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4c3d3ecdf8
subreg_hireg of register pair Rp.
* lib/Target/Hexagon/HexagonPeephole.cpp(PeepholeDoubleRegsMap): New
DenseMap similar to PeepholeMap that additionally records subreg info
too.
(runOnMachineFunction): Record information in PeepholeDoubleRegsMap
and copy propagate the high sub-reg of Rp0 in Rp1 = lsr(Rp0, #32) to
the instruction Rx = COPY Rp1:logreg_subreg.
* test/CodeGen/Hexagon/remove_lsr.ll: New test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163214 91177308-0d34-0410-b5e6-96231b3b80d8
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| .. | ||
| args.ll | ||
| combine.ll | ||
| convertdptoint.ll | ||
| convertdptoll.ll | ||
| convertsptoint.ll | ||
| convertsptoll.ll | ||
| dadd.ll | ||
| dmul.ll | ||
| double.ll | ||
| doubleconvert-ieee-rnd-near.ll | ||
| dsub.ll | ||
| dualstore.ll | ||
| fadd.ll | ||
| fcmp.ll | ||
| float.ll | ||
| floatconvert-ieee-rnd-near.ll | ||
| fmul.ll | ||
| frame.ll | ||
| fsub.ll | ||
| fusedandshift.ll | ||
| lit.local.cfg | ||
| macint.ll | ||
| mpy.ll | ||
| newvaluejump2.ll | ||
| newvaluejump.ll | ||
| newvaluestore.ll | ||
| opt-fabs.ll | ||
| opt-fneg.ll | ||
| remove_lsr.ll | ||
| simpletailcall.ll | ||
| static.ll | ||
| struct_args_large.ll | ||
| struct_args.ll | ||
| vaddh.ll | ||