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Allow saving and restoring of double and float registers.

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Allow copying of float registers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14445 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Brian Gaeke 2004-06-27 22:59:56 +00:00
parent c53105c749
commit 6bd5551763
2 changed files with 54 additions and 18 deletions
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36
lib/Target/Sparc/SparcRegisterInfo.cpp
View File

@ -30,10 +30,18 @@ int SparcV8RegisterInfo::storeRegToStackSlot(
unsigned SrcReg, int FrameIdx,
const TargetRegisterClass *RC) const
{
assert (RC == SparcV8::IntRegsRegisterClass
&& "Can only store 32-bit values to stack slots");
// On the order of operands here: think "[FrameIdx + 0] = SrcReg".
BuildMI (MBB, I, V8::ST, 3).addFrameIndex (FrameIdx).addSImm (0).addReg (SrcReg);
if (RC == SparcV8::IntRegsRegisterClass)
BuildMI (MBB, I, V8::ST, 3).addFrameIndex (FrameIdx).addSImm (0)
.addReg (SrcReg);
else if (RC == SparcV8::FPRegsRegisterClass)
BuildMI (MBB, I, V8::STFri, 3).addFrameIndex (FrameIdx).addSImm (0)
.addReg (SrcReg);
else if (RC == SparcV8::DFPRegsRegisterClass)
BuildMI (MBB, I, V8::STDFri, 3).addFrameIndex (FrameIdx).addSImm (0)
.addReg (SrcReg);
else
assert (0 && "Can't store this register to stack slot");
return 1;
}
@ -43,9 +51,16 @@ int SparcV8RegisterInfo::loadRegFromStackSlot(
unsigned DestReg, int FrameIdx,
const TargetRegisterClass *RC) const
{
assert (RC == SparcV8::IntRegsRegisterClass
&& "Can only load 32-bit registers from stack slots");
BuildMI (MBB, I, V8::LD, 2, DestReg).addFrameIndex (FrameIdx).addSImm (0);
if (RC == SparcV8::IntRegsRegisterClass)
BuildMI (MBB, I, V8::LD, 2, DestReg).addFrameIndex (FrameIdx).addSImm (0);
else if (RC == SparcV8::FPRegsRegisterClass)
BuildMI (MBB, I, V8::LDFri, 2, DestReg).addFrameIndex (FrameIdx)
.addSImm (0);
else if (RC == SparcV8::DFPRegsRegisterClass)
BuildMI (MBB, I, V8::LDDFri, 2, DestReg).addFrameIndex (FrameIdx)
.addSImm (0);
else
assert (0 && "Can't load this register from stack slot");
return 1;
}
@ -53,9 +68,12 @@ int SparcV8RegisterInfo::copyRegToReg(MachineBasicBlock &MBB,
MachineBasicBlock::iterator I,
unsigned DestReg, unsigned SrcReg,
const TargetRegisterClass *RC) const {
assert (RC == SparcV8::IntRegsRegisterClass
&& "Can only copy 32-bit registers");
BuildMI (MBB, I, V8::ORrr, 2, DestReg).addReg (V8::G0).addReg (SrcReg);
if (RC == SparcV8::IntRegsRegisterClass)
BuildMI (MBB, I, V8::ORrr, 2, DestReg).addReg (V8::G0).addReg (SrcReg);
else if (RC == SparcV8::FPRegsRegisterClass)
BuildMI (MBB, I, V8::FMOVS, 1, DestReg).addReg (SrcReg);
else
assert (0 && "Can't copy this register");
return 1;
}

36
lib/Target/SparcV8/SparcV8RegisterInfo.cpp
View File

@ -30,10 +30,18 @@ int SparcV8RegisterInfo::storeRegToStackSlot(
unsigned SrcReg, int FrameIdx,
const TargetRegisterClass *RC) const
{
assert (RC == SparcV8::IntRegsRegisterClass
&& "Can only store 32-bit values to stack slots");
// On the order of operands here: think "[FrameIdx + 0] = SrcReg".
BuildMI (MBB, I, V8::ST, 3).addFrameIndex (FrameIdx).addSImm (0).addReg (SrcReg);
if (RC == SparcV8::IntRegsRegisterClass)
BuildMI (MBB, I, V8::ST, 3).addFrameIndex (FrameIdx).addSImm (0)
.addReg (SrcReg);
else if (RC == SparcV8::FPRegsRegisterClass)
BuildMI (MBB, I, V8::STFri, 3).addFrameIndex (FrameIdx).addSImm (0)
.addReg (SrcReg);
else if (RC == SparcV8::DFPRegsRegisterClass)
BuildMI (MBB, I, V8::STDFri, 3).addFrameIndex (FrameIdx).addSImm (0)
.addReg (SrcReg);
else
assert (0 && "Can't store this register to stack slot");
return 1;
}
@ -43,9 +51,16 @@ int SparcV8RegisterInfo::loadRegFromStackSlot(
unsigned DestReg, int FrameIdx,
const TargetRegisterClass *RC) const
{
assert (RC == SparcV8::IntRegsRegisterClass
&& "Can only load 32-bit registers from stack slots");
BuildMI (MBB, I, V8::LD, 2, DestReg).addFrameIndex (FrameIdx).addSImm (0);
if (RC == SparcV8::IntRegsRegisterClass)
BuildMI (MBB, I, V8::LD, 2, DestReg).addFrameIndex (FrameIdx).addSImm (0);
else if (RC == SparcV8::FPRegsRegisterClass)
BuildMI (MBB, I, V8::LDFri, 2, DestReg).addFrameIndex (FrameIdx)
.addSImm (0);
else if (RC == SparcV8::DFPRegsRegisterClass)
BuildMI (MBB, I, V8::LDDFri, 2, DestReg).addFrameIndex (FrameIdx)
.addSImm (0);
else
assert (0 && "Can't load this register from stack slot");
return 1;
}
@ -53,9 +68,12 @@ int SparcV8RegisterInfo::copyRegToReg(MachineBasicBlock &MBB,
MachineBasicBlock::iterator I,
unsigned DestReg, unsigned SrcReg,
const TargetRegisterClass *RC) const {
assert (RC == SparcV8::IntRegsRegisterClass
&& "Can only copy 32-bit registers");
BuildMI (MBB, I, V8::ORrr, 2, DestReg).addReg (V8::G0).addReg (SrcReg);
if (RC == SparcV8::IntRegsRegisterClass)
BuildMI (MBB, I, V8::ORrr, 2, DestReg).addReg (V8::G0).addReg (SrcReg);
else if (RC == SparcV8::FPRegsRegisterClass)
BuildMI (MBB, I, V8::FMOVS, 1, DestReg).addReg (SrcReg);
else
assert (0 && "Can't copy this register");
return 1;
}