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acfa5a203c
Most constant BUILD_VECTOR's are matched using ComplexPatterns which cover bitcasted as well as normal vectors. However, it doesn't seem to be possible to match ldi.[bhwd] in a type-agnostic manner (e.g. to support the widest range of immediates, it should be possible to use ldi.b to load v2i64) using TableGen so ldi.[bhwd] is matched using custom code in MipsSEISelDAGToDAG.cpp This made the majority of the constant splat BUILD_VECTOR lowering redundant. The only transformation remaining for constant splats is when an (up-to) 32-bit constant splat is possible but the value does not fit into a 10-bit signed integer. In this case, the BUILD_VECTOR is transformed into a bitcasted BUILD_VECTOR so that fill.[bhw] can be used to splat the vector from a GPR32 register (which is initialized using the usual lui/addui sequence). There are no additional tests since this is a re-implementation of previous functionality. The change is intended to make it easier to implement some of the upcoming instruction selection patches since they can rely on existing support for BUILD_VECTOR's in the DAGCombiner. compare_float.ll changed slightly because a BITCAST is no longer introduced during legalization. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191299 91177308-0d34-0410-b5e6-96231b3b80d8 |
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| .. | ||
| 2r_vector_scalar.ll | ||
| 2r.ll | ||
| 2rf_exup.ll | ||
| 2rf_float_int.ll | ||
| 2rf_fq.ll | ||
| 2rf_int_float.ll | ||
| 2rf_tq.ll | ||
| 2rf.ll | ||
| 3r_4r_widen.ll | ||
| 3r_4r.ll | ||
| 3r_ld_st.ll | ||
| 3r_splat.ll | ||
| 3r-a.ll | ||
| 3r-b.ll | ||
| 3r-c.ll | ||
| 3r-d.ll | ||
| 3r-i.ll | ||
| 3r-m.ll | ||
| 3r-p.ll | ||
| 3r-s.ll | ||
| 3r-v.ll | ||
| 3rf_4rf_q.ll | ||
| 3rf_4rf.ll | ||
| 3rf_exdo.ll | ||
| 3rf_float_int.ll | ||
| 3rf_int_float.ll | ||
| 3rf_q.ll | ||
| 3rf.ll | ||
| arithmetic_float.ll | ||
| arithmetic.ll | ||
| basic_operations_float.ll | ||
| basic_operations.ll | ||
| bit.ll | ||
| bitcast.ll | ||
| bitwise.ll | ||
| compare_float.ll | ||
| compare.ll | ||
| elm_copy.ll | ||
| elm_cxcmsa.ll | ||
| elm_insv.ll | ||
| elm_move.ll | ||
| elm_shift_slide.ll | ||
| i5_ld_st.ll | ||
| i5-a.ll | ||
| i5-b.ll | ||
| i5-c.ll | ||
| i5-m.ll | ||
| i5-s.ll | ||
| i8.ll | ||
| i10.ll | ||
| spill.ll | ||
| vec.ll | ||
| vecs10.ll | ||