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      1 ; RUN: llc -mcpu=ppc64 < %s | FileCheck %s
      2 target datalayout = "E-m:e-i64:64-n32:64"
      3 target triple = "powerpc64-unknown-linux-gnu"
      4 
      5 ; Function Attrs: noreturn nounwind
      6 define signext i32 @_Z1fRPc(i8** nocapture dereferenceable(8) %p) #0 {
      7 entry:
      8   %.pre = load i8*, i8** %p, align 8
      9   br label %loop
     10 
     11 loop:                                             ; preds = %loop.backedge, %entry
     12   %0 = phi i8* [ %.pre, %entry ], [ %.be, %loop.backedge ]
     13   %1 = load i8, i8* %0, align 1
     14   %tobool = icmp eq i8 %1, 0
     15   %incdec.ptr = getelementptr inbounds i8, i8* %0, i64 1
     16   store i8* %incdec.ptr, i8** %p, align 8
     17   %2 = load i8, i8* %incdec.ptr, align 1
     18   %tobool2 = icmp ne i8 %2, 0
     19   %or.cond = and i1 %tobool, %tobool2
     20   br i1 %or.cond, label %if.then3, label %loop.backedge
     21 
     22 if.then3:                                         ; preds = %loop
     23   %incdec.ptr4 = getelementptr inbounds i8, i8* %0, i64 2
     24   store i8* %incdec.ptr4, i8** %p, align 8
     25   br label %loop.backedge
     26 
     27 loop.backedge:                                    ; preds = %if.then3, %loop
     28   %.be = phi i8* [ %incdec.ptr4, %if.then3 ], [ %incdec.ptr, %loop ]
     29   br label %loop
     30 
     31 ; CHECK-LABEL: @_Z1fRPc
     32 ; CHECK-NOT: rlwinm {{[0-9]+}}, {{[0-9]+}}, 0, 24, 31
     33 ; CHECK-NOT: clrlwi {{[0-9]+}}, {{[0-9]+}}, 24
     34 }
     35 
     36 attributes #0 = { noreturn nounwind }
     37 
     38