Index: lld/ELF/Arch/SPARCV9.cpp
===================================================================
--- lld/ELF/Arch/SPARCV9.cpp
+++ lld/ELF/Arch/SPARCV9.cpp
@@ -25,10 +25,13 @@
   SPARCV9();
   RelExpr getRelExpr(RelType type, const Symbol &s,
                      const uint8_t *loc) const override;
+  void writeGotHeader(uint8_t *buf) const override;
   void writePlt(uint8_t *buf, const Symbol &sym,
                 uint64_t pltEntryAddr) const override;
   void relocate(uint8_t *loc, const Relocation &rel,
                 uint64_t val) const override;
+  void relaxTlsIeToLe(uint8_t *loc, const Relocation &,
+                      uint64_t val) const override;
 };
 } // namespace
 
@@ -42,9 +45,19 @@
   pltEntrySize = 32;
   pltHeaderSize = 4 * pltEntrySize;
 
+  tlsGotRel = R_SPARC_TLS_TPOFF64;
+
   defaultCommonPageSize = 8192;
   defaultMaxPageSize = 0x100000;
   defaultImageBase = 0x100000;
+
+  // .got[0] = _DYNAMIC
+  gotBaseSymInGotPlt = false;
+  gotHeaderEntriesNum = 1;
+}
+
+void SPARCV9::writeGotHeader(uint8_t *buf) const {
+  write32(buf, mainPart->dynamic->getVA());
 }
 
 RelExpr SPARCV9::getRelExpr(RelType type, const Symbol &s,
@@ -79,6 +92,11 @@
   case R_SPARC_TLS_LE_HIX22:
   case R_SPARC_TLS_LE_LOX10:
     return R_TPREL;
+  case R_SPARC_TLS_IE_HI22:
+  case R_SPARC_TLS_IE_LO10:
+  case R_SPARC_TLS_IE_LDX:
+  case R_SPARC_TLS_IE_ADD:
+    return R_GOT_OFF;
   default:
     error(getErrorLocation(loc) + "unknown relocation (" + Twine(type) +
           ") against symbol " + toString(s));
@@ -111,6 +129,7 @@
     checkUInt(loc, val, 22, rel);
     write32be(loc, (read32be(loc) & ~0x003fffff) | (val & 0x003fffff));
     break;
+  case R_SPARC_TLS_IE_HI22:
   case R_SPARC_GOT22:
   case R_SPARC_PC22:
   case R_SPARC_LM22:
@@ -132,6 +151,7 @@
     // T-simm10
     write32be(loc, (read32be(loc) & ~0x000003ff) | (val & 0x000003ff));
     break;
+  case R_SPARC_TLS_IE_LO10:
   case R_SPARC_LO10:
     // T-simm13
     write32be(loc, (read32be(loc) & ~0x00001fff) | (val & 0x000003ff));
@@ -171,11 +191,36 @@
     // T-simm13
     write32be(loc, (read32be(loc) & ~0x00001fff) | (val & 0x000003ff) | 0x1C00);
     break;
+  case R_SPARC_TLS_IE_LDX:
+  case R_SPARC_TLS_IE_ADD:
+    break;
   default:
     llvm_unreachable("unknown relocation");
   }
 }
 
+void SPARCV9::relaxTlsIeToLe(uint8_t *loc, const Relocation &rel,
+                             uint64_t val) const {
+  switch (rel.type) {
+  case R_SPARC_TLS_IE_ADD:
+    return;
+  case R_SPARC_TLS_IE_LDX:
+    // call ldx [%r1 + %r2], %r3 -> nop
+    write32(loc, 0x01000000);
+    return;
+  case R_SPARC_TLS_IE_HI22:
+    relocateNoSym(loc, R_SPARC_TLS_LE_HIX22, val);
+    return;
+  case R_SPARC_TLS_IE_LO10:
+    // or %r1, %tie_lo10(sym), %r2 -> xor %r1, %tle_lox10(sym), %r2
+    write32be(loc, (read32be(loc) & ~0x01f80000) | 0x180000);
+    relocateNoSym(loc, R_SPARC_TLS_LE_LOX10, val);
+    return;
+  default:
+    llvm_unreachable("unsupported relocation for TLS IE to LE relaxation");
+  }
+}
+
 void SPARCV9::writePlt(uint8_t *buf, const Symbol & /*sym*/,
                        uint64_t pltEntryAddr) const {
   const uint8_t pltData[] = {
Index: lld/ELF/Driver.cpp
===================================================================
--- lld/ELF/Driver.cpp
+++ lld/ELF/Driver.cpp
@@ -926,7 +926,7 @@
   // Otherwise use the psABI defined relocation entry format.
   uint16_t m = config->emachine;
   return m == EM_AARCH64 || m == EM_AMDGPU || m == EM_HEXAGON || m == EM_PPC ||
-         m == EM_PPC64 || m == EM_RISCV || m == EM_X86_64;
+         m == EM_PPC64 || m == EM_RISCV || m == EM_SPARCV9 || m == EM_X86_64;
 }
 
 static void parseClangOption(StringRef opt, const Twine &msg) {
Index: lld/test/ELF/sparcv9-tls-ie.s
===================================================================
--- /dev/null
+++ lld/test/ELF/sparcv9-tls-ie.s
@@ -0,0 +1,33 @@
+# REQUIRES: sparc
+# RUN: llvm-mc -filetype=obj -triple=sparcv9 %s -o %t.o
+# RUN: ld.lld %t.o -o %t
+# RUN: ld.lld -shared %t.o -o %t.so
+# RUN: llvm-readobj -r %t.so | FileCheck --check-prefix=RELOC %s
+# RUN: llvm-objdump -d --no-show-raw-insn %t.so | FileCheck %s
+# RUN: llvm-objdump -d --no-show-raw-insn %t | FileCheck --check-prefix=RELAX %s
+
+# CHECK:      sethi 0, %o0
+# CHECK-NEXT: or %o0, 8, %o0
+# CHECK-NEXT: ldx [%l7+%o0], %o0
+# CHECK-NEXT: add %g7, %o0, %o0
+
+# IE -> LE Relaxation
+
+# RELAX:      sethi 1, %o0
+# RELAX-NEXT: xor %o0, -2, %o0
+# RELAX-NEXT: nop
+# RELAX-NEXT: add %g7, %o0, %o0
+sethi %tie_hi22(a), %o0
+or %o0, %tie_lo10(a), %o0
+ldx [%l7 + %o0], %o0, %tie_ldx(a)
+add %g7, %o0, %o0, %tie_add(a)
+
+.section .tbss
+.globl a
+a:
+.zero 1024+2
+b:
+
+# RELOC: .rela.dyn {
+# RELOC-NEXT: R_SPARC_TLS_TPOFF64 a 0x0
+# RELOC-NEXT: }