[RelocationResolver] Add R_RISCV_SET{16,32}

llvm/lib/Object/RelocationResolver.cpp

static bool supportsRISCV(uint64_t Type) {
   case ELF::R_RISCV_32:
   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:
+  case ELF::R_RISCV_SET16:
   case ELF::R_RISCV_ADD16:
   case ELF::R_RISCV_SUB16:
+  case ELF::R_RISCV_SET32:
   case ELF::R_RISCV_ADD32:
   case ELF::R_RISCV_SUB32:
   case ELF::R_RISCV_ADD64:
   case ELF::R_RISCV_SUB64:
     return true;
   default:
     return false;
   }
static uint64_t resolveRISCV(uint64_t Type, uint64_t Offset, uint64_t S,
   case ELF::R_RISCV_SUB6:
     return (A & 0xC0) | (((A & 0x3F) - (S + RA)) & 0x3F);
   case ELF::R_RISCV_SET8:
     return (S + RA) & 0xFF;
   case ELF::R_RISCV_ADD8:
     return (A + (S + RA)) & 0xFF;
   case ELF::R_RISCV_SUB8:
     return (A - (S + RA)) & 0xFF;
+  case ELF::R_RISCV_SET16:
+    return (S + RA) & 0xFFFF;
   case ELF::R_RISCV_ADD16:
     return (A + (S + RA)) & 0xFFFF;
   case ELF::R_RISCV_SUB16:
     return (A - (S + RA)) & 0xFFFF;
+  case ELF::R_RISCV_SET32:
+    return (S + RA) & 0xFFFFFFFF;
   case ELF::R_RISCV_ADD32:
     return (A + (S + RA)) & 0xFFFFFFFF;
   case ELF::R_RISCV_SUB32:
     return (A - (S + RA)) & 0xFFFFFFFF;
   case ELF::R_RISCV_ADD64:
     return (A + (S + RA));
   case ELF::R_RISCV_SUB64:
     return (A - (S + RA));

llvm/test/MC/RISCV/cfi-advance.s

 # RUN: llvm-mc -filetype=obj -triple riscv32 %s -o %t.o  
 # RUN: llvm-readobj -r %t.o | FileCheck -check-prefix=CHECK %s
 # RUN: llvm-dwarfdump --debug-frame %t.o 2>&1 \
 # RUN:     | FileCheck -check-prefix=CHECK-DWARFDUMP %s
 
 # CHECK: 0x26 R_RISCV_SET8 - 0x0
-# CHECK-DWARFDUMP:   DW_CFA_advance_loc1
-# CHECK-DWARFDUMP-NEXT:  DW_CFA_def_cfa_offset
+# CHECK-NEXT: 0x26 R_RISCV_SUB8 - 0x0
+# CHECK-NEXT: 0x2A R_RISCV_SET16 - 0x0
+# CHECK-NEXT: 0x2A R_RISCV_SUB16 - 0x0
+# CHECK-NEXT: 0x2F R_RISCV_SET32 - 0x0
+# CHECK-DWARFDUMP: DW_CFA_advance_loc1
+# CHECK-DWARFDUMP-NEXT: DW_CFA_def_cfa_offset
+# CHECK-DWARFDUMP-NEXT: DW_CFA_advance_loc2
+# CHECK-DWARFDUMP-NEXT: DW_CFA_def_cfa_offset
+# CHECK-DWARFDUMP-NEXT: DW_CFA_advance_loc4
+# CHECK-DWARFDUMP-NEXT: DW_CFA_def_cfa_offset
         .text
         .globl  test                            # -- Begin function test
         .p2align        1
         .type   test,@function
 test:
         .cfi_startproc
         nop
         .zero 100, 0x90
         .cfi_def_cfa_offset 8
         nop
+        .zero 255, 0x90
+        .cfi_def_cfa_offset 8
+        nop
+        .zero 65535, 0x90
+        .cfi_def_cfa_offset 8
+        nop
         .cfi_endproc