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move this fp select into a pattern 

llvm-svn: 78464
This commit is contained in:
Andrew Lenharth 2009-08-08 12:49:07 +00:00
parent 7641cf8e4d
commit e372826523
2 changed files with 9 additions and 22 deletions
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19
llvm/lib/Target/Alpha/AlphaISelDAGToDAG.cpp
View File

@ -385,25 +385,6 @@ SDNode *AlphaDAGToDAGISel::Select(SDValue Op) {
}
break;
case ISD::SELECT:
if (N->getValueType(0).isFloatingPoint() &&
(N->getOperand(0).getOpcode() != ISD::SETCC ||
!N->getOperand(0).getOperand(1).getValueType().isFloatingPoint())) {
//This should be the condition not covered by the Patterns
//FIXME: Don't have SelectCode die, but rather return something testable
// so that things like this can be caught in fall though code
//move int to fp
bool isDouble = N->getValueType(0) == MVT::f64;
SDValue cond = N->getOperand(0);
SDValue TV = N->getOperand(1);
SDValue FV = N->getOperand(2);
SDNode* LD = CurDAG->getTargetNode(Alpha::ITOFT, dl, MVT::f64, cond);
return CurDAG->getTargetNode(isDouble?Alpha::FCMOVNET:Alpha::FCMOVNES,
dl, MVT::f64, FV, TV, SDValue(LD,0));
}
break;
case ISD::AND: {
ConstantSDNode* SC = NULL;
ConstantSDNode* MC = NULL;

12
llvm/lib/Target/Alpha/AlphaInstrInfo.td
View File

@ -702,7 +702,7 @@ def FCMOVNET : FPForm<0x17, 0x02B, "fcmovne $RCOND,$RTRUE,$RDEST", [], s_fcmov>;
//misc FP selects
//Select double
def : Pat<(select (seteq F8RC:$RA, F8RC:$RB), F8RC:$st, F8RC:$sf),
(FCMOVNET F8RC:$sf, F8RC:$st, (CMPTEQ F8RC:$RA, F8RC:$RB))>;
def : Pat<(select (setoeq F8RC:$RA, F8RC:$RB), F8RC:$st, F8RC:$sf),
@ -791,12 +791,14 @@ def : Pat<(select (setule F8RC:$RA, F8RC:$RB), F4RC:$st, F4RC:$sf),
let OutOperandList = (ops GPRC:$RC), InOperandList = (ops F4RC:$RA), Fb = 31 in
def FTOIS : FPForm<0x1C, 0x078, "ftois $RA,$RC",[], s_ftoi>; //Floating to integer move, S_floating
def FTOIS : FPForm<0x1C, 0x078, "ftois $RA,$RC",
[(set GPRC:$RC, (bitconvert F4RC:$RA))], s_ftoi>; //Floating to integer move, S_floating
let OutOperandList = (ops GPRC:$RC), InOperandList = (ops F8RC:$RA), Fb = 31 in
def FTOIT : FPForm<0x1C, 0x070, "ftoit $RA,$RC",
[(set GPRC:$RC, (bitconvert F8RC:$RA))], s_ftoi>; //Floating to integer move
let OutOperandList = (ops F4RC:$RC), InOperandList = (ops GPRC:$RA), Fb = 31 in
def ITOFS : FPForm<0x14, 0x004, "itofs $RA,$RC",[], s_itof>; //Integer to floating move, S_floating
def ITOFS : FPForm<0x14, 0x004, "itofs $RA,$RC",
[(set F4RC:$RC, (bitconvert GPRC:$RA))], s_itof>; //Integer to floating move, S_floating
let OutOperandList = (ops F8RC:$RC), InOperandList = (ops GPRC:$RA), Fb = 31 in
def ITOFT : FPForm<0x14, 0x024, "itoft $RA,$RC",
[(set F8RC:$RC, (bitconvert GPRC:$RA))], s_itof>; //Integer to floating move
@ -818,6 +820,10 @@ let OutOperandList = (ops F4RC:$RC), InOperandList = (ops F8RC:$RB), Fa = 31 in
def CVTTS : FPForm<0x16, 0x7AC, "cvtts/sui $RB,$RC",
[(set F4RC:$RC, (fround F8RC:$RB))], s_fadd>;
def : Pat<(select GPRC:$RC, F8RC:$st, F8RC:$sf),
(f64 (FCMOVEQT F8RC:$st, F8RC:$sf, (ITOFT GPRC:$RC)))>;
def : Pat<(select GPRC:$RC, F4RC:$st, F4RC:$sf),
(f32 (FCMOVEQS F4RC:$st, F4RC:$sf, (ITOFT GPRC:$RC)))>;
/////////////////////////////////////////////////////////
//Branching