1 ; RUN: opt < %s -S -loop-unroll -unroll-max-iteration-count-to-analyze=100 -unroll-threshold=10 -unroll-max-percent-threshold-boost=200 | FileCheck %s 2 ; RUN: opt < %s -S -passes='require<opt-remark-emit>,loop(unroll-full)' -unroll-max-iteration-count-to-analyze=100 -unroll-threshold=10 -unroll-max-percent-threshold-boost=200 | FileCheck %s 3 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 4 5 define i64 @propagate_loop_phis() { 6 ; CHECK-LABEL: @propagate_loop_phis( 7 ; CHECK-NOT: br i1 8 ; CHECK: ret i64 3 9 entry: 10 br label %loop 11 12 loop: 13 %iv = phi i64 [ 0, %entry ], [ %inc, %loop ] 14 %x0 = phi i64 [ 0, %entry ], [ %x2, %loop ] 15 %x1 = or i64 %x0, 1 16 %x2 = or i64 %x1, 2 17 %inc = add nuw nsw i64 %iv, 1 18 %cond = icmp sge i64 %inc, 10 19 br i1 %cond, label %loop.end, label %loop 20 21 loop.end: 22 %x.lcssa = phi i64 [ %x2, %loop ] 23 ret i64 %x.lcssa 24 } 25
