[Attributor][FIX] Recursion via memory needs to be tracked explicitly

[jdoerfert]

Summary

Recursion can happen when we see a PHI use the second time or when we
look at a store value operand use again. We already visited the
potential copies and doing so again will just cause endless looping.

[kuter]

LGTM

llvm/lib/Transforms/IPO/Attributor.cpp

while (!Worklist.empty()) {
     }
     if (U->getUser()->isDroppable()) {
       LLVM_DEBUG(dbgs() << "[Attributor] Droppable user, skip!\n");
       continue;
     }
 
     if (auto *SI = dyn_cast<StoreInst>(U->getUser())) {
       if (&SI->getOperandUse(0) == U) {
+        if (!Visited.insert(U).second)
+          continue;
         SmallSetVector<Value *, 4> PotentialCopies;
         if (AA::getPotentialCopiesOfStoredValue(*this, *SI, PotentialCopies,
                                                 QueryingAA,
                                                 UsedAssumedInformation)) {
           LLVM_DEBUG(dbgs() << "[Attributor] Value is stored, continue with "
                             << PotentialCopies.size()
                             << " potential copies instead!\n");
           for (Value *PotentialCopy : PotentialCopies)

llvm/test/Transforms/Attributor/value-simplify-pointer-info.ll

 @Flag1 = internal global i32 undef, align 4
 @Flag2 = internal global i32 undef, align 4
 @Flag3 = internal global i32 zeroinitializer, align 4
 @a1 = internal global i32 zeroinitializer
 @a2 = internal global i32 zeroinitializer
 @a3 = internal global i32 undef
 @bytes1 = internal global i32 undef
 @bytes2 = internal global i32 undef
+@rec_storage = internal global i32 undef
 
 ;.
 ; CHECK: @[[GLOBALBYTES:[a-zA-Z0-9_$"\\.-]+]] = global [1024 x i8] zeroinitializer, align 16
 ; CHECK: @[[GINT1:[a-zA-Z0-9_$"\\.-]+]] = global i32 0, align 4
 ; CHECK: @[[GINT2:[a-zA-Z0-9_$"\\.-]+]] = global i32 0, align 4
 ; CHECK: @[[GSTATIC_INT1:[a-zA-Z0-9_$"\\.-]+]] = internal global i32 0, align 4
 ; CHECK: @[[GSTATIC_INT2:[a-zA-Z0-9_$"\\.-]+]] = internal global i32 0, align 4
 ; CHECK: @[[GSTATIC_INT3:[a-zA-Z0-9_$"\\.-]+]] = internal global i32 0, align 4
 ; CHECK: @[[GSTATIC_UNDEF_INT1:[a-zA-Z0-9_$"\\.-]+]] = internal global i32 undef, align 4
 ; CHECK: @[[GSTATIC_UNDEF_INT2:[a-zA-Z0-9_$"\\.-]+]] = internal global i32 undef, align 4
 ; CHECK: @[[GI1:[a-zA-Z0-9_$"\\.-]+]] = internal global i32 undef, align 4
 ; CHECK: @[[GI2:[a-zA-Z0-9_$"\\.-]+]] = internal global i32 undef, align 4
 ; CHECK: @[[GS1:[a-zA-Z0-9_$"\\.-]+]] = internal global [[STRUCT_S:%.*]] undef, align 4
 ; CHECK: @[[GS2:[a-zA-Z0-9_$"\\.-]+]] = internal global [[STRUCT_S:%.*]] zeroinitializer, align 4
 ; CHECK: @[[GBYTES:[a-zA-Z0-9_$"\\.-]+]] = internal global [1024 x i8] zeroinitializer, align 16
 ; CHECK: @[[FLAG0:[a-zA-Z0-9_$"\\.-]+]] = global i32 0, align 4
 ; CHECK: @[[FLAG1:[a-zA-Z0-9_$"\\.-]+]] = internal global i32 undef, align 4
 ; CHECK: @[[FLAG2:[a-zA-Z0-9_$"\\.-]+]] = internal global i32 undef, align 4
 ; CHECK: @[[FLAG3:[a-zA-Z0-9_$"\\.-]+]] = internal global i32 0, align 4
 ; CHECK: @[[A1:[a-zA-Z0-9_$"\\.-]+]] = internal global i32 0
 ; CHECK: @[[A2:[a-zA-Z0-9_$"\\.-]+]] = internal global i32 0
 ; CHECK: @[[A3:[a-zA-Z0-9_$"\\.-]+]] = internal global i32 undef
 ; CHECK: @[[BYTES1:[a-zA-Z0-9_$"\\.-]+]] = internal global i32 undef
 ; CHECK: @[[BYTES2:[a-zA-Z0-9_$"\\.-]+]] = internal global i32 undef
+; CHECK: @[[REC_STORAGE:[a-zA-Z0-9_$"\\.-]+]] = internal global i32 undef
 ;.
 define void @write_arg(i32* %p, i32 %v) {
 ; IS__TUNIT____: Function Attrs: argmemonly nofree nosync nounwind willreturn writeonly
 ; IS__TUNIT____-LABEL: define {{[^@]+}}@write_arg
 ; IS__TUNIT____-SAME: (i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[P:%.*]], i32 [[V:%.*]]) #[[ATTR0:[0-9]+]] {
 ; IS__TUNIT____-NEXT:  entry:
 ; IS__TUNIT____-NEXT:    store i32 [[V]], i32* [[P]], align 4, !tbaa [[TBAA3:![0-9]+]]
 ; IS__TUNIT____-NEXT:    ret void

 ; IS__TUNIT_OPM-NEXT:    ret void
 ;
 ; IS__TUNIT_NPM: Function Attrs: argmemonly nofree nosync nounwind willreturn
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@local_alloca_simplifiable_1
 ; IS__TUNIT_NPM-SAME: (%struct.S* noalias nocapture nofree nonnull writeonly sret([[STRUCT_S:%.*]]) align 4 dereferenceable(24) [[AGG_RESULT:%.*]]) #[[ATTR1:[0-9]+]] {
 ; IS__TUNIT_NPM-NEXT:  entry:
 ; IS__TUNIT_NPM-NEXT:    [[S:%.*]] = alloca [[STRUCT_S]], align 4
 ; IS__TUNIT_NPM-NEXT:    [[I:%.*]] = bitcast %struct.S* [[S]] to i8*
-; IS__TUNIT_NPM-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 24, i8* nocapture nofree noundef nonnull align 4 dereferenceable(24) [[I]]) #[[ATTR6:[0-9]+]]
+; IS__TUNIT_NPM-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 24, i8* nocapture nofree noundef nonnull align 4 dereferenceable(24) [[I]]) #[[ATTR7:[0-9]+]]
 ; IS__TUNIT_NPM-NEXT:    [[F1:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[S]], i64 0, i32 3
 ; IS__TUNIT_NPM-NEXT:    [[F2:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[S]], i64 0, i32 4
 ; IS__TUNIT_NPM-NEXT:    [[F3:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[S]], i64 0, i32 5
 ; IS__TUNIT_NPM-NEXT:    [[I1:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[S]], i64 0, i32 0
 ; IS__TUNIT_NPM-NEXT:    call void @write_arg(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(24) [[I1]], i32 noundef 1) #[[ATTR4:[0-9]+]]
 ; IS__TUNIT_NPM-NEXT:    [[I2:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[S]], i64 0, i32 1
 ; IS__TUNIT_NPM-NEXT:    call void @write_arg(i32* nocapture nofree nonnull writeonly align 4 dereferenceable(20) [[I2]], i32 noundef 2) #[[ATTR4]]
 ; IS__TUNIT_NPM-NEXT:    [[I3:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[S]], i64 0, i32 2

 ; IS__TUNIT_NPM-NEXT:    store i32 1, i32* [[I19]], align 4, !tbaa [[TBAA12:![0-9]+]]
 ; IS__TUNIT_NPM-NEXT:    [[MUL11:%.*]] = shl nsw i32 2, 1
 ; IS__TUNIT_NPM-NEXT:    [[I212:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[AGG_RESULT]], i64 0, i32 1
 ; IS__TUNIT_NPM-NEXT:    store i32 [[MUL11]], i32* [[I212]], align 4, !tbaa [[TBAA13:![0-9]+]]
 ; IS__TUNIT_NPM-NEXT:    [[ADD15:%.*]] = add nsw i32 3, 1
 ; IS__TUNIT_NPM-NEXT:    [[I316:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[AGG_RESULT]], i64 0, i32 2
 ; IS__TUNIT_NPM-NEXT:    store i32 [[ADD15]], i32* [[I316]], align 4, !tbaa [[TBAA14:![0-9]+]]
 ; IS__TUNIT_NPM-NEXT:    [[I12:%.*]] = bitcast %struct.S* [[S]] to i8*
-; IS__TUNIT_NPM-NEXT:    call void @llvm.lifetime.end.p0i8(i64 noundef 24, i8* nocapture nofree noundef nonnull align 4 dereferenceable(24) [[I12]]) #[[ATTR6]]
+; IS__TUNIT_NPM-NEXT:    call void @llvm.lifetime.end.p0i8(i64 noundef 24, i8* nocapture nofree noundef nonnull align 4 dereferenceable(24) [[I12]]) #[[ATTR7]]
 ; IS__TUNIT_NPM-NEXT:    ret void
 ;
 ; IS__CGSCC_OPM: Function Attrs: argmemonly nofree nosync nounwind willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@local_alloca_simplifiable_1
 ; IS__CGSCC_OPM-SAME: (%struct.S* noalias nocapture nofree nonnull writeonly sret([[STRUCT_S:%.*]]) align 4 dereferenceable(24) [[AGG_RESULT:%.*]]) #[[ATTR1:[0-9]+]] {
 ; IS__CGSCC_OPM-NEXT:  entry:
 ; IS__CGSCC_OPM-NEXT:    [[S:%.*]] = alloca [[STRUCT_S]], align 4
 ; IS__CGSCC_OPM-NEXT:    [[I:%.*]] = bitcast %struct.S* [[S]] to i8*

 ; IS__CGSCC_OPM-NEXT:    ret void
 ;
 ; IS__CGSCC_NPM: Function Attrs: argmemonly nofree nosync nounwind willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@local_alloca_simplifiable_1
 ; IS__CGSCC_NPM-SAME: (%struct.S* noalias nocapture nofree nonnull writeonly sret([[STRUCT_S:%.*]]) align 4 dereferenceable(24) [[AGG_RESULT:%.*]]) #[[ATTR1:[0-9]+]] {
 ; IS__CGSCC_NPM-NEXT:  entry:
 ; IS__CGSCC_NPM-NEXT:    [[S:%.*]] = alloca [[STRUCT_S]], align 4
 ; IS__CGSCC_NPM-NEXT:    [[I:%.*]] = bitcast %struct.S* [[S]] to i8*
-; IS__CGSCC_NPM-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 24, i8* nocapture nofree noundef nonnull align 4 dereferenceable(24) [[I]]) #[[ATTR8:[0-9]+]]
+; IS__CGSCC_NPM-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 24, i8* nocapture nofree noundef nonnull align 4 dereferenceable(24) [[I]]) #[[ATTR9:[0-9]+]]
 ; IS__CGSCC_NPM-NEXT:    [[F1:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[S]], i64 0, i32 3
 ; IS__CGSCC_NPM-NEXT:    [[F2:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[S]], i64 0, i32 4
 ; IS__CGSCC_NPM-NEXT:    [[F3:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[S]], i64 0, i32 5
 ; IS__CGSCC_NPM-NEXT:    [[I1:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[S]], i64 0, i32 0
-; IS__CGSCC_NPM-NEXT:    call void @write_arg(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(24) [[I1]], i32 noundef 1) #[[ATTR9:[0-9]+]]
+; IS__CGSCC_NPM-NEXT:    call void @write_arg(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(24) [[I1]], i32 noundef 1) #[[ATTR10:[0-9]+]]
 ; IS__CGSCC_NPM-NEXT:    [[I2:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[S]], i64 0, i32 1
-; IS__CGSCC_NPM-NEXT:    call void @write_arg(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(20) [[I2]], i32 noundef 2) #[[ATTR9]]
+; IS__CGSCC_NPM-NEXT:    call void @write_arg(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(20) [[I2]], i32 noundef 2) #[[ATTR10]]
 ; IS__CGSCC_NPM-NEXT:    [[I3:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[S]], i64 0, i32 2
-; IS__CGSCC_NPM-NEXT:    call void @write_arg(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(16) [[I3]], i32 noundef 3) #[[ATTR9]]
+; IS__CGSCC_NPM-NEXT:    call void @write_arg(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(16) [[I3]], i32 noundef 3) #[[ATTR10]]
 ; IS__CGSCC_NPM-NEXT:    [[F12:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[AGG_RESULT]], i64 0, i32 3
 ; IS__CGSCC_NPM-NEXT:    store float 0x3FF19999A0000000, float* [[F12]], align 4, !tbaa [[TBAA7:![0-9]+]]
 ; IS__CGSCC_NPM-NEXT:    [[MUL:%.*]] = fmul float 0x40019999A0000000, 2.000000e+00
 ; IS__CGSCC_NPM-NEXT:    [[F24:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[AGG_RESULT]], i64 0, i32 4
 ; IS__CGSCC_NPM-NEXT:    store float [[MUL]], float* [[F24]], align 4, !tbaa [[TBAA10:![0-9]+]]
 ; IS__CGSCC_NPM-NEXT:    [[ADD:%.*]] = fadd float 0x400A666660000000, 0x3FF19999A0000000
 ; IS__CGSCC_NPM-NEXT:    [[F37:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[AGG_RESULT]], i64 0, i32 5
 ; IS__CGSCC_NPM-NEXT:    store float [[ADD]], float* [[F37]], align 4, !tbaa [[TBAA11:![0-9]+]]
 ; IS__CGSCC_NPM-NEXT:    [[I19:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[AGG_RESULT]], i64 0, i32 0
 ; IS__CGSCC_NPM-NEXT:    store i32 1, i32* [[I19]], align 4, !tbaa [[TBAA12:![0-9]+]]
 ; IS__CGSCC_NPM-NEXT:    [[MUL11:%.*]] = shl nsw i32 2, 1
 ; IS__CGSCC_NPM-NEXT:    [[I212:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[AGG_RESULT]], i64 0, i32 1
 ; IS__CGSCC_NPM-NEXT:    store i32 [[MUL11]], i32* [[I212]], align 4, !tbaa [[TBAA13:![0-9]+]]
 ; IS__CGSCC_NPM-NEXT:    [[ADD15:%.*]] = add nsw i32 3, 1
 ; IS__CGSCC_NPM-NEXT:    [[I316:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[AGG_RESULT]], i64 0, i32 2
 ; IS__CGSCC_NPM-NEXT:    store i32 [[ADD15]], i32* [[I316]], align 4, !tbaa [[TBAA14:![0-9]+]]
 ; IS__CGSCC_NPM-NEXT:    [[I12:%.*]] = bitcast %struct.S* [[S]] to i8*
-; IS__CGSCC_NPM-NEXT:    call void @llvm.lifetime.end.p0i8(i64 noundef 24, i8* nocapture nofree noundef nonnull align 4 dereferenceable(24) [[I12]]) #[[ATTR8]]
+; IS__CGSCC_NPM-NEXT:    call void @llvm.lifetime.end.p0i8(i64 noundef 24, i8* nocapture nofree noundef nonnull align 4 dereferenceable(24) [[I12]]) #[[ATTR9]]
 ; IS__CGSCC_NPM-NEXT:    ret void
 ;
 entry:
   %s = alloca %struct.S, align 4
   %i = bitcast %struct.S* %s to i8*
   call void @llvm.lifetime.start.p0i8(i64 24, i8* nonnull %i)
   %f1 = getelementptr inbounds %struct.S, %struct.S* %s, i64 0, i32 3
   store float 0x3FF19999A0000000, float* %f1, align 4, !tbaa !7

 ; IS__TUNIT_OPM-NEXT:    ret void
 ;
 ; IS__TUNIT_NPM: Function Attrs: nofree nosync nounwind willreturn
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@local_alloca_simplifiable_2
 ; IS__TUNIT_NPM-SAME: () #[[ATTR2:[0-9]+]] {
 ; IS__TUNIT_NPM-NEXT:  entry:
 ; IS__TUNIT_NPM-NEXT:    [[BYTES:%.*]] = alloca [1024 x i8], align 16
 ; IS__TUNIT_NPM-NEXT:    [[I:%.*]] = getelementptr inbounds [1024 x i8], [1024 x i8]* [[BYTES]], i64 0, i64 0
-; IS__TUNIT_NPM-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 1024, i8* nocapture nofree noundef nonnull align 16 dereferenceable(1024) [[I]]) #[[ATTR6]]
+; IS__TUNIT_NPM-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 1024, i8* nocapture nofree noundef nonnull align 16 dereferenceable(1024) [[I]]) #[[ATTR7]]
 ; IS__TUNIT_NPM-NEXT:    br label [[FOR_COND:%.*]]
 ; IS__TUNIT_NPM:       for.cond:
 ; IS__TUNIT_NPM-NEXT:    [[INDVARS_IV:%.*]] = phi i64 [ [[INDVARS_IV_NEXT:%.*]], [[FOR_INC:%.*]] ], [ 0, [[ENTRY:%.*]] ]
 ; IS__TUNIT_NPM-NEXT:    [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV]], 100
 ; IS__TUNIT_NPM-NEXT:    br i1 [[EXITCOND]], label [[FOR_BODY:%.*]], label [[FOR_COND_CLEANUP:%.*]]
 ; IS__TUNIT_NPM:       for.cond.cleanup:
 ; IS__TUNIT_NPM-NEXT:    br label [[FOR_END:%.*]]
 ; IS__TUNIT_NPM:       for.body:

 ; IS__TUNIT_NPM-NEXT:    [[ARRAYIDX35:%.*]] = getelementptr inbounds [1024 x i8], [1024 x i8]* @globalBytes, i64 0, i64 [[INDVARS_IV12]]
 ; IS__TUNIT_NPM-NEXT:    store i8 0, i8* [[ARRAYIDX35]], align 1, !tbaa [[TBAA19:![0-9]+]]
 ; IS__TUNIT_NPM-NEXT:    br label [[FOR_INC36]]
 ; IS__TUNIT_NPM:       for.inc36:
 ; IS__TUNIT_NPM-NEXT:    [[INDVARS_IV_NEXT13]] = add nuw nsw i64 [[INDVARS_IV12]], 1
 ; IS__TUNIT_NPM-NEXT:    br label [[FOR_COND28]], !llvm.loop [[LOOP20:![0-9]+]]
 ; IS__TUNIT_NPM:       for.end38:
 ; IS__TUNIT_NPM-NEXT:    [[I24:%.*]] = getelementptr inbounds [1024 x i8], [1024 x i8]* [[BYTES]], i64 0, i64 0
-; IS__TUNIT_NPM-NEXT:    call void @llvm.lifetime.end.p0i8(i64 noundef 1024, i8* nocapture nofree noundef nonnull align 16 dereferenceable(1024) [[I24]]) #[[ATTR6]]
+; IS__TUNIT_NPM-NEXT:    call void @llvm.lifetime.end.p0i8(i64 noundef 1024, i8* nocapture nofree noundef nonnull align 16 dereferenceable(1024) [[I24]]) #[[ATTR7]]
 ; IS__TUNIT_NPM-NEXT:    ret void
 ;
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@local_alloca_simplifiable_2() {
 ; IS__CGSCC_OPM-NEXT:  entry:
 ; IS__CGSCC_OPM-NEXT:    [[BYTES:%.*]] = alloca [1024 x i8], align 16
 ; IS__CGSCC_OPM-NEXT:    [[I:%.*]] = getelementptr inbounds [1024 x i8], [1024 x i8]* [[BYTES]], i64 0, i64 0
 ; IS__CGSCC_OPM-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 1024, i8* nocapture nofree noundef nonnull align 16 dereferenceable(1024) [[I]])
 ; IS__CGSCC_OPM-NEXT:    br label [[FOR_COND:%.*]]

 ; IS__CGSCC_OPM-NEXT:    [[I24:%.*]] = getelementptr inbounds [1024 x i8], [1024 x i8]* [[BYTES]], i64 0, i64 0
 ; IS__CGSCC_OPM-NEXT:    call void @llvm.lifetime.end.p0i8(i64 noundef 1024, i8* nofree noundef nonnull [[I24]])
 ; IS__CGSCC_OPM-NEXT:    ret void
 ;
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@local_alloca_simplifiable_2() {
 ; IS__CGSCC_NPM-NEXT:  entry:
 ; IS__CGSCC_NPM-NEXT:    [[BYTES:%.*]] = alloca [1024 x i8], align 16
 ; IS__CGSCC_NPM-NEXT:    [[I:%.*]] = getelementptr inbounds [1024 x i8], [1024 x i8]* [[BYTES]], i64 0, i64 0
-; IS__CGSCC_NPM-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 1024, i8* nocapture nofree noundef nonnull align 16 dereferenceable(1024) [[I]]) #[[ATTR8]]
+; IS__CGSCC_NPM-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 1024, i8* nocapture nofree noundef nonnull align 16 dereferenceable(1024) [[I]]) #[[ATTR9]]
 ; IS__CGSCC_NPM-NEXT:    br label [[FOR_COND:%.*]]
 ; IS__CGSCC_NPM:       for.cond:
 ; IS__CGSCC_NPM-NEXT:    [[INDVARS_IV:%.*]] = phi i64 [ [[INDVARS_IV_NEXT:%.*]], [[FOR_INC:%.*]] ], [ 0, [[ENTRY:%.*]] ]
 ; IS__CGSCC_NPM-NEXT:    [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV]], 100
 ; IS__CGSCC_NPM-NEXT:    br i1 [[EXITCOND]], label [[FOR_BODY:%.*]], label [[FOR_COND_CLEANUP:%.*]]
 ; IS__CGSCC_NPM:       for.cond.cleanup:
 ; IS__CGSCC_NPM-NEXT:    br label [[FOR_END:%.*]]
 ; IS__CGSCC_NPM:       for.body:

 ; IS__CGSCC_NPM:       for.inc22:
 ; IS__CGSCC_NPM-NEXT:    [[INDVARS_IV_NEXT8]] = add nuw nsw i64 [[INDVARS_IV7]], 1
 ; IS__CGSCC_NPM-NEXT:    br label [[FOR_COND13]], !llvm.loop [[LOOP22:![0-9]+]]
 ; IS__CGSCC_NPM:       for.end24:
 ; IS__CGSCC_NPM-NEXT:    [[ARRAYIDX25:%.*]] = getelementptr inbounds [1024 x i8], [1024 x i8]* [[BYTES]], i64 0, i64 1023
 ; IS__CGSCC_NPM-NEXT:    store i8 0, i8* [[ARRAYIDX25]], align 1, !tbaa [[TBAA15]]
 ; IS__CGSCC_NPM-NEXT:    [[ARRAYIDX26:%.*]] = getelementptr inbounds [1024 x i8], [1024 x i8]* [[BYTES]], i64 0, i64 500
 ; IS__CGSCC_NPM-NEXT:    [[I22:%.*]] = bitcast i8* [[ARRAYIDX26]] to i32*
-; IS__CGSCC_NPM-NEXT:    call void @write_arg(i32* nofree noundef nonnull writeonly align 4 dereferenceable(4) [[I22]], i32 noundef 0) #[[ATTR10:[0-9]+]]
+; IS__CGSCC_NPM-NEXT:    call void @write_arg(i32* nofree noundef nonnull writeonly align 4 dereferenceable(4) [[I22]], i32 noundef 0) #[[ATTR11:[0-9]+]]
 ; IS__CGSCC_NPM-NEXT:    br label [[FOR_COND28:%.*]]
 ; IS__CGSCC_NPM:       for.cond28:
 ; IS__CGSCC_NPM-NEXT:    [[INDVARS_IV12:%.*]] = phi i64 [ [[INDVARS_IV_NEXT13:%.*]], [[FOR_INC36:%.*]] ], [ 0, [[FOR_END24]] ]
 ; IS__CGSCC_NPM-NEXT:    [[EXITCOND14:%.*]] = icmp ne i64 [[INDVARS_IV12]], 1024
 ; IS__CGSCC_NPM-NEXT:    br i1 [[EXITCOND14]], label [[FOR_BODY31:%.*]], label [[FOR_COND_CLEANUP30:%.*]]
 ; IS__CGSCC_NPM:       for.cond.cleanup30:
 ; IS__CGSCC_NPM-NEXT:    br label [[FOR_END38:%.*]]
 ; IS__CGSCC_NPM:       for.body31:

 ; IS__TUNIT_OPM-NEXT:    ret i32 5
 ;
 ; IS__TUNIT_NPM: Function Attrs: nofree nosync nounwind willreturn
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@multi_obj_simplifiable_1
 ; IS__TUNIT_NPM-SAME: (i32 [[CND:%.*]]) #[[ATTR2]] {
 ; IS__TUNIT_NPM-NEXT:  entry:
 ; IS__TUNIT_NPM-NEXT:    [[L:%.*]] = alloca i32, align 4
 ; IS__TUNIT_NPM-NEXT:    [[I:%.*]] = bitcast i32* [[L]] to i8*
-; IS__TUNIT_NPM-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 4, i8* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[I]]) #[[ATTR6]]
+; IS__TUNIT_NPM-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 4, i8* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[I]]) #[[ATTR7]]
 ; IS__TUNIT_NPM-NEXT:    [[TOBOOL_NOT:%.*]] = icmp eq i32 [[CND]], 0
 ; IS__TUNIT_NPM-NEXT:    br i1 [[TOBOOL_NOT]], label [[COND_FALSE:%.*]], label [[COND_TRUE:%.*]]
 ; IS__TUNIT_NPM:       cond.true:
 ; IS__TUNIT_NPM-NEXT:    br label [[COND_END:%.*]]
 ; IS__TUNIT_NPM:       cond.false:
 ; IS__TUNIT_NPM-NEXT:    br label [[COND_END]]
 ; IS__TUNIT_NPM:       cond.end:
 ; IS__TUNIT_NPM-NEXT:    [[I2:%.*]] = bitcast i32* [[L]] to i8*
-; IS__TUNIT_NPM-NEXT:    call void @llvm.lifetime.end.p0i8(i64 noundef 4, i8* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[I2]]) #[[ATTR6]]
+; IS__TUNIT_NPM-NEXT:    call void @llvm.lifetime.end.p0i8(i64 noundef 4, i8* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[I2]]) #[[ATTR7]]
 ; IS__TUNIT_NPM-NEXT:    ret i32 5
 ;
 ; IS__CGSCC_OPM: Function Attrs: nofree nosync nounwind willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@multi_obj_simplifiable_1
 ; IS__CGSCC_OPM-SAME: (i32 [[CND:%.*]]) #[[ATTR3:[0-9]+]] {
 ; IS__CGSCC_OPM-NEXT:  entry:
 ; IS__CGSCC_OPM-NEXT:    [[L:%.*]] = alloca i32, align 4
 ; IS__CGSCC_OPM-NEXT:    [[I:%.*]] = bitcast i32* [[L]] to i8*

 ; IS__CGSCC_OPM-NEXT:    ret i32 5
 ;
 ; IS__CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@multi_obj_simplifiable_1
 ; IS__CGSCC_NPM-SAME: (i32 [[CND:%.*]]) #[[ATTR3:[0-9]+]] {
 ; IS__CGSCC_NPM-NEXT:  entry:
 ; IS__CGSCC_NPM-NEXT:    [[L:%.*]] = alloca i32, align 4
 ; IS__CGSCC_NPM-NEXT:    [[I:%.*]] = bitcast i32* [[L]] to i8*
-; IS__CGSCC_NPM-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 4, i8* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[I]]) #[[ATTR8]]
+; IS__CGSCC_NPM-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 4, i8* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[I]]) #[[ATTR9]]
 ; IS__CGSCC_NPM-NEXT:    [[TOBOOL_NOT:%.*]] = icmp eq i32 [[CND]], 0
 ; IS__CGSCC_NPM-NEXT:    br i1 [[TOBOOL_NOT]], label [[COND_FALSE:%.*]], label [[COND_TRUE:%.*]]
 ; IS__CGSCC_NPM:       cond.true:
 ; IS__CGSCC_NPM-NEXT:    br label [[COND_END:%.*]]
 ; IS__CGSCC_NPM:       cond.false:
 ; IS__CGSCC_NPM-NEXT:    br label [[COND_END]]
 ; IS__CGSCC_NPM:       cond.end:
 ; IS__CGSCC_NPM-NEXT:    [[I2:%.*]] = bitcast i32* [[L]] to i8*
-; IS__CGSCC_NPM-NEXT:    call void @llvm.lifetime.end.p0i8(i64 noundef 4, i8* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[I2]]) #[[ATTR8]]
+; IS__CGSCC_NPM-NEXT:    call void @llvm.lifetime.end.p0i8(i64 noundef 4, i8* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[I2]]) #[[ATTR9]]
 ; IS__CGSCC_NPM-NEXT:    ret i32 5
 ;
 entry:
   %L = alloca i32, align 4
   %i = bitcast i32* %L to i8*
   call void @llvm.lifetime.start.p0i8(i64 4, i8* nonnull %i)
   store i32 5, i32* @GI1, align 4, !tbaa !3
   store i32 5, i32* %L, align 4, !tbaa !3

 ; IS__TUNIT_OPM-NEXT:    ret i32 5
 ;
 ; IS__TUNIT_NPM: Function Attrs: nofree nosync nounwind willreturn
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@multi_obj_simplifiable_2
 ; IS__TUNIT_NPM-SAME: (i32 [[CND:%.*]]) #[[ATTR2]] {
 ; IS__TUNIT_NPM-NEXT:  entry:
 ; IS__TUNIT_NPM-NEXT:    [[L:%.*]] = alloca i32, align 4
 ; IS__TUNIT_NPM-NEXT:    [[I:%.*]] = bitcast i32* [[L]] to i8*
-; IS__TUNIT_NPM-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 4, i8* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[I]]) #[[ATTR6]]
+; IS__TUNIT_NPM-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 4, i8* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[I]]) #[[ATTR7]]
 ; IS__TUNIT_NPM-NEXT:    [[TOBOOL_NOT:%.*]] = icmp eq i32 [[CND]], 0
 ; IS__TUNIT_NPM-NEXT:    br i1 [[TOBOOL_NOT]], label [[COND_FALSE:%.*]], label [[COND_TRUE:%.*]]
 ; IS__TUNIT_NPM:       cond.true:
 ; IS__TUNIT_NPM-NEXT:    br label [[COND_END:%.*]]
 ; IS__TUNIT_NPM:       cond.false:
 ; IS__TUNIT_NPM-NEXT:    br label [[COND_END]]
 ; IS__TUNIT_NPM:       cond.end:
 ; IS__TUNIT_NPM-NEXT:    [[I1:%.*]] = bitcast i32* [[L]] to i8*
-; IS__TUNIT_NPM-NEXT:    call void @llvm.lifetime.end.p0i8(i64 noundef 4, i8* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[I1]]) #[[ATTR6]]
+; IS__TUNIT_NPM-NEXT:    call void @llvm.lifetime.end.p0i8(i64 noundef 4, i8* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[I1]]) #[[ATTR7]]
 ; IS__TUNIT_NPM-NEXT:    ret i32 5
 ;
 ; IS__CGSCC_OPM: Function Attrs: nofree nosync nounwind willreturn
 ; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@multi_obj_simplifiable_2
 ; IS__CGSCC_OPM-SAME: (i32 [[CND:%.*]]) #[[ATTR3]] {
 ; IS__CGSCC_OPM-NEXT:  entry:
 ; IS__CGSCC_OPM-NEXT:    [[L:%.*]] = alloca i32, align 4
 ; IS__CGSCC_OPM-NEXT:    [[I:%.*]] = bitcast i32* [[L]] to i8*

 ; IS__CGSCC_OPM-NEXT:    ret i32 5
 ;
 ; IS__CGSCC_NPM: Function Attrs: nofree nosync nounwind willreturn
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@multi_obj_simplifiable_2
 ; IS__CGSCC_NPM-SAME: (i32 [[CND:%.*]]) #[[ATTR3]] {
 ; IS__CGSCC_NPM-NEXT:  entry:
 ; IS__CGSCC_NPM-NEXT:    [[L:%.*]] = alloca i32, align 4
 ; IS__CGSCC_NPM-NEXT:    [[I:%.*]] = bitcast i32* [[L]] to i8*
-; IS__CGSCC_NPM-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 4, i8* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[I]]) #[[ATTR8]]
+; IS__CGSCC_NPM-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 4, i8* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[I]]) #[[ATTR9]]
 ; IS__CGSCC_NPM-NEXT:    [[TOBOOL_NOT:%.*]] = icmp eq i32 [[CND]], 0
 ; IS__CGSCC_NPM-NEXT:    br i1 [[TOBOOL_NOT]], label [[COND_FALSE:%.*]], label [[COND_TRUE:%.*]]
 ; IS__CGSCC_NPM:       cond.true:
 ; IS__CGSCC_NPM-NEXT:    br label [[COND_END:%.*]]
 ; IS__CGSCC_NPM:       cond.false:
 ; IS__CGSCC_NPM-NEXT:    br label [[COND_END]]
 ; IS__CGSCC_NPM:       cond.end:
 ; IS__CGSCC_NPM-NEXT:    [[I1:%.*]] = bitcast i32* [[L]] to i8*
-; IS__CGSCC_NPM-NEXT:    call void @llvm.lifetime.end.p0i8(i64 noundef 4, i8* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[I1]]) #[[ATTR8]]
+; IS__CGSCC_NPM-NEXT:    call void @llvm.lifetime.end.p0i8(i64 noundef 4, i8* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[I1]]) #[[ATTR9]]
 ; IS__CGSCC_NPM-NEXT:    ret i32 5
 ;
 entry:
   %L = alloca i32, align 4
   %i = bitcast i32* %L to i8*
   call void @llvm.lifetime.start.p0i8(i64 4, i8* nonnull %i)
   %tobool.not = icmp eq i32 %cnd, 0
   br i1 %tobool.not, label %cond.false, label %cond.true

 ; IS__CGSCC_OPM-NEXT:    [[I3:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[AGG_RESULT]], i64 0, i32 2
 ; IS__CGSCC_OPM-NEXT:    store i32 [[ADD2]], i32* [[I3]], align 4, !tbaa [[TBAA14]]
 ; IS__CGSCC_OPM-NEXT:    ret void
 ;
 ; IS__CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind willreturn writeonly
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@static_global_simplifiable_1
 ; IS__CGSCC_NPM-SAME: (%struct.S* noalias nocapture nofree nonnull writeonly sret([[STRUCT_S:%.*]]) align 4 dereferenceable(24) [[AGG_RESULT:%.*]]) #[[ATTR4:[0-9]+]] {
 ; IS__CGSCC_NPM-NEXT:  entry:
-; IS__CGSCC_NPM-NEXT:    call void @write_arg(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(24) getelementptr inbounds ([[STRUCT_S]], %struct.S* @Gs1, i32 0, i32 0), i32 noundef 1) #[[ATTR9]]
-; IS__CGSCC_NPM-NEXT:    call void @write_arg(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(20) getelementptr inbounds ([[STRUCT_S]], %struct.S* @Gs1, i64 0, i32 1), i32 noundef 2) #[[ATTR9]]
-; IS__CGSCC_NPM-NEXT:    call void @write_arg(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(16) getelementptr inbounds ([[STRUCT_S]], %struct.S* @Gs1, i64 0, i32 2), i32 noundef 3) #[[ATTR9]]
+; IS__CGSCC_NPM-NEXT:    call void @write_arg(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(24) getelementptr inbounds ([[STRUCT_S]], %struct.S* @Gs1, i32 0, i32 0), i32 noundef 1) #[[ATTR10]]
+; IS__CGSCC_NPM-NEXT:    call void @write_arg(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(20) getelementptr inbounds ([[STRUCT_S]], %struct.S* @Gs1, i64 0, i32 1), i32 noundef 2) #[[ATTR10]]
+; IS__CGSCC_NPM-NEXT:    call void @write_arg(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(16) getelementptr inbounds ([[STRUCT_S]], %struct.S* @Gs1, i64 0, i32 2), i32 noundef 3) #[[ATTR10]]
 ; IS__CGSCC_NPM-NEXT:    [[F1:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[AGG_RESULT]], i64 0, i32 3
 ; IS__CGSCC_NPM-NEXT:    store float 0x3FF19999A0000000, float* [[F1]], align 4, !tbaa [[TBAA7]]
 ; IS__CGSCC_NPM-NEXT:    [[MUL:%.*]] = fmul float 0x40019999A0000000, 2.000000e+00
 ; IS__CGSCC_NPM-NEXT:    [[F2:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[AGG_RESULT]], i64 0, i32 4
 ; IS__CGSCC_NPM-NEXT:    store float [[MUL]], float* [[F2]], align 4, !tbaa [[TBAA10]]
 ; IS__CGSCC_NPM-NEXT:    [[ADD:%.*]] = fadd float 0x400A666660000000, 0x3FF19999A0000000
 ; IS__CGSCC_NPM-NEXT:    [[F3:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[AGG_RESULT]], i64 0, i32 5
 ; IS__CGSCC_NPM-NEXT:    store float [[ADD]], float* [[F3]], align 4, !tbaa [[TBAA11]]

 ; IS__CGSCC_NPM-NEXT:    [[ARRAYIDX20:%.*]] = getelementptr inbounds i64, i64* bitcast ([1024 x i8]* @GBytes to i64*), i64 [[I18]]
 ; IS__CGSCC_NPM-NEXT:    store i64 0, i64* [[ARRAYIDX20]], align 16, !tbaa [[TBAA20]]
 ; IS__CGSCC_NPM-NEXT:    br label [[FOR_INC21]]
 ; IS__CGSCC_NPM:       for.inc21:
 ; IS__CGSCC_NPM-NEXT:    [[INDVARS_IV_NEXT8]] = add nuw nsw i64 [[INDVARS_IV7]], 1
 ; IS__CGSCC_NPM-NEXT:    br label [[FOR_COND13]], !llvm.loop [[LOOP26:![0-9]+]]
 ; IS__CGSCC_NPM:       for.end23:
 ; IS__CGSCC_NPM-NEXT:    store i8 0, i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @GBytes, i64 0, i64 1023), align 1, !tbaa [[TBAA15]]
-; IS__CGSCC_NPM-NEXT:    call void @write_arg(i32* nofree noundef nonnull writeonly align 4 dereferenceable(4) bitcast (i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @GBytes, i64 0, i64 500) to i32*), i32 noundef 0) #[[ATTR10]]
+; IS__CGSCC_NPM-NEXT:    call void @write_arg(i32* nofree noundef nonnull writeonly align 4 dereferenceable(4) bitcast (i8* getelementptr inbounds ([1024 x i8], [1024 x i8]* @GBytes, i64 0, i64 500) to i32*), i32 noundef 0) #[[ATTR11]]
 ; IS__CGSCC_NPM-NEXT:    br label [[FOR_COND25:%.*]]
 ; IS__CGSCC_NPM:       for.cond25:
 ; IS__CGSCC_NPM-NEXT:    [[INDVARS_IV12:%.*]] = phi i64 [ [[INDVARS_IV_NEXT13:%.*]], [[FOR_INC33:%.*]] ], [ 0, [[FOR_END23]] ]
 ; IS__CGSCC_NPM-NEXT:    [[EXITCOND14:%.*]] = icmp ne i64 [[INDVARS_IV12]], 1024
 ; IS__CGSCC_NPM-NEXT:    br i1 [[EXITCOND14]], label [[FOR_BODY28:%.*]], label [[FOR_COND_CLEANUP27:%.*]]
 ; IS__CGSCC_NPM:       for.cond.cleanup27:
 ; IS__CGSCC_NPM-NEXT:    br label [[FOR_END35:%.*]]
 ; IS__CGSCC_NPM:       for.body28:

 ; IS__CGSCC_NPM-NEXT:  entry:
 ; IS__CGSCC_NPM-NEXT:    [[F1:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[S]], i64 0, i32 3
 ; IS__CGSCC_NPM-NEXT:    store float 0x3FF19999A0000000, float* [[F1]], align 4, !tbaa [[TBAA7]]
 ; IS__CGSCC_NPM-NEXT:    [[F2:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[S]], i64 0, i32 4
 ; IS__CGSCC_NPM-NEXT:    store float 0x40019999A0000000, float* [[F2]], align 8, !tbaa [[TBAA10]]
 ; IS__CGSCC_NPM-NEXT:    [[F3:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[S]], i64 0, i32 5
 ; IS__CGSCC_NPM-NEXT:    store float 0x400A666660000000, float* [[F3]], align 4, !tbaa [[TBAA11]]
 ; IS__CGSCC_NPM-NEXT:    [[I1:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[S]], i64 0, i32 0
-; IS__CGSCC_NPM-NEXT:    call void @write_arg(i32* nocapture nofree noundef nonnull writeonly align 8 dereferenceable(24) [[I1]], i32 noundef 1) #[[ATTR9]]
+; IS__CGSCC_NPM-NEXT:    call void @write_arg(i32* nocapture nofree noundef nonnull writeonly align 8 dereferenceable(24) [[I1]], i32 noundef 1) #[[ATTR10]]
 ; IS__CGSCC_NPM-NEXT:    [[I2:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[S]], i64 0, i32 1
-; IS__CGSCC_NPM-NEXT:    call void @write_arg(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(20) [[I2]], i32 noundef 2) #[[ATTR9]]
+; IS__CGSCC_NPM-NEXT:    call void @write_arg(i32* nocapture nofree noundef nonnull writeonly align 4 dereferenceable(20) [[I2]], i32 noundef 2) #[[ATTR10]]
 ; IS__CGSCC_NPM-NEXT:    [[I3:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[S]], i64 0, i32 2
-; IS__CGSCC_NPM-NEXT:    call void @write_arg(i32* nocapture nofree noundef nonnull writeonly align 8 dereferenceable(16) [[I3]], i32 noundef 3) #[[ATTR9]]
+; IS__CGSCC_NPM-NEXT:    call void @write_arg(i32* nocapture nofree noundef nonnull writeonly align 8 dereferenceable(16) [[I3]], i32 noundef 3) #[[ATTR10]]
 ; IS__CGSCC_NPM-NEXT:    [[F11:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[S]], i64 0, i32 3
 ; IS__CGSCC_NPM-NEXT:    [[I:%.*]] = load float, float* [[F11]], align 4, !tbaa [[TBAA7]]
 ; IS__CGSCC_NPM-NEXT:    [[F12:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[AGG_RESULT]], i64 0, i32 3
 ; IS__CGSCC_NPM-NEXT:    store float [[I]], float* [[F12]], align 4, !tbaa [[TBAA7]]
 ; IS__CGSCC_NPM-NEXT:    [[F23:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[S]], i64 0, i32 4
 ; IS__CGSCC_NPM-NEXT:    [[I4:%.*]] = load float, float* [[F23]], align 8, !tbaa [[TBAA10]]
 ; IS__CGSCC_NPM-NEXT:    [[MUL:%.*]] = fmul float [[I4]], 2.000000e+00
 ; IS__CGSCC_NPM-NEXT:    [[F24:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.S* [[AGG_RESULT]], i64 0, i32 4

 ; IS__CGSCC_NPM:       for.inc21:
 ; IS__CGSCC_NPM-NEXT:    [[INDVARS_IV_NEXT8]] = add nuw nsw i64 [[INDVARS_IV7]], 1
 ; IS__CGSCC_NPM-NEXT:    br label [[FOR_COND13]], !llvm.loop [[LOOP30:![0-9]+]]
 ; IS__CGSCC_NPM:       for.end23:
 ; IS__CGSCC_NPM-NEXT:    [[ARRAYIDX24:%.*]] = getelementptr inbounds i8, i8* [[BYTES]], i64 1023
 ; IS__CGSCC_NPM-NEXT:    store i8 0, i8* [[ARRAYIDX24]], align 1, !tbaa [[TBAA15]]
 ; IS__CGSCC_NPM-NEXT:    [[ARRAYIDX25:%.*]] = getelementptr inbounds i8, i8* [[BYTES]], i64 500
 ; IS__CGSCC_NPM-NEXT:    [[I21:%.*]] = bitcast i8* [[ARRAYIDX25]] to i32*
-; IS__CGSCC_NPM-NEXT:    call void @write_arg(i32* nofree noundef nonnull writeonly align 4 dereferenceable(4) [[I21]], i32 noundef 0) #[[ATTR10]]
+; IS__CGSCC_NPM-NEXT:    call void @write_arg(i32* nofree noundef nonnull writeonly align 4 dereferenceable(4) [[I21]], i32 noundef 0) #[[ATTR11]]
 ; IS__CGSCC_NPM-NEXT:    br label [[FOR_COND27:%.*]]
 ; IS__CGSCC_NPM:       for.cond27:
 ; IS__CGSCC_NPM-NEXT:    [[INDVARS_IV12:%.*]] = phi i64 [ [[INDVARS_IV_NEXT13:%.*]], [[FOR_INC35:%.*]] ], [ 0, [[FOR_END23]] ]
 ; IS__CGSCC_NPM-NEXT:    [[EXITCOND14:%.*]] = icmp ne i64 [[INDVARS_IV12]], 1024
 ; IS__CGSCC_NPM-NEXT:    br i1 [[EXITCOND14]], label [[FOR_BODY30:%.*]], label [[FOR_COND_CLEANUP29:%.*]]
 ; IS__CGSCC_NPM:       for.cond.cleanup29:
 ; IS__CGSCC_NPM-NEXT:    br label [[FOR_END37:%.*]]
 ; IS__CGSCC_NPM:       for.body30:

 ; IS__TUNIT_OPM-NEXT:    call void @llvm.lifetime.end.p0i8(i64 noundef 4, i8* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[I6]])
 ; IS__TUNIT_OPM-NEXT:    ret i32 [[ADD1]]
 ;
 ; IS__TUNIT_NPM-LABEL: define {{[^@]+}}@local_alloca_not_simplifiable_1() {
 ; IS__TUNIT_NPM-NEXT:  entry:
 ; IS__TUNIT_NPM-NEXT:    [[X:%.*]] = alloca i32, align 4
 ; IS__TUNIT_NPM-NEXT:    [[Y:%.*]] = alloca i32, align 4
 ; IS__TUNIT_NPM-NEXT:    [[I:%.*]] = bitcast i32* [[X]] to i8*
-; IS__TUNIT_NPM-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 4, i8* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[I]]) #[[ATTR6]]
+; IS__TUNIT_NPM-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 4, i8* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[I]]) #[[ATTR7]]
 ; IS__TUNIT_NPM-NEXT:    [[I1:%.*]] = bitcast i32* [[Y]] to i8*
-; IS__TUNIT_NPM-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 4, i8* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[I1]]) #[[ATTR6]]
+; IS__TUNIT_NPM-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 4, i8* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[I1]]) #[[ATTR7]]
 ; IS__TUNIT_NPM-NEXT:    store i32 1, i32* [[Y]], align 4, !tbaa [[TBAA3]]
 ; IS__TUNIT_NPM-NEXT:    store i32 1, i32* [[X]], align 4, !tbaa [[TBAA3]]
 ; IS__TUNIT_NPM-NEXT:    [[I2:%.*]] = bitcast i32* [[X]] to i8*
 ; IS__TUNIT_NPM-NEXT:    call void @escape(i8* noundef nonnull align 4 dereferenceable(4) [[I2]])
 ; IS__TUNIT_NPM-NEXT:    call void @write_random(i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[Y]])
 ; IS__TUNIT_NPM-NEXT:    [[I3:%.*]] = load i32, i32* [[X]], align 4, !tbaa [[TBAA3]]
 ; IS__TUNIT_NPM-NEXT:    [[TOBOOL_NOT:%.*]] = icmp eq i32 [[I3]], 0
 ; IS__TUNIT_NPM-NEXT:    [[COND:%.*]] = select i1 [[TOBOOL_NOT]], i32 2, i32 1

 ; IS__CGSCC_OPM-NEXT:    call void @llvm.lifetime.end.p0i8(i64 noundef 4, i8* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[I6]])
 ; IS__CGSCC_OPM-NEXT:    ret i32 [[ADD1]]
 ;
 ; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@local_alloca_not_simplifiable_1() {
 ; IS__CGSCC_NPM-NEXT:  entry:
 ; IS__CGSCC_NPM-NEXT:    [[X:%.*]] = alloca i32, align 4
 ; IS__CGSCC_NPM-NEXT:    [[Y:%.*]] = alloca i32, align 4
 ; IS__CGSCC_NPM-NEXT:    [[I:%.*]] = bitcast i32* [[X]] to i8*
-; IS__CGSCC_NPM-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 4, i8* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[I]]) #[[ATTR8]]
+; IS__CGSCC_NPM-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 4, i8* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[I]]) #[[ATTR9]]
 ; IS__CGSCC_NPM-NEXT:    [[I1:%.*]] = bitcast i32* [[Y]] to i8*
-; IS__CGSCC_NPM-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 4, i8* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[I1]]) #[[ATTR8]]
+; IS__CGSCC_NPM-NEXT:    call void @llvm.lifetime.start.p0i8(i64 noundef 4, i8* nocapture nofree noundef nonnull align 4 dereferenceable(4) [[I1]]) #[[ATTR9]]
 ; IS__CGSCC_NPM-NEXT:    store i32 1, i32* [[Y]], align 4, !tbaa [[TBAA3]]
 ; IS__CGSCC_NPM-NEXT:    store i32 1, i32* [[X]], align 4, !tbaa [[TBAA3]]
 ; IS__CGSCC_NPM-NEXT:    [[I2:%.*]] = bitcast i32* [[X]] to i8*
 ; IS__CGSCC_NPM-NEXT:    call void @escape(i8* noundef nonnull align 4 dereferenceable(4) [[I2]])
 ; IS__CGSCC_NPM-NEXT:    call void @write_random(i32* noalias nocapture nofree noundef nonnull writeonly align 4 dereferenceable(4) [[Y]])
 ; IS__CGSCC_NPM-NEXT:    [[I3:%.*]] = load i32, i32* [[X]], align 4, !tbaa [[TBAA3]]
 ; IS__CGSCC_NPM-NEXT:    [[TOBOOL_NOT:%.*]] = icmp eq i32 [[I3]], 0
 ; IS__CGSCC_NPM-NEXT:    [[COND:%.*]] = select i1 [[TOBOOL_NOT]], i32 2, i32 1

 ; IS__CGSCC____-NEXT:    ret i64 [[L]]
 ;
   store i32 42, i32* @bytes2
   %bc = bitcast i32* @bytes2 to i64*
   %l = load i64, i64* %bc
   ret i64 %l
 }
 
+define void @recursive_load_store(i64 %N, i32 %v) {
+; IS__TUNIT____: Function Attrs: nofree nosync nounwind writeonly
+; IS__TUNIT____-LABEL: define {{[^@]+}}@recursive_load_store
+; IS__TUNIT____-SAME: (i64 [[N:%.*]], i32 [[V:%.*]]) #[[ATTR6:[0-9]+]] {
+; IS__TUNIT____-NEXT:  entry:
+; IS__TUNIT____-NEXT:    br label [[FOR_COND:%.*]]
+; IS__TUNIT____:       for.cond:
+; IS__TUNIT____-NEXT:    [[INDVARS_IV:%.*]] = phi i64 [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY:%.*]] ], [ 0, [[ENTRY:%.*]] ]
+; IS__TUNIT____-NEXT:    [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV]], [[N]]
+; IS__TUNIT____-NEXT:    br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_END:%.*]]
+; IS__TUNIT____:       for.body:
+; IS__TUNIT____-NEXT:    [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
+; IS__TUNIT____-NEXT:    br label [[FOR_COND]]
+; IS__TUNIT____:       for.end:
+; IS__TUNIT____-NEXT:    ret void
+;
+; IS__CGSCC_OPM: Function Attrs: nofree norecurse nosync nounwind writeonly
+; IS__CGSCC_OPM-LABEL: define {{[^@]+}}@recursive_load_store
+; IS__CGSCC_OPM-SAME: (i64 [[N:%.*]], i32 [[V:%.*]]) #[[ATTR10]] {
+; IS__CGSCC_OPM-NEXT:  entry:
+; IS__CGSCC_OPM-NEXT:    br label [[FOR_COND:%.*]]
+; IS__CGSCC_OPM:       for.cond:
+; IS__CGSCC_OPM-NEXT:    [[INDVARS_IV:%.*]] = phi i64 [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY:%.*]] ], [ 0, [[ENTRY:%.*]] ]
+; IS__CGSCC_OPM-NEXT:    [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV]], [[N]]
+; IS__CGSCC_OPM-NEXT:    br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_END:%.*]]
+; IS__CGSCC_OPM:       for.body:
+; IS__CGSCC_OPM-NEXT:    [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
+; IS__CGSCC_OPM-NEXT:    br label [[FOR_COND]]
+; IS__CGSCC_OPM:       for.end:
+; IS__CGSCC_OPM-NEXT:    ret void
+;
+; IS__CGSCC_NPM: Function Attrs: nofree norecurse nosync nounwind writeonly
+; IS__CGSCC_NPM-LABEL: define {{[^@]+}}@recursive_load_store
+; IS__CGSCC_NPM-SAME: (i64 [[N:%.*]], i32 [[V:%.*]]) #[[ATTR8:[0-9]+]] {
+; IS__CGSCC_NPM-NEXT:  entry:
+; IS__CGSCC_NPM-NEXT:    br label [[FOR_COND:%.*]]
+; IS__CGSCC_NPM:       for.cond:
+; IS__CGSCC_NPM-NEXT:    [[INDVARS_IV:%.*]] = phi i64 [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY:%.*]] ], [ 0, [[ENTRY:%.*]] ]
+; IS__CGSCC_NPM-NEXT:    [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV]], [[N]]
+; IS__CGSCC_NPM-NEXT:    br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_END:%.*]]
+; IS__CGSCC_NPM:       for.body:
+; IS__CGSCC_NPM-NEXT:    [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
+; IS__CGSCC_NPM-NEXT:    br label [[FOR_COND]]
+; IS__CGSCC_NPM:       for.end:
+; IS__CGSCC_NPM-NEXT:    ret void
+;
+entry:
+  store i32 %v, i32* @rec_storage
+  br label %for.cond
+
+for.cond:
+  %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
+  %exitcond = icmp ne i64 %indvars.iv, %N
+  br i1 %exitcond, label %for.body, label %for.end
+
+for.body:
+  %ll = load i32, i32* @rec_storage
+  store i32 %ll, i32* @rec_storage
+  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
+  br label %for.cond
+
+for.end:
+  %lr = load i32, i32* @rec_storage
+  store i32 %lr, i32* @rec_storage
+  ret void
+}
+
 !llvm.module.flags = !{!0, !1}
 !llvm.ident = !{!2}
 
 !0 = !{i32 1, !"wchar_size", i32 4}
 !1 = !{i32 7, !"uwtable", i32 1}
 !2 = !{!"clang version 13.0.0"}
 !3 = !{!4, !4, i64 0}
 !4 = !{!"int", !5, i64 0}

 ; IS__TUNIT_OPM: attributes #[[ATTR9]] = { willreturn }
 ;.
 ; IS__TUNIT_NPM: attributes #[[ATTR0]] = { argmemonly nofree nosync nounwind willreturn writeonly }
 ; IS__TUNIT_NPM: attributes #[[ATTR1]] = { argmemonly nofree nosync nounwind willreturn }
 ; IS__TUNIT_NPM: attributes #[[ATTR2]] = { nofree nosync nounwind willreturn }
 ; IS__TUNIT_NPM: attributes #[[ATTR3]] = { nofree nosync nounwind readnone willreturn }
 ; IS__TUNIT_NPM: attributes #[[ATTR4]] = { nofree nosync nounwind willreturn writeonly }
 ; IS__TUNIT_NPM: attributes #[[ATTR5]] = { nofree nosync nounwind readonly willreturn }
-; IS__TUNIT_NPM: attributes #[[ATTR6]] = { willreturn }
+; IS__TUNIT_NPM: attributes #[[ATTR6]] = { nofree nosync nounwind writeonly }
+; IS__TUNIT_NPM: attributes #[[ATTR7]] = { willreturn }
 ;.
 ; IS__CGSCC_OPM: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
 ; IS__CGSCC_OPM: attributes #[[ATTR1]] = { argmemonly nofree nosync nounwind willreturn }
 ; IS__CGSCC_OPM: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind readnone willreturn }
 ; IS__CGSCC_OPM: attributes #[[ATTR3]] = { nofree nosync nounwind willreturn }
 ; IS__CGSCC_OPM: attributes #[[ATTR4]] = { nofree norecurse nosync nounwind willreturn writeonly }
 ; IS__CGSCC_OPM: attributes #[[ATTR5]] = { nofree norecurse nosync nounwind willreturn }
 ; IS__CGSCC_OPM: attributes #[[ATTR6]] = { argmemonly nofree norecurse nosync nounwind willreturn }
 ; IS__CGSCC_OPM: attributes #[[ATTR7]] = { nofree norecurse nosync nounwind readonly willreturn }
 ; IS__CGSCC_OPM: attributes #[[ATTR8]] = { nofree norecurse nosync nounwind readnone }
 ; IS__CGSCC_OPM: attributes #[[ATTR9]] = { nofree norecurse nosync nounwind }
 ; IS__CGSCC_OPM: attributes #[[ATTR10]] = { nofree norecurse nosync nounwind writeonly }
 ; IS__CGSCC_OPM: attributes #[[ATTR11]] = { willreturn }
 ; IS__CGSCC_OPM: attributes #[[ATTR12]] = { nounwind willreturn writeonly }
 ; IS__CGSCC_OPM: attributes #[[ATTR13]] = { nounwind writeonly }
 ;.
 ; IS__CGSCC_NPM: attributes #[[ATTR0]] = { argmemonly nofree norecurse nosync nounwind willreturn writeonly }
 ; IS__CGSCC_NPM: attributes #[[ATTR1]] = { argmemonly nofree nosync nounwind willreturn }
 ; IS__CGSCC_NPM: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind readnone willreturn }
 ; IS__CGSCC_NPM: attributes #[[ATTR3]] = { nofree nosync nounwind willreturn }
 ; IS__CGSCC_NPM: attributes #[[ATTR4]] = { nofree norecurse nosync nounwind willreturn writeonly }
 ; IS__CGSCC_NPM: attributes #[[ATTR5]] = { nofree norecurse nosync nounwind willreturn }
 ; IS__CGSCC_NPM: attributes #[[ATTR6]] = { argmemonly nofree norecurse nosync nounwind willreturn }
 ; IS__CGSCC_NPM: attributes #[[ATTR7]] = { nofree norecurse nosync nounwind readonly willreturn }
-; IS__CGSCC_NPM: attributes #[[ATTR8]] = { willreturn }
-; IS__CGSCC_NPM: attributes #[[ATTR9]] = { nounwind willreturn writeonly }
-; IS__CGSCC_NPM: attributes #[[ATTR10]] = { nounwind writeonly }
+; IS__CGSCC_NPM: attributes #[[ATTR8]] = { nofree norecurse nosync nounwind writeonly }
+; IS__CGSCC_NPM: attributes #[[ATTR9]] = { willreturn }
+; IS__CGSCC_NPM: attributes #[[ATTR10]] = { nounwind willreturn writeonly }
+; IS__CGSCC_NPM: attributes #[[ATTR11]] = { nounwind writeonly }
 ;.
 ; IS__TUNIT____: [[META0:![0-9]+]] = !{i32 1, !"wchar_size", i32 4}
 ; IS__TUNIT____: [[META1:![0-9]+]] = !{i32 7, !"uwtable", i32 1}
 ; IS__TUNIT____: [[META2:![0-9]+]] = !{!"clang version 13.0.0"}
 ; IS__TUNIT____: [[TBAA3]] = !{!4, !4, i64 0}
 ; IS__TUNIT____: [[META4:![0-9]+]] = !{!"int", !5, i64 0}
 ; IS__TUNIT____: [[META5:![0-9]+]] = !{!"omnipotent char", !6, i64 0}
 ; IS__TUNIT____: [[META6:![0-9]+]] = !{!"Simple C/C++ TBAA"}