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| author | Eric Christopher <echristo@apple.com> | 2011-06-17 20:41:29 +0000 |
|---|---|---|
| committer | Eric Christopher <echristo@apple.com> | 2011-06-17 20:41:29 +0000 |
| commit | 362fee90b9a1d64ac091755466caf6a94ade22eb (patch) | |
| tree | 447311a20ba09a9f5ffb810b8c3f902e98be4df6 /lib/CodeGen/SelectionDAG/TargetLowering.cpp | |
| parent | 916a94b870042772568fca7995cf45aef7a6e333 (diff) | |
| download | llvm-362fee90b9a1d64ac091755466caf6a94ade22eb.tar.gz llvm-362fee90b9a1d64ac091755466caf6a94ade22eb.tar.bz2 llvm-362fee90b9a1d64ac091755466caf6a94ade22eb.tar.xz | |
Lower multiply with overflow checking to __mulo<mode>
calls if we haven't been able to lower them any
other way.
Fixes rdar://9090077 and rdar://9210061
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133288 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/TargetLowering.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/TargetLowering.cpp | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/lib/CodeGen/SelectionDAG/TargetLowering.cpp b/lib/CodeGen/SelectionDAG/TargetLowering.cpp index efbfaa4533..474dd7a9fc 100644 --- a/lib/CodeGen/SelectionDAG/TargetLowering.cpp +++ b/lib/CodeGen/SelectionDAG/TargetLowering.cpp @@ -81,6 +81,9 @@ static void InitLibcallNames(const char **Names) { Names[RTLIB::MUL_I32] = "__mulsi3"; Names[RTLIB::MUL_I64] = "__muldi3"; Names[RTLIB::MUL_I128] = "__multi3"; + Names[RTLIB::MULO_I32] = "__mulosi4"; + Names[RTLIB::MULO_I64] = "__mulodi4"; + Names[RTLIB::MULO_I128] = "__muloti4"; Names[RTLIB::SDIV_I8] = "__divqi3"; Names[RTLIB::SDIV_I16] = "__divhi3"; Names[RTLIB::SDIV_I32] = "__divsi3"; @@ -1914,7 +1917,7 @@ TargetLowering::SimplifySetCC(EVT VT, SDValue N0, SDValue N1, // comparisons. if (isa<ConstantSDNode>(N0.getNode())) return DAG.getSetCC(dl, VT, N1, N0, ISD::getSetCCSwappedOperands(Cond)); - + if (ConstantSDNode *N1C = dyn_cast<ConstantSDNode>(N1.getNode())) { const APInt &C1 = N1C->getAPIntValue(); @@ -2673,9 +2676,9 @@ void TargetLowering::LowerAsmOperandForConstraint(SDValue Op, std::string &Constraint, std::vector<SDValue> &Ops, SelectionDAG &DAG) const { - + if (Constraint.length() > 1) return; - + char ConstraintLetter = Constraint[0]; switch (ConstraintLetter) { default: break; @@ -2865,7 +2868,7 @@ TargetLowering::AsmOperandInfoVector TargetLowering::ParseConstraints( report_fatal_error("Indirect operand for inline asm not a pointer!"); OpTy = PtrTy->getElementType(); } - + // Look for vector wrapped in a struct. e.g. { <16 x i8> }. if (const StructType *STy = dyn_cast<StructType>(OpTy)) if (STy->getNumElements() == 1) |