1 ; RUN: opt -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" 4 5 ; CHECK: @memset 6 ; CHECK-NOT: llvm.memset 7 define i8* @memset(i8* %b, i32 %c, i64 %len) nounwind uwtable ssp { 8 entry: 9 %cmp1 = icmp ult i64 0, %len 10 br i1 %cmp1, label %for.body.lr.ph, label %for.end 11 12 for.body.lr.ph: ; preds = %entry 13 %conv6 = trunc i32 %c to i8 14 br label %for.body 15 16 for.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* %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 24 for.cond.for.end_crit_edge: ; preds = %for.body 25 br label %for.end 26 27 for.end: ; preds = %for.cond.for.end_crit_edge, %entry 28 ret i8* %b 29 } 30 31
