maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

FNEG/FABS/UNDEF 

llvm-svn: 21029
This commit is contained in:
Andrew Lenharth 2005-04-02 19:11:07 +00:00
parent 7ad3697e1e
commit e7ae400bc8
1 changed files with 13 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
llvm/lib/Target/Alpha/AlphaISelPattern.cpp
View File

@ -537,15 +537,19 @@ unsigned ISel::SelectExprFP(SDOperand N, unsigned Result)
Node->dump();
assert(0 && "Node not handled!\n");
case ISD::UNDEF: {
BuildMI(BB, Alpha::IDEF, 0, Result);
return Result;
}
case ISD::FNEG:
if(ISD::FABS == N.getOperand(0).getOpcode())
{
Tmp1 = SelectExpr(N.getOperand(0).getOperand(0));
BuildMI(BB, Alpha::CPYSN, 2, Result).addReg(Tmp1).addReg(Tmp1);
BuildMI(BB, Alpha::CPYSN, 2, Result).addReg(Alpha::F31).addReg(Tmp1);
} else {
Tmp1 = SelectExpr(N.getOperand(0));
Opc = DestType == MVT::f64 ? Alpha::SUBT : Alpha::SUBS ;
BuildMI(BB, Opc, 2, Result).addReg(Alpha::F31).addReg(Tmp1);
BuildMI(BB, Alpha::CPYSN, 2, Result).addReg(Tmp1).addReg(Tmp1);
}
return Result;
@ -850,6 +854,12 @@ unsigned ISel::SelectExpr(SDOperand N) {
Node->dump();
assert(0 && "Node not handled!\n");
case ISD::UNDEF: {
BuildMI(BB, Alpha::IDEF, 0, Result);
return Result;
}
case ISD::DYNAMIC_STACKALLOC:
// Generate both result values.
if (Result != notIn)