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Remove some dead cases.

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Emit the indcall sequence as:

mtctr inreg
mr R12, inreg
btctr

If inreg and R12 aren't coallesced, this reduces the odds of having the mtctr
and btctr in the same dispatch group.  :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23023 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2005-08-24 22:21:47 +00:00
parent 14b392af1d
commit 86fac6b00a
1 changed files with 1 additions and 7 deletions
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8
lib/Target/PowerPC/PPCISelPattern.cpp
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@@ -980,8 +980,8 @@ unsigned ISel::SelectExpr(SDOperand N, bool Recording) {
true); true);
} else { } else {
Tmp1 = SelectExpr(N.getOperand(1)); Tmp1 = SelectExpr(N.getOperand(1));
BuildMI(BB, PPC::MTCTR, 1).addReg(Tmp1);
BuildMI(BB, PPC::OR, 2, PPC::R12).addReg(Tmp1).addReg(Tmp1); BuildMI(BB, PPC::OR, 2, PPC::R12).addReg(Tmp1).addReg(Tmp1);
BuildMI(BB, PPC::MTCTR, 1).addReg(PPC::R12);
CallMI = BuildMI(PPC::CALLindirect, 3).addImm(20).addImm(0) CallMI = BuildMI(PPC::CALLindirect, 3).addImm(20).addImm(0)
.addReg(PPC::R12); .addReg(PPC::R12);
} }
@@ -995,9 +995,6 @@ unsigned ISel::SelectExpr(SDOperand N, bool Recording) {
for(int i = 0, e = ArgVR.size(); i < e; ++i) { for(int i = 0, e = ArgVR.size(); i < e; ++i) {
switch(N.getOperand(i+2).getValueType()) { switch(N.getOperand(i+2).getValueType()) {
default: Node->dump(); assert(0 && "Unknown value type for call"); default: Node->dump(); assert(0 && "Unknown value type for call");
case MVT::i1:
case MVT::i8:
case MVT::i16:
case MVT::i32: case MVT::i32:
assert(GPR_idx < 8 && "Too many int args"); assert(GPR_idx < 8 && "Too many int args");
if (N.getOperand(i+2).getOpcode() != ISD::UNDEF) { if (N.getOperand(i+2).getOpcode() != ISD::UNDEF) {
@@ -1022,9 +1019,6 @@ unsigned ISel::SelectExpr(SDOperand N, bool Recording) {
switch (Node->getValueType(0)) { switch (Node->getValueType(0)) {
default: assert(0 && "Unknown value type for call result!"); default: assert(0 && "Unknown value type for call result!");
case MVT::Other: return 1; case MVT::Other: return 1;
case MVT::i1:
case MVT::i8:
case MVT::i16:
case MVT::i32: case MVT::i32:
if (Node->getValueType(1) == MVT::i32) { if (Node->getValueType(1) == MVT::i32) {
BuildMI(BB, PPC::OR, 2, Result+1).addReg(PPC::R3).addReg(PPC::R3); BuildMI(BB, PPC::OR, 2, Result+1).addReg(PPC::R3).addReg(PPC::R3);