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Extract a function. 

llvm-svn: 179086
This commit is contained in:
Jakob Stoklund Olesen 2013-04-09 05:11:52 +00:00
parent 757aec9507
commit c910feb4a8
1 changed files with 17 additions and 31 deletions
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48
llvm/lib/Target/Sparc/SparcISelLowering.cpp
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@ -148,6 +148,16 @@ static bool CC_Sparc64_Half(unsigned &ValNo, MVT &ValVT,
#include "SparcGenCallingConv.inc"
// The calling conventions in SparcCallingConv.td are described in terms of the
// callee's register window. This function translates registers to the
// corresponding caller window %o register.
static unsigned toCallerWindow(unsigned Reg) {
assert(SP::I0 + 7 == SP::I7 && SP::O0 + 7 == SP::O7 && "Unexpected enum");
if (Reg >= SP::I0 && Reg <= SP::I7)
return Reg - SP::I0 + SP::O0;
return Reg;
}
SDValue
SparcTargetLowering::LowerReturn(SDValue Chain,
CallingConv::ID CallConv, bool IsVarArg,
@ -805,11 +815,7 @@ SparcTargetLowering::LowerCall_32(TargetLowering::CallLoweringInfo &CLI,
// stuck together.
SDValue InFlag;
for (unsigned i = 0, e = RegsToPass.size(); i != e; ++i) {
unsigned Reg = RegsToPass[i].first;
// Remap I0->I7 -> O0->O7.
if (Reg >= SP::I0 && Reg <= SP::I7)
Reg = Reg-SP::I0+SP::O0;
unsigned Reg = toCallerWindow(RegsToPass[i].first);
Chain = DAG.getCopyToReg(Chain, dl, Reg, RegsToPass[i].second, InFlag);
InFlag = Chain.getValue(1);
}
@ -831,13 +837,9 @@ SparcTargetLowering::LowerCall_32(TargetLowering::CallLoweringInfo &CLI,
Ops.push_back(Callee);
if (hasStructRetAttr)
Ops.push_back(DAG.getTargetConstant(SRetArgSize, MVT::i32));
for (unsigned i = 0, e = RegsToPass.size(); i != e; ++i) {
unsigned Reg = RegsToPass[i].first;
if (Reg >= SP::I0 && Reg <= SP::I7)
Reg = Reg-SP::I0+SP::O0;
Ops.push_back(DAG.getRegister(Reg, RegsToPass[i].second.getValueType()));
}
for (unsigned i = 0, e = RegsToPass.size(); i != e; ++i)
Ops.push_back(DAG.getRegister(toCallerWindow(RegsToPass[i].first),
RegsToPass[i].second.getValueType()));
if (InFlag.getNode())
Ops.push_back(InFlag);
@ -857,13 +859,7 @@ SparcTargetLowering::LowerCall_32(TargetLowering::CallLoweringInfo &CLI,
// Copy all of the result registers out of their specified physreg.
for (unsigned i = 0; i != RVLocs.size(); ++i) {
unsigned Reg = RVLocs[i].getLocReg();
// Remap I0->I7 -> O0->O7.
if (Reg >= SP::I0 && Reg <= SP::I7)
Reg = Reg-SP::I0+SP::O0;
Chain = DAG.getCopyFromReg(Chain, dl, Reg,
Chain = DAG.getCopyFromReg(Chain, dl, toCallerWindow(RVLocs[i].getLocReg()),
RVLocs[i].getValVT(), InFlag).getValue(1);
InFlag = Chain.getValue(2);
InVals.push_back(Chain.getValue(0));
@ -976,13 +972,7 @@ SparcTargetLowering::LowerCall_64(TargetLowering::CallLoweringInfo &CLI,
++i;
}
}
// The argument registers are described in term of the callee's register
// window, so translate I0-I7 -> O0-O7.
unsigned Reg = VA.getLocReg();
if (Reg >= SP::I0 && Reg <= SP::I7)
Reg = Reg - SP::I0 + SP::O0;
RegsToPass.push_back(std::make_pair(Reg, Arg));
RegsToPass.push_back(std::make_pair(toCallerWindow(VA.getLocReg()), Arg));
continue;
}
@ -1061,11 +1051,7 @@ SparcTargetLowering::LowerCall_64(TargetLowering::CallLoweringInfo &CLI,
// Copy all of the result registers out of their specified physreg.
for (unsigned i = 0; i != RVLocs.size(); ++i) {
CCValAssign &VA = RVLocs[i];
unsigned Reg = VA.getLocReg();
// Remap I0-I7 -> O0-O7.
if (Reg >= SP::I0 && Reg <= SP::I7)
Reg = Reg - SP::I0 + SP::O0;
unsigned Reg = toCallerWindow(VA.getLocReg());
// When returning 'inreg {i32, i32 }', two consecutive i32 arguments can
// reside in the same register in the high and low bits. Reuse the