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Make the NaN test come second, heuristically assuming 

that NaNs are less common.

llvm-svn: 57871
This commit is contained in:
Dan Gohman 2008-10-21 03:12:54 +00:00
parent 72e66eedb8
commit 97d3f6cfe3
1 changed files with 12 additions and 12 deletions
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24
llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
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@ -4901,18 +4901,18 @@ void SelectionDAGLegalize::LegalizeSetCCCondCode(MVT VT,
unsigned Opc = 0;
switch (CCCode) {
default: assert(0 && "Don't know how to expand this condition!"); abort();
case ISD::SETOEQ: CC1 = ISD::SETO; CC2 = ISD::SETEQ; Opc = ISD::AND; break;
case ISD::SETOGT: CC1 = ISD::SETO; CC2 = ISD::SETGT; Opc = ISD::AND; break;
case ISD::SETOGE: CC1 = ISD::SETO; CC2 = ISD::SETGE; Opc = ISD::AND; break;
case ISD::SETOLT: CC1 = ISD::SETO; CC2 = ISD::SETLT; Opc = ISD::AND; break;
case ISD::SETOLE: CC1 = ISD::SETO; CC2 = ISD::SETLE; Opc = ISD::AND; break;
case ISD::SETONE: CC1 = ISD::SETO; CC2 = ISD::SETNE; Opc = ISD::AND; break;
case ISD::SETUEQ: CC1 = ISD::SETUO; CC2 = ISD::SETEQ; Opc = ISD::OR; break;
case ISD::SETUGT: CC1 = ISD::SETUO; CC2 = ISD::SETGT; Opc = ISD::OR; break;
case ISD::SETUGE: CC1 = ISD::SETUO; CC2 = ISD::SETGE; Opc = ISD::OR; break;
case ISD::SETULT: CC1 = ISD::SETUO; CC2 = ISD::SETLT; Opc = ISD::OR; break;
case ISD::SETULE: CC1 = ISD::SETUO; CC2 = ISD::SETLE; Opc = ISD::OR; break;
case ISD::SETUNE: CC1 = ISD::SETUO; CC2 = ISD::SETNE; Opc = ISD::OR; break;
case ISD::SETOEQ: CC1 = ISD::SETEQ; CC2 = ISD::SETO; Opc = ISD::AND; break;
case ISD::SETOGT: CC1 = ISD::SETGT; CC2 = ISD::SETO; Opc = ISD::AND; break;
case ISD::SETOGE: CC1 = ISD::SETGE; CC2 = ISD::SETO; Opc = ISD::AND; break;
case ISD::SETOLT: CC1 = ISD::SETLT; CC2 = ISD::SETO; Opc = ISD::AND; break;
case ISD::SETOLE: CC1 = ISD::SETLE; CC2 = ISD::SETO; Opc = ISD::AND; break;
case ISD::SETONE: CC1 = ISD::SETNE; CC2 = ISD::SETO; Opc = ISD::AND; break;
case ISD::SETUEQ: CC1 = ISD::SETEQ; CC2 = ISD::SETUO; Opc = ISD::OR; break;
case ISD::SETUGT: CC1 = ISD::SETGT; CC2 = ISD::SETUO; Opc = ISD::OR; break;
case ISD::SETUGE: CC1 = ISD::SETGE; CC2 = ISD::SETUO; Opc = ISD::OR; break;
case ISD::SETULT: CC1 = ISD::SETLT; CC2 = ISD::SETUO; Opc = ISD::OR; break;
case ISD::SETULE: CC1 = ISD::SETLE; CC2 = ISD::SETUO; Opc = ISD::OR; break;
case ISD::SETUNE: CC1 = ISD::SETNE; CC2 = ISD::SETUO; Opc = ISD::OR; break;
// FIXME: Implement more expansions.
}