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; RUN: opt -basicaa -loop-idiom < %s -S | FileCheck %s
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"
target triple = "x86_64-apple-darwin10.0.0"
; CHECK: @memset
; CHECK-NOT: callq _memset
define i8* @memset(i8* %b, i32 %c, i64 %len) nounwind uwtable ssp {
entry:
%b.addr = alloca i8*, align 8
%c.addr = alloca i32, align 4
%len.addr = alloca i64, align 8
%p = alloca i8*, align 8
%i = alloca i32, align 4
store i8* %b, i8** %b.addr, align 8
store i32 %c, i32* %c.addr, align 4
store i64 %len, i64* %len.addr, align 8
%tmp = load i8** %b.addr, align 8
store i8* %tmp, i8** %p, align 8
store i32 0, i32* %i, align 4
br label %for.cond
for.cond: ; preds = %for.inc, %entry
%tmp2 = load i32* %i, align 4
%conv = sext i32 %tmp2 to i64
%tmp3 = load i64* %len.addr, align 8
%cmp = icmp ult i64 %conv, %tmp3
br i1 %cmp, label %for.body, label %for.end
for.body: ; preds = %for.cond
%tmp5 = load i32* %c.addr, align 4
%conv6 = trunc i32 %tmp5 to i8
%tmp7 = load i8** %p, align 8
%incdec.ptr = getelementptr inbounds i8* %tmp7, i32 1
store i8* %incdec.ptr, i8** %p, align 8
store i8 %conv6, i8* %tmp7
br label %for.inc
for.inc: ; preds = %for.body
%tmp8 = load i32* %i, align 4
%inc = add nsw i32 %tmp8, 1
store i32 %inc, i32* %i, align 4
br label %for.cond
for.end: ; preds = %for.cond
%tmp9 = load i8** %b.addr, align 8
ret i8* %tmp9
}
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