commit 6df39438af9714ee649ac80355fc96edf59f53bc
author Vincent Lejeune <vljn@ovi.com> Wed Oct 02 16:00:33 2013 +0000
committer Vincent Lejeune <vljn@ovi.com> Wed Oct 02 16:00:33 2013 +0000
tree 679799cf00d1812571023fee66be9f6cb3273710
parent 4ae2299b1822057ae9242d299567a3a9e4033516

R600: Add a ldptr intrinsic to support MSAA.

llvm-svn: 191838

llvm/lib/Target/R600/R600ISelLowering.cpp

diff --git a/llvm/lib/Target/R600/R600ISelLowering.cpp b/llvm/lib/Target/R600/R600ISelLowering.cpp
index e17dcd4..62577ea 100644
--- a/llvm/lib/Target/R600/R600ISelLowering.cpp
+++ b/llvm/lib/Target/R600/R600ISelLowering.cpp
@@ -609,7 +609,8 @@
     case AMDGPUIntrinsic::R600_txf:
     case AMDGPUIntrinsic::R600_txq:
     case AMDGPUIntrinsic::R600_ddx:
-    case AMDGPUIntrinsic::R600_ddy: {
+    case AMDGPUIntrinsic::R600_ddy:
+    case AMDGPUIntrinsic::R600_ldptr: {
       unsigned TextureOp;
       switch (IntrinsicID) {
       case AMDGPUIntrinsic::R600_tex:
@@ -642,6 +643,9 @@
       case AMDGPUIntrinsic::R600_ddy:
         TextureOp = 9;
         break;
+      case AMDGPUIntrinsic::R600_ldptr:
+        TextureOp = 10;
+        break;
       default:
         llvm_unreachable("Unknow Texture Operation");
       }

llvm/lib/Target/R600/R600Instructions.td

diff --git a/llvm/lib/Target/R600/R600Instructions.td b/llvm/lib/Target/R600/R600Instructions.td
index 329b327..f0c061e 100644
--- a/llvm/lib/Target/R600/R600Instructions.td
+++ b/llvm/lib/Target/R600/R600Instructions.td
@@ -881,6 +881,9 @@
 def TEX_SAMPLE_LB : R600_TEX <0x12, "TEX_SAMPLE_LB">;
 def TEX_SAMPLE_C_LB : R600_TEX <0x1A, "TEX_SAMPLE_C_LB">;
 def TEX_LD : R600_TEX <0x03, "TEX_LD">;
+def TEX_LDPTR : R600_TEX <0x03, "TEX_LDPTR"> {
+  let INST_MOD = 1;
+}
 def TEX_GET_TEXTURE_RESINFO : R600_TEX <0x04, "TEX_GET_TEXTURE_RESINFO">;
 def TEX_GET_GRADIENTS_H : R600_TEX <0x07, "TEX_GET_GRADIENTS_H">;
 def TEX_GET_GRADIENTS_V : R600_TEX <0x08, "TEX_GET_GRADIENTS_V">;
@@ -899,6 +902,7 @@
 defm : TexPattern<7, TEX_GET_TEXTURE_RESINFO, v4i32>;
 defm : TexPattern<8, TEX_GET_GRADIENTS_H>;
 defm : TexPattern<9, TEX_GET_GRADIENTS_V>;
+defm : TexPattern<10, TEX_LDPTR, v4i32>;
 
 //===----------------------------------------------------------------------===//
 // Helper classes for common instructions

llvm/lib/Target/R600/R600Intrinsics.td

diff --git a/llvm/lib/Target/R600/R600Intrinsics.td b/llvm/lib/Target/R600/R600Intrinsics.td
index 58d86b6..b5cb369 100644
--- a/llvm/lib/Target/R600/R600Intrinsics.td
+++ b/llvm/lib/Target/R600/R600Intrinsics.td
@@ -52,6 +52,7 @@
   def int_R600_txb : TextureIntrinsicFloatInput;
   def int_R600_txbc : TextureIntrinsicFloatInput;
   def int_R600_txf : TextureIntrinsicInt32Input;
+  def int_R600_ldptr : TextureIntrinsicInt32Input;
   def int_R600_txq : TextureIntrinsicInt32Input;
   def int_R600_ddx : TextureIntrinsicFloatInput;
   def int_R600_ddy : TextureIntrinsicFloatInput;