From f741fbfb1b0a0eca3663fe59808c389b33b305f2 Mon Sep 17 00:00:00 2001
From: Christian Konig <christian.koenig@amd.com>
Date: Tue, 26 Feb 2013 17:52:42 +0000
Subject: [PATCH] R600/SI: add VOP mapping functions
MIME-Version: 1.0
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Make it possible to map between e32 and e64 encoding opcodes.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
llvm-svn: 176104
---
 llvm/lib/Target/R600/AMDGPUInstrInfo.cpp |  1 +
 llvm/lib/Target/R600/SIInstrInfo.h       |  6 ++++
 llvm/lib/Target/R600/SIInstrInfo.td      | 39 +++++++++++++++++-------
 3 files changed, 35 insertions(+), 11 deletions(-)

diff --git a/llvm/lib/Target/R600/AMDGPUInstrInfo.cpp b/llvm/lib/Target/R600/AMDGPUInstrInfo.cpp
index 640707d7ca41..30f736c84c25 100644
--- a/llvm/lib/Target/R600/AMDGPUInstrInfo.cpp
+++ b/llvm/lib/Target/R600/AMDGPUInstrInfo.cpp
@@ -22,6 +22,7 @@
 #include "llvm/CodeGen/MachineRegisterInfo.h"
 
 #define GET_INSTRINFO_CTOR
+#define GET_INSTRMAP_INFO
 #include "AMDGPUGenInstrInfo.inc"
 
 using namespace llvm;
diff --git a/llvm/lib/Target/R600/SIInstrInfo.h b/llvm/lib/Target/R600/SIInstrInfo.h
index 015cfb37812f..5789af5d2116 100644
--- a/llvm/lib/Target/R600/SIInstrInfo.h
+++ b/llvm/lib/Target/R600/SIInstrInfo.h
@@ -73,6 +73,12 @@ public:
   virtual const TargetRegisterClass *getSuperIndirectRegClass() const;
   };
 
+namespace AMDGPU {
+
+  int getVOPe64(uint16_t Opcode);
+
+} // End namespace AMDGPU
+
 } // End namespace llvm
 
 namespace SIInstrFlags {
diff --git a/llvm/lib/Target/R600/SIInstrInfo.td b/llvm/lib/Target/R600/SIInstrInfo.td
index 3a617b4d93a1..d6c3f0623b5c 100644
--- a/llvm/lib/Target/R600/SIInstrInfo.td
+++ b/llvm/lib/Target/R600/SIInstrInfo.td
@@ -143,13 +143,17 @@ multiclass SMRD_Helper <bits<5> op, string asm, RegisterClass dstClass> {
 // Vector ALU classes
 //===----------------------------------------------------------------------===//
 
+class VOP <string opName> {
+  string OpName = opName;
+}
+
 multiclass VOP1_Helper <bits<8> op, RegisterClass drc, RegisterClass src,
                         string opName, list<dag> pattern> {
 
-  def _e32: VOP1 <
+  def _e32 : VOP1 <
     op, (outs drc:$dst), (ins src:$src0),
     opName#"_e32 $dst, $src0", pattern
-  >;
+  >, VOP <opName>;
 
   def _e64 : VOP3 <
     {1, 1, op{6}, op{5}, op{4}, op{3}, op{2}, op{1}, op{0}},
@@ -158,7 +162,7 @@ multiclass VOP1_Helper <bits<8> op, RegisterClass drc, RegisterClass src,
          i32imm:$abs, i32imm:$clamp,
          i32imm:$omod, i32imm:$neg),
     opName#"_e64 $dst, $src0, $abs, $clamp, $omod, $neg", []
-  > {
+  >, VOP <opName> {
     let SRC1 = SIOperand.ZERO;
     let SRC2 = SIOperand.ZERO;
   }
@@ -175,7 +179,7 @@ multiclass VOP2_Helper <bits<6> op, RegisterClass vrc, RegisterClass arc,
   def _e32 : VOP2 <
     op, (outs vrc:$dst), (ins arc:$src0, vrc:$src1),
     opName#"_e32 $dst, $src0, $src1", pattern
-  >;
+  >, VOP <opName>;
 
   def _e64 : VOP3 <
     {1, 0, 0, op{5}, op{4}, op{3}, op{2}, op{1}, op{0}},
@@ -184,7 +188,7 @@ multiclass VOP2_Helper <bits<6> op, RegisterClass vrc, RegisterClass arc,
          i32imm:$abs, i32imm:$clamp,
          i32imm:$omod, i32imm:$neg),
     opName#"_e64 $dst, $src0, $src1, $abs, $clamp, $omod, $neg", []
-  > {
+  >, VOP <opName> {
     let SRC2 = SIOperand.ZERO;
   }
 }
@@ -200,7 +204,7 @@ multiclass VOP2b_32 <bits<6> op, string opName, list<dag> pattern> {
   def _e32 : VOP2 <
     op, (outs VReg_32:$dst), (ins VSrc_32:$src0, VReg_32:$src1),
     opName#"_e32 $dst, $src0, $src1", pattern
-  >;
+  >, VOP <opName>;
 
   def _e64 : VOP3b <
     {1, 0, 0, op{5}, op{4}, op{3}, op{2}, op{1}, op{0}},
@@ -209,7 +213,7 @@ multiclass VOP2b_32 <bits<6> op, string opName, list<dag> pattern> {
          i32imm:$abs, i32imm:$clamp,
          i32imm:$omod, i32imm:$neg),
     opName#"_e64 $dst, $src0, $src1, $abs, $clamp, $omod, $neg", []
-  > {
+  >, VOP <opName> {
     let SRC2 = SIOperand.ZERO;
     /* the VOP2 variant puts the carry out into VCC, the VOP3 variant
        can write it into any SGPR. We currently don't use the carry out,
@@ -224,7 +228,7 @@ multiclass VOPC_Helper <bits<8> op, RegisterClass vrc, RegisterClass arc,
   def _e32 : VOPC <
     op, (ins arc:$src0, vrc:$src1),
     opName#"_e32 $dst, $src0, $src1", []
-  >;
+  >, VOP <opName>;
 
   def _e64 : VOP3 <
     {0, op{7}, op{6}, op{5}, op{4}, op{3}, op{2}, op{1}, op{0}},
@@ -236,7 +240,7 @@ multiclass VOPC_Helper <bits<8> op, RegisterClass vrc, RegisterClass arc,
     !if(!eq(!cast<string>(cond), "COND_NULL"), []<dag>,
       [(set SReg_64:$dst, (i1 (setcc (vt arc:$src0), arc:$src1, cond)))]
     )
-  > {
+  >, VOP <opName> {
     let SRC2 = SIOperand.ZERO;
   }
 }
@@ -254,14 +258,14 @@ class VOP3_32 <bits<9> op, string opName, list<dag> pattern> : VOP3 <
   (ins VSrc_32:$src0, VSrc_32:$src1, VSrc_32:$src2,
    i32imm:$abs, i32imm:$clamp, i32imm:$omod, i32imm:$neg),
   opName#" $dst, $src0, $src1, $src2, $abs, $clamp, $omod, $neg", pattern
->;
+>, VOP <opName>;
 
 class VOP3_64 <bits<9> op, string opName, list<dag> pattern> : VOP3 <
   op, (outs VReg_64:$dst),
   (ins VSrc_64:$src0, VSrc_64:$src1, VSrc_64:$src2,
    i32imm:$abs, i32imm:$clamp, i32imm:$omod, i32imm:$neg),
   opName#" $dst, $src0, $src1, $src2, $abs, $clamp, $omod, $neg", pattern
->;
+>, VOP <opName>;
 
 //===----------------------------------------------------------------------===//
 // Vector I/O classes
@@ -319,4 +323,17 @@ class MIMG_Load_Helper <bits<7> op, string asm> : MIMG <
   let mayStore = 0;
 }
 
+//===----------------------------------------------------------------------===//
+// Vector instruction mappings
+//===----------------------------------------------------------------------===//
+
+// Maps an opcode in e32 form to its e64 equivalent
+def getVOPe64 : InstrMapping {
+  let FilterClass = "VOP";
+  let RowFields = ["OpName"];
+  let ColFields = ["Size"];
+  let KeyCol = ["4"];
+  let ValueCols = [["8"]];
+}
+
 include "SIInstructions.td"