.cpp
+++ llvm/lib/ExecutionEngine/JITLink/ELF_riscv.cpp
@@ -246,6 +246,39 @@
       *(little32_t *)FixupPtr = (RawInstr & 0x1FFF07F) | Imm31_25 | Imm11_7;
       break;
     }
+    case R_RISCV_SET6: {
+      int64_t Value = (E.getTarget().getAddress() + E.getAddend()).getValue();
+      uint32_t RawData = *(little32_t *)FixupPtr;
+      int64_t Word6 = Value & 0x3f;
+      *(little32_t *)FixupPtr = (RawData & 0xffffffc0) | Word6;
+      break;
+    }
+    case R_RISCV_SET8: {
+      int64_t Value = (E.getTarget().getAddress() + E.getAddend()).getValue();
+      uint32_t RawData = *(little32_t *)FixupPtr;
+      int64_t Word8 = Value & 0xff;
+      *(little32_t *)FixupPtr = (RawData & 0xffffff00) | Word8;
+      break;
+    }
+    case R_RISCV_SET16: {
+      int64_t Value = (E.getTarget().getAddress() + E.getAddend()).getValue();
+      uint32_t RawData = *(little32_t *)FixupPtr;
+      int64_t Word16 = Value & 0xffff;
+      *(little32_t *)FixupPtr = (RawData & 0xffff0000) | Word16;
+      break;
+    }
+    case R_RISCV_SET32: {
+      int64_t Value = (E.getTarget().getAddress() + E.getAddend()).getValue();
+      int64_t Word32 = Value & 0xffffffff;
+      *(little32_t *)FixupPtr = Word32;
+      break;
+    }
+    case R_RISCV_32_PCREL: {
+      int64_t Value = E.getTarget().getAddress() + E.getAddend() - FixupAddress;
+      int64_t Word32 = Value & 0xffffffff;
+      *(little32_t *)FixupPtr = Word32;
+      break;
+    }
     }
     return Error::success();
   }
@@ -278,6 +311,16 @@
       return EdgeKind_riscv::R_RISCV_GOT_HI20;
     case ELF::R_RISCV_CALL_PLT:
       return EdgeKind_riscv::R_RISCV_CALL_PLT;
+    case ELF::R_RISCV_SET6:
+      return EdgeKind_riscv::R_RISCV_SET6;
+    case ELF::R_RISCV_SET8:
+      return EdgeKind_riscv::R_RISCV_SET8;
+    case ELF::R_RISCV_SET16:
+      return EdgeKind_riscv::R_RISCV_SET16;
+    case ELF::R_RISCV_SET32:
+      return EdgeKind_riscv::R_RISCV_SET32;
+    case ELF::R_RISCV_32_PCREL:
+      return EdgeKind_riscv::R_RISCV_32_PCREL;
     }
 
     return make_error<JITLinkError>("Unsupported riscv relocation:" +
Index: llvm/lib/ExecutionEngine/JITLink/riscv.cpp
===================================================================
--- llvm/lib/ExecutionEngine/JITLink/riscv.cpp
+++ llvm/lib/ExecutionEngine/JITLink/riscv.cpp
@@ -36,6 +36,16 @@
     return "R_RISCV_PCREL_LO12_S";
   case R_RISCV_CALL:
     return "R_RISCV_CALL";
+  case R_RISCV_SET6:
+    return "R_RISCV_SET6";
+  case R_RISCV_SET8:
+    return "R_RISCV_SET8";
+  case R_RISCV_SET16:
+    return "R_RISCV_SET16";
+  case R_RISCV_SET32:
+    return "R_RISCV_SET32";
+  case R_RISCV_32_PCREL:
+    return "R_RISCV_32_PCREL";
   }
   return getGenericEdgeKindName(K);
 }
Index: llvm/test/ExecutionEngine/JITLink/RISCV/ELF_pc_relative.s
===================================================================
--- /dev/null
+++ llvm/test/ExecutionEngine/JITLink/RISCV/ELF_pc_relative.s
@@ -0,0 +1,19 @@
+# RUN: rm -rf %t && mkdir -p %t
+# RUN: llvm-mc -triple=riscv64 -filetype=obj -o %t/riscv64_pc_relative.o %s
+# RUN: llvm-mc -triple=riscv32 -filetype=obj -o %t/riscv32_pc_relative.o %s
+# RUN: llvm-jitlink -noexec -check %s %t/riscv64_pc_relative.o
+# RUN: llvm-jitlink -noexec -check %s %t/riscv32_pc_relative.o
+
+# jitlink-check: *{4}(foo) = 0x4
+
+.global main
+main:
+  lw a0, foo
+
+.section ".text","",@progbits
+.type foo,@function
+foo:
+  nop
+  nop
+  .reloc foo, R_RISCV_32_PCREL, foo+4
+  .size foo, 8
Index: llvm/test/ExecutionEngine/JITLink/RISCV/ELF_reloc_set.s
===================================================================
--- /dev/null
+++ llvm/test/ExecutionEngine/JITLink/RISCV/ELF_reloc_set.s
@@ -0,0 +1,31 @@
+# RUN: rm -rf %t && mkdir -p %t
+# RUN: llvm-mc -triple=riscv64 -filetype=obj -o %t/riscv64_reloc_set.o %s
+# RUN: llvm-mc -triple=riscv32 -filetype=obj -o %t/riscv32_reloc_set.o %s
+# RUN: llvm-jitlink -noexec \
+# RUN:  -slab-allocate 100Kb -slab-address 0xfff0f0f0 -slab-page-size 4096 \
+# RUN:  -check %s %t/riscv64_reloc_set.o
+# RUN: llvm-jitlink -noexec \
+# RUN:  -slab-allocate 100Kb -slab-address 0xfff0f0f0 -slab-page-size 4096 \
+# RUN:  -check %s %t/riscv32_reloc_set.o
+
+# jitlink-check: *{4}(foo) = foo
+# jitlink-check: *{2}(foo+4) = foo[15:0]
+# jitlink-check: *{1}(foo+6) = foo[7:0]
+# jitlink-check: *{1}(foo+7) = foo[5:0]
+
+.global main
+main:
+  lw a0, foo
+
+.section ".rodata","",@progbits
+.type foo,@object
+foo:
+  .reloc foo, R_RISCV_SET32, foo
+  .reloc foo+4, R_RISCV_SET16, foo
+  .reloc foo+6, R_RISCV_SET8, foo
+  .reloc foo+7, R_RISCV_SET6, foo
+  .word 0
+  .half 0
+  .byte 0
+  .byte 0
+  .size foo, 8