In various places throughout the code generator, there were special
checks to avoid performing compile-time arithmetic on PPCDoubleDouble.
Now that APFloat supports arithmetic on PPCDoubleDouble, those checks
are no longer needed, and we can treat the type like any other.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166958 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index 8cc35bb..23821e6 100644
--- a/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -393,10 +393,6 @@
const TargetLowering &TLI,
const TargetOptions *Options,
unsigned Depth = 0) {
- // No compile time optimizations on this type.
- if (Op.getValueType() == MVT::ppcf128)
- return 0;
-
// fneg is removable even if it has multiple uses.
if (Op.getOpcode() == ISD::FNEG) return 2;
@@ -5705,7 +5701,7 @@
}
// fold (fadd c1, c2) -> c1 + c2
- if (N0CFP && N1CFP && VT != MVT::ppcf128)
+ if (N0CFP && N1CFP)
return DAG.getNode(ISD::FADD, N->getDebugLoc(), VT, N0, N1);
// canonicalize constant to RHS
if (N0CFP && !N1CFP)
@@ -5892,7 +5888,7 @@
}
// fold (fsub c1, c2) -> c1-c2
- if (N0CFP && N1CFP && VT != MVT::ppcf128)
+ if (N0CFP && N1CFP)
return DAG.getNode(ISD::FSUB, N->getDebugLoc(), VT, N0, N1);
// fold (fsub A, 0) -> A
if (DAG.getTarget().Options.UnsafeFPMath &&
@@ -5984,7 +5980,7 @@
}
// fold (fmul c1, c2) -> c1*c2
- if (N0CFP && N1CFP && VT != MVT::ppcf128)
+ if (N0CFP && N1CFP)
return DAG.getNode(ISD::FMUL, N->getDebugLoc(), VT, N0, N1);
// canonicalize constant to RHS
if (N0CFP && !N1CFP)
@@ -6121,11 +6117,11 @@
}
// fold (fdiv c1, c2) -> c1/c2
- if (N0CFP && N1CFP && VT != MVT::ppcf128)
+ if (N0CFP && N1CFP)
return DAG.getNode(ISD::FDIV, N->getDebugLoc(), VT, N0, N1);
// fold (fdiv X, c2) -> fmul X, 1/c2 if losing precision is acceptable.
- if (N1CFP && VT != MVT::ppcf128 && DAG.getTarget().Options.UnsafeFPMath) {
+ if (N1CFP && DAG.getTarget().Options.UnsafeFPMath) {
// Compute the reciprocal 1.0 / c2.
APFloat N1APF = N1CFP->getValueAPF();
APFloat Recip(N1APF.getSemantics(), 1); // 1.0
@@ -6168,7 +6164,7 @@
EVT VT = N->getValueType(0);
// fold (frem c1, c2) -> fmod(c1,c2)
- if (N0CFP && N1CFP && VT != MVT::ppcf128)
+ if (N0CFP && N1CFP)
return DAG.getNode(ISD::FREM, N->getDebugLoc(), VT, N0, N1);
return SDValue();
@@ -6181,7 +6177,7 @@
ConstantFPSDNode *N1CFP = dyn_cast<ConstantFPSDNode>(N1);
EVT VT = N->getValueType(0);
- if (N0CFP && N1CFP && VT != MVT::ppcf128) // Constant fold
+ if (N0CFP && N1CFP) // Constant fold
return DAG.getNode(ISD::FCOPYSIGN, N->getDebugLoc(), VT, N0, N1);
if (N1CFP) {
@@ -6231,7 +6227,7 @@
EVT OpVT = N0.getValueType();
// fold (sint_to_fp c1) -> c1fp
- if (N0C && OpVT != MVT::ppcf128 &&
+ if (N0C &&
// ...but only if the target supports immediate floating-point values
(!LegalOperations ||
TLI.isOperationLegalOrCustom(llvm::ISD::ConstantFP, VT)))
@@ -6288,7 +6284,7 @@
EVT OpVT = N0.getValueType();
// fold (uint_to_fp c1) -> c1fp
- if (N0C && OpVT != MVT::ppcf128 &&
+ if (N0C &&
// ...but only if the target supports immediate floating-point values
(!LegalOperations ||
TLI.isOperationLegalOrCustom(llvm::ISD::ConstantFP, VT)))
@@ -6343,7 +6339,7 @@
EVT VT = N->getValueType(0);
// fold (fp_to_uint c1fp) -> c1
- if (N0CFP && VT != MVT::ppcf128)
+ if (N0CFP)
return DAG.getNode(ISD::FP_TO_UINT, N->getDebugLoc(), VT, N0);
return SDValue();
@@ -6356,7 +6352,7 @@
EVT VT = N->getValueType(0);
// fold (fp_round c1fp) -> c1fp
- if (N0CFP && N0.getValueType() != MVT::ppcf128)
+ if (N0CFP)
return DAG.getNode(ISD::FP_ROUND, N->getDebugLoc(), VT, N0, N1);
// fold (fp_round (fp_extend x)) -> x
@@ -6410,7 +6406,7 @@
return SDValue();
// fold (fp_extend c1fp) -> c1fp
- if (N0CFP && VT != MVT::ppcf128)
+ if (N0CFP)
return DAG.getNode(ISD::FP_EXTEND, N->getDebugLoc(), VT, N0);
// Turn fp_extend(fp_round(X, 1)) -> x since the fp_round doesn't affect the
@@ -6497,7 +6493,7 @@
EVT VT = N->getValueType(0);
// fold (fceil c1) -> fceil(c1)
- if (N0CFP && VT != MVT::ppcf128)
+ if (N0CFP)
return DAG.getNode(ISD::FCEIL, N->getDebugLoc(), VT, N0);
return SDValue();
@@ -6509,7 +6505,7 @@
EVT VT = N->getValueType(0);
// fold (ftrunc c1) -> ftrunc(c1)
- if (N0CFP && VT != MVT::ppcf128)
+ if (N0CFP)
return DAG.getNode(ISD::FTRUNC, N->getDebugLoc(), VT, N0);
return SDValue();
@@ -6521,7 +6517,7 @@
EVT VT = N->getValueType(0);
// fold (ffloor c1) -> ffloor(c1)
- if (N0CFP && VT != MVT::ppcf128)
+ if (N0CFP)
return DAG.getNode(ISD::FFLOOR, N->getDebugLoc(), VT, N0);
return SDValue();
@@ -6538,7 +6534,7 @@
}
// fold (fabs c1) -> fabs(c1)
- if (N0CFP && VT != MVT::ppcf128)
+ if (N0CFP)
return DAG.getNode(ISD::FABS, N->getDebugLoc(), VT, N0);
// fold (fabs (fabs x)) -> (fabs x)
if (N0.getOpcode() == ISD::FABS)