; RUN: opt -S -aa-pipeline=basic-aa,tbaa -passes=gvn < %s | FileCheck -check-prefix=BASICAA %s ; RUN: opt -S -aa-pipeline=tbaa -passes=gvn < %s | FileCheck %s ; rdar://8875631, rdar://8875069 ; BasicAA should notice that the store stores to the entire %u object, ; so the %tmp5 load is PartialAlias with the store and suppress TBAA. ; Without BasicAA, TBAA should say that %tmp5 is NoAlias with the store. target datalayout = "e-p:64:64:64" %union.anon = type { double } @u = global %union.anon { double -2.500000e-01 }, align 8 @endianness_test = global i64 1, align 8 define i32 @signbit(double %x) nounwind { ; BASICAA: ret i32 %tmp5.lobit ; CHECK: ret i32 0 entry: %u = alloca %union.anon, align 8 store double %x, ptr %u, align 8, !tbaa !0 %tmp2 = load i32, ptr @endianness_test, align 8, !tbaa !3 %idxprom = sext i32 %tmp2 to i64 %arrayidx = getelementptr inbounds [2 x i32], ptr %u, i64 0, i64 %idxprom %tmp5 = load i32, ptr %arrayidx, align 4, !tbaa !3 %tmp5.lobit = lshr i32 %tmp5, 31 ret i32 %tmp5.lobit } !0 = !{!4, !4, i64 0} !1 = !{!"omnipotent char", !2} !2 = !{!"Simple C/C++ TBAA"} !3 = !{!5, !5, i64 0} !4 = !{!"double", !1} !5 = !{!"int", !1}