Revert r244308 since it's introducing test regressions on Linux:

 - TestLldbGdbServer.py both clang & gcc, i386 and x86_64
 - TestConstVariables.py gcc, i386 and x86_64
 - 112 failures clang, i386

llvm-svn: 244514

14 files changed, 281 insertions, 1109 deletions

diff --git a/lldb/source/Plugins/Process/Linux/NativeRegisterContextLinux.cpp b/lldb/source/Plugins/Process/Linux/NativeRegisterContextLinux.cpp
index df0a008ff5f..9628b4e6f72 100644
--- a/lldb/source/Plugins/Process/Linux/NativeRegisterContextLinux.cpp
+++ b/lldb/source/Plugins/Process/Linux/NativeRegisterContextLinux.cpp
@@ -136,7 +136,7 @@ NativeRegisterContextLinux::ReadFPR()
 {
     void* buf = GetFPRBuffer();
     if (!buf)
-        return Error("FPR buffer is NULL");
+        return Error("GPR buffer is NULL");
     size_t buf_size = GetFPRSize();
 
     return DoReadFPR(buf, buf_size);
@@ -147,7 +147,7 @@ NativeRegisterContextLinux::WriteFPR()
 {
     void* buf = GetFPRBuffer();
     if (!buf)
-        return Error("FPR buffer is NULL");
+        return Error("GPR buffer is NULL");
     size_t buf_size = GetFPRSize();
 
     return DoWriteFPR(buf, buf_size);
diff --git a/lldb/source/Plugins/Process/Linux/NativeRegisterContextLinux_mips64.cpp b/lldb/source/Plugins/Process/Linux/NativeRegisterContextLinux_mips64.cpp
index 4be535f8af9..917f1351563 100644
--- a/lldb/source/Plugins/Process/Linux/NativeRegisterContextLinux_mips64.cpp
+++ b/lldb/source/Plugins/Process/Linux/NativeRegisterContextLinux_mips64.cpp
@@ -25,10 +25,6 @@
 #include "Plugins/Process/Linux/Procfs.h"
 #include "Plugins/Process/Utility/RegisterContextLinux_mips64.h"
 #include "Plugins/Process/Utility/RegisterContextLinux_mips.h"
-#define NT_MIPS_MSA 0x600
-#define CONFIG5_FRE (1 << 8)
-#define SR_FR (1 << 26)
-#define NUM_REGISTERS 32
 
 #include <sys/ptrace.h>
 #include <asm/ptrace.h>
@@ -122,13 +118,12 @@ namespace
         gpr_sp_mips,
         gpr_r30_mips,
         gpr_ra_mips,
-        gpr_sr_mips,
         gpr_mullo_mips,
         gpr_mulhi_mips,
+        gpr_pc_mips,
         gpr_badvaddr_mips,
+        gpr_sr_mips,
         gpr_cause_mips,
-        gpr_pc_mips,
-        gpr_config5_mips,
         LLDB_INVALID_REGNUM     // register sets need to end with this flag
     };
 
@@ -173,60 +168,12 @@ namespace
         fpr_f31_mips,
         fpr_fcsr_mips,
         fpr_fir_mips,
-        fpr_config5_mips,
         LLDB_INVALID_REGNUM     // register sets need to end with this flag
     };
 
     static_assert((sizeof(g_fp_regnums_mips) / sizeof(g_fp_regnums_mips[0])) - 1 == k_num_fpr_registers_mips,
                   "g_fp_regnums_mips has wrong number of register infos");
 
-    // mips MSA registers.
-    const uint32_t
-    g_msa_regnums_mips[] =
-    {
-        msa_w0_mips,
-        msa_w1_mips,
-        msa_w2_mips,
-        msa_w3_mips,
-        msa_w4_mips,
-        msa_w5_mips,
-        msa_w6_mips,
-        msa_w7_mips,
-        msa_w8_mips,
-        msa_w9_mips,
-        msa_w10_mips,
-        msa_w11_mips,
-        msa_w12_mips,
-        msa_w13_mips,
-        msa_w14_mips,
-        msa_w15_mips,
-        msa_w16_mips,
-        msa_w17_mips,
-        msa_w18_mips,
-        msa_w19_mips,
-        msa_w20_mips,
-        msa_w21_mips,
-        msa_w22_mips,
-        msa_w23_mips,
-        msa_w24_mips,
-        msa_w25_mips,
-        msa_w26_mips,
-        msa_w27_mips,
-        msa_w28_mips,
-        msa_w29_mips,
-        msa_w30_mips,
-        msa_w31_mips,
-        msa_fcsr_mips,
-        msa_fir_mips,
-        msa_mcsr_mips,
-        msa_mir_mips,
-        msa_config5_mips,
-        LLDB_INVALID_REGNUM     // register sets need to end with this flag
-    };
-
-    static_assert((sizeof(g_msa_regnums_mips) / sizeof(g_msa_regnums_mips[0])) - 1 == k_num_msa_registers_mips,
-                  "g_msa_regnums_mips has wrong number of register infos");
-
     // mips64 general purpose registers.
     const uint32_t
     g_gp_regnums_mips64[] =
@@ -263,13 +210,14 @@ namespace
         gpr_sp_mips64,
         gpr_r30_mips64,
         gpr_ra_mips64,
-        gpr_sr_mips64,
         gpr_mullo_mips64,
         gpr_mulhi_mips64,
+        gpr_pc_mips64,
         gpr_badvaddr_mips64,
+        gpr_sr_mips64,
         gpr_cause_mips64,
-        gpr_pc_mips64,
-        gpr_config5_mips64,
+        gpr_ic_mips64,
+        gpr_dummy_mips64,
         LLDB_INVALID_REGNUM     // register sets need to end with this flag
     };
 
@@ -314,64 +262,16 @@ namespace
         fpr_f31_mips64,
         fpr_fcsr_mips64,
         fpr_fir_mips64,
-        fpr_config5_mips64,
         LLDB_INVALID_REGNUM     // register sets need to end with this flag
     };
 
     static_assert((sizeof(g_fp_regnums_mips64) / sizeof(g_fp_regnums_mips64[0])) - 1 == k_num_fpr_registers_mips64,
                   "g_fp_regnums_mips64 has wrong number of register infos");
 
-    // mips64 MSA registers.
-    const uint32_t
-    g_msa_regnums_mips64[] =
-    {
-        msa_w0_mips64,
-        msa_w1_mips64,
-        msa_w2_mips64,
-        msa_w3_mips64,
-        msa_w4_mips64,
-        msa_w5_mips64,
-        msa_w6_mips64,
-        msa_w7_mips64,
-        msa_w8_mips64,
-        msa_w9_mips64,
-        msa_w10_mips64,
-        msa_w11_mips64,
-        msa_w12_mips64,
-        msa_w13_mips64,
-        msa_w14_mips64,
-        msa_w15_mips64,
-        msa_w16_mips64,
-        msa_w17_mips64,
-        msa_w18_mips64,
-        msa_w19_mips64,
-        msa_w20_mips64,
-        msa_w21_mips64,
-        msa_w22_mips64,
-        msa_w23_mips64,
-        msa_w24_mips64,
-        msa_w25_mips64,
-        msa_w26_mips64,
-        msa_w27_mips64,
-        msa_w28_mips64,
-        msa_w29_mips64,
-        msa_w30_mips64,
-        msa_w31_mips64,
-        msa_fcsr_mips64,
-        msa_fir_mips64,
-        msa_mcsr_mips64,
-        msa_mir_mips64,
-        msa_config5_mips64,
-        LLDB_INVALID_REGNUM     // register sets need to end with this flag
-    };
-
-    static_assert((sizeof(g_msa_regnums_mips64) / sizeof(g_msa_regnums_mips64[0])) - 1 == k_num_msa_registers_mips64,
-                  "g_msa_regnums_mips64 has wrong number of register infos");
-
     // Number of register sets provided by this context.
     enum
     {
-        k_num_register_sets = 3
+        k_num_register_sets = 2
     };
 
     // Register sets for mips.
@@ -379,8 +279,7 @@ namespace
     g_reg_sets_mips[k_num_register_sets] =
     {
         { "General Purpose Registers",  "gpr", k_num_gpr_registers_mips, g_gp_regnums_mips },
-        { "Floating Point Registers",   "fpu", k_num_fpr_registers_mips, g_fp_regnums_mips },
-        { "MSA Registers",              "msa", k_num_msa_registers_mips, g_msa_regnums_mips }
+        { "Floating Point Registers",   "fpu", k_num_fpr_registers_mips, g_fp_regnums_mips }
     };
 
     // Register sets for mips64.
@@ -388,8 +287,7 @@ namespace
     g_reg_sets_mips64[k_num_register_sets] =
     {
         { "General Purpose Registers",  "gpr", k_num_gpr_registers_mips64, g_gp_regnums_mips64 },
-        { "Floating Point Registers",   "fpu", k_num_fpr_registers_mips64, g_fp_regnums_mips64 },
-        { "MSA Registers",              "msa", k_num_msa_registers_mips64, g_msa_regnums_mips64 },
+        { "Floating Point Registers",   "fpu", k_num_fpr_registers_mips64, g_fp_regnums_mips64 }
     };
 
 } // end of anonymous namespace
@@ -402,7 +300,7 @@ NativeRegisterContextLinux::CreateHostNativeRegisterContextLinux(const ArchSpec&
     return new NativeRegisterContextLinux_mips64(target_arch, native_thread, concrete_frame_idx);
 }
 
-#define REG_CONTEXT_SIZE (GetRegisterInfoInterface ().GetGPRSize () + sizeof(FPR_linux_mips) + sizeof(MSA_linux_mips))
+#define REG_CONTEXT_SIZE (GetRegisterInfoInterface ().GetGPRSize () + sizeof(FPR_mips))
 
 // ----------------------------------------------------------------------------
 // NativeRegisterContextLinux_mips64 members.
@@ -440,8 +338,6 @@ NativeRegisterContextLinux_mips64::NativeRegisterContextLinux_mips64 (const Arch
             m_reg_info.last_gpr             = k_last_gpr_mips;
             m_reg_info.first_fpr            = k_first_fpr_mips;
             m_reg_info.last_fpr             = k_last_fpr_mips;
-            m_reg_info.first_msa            = k_first_msa_mips;
-            m_reg_info.last_msa             = k_last_msa_mips;
             break;
         case llvm::Triple::mips64:
         case llvm::Triple::mips64el:
@@ -451,27 +347,18 @@ NativeRegisterContextLinux_mips64::NativeRegisterContextLinux_mips64 (const Arch
             m_reg_info.last_gpr             = k_last_gpr_mips64;
             m_reg_info.first_fpr            = k_first_fpr_mips64;
             m_reg_info.last_fpr             = k_last_fpr_mips64;
-            m_reg_info.first_msa            = k_first_msa_mips64;
-            m_reg_info.last_msa             = k_last_msa_mips64;
             break;
         default:
             assert(false && "Unhandled target architecture.");
             break;
     }
 
-    // Initialize m_iovec to point to the buffer and buffer size
-    // using the conventions of Berkeley style UIO structures, as required
-    // by PTRACE extensions.
-    m_iovec.iov_base = &m_msa;
-    m_iovec.iov_len = sizeof(MSA_linux_mips);
+    // Clear out the FPR state.
+    ::memset(&m_fpr, 0, sizeof(FPR_mips));
 
     // init h/w watchpoint addr map
     for (int index = 0;index <= MAX_NUM_WP; index++)
         hw_addr_map[index] = LLDB_INVALID_ADDRESS;
-
-    ::memset(&m_gpr, 0, sizeof(GPR_linux_mips));
-    ::memset(&m_fpr, 0, sizeof(FPR_linux_mips));
-    ::memset(&m_msa, 0, sizeof(MSA_linux_mips));
 }
 
 uint32_t
@@ -573,38 +460,16 @@ NativeRegisterContextLinux_mips64::ReadRegister (const RegisterInfo *reg_info, R
         return error;
     }
 
-    if (IsMSA(reg) && !IsMSAAvailable())
-    {
-        error.SetErrorString ("MSA not available on this processor");
-        return error;
-    }
-
-    if (IsMSA(reg) || IsFPR(reg))
+    if (IsFPR(reg))
     {
-        uint8_t *src;
-        type128 int128;
-
-        error = ReadCP1();
-
+        error = ReadFPR();
         if (!error.Success())
         {
-            error.SetErrorString ("failed to read co-processor 1 register");
+            error.SetErrorString ("failed to read floating point register");
             return error;
         }
-
-        if (IsFPR(reg))
-        {
-            assert (reg_info->byte_offset < sizeof(UserArea));
-            src = (uint8_t *)&m_fpr + reg_info->byte_offset - (sizeof(m_gpr));
-        }
-        else
-        {
-            assert (reg_info->byte_offset < sizeof(UserArea));
-            src = (uint8_t *)&m_msa + reg_info->byte_offset - (sizeof(m_gpr) + sizeof(m_fpr));
-        }
-        int128.x[0] = *(uint64_t *)src;
-        int128.x[1] = *(uint64_t *)(src + 8); 
-        llvm::APInt rhs = llvm::APInt(128, 2, int128.x);
+        assert (reg_info->byte_offset < sizeof(FPR_mips));
+        uint8_t *src = (uint8_t *)&m_fpr + reg_info->byte_offset;
         switch (reg_info->byte_size)
         {
             case 4:
@@ -613,9 +478,6 @@ NativeRegisterContextLinux_mips64::ReadRegister (const RegisterInfo *reg_info, R
             case 8:
                 reg_value.SetUInt64(*(uint64_t *)src);
                 break;
-            case 16:
-                reg_value.SetUInt128(rhs);
-                break;
             default:
                 assert(false && "Unhandled data size.");
                 error.SetErrorStringWithFormat ("unhandled byte size: %" PRIu32, reg_info->byte_size);
@@ -649,32 +511,10 @@ NativeRegisterContextLinux_mips64::WriteRegister (const RegisterInfo *reg_info,
     if (reg_index == LLDB_INVALID_REGNUM)
         return Error ("no lldb regnum for %s", reg_info && reg_info->name ? reg_info->name : "<unknown register>");
 
-    if (IsMSA(reg_index) && !IsMSAAvailable())
-    {
-        error.SetErrorString ("MSA not available on this processor");
-        return error;
-    }
-
-    if (IsFPR(reg_index) || IsMSA(reg_index))
+    if (IsFPR(reg_index))
     {
-        uint8_t *dst;
-        const uint64_t *src;
-
-        // Initialise the FP and MSA buffers by reading all co-processor 1 registers
-        ReadCP1();
-
-        if (IsFPR(reg_index))
-        {
-            assert (reg_info->byte_offset < sizeof(UserArea));
-            dst = (uint8_t *)&m_fpr + reg_info->byte_offset - (sizeof(m_gpr));
-        }
-        else
-        {
-            assert (reg_info->byte_offset < sizeof(UserArea));
-            dst = (uint8_t *)&m_msa + reg_info->byte_offset - (sizeof(m_gpr) + sizeof(m_fpr));
-        }
-        llvm::APInt lhs;
-        llvm::APInt fail_value = llvm::APInt::getMaxValue(128);
+        assert (reg_info->byte_offset < sizeof(FPR_mips));
+        uint8_t *dst = (uint8_t *)&m_fpr + reg_info->byte_offset;
         switch (reg_info->byte_size)
         {
             case 4:
@@ -683,21 +523,15 @@ NativeRegisterContextLinux_mips64::WriteRegister (const RegisterInfo *reg_info,
             case 8:
                 *(uint64_t *)dst = reg_value.GetAsUInt64();
                 break;
-            case 16:
-                lhs = reg_value.GetAsUInt128(fail_value);
-                src = lhs.getRawData();
-                *(uint64_t *)dst = *src; 
-                *(uint64_t *)(dst + 8) = *(src + 1);
-                break;
             default:
                 assert(false && "Unhandled data size.");
                 error.SetErrorStringWithFormat ("unhandled byte size: %" PRIu32, reg_info->byte_size);
                 break;
         }
-        error = WriteCP1();
+        error = WriteFPR();
         if (!error.Success())
         {
-            error.SetErrorString ("failed to write co-processor 1 register");
+            error.SetErrorString ("failed to write floating point register");
             return error;
         }
     }
@@ -728,10 +562,10 @@ NativeRegisterContextLinux_mips64::ReadAllRegisterValues (lldb::DataBufferSP &da
         return error;
     }
 
-    error = ReadCP1();
+    error = ReadFPR();
     if (!error.Success())
     {
-        error.SetErrorString ("ReadCP1() failed");
+        error.SetErrorString ("ReadFPR() failed");
         return error;
     }
 
@@ -742,13 +576,10 @@ NativeRegisterContextLinux_mips64::ReadAllRegisterValues (lldb::DataBufferSP &da
         return error;
     }
 
-    ::memcpy (dst, &m_gpr, GetRegisterInfoInterface ().GetGPRSize ());
+    ::memcpy (dst, &m_gpr_mips64, GetRegisterInfoInterface ().GetGPRSize ());
     dst += GetRegisterInfoInterface ().GetGPRSize ();
 
-    ::memcpy (dst, &m_fpr, GetFPRSize ());
-    dst += GetFPRSize ();
-
-    ::memcpy (dst, &m_msa, sizeof(MSA_linux_mips));
+    ::memcpy (dst, &m_fpr, sizeof(FPR_mips));
 
     return error;
 }
@@ -777,14 +608,10 @@ NativeRegisterContextLinux_mips64::WriteAllRegisterValues (const lldb::DataBuffe
         error.SetErrorStringWithFormat ("NativeRegisterContextLinux_mips64::%s DataBuffer::GetBytes() returned a null pointer", __FUNCTION__);
         return error;
     }
-
-    ::memcpy (&m_gpr, src, GetRegisterInfoInterface ().GetGPRSize ());
+    ::memcpy (&m_gpr_mips64, src, GetRegisterInfoInterface ().GetGPRSize ());
     src += GetRegisterInfoInterface ().GetGPRSize ();
 
-    ::memcpy (&m_fpr, src, GetFPRSize ());
-    src += GetFPRSize ();
-
-    ::memcpy (&m_msa, src, sizeof(MSA_linux_mips));
+    ::memcpy (&m_fpr, src, sizeof(FPR_mips));
 
     error = WriteGPR();
     if (!error.Success())
@@ -793,10 +620,10 @@ NativeRegisterContextLinux_mips64::WriteAllRegisterValues (const lldb::DataBuffe
         return error;
     }
 
-    error = WriteCP1();
+    error = WriteFPR();
     if (!error.Success())
     {
-        error.SetErrorStringWithFormat ("NativeRegisterContextLinux_mips64::%s WriteCP1() failed", __FUNCTION__);
+        error.SetErrorStringWithFormat ("NativeRegisterContextLinux_mips64::%s WriteFPR() failed", __FUNCTION__);
         return error;
     }
 
@@ -804,47 +631,22 @@ NativeRegisterContextLinux_mips64::WriteAllRegisterValues (const lldb::DataBuffe
 }
 
 Error
-NativeRegisterContextLinux_mips64::ReadCP1()
+NativeRegisterContextLinux_mips64::ReadFPR()
 {
-    Error error;
-
-    uint8_t *src, *dst;
+    void* buf = GetFPRBuffer();
+    if (!buf)
+        return Error("FPR buffer is NULL");
 
-    lldb::ByteOrder byte_order = GetByteOrder();
+    Error error = NativeRegisterContextLinux::ReadFPR();
 
-    uint32_t IsBigEndian = (byte_order == lldb::eByteOrderBig);
-
-    if (IsMSAAvailable())
+    if (IsFR0())
     {
-        error = NativeRegisterContextLinux::ReadRegisterSet(&m_iovec, sizeof(MSA_linux_mips), NT_MIPS_MSA);
-        src = (uint8_t *)&m_msa + (IsBigEndian * 8);
-        dst = (uint8_t *)&m_fpr;
-        for ( int i = 0; i < NUM_REGISTERS; i++)
-        {
-            // Copy fp values from msa buffer fetched via ptrace
-            *(uint64_t *) dst = *(uint64_t *) src;
-            src = src + 16;
-            dst = dst + 8;
-        }
-        m_fpr.fir = m_msa.fir;
-        m_fpr.fcsr = m_msa.fcsr;
-        m_fpr.config5 = m_msa.config5;
-    }
-    else
-    {
-        error = NativeRegisterContextLinux::ReadFPR();
-    }
-
-    if (IsFR0() || IsFRE())
-    {
-         src = (uint8_t *)&m_fpr + 4 + (IsBigEndian * 4);
-         dst = (uint8_t *)&m_fpr + 8 + (IsBigEndian * 4);
-         for (int i = 0; i < (NUM_REGISTERS / 2); i++)
+         for (int i = 0; i < 16; i++)
          {
               // copy odd single from top of neighbouring even double
+              uint8_t * src = (uint8_t *)buf + 4 + (i * 16);
+              uint8_t * dst = (uint8_t *)buf + 8 + (i * 16);
               *(uint32_t *) dst = *(uint32_t *) src;
-              src = src + 16;
-              dst = dst + 16;
          }
     }
 
@@ -852,77 +654,37 @@ NativeRegisterContextLinux_mips64::ReadCP1()
 }
 
 Error
-NativeRegisterContextLinux_mips64::WriteCP1()
+NativeRegisterContextLinux_mips64::WriteFPR()
 {
-    Error error;
-
-    uint8_t *src, *dst;
-
-    lldb::ByteOrder byte_order = GetByteOrder();
-
-    uint32_t IsBigEndian = (byte_order == lldb::eByteOrderBig);
+    void* buf = GetFPRBuffer();
+    if (!buf)
+        return Error("FPR buffer is NULL");
 
-    if (IsFR0() || IsFRE())
+    if (IsFR0())
     {
-        src = (uint8_t *)&m_fpr + 8 + (IsBigEndian * 4);
-        dst = (uint8_t *)&m_fpr + 4 + (IsBigEndian * 4);
-        for (int i = 0; i < (NUM_REGISTERS / 2); i++)
-        {
+         for (int i = 0; i < 16; i++)
+         {
              // copy odd single to top of neighbouring even double
+             uint8_t * src = (uint8_t *)buf + 8 + (i * 16);
+             uint8_t * dst = (uint8_t *)buf + 4 + (i * 16);
              *(uint32_t *) dst = *(uint32_t *) src;
-             src = src + 16;
-             dst = dst + 16;
-        }
-    }
-
-    if (IsMSAAvailable())
-    {
-        dst = (uint8_t *)&m_msa + (IsBigEndian * 8);
-        src = (uint8_t *)&m_fpr;
-        for (int i = 0; i < NUM_REGISTERS; i++)
-        {
-            // Copy fp values to msa buffer for ptrace
-            *(uint64_t *) dst = *(uint64_t *) src;
-            dst = dst + 16;
-            src = src + 8;
-        }
-        m_msa.fir = m_fpr.fir;
-        m_msa.fcsr = m_fpr.fcsr;
-        m_msa.config5 = m_fpr.config5;
-        error = NativeRegisterContextLinux::WriteRegisterSet(&m_iovec, sizeof(MSA_linux_mips), NT_MIPS_MSA);
-    }
-    else
-    {
-        error = NativeRegisterContextLinux::WriteFPR();
+         }
     }
 
-    return error;
+    return NativeRegisterContextLinux::WriteFPR();
 }
 
 bool
 NativeRegisterContextLinux_mips64::IsFR0()
 {
-    const RegisterInfo *const reg_info_p = GetRegisterInfoAtIndex (gpr_sr_mips64);
+    const RegisterInfo *const reg_info_p = GetRegisterInfoAtIndex (36); // Status Register is at index 36 of the register array
 
     RegisterValue reg_value;
     ReadRegister (reg_info_p, reg_value);
 
     uint64_t value = reg_value.GetAsUInt64();
 
-    return (!(value & SR_FR));
-}
-
-bool
-NativeRegisterContextLinux_mips64::IsFRE()
-{
-    const RegisterInfo *const reg_info_p = GetRegisterInfoAtIndex (gpr_config5_mips64);
-
-    RegisterValue reg_value;
-    ReadRegister (reg_info_p, reg_value);
-
-    uint64_t config5 = reg_value.GetAsUInt64();
-
-    return (config5 & CONFIG5_FRE);
+    return (!(value & 0x4000000));
 }
 
 bool
@@ -1107,25 +869,6 @@ GetVacantWatchIndex (struct pt_watch_regs *regs, lldb::addr_t addr, uint32_t siz
     return 0;
 }
 
-bool
-NativeRegisterContextLinux_mips64::IsMSA(uint32_t reg_index) const
-{
-    return (m_reg_info.first_msa <= reg_index && reg_index <= m_reg_info.last_msa);
-}
-
-bool
-NativeRegisterContextLinux_mips64::IsMSAAvailable()
-{
-    Error error = NativeRegisterContextLinux::ReadRegisterSet(&m_msa, sizeof(MSA_linux_mips), NT_MIPS_MSA);
-
-    if (error.Success() && m_msa.mir)
-    {
-        return true;
-    }
-
-    return false;
-}
-
 Error
 NativeRegisterContextLinux_mips64::IsWatchpointHit (uint32_t wp_index, bool &is_hit)
 {
@@ -1285,14 +1028,13 @@ NativeRegisterContextLinux_mips64::DoReadRegisterValue(uint32_t offset,
                                                        uint32_t size,
                                                        RegisterValue &value)
 {
-    GPR_linux_mips regs;
-    ::memset(&regs, 0, sizeof(GPR_linux_mips));
+    elf_gregset_t regs;
     Error error = NativeProcessLinux::PtraceWrapper(PTRACE_GETREGS, m_thread.GetID(), NULL, &regs, sizeof regs);
     if (error.Success())
     {
         lldb_private::ArchSpec arch;
         if (m_thread.GetProcess()->GetArchitecture(arch))
-            value.SetBytes((void *)(((unsigned char *)(&regs)) + offset), 8, arch.GetByteOrder());
+            value.SetBytes((void *)(((unsigned char *)(regs)) + offset), 8, arch.GetByteOrder());
         else
             error.SetErrorString("failed to get architecture");
     }
diff --git a/lldb/source/Plugins/Process/Linux/NativeRegisterContextLinux_mips64.h b/lldb/source/Plugins/Process/Linux/NativeRegisterContextLinux_mips64.h
index 9f21bef258f..9a2e89f5bf2 100644
--- a/lldb/source/Plugins/Process/Linux/NativeRegisterContextLinux_mips64.h
+++ b/lldb/source/Plugins/Process/Linux/NativeRegisterContextLinux_mips64.h
@@ -13,8 +13,8 @@
 #define lldb_NativeRegisterContextLinux_mips64_h
 
 #include "Plugins/Process/Linux/NativeRegisterContextLinux.h"
-#include "Plugins/Process/Utility/RegisterContext_mips.h"
-#include "Plugins/Process/Utility/lldb-mips-linux-register-enums.h"
+#include "Plugins/Process/Utility/RegisterContext_mips64.h"
+#include "Plugins/Process/Utility/lldb-mips64-register-enums.h"
 
 #define MAX_NUM_WP 8
 
@@ -52,10 +52,10 @@ namespace process_linux {
         WriteAllRegisterValues (const lldb::DataBufferSP &data_sp) override;
 
         Error
-        ReadCP1();
+        ReadFPR() override;
 
         Error
-        WriteCP1();
+        WriteFPR() override;
 
         Error
         IsWatchpointHit (uint32_t wp_index, bool &is_hit) override;
@@ -108,25 +108,16 @@ namespace process_linux {
         IsFR0();
 
         bool
-        IsFRE();
-
-        bool
         IsFPR(uint32_t reg_index) const;
 
-        bool
-        IsMSA(uint32_t reg_index) const;
-
-        bool
-        IsMSAAvailable();
-
         void*
-        GetGPRBuffer() override { return &m_gpr; }
+        GetGPRBuffer() override { return &m_gpr_mips64; }
 
         void*
         GetFPRBuffer() override { return &m_fpr; }
 
         size_t
-        GetFPRSize() override { return sizeof(FPR_linux_mips); }
+        GetFPRSize() override { return sizeof(FPR_mips); }
 
     private:
         // Info about register ranges.
@@ -139,21 +130,15 @@ namespace process_linux {
             uint32_t last_gpr;
             uint32_t first_fpr;
             uint32_t last_fpr;
-            uint32_t first_msa;
-            uint32_t last_msa;
         };
 
         RegInfo m_reg_info;
 
-        GPR_linux_mips m_gpr;
+        uint64_t m_gpr_mips64[k_num_gpr_registers_mips64];
 
-        FPR_linux_mips m_fpr;
-
-        MSA_linux_mips m_msa;
+        FPR_mips m_fpr;
 
         lldb::addr_t hw_addr_map[MAX_NUM_WP];
-
-        IOVEC_mips m_iovec;
     };
 
 } // namespace process_linux
diff --git a/lldb/source/Plugins/Process/Utility/RegisterContextFreeBSD_mips64.cpp b/lldb/source/Plugins/Process/Utility/RegisterContextFreeBSD_mips64.cpp
index 53fa4169bff..c31b0ee7de5 100644
--- a/lldb/source/Plugins/Process/Utility/RegisterContextFreeBSD_mips64.cpp
+++ b/lldb/source/Plugins/Process/Utility/RegisterContextFreeBSD_mips64.cpp
@@ -57,7 +57,7 @@ typedef struct _GPR
     uint64_t pc;
     uint64_t ic;
     uint64_t dummy;
-} GPR_freebsd_mips;
+} GPR;
 
 //---------------------------------------------------------------------------
 // Include RegisterInfos_mips64 to declare our g_register_infos_mips64 structure.
@@ -74,7 +74,7 @@ RegisterContextFreeBSD_mips64::RegisterContextFreeBSD_mips64(const ArchSpec &tar
 size_t
 RegisterContextFreeBSD_mips64::GetGPRSize() const
 {
-    return sizeof(GPR_freebsd_mips);
+    return sizeof(GPR);
 }
 
 const RegisterInfo *
diff --git a/lldb/source/Plugins/Process/Utility/RegisterContextLinux_mips.cpp b/lldb/source/Plugins/Process/Utility/RegisterContextLinux_mips.cpp
index cf1e7f5080f..948437f5128 100644
--- a/lldb/source/Plugins/Process/Utility/RegisterContextLinux_mips.cpp
+++ b/lldb/source/Plugins/Process/Utility/RegisterContextLinux_mips.cpp
@@ -10,17 +10,59 @@
 #include <vector>
 #include <stddef.h>
 
+// For GDB, GCC and DWARF Register numbers
 #include "RegisterContextLinux_mips.h"
 
 // Internal codes for mips registers
-#include "lldb-mips-linux-register-enums.h"
-
-// For GP and FP buffers
-#include "RegisterContext_mips.h"
+#include "lldb-mips64-register-enums.h"
+#include "RegisterContext_mips64.h"
 
 using namespace lldb_private;
 using namespace lldb;
 
+// GP registers
+typedef struct _GPR
+{
+    uint32_t zero;
+    uint32_t r1;
+    uint32_t r2;
+    uint32_t r3;
+    uint32_t r4;
+    uint32_t r5;
+    uint32_t r6;
+    uint32_t r7;
+    uint32_t r8;
+    uint32_t r9;
+    uint32_t r10;
+    uint32_t r11;
+    uint32_t r12;
+    uint32_t r13;
+    uint32_t r14;
+    uint32_t r15;
+    uint32_t r16;
+    uint32_t r17;
+    uint32_t r18;
+    uint32_t r19;
+    uint32_t r20;
+    uint32_t r21;
+    uint32_t r22;
+    uint32_t r23;
+    uint32_t r24;
+    uint32_t r25;
+    uint32_t r26;
+    uint32_t r27;
+    uint32_t gp;
+    uint32_t sp;
+    uint32_t r30;
+    uint32_t ra;
+    uint32_t mullo;
+    uint32_t mulhi;
+    uint32_t pc;
+    uint32_t badvaddr;
+    uint32_t sr;
+    uint32_t cause;
+} GPR;
+
 //---------------------------------------------------------------------------
 // Include RegisterInfos_mips to declare our g_register_infos_mips structure.
 //---------------------------------------------------------------------------
@@ -36,7 +78,7 @@ RegisterContextLinux_mips::RegisterContextLinux_mips(const ArchSpec &target_arch
 size_t
 RegisterContextLinux_mips::GetGPRSize() const
 {
-    return sizeof(GPR_linux_mips);
+    return sizeof(GPR);
 }
 
 const RegisterInfo *
@@ -58,9 +100,3 @@ RegisterContextLinux_mips::GetRegisterCount () const
 {
     return static_cast<uint32_t> (sizeof (g_register_infos_mips) / sizeof (g_register_infos_mips [0]));
 }
-
-uint32_t
-RegisterContextLinux_mips::GetUserRegisterCount () const
-{
-    return static_cast<uint32_t> (k_num_user_registers_mips);
-}
diff --git a/lldb/source/Plugins/Process/Utility/RegisterContextLinux_mips.h b/lldb/source/Plugins/Process/Utility/RegisterContextLinux_mips.h
index bcc2d002c85..815473e76dd 100644
--- a/lldb/source/Plugins/Process/Utility/RegisterContextLinux_mips.h
+++ b/lldb/source/Plugins/Process/Utility/RegisterContextLinux_mips.h
@@ -27,9 +27,6 @@ public:
 
     uint32_t
     GetRegisterCount () const override;
-
-    uint32_t
-    GetUserRegisterCount () const override;
 };
 
 #endif
diff --git a/lldb/source/Plugins/Process/Utility/RegisterContextLinux_mips64.cpp b/lldb/source/Plugins/Process/Utility/RegisterContextLinux_mips64.cpp
index dd577034f5e..a762930e8eb 100644
--- a/lldb/source/Plugins/Process/Utility/RegisterContextLinux_mips64.cpp
+++ b/lldb/source/Plugins/Process/Utility/RegisterContextLinux_mips64.cpp
@@ -12,24 +12,66 @@
 #include <vector>
 #include <stddef.h>
 
+// For GDB, GCC and DWARF Register numbers
 #include "RegisterContextLinux_mips64.h"
 
-// For GP and FP buffers
-#include "RegisterContext_mips.h"
-
-// Internal codes for all mips32 and mips64 registers
-#include "lldb-mips-linux-register-enums.h"
+// Internal codes for all mips64 registers
+#include "lldb-mips64-register-enums.h"
+#include "RegisterContext_mips64.h"
 
 using namespace lldb;
 using namespace lldb_private;
 
+// GP registers
+typedef struct _GPR
+{
+    uint64_t zero;
+    uint64_t r1;
+    uint64_t r2;
+    uint64_t r3;
+    uint64_t r4;
+    uint64_t r5;
+    uint64_t r6;
+    uint64_t r7;
+    uint64_t r8;
+    uint64_t r9;
+    uint64_t r10;
+    uint64_t r11;
+    uint64_t r12;
+    uint64_t r13;
+    uint64_t r14;
+    uint64_t r15;
+    uint64_t r16;
+    uint64_t r17;
+    uint64_t r18;
+    uint64_t r19;
+    uint64_t r20;
+    uint64_t r21;
+    uint64_t r22;
+    uint64_t r23;
+    uint64_t r24;
+    uint64_t r25;
+    uint64_t r26;
+    uint64_t r27;
+    uint64_t gp;
+    uint64_t sp;
+    uint64_t r30;
+    uint64_t ra;
+    uint64_t mullo;
+    uint64_t mulhi;
+    uint64_t pc;
+    uint64_t badvaddr;
+    uint64_t sr;
+    uint64_t cause;
+    uint64_t ic;
+    uint64_t dummy;
+} GPR;
+
 //---------------------------------------------------------------------------
 // Include RegisterInfos_mips64 to declare our g_register_infos_mips64 structure.
 //---------------------------------------------------------------------------
 #define DECLARE_REGISTER_INFOS_MIPS64_STRUCT
-#define LINUX_MIPS64
 #include "RegisterInfos_mips64.h"
-#undef LINUX_MIPS64
 #undef DECLARE_REGISTER_INFOS_MIPS64_STRUCT
 
 //---------------------------------------------------------------------------
@@ -73,35 +115,17 @@ GetRegisterInfoCount (const ArchSpec &target_arch)
     }
 }
 
-uint32_t
-GetUserRegisterInfoCount (const ArchSpec &target_arch)
-{
-    switch (target_arch.GetMachine())
-    {
-        case llvm::Triple::mips:
-        case llvm::Triple::mipsel:
-            return static_cast<uint32_t> (k_num_user_registers_mips);
-        case llvm::Triple::mips64el:
-        case llvm::Triple::mips64:
-            return static_cast<uint32_t> (k_num_user_registers_mips64);
-        default:
-            assert(false && "Unhandled target architecture.");
-            return 0;
-    }
-}
-
 RegisterContextLinux_mips64::RegisterContextLinux_mips64(const ArchSpec &target_arch) :
     lldb_private::RegisterInfoInterface(target_arch),
     m_register_info_p (GetRegisterInfoPtr (target_arch)),
-    m_register_info_count (GetRegisterInfoCount (target_arch)),
-    m_user_register_count (GetUserRegisterInfoCount (target_arch))
+    m_register_info_count (GetRegisterInfoCount (target_arch))
 {
 }
 
 size_t
 RegisterContextLinux_mips64::GetGPRSize() const
 {
-    return sizeof(GPR_linux_mips);
+    return sizeof(GPR);
 }
 
 const RegisterInfo *
@@ -116,10 +140,4 @@ RegisterContextLinux_mips64::GetRegisterCount () const
     return m_register_info_count;
 }
 
-uint32_t
-RegisterContextLinux_mips64::GetUserRegisterCount () const
-{
-    return m_user_register_count;
-}
-
 #endif
diff --git a/lldb/source/Plugins/Process/Utility/RegisterContextLinux_mips64.h b/lldb/source/Plugins/Process/Utility/RegisterContextLinux_mips64.h
index 86c662c52ce..546d148eb69 100644
--- a/lldb/source/Plugins/Process/Utility/RegisterContextLinux_mips64.h
+++ b/lldb/source/Plugins/Process/Utility/RegisterContextLinux_mips64.h
@@ -30,13 +30,9 @@ public:
     uint32_t
     GetRegisterCount () const override;
 
-    uint32_t
-    GetUserRegisterCount () const override;
-
 private:
     const lldb_private::RegisterInfo *m_register_info_p;
     uint32_t m_register_info_count;
-    uint32_t m_user_register_count;
 };
 
 #endif
diff --git a/lldb/source/Plugins/Process/Utility/RegisterContextPOSIX_mips64.h b/lldb/source/Plugins/Process/Utility/RegisterContextPOSIX_mips64.h
index 612a0346698..2a61685f12a 100644
--- a/lldb/source/Plugins/Process/Utility/RegisterContextPOSIX_mips64.h
+++ b/lldb/source/Plugins/Process/Utility/RegisterContextPOSIX_mips64.h
@@ -12,8 +12,8 @@
 
 #include "lldb/Core/Log.h"
 #include "RegisterContextPOSIX.h"
-#include "RegisterContext_mips.h"
-#include "lldb-mips-freebsd-register-enums.h"
+#include "RegisterContext_mips64.h"
+#include "lldb-mips64-register-enums.h"
 
 using namespace lldb_private;
 
diff --git a/lldb/source/Plugins/Process/Utility/RegisterContext_mips.h b/lldb/source/Plugins/Process/Utility/RegisterContext_mips64.h
index 871ad066efa..96ce2a0acc5 100644
--- a/lldb/source/Plugins/Process/Utility/RegisterContext_mips.h
+++ b/lldb/source/Plugins/Process/Utility/RegisterContext_mips64.h
@@ -1,4 +1,4 @@
-//===-- RegisterContext_mips.h --------------------------------*- C++ -*-===//
+//===-- RegisterContext_mips64.h --------------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -10,10 +10,6 @@
 #ifndef liblldb_RegisterContext_mips64_H_
 #define liblldb_RegisterContext_mips64_H_
 
-#if defined(__mips64)
-    #define ENABLE_128_BIT_SUPPORT 1
-#endif
-
 // GCC and DWARF Register numbers (eRegisterKindGCC & eRegisterKindDWARF)
 enum
 {
@@ -50,12 +46,12 @@ enum
     gcc_dwarf_sp_mips,
     gcc_dwarf_r30_mips,
     gcc_dwarf_ra_mips,
-    gcc_dwarf_sr_mips,
     gcc_dwarf_lo_mips,
     gcc_dwarf_hi_mips,
+    gcc_dwarf_pc_mips,
     gcc_dwarf_bad_mips,
+    gcc_dwarf_sr_mips,
     gcc_dwarf_cause_mips,
-    gcc_dwarf_pc_mips,
     gcc_dwarf_f0_mips,
     gcc_dwarf_f1_mips,
     gcc_dwarf_f2_mips,
@@ -90,41 +86,6 @@ enum
     gcc_dwarf_f31_mips,
     gcc_dwarf_fcsr_mips,
     gcc_dwarf_fir_mips,
-    gcc_dwarf_w0_mips,
-    gcc_dwarf_w1_mips,
-    gcc_dwarf_w2_mips,
-    gcc_dwarf_w3_mips,
-    gcc_dwarf_w4_mips,
-    gcc_dwarf_w5_mips,
-    gcc_dwarf_w6_mips,
-    gcc_dwarf_w7_mips,
-    gcc_dwarf_w8_mips,
-    gcc_dwarf_w9_mips,
-    gcc_dwarf_w10_mips,
-    gcc_dwarf_w11_mips,
-    gcc_dwarf_w12_mips,
-    gcc_dwarf_w13_mips,
-    gcc_dwarf_w14_mips,
-    gcc_dwarf_w15_mips,
-    gcc_dwarf_w16_mips,
-    gcc_dwarf_w17_mips,
-    gcc_dwarf_w18_mips,
-    gcc_dwarf_w19_mips,
-    gcc_dwarf_w20_mips,
-    gcc_dwarf_w21_mips,
-    gcc_dwarf_w22_mips,
-    gcc_dwarf_w23_mips,
-    gcc_dwarf_w24_mips,
-    gcc_dwarf_w25_mips,
-    gcc_dwarf_w26_mips,
-    gcc_dwarf_w27_mips,
-    gcc_dwarf_w28_mips,
-    gcc_dwarf_w29_mips,
-    gcc_dwarf_w30_mips,
-    gcc_dwarf_w31_mips,
-    gcc_dwarf_mcsr_mips,
-    gcc_dwarf_mir_mips,
-    gcc_dwarf_config5_mips,
     gcc_dwarf_ic_mips,
     gcc_dwarf_dummy_mips
 };
@@ -204,42 +165,7 @@ enum
     gcc_dwarf_fcsr_mips64,
     gcc_dwarf_fir_mips64,
     gcc_dwarf_ic_mips64,
-    gcc_dwarf_dummy_mips64,
-    gcc_dwarf_w0_mips64,
-    gcc_dwarf_w1_mips64,
-    gcc_dwarf_w2_mips64,
-    gcc_dwarf_w3_mips64,
-    gcc_dwarf_w4_mips64,
-    gcc_dwarf_w5_mips64,
-    gcc_dwarf_w6_mips64,
-    gcc_dwarf_w7_mips64,
-    gcc_dwarf_w8_mips64,
-    gcc_dwarf_w9_mips64,
-    gcc_dwarf_w10_mips64,
-    gcc_dwarf_w11_mips64,
-    gcc_dwarf_w12_mips64,
-    gcc_dwarf_w13_mips64,
-    gcc_dwarf_w14_mips64,
-    gcc_dwarf_w15_mips64,
-    gcc_dwarf_w16_mips64,
-    gcc_dwarf_w17_mips64,
-    gcc_dwarf_w18_mips64,
-    gcc_dwarf_w19_mips64,
-    gcc_dwarf_w20_mips64,
-    gcc_dwarf_w21_mips64,
-    gcc_dwarf_w22_mips64,
-    gcc_dwarf_w23_mips64,
-    gcc_dwarf_w24_mips64,
-    gcc_dwarf_w25_mips64,
-    gcc_dwarf_w26_mips64,
-    gcc_dwarf_w27_mips64,
-    gcc_dwarf_w28_mips64,
-    gcc_dwarf_w29_mips64,
-    gcc_dwarf_w30_mips64,
-    gcc_dwarf_w31_mips64,
-    gcc_dwarf_mcsr_mips64,
-    gcc_dwarf_mir_mips64,
-    gcc_dwarf_config5_mips64,
+    gcc_dwarf_dummy_mips64
 };
 
 // GDB Register numbers (eRegisterKindGDB)
@@ -277,12 +203,12 @@ enum
     gdb_sp_mips,
     gdb_r30_mips,
     gdb_ra_mips,
-    gdb_sr_mips,
     gdb_lo_mips,
     gdb_hi_mips,
+    gdb_pc_mips,
     gdb_bad_mips,
+    gdb_sr_mips,
     gdb_cause_mips,
-    gdb_pc_mips,
     gdb_f0_mips,
     gdb_f1_mips,
     gdb_f2_mips,
@@ -317,41 +243,6 @@ enum
     gdb_f31_mips,
     gdb_fcsr_mips,
     gdb_fir_mips,
-    gdb_w0_mips,
-    gdb_w1_mips,
-    gdb_w2_mips,
-    gdb_w3_mips,
-    gdb_w4_mips,
-    gdb_w5_mips,
-    gdb_w6_mips,
-    gdb_w7_mips,
-    gdb_w8_mips,
-    gdb_w9_mips,
-    gdb_w10_mips,
-    gdb_w11_mips,
-    gdb_w12_mips,
-    gdb_w13_mips,
-    gdb_w14_mips,
-    gdb_w15_mips,
-    gdb_w16_mips,
-    gdb_w17_mips,
-    gdb_w18_mips,
-    gdb_w19_mips,
-    gdb_w20_mips,
-    gdb_w21_mips,
-    gdb_w22_mips,
-    gdb_w23_mips,
-    gdb_w24_mips,
-    gdb_w25_mips,
-    gdb_w26_mips,
-    gdb_w27_mips,
-    gdb_w28_mips,
-    gdb_w29_mips,
-    gdb_w30_mips,
-    gdb_w31_mips,
-    gdb_mcsr_mips,
-    gdb_mir_mips,
-    gdb_config5_mips,
     gdb_ic_mips,
     gdb_dummy_mips
 };
@@ -431,184 +322,15 @@ enum
     gdb_fcsr_mips64,
     gdb_fir_mips64,
     gdb_ic_mips64,
-    gdb_dummy_mips64,
-    gdb_w0_mips64,
-    gdb_w1_mips64,
-    gdb_w2_mips64,
-    gdb_w3_mips64,
-    gdb_w4_mips64,
-    gdb_w5_mips64,
-    gdb_w6_mips64,
-    gdb_w7_mips64,
-    gdb_w8_mips64,
-    gdb_w9_mips64,
-    gdb_w10_mips64,
-    gdb_w11_mips64,
-    gdb_w12_mips64,
-    gdb_w13_mips64,
-    gdb_w14_mips64,
-    gdb_w15_mips64,
-    gdb_w16_mips64,
-    gdb_w17_mips64,
-    gdb_w18_mips64,
-    gdb_w19_mips64,
-    gdb_w20_mips64,
-    gdb_w21_mips64,
-    gdb_w22_mips64,
-    gdb_w23_mips64,
-    gdb_w24_mips64,
-    gdb_w25_mips64,
-    gdb_w26_mips64,
-    gdb_w27_mips64,
-    gdb_w28_mips64,
-    gdb_w29_mips64,
-    gdb_w30_mips64,
-    gdb_w31_mips64,
-    gdb_mcsr_mips64,
-    gdb_mir_mips64,
-    gdb_config5_mips64,
-};
-
-struct IOVEC_mips
-{
-    void    *iov_base;
-    size_t   iov_len;
-};
-
-// GP registers
-struct GPR_linux_mips
-{
-    uint64_t zero;
-    uint64_t r1;
-    uint64_t r2;
-    uint64_t r3;
-    uint64_t r4;
-    uint64_t r5;
-    uint64_t r6;
-    uint64_t r7;
-    uint64_t r8;
-    uint64_t r9;
-    uint64_t r10;
-    uint64_t r11;
-    uint64_t r12;
-    uint64_t r13;
-    uint64_t r14;
-    uint64_t r15;
-    uint64_t r16;
-    uint64_t r17;
-    uint64_t r18;
-    uint64_t r19;
-    uint64_t r20;
-    uint64_t r21;
-    uint64_t r22;
-    uint64_t r23;
-    uint64_t r24;
-    uint64_t r25;
-    uint64_t r26;
-    uint64_t r27;
-    uint64_t gp;
-    uint64_t sp;
-    uint64_t r30;
-    uint64_t ra;
-    uint64_t mullo;
-    uint64_t mulhi;
-    uint64_t pc;
-    uint64_t badvaddr;
-    uint64_t sr;
-    uint64_t cause;
-    uint64_t config5;
-};
-
-struct FPR_linux_mips
-{
-     uint64_t f0;
-     uint64_t f1;
-     uint64_t f2;
-     uint64_t f3;
-     uint64_t f4;
-     uint64_t f5;
-     uint64_t f6;
-     uint64_t f7;
-     uint64_t f8;
-     uint64_t f9;
-     uint64_t f10;
-     uint64_t f11;
-     uint64_t f12;
-     uint64_t f13;
-     uint64_t f14;
-     uint64_t f15;
-     uint64_t f16;
-     uint64_t f17;
-     uint64_t f18;
-     uint64_t f19;
-     uint64_t f20;
-     uint64_t f21;
-     uint64_t f22;
-     uint64_t f23;
-     uint64_t f24;
-     uint64_t f25;
-     uint64_t f26;
-     uint64_t f27;
-     uint64_t f28;
-     uint64_t f29;
-     uint64_t f30;
-     uint64_t f31;
-     uint32_t fcsr;
-     uint32_t fir;
-     uint32_t config5;
-};
-
-struct MSAReg
-{
-    uint8_t byte[16];
-};
-
-struct MSA_linux_mips
-{
-    MSAReg  w0;
-    MSAReg  w1;
-    MSAReg  w2;
-    MSAReg  w3;
-    MSAReg  w4;
-    MSAReg  w5;
-    MSAReg  w6;
-    MSAReg  w7;
-    MSAReg  w8;
-    MSAReg  w9;
-    MSAReg  w10;
-    MSAReg  w11;
-    MSAReg  w12;
-    MSAReg  w13;
-    MSAReg  w14;
-    MSAReg  w15;
-    MSAReg  w16;
-    MSAReg  w17;
-    MSAReg  w18;
-    MSAReg  w19;
-    MSAReg  w20;
-    MSAReg  w21;
-    MSAReg  w22;
-    MSAReg  w23;
-    MSAReg  w24;
-    MSAReg  w25;
-    MSAReg  w26;
-    MSAReg  w27;
-    MSAReg  w28;
-    MSAReg  w29;
-    MSAReg  w30;
-    MSAReg  w31;
-    uint32_t fcsr;      /* FPU control status register */
-    uint32_t fir;       /* FPU implementaion revision */
-    uint32_t mcsr;      /* MSA control status register */
-    uint32_t mir;       /* MSA implementation revision */
-    uint32_t config5;   /* Config5 register */
+    gdb_dummy_mips64
 };
 
-struct UserArea
+// FP registers
+struct FPR_mips
 {
-    GPR_linux_mips gpr; // General purpose registers.
-    FPR_linux_mips fpr; // Floating point registers.
-    MSA_linux_mips msa; // MSA registers.
+    uint64_t    fp_reg[32];
+    uint32_t    fcsr;        /* FPU status register */
+    uint32_t    fir;        /* FPU control register */
 };
 
 #endif // liblldb_RegisterContext_mips64_H_
diff --git a/lldb/source/Plugins/Process/Utility/RegisterInfos_mips.h b/lldb/source/Plugins/Process/Utility/RegisterInfos_mips.h
index 83ce6f0d432..0956b2ca9ec 100644
--- a/lldb/source/Plugins/Process/Utility/RegisterInfos_mips.h
+++ b/lldb/source/Plugins/Process/Utility/RegisterInfos_mips.h
@@ -14,35 +14,24 @@
 
 // Computes the offset of the given GPR in the user data area.
 #define GPR_OFFSET(regname) \
-    (LLVM_EXTENSION offsetof(UserArea, gpr) + \
-     LLVM_EXTENSION offsetof(GPR_linux_mips, regname))
+    (LLVM_EXTENSION offsetof(GPR, regname))
 
 // Computes the offset of the given FPR in the extended data area.
 #define FPR_OFFSET(regname)  \
-     (LLVM_EXTENSION offsetof(UserArea, fpr) + \
-      LLVM_EXTENSION offsetof(FPR_linux_mips, regname))
-
-// Computes the offset of the given MSA in the extended data area.
-#define MSA_OFFSET(regname)  \
-     (LLVM_EXTENSION offsetof(UserArea, msa) + \
-      LLVM_EXTENSION offsetof(MSA_linux_mips, regname))
+     (LLVM_EXTENSION offsetof(FPR_mips, regname))
 
 // Note that the size and offset will be updated by platform-specific classes.
 #define DEFINE_GPR(reg, alt, kind1, kind2, kind3, kind4)            \
-    { #reg, alt, sizeof(((GPR_linux_mips*)NULL)->reg) / 2, GPR_OFFSET(reg), eEncodingUint,  \
+    { #reg, alt, sizeof(((GPR*)NULL)->reg), GPR_OFFSET(reg), eEncodingUint,  \
       eFormatHex, { kind1, kind2, kind3, kind4, gpr_##reg##_mips }, NULL, NULL }
 
-#define DEFINE_FPR(reg, alt, kind1, kind2, kind3, kind4)           \
-    { #reg, alt, sizeof(((FPR_linux_mips*)NULL)->reg), FPR_OFFSET(reg), eEncodingUint,   \
+#define DEFINE_FPR(member, reg, alt, kind1, kind2, kind3, kind4)           \
+    { #reg, alt, sizeof(((FPR_mips*)NULL)->member) / 2, FPR_OFFSET(member), eEncodingUint,   \
       eFormatHex, { kind1, kind2, kind3, kind4, fpr_##reg##_mips }, NULL, NULL }
 
-#define DEFINE_MSA(reg, alt, kind1, kind2, kind3, kind4)    \
-    { #reg, alt, sizeof(((MSA_linux_mips*)0)->reg), MSA_OFFSET(reg), eEncodingVector,   \
-      eFormatVectorOfUInt8, { kind1, kind2, kind3, kind4, msa_##reg##_mips }, NULL, NULL }
-
-#define DEFINE_MSA_INFO(reg, alt, kind1, kind2, kind3, kind4)    \
-    { #reg, alt, sizeof(((MSA_linux_mips*)0)->reg), MSA_OFFSET(reg), eEncodingUint, \
-      eFormatHex, { kind1, kind2, kind3, kind4, msa_##reg##_mips }, NULL, NULL }
+#define DEFINE_FPR_INFO(member, reg, alt, kind1, kind2, kind3, kind4)           \
+    { #reg, alt, sizeof(((FPR_mips*)NULL)->member), FPR_OFFSET(member), eEncodingUint,   \
+      eFormatHex, { kind1, kind2, kind3, kind4, fpr_##reg##_mips }, NULL, NULL }
 
 // RegisterKind: GCC, DWARF, Generic, GDB, LLDB
 
@@ -81,95 +70,53 @@ g_register_infos_mips[] =
     DEFINE_GPR (sp,       "sp",   gcc_dwarf_sp_mips,    gcc_dwarf_sp_mips,    LLDB_REGNUM_GENERIC_SP, gdb_sp_mips),
     DEFINE_GPR (r30,      "fp",   gcc_dwarf_r30_mips,   gcc_dwarf_r30_mips,   LLDB_REGNUM_GENERIC_FP, gdb_r30_mips),
     DEFINE_GPR (ra,       "ra",   gcc_dwarf_ra_mips,    gcc_dwarf_ra_mips,    LLDB_REGNUM_GENERIC_RA, gdb_ra_mips),
-    DEFINE_GPR (sr,   "status",   gcc_dwarf_sr_mips,    gcc_dwarf_sr_mips,    LLDB_REGNUM_GENERIC_FLAGS,    LLDB_INVALID_REGNUM),
     DEFINE_GPR (mullo,    NULL,   gcc_dwarf_lo_mips,    gcc_dwarf_lo_mips,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
     DEFINE_GPR (mulhi,    NULL,   gcc_dwarf_hi_mips,    gcc_dwarf_hi_mips,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (pc,       NULL,   gcc_dwarf_pc_mips,    gcc_dwarf_pc_mips,    LLDB_REGNUM_GENERIC_PC, LLDB_INVALID_REGNUM),
     DEFINE_GPR (badvaddr, NULL,   gcc_dwarf_bad_mips,    gcc_dwarf_bad_mips,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR (sr,   "status",   gcc_dwarf_sr_mips,    gcc_dwarf_sr_mips,    LLDB_REGNUM_GENERIC_FLAGS,    LLDB_INVALID_REGNUM),
     DEFINE_GPR (cause,    NULL,   gcc_dwarf_cause_mips,    gcc_dwarf_cause_mips,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
-    DEFINE_GPR (pc,       NULL,   gcc_dwarf_pc_mips,    gcc_dwarf_pc_mips,    LLDB_REGNUM_GENERIC_PC, LLDB_INVALID_REGNUM),
-    DEFINE_GPR (config5,    NULL,   gcc_dwarf_config5_mips,    gcc_dwarf_config5_mips,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
-    DEFINE_FPR (f0,    NULL,   gcc_dwarf_f0_mips,   gcc_dwarf_f0_mips,   LLDB_INVALID_REGNUM,    gdb_f0_mips),
-    DEFINE_FPR (f1,    NULL,   gcc_dwarf_f1_mips,   gcc_dwarf_f1_mips,   LLDB_INVALID_REGNUM,    gdb_f1_mips),
-    DEFINE_FPR (f2,    NULL,   gcc_dwarf_f2_mips,   gcc_dwarf_f2_mips,   LLDB_INVALID_REGNUM,    gdb_f2_mips),
-    DEFINE_FPR (f3,    NULL,   gcc_dwarf_f3_mips,   gcc_dwarf_f3_mips,   LLDB_INVALID_REGNUM,    gdb_f3_mips),
-    DEFINE_FPR (f4,    NULL,   gcc_dwarf_f4_mips,   gcc_dwarf_f4_mips,   LLDB_INVALID_REGNUM,    gdb_f4_mips),
-    DEFINE_FPR (f5,    NULL,   gcc_dwarf_f5_mips,   gcc_dwarf_f5_mips,   LLDB_INVALID_REGNUM,    gdb_f5_mips),
-    DEFINE_FPR (f6,    NULL,   gcc_dwarf_f6_mips,   gcc_dwarf_f6_mips,   LLDB_INVALID_REGNUM,    gdb_f6_mips),
-    DEFINE_FPR (f7,    NULL,   gcc_dwarf_f7_mips,   gcc_dwarf_f7_mips,   LLDB_INVALID_REGNUM,    gdb_f7_mips),
-    DEFINE_FPR (f8,    NULL,   gcc_dwarf_f8_mips,   gcc_dwarf_f8_mips,   LLDB_INVALID_REGNUM,    gdb_f8_mips),
-    DEFINE_FPR (f9,    NULL,   gcc_dwarf_f9_mips,   gcc_dwarf_f9_mips,   LLDB_INVALID_REGNUM,    gdb_f9_mips),
-    DEFINE_FPR (f10,   NULL,   gcc_dwarf_f10_mips,  gcc_dwarf_f10_mips,  LLDB_INVALID_REGNUM,    gdb_f10_mips),
-    DEFINE_FPR (f11,   NULL,   gcc_dwarf_f11_mips,  gcc_dwarf_f11_mips,  LLDB_INVALID_REGNUM,    gdb_f11_mips),
-    DEFINE_FPR (f12,   NULL,   gcc_dwarf_f12_mips,  gcc_dwarf_f12_mips,  LLDB_INVALID_REGNUM,    gdb_f12_mips),
-    DEFINE_FPR (f13,   NULL,   gcc_dwarf_f13_mips,  gcc_dwarf_f13_mips,  LLDB_INVALID_REGNUM,    gdb_f13_mips),
-    DEFINE_FPR (f14,   NULL,   gcc_dwarf_f14_mips,  gcc_dwarf_f14_mips,  LLDB_INVALID_REGNUM,    gdb_f14_mips),
-    DEFINE_FPR (f15,   NULL,   gcc_dwarf_f15_mips,  gcc_dwarf_f15_mips,  LLDB_INVALID_REGNUM,    gdb_f15_mips),
-    DEFINE_FPR (f16,   NULL,   gcc_dwarf_f16_mips,  gcc_dwarf_f16_mips,  LLDB_INVALID_REGNUM,    gdb_f16_mips),
-    DEFINE_FPR (f17,   NULL,   gcc_dwarf_f17_mips,  gcc_dwarf_f17_mips,  LLDB_INVALID_REGNUM,    gdb_f17_mips),
-    DEFINE_FPR (f18,   NULL,   gcc_dwarf_f18_mips,  gcc_dwarf_f18_mips,  LLDB_INVALID_REGNUM,    gdb_f18_mips),
-    DEFINE_FPR (f19,   NULL,   gcc_dwarf_f19_mips,  gcc_dwarf_f19_mips,  LLDB_INVALID_REGNUM,    gdb_f19_mips),
-    DEFINE_FPR (f20,   NULL,   gcc_dwarf_f20_mips,  gcc_dwarf_f20_mips,  LLDB_INVALID_REGNUM,    gdb_f20_mips),
-    DEFINE_FPR (f21,   NULL,   gcc_dwarf_f21_mips,  gcc_dwarf_f21_mips,  LLDB_INVALID_REGNUM,    gdb_f21_mips),
-    DEFINE_FPR (f22,   NULL,   gcc_dwarf_f22_mips,  gcc_dwarf_f22_mips,  LLDB_INVALID_REGNUM,    gdb_f22_mips),
-    DEFINE_FPR (f23,   NULL,   gcc_dwarf_f23_mips,  gcc_dwarf_f23_mips,  LLDB_INVALID_REGNUM,    gdb_f23_mips),
-    DEFINE_FPR (f24,   NULL,   gcc_dwarf_f24_mips,  gcc_dwarf_f24_mips,  LLDB_INVALID_REGNUM,    gdb_f24_mips),
-    DEFINE_FPR (f25,   NULL,   gcc_dwarf_f25_mips,  gcc_dwarf_f25_mips,  LLDB_INVALID_REGNUM,    gdb_f25_mips),
-    DEFINE_FPR (f26,   NULL,   gcc_dwarf_f26_mips,  gcc_dwarf_f26_mips,  LLDB_INVALID_REGNUM,    gdb_f26_mips),
-    DEFINE_FPR (f27,   NULL,   gcc_dwarf_f27_mips,  gcc_dwarf_f27_mips,  LLDB_INVALID_REGNUM,    gdb_f27_mips),
-    DEFINE_FPR (f28,   NULL,   gcc_dwarf_f28_mips,  gcc_dwarf_f28_mips,  LLDB_INVALID_REGNUM,    gdb_f28_mips),
-    DEFINE_FPR (f29,   NULL,   gcc_dwarf_f29_mips,  gcc_dwarf_f29_mips,  LLDB_INVALID_REGNUM,    gdb_f29_mips),
-    DEFINE_FPR (f30,   NULL,   gcc_dwarf_f30_mips,  gcc_dwarf_f30_mips,  LLDB_INVALID_REGNUM,    gdb_f30_mips),
-    DEFINE_FPR (f31,   NULL,   gcc_dwarf_f31_mips,  gcc_dwarf_f31_mips,  LLDB_INVALID_REGNUM,    gdb_f31_mips),
-    DEFINE_FPR (fcsr,  NULL,   gcc_dwarf_fcsr_mips, gcc_dwarf_fcsr_mips, LLDB_INVALID_REGNUM,    gdb_fcsr_mips),
-    DEFINE_FPR (fir,   NULL,   gcc_dwarf_fir_mips,  gcc_dwarf_fir_mips,  LLDB_INVALID_REGNUM,    gdb_fir_mips),
-    DEFINE_FPR (config5,   NULL,   gcc_dwarf_config5_mips,  gcc_dwarf_config5_mips,  LLDB_INVALID_REGNUM,    gdb_config5_mips),
-    DEFINE_MSA (w0,    NULL,   gcc_dwarf_w0_mips,   gcc_dwarf_w0_mips,   LLDB_INVALID_REGNUM,    gdb_w0_mips),
-    DEFINE_MSA (w1,    NULL,   gcc_dwarf_w1_mips,   gcc_dwarf_w1_mips,   LLDB_INVALID_REGNUM,    gdb_w1_mips),
-    DEFINE_MSA (w2,    NULL,   gcc_dwarf_w2_mips,   gcc_dwarf_w2_mips,   LLDB_INVALID_REGNUM,    gdb_w2_mips),
-    DEFINE_MSA (w3,    NULL,   gcc_dwarf_w3_mips,   gcc_dwarf_w3_mips,   LLDB_INVALID_REGNUM,    gdb_w3_mips),
-    DEFINE_MSA (w4,    NULL,   gcc_dwarf_w4_mips,   gcc_dwarf_w4_mips,   LLDB_INVALID_REGNUM,    gdb_w4_mips),
-    DEFINE_MSA (w5,    NULL,   gcc_dwarf_w5_mips,   gcc_dwarf_w5_mips,   LLDB_INVALID_REGNUM,    gdb_w5_mips),
-    DEFINE_MSA (w6,    NULL,   gcc_dwarf_w6_mips,   gcc_dwarf_w6_mips,   LLDB_INVALID_REGNUM,    gdb_w6_mips),
-    DEFINE_MSA (w7,    NULL,   gcc_dwarf_w7_mips,   gcc_dwarf_w7_mips,   LLDB_INVALID_REGNUM,    gdb_w7_mips),
-    DEFINE_MSA (w8,    NULL,   gcc_dwarf_w8_mips,   gcc_dwarf_w8_mips,   LLDB_INVALID_REGNUM,    gdb_w8_mips),
-    DEFINE_MSA (w9,    NULL,   gcc_dwarf_w9_mips,   gcc_dwarf_w9_mips,   LLDB_INVALID_REGNUM,    gdb_w9_mips),
-    DEFINE_MSA (w10,   NULL,   gcc_dwarf_w10_mips,  gcc_dwarf_w10_mips,  LLDB_INVALID_REGNUM,    gdb_w10_mips),
-    DEFINE_MSA (w11,   NULL,   gcc_dwarf_w11_mips,  gcc_dwarf_w11_mips,  LLDB_INVALID_REGNUM,    gdb_w11_mips),
-    DEFINE_MSA (w12,   NULL,   gcc_dwarf_w12_mips,  gcc_dwarf_w12_mips,  LLDB_INVALID_REGNUM,    gdb_w12_mips),
-    DEFINE_MSA (w13,   NULL,   gcc_dwarf_w13_mips,  gcc_dwarf_w13_mips,  LLDB_INVALID_REGNUM,    gdb_w13_mips),
-    DEFINE_MSA (w14,   NULL,   gcc_dwarf_w14_mips,  gcc_dwarf_w14_mips,  LLDB_INVALID_REGNUM,    gdb_w14_mips),
-    DEFINE_MSA (w15,   NULL,   gcc_dwarf_w15_mips,  gcc_dwarf_w15_mips,  LLDB_INVALID_REGNUM,    gdb_w15_mips),
-    DEFINE_MSA (w16,   NULL,   gcc_dwarf_w16_mips,  gcc_dwarf_w16_mips,  LLDB_INVALID_REGNUM,    gdb_w16_mips),
-    DEFINE_MSA (w17,   NULL,   gcc_dwarf_w17_mips,  gcc_dwarf_w17_mips,  LLDB_INVALID_REGNUM,    gdb_w17_mips),
-    DEFINE_MSA (w18,   NULL,   gcc_dwarf_w18_mips,  gcc_dwarf_w18_mips,  LLDB_INVALID_REGNUM,    gdb_w18_mips),
-    DEFINE_MSA (w19,   NULL,   gcc_dwarf_w19_mips,  gcc_dwarf_w19_mips,  LLDB_INVALID_REGNUM,    gdb_w19_mips),
-    DEFINE_MSA (w20,   NULL,   gcc_dwarf_w10_mips,  gcc_dwarf_w20_mips,  LLDB_INVALID_REGNUM,    gdb_w20_mips),
-    DEFINE_MSA (w21,   NULL,   gcc_dwarf_w21_mips,  gcc_dwarf_w21_mips,  LLDB_INVALID_REGNUM,    gdb_w21_mips),
-    DEFINE_MSA (w22,   NULL,   gcc_dwarf_w22_mips,  gcc_dwarf_w22_mips,  LLDB_INVALID_REGNUM,    gdb_w22_mips),
-    DEFINE_MSA (w23,   NULL,   gcc_dwarf_w23_mips,  gcc_dwarf_w23_mips,  LLDB_INVALID_REGNUM,    gdb_w23_mips),
-    DEFINE_MSA (w24,   NULL,   gcc_dwarf_w24_mips,  gcc_dwarf_w24_mips,  LLDB_INVALID_REGNUM,    gdb_w24_mips),
-    DEFINE_MSA (w25,   NULL,   gcc_dwarf_w25_mips,  gcc_dwarf_w25_mips,  LLDB_INVALID_REGNUM,    gdb_w25_mips),
-    DEFINE_MSA (w26,   NULL,   gcc_dwarf_w26_mips,  gcc_dwarf_w26_mips,  LLDB_INVALID_REGNUM,    gdb_w26_mips),
-    DEFINE_MSA (w27,   NULL,   gcc_dwarf_w27_mips,  gcc_dwarf_w27_mips,  LLDB_INVALID_REGNUM,    gdb_w27_mips),
-    DEFINE_MSA (w28,   NULL,   gcc_dwarf_w28_mips,  gcc_dwarf_w28_mips,  LLDB_INVALID_REGNUM,    gdb_w28_mips),
-    DEFINE_MSA (w29,   NULL,   gcc_dwarf_w29_mips,  gcc_dwarf_w29_mips,  LLDB_INVALID_REGNUM,    gdb_w29_mips),
-    DEFINE_MSA (w30,   NULL,   gcc_dwarf_w30_mips,  gcc_dwarf_w30_mips,  LLDB_INVALID_REGNUM,    gdb_w30_mips),
-    DEFINE_MSA (w31,   NULL,   gcc_dwarf_w31_mips,  gcc_dwarf_w31_mips,  LLDB_INVALID_REGNUM,    gdb_w31_mips),
-    DEFINE_MSA_INFO (mcsr,  NULL,   gcc_dwarf_mcsr_mips, gcc_dwarf_mcsr_mips, LLDB_INVALID_REGNUM,    gdb_mcsr_mips),
-    DEFINE_MSA_INFO (mir,   NULL,   gcc_dwarf_mir_mips,  gcc_dwarf_mir_mips,  LLDB_INVALID_REGNUM,    gdb_mir_mips),
-    DEFINE_MSA_INFO (fcsr,  NULL,   gcc_dwarf_fcsr_mips, gcc_dwarf_fcsr_mips, LLDB_INVALID_REGNUM,    gdb_fcsr_mips),
-    DEFINE_MSA_INFO (fir,   NULL,   gcc_dwarf_fir_mips,  gcc_dwarf_fir_mips,  LLDB_INVALID_REGNUM,    gdb_fir_mips),
-    DEFINE_MSA_INFO (config5, NULL,   gcc_dwarf_config5_mips,  gcc_dwarf_config5_mips,  LLDB_INVALID_REGNUM,    gdb_config5_mips)
+    DEFINE_FPR (fp_reg[0],   f0,    NULL,   gcc_dwarf_f0_mips,   gcc_dwarf_f0_mips,   LLDB_INVALID_REGNUM,    gdb_f0_mips),
+    DEFINE_FPR (fp_reg[1],   f1,    NULL,   gcc_dwarf_f1_mips,   gcc_dwarf_f1_mips,   LLDB_INVALID_REGNUM,    gdb_f1_mips),
+    DEFINE_FPR (fp_reg[2],   f2,    NULL,   gcc_dwarf_f2_mips,   gcc_dwarf_f2_mips,   LLDB_INVALID_REGNUM,    gdb_f2_mips),
+    DEFINE_FPR (fp_reg[3],   f3,    NULL,   gcc_dwarf_f3_mips,   gcc_dwarf_f3_mips,   LLDB_INVALID_REGNUM,    gdb_f3_mips),
+    DEFINE_FPR (fp_reg[4],   f4,    NULL,   gcc_dwarf_f4_mips,   gcc_dwarf_f4_mips,   LLDB_INVALID_REGNUM,    gdb_f4_mips),
+    DEFINE_FPR (fp_reg[5],   f5,    NULL,   gcc_dwarf_f5_mips,   gcc_dwarf_f5_mips,   LLDB_INVALID_REGNUM,    gdb_f5_mips),
+    DEFINE_FPR (fp_reg[6],   f6,    NULL,   gcc_dwarf_f6_mips,   gcc_dwarf_f6_mips,   LLDB_INVALID_REGNUM,    gdb_f6_mips),
+    DEFINE_FPR (fp_reg[7],   f7,    NULL,   gcc_dwarf_f7_mips,   gcc_dwarf_f7_mips,   LLDB_INVALID_REGNUM,    gdb_f7_mips),
+    DEFINE_FPR (fp_reg[8],   f8,    NULL,   gcc_dwarf_f8_mips,   gcc_dwarf_f8_mips,   LLDB_INVALID_REGNUM,    gdb_f8_mips),
+    DEFINE_FPR (fp_reg[9],   f9,    NULL,   gcc_dwarf_f9_mips,   gcc_dwarf_f9_mips,   LLDB_INVALID_REGNUM,    gdb_f9_mips),
+    DEFINE_FPR (fp_reg[10],  f10,   NULL,   gcc_dwarf_f10_mips,  gcc_dwarf_f10_mips,  LLDB_INVALID_REGNUM,    gdb_f10_mips),
+    DEFINE_FPR (fp_reg[11],  f11,   NULL,   gcc_dwarf_f11_mips,  gcc_dwarf_f11_mips,  LLDB_INVALID_REGNUM,    gdb_f11_mips),
+    DEFINE_FPR (fp_reg[12],  f12,   NULL,   gcc_dwarf_f12_mips,  gcc_dwarf_f12_mips,  LLDB_INVALID_REGNUM,    gdb_f12_mips),
+    DEFINE_FPR (fp_reg[13],  f13,   NULL,   gcc_dwarf_f13_mips,  gcc_dwarf_f13_mips,  LLDB_INVALID_REGNUM,    gdb_f13_mips),
+    DEFINE_FPR (fp_reg[14],  f14,   NULL,   gcc_dwarf_f14_mips,  gcc_dwarf_f14_mips,  LLDB_INVALID_REGNUM,    gdb_f14_mips),
+    DEFINE_FPR (fp_reg[15],  f15,   NULL,   gcc_dwarf_f15_mips,  gcc_dwarf_f15_mips,  LLDB_INVALID_REGNUM,    gdb_f15_mips),
+    DEFINE_FPR (fp_reg[16],  f16,   NULL,   gcc_dwarf_f16_mips,  gcc_dwarf_f16_mips,  LLDB_INVALID_REGNUM,    gdb_f16_mips),
+    DEFINE_FPR (fp_reg[17],  f17,   NULL,   gcc_dwarf_f17_mips,  gcc_dwarf_f17_mips,  LLDB_INVALID_REGNUM,    gdb_f17_mips),
+    DEFINE_FPR (fp_reg[18],  f18,   NULL,   gcc_dwarf_f18_mips,  gcc_dwarf_f18_mips,  LLDB_INVALID_REGNUM,    gdb_f18_mips),
+    DEFINE_FPR (fp_reg[19],  f19,   NULL,   gcc_dwarf_f19_mips,  gcc_dwarf_f19_mips,  LLDB_INVALID_REGNUM,    gdb_f19_mips),
+    DEFINE_FPR (fp_reg[20],  f20,   NULL,   gcc_dwarf_f20_mips,  gcc_dwarf_f20_mips,  LLDB_INVALID_REGNUM,    gdb_f20_mips),
+    DEFINE_FPR (fp_reg[21],  f21,   NULL,   gcc_dwarf_f21_mips,  gcc_dwarf_f21_mips,  LLDB_INVALID_REGNUM,    gdb_f21_mips),
+    DEFINE_FPR (fp_reg[22],  f22,   NULL,   gcc_dwarf_f22_mips,  gcc_dwarf_f22_mips,  LLDB_INVALID_REGNUM,    gdb_f22_mips),
+    DEFINE_FPR (fp_reg[23],  f23,   NULL,   gcc_dwarf_f23_mips,  gcc_dwarf_f23_mips,  LLDB_INVALID_REGNUM,    gdb_f23_mips),
+    DEFINE_FPR (fp_reg[24],  f24,   NULL,   gcc_dwarf_f24_mips,  gcc_dwarf_f24_mips,  LLDB_INVALID_REGNUM,    gdb_f24_mips),
+    DEFINE_FPR (fp_reg[25],  f25,   NULL,   gcc_dwarf_f25_mips,  gcc_dwarf_f25_mips,  LLDB_INVALID_REGNUM,    gdb_f25_mips),
+    DEFINE_FPR (fp_reg[26],  f26,   NULL,   gcc_dwarf_f26_mips,  gcc_dwarf_f26_mips,  LLDB_INVALID_REGNUM,    gdb_f26_mips),
+    DEFINE_FPR (fp_reg[27],  f27,   NULL,   gcc_dwarf_f27_mips,  gcc_dwarf_f27_mips,  LLDB_INVALID_REGNUM,    gdb_f27_mips),
+    DEFINE_FPR (fp_reg[28],  f28,   NULL,   gcc_dwarf_f28_mips,  gcc_dwarf_f28_mips,  LLDB_INVALID_REGNUM,    gdb_f28_mips),
+    DEFINE_FPR (fp_reg[29],  f29,   NULL,   gcc_dwarf_f29_mips,  gcc_dwarf_f29_mips,  LLDB_INVALID_REGNUM,    gdb_f29_mips),
+    DEFINE_FPR (fp_reg[30],  f30,   NULL,   gcc_dwarf_f30_mips,  gcc_dwarf_f30_mips,  LLDB_INVALID_REGNUM,    gdb_f30_mips),
+    DEFINE_FPR (fp_reg[31],  f31,   NULL,   gcc_dwarf_f31_mips,  gcc_dwarf_f31_mips,  LLDB_INVALID_REGNUM,    gdb_f31_mips),
+    DEFINE_FPR_INFO (fcsr,        fcsr,  NULL,   gcc_dwarf_fcsr_mips, gcc_dwarf_fcsr_mips, LLDB_INVALID_REGNUM,    gdb_fcsr_mips),
+    DEFINE_FPR_INFO (fir,         fir,   NULL,   gcc_dwarf_fir_mips,  gcc_dwarf_fir_mips,  LLDB_INVALID_REGNUM,    gdb_fir_mips)
 };
 static_assert((sizeof(g_register_infos_mips) / sizeof(g_register_infos_mips[0])) == k_num_registers_mips,
     "g_register_infos_mips has wrong number of register infos");
 
 #undef GPR_OFFSET
 #undef FPR_OFFSET
-#undef MSA_OFFSET
 #undef DEFINE_GPR
 #undef DEFINE_FPR
-#undef DEFINE_MSA
-#undef DEFINE_MSA_INFO
 
 #endif // DECLARE_REGISTER_INFOS_MIPS_STRUCT
diff --git a/lldb/source/Plugins/Process/Utility/RegisterInfos_mips64.h b/lldb/source/Plugins/Process/Utility/RegisterInfos_mips64.h
index 101842e66d4..e03aea4e3f2 100644
--- a/lldb/source/Plugins/Process/Utility/RegisterInfos_mips64.h
+++ b/lldb/source/Plugins/Process/Utility/RegisterInfos_mips64.h
@@ -13,59 +13,28 @@
 #ifdef DECLARE_REGISTER_INFOS_MIPS64_STRUCT
 
 // Computes the offset of the given GPR in the user data area.
-#ifdef LINUX_MIPS64
-    #define GPR_OFFSET(regname) \
-        (LLVM_EXTENSION offsetof(UserArea, gpr) + \
-         LLVM_EXTENSION offsetof(GPR_linux_mips, regname))
-#else
-    #define GPR_OFFSET(regname) \
-        (LLVM_EXTENSION offsetof(GPR_freebsd_mips, regname))
-#endif
+#define GPR_OFFSET(regname) \
+    (LLVM_EXTENSION offsetof(GPR, regname))
 
 // Computes the offset of the given FPR in the extended data area.
 #define FPR_OFFSET(regname) \
-     (LLVM_EXTENSION offsetof(UserArea, fpr) + \
-      LLVM_EXTENSION offsetof(FPR_linux_mips, regname))
-
-// Computes the offset of the given MSA in the extended data area.
-#define MSA_OFFSET(regname) \
-     (LLVM_EXTENSION offsetof(UserArea, msa) + \
-      LLVM_EXTENSION offsetof(MSA_linux_mips, regname))
+     LLVM_EXTENSION offsetof(FPR_mips, regname) \
 
 // RegisterKind: GCC, DWARF, Generic, GDB, LLDB
 
 // Note that the size and offset will be updated by platform-specific classes.
-#ifdef LINUX_MIPS64
-    #define DEFINE_GPR(reg, alt, kind1, kind2, kind3, kind4) \
-         { #reg, alt, sizeof(((GPR_linux_mips*)0)->reg), GPR_OFFSET(reg), eEncodingUint, \
-          eFormatHex, { kind1, kind2, kind3, kind4, gpr_##reg##_mips64 }, NULL, NULL }
-#else
-    #define DEFINE_GPR(reg, alt, kind1, kind2, kind3, kind4)    \
-         { #reg, alt, sizeof(((GPR_freebsd_mips*)0)->reg), GPR_OFFSET(reg), eEncodingUint, \
-          eFormatHex, { kind1, kind2, kind3, kind4, gpr_##reg##_mips64 }, NULL, NULL }
-#endif
-
-#define DEFINE_GPR_INFO(reg, alt, kind1, kind2, kind3, kind4)    \
-    { #reg, alt, sizeof(((GPR_linux_mips*)0)->reg) / 2, GPR_OFFSET(reg), eEncodingUint, \
+#define DEFINE_GPR(reg, alt, kind1, kind2, kind3, kind4)    \
+    { #reg, alt, sizeof(((GPR*)0)->reg), GPR_OFFSET(reg), eEncodingUint, \
       eFormatHex, { kind1, kind2, kind3, kind4, gpr_##reg##_mips64 }, NULL, NULL }
 
-#define DEFINE_FPR(reg, alt, kind1, kind2, kind3, kind4)    \
-    { #reg, alt, sizeof(((FPR_linux_mips*)0)->reg), FPR_OFFSET(reg), eEncodingUint,   \
+#define DEFINE_FPR(member, reg, alt, kind1, kind2, kind3, kind4)    \
+    { #reg, alt, sizeof(((FPR_mips*)0)->member), FPR_OFFSET(member), eEncodingUint,   \
       eFormatHex, { kind1, kind2, kind3, kind4, fpr_##reg##_mips64 }, NULL, NULL }
 
-#define DEFINE_MSA(reg, alt, kind1, kind2, kind3, kind4)    \
-    { #reg, alt, sizeof(((MSA_linux_mips*)0)->reg), MSA_OFFSET(reg), eEncodingVector,   \
-      eFormatVectorOfUInt8, { kind1, kind2, kind3, kind4, msa_##reg##_mips64 }, NULL, NULL }
-
-#define DEFINE_MSA_INFO(reg, alt, kind1, kind2, kind3, kind4)    \
-    { #reg, alt, sizeof(((MSA_linux_mips*)0)->reg), MSA_OFFSET(reg), eEncodingUint,   \
-      eFormatHex, { kind1, kind2, kind3, kind4, msa_##reg##_mips64 }, NULL, NULL }
-
 static RegisterInfo
 g_register_infos_mips64[] =
 {
     // General purpose registers.                 GCC,                  DWARF,              Generic,                GDB
-#ifndef LINUX_MIPS64
     DEFINE_GPR(zero,     "r0",  gcc_dwarf_zero_mips64,  gcc_dwarf_zero_mips64,  LLDB_INVALID_REGNUM,    gdb_zero_mips64),
     DEFINE_GPR(r1,       NULL,  gcc_dwarf_r1_mips64,    gcc_dwarf_r1_mips64,    LLDB_INVALID_REGNUM,    gdb_r1_mips64),
     DEFINE_GPR(r2,       NULL,  gcc_dwarf_r2_mips64,    gcc_dwarf_r2_mips64,    LLDB_INVALID_REGNUM,    gdb_r2_mips64),
@@ -98,140 +67,56 @@ g_register_infos_mips64[] =
     DEFINE_GPR(sp,       "r29", gcc_dwarf_sp_mips64,    gcc_dwarf_sp_mips64,    LLDB_REGNUM_GENERIC_SP, gdb_sp_mips64),
     DEFINE_GPR(r30,      NULL,  gcc_dwarf_r30_mips64,   gcc_dwarf_r30_mips64,   LLDB_REGNUM_GENERIC_FP,    gdb_r30_mips64),
     DEFINE_GPR(ra,       "r31", gcc_dwarf_ra_mips64,    gcc_dwarf_ra_mips64,    LLDB_REGNUM_GENERIC_RA,    gdb_ra_mips64),
-    DEFINE_GPR(sr,       NULL,  gcc_dwarf_sr_mips64,    gcc_dwarf_sr_mips64,    LLDB_REGNUM_GENERIC_FLAGS,    LLDB_INVALID_REGNUM),
     DEFINE_GPR(mullo,    NULL,  gcc_dwarf_lo_mips64,    gcc_dwarf_lo_mips64,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
     DEFINE_GPR(mulhi,    NULL,  gcc_dwarf_hi_mips64,    gcc_dwarf_hi_mips64,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(pc,       "pc",  gcc_dwarf_pc_mips64,    gcc_dwarf_pc_mips64,    LLDB_REGNUM_GENERIC_PC, LLDB_INVALID_REGNUM),
     DEFINE_GPR(badvaddr, NULL,  gcc_dwarf_bad_mips64,   gcc_dwarf_bad_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
+    DEFINE_GPR(sr,       NULL,  gcc_dwarf_sr_mips64,    gcc_dwarf_sr_mips64,    LLDB_REGNUM_GENERIC_FLAGS,    LLDB_INVALID_REGNUM),
     DEFINE_GPR(cause,    NULL,  gcc_dwarf_cause_mips64, gcc_dwarf_cause_mips64, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
-    DEFINE_GPR(pc,       "pc",  gcc_dwarf_pc_mips64,    gcc_dwarf_pc_mips64,    LLDB_REGNUM_GENERIC_PC, LLDB_INVALID_REGNUM),
     DEFINE_GPR(ic,       NULL,  gcc_dwarf_ic_mips64,    gcc_dwarf_ic_mips64,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
     DEFINE_GPR(dummy,    NULL,  gcc_dwarf_dummy_mips64, gcc_dwarf_dummy_mips64, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
-#else
 
-    DEFINE_GPR(zero,     "r0",  gcc_dwarf_zero_mips64,  gcc_dwarf_zero_mips64,  LLDB_INVALID_REGNUM,    gdb_zero_mips64),
-    DEFINE_GPR(r1,       NULL,  gcc_dwarf_r1_mips64,    gcc_dwarf_r1_mips64,    LLDB_INVALID_REGNUM,    gdb_r1_mips64),
-    DEFINE_GPR(r2,       NULL,  gcc_dwarf_r2_mips64,    gcc_dwarf_r2_mips64,    LLDB_INVALID_REGNUM,    gdb_r2_mips64),
-    DEFINE_GPR(r3,       NULL,  gcc_dwarf_r3_mips64,    gcc_dwarf_r3_mips64,    LLDB_INVALID_REGNUM,    gdb_r3_mips64),
-    DEFINE_GPR(r4,       NULL,  gcc_dwarf_r4_mips64,    gcc_dwarf_r4_mips64,    LLDB_REGNUM_GENERIC_ARG1,    gdb_r4_mips64),
-    DEFINE_GPR(r5,       NULL,  gcc_dwarf_r5_mips64,    gcc_dwarf_r5_mips64,    LLDB_REGNUM_GENERIC_ARG2,    gdb_r5_mips64),
-    DEFINE_GPR(r6,       NULL,  gcc_dwarf_r6_mips64,    gcc_dwarf_r6_mips64,    LLDB_REGNUM_GENERIC_ARG3,    gdb_r6_mips64),
-    DEFINE_GPR(r7,       NULL,  gcc_dwarf_r7_mips64,    gcc_dwarf_r7_mips64,    LLDB_REGNUM_GENERIC_ARG4,    gdb_r7_mips64),
-    DEFINE_GPR(r8,       NULL,  gcc_dwarf_r8_mips64,    gcc_dwarf_r8_mips64,    LLDB_REGNUM_GENERIC_ARG5,    gdb_r8_mips64),
-    DEFINE_GPR(r9,       NULL,  gcc_dwarf_r9_mips64,    gcc_dwarf_r9_mips64,    LLDB_REGNUM_GENERIC_ARG6,    gdb_r9_mips64),
-    DEFINE_GPR(r10,      NULL,  gcc_dwarf_r10_mips64,   gcc_dwarf_r10_mips64,   LLDB_REGNUM_GENERIC_ARG7,    gdb_r10_mips64),
-    DEFINE_GPR(r11,      NULL,  gcc_dwarf_r11_mips64,   gcc_dwarf_r11_mips64,   LLDB_REGNUM_GENERIC_ARG8,    gdb_r11_mips64),
-    DEFINE_GPR(r12,      NULL,  gcc_dwarf_r12_mips64,   gcc_dwarf_r12_mips64,   LLDB_INVALID_REGNUM,    gdb_r12_mips64),
-    DEFINE_GPR(r13,      NULL,  gcc_dwarf_r13_mips64,   gcc_dwarf_r13_mips64,   LLDB_INVALID_REGNUM,    gdb_r13_mips64),
-    DEFINE_GPR(r14,      NULL,  gcc_dwarf_r14_mips64,   gcc_dwarf_r14_mips64,   LLDB_INVALID_REGNUM,    gdb_r14_mips64),
-    DEFINE_GPR(r15,      NULL,  gcc_dwarf_r15_mips64,   gcc_dwarf_r15_mips64,   LLDB_INVALID_REGNUM,    gdb_r15_mips64),
-    DEFINE_GPR(r16,      NULL,  gcc_dwarf_r16_mips64,   gcc_dwarf_r16_mips64,   LLDB_INVALID_REGNUM,    gdb_r16_mips64),
-    DEFINE_GPR(r17,      NULL,  gcc_dwarf_r17_mips64,   gcc_dwarf_r17_mips64,   LLDB_INVALID_REGNUM,    gdb_r17_mips64),
-    DEFINE_GPR(r18,      NULL,  gcc_dwarf_r18_mips64,   gcc_dwarf_r18_mips64,   LLDB_INVALID_REGNUM,    gdb_r18_mips64),
-    DEFINE_GPR(r19,      NULL,  gcc_dwarf_r19_mips64,   gcc_dwarf_r19_mips64,   LLDB_INVALID_REGNUM,    gdb_r19_mips64),
-    DEFINE_GPR(r20,      NULL,  gcc_dwarf_r20_mips64,   gcc_dwarf_r20_mips64,   LLDB_INVALID_REGNUM,    gdb_r20_mips64),
-    DEFINE_GPR(r21,      NULL,  gcc_dwarf_r21_mips64,   gcc_dwarf_r21_mips64,   LLDB_INVALID_REGNUM,    gdb_r21_mips64),
-    DEFINE_GPR(r22,      NULL,  gcc_dwarf_r22_mips64,   gcc_dwarf_r22_mips64,   LLDB_INVALID_REGNUM,    gdb_r22_mips64),
-    DEFINE_GPR(r23,      NULL,  gcc_dwarf_r23_mips64,   gcc_dwarf_r23_mips64,   LLDB_INVALID_REGNUM,    gdb_r23_mips64),
-    DEFINE_GPR(r24,      NULL,  gcc_dwarf_r24_mips64,   gcc_dwarf_r24_mips64,   LLDB_INVALID_REGNUM,    gdb_r24_mips64),
-    DEFINE_GPR(r25,      NULL,  gcc_dwarf_r25_mips64,   gcc_dwarf_r25_mips64,   LLDB_INVALID_REGNUM,    gdb_r25_mips64),
-    DEFINE_GPR(r26,      NULL,  gcc_dwarf_r26_mips64,   gcc_dwarf_r26_mips64,   LLDB_INVALID_REGNUM,    gdb_r26_mips64),
-    DEFINE_GPR(r27,      NULL,  gcc_dwarf_r27_mips64,   gcc_dwarf_r27_mips64,   LLDB_INVALID_REGNUM,    gdb_r27_mips64),
-    DEFINE_GPR(gp,       "r28", gcc_dwarf_gp_mips64,    gcc_dwarf_gp_mips64,    LLDB_INVALID_REGNUM,    gdb_gp_mips64),
-    DEFINE_GPR(sp,       "r29", gcc_dwarf_sp_mips64,    gcc_dwarf_sp_mips64,    LLDB_REGNUM_GENERIC_SP, gdb_sp_mips64),
-    DEFINE_GPR(r30,      NULL,  gcc_dwarf_r30_mips64,   gcc_dwarf_r30_mips64,   LLDB_REGNUM_GENERIC_FP,    gdb_r30_mips64),
-    DEFINE_GPR(ra,       "r31", gcc_dwarf_ra_mips64,    gcc_dwarf_ra_mips64,    LLDB_REGNUM_GENERIC_RA,    gdb_ra_mips64),
-    DEFINE_GPR_INFO(sr,       NULL,  gcc_dwarf_sr_mips64,    gcc_dwarf_sr_mips64,    LLDB_REGNUM_GENERIC_FLAGS,    LLDB_INVALID_REGNUM),
-    DEFINE_GPR(mullo,    NULL,  gcc_dwarf_lo_mips64,    gcc_dwarf_lo_mips64,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
-    DEFINE_GPR(mulhi,    NULL,  gcc_dwarf_hi_mips64,    gcc_dwarf_hi_mips64,    LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
-    DEFINE_GPR(badvaddr, NULL,  gcc_dwarf_bad_mips64,   gcc_dwarf_bad_mips64,   LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
-    DEFINE_GPR_INFO(cause,    NULL,  gcc_dwarf_cause_mips64, gcc_dwarf_cause_mips64, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
-    DEFINE_GPR(pc,       "pc",  gcc_dwarf_pc_mips64,    gcc_dwarf_pc_mips64,    LLDB_REGNUM_GENERIC_PC, LLDB_INVALID_REGNUM),
-    DEFINE_GPR_INFO(config5,    NULL,  gcc_dwarf_config5_mips64, gcc_dwarf_config5_mips64, LLDB_INVALID_REGNUM,    LLDB_INVALID_REGNUM),
-    DEFINE_FPR (f0,    NULL,   gcc_dwarf_f0_mips64,   gcc_dwarf_f0_mips64,   LLDB_INVALID_REGNUM,    gdb_f0_mips64),
-    DEFINE_FPR (f1,    NULL,   gcc_dwarf_f1_mips64,   gcc_dwarf_f1_mips64,   LLDB_INVALID_REGNUM,    gdb_f1_mips64),
-    DEFINE_FPR (f2,    NULL,   gcc_dwarf_f2_mips64,   gcc_dwarf_f2_mips64,   LLDB_INVALID_REGNUM,    gdb_f2_mips64),
-    DEFINE_FPR (f3,    NULL,   gcc_dwarf_f3_mips64,   gcc_dwarf_f3_mips64,   LLDB_INVALID_REGNUM,    gdb_f3_mips64),
-    DEFINE_FPR (f4,    NULL,   gcc_dwarf_f4_mips64,   gcc_dwarf_f4_mips64,   LLDB_INVALID_REGNUM,    gdb_f4_mips64),
-    DEFINE_FPR (f5,    NULL,   gcc_dwarf_f5_mips64,   gcc_dwarf_f5_mips64,   LLDB_INVALID_REGNUM,    gdb_f5_mips64),
-    DEFINE_FPR (f6,    NULL,   gcc_dwarf_f6_mips64,   gcc_dwarf_f6_mips64,   LLDB_INVALID_REGNUM,    gdb_f6_mips64),
-    DEFINE_FPR (f7,    NULL,   gcc_dwarf_f7_mips64,   gcc_dwarf_f7_mips64,   LLDB_INVALID_REGNUM,    gdb_f7_mips64),
-    DEFINE_FPR (f8,    NULL,   gcc_dwarf_f8_mips64,   gcc_dwarf_f8_mips64,   LLDB_INVALID_REGNUM,    gdb_f8_mips64),
-    DEFINE_FPR (f9,    NULL,   gcc_dwarf_f9_mips64,   gcc_dwarf_f9_mips64,   LLDB_INVALID_REGNUM,    gdb_f9_mips64),
-    DEFINE_FPR (f10,   NULL,   gcc_dwarf_f10_mips64,  gcc_dwarf_f10_mips64,  LLDB_INVALID_REGNUM,    gdb_f10_mips64),
-    DEFINE_FPR (f11,   NULL,   gcc_dwarf_f11_mips64,  gcc_dwarf_f11_mips64,  LLDB_INVALID_REGNUM,    gdb_f11_mips64),
-    DEFINE_FPR (f12,   NULL,   gcc_dwarf_f12_mips64,  gcc_dwarf_f12_mips64,  LLDB_INVALID_REGNUM,    gdb_f12_mips64),
-    DEFINE_FPR (f13,   NULL,   gcc_dwarf_f13_mips64,  gcc_dwarf_f13_mips64,  LLDB_INVALID_REGNUM,    gdb_f13_mips64),
-    DEFINE_FPR (f14,   NULL,   gcc_dwarf_f14_mips64,  gcc_dwarf_f14_mips64,  LLDB_INVALID_REGNUM,    gdb_f14_mips64),
-    DEFINE_FPR (f15,   NULL,   gcc_dwarf_f15_mips64,  gcc_dwarf_f15_mips64,  LLDB_INVALID_REGNUM,    gdb_f15_mips64),
-    DEFINE_FPR (f16,   NULL,   gcc_dwarf_f16_mips64,  gcc_dwarf_f16_mips64,  LLDB_INVALID_REGNUM,    gdb_f16_mips64),
-    DEFINE_FPR (f17,   NULL,   gcc_dwarf_f17_mips64,  gcc_dwarf_f17_mips64,  LLDB_INVALID_REGNUM,    gdb_f17_mips64),
-    DEFINE_FPR (f18,   NULL,   gcc_dwarf_f18_mips64,  gcc_dwarf_f18_mips64,  LLDB_INVALID_REGNUM,    gdb_f18_mips64),
-    DEFINE_FPR (f19,   NULL,   gcc_dwarf_f19_mips64,  gcc_dwarf_f19_mips64,  LLDB_INVALID_REGNUM,    gdb_f19_mips64),
-    DEFINE_FPR (f20,   NULL,   gcc_dwarf_f20_mips64,  gcc_dwarf_f20_mips64,  LLDB_INVALID_REGNUM,    gdb_f20_mips64),
-    DEFINE_FPR (f21,   NULL,   gcc_dwarf_f21_mips64,  gcc_dwarf_f21_mips64,  LLDB_INVALID_REGNUM,    gdb_f21_mips64),
-    DEFINE_FPR (f22,   NULL,   gcc_dwarf_f22_mips64,  gcc_dwarf_f22_mips64,  LLDB_INVALID_REGNUM,    gdb_f22_mips64),
-    DEFINE_FPR (f23,   NULL,   gcc_dwarf_f23_mips64,  gcc_dwarf_f23_mips64,  LLDB_INVALID_REGNUM,    gdb_f23_mips64),
-    DEFINE_FPR (f24,   NULL,   gcc_dwarf_f24_mips64,  gcc_dwarf_f24_mips64,  LLDB_INVALID_REGNUM,    gdb_f24_mips64),
-    DEFINE_FPR (f25,   NULL,   gcc_dwarf_f25_mips64,  gcc_dwarf_f25_mips64,  LLDB_INVALID_REGNUM,    gdb_f25_mips64),
-    DEFINE_FPR (f26,   NULL,   gcc_dwarf_f26_mips64,  gcc_dwarf_f26_mips64,  LLDB_INVALID_REGNUM,    gdb_f26_mips64),
-    DEFINE_FPR (f27,   NULL,   gcc_dwarf_f27_mips64,  gcc_dwarf_f27_mips64,  LLDB_INVALID_REGNUM,    gdb_f27_mips64),
-    DEFINE_FPR (f28,   NULL,   gcc_dwarf_f28_mips64,  gcc_dwarf_f28_mips64,  LLDB_INVALID_REGNUM,    gdb_f28_mips64),
-    DEFINE_FPR (f29,   NULL,   gcc_dwarf_f29_mips64,  gcc_dwarf_f29_mips64,  LLDB_INVALID_REGNUM,    gdb_f29_mips64),
-    DEFINE_FPR (f30,   NULL,   gcc_dwarf_f30_mips64,  gcc_dwarf_f30_mips64,  LLDB_INVALID_REGNUM,    gdb_f30_mips64),
-    DEFINE_FPR (f31,   NULL,   gcc_dwarf_f31_mips64,  gcc_dwarf_f31_mips64,  LLDB_INVALID_REGNUM,    gdb_f31_mips64),
-    DEFINE_FPR (fcsr,  NULL,   gcc_dwarf_fcsr_mips64, gcc_dwarf_fcsr_mips64, LLDB_INVALID_REGNUM,    gdb_fcsr_mips64),
-    DEFINE_FPR (fir,   NULL,   gcc_dwarf_fir_mips64,  gcc_dwarf_fir_mips64,  LLDB_INVALID_REGNUM,    gdb_fir_mips64),
-    DEFINE_FPR (config5,   NULL,   gcc_dwarf_config5_mips64,  gcc_dwarf_config5_mips64,  LLDB_INVALID_REGNUM,    gdb_config5_mips64),
-    DEFINE_MSA (w0,    NULL,   gcc_dwarf_w0_mips64,   gcc_dwarf_w0_mips64,   LLDB_INVALID_REGNUM,    gdb_w0_mips64),
-    DEFINE_MSA (w1,    NULL,   gcc_dwarf_w1_mips64,   gcc_dwarf_w1_mips64,   LLDB_INVALID_REGNUM,    gdb_w1_mips64),
-    DEFINE_MSA (w2,    NULL,   gcc_dwarf_w2_mips64,   gcc_dwarf_w2_mips64,   LLDB_INVALID_REGNUM,    gdb_w2_mips64),
-    DEFINE_MSA (w3,    NULL,   gcc_dwarf_w3_mips64,   gcc_dwarf_w3_mips64,   LLDB_INVALID_REGNUM,    gdb_w3_mips64),
-    DEFINE_MSA (w4,    NULL,   gcc_dwarf_w4_mips64,   gcc_dwarf_w4_mips64,   LLDB_INVALID_REGNUM,    gdb_w4_mips64),
-    DEFINE_MSA (w5,    NULL,   gcc_dwarf_w5_mips64,   gcc_dwarf_w5_mips64,   LLDB_INVALID_REGNUM,    gdb_w5_mips64),
-    DEFINE_MSA (w6,    NULL,   gcc_dwarf_w6_mips64,   gcc_dwarf_w6_mips64,   LLDB_INVALID_REGNUM,    gdb_w6_mips64),
-    DEFINE_MSA (w7,    NULL,   gcc_dwarf_w7_mips64,   gcc_dwarf_w7_mips64,   LLDB_INVALID_REGNUM,    gdb_w7_mips64),
-    DEFINE_MSA (w8,    NULL,   gcc_dwarf_w8_mips64,   gcc_dwarf_w8_mips64,   LLDB_INVALID_REGNUM,    gdb_w8_mips64),
-    DEFINE_MSA (w9,    NULL,   gcc_dwarf_w9_mips64,   gcc_dwarf_w9_mips64,   LLDB_INVALID_REGNUM,    gdb_w9_mips64),
-    DEFINE_MSA (w10,   NULL,   gcc_dwarf_w10_mips64,  gcc_dwarf_w10_mips64,  LLDB_INVALID_REGNUM,    gdb_w10_mips64),
-    DEFINE_MSA (w11,   NULL,   gcc_dwarf_w11_mips64,  gcc_dwarf_w11_mips64,  LLDB_INVALID_REGNUM,    gdb_w11_mips64),
-    DEFINE_MSA (w12,   NULL,   gcc_dwarf_w12_mips64,  gcc_dwarf_w12_mips64,  LLDB_INVALID_REGNUM,    gdb_w12_mips64),
-    DEFINE_MSA (w13,   NULL,   gcc_dwarf_w13_mips64,  gcc_dwarf_w13_mips64,  LLDB_INVALID_REGNUM,    gdb_w13_mips64),
-    DEFINE_MSA (w14,   NULL,   gcc_dwarf_w14_mips64,  gcc_dwarf_w14_mips64,  LLDB_INVALID_REGNUM,    gdb_w14_mips64),
-    DEFINE_MSA (w15,   NULL,   gcc_dwarf_w15_mips64,  gcc_dwarf_w15_mips64,  LLDB_INVALID_REGNUM,    gdb_w15_mips64),
-    DEFINE_MSA (w16,   NULL,   gcc_dwarf_w16_mips64,  gcc_dwarf_w16_mips64,  LLDB_INVALID_REGNUM,    gdb_w16_mips64),
-    DEFINE_MSA (w17,   NULL,   gcc_dwarf_w17_mips64,  gcc_dwarf_w17_mips64,  LLDB_INVALID_REGNUM,    gdb_w17_mips64),
-    DEFINE_MSA (w18,   NULL,   gcc_dwarf_w18_mips64,  gcc_dwarf_w18_mips64,  LLDB_INVALID_REGNUM,    gdb_w18_mips64),
-    DEFINE_MSA (w19,   NULL,   gcc_dwarf_w19_mips64,  gcc_dwarf_w19_mips64,  LLDB_INVALID_REGNUM,    gdb_w19_mips64),
-    DEFINE_MSA (w20,   NULL,   gcc_dwarf_w10_mips64,  gcc_dwarf_w20_mips64,  LLDB_INVALID_REGNUM,    gdb_w20_mips64),
-    DEFINE_MSA (w21,   NULL,   gcc_dwarf_w21_mips64,  gcc_dwarf_w21_mips64,  LLDB_INVALID_REGNUM,    gdb_w21_mips64),
-    DEFINE_MSA (w22,   NULL,   gcc_dwarf_w22_mips64,  gcc_dwarf_w22_mips64,  LLDB_INVALID_REGNUM,    gdb_w22_mips64),
-    DEFINE_MSA (w23,   NULL,   gcc_dwarf_w23_mips64,  gcc_dwarf_w23_mips64,  LLDB_INVALID_REGNUM,    gdb_w23_mips64),
-    DEFINE_MSA (w24,   NULL,   gcc_dwarf_w24_mips64,  gcc_dwarf_w24_mips64,  LLDB_INVALID_REGNUM,    gdb_w24_mips64),
-    DEFINE_MSA (w25,   NULL,   gcc_dwarf_w25_mips64,  gcc_dwarf_w25_mips64,  LLDB_INVALID_REGNUM,    gdb_w25_mips64),
-    DEFINE_MSA (w26,   NULL,   gcc_dwarf_w26_mips64,  gcc_dwarf_w26_mips64,  LLDB_INVALID_REGNUM,    gdb_w26_mips64),
-    DEFINE_MSA (w27,   NULL,   gcc_dwarf_w27_mips64,  gcc_dwarf_w27_mips64,  LLDB_INVALID_REGNUM,    gdb_w27_mips64),
-    DEFINE_MSA (w28,   NULL,   gcc_dwarf_w28_mips64,  gcc_dwarf_w28_mips64,  LLDB_INVALID_REGNUM,    gdb_w28_mips64),
-    DEFINE_MSA (w29,   NULL,   gcc_dwarf_w29_mips64,  gcc_dwarf_w29_mips64,  LLDB_INVALID_REGNUM,    gdb_w29_mips64),
-    DEFINE_MSA (w30,   NULL,   gcc_dwarf_w30_mips64,  gcc_dwarf_w30_mips64,  LLDB_INVALID_REGNUM,    gdb_w30_mips64),
-    DEFINE_MSA (w31,   NULL,   gcc_dwarf_w31_mips64,  gcc_dwarf_w31_mips64,  LLDB_INVALID_REGNUM,    gdb_w31_mips64),
-    DEFINE_MSA_INFO (mcsr,  NULL,   gcc_dwarf_mcsr_mips64, gcc_dwarf_mcsr_mips64, LLDB_INVALID_REGNUM,    gdb_mcsr_mips64),
-    DEFINE_MSA_INFO (mir,   NULL,   gcc_dwarf_mir_mips64,  gcc_dwarf_mir_mips64,  LLDB_INVALID_REGNUM,    gdb_mir_mips64),
-    DEFINE_MSA_INFO (fcsr,  NULL,   gcc_dwarf_fcsr_mips64, gcc_dwarf_fcsr_mips64, LLDB_INVALID_REGNUM,    gdb_fcsr_mips64),
-    DEFINE_MSA_INFO (fir,   NULL,   gcc_dwarf_fir_mips64,  gcc_dwarf_fir_mips64,  LLDB_INVALID_REGNUM,    gdb_fir_mips64),
-    DEFINE_MSA_INFO (config5, NULL,   gcc_dwarf_config5_mips64,  gcc_dwarf_config5_mips64,  LLDB_INVALID_REGNUM,    gdb_config5_mips64)
-#endif
+    DEFINE_FPR (fp_reg[0],   f0,    NULL,   gcc_dwarf_f0_mips64,   gcc_dwarf_f0_mips64,   LLDB_INVALID_REGNUM,    gdb_f0_mips64),
+    DEFINE_FPR (fp_reg[1],   f1,    NULL,   gcc_dwarf_f1_mips64,   gcc_dwarf_f1_mips64,   LLDB_INVALID_REGNUM,    gdb_f1_mips64),
+    DEFINE_FPR (fp_reg[2],   f2,    NULL,   gcc_dwarf_f2_mips64,   gcc_dwarf_f2_mips64,   LLDB_INVALID_REGNUM,    gdb_f2_mips64),
+    DEFINE_FPR (fp_reg[3],   f3,    NULL,   gcc_dwarf_f3_mips64,   gcc_dwarf_f3_mips64,   LLDB_INVALID_REGNUM,    gdb_f3_mips64),
+    DEFINE_FPR (fp_reg[4],   f4,    NULL,   gcc_dwarf_f4_mips64,   gcc_dwarf_f4_mips64,   LLDB_INVALID_REGNUM,    gdb_f4_mips64),
+    DEFINE_FPR (fp_reg[5],   f5,    NULL,   gcc_dwarf_f5_mips64,   gcc_dwarf_f5_mips64,   LLDB_INVALID_REGNUM,    gdb_f5_mips64),
+    DEFINE_FPR (fp_reg[6],   f6,    NULL,   gcc_dwarf_f6_mips64,   gcc_dwarf_f6_mips64,   LLDB_INVALID_REGNUM,    gdb_f6_mips64),
+    DEFINE_FPR (fp_reg[7],   f7,    NULL,   gcc_dwarf_f7_mips64,   gcc_dwarf_f7_mips64,   LLDB_INVALID_REGNUM,    gdb_f7_mips64),
+    DEFINE_FPR (fp_reg[8],   f8,    NULL,   gcc_dwarf_f8_mips64,   gcc_dwarf_f8_mips64,   LLDB_INVALID_REGNUM,    gdb_f8_mips64),
+    DEFINE_FPR (fp_reg[9],   f9,    NULL,   gcc_dwarf_f9_mips64,   gcc_dwarf_f9_mips64,   LLDB_INVALID_REGNUM,    gdb_f9_mips64),
+    DEFINE_FPR (fp_reg[10],  f10,   NULL,   gcc_dwarf_f10_mips64,  gcc_dwarf_f10_mips64,  LLDB_INVALID_REGNUM,    gdb_f10_mips64),
+    DEFINE_FPR (fp_reg[11],  f11,   NULL,   gcc_dwarf_f11_mips64,  gcc_dwarf_f11_mips64,  LLDB_INVALID_REGNUM,    gdb_f11_mips64),
+    DEFINE_FPR (fp_reg[12],  f12,   NULL,   gcc_dwarf_f12_mips64,  gcc_dwarf_f12_mips64,  LLDB_INVALID_REGNUM,    gdb_f12_mips64),
+    DEFINE_FPR (fp_reg[13],  f13,   NULL,   gcc_dwarf_f13_mips64,  gcc_dwarf_f13_mips64,  LLDB_INVALID_REGNUM,    gdb_f13_mips64),
+    DEFINE_FPR (fp_reg[14],  f14,   NULL,   gcc_dwarf_f14_mips64,  gcc_dwarf_f14_mips64,  LLDB_INVALID_REGNUM,    gdb_f14_mips64),
+    DEFINE_FPR (fp_reg[15],  f15,   NULL,   gcc_dwarf_f15_mips64,  gcc_dwarf_f15_mips64,  LLDB_INVALID_REGNUM,    gdb_f15_mips64),
+    DEFINE_FPR (fp_reg[16],  f16,   NULL,   gcc_dwarf_f16_mips64,  gcc_dwarf_f16_mips64,  LLDB_INVALID_REGNUM,    gdb_f16_mips64),
+    DEFINE_FPR (fp_reg[17],  f17,   NULL,   gcc_dwarf_f17_mips64,  gcc_dwarf_f17_mips64,  LLDB_INVALID_REGNUM,    gdb_f17_mips64),
+    DEFINE_FPR (fp_reg[18],  f18,   NULL,   gcc_dwarf_f18_mips64,  gcc_dwarf_f18_mips64,  LLDB_INVALID_REGNUM,    gdb_f18_mips64),
+    DEFINE_FPR (fp_reg[19],  f19,   NULL,   gcc_dwarf_f19_mips64,  gcc_dwarf_f19_mips64,  LLDB_INVALID_REGNUM,    gdb_f19_mips64),
+    DEFINE_FPR (fp_reg[20],  f20,   NULL,   gcc_dwarf_f20_mips64,  gcc_dwarf_f20_mips64,  LLDB_INVALID_REGNUM,    gdb_f20_mips64),
+    DEFINE_FPR (fp_reg[21],  f21,   NULL,   gcc_dwarf_f21_mips64,  gcc_dwarf_f21_mips64,  LLDB_INVALID_REGNUM,    gdb_f21_mips64),
+    DEFINE_FPR (fp_reg[22],  f22,   NULL,   gcc_dwarf_f22_mips64,  gcc_dwarf_f22_mips64,  LLDB_INVALID_REGNUM,    gdb_f22_mips64),
+    DEFINE_FPR (fp_reg[23],  f23,   NULL,   gcc_dwarf_f23_mips64,  gcc_dwarf_f23_mips64,  LLDB_INVALID_REGNUM,    gdb_f23_mips64),
+    DEFINE_FPR (fp_reg[24],  f24,   NULL,   gcc_dwarf_f24_mips64,  gcc_dwarf_f24_mips64,  LLDB_INVALID_REGNUM,    gdb_f24_mips64),
+    DEFINE_FPR (fp_reg[25],  f25,   NULL,   gcc_dwarf_f25_mips64,  gcc_dwarf_f25_mips64,  LLDB_INVALID_REGNUM,    gdb_f25_mips64),
+    DEFINE_FPR (fp_reg[26],  f26,   NULL,   gcc_dwarf_f26_mips64,  gcc_dwarf_f26_mips64,  LLDB_INVALID_REGNUM,    gdb_f26_mips64),
+    DEFINE_FPR (fp_reg[27],  f27,   NULL,   gcc_dwarf_f27_mips64,  gcc_dwarf_f27_mips64,  LLDB_INVALID_REGNUM,    gdb_f27_mips64),
+    DEFINE_FPR (fp_reg[28],  f28,   NULL,   gcc_dwarf_f28_mips64,  gcc_dwarf_f28_mips64,  LLDB_INVALID_REGNUM,    gdb_f28_mips64),
+    DEFINE_FPR (fp_reg[29],  f29,   NULL,   gcc_dwarf_f29_mips64,  gcc_dwarf_f29_mips64,  LLDB_INVALID_REGNUM,    gdb_f29_mips64),
+    DEFINE_FPR (fp_reg[30],  f30,   NULL,   gcc_dwarf_f30_mips64,  gcc_dwarf_f30_mips64,  LLDB_INVALID_REGNUM,    gdb_f30_mips64),
+    DEFINE_FPR (fp_reg[31],  f31,   NULL,   gcc_dwarf_f31_mips64,  gcc_dwarf_f31_mips64,  LLDB_INVALID_REGNUM,    gdb_f31_mips64),
+    DEFINE_FPR (fcsr,        fcsr,  NULL,   gcc_dwarf_fcsr_mips64, gcc_dwarf_fcsr_mips64, LLDB_INVALID_REGNUM,    gdb_fcsr_mips64),
+    DEFINE_FPR (fir,         fir,   NULL,   gcc_dwarf_fir_mips64,  gcc_dwarf_fir_mips64,  LLDB_INVALID_REGNUM,    gdb_fir_mips64)
 };
-
 static_assert((sizeof(g_register_infos_mips64) / sizeof(g_register_infos_mips64[0])) == k_num_registers_mips64,
     "g_register_infos_mips64 has wrong number of register infos");
 
 #undef DEFINE_GPR
-#undef DEFINE_GPR_INFO
 #undef DEFINE_FPR
-#undef DEFINE_MSA
-#undef DEFINE_MSA_INFO
 #undef GPR_OFFSET
 #undef FPR_OFFSET
-#undef MSA_OFFSET
 
 #endif // DECLARE_REGISTER_INFOS_MIPS64_STRUCT
diff --git a/lldb/source/Plugins/Process/Utility/lldb-mips-freebsd-register-enums.h b/lldb/source/Plugins/Process/Utility/lldb-mips-freebsd-register-enums.h
deleted file mode 100644
index 69dc9efac32..00000000000
--- a/lldb/source/Plugins/Process/Utility/lldb-mips-freebsd-register-enums.h
+++ /dev/null
@@ -1,70 +0,0 @@
-//===-- lldb-mips-frebsd-register-enums.h -------------------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef lldb_mips_freebsd_register_enums_h
-#define lldb_mips_freebsd_register_enums_h
-
-namespace lldb_private
-{
-    // LLDB register codes (e.g. RegisterKind == eRegisterKindLLDB)
-
-    //---------------------------------------------------------------------------
-    // Internal codes for all mips registers.
-    //---------------------------------------------------------------------------
-    enum
-    {
-        k_first_gpr_mips64,
-        gpr_zero_mips64 = k_first_gpr_mips64,
-        gpr_r1_mips64,
-        gpr_r2_mips64,
-        gpr_r3_mips64,
-        gpr_r4_mips64,
-        gpr_r5_mips64,
-        gpr_r6_mips64,
-        gpr_r7_mips64,
-        gpr_r8_mips64,
-        gpr_r9_mips64,
-        gpr_r10_mips64,
-        gpr_r11_mips64,
-        gpr_r12_mips64,
-        gpr_r13_mips64,
-        gpr_r14_mips64,
-        gpr_r15_mips64,
-        gpr_r16_mips64,
-        gpr_r17_mips64,
-        gpr_r18_mips64,
-        gpr_r19_mips64,
-        gpr_r20_mips64,
-        gpr_r21_mips64,
-        gpr_r22_mips64,
-        gpr_r23_mips64,
-        gpr_r24_mips64,
-        gpr_r25_mips64,
-        gpr_r26_mips64,
-        gpr_r27_mips64,
-        gpr_gp_mips64,
-        gpr_sp_mips64,
-        gpr_r30_mips64,
-        gpr_ra_mips64,
-        gpr_sr_mips64,
-        gpr_mullo_mips64,
-        gpr_mulhi_mips64,
-        gpr_badvaddr_mips64,
-        gpr_cause_mips64,
-        gpr_pc_mips64,
-        gpr_ic_mips64,
-        gpr_dummy_mips64,
-        k_last_gpr_mips64 = gpr_dummy_mips64,
-
-        k_num_registers_mips64,
-
-        k_num_gpr_registers_mips64 = k_last_gpr_mips64 - k_first_gpr_mips64 + 1
-    };
-}
-#endif // #ifndef lldb_mips_freebsd_register_enums_h
diff --git a/lldb/source/Plugins/Process/Utility/lldb-mips-linux-register-enums.h b/lldb/source/Plugins/Process/Utility/lldb-mips64-register-enums.h
index 6c00025edfd..e8c93a6ec52 100644
--- a/lldb/source/Plugins/Process/Utility/lldb-mips-linux-register-enums.h
+++ b/lldb/source/Plugins/Process/Utility/lldb-mips64-register-enums.h
@@ -1,4 +1,4 @@
-//===-- lldb-mips-linux-register-enums.h -------------------------------*- C++ -*-===//
+//===-- lldb-mips64-register-enums.h -------------------------------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -7,8 +7,8 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef lldb_mips_linux_register_enums_h
-#define lldb_mips_linux_register_enums_h
+#ifndef lldb_mips64_register_enums_h
+#define lldb_mips64_register_enums_h
 
 namespace lldb_private
 {
@@ -52,15 +52,14 @@ namespace lldb_private
         gpr_sp_mips,
         gpr_r30_mips,
         gpr_ra_mips,
-        gpr_sr_mips,
         gpr_mullo_mips,
         gpr_mulhi_mips,
+        gpr_pc_mips,
         gpr_badvaddr_mips,
+        gpr_sr_mips,
         gpr_cause_mips,
-        gpr_pc_mips,
-        gpr_config5_mips,
 
-        k_last_gpr_mips = gpr_config5_mips,
+        k_last_gpr_mips = gpr_cause_mips,
 
         k_first_fpr_mips,
         fpr_f0_mips = k_first_fpr_mips,
@@ -97,55 +96,12 @@ namespace lldb_private
         fpr_f31_mips,
         fpr_fcsr_mips,
         fpr_fir_mips,
-        fpr_config5_mips,
-        k_last_fpr_mips = fpr_config5_mips,
-
-        k_first_msa_mips,
-        msa_w0_mips = k_first_msa_mips,
-        msa_w1_mips,
-        msa_w2_mips,
-        msa_w3_mips,
-        msa_w4_mips,
-        msa_w5_mips,
-        msa_w6_mips,
-        msa_w7_mips,
-        msa_w8_mips,
-        msa_w9_mips,
-        msa_w10_mips,
-        msa_w11_mips,
-        msa_w12_mips,
-        msa_w13_mips,
-        msa_w14_mips,
-        msa_w15_mips,
-        msa_w16_mips,
-        msa_w17_mips,
-        msa_w18_mips,
-        msa_w19_mips,
-        msa_w20_mips,
-        msa_w21_mips,
-        msa_w22_mips,
-        msa_w23_mips,
-        msa_w24_mips,
-        msa_w25_mips,
-        msa_w26_mips,
-        msa_w27_mips,
-        msa_w28_mips,
-        msa_w29_mips,
-        msa_w30_mips,
-        msa_w31_mips,
-        msa_fcsr_mips,
-        msa_fir_mips,
-        msa_mcsr_mips,
-        msa_mir_mips,
-        msa_config5_mips,
-        k_last_msa_mips = msa_config5_mips,
+        k_last_fpr_mips = fpr_fir_mips,
 
         k_num_registers_mips,
-
         k_num_gpr_registers_mips = k_last_gpr_mips - k_first_gpr_mips + 1,
         k_num_fpr_registers_mips = k_last_fpr_mips - k_first_fpr_mips + 1,
-        k_num_msa_registers_mips = k_last_msa_mips - k_first_msa_mips + 1,
-        k_num_user_registers_mips = k_num_gpr_registers_mips + k_num_fpr_registers_mips + k_num_msa_registers_mips
+        k_num_user_registers_mips = k_num_gpr_registers_mips + k_num_fpr_registers_mips,
     };
 
     //---------------------------------------------------------------------------
@@ -186,14 +142,16 @@ namespace lldb_private
         gpr_sp_mips64,
         gpr_r30_mips64,
         gpr_ra_mips64,
-        gpr_sr_mips64,
         gpr_mullo_mips64,
         gpr_mulhi_mips64,
+        gpr_pc_mips64,
         gpr_badvaddr_mips64,
+        gpr_sr_mips64,
         gpr_cause_mips64,
-        gpr_pc_mips64,
-        gpr_config5_mips64,
-        k_last_gpr_mips64 = gpr_config5_mips64,
+        gpr_ic_mips64,
+        gpr_dummy_mips64,
+
+        k_last_gpr_mips64 = gpr_dummy_mips64,
 
         k_first_fpr_mips64,
         fpr_f0_mips64 = k_first_fpr_mips64,
@@ -230,56 +188,12 @@ namespace lldb_private
         fpr_f31_mips64,
         fpr_fcsr_mips64,
         fpr_fir_mips64,
-        fpr_config5_mips64,
-        k_last_fpr_mips64 = fpr_config5_mips64,
-
-        k_first_msa_mips64,
-        msa_w0_mips64 = k_first_msa_mips64,
-        msa_w1_mips64,
-        msa_w2_mips64,
-        msa_w3_mips64,
-        msa_w4_mips64,
-        msa_w5_mips64,
-        msa_w6_mips64,
-        msa_w7_mips64,
-        msa_w8_mips64,
-        msa_w9_mips64,
-        msa_w10_mips64,
-        msa_w11_mips64,
-        msa_w12_mips64,
-        msa_w13_mips64,
-        msa_w14_mips64,
-        msa_w15_mips64,
-        msa_w16_mips64,
-        msa_w17_mips64,
-        msa_w18_mips64,
-        msa_w19_mips64,
-        msa_w20_mips64,
-        msa_w21_mips64,
-        msa_w22_mips64,
-        msa_w23_mips64,
-        msa_w24_mips64,
-        msa_w25_mips64,
-        msa_w26_mips64,
-        msa_w27_mips64,
-        msa_w28_mips64,
-        msa_w29_mips64,
-        msa_w30_mips64,
-        msa_w31_mips64,
-        msa_fcsr_mips64,
-        msa_fir_mips64,
-        msa_mcsr_mips64,
-        msa_mir_mips64,
-        msa_config5_mips64,
-        k_last_msa_mips64 = msa_config5_mips64,
+        k_last_fpr_mips64 = fpr_fir_mips64,
 
         k_num_registers_mips64,
-
         k_num_gpr_registers_mips64 = k_last_gpr_mips64 - k_first_gpr_mips64 + 1,
         k_num_fpr_registers_mips64 = k_last_fpr_mips64 - k_first_fpr_mips64 + 1,
-        k_num_msa_registers_mips64 = k_last_msa_mips64 - k_first_msa_mips64 + 1,
-        k_num_user_registers_mips64 = k_num_gpr_registers_mips64 + k_num_fpr_registers_mips64 + k_num_msa_registers_mips64
     };
 }
 
-#endif // #ifndef lldb_mips_linux_register_enums_h
+#endif // #ifndef fpr_mips64_register_enums_h