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| author | Dan Gohman <gohman@apple.com> | 2008-07-01 00:05:16 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2008-07-01 00:05:16 +0000 |
| commit | 4406604047423576e36657c7ede266ca42e79642 (patch) | |
| tree | e169d28b09c59d954867d6bac98f8fffe8494096 /lib/Target/PowerPC | |
| parent | c2bf1870a7317bd38102e74d261aa8f92c013744 (diff) | |
| download | external_llvm-4406604047423576e36657c7ede266ca42e79642.zip external_llvm-4406604047423576e36657c7ede266ca42e79642.tar.gz external_llvm-4406604047423576e36657c7ede266ca42e79642.tar.bz2 | |
Split ISD::LABEL into ISD::DBG_LABEL and ISD::EH_LABEL, eliminating
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
Diffstat (limited to 'lib/Target/PowerPC')
| -rw-r--r-- | lib/Target/PowerPC/PPCCodeEmitter.cpp | 3 | ||||
| -rw-r--r-- | lib/Target/PowerPC/PPCInstrInfo.cpp | 5 | ||||
| -rw-r--r-- | lib/Target/PowerPC/PPCRegisterInfo.cpp | 4 |
3 files changed, 7 insertions, 5 deletions
diff --git a/lib/Target/PowerPC/PPCCodeEmitter.cpp b/lib/Target/PowerPC/PPCCodeEmitter.cpp index 51672be..2dfdda3 100644 --- a/lib/Target/PowerPC/PPCCodeEmitter.cpp +++ b/lib/Target/PowerPC/PPCCodeEmitter.cpp @@ -105,7 +105,8 @@ void PPCCodeEmitter::emitBasicBlock(MachineBasicBlock &MBB) { default: MCE.emitWordBE(getBinaryCodeForInstr(*I)); break; - case TargetInstrInfo::LABEL: + case TargetInstrInfo::DBG_LABEL: + case TargetInstrInfo::EH_LABEL: MCE.emitLabel(MI.getOperand(0).getImm()); break; case TargetInstrInfo::IMPLICIT_DEF: diff --git a/lib/Target/PowerPC/PPCInstrInfo.cpp b/lib/Target/PowerPC/PPCInstrInfo.cpp index d7adea3..378fa4b 100644 --- a/lib/Target/PowerPC/PPCInstrInfo.cpp +++ b/lib/Target/PowerPC/PPCInstrInfo.cpp @@ -754,9 +754,10 @@ unsigned PPCInstrInfo::GetInstSizeInBytes(const MachineInstr *MI) const { const char *AsmStr = MI->getOperand(0).getSymbolName(); return MF->getTarget().getTargetAsmInfo()->getInlineAsmLength(AsmStr); } - case PPC::LABEL: { + case PPC::DBG_LABEL: + case PPC::EH_LABEL: + case PPC::GC_LABEL: return 0; - } default: return 4; // PowerPC instructions are all 4 bytes } diff --git a/lib/Target/PowerPC/PPCRegisterInfo.cpp b/lib/Target/PowerPC/PPCRegisterInfo.cpp index d8ea207..7adf875 100644 --- a/lib/Target/PowerPC/PPCRegisterInfo.cpp +++ b/lib/Target/PowerPC/PPCRegisterInfo.cpp @@ -1068,7 +1068,7 @@ PPCRegisterInfo::emitPrologue(MachineFunction &MF) const { if (needsFrameMoves) { // Mark effective beginning of when frame pointer becomes valid. FrameLabelId = MMI->NextLabelID(); - BuildMI(MBB, MBBI, TII.get(PPC::LABEL)).addImm(FrameLabelId).addImm(0); + BuildMI(MBB, MBBI, TII.get(PPC::DBG_LABEL)).addImm(FrameLabelId); } // Adjust stack pointer: r1 += NegFrameSize. @@ -1177,7 +1177,7 @@ PPCRegisterInfo::emitPrologue(MachineFunction &MF) const { // Mark effective beginning of when frame pointer is ready. unsigned ReadyLabelId = MMI->NextLabelID(); - BuildMI(MBB, MBBI, TII.get(PPC::LABEL)).addImm(ReadyLabelId).addImm(0); + BuildMI(MBB, MBBI, TII.get(PPC::DBG_LABEL)).addImm(ReadyLabelId); MachineLocation FPDst(HasFP ? (IsPPC64 ? PPC::X31 : PPC::R31) : (IsPPC64 ? PPC::X1 : PPC::R1)); |