6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-08-05 13:26:55 +00:00
Code Issues Projects Releases Wiki Activity

Split ISD::LABEL into ISD::DBG_LABEL and ISD::EH_LABEL, eliminating

Browse Source 
the need for a flavor operand, and add a new SDNode subclass,
LabelSDNode, for use with them to eliminate the need for a label id
operand.

Change instruction selection to let these label nodes through
unmodified instead of creating copies of them. Teach the MachineInstr
emitter how to emit a MachineInstr directly from an ISD label node.

This avoids the need for allocating SDNodes for the label id and
flavor value, as well as SDNodes for each of the post-isel label,
label id, and label flavor.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52943 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2008-07-01 00:05:16 +00:00
parent c2bf1870a7
commit 4406604047
35 changed files with 192 additions and 114 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
lib/Target/CellSPU/SPURegisterInfo.cpp
View File

@@ -444,7 +444,7 @@ void SPURegisterInfo::emitPrologue(MachineFunction &MF) const
if (hasDebugInfo) {
// Mark effective beginning of when frame pointer becomes valid.
FrameLabelId = MMI->NextLabelID();
BuildMI(MBB, MBBI, TII.get(SPU::LABEL)).addImm(FrameLabelId).addImm(0);
BuildMI(MBB, MBBI, TII.get(SPU::DBG_LABEL)).addImm(FrameLabelId);
}
// Adjust stack pointer, spilling $lr -> 16($sp) and $sp -> -FrameSize($sp)
@@ -504,7 +504,7 @@ void SPURegisterInfo::emitPrologue(MachineFunction &MF) const
// Mark effective beginning of when frame pointer is ready.
unsigned ReadyLabelId = MMI->NextLabelID();
BuildMI(MBB, MBBI, TII.get(SPU::LABEL)).addImm(ReadyLabelId).addImm(0);
BuildMI(MBB, MBBI, TII.get(SPU::DBG_LABEL)).addImm(ReadyLabelId);
MachineLocation FPDst(SPU::R1);
MachineLocation FPSrc(MachineLocation::VirtualFP);
@@ -518,7 +518,7 @@ void SPURegisterInfo::emitPrologue(MachineFunction &MF) const
MachineBasicBlock::iterator MBBI = prior(MBB.end());
// Insert terminator label
unsigned BranchLabelId = MMI->NextLabelID();
BuildMI(MBB, MBBI, TII.get(SPU::LABEL)).addImm(BranchLabelId).addImm(0);
BuildMI(MBB, MBBI, TII.get(SPU::DBG_LABEL)).addImm(BranchLabelId);
}
}
}