1 ; RUN: opt -basicaa -loop-idiom < %s -S | FileCheck %s
2 target 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"
3 target triple = "x86_64-apple-darwin10.0.0"
6 ; CHECK-NOT: callq _memset
7 define i8* @memset(i8* %b, i32 %c, i64 %len) nounwind uwtable ssp {
9 %b.addr = alloca i8*, align 8
10 %c.addr = alloca i32, align 4
11 %len.addr = alloca i64, align 8
12 %p = alloca i8*, align 8
13 %i = alloca i32, align 4
14 store i8* %b, i8** %b.addr, align 8
15 store i32 %c, i32* %c.addr, align 4
16 store i64 %len, i64* %len.addr, align 8
17 %tmp = load i8** %b.addr, align 8
18 store i8* %tmp, i8** %p, align 8
19 store i32 0, i32* %i, align 4
22 for.cond: ; preds = %for.inc, %entry
23 %tmp2 = load i32* %i, align 4
24 %conv = sext i32 %tmp2 to i64
25 %tmp3 = load i64* %len.addr, align 8
26 %cmp = icmp ult i64 %conv, %tmp3
27 br i1 %cmp, label %for.body, label %for.end
29 for.body: ; preds = %for.cond
30 %tmp5 = load i32* %c.addr, align 4
31 %conv6 = trunc i32 %tmp5 to i8
32 %tmp7 = load i8** %p, align 8
33 %incdec.ptr = getelementptr inbounds i8* %tmp7, i32 1
34 store i8* %incdec.ptr, i8** %p, align 8
35 store i8 %conv6, i8* %tmp7
38 for.inc: ; preds = %for.body
39 %tmp8 = load i32* %i, align 4
40 %inc = add nsw i32 %tmp8, 1
41 store i32 %inc, i32* %i, align 4
44 for.end: ; preds = %for.cond
45 %tmp9 = load i8** %b.addr, align 8