From a31b2f71076b9d3fe9bc5f2bae3228f1e7b99ee2 Mon Sep 17 00:00:00 2001
From: Tom Stellard <thomas.stellard@amd.com>
Date: Thu, 28 Jun 2012 20:27:55 +0000
Subject: [PATCH] radeon/llvm: Enable vec4 loads on R600

---
 .../drivers/radeon/AMDGPUISelLowering.cpp        |  3 +++
 src/gallium/drivers/radeon/R600CodeEmitter.cpp   |  1 +
 src/gallium/drivers/radeon/R600Instructions.td   | 16 ++++++++++++++++
 3 files changed, 20 insertions(+)

diff --git a/src/gallium/drivers/radeon/AMDGPUISelLowering.cpp b/src/gallium/drivers/radeon/AMDGPUISelLowering.cpp
index f14900450ae..ef5715fd5f0 100644
--- a/src/gallium/drivers/radeon/AMDGPUISelLowering.cpp
+++ b/src/gallium/drivers/radeon/AMDGPUISelLowering.cpp
@@ -34,6 +34,7 @@ AMDGPUTargetLowering::AMDGPUTargetLowering(TargetMachine &TM) :
   setOperationAction(ISD::FRINT,  MVT::f32, Legal);
 
   setOperationAction(ISD::LOAD, MVT::f32, Custom);
+  setOperationAction(ISD::LOAD, MVT::v4f32, Custom);
 
   setOperationAction(ISD::UDIV, MVT::i32, Expand);
   setOperationAction(ISD::UDIVREM, MVT::i32, Custom);
@@ -139,6 +140,8 @@ SDValue AMDGPUTargetLowering::BitcastLOAD(SDValue Op, SelectionDAG &DAG) const
 
   if (VT == MVT::f32) {
     IntVT = MVT::i32;
+  } else if (VT == MVT::v4f32) {
+    IntVT = MVT::v4i32;
   } else {
     return Op;
   }
diff --git a/src/gallium/drivers/radeon/R600CodeEmitter.cpp b/src/gallium/drivers/radeon/R600CodeEmitter.cpp
index 99964d4beb1..9db6ba86232 100644
--- a/src/gallium/drivers/radeon/R600CodeEmitter.cpp
+++ b/src/gallium/drivers/radeon/R600CodeEmitter.cpp
@@ -205,6 +205,7 @@ bool R600CodeEmitter::runOnMachineFunction(MachineFunction &MF) {
               }
             case AMDIL::VTX_READ_PARAM_eg:
             case AMDIL::VTX_READ_GLOBAL_eg:
+            case AMDIL::VTX_READ_GLOBAL_128_eg:
               {
                 uint64_t InstWord01 = getBinaryCodeForInstr(MI);
                 uint32_t InstWord2 = MI.getOperand(2).getImm(); // Offset
diff --git a/src/gallium/drivers/radeon/R600Instructions.td b/src/gallium/drivers/radeon/R600Instructions.td
index fa52f32001d..da5f364839f 100644
--- a/src/gallium/drivers/radeon/R600Instructions.td
+++ b/src/gallium/drivers/radeon/R600Instructions.td
@@ -1029,6 +1029,21 @@ def VTX_READ_GLOBAL_eg : VTX_READ_32_eg <1,
   [(set (i32 R600_TReg32_X:$dst), (global_load ADDRVTX_READ:$ptr))]
 >;
 
+class VTX_READ_128_eg <bits<8> buffer_id, list<dag> pattern>
+    : VTX_READ_eg <buffer_id, (outs R600_Reg128:$dst), pattern> {
+
+  let MEGA_FETCH_COUNT = 16;
+  let DST_SEL_X        =  0;
+  let DST_SEL_Y        =  1;
+  let DST_SEL_Z        =  2;
+  let DST_SEL_W        =  3;
+  let DATA_FORMAT      =  0x22; // COLOR_32_32_32_32
+}
+
+def VTX_READ_GLOBAL_128_eg : VTX_READ_128_eg <1,
+  [(set (v4i32 R600_Reg128:$dst), (global_load ADDRVTX_READ:$ptr))]
+>;
+
 }
 
 let Predicates = [isCayman] in {
@@ -1280,5 +1295,6 @@ def : Vector_Build <v4i32, R600_Reg32>;
 
 def : BitConvert <i32, f32, R600_Reg32>;
 def : BitConvert <f32, i32, R600_Reg32>;
+def : BitConvert <v4f32, v4i32, R600_Reg128>;
 
 } // End isR600toCayman Predicate
-- 
2.30.2