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Remove some dead code now that the dag combiner exists.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23754 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nate Begeman 2005-10-15 22:08:02 +00:00
parent 4cb5a1b896
commit 34f342e36f
1 changed files with 0 additions and 15 deletions
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15
lib/Target/X86/X86ISelPattern.cpp
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@ -2428,21 +2428,6 @@ unsigned ISel::SelectExpr(SDOperand N) {
return Result; return Result;
} }
case ISD::TRUNCATE: case ISD::TRUNCATE:
// Fold TRUNCATE (LOAD P) into a smaller load from P.
// FIXME: This should be performed by the DAGCombiner.
if (isFoldableLoad(N.getOperand(0), SDOperand())) {
switch (N.getValueType()) {
default: assert(0 && "Unknown truncate!");
case MVT::i1:
case MVT::i8: Opc = X86::MOV8rm; break;
case MVT::i16: Opc = X86::MOV16rm; break;
}
X86AddressMode AM;
EmitFoldedLoad(N.getOperand(0), AM);
addFullAddress(BuildMI(BB, Opc, 4, Result), AM);
return Result;
}
// Handle cast of LARGER int to SMALLER int using a move to EAX followed by // Handle cast of LARGER int to SMALLER int using a move to EAX followed by
// a move out of AX or AL. // a move out of AX or AL.
switch (N.getOperand(0).getValueType()) { switch (N.getOperand(0).getValueType()) {