[Mesa-dev] [PATCH 2/2] R600/SI: Merge offset0 and offset1 fields for single address DS instructions

[Tom Stellard]

From: Tom Stellard <thomas.stellard at amd.com>

Also remove unused data fields from the DS_Load_Helper class.
---
 lib/Target/R600/SIInstrInfo.td    | 28 ++++++++++++++++++++--------
 lib/Target/R600/SIInstructions.td |  6 +++---
 2 files changed, 23 insertions(+), 11 deletions(-)

diff --git a/lib/Target/R600/SIInstrInfo.td b/lib/Target/R600/SIInstrInfo.td
index 09d5f01..292d650 100644
--- a/lib/Target/R600/SIInstrInfo.td
+++ b/lib/Target/R600/SIInstrInfo.td
@@ -339,13 +339,22 @@ class VOP3_64 <bits<9> op, string opName, list<dag> pattern> : VOP3 <
 // Vector I/O classes
 //===----------------------------------------------------------------------===//
 
-class DS_Load_Helper <bits<8> op, string asm, RegisterClass regClass> : DS <
+class DS_1A <bits<8> op, dag outs, dag ins, string asm, list<dag> pat> :
+    DS <op, outs, ins, asm, pat> {
+  bits<16> offset;
+
+  let offset0 = offset{7-0};
+  let offset1 = offset{15-8};
+}
+
+class DS_Load_Helper <bits<8> op, string asm, RegisterClass regClass> : DS_1A <
   op,
   (outs regClass:$vdst),
-  (ins i1imm:$gds, VReg_32:$addr, VReg_32:$data0, VReg_32:$data1,
-       i8imm:$offset0, i8imm:$offset1),
-  asm#" $vdst, $gds, $addr, $data0, $data1, $offset0, $offset1, [M0]",
+  (ins i1imm:$gds, VReg_32:$addr, i16imm:$offset),
+  asm#" $vdst, $gds, $addr, $offset, [M0]",
   []> {
+  let data0 = 0;
+  let data1 = 0;
   let mayLoad = 1;
   let mayStore = 0;
 }
@@ -362,16 +371,19 @@ class DS_Store_Helper <bits<8> op, string asm, RegisterClass regClass> : DS <
   let vdst = 0;
 }
 
-class DS_1A1D_RET <bits<8> op, string asm, RegisterClass rc> : DS <
+class DS_1A1D_RET <bits<8> op, string asm, RegisterClass rc> : DS_1A <
   op,
   (outs rc:$vdst),
-  (ins i1imm:$gds, VReg_32:$addr, VReg_32:$data0, i8imm:$offset0,
-       i8imm:$offset1),
-  asm#" $gds, $vdst, $addr, $data0, $offset0, $offset1, [M0]",
+  (ins i1imm:$gds, VReg_32:$addr, VReg_32:$data0, i16imm:$offset),
+  asm#" $gds, $vdst, $addr, $data0, $offset, [M0]",
   []> {
+  bits<16> offset;
+
   let mayStore = 1;
   let mayLoad = 1;
   let data1 = 0;
+  let offset0 = offset{7-0};
+  let offset1 = offset{15-8};
 }
 
 class MTBUF_Store_Helper <bits<3> op, string asm, RegisterClass regClass> : MTBUF <
diff --git a/lib/Target/R600/SIInstructions.td b/lib/Target/R600/SIInstructions.td
index 31a5ad2..94dcf2c 100644
--- a/lib/Target/R600/SIInstructions.td
+++ b/lib/Target/R600/SIInstructions.td
@@ -1754,7 +1754,7 @@ def : Pat <
 
 class DSReadPat <DS inst, ValueType vt, PatFrag frag> : Pat <
   (frag i32:$src0),
-  (vt (inst 0, $src0, $src0, $src0, 0, 0))
+  (vt (inst 0, $src0, 0))
 >;
 
 def : DSReadPat <DS_READ_I8,  i32, sextloadi8_local>;
@@ -1764,7 +1764,7 @@ def : DSReadPat <DS_READ_U16, i32, az_extloadi16_local>;
 def : DSReadPat <DS_READ_B32, i32, local_load>;
 def : Pat <
     (local_load i32:$src0),
-    (i32 (DS_READ_B32 0, $src0, $src0, $src0, 0, 0))
+    (i32 (DS_READ_B32 0, $src0, 0))
 >;
 
 class DSWritePat <DS inst, ValueType vt, PatFrag frag> : Pat <
@@ -1777,7 +1777,7 @@ def : DSWritePat <DS_WRITE_B16, i32, truncstorei16_local>;
 def : DSWritePat <DS_WRITE_B32, i32, local_store>;
 
 def : Pat <(atomic_load_add_local i32:$ptr, i32:$val),
-           (DS_ADD_U32_RTN 0, $ptr, $val, 0, 0)>;
+           (DS_ADD_U32_RTN 0, $ptr, $val, 0)>;
 
 /********** ================== **********/
 /**********   SMRD Patterns    **********/
-- 
1.8.1.5