; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt -passes="loop-idiom" < %s -S | FileCheck %s define void @looper(ptr noalias nocapture readonly %M, ptr noalias nocapture %out) { ; CHECK-LABEL: @looper( ; CHECK-NEXT: entry: ; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 8 [[OUT:%.*]], ptr align 8 [[M:%.*]], i64 256, i1 false), !tbaa [[TBAA0:![0-9]+]] ; CHECK-NEXT: br label [[FOR_BODY4:%.*]] ; CHECK: for.body4: ; CHECK-NEXT: [[J_020:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[INC:%.*]], [[FOR_BODY4]] ] ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds double, ptr [[M]], i64 [[J_020]] ; CHECK-NEXT: [[A0:%.*]] = load double, ptr [[ARRAYIDX]], align 8, !tbaa [[TBAA0]] ; CHECK-NEXT: [[ARRAYIDX8:%.*]] = getelementptr inbounds double, ptr [[OUT]], i64 [[J_020]] ; CHECK-NEXT: [[INC]] = add nuw nsw i64 [[J_020]], 1 ; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i64 [[J_020]], 31 ; CHECK-NEXT: br i1 [[CMP2]], label [[FOR_BODY4]], label [[FOR_COND_CLEANUP:%.*]] ; CHECK: for.cond.cleanup: ; CHECK-NEXT: ret void ; entry: br label %for.body4 for.body4: ; preds = %for.cond1.preheader, %for.body4 %j.020 = phi i64 [ 0, %entry ], [ %inc, %for.body4 ] %arrayidx = getelementptr inbounds double, ptr %M, i64 %j.020 %a0 = load double, ptr %arrayidx, align 8, !tbaa !5 %arrayidx8 = getelementptr inbounds double, ptr %out, i64 %j.020 store double %a0, ptr %arrayidx8, align 8, !tbaa !5 %inc = add nuw nsw i64 %j.020, 1 %cmp2 = icmp ult i64 %j.020, 31 br i1 %cmp2, label %for.body4, label %for.cond.cleanup for.cond.cleanup: ; preds = %for.cond.cleanup3 ret void } define void @looperBadMerge(ptr noalias nocapture readonly %M, ptr noalias nocapture %out) { ; CHECK-LABEL: @looperBadMerge( ; CHECK-NEXT: entry: ; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 8 [[OUT:%.*]], ptr align 8 [[M:%.*]], i64 256, i1 false), !tbaa [[TBAA4:![0-9]+]] ; CHECK-NEXT: br label [[FOR_BODY4:%.*]] ; CHECK: for.body4: ; CHECK-NEXT: [[J_020:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[INC:%.*]], [[FOR_BODY4]] ] ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds double, ptr [[M]], i64 [[J_020]] ; CHECK-NEXT: [[A0:%.*]] = load double, ptr [[ARRAYIDX]], align 8, !tbaa [[TBAA0]] ; CHECK-NEXT: [[ARRAYIDX8:%.*]] = getelementptr inbounds double, ptr [[OUT]], i64 [[J_020]] ; CHECK-NEXT: [[INC]] = add nuw nsw i64 [[J_020]], 1 ; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i64 [[J_020]], 31 ; CHECK-NEXT: br i1 [[CMP2]], label [[FOR_BODY4]], label [[FOR_COND_CLEANUP:%.*]] ; CHECK: for.cond.cleanup: ; CHECK-NEXT: ret void ; entry: br label %for.body4 for.body4: ; preds = %for.cond1.preheader, %for.body4 %j.020 = phi i64 [ 0, %entry ], [ %inc, %for.body4 ] %arrayidx = getelementptr inbounds double, ptr %M, i64 %j.020 %a0 = load double, ptr %arrayidx, align 8, !tbaa !5 %arrayidx8 = getelementptr inbounds double, ptr %out, i64 %j.020 store double %a0, ptr %arrayidx8, align 8, !tbaa !3 %inc = add nuw nsw i64 %j.020, 1 %cmp2 = icmp ult i64 %j.020, 31 br i1 %cmp2, label %for.body4, label %for.cond.cleanup for.cond.cleanup: ; preds = %for.cond.cleanup3 ret void } define void @looperGoodMerge(ptr noalias nocapture readonly %M, ptr noalias nocapture %out) { ; CHECK-LABEL: @looperGoodMerge( ; CHECK-NEXT: entry: ; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 8 [[OUT:%.*]], ptr align 8 [[M:%.*]], i64 256, i1 false) ; CHECK-NEXT: br label [[FOR_BODY4:%.*]] ; CHECK: for.body4: ; CHECK-NEXT: [[J_020:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[INC:%.*]], [[FOR_BODY4]] ] ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds double, ptr [[M]], i64 [[J_020]] ; CHECK-NEXT: [[A0:%.*]] = load double, ptr [[ARRAYIDX]], align 8, !tbaa [[TBAA0]] ; CHECK-NEXT: [[ARRAYIDX8:%.*]] = getelementptr inbounds double, ptr [[OUT]], i64 [[J_020]] ; CHECK-NEXT: [[INC]] = add nuw nsw i64 [[J_020]], 1 ; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i64 [[J_020]], 31 ; CHECK-NEXT: br i1 [[CMP2]], label [[FOR_BODY4]], label [[FOR_COND_CLEANUP:%.*]] ; CHECK: for.cond.cleanup: ; CHECK-NEXT: ret void ; entry: br label %for.body4 for.body4: ; preds = %for.cond1.preheader, %for.body4 %j.020 = phi i64 [ 0, %entry ], [ %inc, %for.body4 ] %arrayidx = getelementptr inbounds double, ptr %M, i64 %j.020 %a0 = load double, ptr %arrayidx, align 8, !tbaa !5 %arrayidx8 = getelementptr inbounds double, ptr %out, i64 %j.020 store double %a0, ptr %arrayidx8, align 8 %inc = add nuw nsw i64 %j.020, 1 %cmp2 = icmp ult i64 %j.020, 31 br i1 %cmp2, label %for.body4, label %for.cond.cleanup for.cond.cleanup: ; preds = %for.cond.cleanup3 ret void } define void @looperConstantTBAAStruct(ptr nocapture noalias %out, ptr nocapture noalias %in) { ; CHECK-LABEL: @looperConstantTBAAStruct( ; CHECK-NEXT: entry: ; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 8 [[OUT:%.*]], ptr align 8 [[IN:%.*]], i64 32, i1 false), !tbaa [[TBAA5:![0-9]+]] ; CHECK-NEXT: br label [[FOR_BODY4:%.*]] ; CHECK: for.body4: ; CHECK-NEXT: [[J_020:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[INC:%.*]], [[FOR_BODY4]] ] ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds double, ptr [[IN]], i64 [[J_020]] ; CHECK-NEXT: [[A0:%.*]] = load double, ptr [[ARRAYIDX]], align 8, !tbaa [[TBAA9:![0-9]+]] ; CHECK-NEXT: [[ARRAYIDX8:%.*]] = getelementptr inbounds double, ptr [[OUT]], i64 [[J_020]] ; CHECK-NEXT: [[INC]] = add nuw nsw i64 [[J_020]], 1 ; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i64 [[J_020]], 3 ; CHECK-NEXT: br i1 [[CMP2]], label [[FOR_BODY4]], label [[FOR_COND_CLEANUP:%.*]] ; CHECK: for.cond.cleanup: ; CHECK-NEXT: ret void ; entry: br label %for.body4 for.body4: ; preds = %for.cond1.preheader, %for.body4 %j.020 = phi i64 [ 0, %entry ], [ %inc, %for.body4 ] %arrayidx = getelementptr inbounds double, ptr %in, i64 %j.020 %a0 = load double, ptr %arrayidx, align 8, !tbaa !10 %arrayidx8 = getelementptr inbounds double, ptr %out, i64 %j.020 store double %a0, ptr %arrayidx8, align 8, !tbaa !10 %inc = add nuw nsw i64 %j.020, 1 %cmp2 = icmp ult i64 %j.020, 3 br i1 %cmp2, label %for.body4, label %for.cond.cleanup for.cond.cleanup: ; preds = %for.cond.cleanup3 ret void } define void @looperVarTBAAStruct(ptr nocapture noalias %out, ptr nocapture noalias %in, i64 %len) { ; CHECK-LABEL: @looperVarTBAAStruct( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[UMAX:%.*]] = call i64 @llvm.umax.i64(i64 [[LEN:%.*]], i64 1) ; CHECK-NEXT: [[TMP0:%.*]] = shl nuw i64 [[UMAX]], 3 ; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 8 [[OUT:%.*]], ptr align 8 [[IN:%.*]], i64 [[TMP0]], i1 false) ; CHECK-NEXT: br label [[FOR_BODY4:%.*]] ; CHECK: for.body4: ; CHECK-NEXT: [[J_020:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[INC:%.*]], [[FOR_BODY4]] ] ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds double, ptr [[IN]], i64 [[J_020]] ; CHECK-NEXT: [[A0:%.*]] = load double, ptr [[ARRAYIDX]], align 8, !tbaa [[TBAA9]] ; CHECK-NEXT: [[ARRAYIDX8:%.*]] = getelementptr inbounds double, ptr [[OUT]], i64 [[J_020]] ; CHECK-NEXT: [[INC]] = add nuw nsw i64 [[J_020]], 1 ; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i64 [[INC]], [[LEN]] ; CHECK-NEXT: br i1 [[CMP2]], label [[FOR_BODY4]], label [[FOR_COND_CLEANUP:%.*]] ; CHECK: for.cond.cleanup: ; CHECK-NEXT: ret void ; entry: br label %for.body4 for.body4: ; preds = %for.cond1.preheader, %for.body4 %j.020 = phi i64 [ 0, %entry ], [ %inc, %for.body4 ] %arrayidx = getelementptr inbounds double, ptr %in, i64 %j.020 %a0 = load double, ptr %arrayidx, align 8, !tbaa !10 %arrayidx8 = getelementptr inbounds double, ptr %out, i64 %j.020 store double %a0, ptr %arrayidx8, align 8, !tbaa !10 %inc = add nuw nsw i64 %j.020, 1 %cmp2 = icmp ult i64 %inc, %len br i1 %cmp2, label %for.body4, label %for.cond.cleanup for.cond.cleanup: ; preds = %for.cond.cleanup3 ret void } !3 = !{!4, !4, i64 0} !4 = !{!"float", !7, i64 0} !5 = !{!6, !6, i64 0} !6 = !{!"double", !7, i64 0} !7 = !{!"omnipotent char", !8, i64 0} !8 = !{!"Simple C++ TBAA"} !15 = !{!8, i64 0, !"omnipotent char"} !17 = !{!15, i64 8, !"double"} !9 = !{!15, i64 32, !"_ZTS1A", !17, i64 0, i64 8, !17, i64 8, i64 8, !17, i64 16, i64 8, !17, i64 24, i64 8} !10 = !{!9, !17, i64 0, i64 8}