diff options
Diffstat (limited to 'lib/Target/SystemZ/SystemZISelDAGToDAG.cpp')
| -rw-r--r-- | lib/Target/SystemZ/SystemZISelDAGToDAG.cpp | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/lib/Target/SystemZ/SystemZISelDAGToDAG.cpp b/lib/Target/SystemZ/SystemZISelDAGToDAG.cpp index 0eb3d6593fe6..75fd37f01a19 100644 --- a/lib/Target/SystemZ/SystemZISelDAGToDAG.cpp +++ b/lib/Target/SystemZ/SystemZISelDAGToDAG.cpp @@ -96,7 +96,10 @@ struct SystemZAddressingMode { // Return a mask with Count low bits set. static uint64_t allOnes(unsigned int Count) { - return Count == 0 ? 0 : (uint64_t(1) << (Count - 1) << 1) - 1; + assert(Count <= 64); + if (Count > 63) + return UINT64_MAX; + return (uint64_t(1) << Count) - 1; } // Represents operands 2 to 5 of the ROTATE AND ... SELECTED BITS operation @@ -903,6 +906,8 @@ SDValue SystemZDAGToDAGISel::convertTo(SDLoc DL, EVT VT, SDValue N) const { SDNode *SystemZDAGToDAGISel::tryRISBGZero(SDNode *N) { SDLoc DL(N); EVT VT = N->getValueType(0); + if (!VT.isInteger() || VT.getSizeInBits() > 64) + return nullptr; RxSBGOperands RISBG(SystemZ::RISBG, SDValue(N, 0)); unsigned Count = 0; while (expandRxSBG(RISBG)) @@ -958,6 +963,10 @@ SDNode *SystemZDAGToDAGISel::tryRISBGZero(SDNode *N) { } SDNode *SystemZDAGToDAGISel::tryRxSBG(SDNode *N, unsigned Opcode) { + SDLoc DL(N); + EVT VT = N->getValueType(0); + if (!VT.isInteger() || VT.getSizeInBits() > 64) + return nullptr; // Try treating each operand of N as the second operand of the RxSBG // and see which goes deepest. RxSBGOperands RxSBG[] = { @@ -993,8 +1002,6 @@ SDNode *SystemZDAGToDAGISel::tryRxSBG(SDNode *N, unsigned Opcode) { Opcode = SystemZ::RISBGN; } - SDLoc DL(N); - EVT VT = N->getValueType(0); SDValue Ops[5] = { convertTo(DL, MVT::i64, Op0), convertTo(DL, MVT::i64, RxSBG[I].Input), |