diff options
Diffstat (limited to 'llvm/lib/CodeGen/GlobalISel')
| -rw-r--r-- | llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp index 773e51c6e34..ed1f0c9cb16 100644 --- a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp +++ b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp @@ -709,9 +709,12 @@ LegalizerHelper::widenScalar(MachineInstr &MI, unsigned TypeIdx, LLT WideTy) { return Legalized; } case TargetOpcode::G_LOAD: { - assert(alignTo(MRI.getType(MI.getOperand(0).getReg()).getSizeInBits(), 8) == - WideTy.getSizeInBits() && - "illegal to increase number of bytes loaded"); + // For some types like i24, we might try to widen to i32. To properly handle + // this we should be using a dedicated extending load, until then avoid + // trying to legalize. + if (alignTo(MRI.getType(MI.getOperand(0).getReg()).getSizeInBits(), 8) != + WideTy.getSizeInBits()) + return UnableToLegalize; unsigned DstExt = MRI.createGenericVirtualRegister(WideTy); MIRBuilder.buildLoad(DstExt, MI.getOperand(1).getReg(), |
