diff options
Diffstat (limited to 'lib/CodeGen/SelectionDAG/FastISel.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/FastISel.cpp | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/lib/CodeGen/SelectionDAG/FastISel.cpp b/lib/CodeGen/SelectionDAG/FastISel.cpp index 992b8ed..c109a09 100644 --- a/lib/CodeGen/SelectionDAG/FastISel.cpp +++ b/lib/CodeGen/SelectionDAG/FastISel.cpp @@ -35,7 +35,8 @@ unsigned FastISel::getRegForValue(Value *V) { MVT::SimpleValueType VT = TLI.getValueType(V->getType()).getSimpleVT(); if (ConstantInt *CI = dyn_cast<ConstantInt>(V)) { if (CI->getValue().getActiveBits() > 64) - return 0; + return TargetMaterializeConstant(CI, + MBB->getParent()->getConstantPool()); // Don't cache constant materializations. To do so would require // tracking what uses they dominate. Reg = FastEmit_i(VT, VT, ISD::Constant, CI->getZExtValue()); @@ -52,16 +53,19 @@ unsigned FastISel::getRegForValue(Value *V) { uint32_t IntBitWidth = IntVT.getSizeInBits(); if (Flt.convertToInteger(x, IntBitWidth, /*isSigned=*/true, APFloat::rmTowardZero) != APFloat::opOK) - return 0; + return TargetMaterializeConstant(CF, + MBB->getParent()->getConstantPool()); APInt IntVal(IntBitWidth, 2, x); unsigned IntegerReg = FastEmit_i(IntVT.getSimpleVT(), IntVT.getSimpleVT(), ISD::Constant, IntVal.getZExtValue()); if (IntegerReg == 0) - return 0; + return TargetMaterializeConstant(CF, + MBB->getParent()->getConstantPool()); Reg = FastEmit_r(IntVT.getSimpleVT(), VT, ISD::SINT_TO_FP, IntegerReg); if (Reg == 0) - return 0; + return TargetMaterializeConstant(CF, + MBB->getParent()->getConstantPool());; } } else if (ConstantExpr *CE = dyn_cast<ConstantExpr>(V)) { if (!SelectOperator(CE, CE->getOpcode())) return 0; @@ -73,6 +77,10 @@ unsigned FastISel::getRegForValue(Value *V) { return 0; } + if (!Reg && isa<Constant>(V)) + return TargetMaterializeConstant(cast<Constant>(V), + MBB->getParent()->getConstantPool()); + LocalValueMap[V] = Reg; return Reg; } |