diff options
Diffstat (limited to 'lib/Target/PowerPC/PPCTargetTransformInfo.cpp')
| -rw-r--r-- | lib/Target/PowerPC/PPCTargetTransformInfo.cpp | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/lib/Target/PowerPC/PPCTargetTransformInfo.cpp b/lib/Target/PowerPC/PPCTargetTransformInfo.cpp index 984519c079..2491a9e539 100644 --- a/lib/Target/PowerPC/PPCTargetTransformInfo.cpp +++ b/lib/Target/PowerPC/PPCTargetTransformInfo.cpp @@ -139,7 +139,7 @@ void PPCTTI::getUnrollingPreferences(Loop *L, UnrollingPreferences &UP) const { unsigned PPCTTI::getNumberOfRegisters(bool Vector) const { if (Vector && !ST->hasAltivec()) return 0; - return 32; + return ST->hasVSX() ? 64 : 32; } unsigned PPCTTI::getRegisterBitWidth(bool Vector) const { @@ -208,6 +208,14 @@ unsigned PPCTTI::getVectorInstrCost(unsigned Opcode, Type *Val, int ISD = TLI->InstructionOpcodeToISD(Opcode); assert(ISD && "Invalid opcode"); + if (ST->hasVSX() && Val->getScalarType()->isDoubleTy()) { + // Double-precision scalars are already located in index #0. + if (Index == 0) + return 0; + + return TargetTransformInfo::getVectorInstrCost(Opcode, Val, Index); + } + // Estimated cost of a load-hit-store delay. This was obtained // experimentally as a minimum needed to prevent unprofitable // vectorization for the paq8p benchmark. It may need to be |