Add parameter to pattern classes to enable an itinerary to be specified for instructions. For now just use the existing itineraries or NoItinerary.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78321 91177308-0d34-0410-b5e6-96231b3b80d8

6 files changed, 926 insertions, 819 deletions

diff --git a/lib/Target/ARM/ARMInstrFormats.td b/lib/Target/ARM/ARMInstrFormats.td
index 2d76a3615f..fb84d523fa 100644
--- a/lib/Target/ARM/ARMInstrFormats.td
+++ b/lib/Target/ARM/ARMInstrFormats.td
@@ -136,7 +136,7 @@ def s_cc_out : OptionalDefOperand<OtherVT, (ops CCR), (ops (i32 CPSR))> {
 //
 
 class InstARM<AddrMode am, SizeFlagVal sz, IndexMode im,
-              Format f, string cstr>
+              Format f, string cstr, InstrItinClass itin>
   : Instruction {
   field bits<32> Inst;
 
@@ -162,10 +162,12 @@ class InstARM<AddrMode am, SizeFlagVal sz, IndexMode im,
   bit canXformTo16Bit = 0;
   
   let Constraints = cstr;
+  let Itinerary = itin;
 }
 
-class PseudoInst<dag oops, dag iops, string asm, list<dag> pattern>
-  : InstARM<AddrModeNone, SizeSpecial, IndexModeNone, Pseudo, ""> {
+class PseudoInst<dag oops, dag iops, InstrItinClass itin, 
+                 string asm, list<dag> pattern>
+  : InstARM<AddrModeNone, SizeSpecial, IndexModeNone, Pseudo, "", itin> {
   let OutOperandList = oops;
   let InOperandList = iops;
   let AsmString   = asm;
@@ -174,9 +176,10 @@ class PseudoInst<dag oops, dag iops, string asm, list<dag> pattern>
 
 // Almost all ARM instructions are predicable.
 class I<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
-        IndexMode im, Format f, string opc, string asm, string cstr,
+        IndexMode im, Format f, InstrItinClass itin, 
+        string opc, string asm, string cstr,
         list<dag> pattern>
-  : InstARM<am, sz, im, f, cstr> {
+  : InstARM<am, sz, im, f, cstr, itin> {
   let OutOperandList = oops;
   let InOperandList = !con(iops, (ops pred:$p));
   let AsmString   = !strconcat(opc, !strconcat("${p}", asm));
@@ -188,9 +191,10 @@ class I<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
 // an input operand since by default it's a zero register. It will
 // become an implicit def once it's "flipped".
 class sI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
-         IndexMode im, Format f, string opc, string asm, string cstr,
+         IndexMode im, Format f, InstrItinClass itin,
+         string opc, string asm, string cstr,
          list<dag> pattern>
-  : InstARM<am, sz, im, f, cstr> {
+  : InstARM<am, sz, im, f, cstr, itin> {
   let OutOperandList = oops;
   let InOperandList = !con(iops, (ops pred:$p, cc_out:$s));
   let AsmString   = !strconcat(opc, !strconcat("${p}${s}", asm));
@@ -200,8 +204,9 @@ class sI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
 
 // Special cases
 class XI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
-         IndexMode im, Format f, string asm, string cstr, list<dag> pattern>
-  : InstARM<am, sz, im, f, cstr> {
+         IndexMode im, Format f, InstrItinClass itin,
+         string asm, string cstr, list<dag> pattern>
+  : InstARM<am, sz, im, f, cstr, itin> {
   let OutOperandList = oops;
   let InOperandList = iops;
   let AsmString   = asm;
@@ -209,90 +214,93 @@ class XI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
   list<Predicate> Predicates = [IsARM];
 }
 
-class AI<dag oops, dag iops, Format f, string opc,
-         string asm, list<dag> pattern>
-  : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, f, opc,
-      asm, "", pattern>;
-class AsI<dag oops, dag iops, Format f, string opc,
+class AI<dag oops, dag iops, Format f, InstrItinClass itin,
+         string opc, string asm, list<dag> pattern>
+  : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, f, itin,
+      opc, asm, "", pattern>;
+class AsI<dag oops, dag iops, Format f, InstrItinClass itin,
+          string opc, string asm, list<dag> pattern>
+  : sI<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, f, itin,
+       opc, asm, "", pattern>;
+class AXI<dag oops, dag iops, Format f, InstrItinClass itin,
           string asm, list<dag> pattern>
-  : sI<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, f, opc,
+  : XI<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, f, itin,
        asm, "", pattern>;
-class AXI<dag oops, dag iops, Format f, string asm,
-          list<dag> pattern>
-  : XI<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, f, asm,
-       "", pattern>;
 
 // Ctrl flow instructions
-class ABI<bits<4> opcod, dag oops, dag iops, string opc,
-         string asm, list<dag> pattern>
-  : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, BrFrm, opc,
-      asm, "", pattern> {
+class ABI<bits<4> opcod, dag oops, dag iops, InstrItinClass itin,
+          string opc, string asm, list<dag> pattern>
+  : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, BrFrm, itin,
+      opc, asm, "", pattern> {
   let Inst{27-24} = opcod;
 }
-class ABXI<bits<4> opcod, dag oops, dag iops, string asm, list<dag> pattern>
-  : XI<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, BrFrm, asm,
-       "", pattern> {
+class ABXI<bits<4> opcod, dag oops, dag iops, InstrItinClass itin,
+           string asm, list<dag> pattern>
+  : XI<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, BrFrm, itin,
+       asm, "", pattern> {
   let Inst{27-24} = opcod;
 }
-class ABXIx2<dag oops, dag iops, string asm, list<dag> pattern>
-  : XI<oops, iops, AddrModeNone, Size8Bytes, IndexModeNone, BrMiscFrm, asm,
-       "", pattern>;
+class ABXIx2<dag oops, dag iops, InstrItinClass itin,
+             string asm, list<dag> pattern>
+  : XI<oops, iops, AddrModeNone, Size8Bytes, IndexModeNone, BrMiscFrm, itin,
+       asm, "", pattern>;
 
 // BR_JT instructions
-class JTI<dag oops, dag iops, string asm, list<dag> pattern>
-  : XI<oops, iops, AddrModeNone, SizeSpecial, IndexModeNone, BrMiscFrm,
+class JTI<dag oops, dag iops, InstrItinClass itin,
+          string asm, list<dag> pattern>
+  : XI<oops, iops, AddrModeNone, SizeSpecial, IndexModeNone, BrMiscFrm, itin,
        asm, "", pattern>;
 
 // addrmode1 instructions
-class AI1<bits<4> opcod, dag oops, dag iops, Format f, string opc,
-          string asm, list<dag> pattern>
-  : I<oops, iops, AddrMode1, Size4Bytes, IndexModeNone, f, opc,
-      asm, "", pattern> {
+class AI1<bits<4> opcod, dag oops, dag iops, Format f, InstrItinClass itin,
+          string opc, string asm, list<dag> pattern>
+  : I<oops, iops, AddrMode1, Size4Bytes, IndexModeNone, f, itin,
+      opc, asm, "", pattern> {
   let Inst{24-21} = opcod;
   let Inst{27-26} = {0,0};
 }
-class AsI1<bits<4> opcod, dag oops, dag iops, Format f, string opc,
-           string asm, list<dag> pattern>
-  : sI<oops, iops, AddrMode1, Size4Bytes, IndexModeNone, f, opc,
-       asm, "", pattern> {
+class AsI1<bits<4> opcod, dag oops, dag iops, Format f, InstrItinClass itin,
+           string opc, string asm, list<dag> pattern>
+  : sI<oops, iops, AddrMode1, Size4Bytes, IndexModeNone, f, itin,
+       opc, asm, "", pattern> {
   let Inst{24-21} = opcod;
   let Inst{27-26} = {0,0};
 }
-class AXI1<bits<4> opcod, dag oops, dag iops, Format f, string asm,
-           list<dag> pattern>
-  : XI<oops, iops, AddrMode1, Size4Bytes, IndexModeNone, f, asm,
-       "", pattern> {
+class AXI1<bits<4> opcod, dag oops, dag iops, Format f, InstrItinClass itin,
+           string asm, list<dag> pattern>
+  : XI<oops, iops, AddrMode1, Size4Bytes, IndexModeNone, f, itin,
+       asm, "", pattern> {
   let Inst{24-21} = opcod;
   let Inst{27-26} = {0,0};
 }
-class AI1x2<dag oops, dag iops, Format f, string opc,
-            string asm, list<dag> pattern>
-  : I<oops, iops, AddrMode1, Size8Bytes, IndexModeNone, f, opc,
-      asm, "", pattern>;
+class AI1x2<dag oops, dag iops, Format f, InstrItinClass itin, 
+            string opc, string asm, list<dag> pattern>
+  : I<oops, iops, AddrMode1, Size8Bytes, IndexModeNone, f, itin,
+      opc, asm, "", pattern>;
 
 
 // addrmode2 loads and stores
-class AI2<dag oops, dag iops, Format f, string opc,
-          string asm, list<dag> pattern>
-  : I<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f, opc,
-      asm, "", pattern> {
+class AI2<dag oops, dag iops, Format f, InstrItinClass itin,
+          string opc, string asm, list<dag> pattern>
+  : I<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f, itin,
+      opc, asm, "", pattern> {
   let Inst{27-26} = {0,1};
 }
 
 // loads
-class AI2ldw<dag oops, dag iops, Format f, string opc,
-          string asm, list<dag> pattern>
-  : I<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f, opc,
-      asm, "", pattern> {
+class AI2ldw<dag oops, dag iops, Format f, InstrItinClass itin,
+             string opc, string asm, list<dag> pattern>
+  : I<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f, itin,
+      opc, asm, "", pattern> {
   let Inst{20}    = 1; // L bit
   let Inst{21}    = 0; // W bit
   let Inst{22}    = 0; // B bit
   let Inst{24}    = 1; // P bit
   let Inst{27-26} = {0,1};
 }
-class AXI2ldw<dag oops, dag iops, Format f, string asm,
-           list<dag> pattern>
-  : XI<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f,
+class AXI2ldw<dag oops, dag iops, Format f, InstrItinClass itin, 
+              string asm, list<dag> pattern>
+  : XI<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f, itin,
        asm, "", pattern> {
   let Inst{20}    = 1; // L bit
   let Inst{21}    = 0; // W bit
@@ -300,19 +308,19 @@ class AXI2ldw<dag oops, dag iops, Format f, string asm,
   let Inst{24}    = 1; // P bit
   let Inst{27-26} = {0,1};
 }
-class AI2ldb<dag oops, dag iops, Format f, string opc,
-          string asm, list<dag> pattern>
-  : I<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f, opc,
-      asm, "", pattern> {
+class AI2ldb<dag oops, dag iops, Format f, InstrItinClass itin,
+             string opc, string asm, list<dag> pattern>
+  : I<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f, itin,
+      opc, asm, "", pattern> {
   let Inst{20}    = 1; // L bit
   let Inst{21}    = 0; // W bit
   let Inst{22}    = 1; // B bit
   let Inst{24}    = 1; // P bit
   let Inst{27-26} = {0,1};
 }
-class AXI2ldb<dag oops, dag iops, Format f, string asm,
-           list<dag> pattern>
-  : XI<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f,
+class AXI2ldb<dag oops, dag iops, Format f, InstrItinClass itin, 
+              string asm, list<dag> pattern>
+  : XI<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f, itin,
        asm, "", pattern> {
   let Inst{20}    = 1; // L bit
   let Inst{21}    = 0; // W bit
@@ -322,19 +330,19 @@ class AXI2ldb<dag oops, dag iops, Format f, string asm,
 }
 
 // stores
-class AI2stw<dag oops, dag iops, Format f, string opc,
-          string asm, list<dag> pattern>
-  : I<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f, opc,
-      asm, "", pattern> {
+class AI2stw<dag oops, dag iops, Format f, InstrItinClass itin,
+             string opc, string asm, list<dag> pattern>
+  : I<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f, itin,
+      opc, asm, "", pattern> {
   let Inst{20}    = 0; // L bit
   let Inst{21}    = 0; // W bit
   let Inst{22}    = 0; // B bit
   let Inst{24}    = 1; // P bit
   let Inst{27-26} = {0,1};
 }
-class AXI2stw<dag oops, dag iops, Format f, string asm,
-           list<dag> pattern>
-  : XI<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f,
+class AXI2stw<dag oops, dag iops, Format f, InstrItinClass itin,
+              string asm, list<dag> pattern>
+  : XI<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f, itin,
        asm, "", pattern> {
   let Inst{20}    = 0; // L bit
   let Inst{21}    = 0; // W bit
@@ -342,19 +350,19 @@ class AXI2stw<dag oops, dag iops, Format f, string asm,
   let Inst{24}    = 1; // P bit
   let Inst{27-26} = {0,1};
 }
-class AI2stb<dag oops, dag iops, Format f, string opc,
-          string asm, list<dag> pattern>
-  : I<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f, opc,
-      asm, "", pattern> {
+class AI2stb<dag oops, dag iops, Format f, InstrItinClass itin,
+             string opc, string asm, list<dag> pattern>
+  : I<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f, itin,
+      opc, asm, "", pattern> {
   let Inst{20}    = 0; // L bit
   let Inst{21}    = 0; // W bit
   let Inst{22}    = 1; // B bit
   let Inst{24}    = 1; // P bit
   let Inst{27-26} = {0,1};
 }
-class AXI2stb<dag oops, dag iops, Format f, string asm,
-           list<dag> pattern>
-  : XI<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f,
+class AXI2stb<dag oops, dag iops, Format f, InstrItinClass itin,
+              string asm, list<dag> pattern>
+  : XI<oops, iops, AddrMode2, Size4Bytes, IndexModeNone, f, itin,
        asm, "", pattern> {
   let Inst{20}    = 0; // L bit
   let Inst{21}    = 0; // W bit
@@ -364,20 +372,20 @@ class AXI2stb<dag oops, dag iops, Format f, string asm,
 }
 
 // Pre-indexed loads
-class AI2ldwpr<dag oops, dag iops, Format f, string opc,
-            string asm, string cstr, list<dag> pattern>
-  : I<oops, iops, AddrMode2, Size4Bytes, IndexModePre, f, opc,
-      asm, cstr, pattern> {
+class AI2ldwpr<dag oops, dag iops, Format f, InstrItinClass itin,
+               string opc, string asm, string cstr, list<dag> pattern>
+  : I<oops, iops, AddrMode2, Size4Bytes, IndexModePre, f, itin,
+      opc, asm, cstr, pattern> {
   let Inst{20}    = 1; // L bit
   let Inst{21}    = 1; // W bit
   let Inst{22}    = 0; // B bit
   let Inst{24}    = 1; // P bit
   let Inst{27-26} = {0,1};
 }
-class AI2ldbpr<dag oops, dag iops, Format f, string opc,
-            string asm, string cstr, list<dag> pattern>
-  : I<oops, iops, AddrMode2, Size4Bytes, IndexModePre, f, opc,
-      asm, cstr, pattern> {
+class AI2ldbpr<dag oops, dag iops, Format f, InstrItinClass itin,
+               string opc, string asm, string cstr, list<dag> pattern>
+  : I<oops, iops, AddrMode2, Size4Bytes, IndexModePre, f, itin,
+      opc, asm, cstr, pattern> {
   let Inst{20}    = 1; // L bit
   let Inst{21}    = 1; // W bit
   let Inst{22}    = 1; // B bit
@@ -386,20 +394,20 @@ class AI2ldbpr<dag oops, dag iops, Format f, string opc,
 }
 
 // Pre-indexed stores
-class AI2stwpr<dag oops, dag iops, Format f, string opc,
-            string asm, string cstr, list<dag> pattern>
-  : I<oops, iops, AddrMode2, Size4Bytes, IndexModePre, f, opc,
-      asm, cstr, pattern> {
+class AI2stwpr<dag oops, dag iops, Format f, InstrItinClass itin,
+               string opc, string asm, string cstr, list<dag> pattern>
+  : I<oops, iops, AddrMode2, Size4Bytes, IndexModePre, f, itin,
+      opc, asm, cstr, pattern> {
   let Inst{20}    = 0; // L bit
   let Inst{21}    = 1; // W bit
   let Inst{22}    = 0; // B bit
   let Inst{24}    = 1; // P bit
   let Inst{27-26} = {0,1};
 }
-class AI2stbpr<dag oops, dag iops, Format f, string opc,
-            string asm, string cstr, list<dag> pattern>
-  : I<oops, iops, AddrMode2, Size4Bytes, IndexModePre, f, opc,
-      asm, cstr, pattern> {
+class AI2stbpr<dag oops, dag iops, Format f, InstrItinClass itin,
+               string opc, string asm, string cstr, list<dag> pattern>
+  : I<oops, iops, AddrMode2, Size4Bytes, IndexModePre, f, itin,
+      opc, asm, cstr, pattern> {
   let Inst{20}    = 0; // L bit
   let Inst{21}    = 1; // W bit
   let Inst{22}    = 1; // B bit
@@ -408,20 +416,20 @@ class AI2stbpr<dag oops, dag iops, Format f, string opc,
 }
 
 // Post-indexed loads
-class AI2ldwpo<dag oops, dag iops, Format f, string opc,
-            string asm, string cstr, list<dag> pattern>
-  : I<oops, iops, AddrMode2, Size4Bytes, IndexModePost, f, opc,
-      asm, cstr,pattern> {
+class AI2ldwpo<dag oops, dag iops, Format f, InstrItinClass itin,
+               string opc, string asm, string cstr, list<dag> pattern>
+  : I<oops, iops, AddrMode2, Size4Bytes, IndexModePost, f, itin,
+      opc, asm, cstr,pattern> {
   let Inst{20}    = 1; // L bit
   let Inst{21}    = 0; // W bit
   let Inst{22}    = 0; // B bit
   let Inst{24}    = 0; // P bit
   let Inst{27-26} = {0,1};
 }
-class AI2ldbpo<dag oops, dag iops, Format f, string opc,
-            string asm, string cstr, list<dag> pattern>
-  : I<oops, iops, AddrMode2, Size4Bytes, IndexModePost, f, opc,
-      asm, cstr,pattern> {
+class AI2ldbpo<dag oops, dag iops, Format f, InstrItinClass itin,
+               string opc, string asm, string cstr, list<dag> pattern>
+  : I<oops, iops, AddrMode2, Size4Bytes, IndexModePost, f, itin,
+      opc, asm, cstr,pattern> {
   let Inst{20}    = 1; // L bit
   let Inst{21}    = 0; // W bit
   let Inst{22}    = 1; // B bit
@@ -430,20 +438,20 @@ class AI2ldbpo<dag oops, dag iops, Format f, string opc,
 }
 
 // Post-indexed stores
-class AI2stwpo<dag oops, dag iops, Format f, string opc,
-            string asm, string cstr, list<dag> pattern>
-  : I<oops, iops, AddrMode2, Size4Bytes, IndexModePost, f, opc,
-      asm, cstr,pattern> {
+class AI2stwpo<dag oops, dag iops, Format f, InstrItinClass itin,
+               string opc, string asm, string cstr, list<dag> pattern>
+  : I<oops, iops, AddrMode2, Size4Bytes, IndexModePost, f, itin,
+      opc, asm, cstr,pattern> {
   let Inst{20}    = 0; // L bit
   let Inst{21}    = 0; // W bit
   let Inst{22}    = 0; // B bit
   let Inst{24}    = 0; // P bit
   let Inst{27-26} = {0,1};
 }
-class AI2stbpo<dag oops, dag iops, Format f, string opc,
-            string asm, string cstr, list<dag> pattern>
-  : I<oops, iops, AddrMode2, Size4Bytes, IndexModePost, f, opc,
-      asm, cstr,pattern> {
+class AI2stbpo<dag oops, dag iops, Format f, InstrItinClass itin,
+               string opc, string asm, string cstr, list<dag> pattern>
+  : I<oops, iops, AddrMode2, Size4Bytes, IndexModePost, f, itin,
+      opc, asm, cstr,pattern> {
   let Inst{20}    = 0; // L bit
   let Inst{21}    = 0; // W bit
   let Inst{22}    = 1; // B bit
@@ -452,20 +460,20 @@ class AI2stbpo<dag oops, dag iops, Format f, string opc,
 }
 
 // addrmode3 instructions
-class AI3<dag oops, dag iops, Format f, string opc,
-          string asm, list<dag> pattern>
-  : I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, opc,
-      asm, "", pattern>;
-class AXI3<dag oops, dag iops, Format f, string asm,
-           list<dag> pattern>
-  : XI<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, asm,
-       "", pattern>;
+class AI3<dag oops, dag iops, Format f, InstrItinClass itin, 
+          string opc, string asm, list<dag> pattern>
+  : I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
+      opc, asm, "", pattern>;
+class AXI3<dag oops, dag iops, Format f, InstrItinClass itin,
+           string asm, list<dag> pattern>
+  : XI<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
+       asm, "", pattern>;
 
 // loads
-class AI3ldh<dag oops, dag iops, Format f, string opc,
-          string asm, list<dag> pattern>
-  : I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, opc,
-      asm, "", pattern> {
+class AI3ldh<dag oops, dag iops, Format f, InstrItinClass itin,
+             string opc, string asm, list<dag> pattern>
+  : I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
+      opc, asm, "", pattern> {
   let Inst{4}     = 1;
   let Inst{5}     = 1; // H bit
   let Inst{6}     = 0; // S bit
@@ -475,9 +483,9 @@ class AI3ldh<dag oops, dag iops, Format f, string opc,
   let Inst{24}    = 1; // P bit
   let Inst{27-25} = 0b000;
 }
-class AXI3ldh<dag oops, dag iops, Format f, string asm,
-           list<dag> pattern>
-  : XI<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f,
+class AXI3ldh<dag oops, dag iops, Format f, InstrItinClass itin,
+              string asm, list<dag> pattern>
+  : XI<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
        asm, "", pattern> {
   let Inst{4}     = 1;
   let Inst{5}     = 1; // H bit
@@ -487,10 +495,10 @@ class AXI3ldh<dag oops, dag iops, Format f, string asm,
   let Inst{21}    = 0; // W bit
   let Inst{24}    = 1; // P bit
 }
-class AI3ldsh<dag oops, dag iops, Format f, string opc,
-          string asm, list<dag> pattern>
-  : I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, opc,
-      asm, "", pattern> {
+class AI3ldsh<dag oops, dag iops, Format f, InstrItinClass itin,
+              string opc, string asm, list<dag> pattern>
+  : I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
+      opc, asm, "", pattern> {
   let Inst{4}     = 1;
   let Inst{5}     = 1; // H bit
   let Inst{6}     = 1; // S bit
@@ -500,9 +508,9 @@ class AI3ldsh<dag oops, dag iops, Format f, string opc,
   let Inst{24}    = 1; // P bit
   let Inst{27-25} = 0b000;
 }
-class AXI3ldsh<dag oops, dag iops, Format f, string asm,
-           list<dag> pattern>
-  : XI<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f,
+class AXI3ldsh<dag oops, dag iops, Format f, InstrItinClass itin,
+               string asm, list<dag> pattern>
+  : XI<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
        asm, "", pattern> {
   let Inst{4}     = 1;
   let Inst{5}     = 1; // H bit
@@ -512,10 +520,10 @@ class AXI3ldsh<dag oops, dag iops, Format f, string asm,
   let Inst{21}    = 0; // W bit
   let Inst{24}    = 1; // P bit
 }
-class AI3ldsb<dag oops, dag iops, Format f, string opc,
-          string asm, list<dag> pattern>
-  : I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, opc,
-      asm, "", pattern> {
+class AI3ldsb<dag oops, dag iops, Format f, InstrItinClass itin,
+              string opc, string asm, list<dag> pattern>
+  : I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
+      opc, asm, "", pattern> {
   let Inst{4}     = 1;
   let Inst{5}     = 0; // H bit
   let Inst{6}     = 1; // S bit
@@ -525,9 +533,9 @@ class AI3ldsb<dag oops, dag iops, Format f, string opc,
   let Inst{24}    = 1; // P bit
   let Inst{27-25} = 0b000;
 }
-class AXI3ldsb<dag oops, dag iops, Format f, string asm,
-           list<dag> pattern>
-  : XI<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f,
+class AXI3ldsb<dag oops, dag iops, Format f, InstrItinClass itin,
+               string asm, list<dag> pattern>
+  : XI<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
        asm, "", pattern> {
   let Inst{4}     = 1;
   let Inst{5}     = 0; // H bit
@@ -537,10 +545,10 @@ class AXI3ldsb<dag oops, dag iops, Format f, string asm,
   let Inst{21}    = 0; // W bit
   let Inst{24}    = 1; // P bit
 }
-class AI3ldd<dag oops, dag iops, Format f, string opc,
-          string asm, list<dag> pattern>
-  : I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, opc,
-      asm, "", pattern> {
+class AI3ldd<dag oops, dag iops, Format f, InstrItinClass itin,
+             string opc, string asm, list<dag> pattern>
+  : I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
+      opc, asm, "", pattern> {
   let Inst{4}     = 1;
   let Inst{5}     = 0; // H bit
   let Inst{6}     = 1; // S bit
@@ -552,10 +560,10 @@ class AI3ldd<dag oops, dag iops, Format f, string opc,
 }
 
 // stores
-class AI3sth<dag oops, dag iops, Format f, string opc,
-          string asm, list<dag> pattern>
-  : I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, opc,
-      asm, "", pattern> {
+class AI3sth<dag oops, dag iops, Format f, InstrItinClass itin,
+             string opc, string asm, list<dag> pattern>
+  : I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
+      opc, asm, "", pattern> {
   let Inst{4}     = 1;
   let Inst{5}     = 1; // H bit
   let Inst{6}     = 0; // S bit
@@ -565,9 +573,9 @@ class AI3sth<dag oops, dag iops, Format f, string opc,
   let Inst{24}    = 1; // P bit
   let Inst{27-25} = 0b000;
 }
-class AXI3sth<dag oops, dag iops, Format f, string asm,
-           list<dag> pattern>
-  : XI<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f,
+class AXI3sth<dag oops, dag iops, Format f, InstrItinClass itin,
+              string asm, list<dag> pattern>
+  : XI<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
        asm, "", pattern> {
   let Inst{4}     = 1;
   let Inst{5}     = 1; // H bit
@@ -577,10 +585,10 @@ class AXI3sth<dag oops, dag iops, Format f, string asm,
   let Inst{21}    = 0; // W bit
   let Inst{24}    = 1; // P bit
 }
-class AI3std<dag oops, dag iops, Format f, string opc,
-          string asm, list<dag> pattern>
-  : I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, opc,
-      asm, "", pattern> {
+class AI3std<dag oops, dag iops, Format f, InstrItinClass itin,
+             string opc, string asm, list<dag> pattern>
+  : I<oops, iops, AddrMode3, Size4Bytes, IndexModeNone, f, itin,
+      opc, asm, "", pattern> {
   let Inst{4}     = 1;
   let Inst{5}     = 1; // H bit
   let Inst{6}     = 1; // S bit
@@ -592,10 +600,10 @@ class AI3std<dag oops, dag iops, Format f, string opc,
 }
 
 // Pre-indexed loads
-class AI3ldhpr<dag oops, dag iops, Format f, string opc,
-            string asm, string cstr, list<dag> pattern>
-  : I<oops, iops, AddrMode3, Size4Bytes, IndexModePre, f, opc,
-      asm, cstr, pattern> {
+class AI3ldhpr<dag oops, dag iops, Format f, InstrItinClass itin,
+               string opc, string asm, string cstr, list<dag> pattern>
+  : I<oops, iops, AddrMode3, Size4Bytes, IndexModePre, f, itin,
+      opc, asm, cstr, pattern> {
   let Inst{4}     = 1;
   let Inst{5}     = 1; // H bit
   let Inst{6}     = 0; // S bit
@@ -605,10 +613,10 @@ class AI3ldhpr<dag oops, dag iops, Format f, string opc,
   let Inst{24}    = 1; // P bit
   let Inst{27-25} = 0b000;
 }
-class AI3ldshpr<dag oops, dag iops, Format f, string opc,
-            string asm, string cstr, list<dag> pattern>
-  : I<oops, iops, AddrMode3, Size4Bytes, IndexModePre, f, opc,
-      asm, cstr, pattern> {
+class AI3ldshpr<dag oops, dag iops, Format f, InstrItinClass itin,
+                string opc, string asm, string cstr, list<dag> pattern>
+  : I<oops, iops, AddrMode3, Size4Bytes, IndexModePre, f, itin,
+      opc, asm, cstr, pattern> {
   let Inst{4}     = 1;
   let Inst{5}     = 1; // H bit
   let Inst{6}     = 1; // S bit
@@ -618,10 +626,10 @@ class AI3ldshpr<dag oops, dag iops, Format f, string opc,
   let Inst{24}    = 1; // P bit
   let Inst{27-25} = 0b000;
 }
-class AI3ldsbpr<dag oops, dag iops, Format f, string opc,
-            string asm, string cstr, list<dag> pattern>
-  : I<oops, iops, AddrMode3, Size4Bytes, IndexModePre, f, opc,
-      asm, cstr, pattern> {
+class AI3ldsbpr<dag oops, dag iops, Format f, InstrItinClass itin,
+                string opc, string asm, string cstr, list<dag> pattern>
+  : I<oops, iops, AddrMode3, Size4Bytes, IndexModePre, f, itin,
+      opc, asm, cstr, pattern> {
   let Inst{4}     = 1;
   let Inst{5}     = 0; // H bit
   let Inst{6}     = 1; // S bit
@@ -633,10 +641,10 @@ class AI3ldsbpr<dag oops, dag iops, Format f, string opc,
 }
 
 // Pre-indexed stores
-class AI3sthpr<dag oops, dag iops, Format f, string opc,
-            string asm, string cstr, list<dag> pattern>
-  : I<oops, iops, AddrMode3, Size4Bytes, IndexModePre, f, opc,
-      asm, cstr, pattern> {
+class AI3sthpr<dag oops, dag iops, Format f, InstrItinClass itin,
+               string opc, string asm, string cstr, list<dag> pattern>
+  : I<oops, iops, AddrMode3, Size4Bytes, IndexModePre, f, itin,
+      opc, asm, cstr, pattern> {
   let Inst{4}     = 1;
   let Inst{5}     = 1; // H bit
   let Inst{6}     = 0; // S bit
@@ -648,10 +656,10 @@ class AI3sthpr<dag oops, dag iops, Format f, string opc,
 }
 
 // Post-indexed loads
-class AI3ldhpo<dag oops, dag iops, Format f, string opc,
-            string asm, string cstr, list<dag> pattern>
-  : I<oops, iops, AddrMode3, Size4Bytes, IndexModePost, f, opc,
-      asm, cstr,pattern> {
+class AI3ldhpo<dag oops, dag iops, Format f, InstrItinClass itin,
+               string opc, string asm, string cstr, list<dag> pattern>
+  : I<oops, iops, AddrMode3, Size4Bytes, IndexModePost, f, itin,
+      opc, asm, cstr,pattern> {
   let Inst{4}     = 1;
   let Inst{5}     = 1; // H bit
   let Inst{6}     = 0; // S bit
@@ -661,10 +669,10 @@ class AI3ldhpo<dag oops, dag iops, Format f, string opc,
   let Inst{24}    = 0; // P bit
   let Inst{27-25} = 0b000;
 }
-class AI3ldshpo<dag oops, dag iops, Format f, string opc,
-            string asm, string cstr, list<dag> pattern>
-  : I<oops, iops, AddrMode3, Size4Bytes, IndexModePost, f, opc,
-      asm, cstr,pattern> {
+class AI3ldshpo<dag oops, dag iops, Format f, InstrItinClass itin,
+                string opc, string asm, string cstr, list<dag> pattern>
+  : I<oops, iops, AddrMode3, Size4Bytes, IndexModePost, f, itin,
+      opc, asm, cstr,pattern> {
   let Inst{4}     = 1;
   let Inst{5}     = 1; // H bit
   let Inst{6}     = 1; // S bit
@@ -674,10 +682,10 @@ class AI3ldshpo<dag oops, dag iops, Format f, string opc,
   let Inst{24}    = 0; // P bit
   let Inst{27-25} = 0b000;
 }
-class AI3ldsbpo<dag oops, dag iops, Format f, string opc,
-            string asm, string cstr, list<dag> pattern>
-  : I<oops, iops, AddrMode3, Size4Bytes, IndexModePost, f, opc,
-      asm, cstr,pattern> {
+class AI3ldsbpo<dag oops, dag iops, Format f, InstrItinClass itin,
+                string opc, string asm, string cstr, list<dag> pattern>
+  : I<oops, iops, AddrMode3, Size4Bytes, IndexModePost, f, itin,
+      opc, asm, cstr,pattern> {
   let Inst{4}     = 1;
   let Inst{5}     = 0; // H bit
   let Inst{6}     = 1; // S bit
@@ -689,10 +697,10 @@ class AI3ldsbpo<dag oops, dag iops, Format f, string opc,
 }
 
 // Post-indexed stores
-class AI3sthpo<dag oops, dag iops, Format f, string opc,
-            string asm, string cstr, list<dag> pattern>
-  : I<oops, iops, AddrMode3, Size4Bytes, IndexModePost, f, opc,
-      asm, cstr,pattern> {
+class AI3sthpo<dag oops, dag iops, Format f, InstrItinClass itin,
+               string opc, string asm, string cstr, list<dag> pattern>
+  : I<oops, iops, AddrMode3, Size4Bytes, IndexModePost, f, itin,
+      opc, asm, cstr,pattern> {
   let Inst{4}     = 1;
   let Inst{5}     = 1; // H bit
   let Inst{6}     = 0; // S bit
@@ -705,53 +713,55 @@ class AI3sthpo<dag oops, dag iops, Format f, string opc,
 
 
 // addrmode4 instructions
-class AXI4ld<dag oops, dag iops, Format f, string asm, list<dag> pattern>
-  : XI<oops, iops, AddrMode4, Size4Bytes, IndexModeNone, f, asm,
-       "", pattern> {
+class AXI4ld<dag oops, dag iops, Format f, InstrItinClass itin,
+             string asm, list<dag> pattern>
+  : XI<oops, iops, AddrMode4, Size4Bytes, IndexModeNone, f, itin,
+       asm, "", pattern> {
   let Inst{20}    = 1; // L bit
   let Inst{22}    = 0; // S bit
   let Inst{27-25} = 0b100;
 }
-class AXI4st<dag oops, dag iops, Format f, string asm, list<dag> pattern>
-  : XI<oops, iops, AddrMode4, Size4Bytes, IndexModeNone, f, asm,
-       "", pattern> {
+class AXI4st<dag oops, dag iops, Format f, InstrItinClass itin,
+             string asm, list<dag> pattern>
+  : XI<oops, iops, AddrMode4, Size4Bytes, IndexModeNone, f, itin,
+       asm, "", pattern> {
   let Inst{20}    = 0; // L bit
   let Inst{22}    = 0; // S bit
   let Inst{27-25} = 0b100;
 }
 
 // Unsigned multiply, multiply-accumulate instructions.
-class AMul1I<bits<7> opcod, dag oops, dag iops, string opc,
-         string asm, list<dag> pattern>
-  : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, MulFrm, opc,
-      asm, "", pattern> {
+class AMul1I<bits<7> opcod, dag oops, dag iops, InstrItinClass itin,
+             string opc, string asm, list<dag> pattern>
+  : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, MulFrm, itin,
+      opc, asm, "", pattern> {
   let Inst{7-4}   = 0b1001;
   let Inst{20}    = 0; // S bit
   let Inst{27-21} = opcod;
 }
-class AsMul1I<bits<7> opcod, dag oops, dag iops, string opc,
-          string asm, list<dag> pattern>
-  : sI<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, MulFrm, opc,
-       asm, "", pattern> {
+class AsMul1I<bits<7> opcod, dag oops, dag iops, InstrItinClass itin,
+              string opc, string asm, list<dag> pattern>
+  : sI<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, MulFrm, itin,
+       opc, asm, "", pattern> {
   let Inst{7-4}   = 0b1001;
   let Inst{27-21} = opcod;
 }
 
 // Most significant word multiply
-class AMul2I<bits<7> opcod, dag oops, dag iops, string opc,
-         string asm, list<dag> pattern>
-  : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, MulFrm, opc,
-      asm, "", pattern> {
+class AMul2I<bits<7> opcod, dag oops, dag iops, InstrItinClass itin,
+             string opc, string asm, list<dag> pattern>
+  : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, MulFrm, itin,
+      opc, asm, "", pattern> {
   let Inst{7-4}   = 0b1001;
   let Inst{20}    = 1;
   let Inst{27-21} = opcod;
 }
 
 // SMUL<x><y> / SMULW<y> / SMLA<x><y> / SMLAW<x><y>
-class AMulxyI<bits<7> opcod, dag oops, dag iops, string opc,
-         string asm, list<dag> pattern>
-  : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, MulFrm, opc,
-      asm, "", pattern> {
+class AMulxyI<bits<7> opcod, dag oops, dag iops, InstrItinClass itin,
+              string opc, string asm, list<dag> pattern>
+  : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, MulFrm, itin,
+      opc, asm, "", pattern> {
   let Inst{4}     = 0;
   let Inst{7}     = 1;
   let Inst{20}    = 0;
@@ -759,19 +769,19 @@ class AMulxyI<bits<7> opcod, dag oops, dag iops, string opc,
 }
 
 // Extend instructions.
-class AExtI<bits<8> opcod, dag oops, dag iops, string opc,
-            string asm, list<dag> pattern>
-  : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, ExtFrm, opc,
-      asm, "", pattern> {
+class AExtI<bits<8> opcod, dag oops, dag iops, InstrItinClass itin,
+            string opc, string asm, list<dag> pattern>
+  : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, ExtFrm, itin,
+      opc, asm, "", pattern> {
   let Inst{7-4}   = 0b0111;
   let Inst{27-20} = opcod;
 }
 
 // Misc Arithmetic instructions.
-class AMiscA1I<bits<8> opcod, dag oops, dag iops, string opc,
-               string asm, list<dag> pattern>
-  : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, ArithMiscFrm, opc,
-      asm, "", pattern> {
+class AMiscA1I<bits<8> opcod, dag oops, dag iops, InstrItinClass itin,
+               string opc, string asm, list<dag> pattern>
+  : I<oops, iops, AddrModeNone, Size4Bytes, IndexModeNone, ArithMiscFrm, itin,
+      opc, asm, "", pattern> {
   let Inst{27-20} = opcod;
 }
 
@@ -796,8 +806,8 @@ class ARMV6Pat<dag pattern, dag result> : Pat<pattern, result> {
 // TI - Thumb instruction.
 
 class ThumbI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
-             string asm, string cstr, list<dag> pattern>
-  : InstARM<am, sz, IndexModeNone, ThumbFrm, cstr> {
+             InstrItinClass itin, string asm, string cstr, list<dag> pattern>
+  : InstARM<am, sz, IndexModeNone, ThumbFrm, cstr, itin> {
   let OutOperandList = oops;
   let InOperandList = iops;
   let AsmString   = asm;
@@ -805,25 +815,25 @@ class ThumbI<dag oops, dag iops, AddrMode am, SizeFlagVal sz,
   list<Predicate> Predicates = [IsThumb];
 }
 
-class TI<dag oops, dag iops, string asm, list<dag> pattern>
-  : ThumbI<oops, iops, AddrModeNone, Size2Bytes, asm, "", pattern>;
+class TI<dag oops, dag iops, InstrItinClass itin, string asm, list<dag> pattern>
+  : ThumbI<oops, iops, AddrModeNone, Size2Bytes, itin, asm, "", pattern>;
 
 // Two-address instructions
-class TIt<dag oops, dag iops, string asm, list<dag> pattern>
-  : ThumbI<oops, iops, AddrModeN