1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -passes=loop-idiom < %s -S | FileCheck %s 3target 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 5;; memcpy.atomic formation (atomic load & store) -- element size 2 6;; Will not create call due to a max element size of 0 7define void @test1(i64 %Size) nounwind ssp { 8; CHECK-LABEL: @test1( 9; CHECK-NEXT: bb.nph: 10; CHECK-NEXT: [[BASE:%.*]] = alloca i16, i32 10000, align 2 11; CHECK-NEXT: [[DEST:%.*]] = alloca i16, i32 10000, align 2 12; CHECK-NEXT: br label [[FOR_BODY:%.*]] 13; CHECK: for.body: 14; CHECK-NEXT: [[INDVAR:%.*]] = phi i64 [ 0, [[BB_NPH:%.*]] ], [ [[INDVAR_NEXT:%.*]], [[FOR_BODY]] ] 15; CHECK-NEXT: [[I_0_014:%.*]] = getelementptr i16, ptr [[BASE]], i64 [[INDVAR]] 16; CHECK-NEXT: [[DESTI:%.*]] = getelementptr i16, ptr [[DEST]], i64 [[INDVAR]] 17; CHECK-NEXT: [[V:%.*]] = load atomic i16, ptr [[I_0_014]] unordered, align 2 18; CHECK-NEXT: store atomic i16 [[V]], ptr [[DESTI]] unordered, align 2 19; CHECK-NEXT: [[INDVAR_NEXT]] = add i64 [[INDVAR]], 1 20; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVAR_NEXT]], [[SIZE:%.*]] 21; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END:%.*]], label [[FOR_BODY]] 22; CHECK: for.end: 23; CHECK-NEXT: ret void 24; 25bb.nph: 26 %Base = alloca i16, i32 10000 27 %Dest = alloca i16, i32 10000 28 br label %for.body 29 30for.body: ; preds = %bb.nph, %for.body 31 %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ] 32 %I.0.014 = getelementptr i16, ptr %Base, i64 %indvar 33 %DestI = getelementptr i16, ptr %Dest, i64 %indvar 34 %V = load atomic i16, ptr %I.0.014 unordered, align 2 35 store atomic i16 %V, ptr %DestI unordered, align 2 36 %indvar.next = add i64 %indvar, 1 37 %exitcond = icmp eq i64 %indvar.next, %Size 38 br i1 %exitcond, label %for.end, label %for.body 39 40for.end: ; preds = %for.body, %entry 41 ret void 42} 43