R600/SI: Add InstrMapping for noret atomics.

[arsenm]

Summary

Only handles LDS atomics for now, and will be used
to replace atomics with no uses with the no return
versions.

[arsenm]

r217378

lib/Target/R600/SIInstrInfo.h

   int getCommuteOrig(uint16_t Opcode);
   int getMCOpcode(uint16_t Opcode, unsigned Gen);
   int getAddr64Inst(uint16_t Opcode);
+  int getAtomicRetOp(uint16_t Opcode);
+  int getAtomicNoRetOp(uint16_t Opcode);
 
   const uint64_t RSRC_DATA_FORMAT = 0xf00000000000LL;
   const uint64_t RSRC_TID_ENABLE = 1LL << 55;

lib/Target/R600/SIInstrInfo.td

   bit IsOrig = isOrig;
 }
 
+class AtomicNoRet <string noRetOp, bit isRet> {
+  string NoRetOp = noRetOp;
+  bit IsRet = isRet;
+}
+
 class SIMCInstr <string pseudo, int subtarget> {
   string PseudoInstr = pseudo;
   int Subtarget = subtarget;

 }
 
 // 1 address, 1 data.
-class DS_1A1D_RET <bits<8> op, string asm, RegisterClass rc> : DS_1A <
+class DS_1A1D_RET <bits<8> op, string asm, RegisterClass rc, string noRetOp = ""> : DS_1A <
   op,
   (outs rc:$vdst),
   (ins i1imm:$gds, VReg_32:$addr, rc:$data0, u16imm:$offset),
-  asm#" $vdst, $addr, $data0, $offset, [M0]",
-  []> {
+  asm#" $vdst, $addr, $data0, $offset, [M0]", []>,
+  AtomicNoRet<noRetOp, 1> {
 
   let data1 = 0;
   let mayStore = 1;

 }
 
 // 1 address, 2 data.
-class DS_1A2D_RET <bits<8> op, string asm, RegisterClass rc> : DS_1A <
+class DS_1A2D_RET <bits<8> op, string asm, RegisterClass rc, string noRetOp = ""> : DS_1A <
   op,
   (outs rc:$vdst),
   (ins i1imm:$gds, VReg_32:$addr, rc:$data0, rc:$data1, u16imm:$offset),
   asm#" $vdst, $addr, $data0, $data1, $offset, [M0]",
-  []> {
+  []>,
+  AtomicNoRet<noRetOp, 1> {
   let mayStore = 1;
   let mayLoad = 1;
 }
 
 // 1 address, 2 data.
-class DS_1A2D_NORET <bits<8> op, string asm, RegisterClass rc> : DS_1A <
+class DS_1A2D_NORET <bits<8> op, string asm, RegisterClass rc, string noRetOp = asm> : DS_1A <
   op,
   (outs),
   (ins i1imm:$gds, VReg_32:$addr, rc:$data0, rc:$data1, u16imm:$offset),
   asm#" $addr, $data0, $data1, $offset, [M0]",
-  []> {
+  []>,
+  AtomicNoRet<noRetOp, 0> {
   let mayStore = 1;
   let mayLoad = 1;
 }
 
 // 1 address, 1 data.
-class DS_1A1D_NORET <bits<8> op, string asm, RegisterClass rc> : DS_1A <
+class DS_1A1D_NORET <bits<8> op, string asm, RegisterClass rc, string noRetOp = asm> : DS_1A <
   op,
   (outs),
   (ins i1imm:$gds, VReg_32:$addr, rc:$data0, u16imm:$offset),
   asm#" $addr, $data0, $offset, [M0]",
-  []> {
+  []>,
+  AtomicNoRet<noRetOp, 0> {
 
   let data1 = 0;
   let mayStore = 1;

   let ValueCols = [["1"]];
 }
 
+// Maps an atomic opcode to its version with a return value.
+def getAtomicRetOp : InstrMapping {
+  let FilterClass = "AtomicNoRet";
+  let RowFields = ["NoRetOp"];
+  let ColFields = ["IsRet"];
+  let KeyCol = ["0"];
+  let ValueCols = [["1"]];
+}
+
+// Maps an atomic opcode to its returnless version.
+def getAtomicNoRetOp : InstrMapping {
+  let FilterClass = "AtomicNoRet";
+  let RowFields = ["NoRetOp"];
+  let ColFields = ["IsRet"];
+  let KeyCol = ["1"];
+  let ValueCols = [["0"]];
+}
+
 include "SIInstructions.td"

lib/Target/R600/SIInstructions.td

 def DS_MIN_F32 : DS_1A1D_NORET <0x12, "DS_MIN_F32", VReg_32>;
 def DS_MAX_F32 : DS_1A1D_NORET <0x13, "DS_MAX_F32", VReg_32>;
 
-def DS_ADD_RTN_U32 : DS_1A1D_RET <0x20, "DS_ADD_RTN_U32", VReg_32>;
-def DS_SUB_RTN_U32 : DS_1A1D_RET <0x21, "DS_SUB_RTN_U32", VReg_32>;
-def DS_RSUB_RTN_U32 : DS_1A1D_RET <0x22, "DS_RSUB_RTN_U32", VReg_32>;
-def DS_INC_RTN_U32 : DS_1A1D_RET <0x23, "DS_INC_RTN_U32", VReg_32>;
-def DS_DEC_RTN_U32 : DS_1A1D_RET <0x24, "DS_DEC_RTN_U32", VReg_32>;
-def DS_MIN_RTN_I32 : DS_1A1D_RET <0x25, "DS_MIN_RTN_I32", VReg_32>;
-def DS_MAX_RTN_I32 : DS_1A1D_RET <0x26, "DS_MAX_RTN_I32", VReg_32>;
-def DS_MIN_RTN_U32 : DS_1A1D_RET <0x27, "DS_MIN_RTN_U32", VReg_32>;
-def DS_MAX_RTN_U32 : DS_1A1D_RET <0x28, "DS_MAX_RTN_U32", VReg_32>;
-def DS_AND_RTN_B32 : DS_1A1D_RET <0x29, "DS_AND_RTN_B32", VReg_32>;
-def DS_OR_RTN_B32 : DS_1A1D_RET <0x2a, "DS_OR_RTN_B32", VReg_32>;
-def DS_XOR_RTN_B32 : DS_1A1D_RET <0x2b, "DS_XOR_RTN_B32", VReg_32>;
-def DS_MSKOR_RTN_B32 : DS_1A1D_RET <0x2c, "DS_MSKOR_RTN_B32", VReg_32>;
-def DS_WRXCHG_RTN_B32 : DS_1A1D_RET <0x2d, "DS_WRXCHG_RTN_B32", VReg_32>;
-//def DS_WRXCHG2_RTN_B32 : DS_2A0D_RET <0x2e, "DS_WRXCHG2_RTN_B32", VReg_32>;
-//def DS_WRXCHG2ST64_RTN_B32 : DS_2A0D_RET <0x2f, "DS_WRXCHG2_RTN_B32", VReg_32>;
-def DS_CMPST_RTN_B32 : DS_1A2D_RET <0x30, "DS_CMPST_RTN_B32", VReg_32>;
-def DS_CMPST_RTN_F32 : DS_1A2D_RET <0x31, "DS_CMPST_RTN_F32", VReg_32>;
-def DS_MIN_RTN_F32 : DS_1A1D_RET <0x32, "DS_MIN_RTN_F32", VReg_32>;
-def DS_MAX_RTN_F32 : DS_1A1D_RET <0x33, "DS_MAX_RTN_F32", VReg_32>;
+def DS_ADD_RTN_U32 : DS_1A1D_RET <0x20, "DS_ADD_RTN_U32", VReg_32, "DS_ADD_U32">;
+def DS_SUB_RTN_U32 : DS_1A1D_RET <0x21, "DS_SUB_RTN_U32", VReg_32, "DS_SUB_U32">;
+def DS_RSUB_RTN_U32 : DS_1A1D_RET <0x22, "DS_RSUB_RTN_U32", VReg_32, "DS_RSUB_U32">;
+def DS_INC_RTN_U32 : DS_1A1D_RET <0x23, "DS_INC_RTN_U32", VReg_32, "DS_INC_U32">;
+def DS_DEC_RTN_U32 : DS_1A1D_RET <0x24, "DS_DEC_RTN_U32", VReg_32, "DS_DEC_U32">;
+def DS_MIN_RTN_I32 : DS_1A1D_RET <0x25, "DS_MIN_RTN_I32", VReg_32, "DS_MIN_I32">;
+def DS_MAX_RTN_I32 : DS_1A1D_RET <0x26, "DS_MAX_RTN_I32", VReg_32, "DS_MAX_I32">;
+def DS_MIN_RTN_U32 : DS_1A1D_RET <0x27, "DS_MIN_RTN_U32", VReg_32, "DS_MIN_U32">;
+def DS_MAX_RTN_U32 : DS_1A1D_RET <0x28, "DS_MAX_RTN_U32", VReg_32, "DS_MAX_U32">;
+def DS_AND_RTN_B32 : DS_1A1D_RET <0x29, "DS_AND_RTN_B32", VReg_32, "DS_AND_B32">;
+def DS_OR_RTN_B32 : DS_1A1D_RET <0x2a, "DS_OR_RTN_B32", VReg_32, "DS_OR_B32">;
+def DS_XOR_RTN_B32 : DS_1A1D_RET <0x2b, "DS_XOR_RTN_B32", VReg_32, "DS_XOR_B32">;
+def DS_MSKOR_RTN_B32 : DS_1A1D_RET <0x2c, "DS_MSKOR_RTN_B32", VReg_32, "DS_MSKOR_B32">;
+def DS_WRXCHG_RTN_B32 : DS_1A1D_RET <0x2d, "DS_WRXCHG_RTN_B32", VReg_32, "DS_WRXCHG_B32">;
+//def DS_WRXCHG2_RTN_B32 : DS_2A0D_RET <0x2e, "DS_WRXCHG2_RTN_B32", VReg_32, "DS_WRXCHG2_B32">;
+//def DS_WRXCHG2ST64_RTN_B32 : DS_2A0D_RET <0x2f, "DS_WRXCHG2_RTN_B32", VReg_32, "DS_WRXCHG2ST64_B32">;
+def DS_CMPST_RTN_B32 : DS_1A2D_RET <0x30, "DS_CMPST_RTN_B32", VReg_32, "DS_CMPST_B32">;
+def DS_CMPST_RTN_F32 : DS_1A2D_RET <0x31, "DS_CMPST_RTN_F32", VReg_32, "DS_CMPST_F32">;
+def DS_MIN_RTN_F32 : DS_1A1D_RET <0x32, "DS_MIN_RTN_F32", VReg_32, "DS_MIN_F32">;
+def DS_MAX_RTN_F32 : DS_1A1D_RET <0x33, "DS_MAX_RTN_F32", VReg_32, "DS_MAX_F32">;
 
 let SubtargetPredicate = isCI in {
-def DS_WRAP_RTN_F32 : DS_1A1D_RET <0x34, "DS_WRAP_RTN_F32", VReg_32>;
+def DS_WRAP_RTN_F32 : DS_1A1D_RET <0x34, "DS_WRAP_RTN_F32", VReg_32, "DS_WRAP_F32">;
 } // End isCI
 
 

 def DS_MIN_F64 : DS_1A1D_NORET <0x52, "DS_MIN_F64", VReg_64>;
 def DS_MAX_F64 : DS_1A1D_NORET <0x53, "DS_MAX_F64", VReg_64>;
 
-def DS_ADD_RTN_U64 : DS_1A1D_RET <0x60, "DS_ADD_RTN_U64", VReg_64>;
-def DS_SUB_RTN_U64 : DS_1A1D_RET <0x61, "DS_SUB_RTN_U64", VReg_64>;
-def DS_RSUB_RTN_U64 : DS_1A1D_RET <0x62, "DS_RSUB_RTN_U64", VReg_64>;
-def DS_INC_RTN_U64 : DS_1A1D_RET <0x63, "DS_INC_RTN_U64", VReg_64>;
-def DS_DEC_RTN_U64 : DS_1A1D_RET <0x64, "DS_DEC_RTN_U64", VReg_64>;
-def DS_MIN_RTN_I64 : DS_1A1D_RET <0x65, "DS_MIN_RTN_I64", VReg_64>;
-def DS_MAX_RTN_I64 : DS_1A1D_RET <0x66, "DS_MAX_RTN_I64", VReg_64>;
-def DS_MIN_RTN_U64 : DS_1A1D_RET <0x67, "DS_MIN_RTN_U64", VReg_64>;
-def DS_MAX_RTN_U64 : DS_1A1D_RET <0x68, "DS_MAX_RTN_U64", VReg_64>;
-def DS_AND_RTN_B64 : DS_1A1D_RET <0x69, "DS_AND_RTN_B64", VReg_64>;
-def DS_OR_RTN_B64 : DS_1A1D_RET <0x6a, "DS_OR_RTN_B64", VReg_64>;
-def DS_XOR_RTN_B64 : DS_1A1D_RET <0x6b, "DS_XOR_RTN_B64", VReg_64>;
-def DS_MSKOR_RTN_B64 : DS_1A1D_RET <0x6c, "DS_MSKOR_RTN_B64", VReg_64>;
-def DS_WRXCHG_RTN_B64 : DS_1A1D_RET <0x6d, "DS_WRXCHG_RTN_B64", VReg_64>;
-//def DS_WRXCHG2_RTN_B64 : DS_2A0D_RET <0x6e, "DS_WRXCHG2_RTN_B64", VReg_64>;
-//def DS_WRXCHG2ST64_RTN_B64 : DS_2A0D_RET <0x6f, "DS_WRXCHG2_RTN_B64", VReg_64>;
-def DS_CMPST_RTN_B64 : DS_1A2D_RET <0x70, "DS_CMPST_RTN_B64", VReg_64>;
-def DS_CMPST_RTN_F64 : DS_1A2D_RET <0x71, "DS_CMPST_RTN_F64", VReg_64>;
-def DS_MIN_RTN_F64 : DS_1A1D_RET <0x72, "DS_MIN_F64", VReg_64>;
-def DS_MAX_RTN_F64 : DS_1A1D_RET <0x73, "DS_MAX_F64", VReg_64>;
+def DS_ADD_RTN_U64 : DS_1A1D_RET <0x60, "DS_ADD_RTN_U64", VReg_64, "DS_ADD_U64">;
+def DS_SUB_RTN_U64 : DS_1A1D_RET <0x61, "DS_SUB_RTN_U64", VReg_64, "DS_SUB_U64">;
+def DS_RSUB_RTN_U64 : DS_1A1D_RET <0x62, "DS_RSUB_RTN_U64", VReg_64, "DS_RSUB_U64">;
+def DS_INC_RTN_U64 : DS_1A1D_RET <0x63, "DS_INC_RTN_U64", VReg_64, "DS_INC_U64">;
+def DS_DEC_RTN_U64 : DS_1A1D_RET <0x64, "DS_DEC_RTN_U64", VReg_64, "DS_DEC_U64">;
+def DS_MIN_RTN_I64 : DS_1A1D_RET <0x65, "DS_MIN_RTN_I64", VReg_64, "DS_MIN_I64">;
+def DS_MAX_RTN_I64 : DS_1A1D_RET <0x66, "DS_MAX_RTN_I64", VReg_64, "DS_MAX_I64">;
+def DS_MIN_RTN_U64 : DS_1A1D_RET <0x67, "DS_MIN_RTN_U64", VReg_64, "DS_MIN_U64">;
+def DS_MAX_RTN_U64 : DS_1A1D_RET <0x68, "DS_MAX_RTN_U64", VReg_64, "DS_MAX_U64">;
+def DS_AND_RTN_B64 : DS_1A1D_RET <0x69, "DS_AND_RTN_B64", VReg_64, "DS_AND_B64">;
+def DS_OR_RTN_B64 : DS_1A1D_RET <0x6a, "DS_OR_RTN_B64", VReg_64, "DS_OR_B64">;
+def DS_XOR_RTN_B64 : DS_1A1D_RET <0x6b, "DS_XOR_RTN_B64", VReg_64, "DS_XOR_B64">;
+def DS_MSKOR_RTN_B64 : DS_1A1D_RET <0x6c, "DS_MSKOR_RTN_B64", VReg_64, "DS_MSKOR_B64">;
+def DS_WRXCHG_RTN_B64 : DS_1A1D_RET <0x6d, "DS_WRXCHG_RTN_B64", VReg_64, "DS_WRXCHG_B64">;
+//def DS_WRXCHG2_RTN_B64 : DS_2A0D_RET <0x6e, "DS_WRXCHG2_RTN_B64", VReg_64, "DS_WRXCHG2_B64">;
+//def DS_WRXCHG2ST64_RTN_B64 : DS_2A0D_RET <0x6f, "DS_WRXCHG2_RTN_B64", VReg_64, "DS_WRXCHG2ST64_B64">;
+def DS_CMPST_RTN_B64 : DS_1A2D_RET <0x70, "DS_CMPST_RTN_B64", VReg_64, "DS_CMPST_B64">;
+def DS_CMPST_RTN_F64 : DS_1A2D_RET <0x71, "DS_CMPST_RTN_F64", VReg_64, "DS_CMPST_F64">;
+def DS_MIN_RTN_F64 : DS_1A1D_RET <0x72, "DS_MIN_F64", VReg_64, "DS_MIN_F64">;
+def DS_MAX_RTN_F64 : DS_1A1D_RET <0x73, "DS_MAX_F64", VReg_64, "DS_MAX_F64">;
 
 //let SubtargetPredicate = isCI in {
 // DS_CONDXCHG32_RTN_B64