R600/SI: Use a multiclass for MUBUF_Load_Helper

This will simplify the instructions and also the pattern definitions.

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182288 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 30 insertions, 20 deletions

diff --git a/lib/Target/R600/SIInstrInfo.td b/lib/Target/R600/SIInstrInfo.td
index 6d5325b..59ab8d4 100644
--- a/lib/Target/R600/SIInstrInfo.td
+++ b/lib/Target/R600/SIInstrInfo.td
@@ -300,17 +300,29 @@ class MTBUF_Store_Helper <bits<3> op, string asm, RegisterClass regClass> : MTBU
   let mayLoad = 0;
 }
 
-class MUBUF_Load_Helper <bits<7> op, string asm, RegisterClass regClass> : MUBUF <
-  op,
-  (outs regClass:$vdata),
-  (ins i16imm:$offset, i1imm:$offen, i1imm:$idxen, i1imm:$glc, i1imm:$addr64,
-       i1imm:$lds, VReg_32:$vaddr, SReg_128:$srsrc, i1imm:$slc,
-       i1imm:$tfe, SSrc_32:$soffset),
-  asm#" $vdata, $offset, $offen, $idxen, $glc, $addr64, "
-     #"$lds, $vaddr, $srsrc, $slc, $tfe, $soffset",
-  []> {
-  let mayLoad = 1;
-  let mayStore = 0;
+multiclass MUBUF_Load_Helper <bits<7> op, string asm, RegisterClass regClass> {
+
+  let glc = 0, lds = 0, slc = 0, tfe = 0, soffset = 128 /* ZERO */,
+                                          mayLoad = 1 in {
+
+  let offen = 1, idxen = 0, addr64 = 0, offset = 0 in {
+    def _OFFEN  : MUBUF <op, (outs regClass:$vdata),
+                         (ins SReg_128:$srsrc, VReg_32:$vaddr),
+                         asm#" $vdata, $srsrc + $vaddr", []>;
+  }
+
+  let offen = 0, idxen = 1, addr64 = 0 in {
+    def _IDXEN  : MUBUF <op, (outs regClass:$vdata),
+                         (ins SReg_128:$srsrc, VReg_32:$vaddr, i16imm:$offset),
+                         asm#" $vdata, $srsrc[$vaddr] + $offset", []>;
+  }
+
+  let offen = 0, idxen = 0, addr64 = 1 in {
+    def _ADDR64 : MUBUF <op, (outs regClass:$vdata),
+                         (ins SReg_128:$srsrc, VReg_64:$vaddr, i16imm:$offset),
+                         asm#" $vdata, $srsrc + $vaddr + $offset", []>;
+  }
+  }
 }
 
 class MUBUF_Store_Helper <bits<7> op, string name, RegisterClass vdataClass,
diff --git a/lib/Target/R600/SIInstructions.td b/lib/Target/R600/SIInstructions.td
index 334c567..03eced0 100644
--- a/lib/Target/R600/SIInstructions.td
+++ b/lib/Target/R600/SIInstructions.td
@@ -394,7 +394,7 @@ defm V_CMPX_CLASS_F64 : VOPC_64 <0x000000b8, "V_CMPX_CLASS_F64">;
 //def BUFFER_LOAD_FORMAT_X : MUBUF_ <0x00000000, "BUFFER_LOAD_FORMAT_X", []>;
 //def BUFFER_LOAD_FORMAT_XY : MUBUF_ <0x00000001, "BUFFER_LOAD_FORMAT_XY", []>;
 //def BUFFER_LOAD_FORMAT_XYZ : MUBUF_ <0x00000002, "BUFFER_LOAD_FORMAT_XYZ", []>;
-def BUFFER_LOAD_FORMAT_XYZW : MUBUF_Load_Helper <0x00000003, "BUFFER_LOAD_FORMAT_XYZW", VReg_128>;
+defm BUFFER_LOAD_FORMAT_XYZW : MUBUF_Load_Helper <0x00000003, "BUFFER_LOAD_FORMAT_XYZW", VReg_128>;
 //def BUFFER_STORE_FORMAT_X : MUBUF_ <0x00000004, "BUFFER_STORE_FORMAT_X", []>;
 //def BUFFER_STORE_FORMAT_XY : MUBUF_ <0x00000005, "BUFFER_STORE_FORMAT_XY", []>;
 //def BUFFER_STORE_FORMAT_XYZ : MUBUF_ <0x00000006, "BUFFER_STORE_FORMAT_XYZ", []>;
@@ -403,9 +403,9 @@ def BUFFER_LOAD_FORMAT_XYZW : MUBUF_Load_Helper <0x00000003, "BUFFER_LOAD_FORMAT
 //def BUFFER_LOAD_SBYTE : MUBUF_ <0x00000009, "BUFFER_LOAD_SBYTE", []>;
 //def BUFFER_LOAD_USHORT : MUBUF_ <0x0000000a, "BUFFER_LOAD_USHORT", []>;
 //def BUFFER_LOAD_SSHORT : MUBUF_ <0x0000000b, "BUFFER_LOAD_SSHORT", []>;
-def BUFFER_LOAD_DWORD : MUBUF_Load_Helper <0x0000000c, "BUFFER_LOAD_DWORD", VReg_32>;
-def BUFFER_LOAD_DWORDX2 : MUBUF_Load_Helper <0x0000000d, "BUFFER_LOAD_DWORDX2", VReg_64>;
-def BUFFER_LOAD_DWORDX4 : MUBUF_Load_Helper <0x0000000e, "BUFFER_LOAD_DWORDX4", VReg_128>;
+defm BUFFER_LOAD_DWORD : MUBUF_Load_Helper <0x0000000c, "BUFFER_LOAD_DWORD", VReg_32>;
+defm BUFFER_LOAD_DWORDX2 : MUBUF_Load_Helper <0x0000000d, "BUFFER_LOAD_DWORDX2", VReg_64>;
+defm BUFFER_LOAD_DWORDX4 : MUBUF_Load_Helper <0x0000000e, "BUFFER_LOAD_DWORDX4", VReg_128>;
 //def BUFFER_STORE_BYTE : MUBUF_ <0x00000018, "BUFFER_STORE_BYTE", []>;
 //def BUFFER_STORE_SHORT : MUBUF_ <0x0000001a, "BUFFER_STORE_SHORT", []>;
 
@@ -1214,10 +1214,8 @@ def : Pat <
 
 /* int_SI_vs_load_input */
 def : Pat<
-  (int_SI_vs_load_input v16i8:$tlst, IMM12bit:$attr_offset,
-                        i32:$buf_idx_vgpr),
-  (BUFFER_LOAD_FORMAT_XYZW imm:$attr_offset, 0, 1, 0, 0, 0,
-                           $buf_idx_vgpr, $tlst, 0, 0, 0)
+  (int_SI_vs_load_input v16i8:$tlst, IMM12bit:$attr_offset, i32:$buf_idx_vgpr),
+  (BUFFER_LOAD_FORMAT_XYZW_IDXEN $tlst, $buf_idx_vgpr, imm:$attr_offset)
 >;
 
 /* int_SI_export */
@@ -1542,7 +1540,7 @@ def : Pat <
 // 3. Offset in an 32Bit VGPR
 def : Pat <
   (int_SI_load_const v16i8:$sbase, i32:$voff),
-  (BUFFER_LOAD_DWORD 0, 1, 0, 0, 0, 0, $voff, $sbase, 0, 0, 0)
+  (BUFFER_LOAD_DWORD_OFFEN $sbase, $voff)
 >;
 
 // The multiplication scales from [0,1] to the unsigned integer range