brintos

brintos / llvm-project-archived public Read only

0
0
Text · 2.6 KiB · 4eac3f2 Raw
60 lines · plain
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 62; RUN: opt < %s -S -passes=licm | FileCheck %s3 4; See https://discourse.llvm.org/t/rfc-dont-merge-memory-locations-in-aliassettracker/733365; pairwise TBAA indicates NoAlias of load/store ptr at %s with store i32 at %06; yet LICM fails to promote load/store ptr %s out of the loop7 8define void @_Z4testP1S(ptr %s) {9; CHECK-LABEL: define void @_Z4testP1S(10; CHECK-SAME: ptr [[S:%.*]]) {11; CHECK-NEXT:  [[ENTRY:.*]]:12; CHECK-NEXT:    [[S_PROMOTED:%.*]] = load ptr, ptr [[S]], align 4, !tbaa [[ANYPTR_TBAA0:![0-9]+]]13; CHECK-NEXT:    br label %[[FOR_BODY:.*]]14; CHECK:       [[FOR_COND_CLEANUP:.*]]:15; CHECK-NEXT:    [[ADD_PTR_I_LCSSA:%.*]] = phi ptr [ [[ADD_PTR_I:%.*]], %[[FOR_BODY]] ]16; CHECK-NEXT:    store ptr [[ADD_PTR_I_LCSSA]], ptr [[S]], align 4, !tbaa [[ANYPTR_TBAA0]]17; CHECK-NEXT:    ret void18; CHECK:       [[FOR_BODY]]:19; CHECK-NEXT:    [[ADD_PTR_I1:%.*]] = phi ptr [ [[S_PROMOTED]], %[[ENTRY]] ], [ [[ADD_PTR_I]], %[[FOR_BODY]] ]20; CHECK-NEXT:    [[I_05:%.*]] = phi i32 [ 0, %[[ENTRY]] ], [ [[INC:%.*]], %[[FOR_BODY]] ]21; CHECK-NEXT:    store i32 [[I_05]], ptr [[ADD_PTR_I1]], align 4, !tbaa [[INT_TBAA4:![0-9]+]]22; CHECK-NEXT:    [[ADD_PTR_I]] = getelementptr inbounds i32, ptr [[ADD_PTR_I1]], i32 123; CHECK-NEXT:    [[INC]] = add nuw nsw i32 [[I_05]], 124; CHECK-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i32 [[INC]], 10025; CHECK-NEXT:    br i1 [[EXITCOND_NOT]], label %[[FOR_COND_CLEANUP]], label %[[FOR_BODY]]26;27entry:28  br label %for.body29 30for.cond.cleanup:                                 ; preds = %for.body31  ret void32 33for.body:                                         ; preds = %entry, %for.body34  %i.05 = phi i32 [ 0, %entry ], [ %inc, %for.body ]35  %0 = load ptr, ptr %s, align 4, !tbaa !036  store i32 %i.05, ptr %0, align 4, !tbaa !537  %add.ptr.i = getelementptr inbounds i32, ptr %0, i32 138  store ptr %add.ptr.i, ptr %s, align 4, !tbaa !739  %inc = add nuw nsw i32 %i.05, 140  %exitcond.not = icmp eq i32 %inc, 10041  br i1 %exitcond.not, label %for.cond.cleanup, label %for.body42}43 44!0 = !{!1, !2, i64 0}45!1 = !{!"_ZTS1S", !2, i64 0}46!2 = !{!"any pointer", !3, i64 0}47!3 = !{!"omnipotent char", !4, i64 0}48!4 = !{!"Simple C++ TBAA"}49!5 = !{!6, !6, i64 0}50!6 = !{!"int", !3, i64 0}51!7 = !{!2, !2, i64 0}52;.53; CHECK: [[ANYPTR_TBAA0]] = !{[[META1:![0-9]+]], [[META1]], i64 0}54; CHECK: [[META1]] = !{!"any pointer", [[META2:![0-9]+]], i64 0}55; CHECK: [[META2]] = !{!"omnipotent char", [[META3:![0-9]+]], i64 0}56; CHECK: [[META3]] = !{!"Simple C++ TBAA"}57; CHECK: [[INT_TBAA4]] = !{[[META5:![0-9]+]], [[META5]], i64 0}58; CHECK: [[META5]] = !{!"int", [[META2]], i64 0}59;.60