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(loop-unroll-full)' -unroll-max-iteration-count-to-analyze=100 -unroll-threshold=10 -unroll-max-percent-threshold-boost=200 | FileCheck %s
3target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
4
5define i64 @propagate_loop_phis() {
6; CHECK-LABEL: @propagate_loop_phis(
7; CHECK-NOT: br i1
8; CHECK: ret i64 3
9entry:
10  br label %loop
11
12loop:
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
21loop.end:
22  %x.lcssa = phi i64 [ %x2, %loop ]
23  ret i64 %x.lcssa
24}
25