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to have a different type to the vector element type. This should be fairly harmless because in the past guys like this were being built all over the place (and were cleaned up when I added this check). The reason for relaxing this check is that it helps LegalizeTypes legalize vector shuffles: the mask is a BUILD_VECTOR that it is *not always possible* to legalize while keeping it a BUILD_VECTOR (vector_shuffle requires the mask to be a BUILD_VECTOR, as opposed to a vector with the right vector type). With this check it is even harder to legalize the mask - turning the check off means that LegalizeTypes manages to legalize almost all vector shuffles encountered in practice. The correct solution is to change vector_shuffle to be a variadic node with the mask built into it as operands. While waiting for that change, this hack stops the problem with vector_shuffle from blocking the turning on of LegalizeTypes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57965 91177308-0d34-0410-b5e6-96231b3b80d8 |
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|---|---|---|
| .. | ||
| CallingConvLower.cpp | ||
| CMakeLists.txt | ||
| DAGCombiner.cpp | ||
| FastISel.cpp | ||
| LegalizeDAG.cpp | ||
| LegalizeFloatTypes.cpp | ||
| LegalizeIntegerTypes.cpp | ||
| LegalizeTypes.cpp | ||
| LegalizeTypes.h | ||
| LegalizeTypesGeneric.cpp | ||
| LegalizeVectorTypes.cpp | ||
| Makefile | ||
| ScheduleDAG.cpp | ||
| ScheduleDAGEmit.cpp | ||
| ScheduleDAGFast.cpp | ||
| ScheduleDAGList.cpp | ||
| ScheduleDAGRRList.cpp | ||
| SelectionDAG.cpp | ||
| SelectionDAGBuild.cpp | ||
| SelectionDAGBuild.h | ||
| SelectionDAGISel.cpp | ||
| SelectionDAGPrinter.cpp | ||
| TargetLowering.cpp | ||