[llvm-commits] [llvm] r169174 - /llvm/trunk/lib/Target/Mips/MipsCodeEmitter.cpp

[Akira Hatanaka]

Author: ahatanak
Date: Mon Dec  3 16:51:22 2012
New Revision: 169174

URL: http://llvm.org/viewvc/llvm-project?rev=169174&view=rev
Log:
Functions in MipsCodeEmitter.cpp that expand unaligned loads/stores are dead
code. Removing it.

Patch by Petar Jovanovic.

Modified:
    llvm/trunk/lib/Target/Mips/MipsCodeEmitter.cpp

Modified: llvm/trunk/lib/Target/Mips/MipsCodeEmitter.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Mips/MipsCodeEmitter.cpp?rev=169174&r1=169173&r2=169174&view=diff
==============================================================================
--- llvm/trunk/lib/Target/Mips/MipsCodeEmitter.cpp (original)
+++ llvm/trunk/lib/Target/Mips/MipsCodeEmitter.cpp Mon Dec  3 16:51:22 2012
@@ -112,12 +112,6 @@
     unsigned getSizeExtEncoding(const MachineInstr &MI, unsigned OpNo) const;
     unsigned getSizeInsEncoding(const MachineInstr &MI, unsigned OpNo) const;
 
-    int emitULW(const MachineInstr &MI);
-    int emitUSW(const MachineInstr &MI);
-    int emitULH(const MachineInstr &MI);
-    int emitULHu(const MachineInstr &MI);
-    int emitUSH(const MachineInstr &MI);
-
     void emitGlobalAddressUnaligned(const GlobalValue *GV, unsigned Reloc,
                                     int Offset) const;
   };
@@ -271,103 +265,6 @@
                                              Reloc, BB));
 }
 
-int MipsCodeEmitter::emitUSW(const MachineInstr &MI) {
-  unsigned src = getMachineOpValue(MI, MI.getOperand(0));
-  unsigned base = getMachineOpValue(MI, MI.getOperand(1));
-  unsigned offset = getMachineOpValue(MI, MI.getOperand(2));
-  // swr src, offset(base)
-  // swl src, offset+3(base)
-  MCE.emitWordLE(
-    (0x2e << 26) | (base << 21) | (src << 16) | (offset & 0xffff));
-  MCE.emitWordLE(
-    (0x2a << 26) | (base << 21) | (src << 16) | ((offset+3) & 0xffff));
-  return 2;
-}
-
-int MipsCodeEmitter::emitULW(const MachineInstr &MI) {
-  unsigned dst = getMachineOpValue(MI, MI.getOperand(0));
-  unsigned base = getMachineOpValue(MI, MI.getOperand(1));
-  unsigned offset = getMachineOpValue(MI, MI.getOperand(2));
-  unsigned at = 1;
-  if (dst != base) {
-    // lwr dst, offset(base)
-    // lwl dst, offset+3(base)
-    MCE.emitWordLE(
-      (0x26 << 26) | (base << 21) | (dst << 16) | (offset & 0xffff));
-    MCE.emitWordLE(
-      (0x22 << 26) | (base << 21) | (dst << 16) | ((offset+3) & 0xffff));
-    return 2;
-  } else {
-    // lwr at, offset(base)
-    // lwl at, offset+3(base)
-    // addu dst, at, $zero
-    MCE.emitWordLE(
-      (0x26 << 26) | (base << 21) | (at << 16) | (offset & 0xffff));
-    MCE.emitWordLE(
-      (0x22 << 26) | (base << 21) | (at << 16) | ((offset+3) & 0xffff));
-    MCE.emitWordLE(
-      (0x0 << 26) | (at << 21) | (0x0 << 16) | (dst << 11) | (0x0 << 6) | 0x21);
-    return 3;
-  }
-}
-
-int MipsCodeEmitter::emitUSH(const MachineInstr &MI) {
-  unsigned src = getMachineOpValue(MI, MI.getOperand(0));
-  unsigned base = getMachineOpValue(MI, MI.getOperand(1));
-  unsigned offset = getMachineOpValue(MI, MI.getOperand(2));
-  unsigned at = 1;
-  // sb src, offset(base)
-  // srl at,src,8
-  // sb at, offset+1(base)
-  MCE.emitWordLE(
-    (0x28 << 26) | (base << 21) | (src << 16) | (offset & 0xffff));
-  MCE.emitWordLE(
-    (0x0 << 26) | (0x0 << 21) | (src << 16) | (at << 11) | (0x8 << 6) | 0x2);
-  MCE.emitWordLE(
-    (0x28 << 26) | (base << 21) | (at << 16) | ((offset+1) & 0xffff));
-  return 3;
-}
-
-int MipsCodeEmitter::emitULH(const MachineInstr &MI) {
-  unsigned dst = getMachineOpValue(MI, MI.getOperand(0));
-  unsigned base = getMachineOpValue(MI, MI.getOperand(1));
-  unsigned offset = getMachineOpValue(MI, MI.getOperand(2));
-  unsigned at = 1;
-  // lbu at, offset(base)
-  // lb dst, offset+1(base)
-  // sll dst,dst,8
-  // or dst,dst,at
-  MCE.emitWordLE(
-    (0x24 << 26) | (base << 21) | (at << 16) | (offset & 0xffff));
-  MCE.emitWordLE(
-    (0x20 << 26) | (base << 21) | (dst << 16) | ((offset+1) & 0xffff));
-  MCE.emitWordLE(
-    (0x0 << 26) | (0x0 << 21) | (dst << 16) | (dst << 11) | (0x8 << 6) | 0x0);
-  MCE.emitWordLE(
-    (0x0 << 26) | (dst << 21) | (at << 16) | (dst << 11) | (0x0 << 6) | 0x25);
-  return 4;
-}
-
-int MipsCodeEmitter::emitULHu(const MachineInstr &MI) {
-  unsigned dst = getMachineOpValue(MI, MI.getOperand(0));
-  unsigned base = getMachineOpValue(MI, MI.getOperand(1));
-  unsigned offset = getMachineOpValue(MI, MI.getOperand(2));
-  unsigned at = 1;
-  // lbu at, offset(base)
-  // lbu dst, offset+1(base)
-  // sll dst,dst,8
-  // or dst,dst,at
-  MCE.emitWordLE(
-    (0x24 << 26) | (base << 21) | (at << 16) | (offset & 0xffff));
-  MCE.emitWordLE(
-    (0x24 << 26) | (base << 21) | (dst << 16) | ((offset+1) & 0xffff));
-  MCE.emitWordLE(
-    (0x0 << 26) | (0x0 << 21) | (dst << 16) | (dst << 11) | (0x8 << 6) | 0x0);
-  MCE.emitWordLE(
-    (0x0 << 26) | (dst << 21) | (at << 16) | (dst << 11) | (0x0 << 6) | 0x25);
-  return 4;
-}
-
 void MipsCodeEmitter::emitInstruction(const MachineInstr &MI) {
   DEBUG(errs() << "JIT: " << (void*)MCE.getCurrentPCValue() << ":\t" << MI);