6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-07-25 13:24:46 +00:00
Code Issues Projects Releases Wiki Activity

Handle AddrMode6 (for NEON load/stores) in Thumb2's rewriteT2FrameIndex.

Browse Source 
Radar 7614112.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95456 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bob Wilson
2010-02-06 00:24:38 +00:00
parent d450e5b886
commit e6373eb826
2 changed files with 12 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
lib/Target/ARM/Thumb2InstrInfo.cpp
View File

@@ -382,8 +382,8 @@ bool llvm::rewriteT2FrameIndex(MachineInstr &MI, unsigned FrameRegIdx,
MI.getOperand(FrameRegIdx+1).ChangeToImmediate(ThisImmVal);
} else {
// AddrMode4 cannot handle any offset.
if (AddrMode == ARMII::AddrMode4)
// AddrMode4 and AddrMode6 cannot handle any offset.
if (AddrMode == ARMII::AddrMode4 || AddrMode == ARMII::AddrMode6)
return false;
// AddrModeT2_so cannot handle any offset. If there is no offset
@@ -418,15 +418,12 @@ bool llvm::rewriteT2FrameIndex(MachineInstr &MI, unsigned FrameRegIdx,
NewOpc = positiveOffsetOpcode(Opcode);
NumBits = 12;
}
} else {
// VFP and NEON address modes.
int InstrOffs = 0;
if (AddrMode == ARMII::AddrMode5) {
const MachineOperand &OffOp = MI.getOperand(FrameRegIdx+1);
InstrOffs = ARM_AM::getAM5Offset(OffOp.getImm());
if (ARM_AM::getAM5Op(OffOp.getImm()) == ARM_AM::sub)
InstrOffs *= -1;
}
} else if (AddrMode == ARMII::AddrMode5) {
// VFP address mode.
const MachineOperand &OffOp = MI.getOperand(FrameRegIdx+1);
int InstrOffs = ARM_AM::getAM5Offset(OffOp.getImm());
if (ARM_AM::getAM5Op(OffOp.getImm()) == ARM_AM::sub)
InstrOffs *= -1;
NumBits = 8;
Scale = 4;
Offset += InstrOffs * 4;
@@ -435,6 +432,8 @@ bool llvm::rewriteT2FrameIndex(MachineInstr &MI, unsigned FrameRegIdx,
Offset = -Offset;
isSub = true;
}
} else {
llvm_unreachable("Unsupported addressing mode!");
}
if (NewOpc != Opcode)