6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-06-17 20:23:59 +00:00
Code Issues Projects Releases Wiki Activity

Remove redundant writeback flag in ARM addressing mode 5.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98648 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bob Wilson
2010-03-16 18:38:09 +00:00
parent ab3460519e
commit 2d357f6b44
6 changed files with 14 additions and 23 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
lib/Target/ARM/ARMLoadStoreOptimizer.cpp
View File

@ -253,7 +253,7 @@ ARMLoadStoreOpt::MergeOps(MachineBasicBlock &MBB,
.addImm(ARM_AM::getAM4ModeImm(Mode)).addImm(Pred).addReg(PredReg)
: BuildMI(MBB, MBBI, dl, TII->get(Opcode))
.addReg(Base, getKillRegState(BaseKill))
.addImm(ARM_AM::getAM5Opc(Mode, false, isDPR ? NumRegs<<1 : NumRegs))
.addImm(ARM_AM::getAM5Opc(Mode, isDPR ? NumRegs<<1 : NumRegs))
.addImm(Pred).addReg(PredReg);
for (unsigned i = 0; i != NumRegs; ++i)
MIB = MIB.addReg(Regs[i].first, getDefRegState(isDef)
@ -508,7 +508,6 @@ bool ARMLoadStoreOpt::MergeBaseUpdateLSMultiple(MachineBasicBlock &MBB,
Mode = ARM_AM::getAM4SubMode(MI->getOperand(1).getImm());
} else {
// VLDM{D|S}, VSTM{D|S} addressing mode 5 ops.
assert(!ARM_AM::getAM5WBFlag(MI->getOperand(1).getImm()));
Mode = ARM_AM::getAM5SubMode(MI->getOperand(1).getImm());
Offset = ARM_AM::getAM5Offset(MI->getOperand(1).getImm());
}
@ -576,7 +575,7 @@ bool ARMLoadStoreOpt::MergeBaseUpdateLSMultiple(MachineBasicBlock &MBB,
.addImm(Pred).addReg(PredReg);
} else {
// VLDM[SD}_UPD, VSTM[SD]_UPD
MIB.addImm(ARM_AM::getAM5Opc(Mode, true, Offset))
MIB.addImm(ARM_AM::getAM5Opc(Mode, Offset))
.addImm(Pred).addReg(PredReg);
}
// Transfer the rest of operands.
@ -708,7 +707,7 @@ bool ARMLoadStoreOpt::MergeBaseUpdateLoadStore(MachineBasicBlock &MBB,
unsigned Offset = 0;
if (isAM5)
Offset = ARM_AM::getAM5Opc(AddSub == ARM_AM::sub ? ARM_AM::db : ARM_AM::ia,
true, (isDPR ? 2 : 1));
(isDPR ? 2 : 1));
else if (isAM2)
Offset = ARM_AM::getAM2Opc(AddSub, Bytes, ARM_AM::no_shift);
else