Index: lib/Target/AMDGPU/SMInstructions.td
===================================================================
--- lib/Target/AMDGPU/SMInstructions.td
+++ lib/Target/AMDGPU/SMInstructions.td
@@ -389,16 +389,24 @@
   }
 }
 
+class SMEM_Real_Store_vi <bits<8> op, SM_Pseudo ps> : SMEM_Real_vi <op, ps> {
+  // encoding
+  bits<7> sdata;
+
+  let sdst = ?;
+  let Inst{12-6}  = !if(ps.has_sdst, sdata{6-0}, ?);
+}
+
 multiclass SM_Real_Stores_vi<bits<8> op, string ps,
                             SM_Store_Pseudo immPs = !cast<SM_Store_Pseudo>(ps#_IMM),
                             SM_Store_Pseudo sgprPs = !cast<SM_Store_Pseudo>(ps#_SGPR)> {
   // FIXME: The operand name $offset is inconsistent with $soff used
   // in the pseudo
-  def _IMM_vi : SMEM_Real_vi <op, immPs> {
+  def _IMM_vi : SMEM_Real_Store_vi <op, immPs> {
     let InOperandList = (ins immPs.SrcClass:$sdata, immPs.BaseClass:$sbase, smrd_offset_20:$offset, GLC:$glc);
   }
 
-  def _SGPR_vi : SMEM_Real_vi <op, sgprPs> {
+  def _SGPR_vi : SMEM_Real_Store_vi <op, sgprPs> {
     let InOperandList = (ins sgprPs.SrcClass:$sdata, sgprPs.BaseClass:$sbase, SReg_32:$offset, GLC:$glc);
   }
 }
@@ -422,6 +430,7 @@
 defm S_BUFFER_STORE_DWORDX2  : SM_Real_Stores_vi <0x19, "S_BUFFER_STORE_DWORDX2">;
 defm S_BUFFER_STORE_DWORDX4  : SM_Real_Stores_vi <0x1a, "S_BUFFER_STORE_DWORDX4">;
 
+// This instructions use same encoding
 def S_DCACHE_INV_vi         : SMEM_Real_vi <0x20, S_DCACHE_INV>;
 def S_DCACHE_WB_vi          : SMEM_Real_vi <0x21, S_DCACHE_WB>;
 def S_DCACHE_INV_VOL_vi     : SMEM_Real_vi <0x22, S_DCACHE_INV_VOL>;
Index: test/MC/AMDGPU/smem.s
===================================================================
--- test/MC/AMDGPU/smem.s
+++ test/MC/AMDGPU/smem.s
@@ -1,35 +1,38 @@
+// RUN: not llvm-mc -arch=amdgcn -mcpu=tahiti -show-encoding %s | FileCheck -check-prefix=GCN -check-prefix=SICI %s
+// RUN: not llvm-mc -arch=amdgcn -mcpu=kaveri -show-encoding %s | FileCheck -check-prefix=GCN -check-prefix=SICI %s
 // RUN: llvm-mc -arch=amdgcn -mcpu=tonga -show-encoding %s | FileCheck -check-prefix=GCN -check-prefix=VI %s
-// RUN: not llvm-mc -arch=amdgcn -mcpu=tahiti %s 2>&1 | FileCheck -check-prefix=NOSI %s
-// RUN: not llvm-mc -arch=amdgcn -mcpu=bonaire %s 2>&1 | FileCheck -check-prefix=NOSI %s
+// RUN: not llvm-mc -arch=amdgcn -mcpu=tahiti %s 2>&1 | FileCheck -check-prefix=NOSICI %s
+// RUN: not llvm-mc -arch=amdgcn -mcpu=bonaire %s 2>&1 | FileCheck -check-prefix=NOSICI %s
+// RUN: not llvm-mc -arch=amdgcn -mcpu=kaveri %s 2>&1 | FileCheck -check-prefix=NOSICI %s
 
 s_dcache_wb
 // VI: s_dcache_wb  ; encoding: [0x00,0x00,0x84,0xc0,0x00,0x00,0x00,0x00]
-// NOSI: error: instruction not supported on this GPU
+// NOSICI: error: instruction not supported on this GPU
 
 s_dcache_wb_vol
 // VI: s_dcache_wb_vol ; encoding: [0x00,0x00,0x8c,0xc0,0x00,0x00,0x00,0x00]
-// NOSI: error: instruction not supported on this GPU
+// NOSICI: error: instruction not supported on this GPU
 
 s_memrealtime s[4:5]
 // VI: s_memrealtime s[4:5] ; encoding: [0x00,0x01,0x94,0xc0,0x00,0x00,0x00,0x00]
-// NOSI: error: instruction not supported on this GPU
+// NOSICI: error: instruction not supported on this GPU
 
 // FIXME: Should error about instruction on GPU
 s_store_dword s1, s[2:3], 0xfc
 // VI: s_store_dword s1, s[2:3], 0xfc  ; encoding: [0x41,0x00,0x42,0xc0,0xfc,0x00,0x00,0x00]
-// NOSI: error: instruction not supported on this GPU
+// NOSICI: error: instruction not supported on this GPU
 
 s_store_dword s1, s[2:3], 0xfc glc
 // VI: s_store_dword s1, s[2:3], 0xfc glc ; encoding: [0x41,0x00,0x43,0xc0,0xfc,0x00,0x00,0x00]
-// NOSI: error: invalid operand for instruction
+// NOSICI: error: invalid operand for instruction
 
 s_store_dword s1, s[2:3], s4
 // VI: s_store_dword s1, s[2:3], s4    ; encoding: [0x41,0x00,0x40,0xc0,0x04,0x00,0x00,0x00]
-// NOSI: error: instruction not supported on this GPU
+// NOSICI: error: instruction not supported on this GPU
 
 s_store_dword s1, s[2:3], s4 glc
 // VI: s_store_dword s1, s[2:3], s4 glc ; encoding: [0x41,0x00,0x41,0xc0,0x04,0x00,0x00,0x00]
-// NOSI: error: invalid operand for instruction
+// NOSICI: error: invalid operand for instruction
 
 // FIXME: Should error on SI instead of silently ignoring glc
 s_load_dword s1, s[2:3], 0xfc glc
@@ -37,3 +40,27 @@
 
 s_load_dword s1, s[2:3], s4 glc
 // VI: s_load_dword s1, s[2:3], s4 glc ; encoding: [0x41,0x00,0x01,0xc0,0x04,0x00,0x00,0x00]
+
+s_buffer_store_dword s10, s[92:95], m0
+// VI: s_buffer_store_dword s10, s[92:95], m0 ; encoding: [0xae,0x02,0x60,0xc0,0x7c,0x00,0x00,0x00]
+// NOSICI: error: instruction not supported on this GPU
+
+s_buffer_store_dwordx2 s[10:11], s[92:95], m0
+// VI: s_buffer_store_dwordx2 s[10:11], s[92:95], m0 ; encoding: [0xae,0x02,0x64,0xc0,0x7c,0x00,0x00,0x00]
+// NOSICI: error: instruction not supported on this GPU
+
+s_buffer_store_dwordx4 s[8:11], s[92:95], m0 glc
+// VI: s_buffer_store_dwordx4 s[8:11], s[92:95], m0 glc ; encoding: [0x2e,0x02,0x69,0xc0,0x7c,0x00,0x00,0x00]
+// NOSICI: error: invalid operand for instruction
+
+s_buffer_load_dword s10, s[92:95], m0
+// VI: s_buffer_load_dword s10, s[92:95], m0 ; encoding: [0xae,0x02,0x20,0xc0,0x7c,0x00,0x00,0x00]
+// SICI: s_buffer_load_dword s10, s[92:95], m0 ; encoding: [0x7c,0x5c,0x05,0xc2]
+
+s_buffer_load_dwordx2 s[10:11], s[92:95], m0
+// VI: s_buffer_load_dwordx2 s[10:11], s[92:95], m0 ; encoding: [0xae,0x02,0x24,0xc0,0x7c,0x00,0x00,0x00]
+// SICI: s_buffer_load_dwordx2 s[10:11], s[92:95], m0 ; encoding: [0x7c,0x5c,0x45,0xc2]
+
+// FIXME: Should error on SI instead of silently ignoring glc
+s_buffer_load_dwordx4 s[8:11], s[92:95], m0 glc
+// VI: s_buffer_load_dwordx4 s[8:11], s[92:95], m0 glc ; encoding: [0x2e,0x02,0x29,0xc0,0x7c,0x00,0x00,0x00]
Index: test/MC/Disassembler/AMDGPU/smem_vi.txt
===================================================================
--- test/MC/Disassembler/AMDGPU/smem_vi.txt
+++ test/MC/Disassembler/AMDGPU/smem_vi.txt
@@ -8,3 +8,39 @@
 
 # VI: s_memrealtime s[4:5] ; encoding: [0x00,0x01,0x94,0xc0,0x00,0x00,0x00,0x00]
 0x00 0x01 0x94 0xc0 0x00 0x00 0x00 0x00
+
+# VI: s_store_dword s1, s[2:3], 0xfc  ; encoding: [0x41,0x00,0x42,0xc0,0xfc,0x00,0x00,0x00]
+0x41 0x00 0x42 0xc0 0xfc 0x00 0x00 0x00
+
+# VI: s_store_dword s1, s[2:3], 0xfc glc ; encoding: [0x41,0x00,0x43,0xc0,0xfc,0x00,0x00,0x00]
+0x41 0x00 0x43 0xc0 0xfc 0x00 0x00 0x00
+
+# VI: s_store_dword s1, s[2:3], s4    ; encoding: [0x41,0x00,0x40,0xc0,0x04,0x00,0x00,0x00]
+0x41 0x00 0x40 0xc0 0x04 0x00 0x00 0x00
+
+# VI: s_store_dword s1, s[2:3], s4 glc ; encoding: [0x41,0x00,0x41,0xc0,0x04,0x00,0x00,0x00]
+0x41 0x00 0x41 0xc0 0x04 0x00 0x00 0x00
+
+# VI: s_load_dword s1, s[2:3], 0xfc glc ; encoding: [0x41,0x00,0x03,0xc0,0xfc,0x00,0x00,0x00]
+0x41 0x00 0x03 0xc0 0xfc 0x00 0x00 0x00
+
+# VI: s_load_dword s1, s[2:3], s4 glc ; encoding: [0x41,0x00,0x01,0xc0,0x04,0x00,0x00,0x00]
+0x41 0x00 0x01 0xc0 0x04 0x00 0x00 0x00
+
+# VI: s_buffer_store_dword s10, s[92:95], m0 ; encoding: [0xae,0x02,0x60,0xc0,0x7c,0x00,0x00,0x00]
+0xae 0x02 0x60 0xc0 0x7c 0x00 0x00 0x00
+
+# VI: s_buffer_store_dwordx2 s[10:11], s[92:95], m0 ; encoding: [0xae,0x02,0x64,0xc0,0x7c,0x00,0x00,0x00]
+0xae 0x02 0x64 0xc0 0x7c 0x00 0x00 0x00
+
+# VI: s_buffer_store_dwordx4 s[8:11], s[92:95], m0 glc ; encoding: [0x2e,0x02,0x69,0xc0,0x7c,0x00,0x00,0x00]
+0x2e 0x02 0x69 0xc0 0x7c 0x00 0x00 0x00
+
+# VI: s_buffer_load_dword s10, s[92:95], m0 ; encoding: [0xae,0x02,0x20,0xc0,0x7c,0x00,0x00,0x00]
+0xae 0x02 0x20 0xc0 0x7c 0x00 0x00 0x00
+
+# VI: s_buffer_load_dwordx2 s[10:11], s[92:95], m0 ; encoding: [0xae,0x02,0x24,0xc0,0x7c,0x00,0x00,0x00]
+0xae 0x02 0x24 0xc0 0x7c 0x00 0x00 0x00
+
+# VI: s_buffer_load_dwordx4 s[8:11], s[92:95], m0 glc ; encoding: [0x2e,0x02,0x29,0xc0,0x7c,0x00,0x00,0x00]
+0x2e 0x02 0x29 0xc0 0x7c 0x00 0x00 0x00