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...om LLVM BB %for.body, ADDRESS TAKEN > Predecessors according to CFG: BB#0 BB#1 > %vreg12<def> = PHI %vreg13, <BB#1>, %vreg11, <BB#0>;CTRRC8:%vreg12,%vreg13,%vreg11 > %vreg13<def> = COPY %vreg12<kill>; CTRRC8:%vreg13,%vreg12 > %vreg13<def> = BDNZ8 %vreg13, <BB#1>; CTRRC8:%vreg13 > B <BB#2> > Successors according to CFG: BB#2 BB#1 Phi-elim works by inserting copies in the PHI predecessors before the first terminator. That isn't possible here since the first terminator defines the value of %vreg13 we want to...

...g6 G8RC:%vreg5 %vreg7<def> = ADD4 %vreg6<kill>, %vreg3; GPRC:%vreg7,%vreg6,%vreg3 STW %vreg7<kill>, 0, %vreg5<kill>; mem:Volatile ST4[@a](tbaa=!"int") GPRC:%vreg7 G8RC:%vreg5 %vreg13<def> = COPY %vreg12<kill>; CTRRC8:%vreg13,%vreg12 %vreg13<def> = BDNZ8 %vreg13, <BB#1>; CTRRC8:%vreg13 B <BB#2> Successors according to CFG: BB#2 BB#1 but with default phi elimination I get: 0B BB#0: derived from LLVM BB %entry Live Ins: %X3 %vreg2<def> = COPY %X3<kill>; G8RC:%vreg2 %vreg4<def> = LI 2048; GP...

..., ADDRESS TAKEN > > Predecessors according to CFG: BB#0 BB#1 > > %vreg12<def> = PHI %vreg13, <BB#1>, %vreg11, > > <BB#0>;CTRRC8:%vreg12,%vreg13,%vreg11 %vreg13<def> = COPY > > %vreg12<kill>; CTRRC8:%vreg13,%vreg12 %vreg13<def> = BDNZ8 %vreg13, > > <BB#1>; CTRRC8:%vreg13 B <BB#2> > > Successors according to CFG: BB#2 BB#1 > > > Phi-elim works by inserting copies in the PHI predecessors before the > first terminator. That isn't possible here since the first terminator > defin...