1; RUN: opt -loop-idiom < %s -S | FileCheck %s
2target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
3target triple = "x86_64-apple-darwin10.0.0"
4
5; CHECK-LABEL: @memset(
6; CHECK-NOT: llvm.memset
7define i8* @memset(i8* %b, i32 %c, i64 %len) nounwind uwtable ssp {
8entry:
9  %cmp1 = icmp ult i64 0, %len
10  br i1 %cmp1, label %for.body.lr.ph, label %for.end
11
12for.body.lr.ph:                                   ; preds = %entry
13  %conv6 = trunc i32 %c to i8
14  br label %for.body
15
16for.body:                                         ; preds = %for.body.lr.ph, %for.body
17  %indvar = phi i64 [ 0, %for.body.lr.ph ], [ %indvar.next, %for.body ]
18  %p.02 = getelementptr i8, i8* %b, i64 %indvar
19  store i8 %conv6, i8* %p.02, align 1
20  %indvar.next = add i64 %indvar, 1
21  %exitcond = icmp ne i64 %indvar.next, %len
22  br i1 %exitcond, label %for.body, label %for.cond.for.end_crit_edge
23
24for.cond.for.end_crit_edge:                       ; preds = %for.body
25  br label %for.end
26
27for.end:                                          ; preds = %for.cond.for.end_crit_edge, %entry
28  ret i8* %b
29}
30
31