1 ; RUN: opt < %s -loop-reduce -gvn -S | FileCheck %s
3 target datalayout = "e-i64:64-v16:16-v32:32-n16:32:64"
5 define void @_Z3fooPfll(float* nocapture readonly %input, i64 %n, i64 %s) {
6 ; CHECK-LABEL: @_Z3fooPfll(
8 %mul = shl nsw i64 %s, 2
9 ; CHECK: %mul = shl i64 %s, 2
10 tail call void @_Z3bazl(i64 %mul) #2
11 ; CHECK-NEXT: call void @_Z3bazl(i64 %mul)
12 %cmp.5 = icmp sgt i64 %n, 0
13 br i1 %cmp.5, label %for.body.preheader, label %for.cond.cleanup
15 for.body.preheader: ; preds = %entry
18 for.cond.cleanup.loopexit: ; preds = %for.body
19 br label %for.cond.cleanup
21 for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry
24 for.body: ; preds = %for.body.preheader, %for.body
25 %i.06 = phi i64 [ %add, %for.body ], [ 0, %for.body.preheader ]
26 %arrayidx = getelementptr inbounds float, float* %input, i64 %i.06
27 ; LoopStrengthReduce should reuse %mul as the stride.
28 ; CHECK: getelementptr i1, i1* {{[^,]+}}, i64 %mul
29 %0 = load float, float* %arrayidx, align 4
30 tail call void @_Z3barf(float %0) #2
31 %add = add nsw i64 %i.06, %s
32 %cmp = icmp slt i64 %add, %n
33 br i1 %cmp, label %for.body, label %for.cond.cleanup.loopexit
36 declare void @_Z3bazl(i64)
38 declare void @_Z3barf(float)