From 7f9e66063df6e1d00daed3903daba8cc6bd7dcf4 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Sat, 17 Dec 2005 22:22:53 +0000
Subject: [PATCH] Add patterns for multiply, simplify Y register handling
 stuff, add RDY instruction

llvm-svn: 24796
---
 lib/Target/SparcV8/SparcV8ISelSimple.cpp  |  4 ++--
 lib/Target/SparcV8/SparcV8InstrInfo.td    | 23 +++++++++++++++--------
 lib/Target/SparcV8/SparcV8RegisterInfo.td |  7 -------
 3 files changed, 17 insertions(+), 17 deletions(-)

diff --git a/lib/Target/SparcV8/SparcV8ISelSimple.cpp b/lib/Target/SparcV8/SparcV8ISelSimple.cpp
index 344dc17aafd..2e3530c3cf2 100644
--- a/lib/Target/SparcV8/SparcV8ISelSimple.cpp
+++ b/lib/Target/SparcV8/SparcV8ISelSimple.cpp
@@ -1480,11 +1480,11 @@ void V8ISel::visitBinaryOperator (Instruction &I) {
       unsigned Tmp = makeAnotherReg (I.getType ());
       // Sign extend into the Y register
       BuildMI (BB, V8::SRAri, 2, Tmp).addReg (Op0Reg).addZImm (31);
-      BuildMI (BB, V8::WRrr, 2, V8::Y).addReg (Tmp).addReg (V8::G0);
+      BuildMI (BB, V8::WRYrr, 2).addReg (Tmp).addReg (V8::G0);
       BuildMI (BB, V8::SDIVrr, 2, Dest).addReg (Op0Reg).addReg (Op1Reg);
     } else {
       // Zero extend into the Y register, ie, just set it to zero
-      BuildMI (BB, V8::WRrr, 2, V8::Y).addReg (V8::G0).addReg (V8::G0);
+      BuildMI (BB, V8::WRYrr, 2).addReg (V8::G0).addReg (V8::G0);
       BuildMI (BB, V8::UDIVrr, 2, Dest).addReg (Op0Reg).addReg (Op1Reg);
     }
 
diff --git a/lib/Target/SparcV8/SparcV8InstrInfo.td b/lib/Target/SparcV8/SparcV8InstrInfo.td
index 6c1bf26005c..ca9126a7448 100644
--- a/lib/Target/SparcV8/SparcV8InstrInfo.td
+++ b/lib/Target/SparcV8/SparcV8InstrInfo.td
@@ -358,10 +358,12 @@ def UMULri  : F3_2<2, 0b001010,
                    "umul $b, $c, $dst", []>;
 def SMULrr  : F3_1<2, 0b001011, 
                    (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
-                   "smul $b, $c, $dst", []>;
+                   "smul $b, $c, $dst",
+                   [(set IntRegs:$dst, (mul IntRegs:$b, IntRegs:$c))]>;
 def SMULri  : F3_2<2, 0b001011,
                    (ops IntRegs:$dst, IntRegs:$b, i32imm:$c),
-                   "smul $b, $c, $dst", []>;
+                   "smul $b, $c, $dst",
+                   [(set IntRegs:$dst, (mul IntRegs:$b, simm13:$c))]>;
 
 // Section B.19 - Divide Instructions, p. 115
 def UDIVrr   : F3_1<2, 0b001110, 
@@ -467,13 +469,18 @@ let Uses = [O0, O1, O2, O3, O4, O5], hasDelaySlot = 1, isCall = 1 in {
                     "jmpl $b+$c, $dst", []>;
 }
 
+// Section B.28 - Read State Register Instructions
+def RDY : F3_1<2, 0b101000,
+               (ops IntRegs:$dst),
+               "rdy $dst", []>;
+
 // Section B.29 - Write State Register Instructions
-def WRrr : F3_1<2, 0b110000,
-                (ops IntRegs:$dst, IntRegs:$b, IntRegs:$c),
-                "wr $b, $c, $dst", []>;
-def WRri : F3_2<2, 0b110000,
-                (ops IntRegs:$dst, IntRegs:$b, i32imm:$c),
-                "wr $b, $c, $dst", []>;
+def WRYrr : F3_1<2, 0b110000,
+                 (ops IntRegs:$b, IntRegs:$c),
+                 "wr $b, $c, %y", []>;
+def WRYri : F3_2<2, 0b110000,
+                 (ops IntRegs:$b, i32imm:$c),
+                 "wr $b, $c, %y", []>;
 
 // Convert Integer to Floating-point Instructions, p. 141
 def FITOS : F3_3<2, 0b110100, 0b011000100,
diff --git a/lib/Target/SparcV8/SparcV8RegisterInfo.td b/lib/Target/SparcV8/SparcV8RegisterInfo.td
index 40eb185b71f..52ddf59721a 100644
--- a/lib/Target/SparcV8/SparcV8RegisterInfo.td
+++ b/lib/Target/SparcV8/SparcV8RegisterInfo.td
@@ -30,11 +30,6 @@ class Rd<bits<5> num, string n, list<Register> aliases> : SparcReg<n> {
   let Num = num;
   let Aliases = aliases;
 }
-// Rs - Special "ancillary state registers" registers, like the Y, ASR, PSR,
-// WIM, TBR, etc registers
-class Rs<bits<5> num, string n> : SparcReg<n> {
-  let Num = num;
-}
 
 // Integer registers
 def G0 : Ri< 0, "G0">; def G1 : Ri< 1, "G1">; def G2 : Ri< 2, "G2">; 
@@ -76,8 +71,6 @@ def D10 : Rd<20, "F20", [F20, F21]>; def D11 : Rd<22, "F22", [F22, F23]>;
 def D12 : Rd<24, "F24", [F24, F25]>; def D13 : Rd<26, "F26", [F26, F27]>; 
 def D14 : Rd<28, "F28", [F28, F29]>; def D15 : Rd<30, "F30", [F30, F31]>;
 
-// The Y register.
-def Y   : Rs<0, "Y">;
 
 // Register classes.
 //