1 ; RUN: opt -basic-aa -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"
4 ;; memcpy.atomic formation (atomic load & store) -- element size 2
5 ;; Will not create call due to a max element size of 0
6 define void @test1(i64 %Size) nounwind ssp {
8 ; CHECK-NOT: call void @llvm.memcpy.element.unordered.atomic
12 %Base = alloca i16, i32 10000
13 %Dest = alloca i16, i32 10000
16 for.body: ; preds = %bb.nph, %for.body
17 %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ]
18 %I.0.014 = getelementptr i16, i16* %Base, i64 %indvar
19 %DestI = getelementptr i16, i16* %Dest, i64 %indvar
20 %V = load atomic i16, i16* %I.0.014 unordered, align 2
21 store atomic i16 %V, i16* %DestI unordered, align 2
22 %indvar.next = add i64 %indvar, 1
23 %exitcond = icmp eq i64 %indvar.next, %Size
24 br i1 %exitcond, label %for.end, label %for.body
26 for.end: ; preds = %for.body, %entry