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Functions in MipsCodeEmitter.cpp that expand unaligned loads/stores are dead

Browse Source 
code. Removing it.

Patch by Petar Jovanovic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169174 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Akira Hatanaka 2012-12-03 22:51:22 +00:00
parent fc29db1214
commit 25752e7be7
1 changed files with 0 additions and 103 deletions
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103
lib/Target/Mips/MipsCodeEmitter.cpp
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@ -112,12 +112,6 @@ class MipsCodeEmitter : public MachineFunctionPass {
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 @@ void MipsCodeEmitter::emitMachineBasicBlock(MachineBasicBlock *BB,
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);