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[SCCP] Infer nuw for gep nusw with non-negative offsets #118819

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Dec 6, 2024
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[SCCP] Infer nuw for gep nusw with non-negative offsets #118819

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71 changes: 34 additions & 37 deletions clang/test/CodeGen/attr-counted-by.c
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Original file line number Diff line number Diff line change
Expand Up @@ -70,7 +70,7 @@ struct anon_struct {
// SANITIZE-WITH-ATTR-NEXT: unreachable, !nosanitize [[META2]]
// SANITIZE-WITH-ATTR: cont3:
// SANITIZE-WITH-ATTR-NEXT: [[ARRAY:%.*]] = getelementptr inbounds nuw i8, ptr [[P]], i64 12
// SANITIZE-WITH-ATTR-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [0 x i32], ptr [[ARRAY]], i64 0, i64 [[IDXPROM]]
// SANITIZE-WITH-ATTR-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds nuw [0 x i32], ptr [[ARRAY]], i64 0, i64 [[IDXPROM]]
// SANITIZE-WITH-ATTR-NEXT: store i32 [[VAL]], ptr [[ARRAYIDX]], align 4, !tbaa [[TBAA4:![0-9]+]]
// SANITIZE-WITH-ATTR-NEXT: ret void
//
Expand Down Expand Up @@ -282,46 +282,43 @@ size_t test3_bdos(struct annotated *p) {
// SANITIZE-WITH-ATTR-NEXT: [[TMP4:%.*]] = add i32 [[TMP3]], 244
// SANITIZE-WITH-ATTR-NEXT: [[TMP5:%.*]] = and i32 [[TMP4]], 252
// SANITIZE-WITH-ATTR-NEXT: [[CONV1:%.*]] = select i1 [[TMP2]], i32 [[TMP5]], i32 0
// SANITIZE-WITH-ATTR-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [0 x i32], ptr [[ARRAY]], i64 0, i64 [[IDXPROM]]
// SANITIZE-WITH-ATTR-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds nuw [0 x i32], ptr [[ARRAY]], i64 0, i64 [[IDXPROM]]
// SANITIZE-WITH-ATTR-NEXT: store i32 [[CONV1]], ptr [[ARRAYIDX]], align 4, !tbaa [[TBAA4]]
// SANITIZE-WITH-ATTR-NEXT: [[DOT_COUNTED_BY_LOAD6:%.*]] = load i32, ptr [[DOT_COUNTED_BY_GEP]], align 4
// SANITIZE-WITH-ATTR-NEXT: [[ADD:%.*]] = add nsw i32 [[INDEX]], 1
// SANITIZE-WITH-ATTR-NEXT: [[IDXPROM12:%.*]] = sext i32 [[ADD]] to i64
// SANITIZE-WITH-ATTR-NEXT: [[TMP6:%.*]] = zext i32 [[DOT_COUNTED_BY_LOAD6]] to i64, !nosanitize [[META2]]
// SANITIZE-WITH-ATTR-NEXT: [[TMP7:%.*]] = icmp ult i64 [[IDXPROM12]], [[TMP6]], !nosanitize [[META2]]
// SANITIZE-WITH-ATTR-NEXT: br i1 [[TMP7]], label [[CONT19:%.*]], label [[HANDLER_OUT_OF_BOUNDS15:%.*]], !prof [[PROF3]], !nosanitize [[META2]]
// SANITIZE-WITH-ATTR-NEXT: [[TMP6:%.*]] = icmp ult i64 [[IDXPROM12]], [[TMP0]], !nosanitize [[META2]]
// SANITIZE-WITH-ATTR-NEXT: br i1 [[TMP6]], label [[CONT19:%.*]], label [[HANDLER_OUT_OF_BOUNDS15:%.*]], !prof [[PROF3]], !nosanitize [[META2]]
// SANITIZE-WITH-ATTR: handler.out_of_bounds15:
// SANITIZE-WITH-ATTR-NEXT: tail call void @__ubsan_handle_out_of_bounds_abort(ptr nonnull @[[GLOB6:[0-9]+]], i64 [[IDXPROM12]]) #[[ATTR8]], !nosanitize [[META2]]
// SANITIZE-WITH-ATTR-NEXT: unreachable, !nosanitize [[META2]]
// SANITIZE-WITH-ATTR: cont19:
// SANITIZE-WITH-ATTR-NEXT: [[TMP8:%.*]] = icmp sgt i32 [[DOT_COUNTED_BY_LOAD6]], 3
// SANITIZE-WITH-ATTR-NEXT: [[TMP9:%.*]] = shl i32 [[DOT_COUNTED_BY_LOAD6]], 2
// SANITIZE-WITH-ATTR-NEXT: [[TMP10:%.*]] = add i32 [[TMP9]], 240
// SANITIZE-WITH-ATTR-NEXT: [[TMP11:%.*]] = and i32 [[TMP10]], 252
// SANITIZE-WITH-ATTR-NEXT: [[CONV8:%.*]] = select i1 [[TMP8]], i32 [[TMP11]], i32 0
// SANITIZE-WITH-ATTR-NEXT: [[ARRAYIDX17:%.*]] = getelementptr inbounds [0 x i32], ptr [[ARRAY]], i64 0, i64 [[IDXPROM12]]
// SANITIZE-WITH-ATTR-NEXT: [[TMP7:%.*]] = icmp sgt i32 [[DOT_COUNTED_BY_LOAD]], 3
// SANITIZE-WITH-ATTR-NEXT: [[TMP8:%.*]] = add i32 [[TMP3]], 240
// SANITIZE-WITH-ATTR-NEXT: [[TMP9:%.*]] = and i32 [[TMP8]], 252
// SANITIZE-WITH-ATTR-NEXT: [[CONV8:%.*]] = select i1 [[TMP7]], i32 [[TMP9]], i32 0
// SANITIZE-WITH-ATTR-NEXT: [[ARRAYIDX17:%.*]] = getelementptr inbounds nuw [0 x i32], ptr [[ARRAY]], i64 0, i64 [[IDXPROM12]]
// SANITIZE-WITH-ATTR-NEXT: store i32 [[CONV8]], ptr [[ARRAYIDX17]], align 4, !tbaa [[TBAA4]]
// SANITIZE-WITH-ATTR-NEXT: [[DOT_COUNTED_BY_LOAD21:%.*]] = load i32, ptr [[DOT_COUNTED_BY_GEP]], align 4
// SANITIZE-WITH-ATTR-NEXT: [[ADD27:%.*]] = add nsw i32 [[INDEX]], 2
// SANITIZE-WITH-ATTR-NEXT: [[IDXPROM28:%.*]] = sext i32 [[ADD27]] to i64
// SANITIZE-WITH-ATTR-NEXT: [[TMP12:%.*]] = zext i32 [[DOT_COUNTED_BY_LOAD21]] to i64, !nosanitize [[META2]]
// SANITIZE-WITH-ATTR-NEXT: [[TMP13:%.*]] = icmp ult i64 [[IDXPROM28]], [[TMP12]], !nosanitize [[META2]]
// SANITIZE-WITH-ATTR-NEXT: br i1 [[TMP13]], label [[CONT35:%.*]], label [[HANDLER_OUT_OF_BOUNDS31:%.*]], !prof [[PROF3]], !nosanitize [[META2]]
// SANITIZE-WITH-ATTR-NEXT: [[TMP10:%.*]] = zext i32 [[DOT_COUNTED_BY_LOAD21]] to i64, !nosanitize [[META2]]
// SANITIZE-WITH-ATTR-NEXT: [[TMP11:%.*]] = icmp ult i64 [[IDXPROM28]], [[TMP10]], !nosanitize [[META2]]
// SANITIZE-WITH-ATTR-NEXT: br i1 [[TMP11]], label [[CONT35:%.*]], label [[HANDLER_OUT_OF_BOUNDS31:%.*]], !prof [[PROF3]], !nosanitize [[META2]]
// SANITIZE-WITH-ATTR: handler.out_of_bounds31:
// SANITIZE-WITH-ATTR-NEXT: tail call void @__ubsan_handle_out_of_bounds_abort(ptr nonnull @[[GLOB7:[0-9]+]], i64 [[IDXPROM28]]) #[[ATTR8]], !nosanitize [[META2]]
// SANITIZE-WITH-ATTR-NEXT: unreachable, !nosanitize [[META2]]
// SANITIZE-WITH-ATTR: cont35:
// SANITIZE-WITH-ATTR-NEXT: [[ARRAYIDX33:%.*]] = getelementptr inbounds [0 x i32], ptr [[ARRAY]], i64 0, i64 [[IDXPROM28]]
// SANITIZE-WITH-ATTR-NEXT: [[TMP14:%.*]] = icmp sgt i32 [[FAM_IDX]], -1
// SANITIZE-WITH-ATTR-NEXT: [[TMP15:%.*]] = sext i32 [[DOT_COUNTED_BY_LOAD21]] to i64
// SANITIZE-WITH-ATTR-NEXT: [[TMP16:%.*]] = sext i32 [[FAM_IDX]] to i64
// SANITIZE-WITH-ATTR-NEXT: [[TMP17:%.*]] = sub nsw i64 [[TMP15]], [[TMP16]]
// SANITIZE-WITH-ATTR-NEXT: [[TMP18:%.*]] = icmp sgt i64 [[TMP17]], -1
// SANITIZE-WITH-ATTR-NEXT: [[TMP19:%.*]] = and i1 [[TMP14]], [[TMP18]]
// SANITIZE-WITH-ATTR-NEXT: [[DOTTR:%.*]] = trunc i64 [[TMP17]] to i32
// SANITIZE-WITH-ATTR-NEXT: [[TMP20:%.*]] = shl i32 [[DOTTR]], 2
// SANITIZE-WITH-ATTR-NEXT: [[TMP21:%.*]] = and i32 [[TMP20]], 252
// SANITIZE-WITH-ATTR-NEXT: [[CONV23:%.*]] = select i1 [[TMP19]], i32 [[TMP21]], i32 0
// SANITIZE-WITH-ATTR-NEXT: [[ARRAYIDX33:%.*]] = getelementptr inbounds nuw [0 x i32], ptr [[ARRAY]], i64 0, i64 [[IDXPROM28]]
// SANITIZE-WITH-ATTR-NEXT: [[TMP12:%.*]] = icmp sgt i32 [[FAM_IDX]], -1
// SANITIZE-WITH-ATTR-NEXT: [[TMP13:%.*]] = sext i32 [[DOT_COUNTED_BY_LOAD21]] to i64
// SANITIZE-WITH-ATTR-NEXT: [[TMP14:%.*]] = sext i32 [[FAM_IDX]] to i64
// SANITIZE-WITH-ATTR-NEXT: [[TMP15:%.*]] = sub nsw i64 [[TMP13]], [[TMP14]]
// SANITIZE-WITH-ATTR-NEXT: [[TMP16:%.*]] = icmp sgt i64 [[TMP15]], -1
// SANITIZE-WITH-ATTR-NEXT: [[TMP17:%.*]] = and i1 [[TMP12]], [[TMP16]]
// SANITIZE-WITH-ATTR-NEXT: [[DOTTR:%.*]] = trunc i64 [[TMP15]] to i32
// SANITIZE-WITH-ATTR-NEXT: [[TMP18:%.*]] = shl i32 [[DOTTR]], 2
// SANITIZE-WITH-ATTR-NEXT: [[TMP19:%.*]] = and i32 [[TMP18]], 252
// SANITIZE-WITH-ATTR-NEXT: [[CONV23:%.*]] = select i1 [[TMP17]], i32 [[TMP19]], i32 0
// SANITIZE-WITH-ATTR-NEXT: store i32 [[CONV23]], ptr [[ARRAYIDX33]], align 4, !tbaa [[TBAA4]]
// SANITIZE-WITH-ATTR-NEXT: ret void
//
Expand Down Expand Up @@ -625,7 +622,7 @@ size_t test6_bdos(struct anon_struct *p) {
// SANITIZE-WITH-ATTR-NEXT: unreachable, !nosanitize [[META2]]
// SANITIZE-WITH-ATTR: cont7:
// SANITIZE-WITH-ATTR-NEXT: [[INTS:%.*]] = getelementptr inbounds nuw i8, ptr [[P]], i64 9
// SANITIZE-WITH-ATTR-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [0 x i8], ptr [[INTS]], i64 0, i64 [[IDXPROM]]
// SANITIZE-WITH-ATTR-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds nuw [0 x i8], ptr [[INTS]], i64 0, i64 [[IDXPROM]]
// SANITIZE-WITH-ATTR-NEXT: store i8 -1, ptr [[ARRAYIDX]], align 1, !tbaa [[TBAA8:![0-9]+]]
// SANITIZE-WITH-ATTR-NEXT: ret void
//
Expand Down Expand Up @@ -698,7 +695,7 @@ size_t test7_bdos(struct union_of_fams *p) {
// SANITIZE-WITH-ATTR-NEXT: unreachable, !nosanitize [[META2]]
// SANITIZE-WITH-ATTR: cont7:
// SANITIZE-WITH-ATTR-NEXT: [[INTS:%.*]] = getelementptr inbounds nuw i8, ptr [[P]], i64 9
// SANITIZE-WITH-ATTR-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [0 x i8], ptr [[INTS]], i64 0, i64 [[IDXPROM]]
// SANITIZE-WITH-ATTR-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds nuw [0 x i8], ptr [[INTS]], i64 0, i64 [[IDXPROM]]
// SANITIZE-WITH-ATTR-NEXT: store i8 [[DOT_COUNTED_BY_LOAD]], ptr [[ARRAYIDX]], align 1, !tbaa [[TBAA8]]
// SANITIZE-WITH-ATTR-NEXT: ret void
//
Expand Down Expand Up @@ -779,7 +776,7 @@ size_t test8_bdos(struct union_of_fams *p) {
// SANITIZE-WITH-ATTR-NEXT: unreachable, !nosanitize [[META2]]
// SANITIZE-WITH-ATTR: cont7:
// SANITIZE-WITH-ATTR-NEXT: [[BYTES:%.*]] = getelementptr inbounds nuw i8, ptr [[P]], i64 12
// SANITIZE-WITH-ATTR-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [0 x i8], ptr [[BYTES]], i64 0, i64 [[IDXPROM]]
// SANITIZE-WITH-ATTR-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds nuw [0 x i8], ptr [[BYTES]], i64 0, i64 [[IDXPROM]]
// SANITIZE-WITH-ATTR-NEXT: store i8 -1, ptr [[ARRAYIDX]], align 1, !tbaa [[TBAA8]]
// SANITIZE-WITH-ATTR-NEXT: ret void
//
Expand Down Expand Up @@ -852,7 +849,7 @@ size_t test9_bdos(struct union_of_fams *p) {
// SANITIZE-WITH-ATTR-NEXT: unreachable, !nosanitize [[META2]]
// SANITIZE-WITH-ATTR: cont7:
// SANITIZE-WITH-ATTR-NEXT: [[BYTES:%.*]] = getelementptr inbounds nuw i8, ptr [[P]], i64 12
// SANITIZE-WITH-ATTR-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [0 x i8], ptr [[BYTES]], i64 0, i64 [[IDXPROM]]
// SANITIZE-WITH-ATTR-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds nuw [0 x i8], ptr [[BYTES]], i64 0, i64 [[IDXPROM]]
// SANITIZE-WITH-ATTR-NEXT: [[NARROW:%.*]] = tail call i32 @llvm.smax.i32(i32 [[DOT_COUNTED_BY_LOAD]], i32 0)
// SANITIZE-WITH-ATTR-NEXT: [[CONV:%.*]] = trunc i32 [[NARROW]] to i8
// SANITIZE-WITH-ATTR-NEXT: store i8 [[CONV]], ptr [[ARRAYIDX]], align 1, !tbaa [[TBAA8]]
Expand Down Expand Up @@ -939,7 +936,7 @@ size_t test10_bdos(struct union_of_fams *p) {
// SANITIZE-WITH-ATTR-NEXT: unreachable, !nosanitize [[META2]]
// SANITIZE-WITH-ATTR: cont3:
// SANITIZE-WITH-ATTR-NEXT: [[ARRAY:%.*]] = getelementptr inbounds nuw i8, ptr [[P]], i64 12
// SANITIZE-WITH-ATTR-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [0 x i32], ptr [[ARRAY]], i64 0, i64 [[IDXPROM]]
// SANITIZE-WITH-ATTR-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds nuw [0 x i32], ptr [[ARRAY]], i64 0, i64 [[IDXPROM]]
// SANITIZE-WITH-ATTR-NEXT: store i32 4, ptr [[ARRAYIDX]], align 4, !tbaa [[TBAA4]]
// SANITIZE-WITH-ATTR-NEXT: ret void
//
Expand Down Expand Up @@ -1130,7 +1127,7 @@ struct test13_bar {
// SANITIZE-WITH-ATTR-NEXT: unreachable, !nosanitize [[META2]]
// SANITIZE-WITH-ATTR: cont5:
// SANITIZE-WITH-ATTR-NEXT: [[REVMAP:%.*]] = getelementptr inbounds nuw i8, ptr [[TMP0]], i64 16
// SANITIZE-WITH-ATTR-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [0 x ptr], ptr [[REVMAP]], i64 0, i64 [[INDEX]]
// SANITIZE-WITH-ATTR-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds nuw [0 x ptr], ptr [[REVMAP]], i64 0, i64 [[INDEX]]
// SANITIZE-WITH-ATTR-NEXT: store ptr null, ptr [[ARRAYIDX]], align 8, !tbaa [[TBAA15:![0-9]+]]
// SANITIZE-WITH-ATTR-NEXT: ret i32 0
//
Expand All @@ -1157,7 +1154,7 @@ struct test13_bar {
// SANITIZE-WITHOUT-ATTR-NEXT: unreachable, !nosanitize [[META9]]
// SANITIZE-WITHOUT-ATTR: cont5:
// SANITIZE-WITHOUT-ATTR-NEXT: [[REVMAP:%.*]] = getelementptr inbounds nuw i8, ptr [[TMP0]], i64 16
// SANITIZE-WITHOUT-ATTR-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [0 x ptr], ptr [[REVMAP]], i64 0, i64 [[INDEX]]
// SANITIZE-WITHOUT-ATTR-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds nuw [0 x ptr], ptr [[REVMAP]], i64 0, i64 [[INDEX]]
// SANITIZE-WITHOUT-ATTR-NEXT: store ptr null, ptr [[ARRAYIDX]], align 8, !tbaa [[TBAA15:![0-9]+]]
// SANITIZE-WITHOUT-ATTR-NEXT: ret i32 0
//
Expand Down Expand Up @@ -1518,7 +1515,7 @@ struct test26_foo {
// SANITIZE-WITH-ATTR-NEXT: unreachable, !nosanitize [[META2]]
// SANITIZE-WITH-ATTR: cont5:
// SANITIZE-WITH-ATTR-NEXT: [[ARR:%.*]] = getelementptr inbounds nuw i8, ptr [[FOO]], i64 8
// SANITIZE-WITH-ATTR-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [0 x i32], ptr [[ARR]], i64 0, i64 [[IDXPROM]]
// SANITIZE-WITH-ATTR-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds nuw [0 x i32], ptr [[ARR]], i64 0, i64 [[IDXPROM]]
// SANITIZE-WITH-ATTR-NEXT: [[TMP2:%.*]] = load i32, ptr [[ARRAYIDX]], align 4, !tbaa [[TBAA4]]
// SANITIZE-WITH-ATTR-NEXT: ret i32 [[TMP2]]
//
Expand Down Expand Up @@ -1589,7 +1586,7 @@ struct test27_foo {
// SANITIZE-WITH-ATTR-NEXT: unreachable, !nosanitize [[META2]]
// SANITIZE-WITH-ATTR: cont3:
// SANITIZE-WITH-ATTR-NEXT: [[ENTRIES:%.*]] = getelementptr inbounds nuw i8, ptr [[P]], i64 24
// SANITIZE-WITH-ATTR-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [0 x ptr], ptr [[ENTRIES]], i64 0, i64 [[IDXPROM]]
// SANITIZE-WITH-ATTR-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds nuw [0 x ptr], ptr [[ENTRIES]], i64 0, i64 [[IDXPROM]]
// SANITIZE-WITH-ATTR-NEXT: [[TMP2:%.*]] = load ptr, ptr [[ARRAYIDX]], align 8, !tbaa [[TBAA19:![0-9]+]]
// SANITIZE-WITH-ATTR-NEXT: [[IDXPROM4:%.*]] = sext i32 [[J]] to i64
// SANITIZE-WITH-ATTR-NEXT: [[ARRAYIDX5:%.*]] = getelementptr inbounds [[STRUCT_TEST27_BAR:%.*]], ptr [[TMP2]], i64 [[IDXPROM4]]
Expand Down Expand Up @@ -1655,7 +1652,7 @@ struct test28_foo {
// SANITIZE-WITH-ATTR-NEXT: unreachable, !nosanitize [[META2]]
// SANITIZE-WITH-ATTR: cont17:
// SANITIZE-WITH-ATTR-NEXT: [[ARR:%.*]] = getelementptr inbounds nuw i8, ptr [[TMP2]], i64 12
// SANITIZE-WITH-ATTR-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [0 x i32], ptr [[ARR]], i64 0, i64 [[IDXPROM]]
// SANITIZE-WITH-ATTR-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds nuw [0 x i32], ptr [[ARR]], i64 0, i64 [[IDXPROM]]
// SANITIZE-WITH-ATTR-NEXT: [[TMP5:%.*]] = load i32, ptr [[ARRAYIDX]], align 4, !tbaa [[TBAA4]]
// SANITIZE-WITH-ATTR-NEXT: ret i32 [[TMP5]]
//
Expand Down Expand Up @@ -1729,7 +1726,7 @@ struct annotated_struct_array {
// SANITIZE-WITH-ATTR-NEXT: unreachable, !nosanitize [[META2]]
// SANITIZE-WITH-ATTR: cont20:
// SANITIZE-WITH-ATTR-NEXT: [[ARRAY:%.*]] = getelementptr inbounds nuw i8, ptr [[TMP2]], i64 12
// SANITIZE-WITH-ATTR-NEXT: [[ARRAYIDX18:%.*]] = getelementptr inbounds [0 x i32], ptr [[ARRAY]], i64 0, i64 [[IDXPROM15]]
// SANITIZE-WITH-ATTR-NEXT: [[ARRAYIDX18:%.*]] = getelementptr inbounds nuw [0 x i32], ptr [[ARRAY]], i64 0, i64 [[IDXPROM15]]
// SANITIZE-WITH-ATTR-NEXT: [[TMP5:%.*]] = tail call i32 @llvm.smax.i32(i32 [[DOT_COUNTED_BY_LOAD]], i32 0)
// SANITIZE-WITH-ATTR-NEXT: [[CONV:%.*]] = shl i32 [[TMP5]], 2
// SANITIZE-WITH-ATTR-NEXT: store i32 [[CONV]], ptr [[ARRAYIDX18]], align 4, !tbaa [[TBAA4]]
Expand Down
10 changes: 10 additions & 0 deletions llvm/lib/Transforms/Utils/SCCPSolver.cpp
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Expand Up @@ -147,6 +147,16 @@ static bool refineInstruction(SCCPSolver &Solver,
Changed = true;
}
}
} else if (auto *GEP = dyn_cast<GetElementPtrInst>(&Inst)) {
if (GEP->hasNoUnsignedWrap() || !GEP->hasNoUnsignedSignedWrap())
return false;

if (all_of(GEP->indices(),
[&](Value *V) { return GetRange(V).isAllNonNegative(); })) {
GEP->setNoWrapFlags(GEP->getNoWrapFlags() |
GEPNoWrapFlags::noUnsignedWrap());
Changed = true;
}
}

return Changed;
Expand Down
2 changes: 1 addition & 1 deletion llvm/test/Analysis/LazyCallGraph/blockaddress.ll
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Expand Up @@ -7,7 +7,7 @@ define i32 @baz(i32 %y, i1 %b) {
; CHECK-NEXT: br i1 [[B:%.*]], label [[LAB:%.*]], label [[FOR_COND:%.*]]
; CHECK: for.cond:
; CHECK-NEXT: [[P_0:%.*]] = phi ptr [ null, [[FOR_COND]] ], [ blockaddress(@baz, [[LAB]]), [[ENTRY:%.*]] ]
; CHECK-NEXT: [[INCDEC_PTR:%.*]] = getelementptr inbounds i8, ptr [[P_0]], i64 1
; CHECK-NEXT: [[INCDEC_PTR:%.*]] = getelementptr inbounds nuw i8, ptr [[P_0]], i64 1
; CHECK-NEXT: br label [[FOR_COND]]
; CHECK: lab:
; CHECK-NEXT: ret i32 0
Expand Down
6 changes: 3 additions & 3 deletions llvm/test/Transforms/SCCP/conditions-iter-order.ll
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Expand Up @@ -13,17 +13,17 @@ define internal ptr @spam(ptr %arg) {
; CHECK-NEXT: [[TMP:%.*]] = call ptr @malloc(i64 10368)
; CHECK-NEXT: [[TMP5:%.*]] = load i32, ptr [[ARG:%.*]], align 8
; CHECK-NEXT: [[TMP6:%.*]] = add i32 [[TMP5]], 1
; CHECK-NEXT: [[TMP7:%.*]] = getelementptr inbounds i32, ptr [[ARG]], i32 1
; CHECK-NEXT: [[TMP7:%.*]] = getelementptr inbounds nuw i32, ptr [[ARG]], i32 1
; CHECK-NEXT: [[TMP10:%.*]] = icmp ne ptr [[TMP7]], null
; CHECK-NEXT: br i1 [[TMP10]], label [[BB17:%.*]], label [[BB13:%.*]]
; CHECK: bb13:
; CHECK-NEXT: [[TMP14:%.*]] = getelementptr inbounds i32, ptr [[ARG]], i32 2
; CHECK-NEXT: [[TMP14:%.*]] = getelementptr inbounds nuw i32, ptr [[ARG]], i32 2
; CHECK-NEXT: [[TMP15:%.*]] = load i32, ptr [[TMP14]], align 8
; CHECK-NEXT: [[TMP16:%.*]] = add i32 [[TMP15]], 1
; CHECK-NEXT: br label [[BB30:%.*]]
; CHECK: bb17:
; CHECK-NEXT: [[TMP18:%.*]] = icmp eq i32 [[TMP6]], [[TMP5]]
; CHECK-NEXT: [[TMP19:%.*]] = getelementptr inbounds i32, ptr [[ARG]], i32 3
; CHECK-NEXT: [[TMP19:%.*]] = getelementptr inbounds nuw i32, ptr [[ARG]], i32 3
; CHECK-NEXT: [[TMP20:%.*]] = load i32, ptr [[TMP19]], align 8
; CHECK-NEXT: br i1 [[TMP18]], label [[BB30]], label [[BB13]]
; CHECK: bb30:
Expand Down
4 changes: 2 additions & 2 deletions llvm/test/Transforms/SCCP/gep-nuw.ll
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Expand Up @@ -6,7 +6,7 @@ define ptr @gep_nusw_nneg(ptr %p, i32 %x, i32 %y) {
; CHECK-SAME: ptr [[P:%.*]], i32 [[X:%.*]], i32 [[Y:%.*]]) {
; CHECK-NEXT: [[X_EXT:%.*]] = zext i32 [[X]] to i64
; CHECK-NEXT: [[Y_EXT:%.*]] = zext i32 [[Y]] to i64
; CHECK-NEXT: [[GEP:%.*]] = getelementptr nusw [1 x i8], ptr [[P]], i64 [[X_EXT]], i64 [[Y_EXT]]
; CHECK-NEXT: [[GEP:%.*]] = getelementptr nusw nuw [1 x i8], ptr [[P]], i64 [[X_EXT]], i64 [[Y_EXT]]
; CHECK-NEXT: ret ptr [[GEP]]
;
%x.ext = zext i32 %x to i64
Expand All @@ -20,7 +20,7 @@ define ptr @gep_inbounds_nneg(ptr %p, i32 %x, i32 %y) {
; CHECK-SAME: ptr [[P:%.*]], i32 [[X:%.*]], i32 [[Y:%.*]]) {
; CHECK-NEXT: [[X_EXT:%.*]] = zext i32 [[X]] to i64
; CHECK-NEXT: [[Y_EXT:%.*]] = zext i32 [[Y]] to i64
; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds [1 x i8], ptr [[P]], i64 [[X_EXT]], i64 [[Y_EXT]]
; CHECK-NEXT: [[GEP:%.*]] = getelementptr inbounds nuw [1 x i8], ptr [[P]], i64 [[X_EXT]], i64 [[Y_EXT]]
; CHECK-NEXT: ret ptr [[GEP]]
;
%x.ext = zext i32 %x to i64
Expand Down
4 changes: 2 additions & 2 deletions llvm/test/Transforms/SCCP/ipsccp-ssa-copy-nested-conds.ll
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Expand Up @@ -15,11 +15,11 @@ define i32 @check(ptr %node) {
; CHECK: if.end:
; CHECK-NEXT: [[TMP0:%.*]] = load ptr, ptr [[NODE]], align 8
; CHECK-NEXT: [[CALL:%.*]] = call i32 @check(ptr [[TMP0]])
; CHECK-NEXT: [[RIGHT:%.*]] = getelementptr inbounds [[STRUCT_NODE:%.*]], ptr [[NODE]], i32 0, i32 1
; CHECK-NEXT: [[RIGHT:%.*]] = getelementptr inbounds nuw [[STRUCT_NODE:%.*]], ptr [[NODE]], i32 0, i32 1
; CHECK-NEXT: [[TMP1:%.*]] = load ptr, ptr [[RIGHT]], align 8
; CHECK-NEXT: [[CALL1:%.*]] = call i32 @check(ptr [[TMP1]])
; CHECK-NEXT: [[TMP2:%.*]] = load ptr, ptr [[RIGHT]], align 8
; CHECK-NEXT: [[HEIGHT:%.*]] = getelementptr inbounds [[STRUCT_NODE]], ptr [[TMP2]], i32 0, i32 2
; CHECK-NEXT: [[HEIGHT:%.*]] = getelementptr inbounds nuw [[STRUCT_NODE]], ptr [[TMP2]], i32 0, i32 2
; CHECK-NEXT: [[TMP3:%.*]] = load i32, ptr [[HEIGHT]], align 4
; CHECK-NEXT: [[CMP3:%.*]] = icmp ne i32 [[TMP3]], [[CALL1]]
; CHECK-NEXT: br i1 [[CMP3]], label [[IF_THEN4:%.*]], label [[IF_END5:%.*]]
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4 changes: 2 additions & 2 deletions llvm/test/Transforms/SCCP/pr45185-range-predinfo.ll
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Original file line number Diff line number Diff line change
Expand Up @@ -8,9 +8,9 @@ define void @spam(ptr %arg) {
; CHECK-SAME: ptr [[ARG:%.*]]) {
; CHECK-NEXT: [[BB:.*:]]
; CHECK-NEXT: call void @blam(i32 0, ptr nonnull [[ARG]])
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds [4 x [24 x float]], ptr [[ARG]], i64 0, i64 1, i64 0
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds nuw [4 x [24 x float]], ptr [[ARG]], i64 0, i64 1, i64 0
; CHECK-NEXT: call void @blam(i32 1, ptr nonnull [[TMP1]])
; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds [4 x [24 x float]], ptr [[ARG]], i64 0, i64 2, i64 0
; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds nuw [4 x [24 x float]], ptr [[ARG]], i64 0, i64 2, i64 0
; CHECK-NEXT: call void @blam(i32 2, ptr nonnull [[TMP2]])
; CHECK-NEXT: ret void
;
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