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Fix bug codegen'ing FP constant vectors with integer splats. Make sure the 

created intrinsics have the right integer types.  This fixes
PowerPC/2006-11-29-AltivecFPSplat.ll

llvm-svn: 32024
This commit is contained in:
Chris Lattner 2006-11-29 19:58:49 +00:00
parent c386b40714
commit 2f648fc55d
1 changed files with 22 additions and 14 deletions
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36
llvm/lib/Target/PowerPC/PPCISelLowering.cpp
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@ -1973,6 +1973,7 @@ static SDOperand BuildSplatI(int Val, unsigned SplatSize, MVT::ValueType VT,
Ops.assign(MVT::getVectorNumElements(CanonicalVT), Elt);
SDOperand Res = DAG.getNode(ISD::BUILD_VECTOR, CanonicalVT,
&Ops[0], Ops.size());
if (VT == MVT::Other) return Res;
return DAG.getNode(ISD::BIT_CONVERT, VT, Res);
}
@ -2086,6 +2087,7 @@ static SDOperand LowerBUILD_VECTOR(SDOperand Op, SelectionDAG &DAG) {
-1, 1, -2, 2, -3, 3, -4, 4, -5, 5, -6, 6, -7, 7,
-8, 8, -9, 9, -10, 10, -11, 11, -12, 12, -13, 13, 14, -14, 15, -15, -16
};
for (unsigned idx = 0; idx < sizeof(SplatCsts)/sizeof(SplatCsts[0]); ++idx){
// Indirect through the SplatCsts array so that we favor 'vsplti -1' for
// cases which are ambiguous (e.g. formation of 0x8000_0000). 'vsplti -1'
@ -2097,43 +2099,47 @@ static SDOperand LowerBUILD_VECTOR(SDOperand Op, SelectionDAG &DAG) {
// vsplti + shl self.
if (SextVal == (i << (int)TypeShiftAmt)) {
Op = BuildSplatI(i, SplatSize, Op.getValueType(), DAG);
SDOperand Res = BuildSplatI(i, SplatSize, MVT::Other, DAG);
static const unsigned IIDs[] = { // Intrinsic to use for each size.
Intrinsic::ppc_altivec_vslb, Intrinsic::ppc_altivec_vslh, 0,
Intrinsic::ppc_altivec_vslw
};
return BuildIntrinsicOp(IIDs[SplatSize-1], Op, Op, DAG);
Res = BuildIntrinsicOp(IIDs[SplatSize-1], Res, Res, DAG);
return DAG.getNode(ISD::BIT_CONVERT, Op.getValueType(), Res);
}
// vsplti + srl self.
if (SextVal == (int)((unsigned)i >> TypeShiftAmt)) {
Op = BuildSplatI(i, SplatSize, Op.getValueType(), DAG);
SDOperand Res = BuildSplatI(i, SplatSize, MVT::Other, DAG);
static const unsigned IIDs[] = { // Intrinsic to use for each size.
Intrinsic::ppc_altivec_vsrb, Intrinsic::ppc_altivec_vsrh, 0,
Intrinsic::ppc_altivec_vsrw
};
return BuildIntrinsicOp(IIDs[SplatSize-1], Op, Op, DAG);
Res = BuildIntrinsicOp(IIDs[SplatSize-1], Res, Res, DAG);
return DAG.getNode(ISD::BIT_CONVERT, Op.getValueType(), Res);
}
// vsplti + sra self.
if (SextVal == (int)((unsigned)i >> TypeShiftAmt)) {
Op = BuildSplatI(i, SplatSize, Op.getValueType(), DAG);
SDOperand Res = BuildSplatI(i, SplatSize, MVT::Other, DAG);
static const unsigned IIDs[] = { // Intrinsic to use for each size.
Intrinsic::ppc_altivec_vsrab, Intrinsic::ppc_altivec_vsrah, 0,
Intrinsic::ppc_altivec_vsraw
};
return BuildIntrinsicOp(IIDs[SplatSize-1], Op, Op, DAG);
Res = BuildIntrinsicOp(IIDs[SplatSize-1], Res, Res, DAG);
return DAG.getNode(ISD::BIT_CONVERT, Op.getValueType(), Res);
}
// vsplti + rol self.
if (SextVal == (int)(((unsigned)i << TypeShiftAmt) |
((unsigned)i >> (SplatBitSize-TypeShiftAmt)))) {
Op = BuildSplatI(i, SplatSize, Op.getValueType(), DAG);
SDOperand Res = BuildSplatI(i, SplatSize, MVT::Other, DAG);
static const unsigned IIDs[] = { // Intrinsic to use for each size.
Intrinsic::ppc_altivec_vrlb, Intrinsic::ppc_altivec_vrlh, 0,
Intrinsic::ppc_altivec_vrlw
};
return BuildIntrinsicOp(IIDs[SplatSize-1], Op, Op, DAG);
Res = BuildIntrinsicOp(IIDs[SplatSize-1], Res, Res, DAG);
return DAG.getNode(ISD::BIT_CONVERT, Op.getValueType(), Res);
}
// t = vsplti c, result = vsldoi t, t, 1
@ -2157,15 +2163,17 @@ static SDOperand LowerBUILD_VECTOR(SDOperand Op, SelectionDAG &DAG) {
// Odd, in range [17,31]: (vsplti C)-(vsplti -16).
if (SextVal >= 0 && SextVal <= 31) {
SDOperand LHS = BuildSplatI(SextVal-16, SplatSize, Op.getValueType(),DAG);
SDOperand RHS = BuildSplatI(-16, SplatSize, Op.getValueType(), DAG);
return DAG.getNode(ISD::SUB, Op.getValueType(), LHS, RHS);
SDOperand LHS = BuildSplatI(SextVal-16, SplatSize, MVT::Other, DAG);
SDOperand RHS = BuildSplatI(-16, SplatSize, MVT::Other, DAG);
LHS = DAG.getNode(ISD::SUB, Op.getValueType(), LHS, RHS);
return DAG.getNode(ISD::BIT_CONVERT, Op.getValueType(), LHS);
}
// Odd, in range [-31,-17]: (vsplti C)+(vsplti -16).
if (SextVal >= -31 && SextVal <= 0) {
SDOperand LHS = BuildSplatI(SextVal+16, SplatSize, Op.getValueType(),DAG);
SDOperand RHS = BuildSplatI(-16, SplatSize, Op.getValueType(), DAG);
return DAG.getNode(ISD::ADD, Op.getValueType(), LHS, RHS);
SDOperand LHS = BuildSplatI(SextVal+16, SplatSize, MVT::Other, DAG);
SDOperand RHS = BuildSplatI(-16, SplatSize, MVT::Other, DAG);
LHS = DAG.getNode(ISD::ADD, Op.getValueType(), LHS, RHS);
return DAG.getNode(ISD::BIT_CONVERT, Op.getValueType(), LHS);
}
}