search for: 8976b

...never quite understood the "phi def" concept of LiveInterval. I understand that a phi def LiveRange originally came from a phi instruction but I'm not sure how to use the information after phi elimination. For example, I have this LiveInterval: [3472r,6688B:3)[6688B,8240B:2)[8240B,8976B:0)[8976B,12160B:1)[12160B,13744B:4)[13744B,14480B:5)[1448 0B,18048B:6)[18048B,19792B:7)[19792B,20192r:8) 0 at 8240B-phi 1 at 8976B-phi 2 at 6688B-phi 3 at 3472r 4 at 12160B -phi 5 at 13744B-phi 6 at 14480B-phi 7 at 18048B-phi 8 at 19792B-phi There is only one non-phi def. The (one) instruction d...

...LeaMI->getOperand(0).getReg() != BaseReg is there. It seems this is overly restrictive. For example, here is a case where it succeeds: 8944B BB#53: derived from LLVM BB %172 Live Ins: %R4 %R6 %D8 %Q5 %R9 %R7 %R8 %R10 %R5 %R11 Predecessors according to CFG: BB#52 8976B %R1<def> = t2LEApcrelJT <jt#2>, 2, pred:14, pred:%noreg 8992B %R1<def> = t2ADDrs %R1<kill>, %R10, 18, pred:14, pred:%noreg, opt:%noreg 9004B %LR<def> = t2MOVi 1, pred:14, pred:%noreg, opt:%noreg 9008B t2BR_JT %R1<kill>,...

...s overly > restrictive. For example, here is a case where it succeeds:**** > > ** ** > > 8944B BB#53: derived from LLVM BB %172**** > > Live Ins: %R4 %R6 %D8 %Q5 %R9 %R7 %R8 %R10 %R5 %R11**** > > Predecessors according to CFG: BB#52**** > > 8976B %R1<def> = t2LEApcrelJT <jt#2>, 2, pred:14, pred:%noreg*** > * > > 8992B %R1<def> = t2ADDrs %R1<kill>, %R10, 18, pred:14, > pred:%noreg, opt:%noreg**** > > 9004B %LR<def> = t2MOVi 1, pred:14, pred:%noreg, opt:%noreg**** &...

...ere. It seems this is overly restrictive. For example, here is a case where it succeeds: > > > > 8944B BB#53: derived from LLVM BB %172 > > Live Ins: %R4 %R6 %D8 %Q5 %R9 %R7 %R8 %R10 %R5 %R11 > > Predecessors according to CFG: BB#52 > > 8976B %R1<def> = t2LEApcrelJT <jt#2>, 2, pred:14, pred:%noreg > > 8992B %R1<def> = t2ADDrs %R1<kill>, %R10, 18, pred:14, pred:%noreg, opt:%noreg > > 9004B %LR<def> = t2MOVi 1, pred:14, pred:%noreg, opt:%noreg > > 9008B...