[llvm-commits] [llvm] r169174 - /llvm/trunk/lib/Target/Mips/MipsCodeEmitter.cpp
Akira Hatanaka
ahatanaka at mips.com
Mon Dec 3 14:51:22 PST 2012
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);
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