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[CHERI] Prefer to lower subobject bounds calculations as cap_top - cap_addr. #216

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Aug 9, 2025
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[CHERI] Prefer to lower subobject bounds calculations as cap_top - cap_addr. #216

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16 changes: 9 additions & 7 deletions clang/lib/CodeGen/CGExpr.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -755,13 +755,15 @@ tightenCHERIBounds(CodeGenFunction &CGF, SubObjectBoundsKind Kind,
SizeStr = TBR.Size ? ("min(" + Twine(*TBR.Size) + ", remaining)").str()
: "remaining";
auto SrcAsI8 = CGF.Builder.CreateBitCast(ValueToBound, CGF.Int8CheriCapTy);
auto Offset = CGF.Builder.CreateIntrinsic(
llvm::Intrinsic::cheri_cap_offset_get, CGF.PtrDiffTy, SrcAsI8, nullptr,
"cur_offset");
SrcLength =
CGF.Builder.CreateIntrinsic(llvm::Intrinsic::cheri_cap_length_get,
CGF.PtrDiffTy, SrcAsI8, nullptr, "cur_len");
SetBoundsSize = CGF.Builder.CreateSub(SrcLength, Offset, "remaining_bytes");
// CHERIoT does not directly implement cheri_cap_offset_get, so it's better
// to lower the bounds in terms of cheri_cap_top_get / cheri_cap_addr_get.
auto Top =
CGF.Builder.CreateIntrinsic(llvm::Intrinsic::cheri_cap_top_get,
CGF.PtrDiffTy, SrcAsI8, nullptr, "cur_top");
auto Addr = CGF.Builder.CreateIntrinsic(
llvm::Intrinsic::cheri_cap_address_get, CGF.PtrDiffTy, SrcAsI8, nullptr,
"cur_addr");
SetBoundsSize = CGF.Builder.CreateSub(Top, Addr, "remaining_bytes");
if (TBR.Size) {
auto MaxConst = llvm::ConstantInt::get(CGF.PtrDiffTy, *TBR.Size);
auto LessThanMax = CGF.Builder.CreateICmpULT(SetBoundsSize, MaxConst,
Expand Down
18 changes: 9 additions & 9 deletions clang/test/CodeGen/cheri/subobject-bounds-addrof-array.c
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Original file line number Diff line number Diff line change
Expand Up @@ -436,23 +436,23 @@ extern int bhnd_sprom_layouts[];

// AGGRESSIVE-OR-LESS-LABEL: @test_unsized_global_array(
// AGGRESSIVE-OR-LESS-NEXT: entry:
// AGGRESSIVE-OR-LESS-NEXT: [[CUR_OFFSET:%.*]] = call i64 @llvm.cheri.cap.offset.get.i64(ptr addrspace(200) @bhnd_sprom_layouts)
// AGGRESSIVE-OR-LESS-NEXT: [[CUR_LEN:%.*]] = call i64 @llvm.cheri.cap.length.get.i64(ptr addrspace(200) @bhnd_sprom_layouts)
// AGGRESSIVE-OR-LESS-NEXT: [[REMAINING_BYTES:%.*]] = sub i64 [[CUR_LEN]], [[CUR_OFFSET]]
// AGGRESSIVE-OR-LESS-NEXT: [[CUR_TOP:%.*]] = call i64 @llvm.cheri.cap.top.get.i64(ptr addrspace(200) @bhnd_sprom_layouts)
// AGGRESSIVE-OR-LESS-NEXT: [[CUR_ADDR:%.*]] = call i64 @llvm.cheri.cap.address.get.i64(ptr addrspace(200) @bhnd_sprom_layouts)
// AGGRESSIVE-OR-LESS-NEXT: [[REMAINING_BYTES:%.*]] = sub i64 [[CUR_TOP]], [[CUR_ADDR]]
// AGGRESSIVE-OR-LESS-NEXT: [[TMP0:%.*]] = call ptr addrspace(200) @llvm.cheri.cap.bounds.set.i64(ptr addrspace(200) @bhnd_sprom_layouts, i64 [[REMAINING_BYTES]])
// AGGRESSIVE-OR-LESS-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [0 x i32], ptr addrspace(200) [[TMP0]], i64 0, i64 0
// AGGRESSIVE-OR-LESS-NEXT: [[CUR_OFFSET1:%.*]] = call i64 @llvm.cheri.cap.offset.get.i64(ptr addrspace(200) [[ARRAYIDX]])
// AGGRESSIVE-OR-LESS-NEXT: [[CUR_LEN2:%.*]] = call i64 @llvm.cheri.cap.length.get.i64(ptr addrspace(200) [[ARRAYIDX]])
// AGGRESSIVE-OR-LESS-NEXT: [[REMAINING_BYTES3:%.*]] = sub i64 [[CUR_LEN2]], [[CUR_OFFSET1]]
// AGGRESSIVE-OR-LESS-NEXT: [[CUR_TOP1:%.*]] = call i64 @llvm.cheri.cap.top.get.i64(ptr addrspace(200) [[ARRAYIDX]])
// AGGRESSIVE-OR-LESS-NEXT: [[CUR_ADDR1:%.*]] = call i64 @llvm.cheri.cap.address.get.i64(ptr addrspace(200) [[ARRAYIDX]])
// AGGRESSIVE-OR-LESS-NEXT: [[REMAINING_BYTES3:%.*]] = sub i64 [[CUR_TOP1]], [[CUR_ADDR1]]
// AGGRESSIVE-OR-LESS-NEXT: [[TMP1:%.*]] = call ptr addrspace(200) @llvm.cheri.cap.bounds.set.i64(ptr addrspace(200) [[ARRAYIDX]], i64 [[REMAINING_BYTES3]])
// AGGRESSIVE-OR-LESS-NEXT: call void @do_stuff_untyped(ptr addrspace(200) noundef [[TMP1]])
// AGGRESSIVE-OR-LESS-NEXT: ret void
//
// VERY-AGGRESSIVE-LABEL: @test_unsized_global_array(
// VERY-AGGRESSIVE-NEXT: entry:
// VERY-AGGRESSIVE-NEXT: [[CUR_OFFSET:%.*]] = call i64 @llvm.cheri.cap.offset.get.i64(ptr addrspace(200) @bhnd_sprom_layouts)
// VERY-AGGRESSIVE-NEXT: [[CUR_LEN:%.*]] = call i64 @llvm.cheri.cap.length.get.i64(ptr addrspace(200) @bhnd_sprom_layouts)
// VERY-AGGRESSIVE-NEXT: [[REMAINING_BYTES:%.*]] = sub i64 [[CUR_LEN]], [[CUR_OFFSET]]
// VERY-AGGRESSIVE-NEXT: [[CUR_TOP:%.*]] = call i64 @llvm.cheri.cap.top.get.i64(ptr addrspace(200) @bhnd_sprom_layouts)
// VERY-AGGRESSIVE-NEXT: [[CUR_ADDR:%.*]] = call i64 @llvm.cheri.cap.address.get.i64(ptr addrspace(200) @bhnd_sprom_layouts)
// VERY-AGGRESSIVE-NEXT: [[REMAINING_BYTES:%.*]] = sub i64 [[CUR_TOP]], [[CUR_ADDR]]
// VERY-AGGRESSIVE-NEXT: [[TMP0:%.*]] = call ptr addrspace(200) @llvm.cheri.cap.bounds.set.i64(ptr addrspace(200) @bhnd_sprom_layouts, i64 [[REMAINING_BYTES]])
// VERY-AGGRESSIVE-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [0 x i32], ptr addrspace(200) [[TMP0]], i64 0, i64 0
// VERY-AGGRESSIVE-NEXT: [[TMP1:%.*]] = call ptr addrspace(200) @llvm.cheri.cap.bounds.set.i64(ptr addrspace(200) [[ARRAYIDX]], i64 4)
Expand Down
30 changes: 15 additions & 15 deletions clang/test/CodeGen/cheri/subobject-bounds-array-to-pointer-decay.c
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Expand Up @@ -93,9 +93,9 @@ void test_global_struct_array_decay(struct_with_array *s, long index) {
// CHECK-SAME: (ptr addrspace(200) nocapture noundef readnone [[S:%.*]], i64 noundef signext [[SIZE:%.*]]) local_unnamed_addr addrspace(200) #[[ATTR0]] {
// CHECK-NEXT: entry:
// CHECK-NEXT: [[VLA:%.*]] = alloca i32, i64 [[SIZE]], align 4, addrspace(200)
// CHECK-NEXT: [[CUR_OFFSET:%.*]] = call i64 @llvm.cheri.cap.offset.get.i64(ptr addrspace(200) nonnull [[VLA]])
// CHECK-NEXT: [[CUR_LEN:%.*]] = call i64 @llvm.cheri.cap.length.get.i64(ptr addrspace(200) nonnull [[VLA]])
// CHECK-NEXT: [[REMAINING_BYTES:%.*]] = sub i64 [[CUR_LEN]], [[CUR_OFFSET]]
// CHECK-NEXT: [[CUR_TOP:%.*]] = call i64 @llvm.cheri.cap.top.get.i64(ptr addrspace(200) nonnull [[VLA]])
// CHECK-NEXT: [[CUR_ADDR:%.*]] = call i64 @llvm.cheri.cap.address.get.i64(ptr addrspace(200) nonnull [[VLA]])
// CHECK-NEXT: [[REMAINING_BYTES:%.*]] = sub i64 [[CUR_TOP]], [[CUR_ADDR]]
// CHECK-NEXT: [[TMP0:%.*]] = call ptr addrspace(200) @llvm.cheri.cap.bounds.set.i64(ptr addrspace(200) nonnull [[VLA]], i64 [[REMAINING_BYTES]])
// CHECK-NEXT: call void @overflow_buffer(ptr addrspace(200) noundef [[TMP0]]) #[[ATTR5]]
// CHECK-NEXT: ret void
Expand All @@ -115,9 +115,9 @@ struct vla_struct {
// CHECK-SAME: (ptr addrspace(200) noundef [[S:%.*]], i64 noundef signext [[INDEX:%.*]]) local_unnamed_addr addrspace(200) #[[ATTR0]] {
// CHECK-NEXT: entry:
// CHECK-NEXT: [[VLA:%.*]] = getelementptr inbounds nuw i8, ptr addrspace(200) [[S]], i64 4
// CHECK-NEXT: [[CUR_OFFSET:%.*]] = tail call i64 @llvm.cheri.cap.offset.get.i64(ptr addrspace(200) nonnull [[VLA]])
// CHECK-NEXT: [[CUR_LEN:%.*]] = tail call i64 @llvm.cheri.cap.length.get.i64(ptr addrspace(200) nonnull [[VLA]])
// CHECK-NEXT: [[REMAINING_BYTES:%.*]] = sub i64 [[CUR_LEN]], [[CUR_OFFSET]]
// CHECK-NEXT: [[CUR_TOP:%.*]] = tail call i64 @llvm.cheri.cap.top.get.i64(ptr addrspace(200) nonnull [[VLA]])
// CHECK-NEXT: [[CUR_ADDR:%.*]] = tail call i64 @llvm.cheri.cap.address.get.i64(ptr addrspace(200) nonnull [[VLA]])
// CHECK-NEXT: [[REMAINING_BYTES:%.*]] = sub i64 [[CUR_TOP]], [[CUR_ADDR]]
// CHECK-NEXT: [[TMP0:%.*]] = tail call ptr addrspace(200) @llvm.cheri.cap.bounds.set.i64(ptr addrspace(200) nonnull [[VLA]], i64 [[REMAINING_BYTES]])
// CHECK-NEXT: tail call void @overflow_buffer(ptr addrspace(200) noundef [[TMP0]]) #[[ATTR5]]
// CHECK-NEXT: ret void
Expand All @@ -135,9 +135,9 @@ struct fake_vla_struct {
// CHECK-SAME: (ptr addrspace(200) noundef [[S:%.*]], i64 noundef signext [[INDEX:%.*]]) local_unnamed_addr addrspace(200) #[[ATTR0]] {
// CHECK-NEXT: entry:
// CHECK-NEXT: [[FAKE_VLA:%.*]] = getelementptr inbounds nuw i8, ptr addrspace(200) [[S]], i64 4
// CHECK-NEXT: [[CUR_OFFSET:%.*]] = tail call i64 @llvm.cheri.cap.offset.get.i64(ptr addrspace(200) nonnull [[FAKE_VLA]])
// CHECK-NEXT: [[CUR_LEN:%.*]] = tail call i64 @llvm.cheri.cap.length.get.i64(ptr addrspace(200) nonnull [[FAKE_VLA]])
// CHECK-NEXT: [[REMAINING_BYTES:%.*]] = sub i64 [[CUR_LEN]], [[CUR_OFFSET]]
// CHECK-NEXT: [[CUR_TOP:%.*]] = tail call i64 @llvm.cheri.cap.top.get.i64(ptr addrspace(200) nonnull [[FAKE_VLA]])
// CHECK-NEXT: [[CUR_ADDR:%.*]] = tail call i64 @llvm.cheri.cap.address.get.i64(ptr addrspace(200) nonnull [[FAKE_VLA]])
// CHECK-NEXT: [[REMAINING_BYTES:%.*]] = sub i64 [[CUR_TOP]], [[CUR_ADDR]]
// CHECK-NEXT: [[TMP0:%.*]] = tail call ptr addrspace(200) @llvm.cheri.cap.bounds.set.i64(ptr addrspace(200) nonnull [[FAKE_VLA]], i64 [[REMAINING_BYTES]])
// CHECK-NEXT: tail call void @overflow_buffer(ptr addrspace(200) noundef [[TMP0]]) #[[ATTR5]]
// CHECK-NEXT: ret void
Expand All @@ -155,9 +155,9 @@ struct fake_vla_struct2 {
// CHECK-SAME: (ptr addrspace(200) noundef [[S:%.*]], i64 noundef signext [[INDEX:%.*]]) local_unnamed_addr addrspace(200) #[[ATTR0]] {
// CHECK-NEXT: entry:
// CHECK-NEXT: [[FAKE_VLA2:%.*]] = getelementptr inbounds nuw i8, ptr addrspace(200) [[S]], i64 4
// CHECK-NEXT: [[CUR_OFFSET:%.*]] = tail call i64 @llvm.cheri.cap.offset.get.i64(ptr addrspace(200) nonnull [[FAKE_VLA2]])
// CHECK-NEXT: [[CUR_LEN:%.*]] = tail call i64 @llvm.cheri.cap.length.get.i64(ptr addrspace(200) nonnull [[FAKE_VLA2]])
// CHECK-NEXT: [[REMAINING_BYTES:%.*]] = sub i64 [[CUR_LEN]], [[CUR_OFFSET]]
// CHECK-NEXT: [[CUR_TOP:%.*]] = tail call i64 @llvm.cheri.cap.top.get.i64(ptr addrspace(200) nonnull [[FAKE_VLA2]])
// CHECK-NEXT: [[CUR_ADDR:%.*]] = tail call i64 @llvm.cheri.cap.address.get.i64(ptr addrspace(200) nonnull [[FAKE_VLA2]])
// CHECK-NEXT: [[REMAINING_BYTES:%.*]] = sub i64 [[CUR_TOP]], [[CUR_ADDR]]
// CHECK-NEXT: [[TMP0:%.*]] = tail call ptr addrspace(200) @llvm.cheri.cap.bounds.set.i64(ptr addrspace(200) nonnull [[FAKE_VLA2]], i64 [[REMAINING_BYTES]])
// CHECK-NEXT: tail call void @overflow_buffer(ptr addrspace(200) noundef [[TMP0]]) #[[ATTR5]]
// CHECK-NEXT: ret void
Expand All @@ -171,9 +171,9 @@ extern int bhnd_sprom_layouts[];
// CHECK-LABEL: define {{[^@]+}}@test_unsized_global_decay
// CHECK-SAME: () local_unnamed_addr addrspace(200) #[[ATTR0]] {
// CHECK-NEXT: entry:
// CHECK-NEXT: [[CUR_OFFSET:%.*]] = tail call i64 @llvm.cheri.cap.offset.get.i64(ptr addrspace(200) nonnull @bhnd_sprom_layouts)
// CHECK-NEXT: [[CUR_LEN:%.*]] = tail call i64 @llvm.cheri.cap.length.get.i64(ptr addrspace(200) nonnull @bhnd_sprom_layouts)
// CHECK-NEXT: [[REMAINING_BYTES:%.*]] = sub i64 [[CUR_LEN]], [[CUR_OFFSET]]
// CHECK-NEXT: [[CUR_TOP:%.*]] = tail call i64 @llvm.cheri.cap.top.get.i64(ptr addrspace(200) nonnull @bhnd_sprom_layouts)
// CHECK-NEXT: [[CUR_ADDR:%.*]] = tail call i64 @llvm.cheri.cap.address.get.i64(ptr addrspace(200) nonnull @bhnd_sprom_layouts)
// CHECK-NEXT: [[REMAINING_BYTES:%.*]] = sub i64 [[CUR_TOP]], [[CUR_ADDR]]
// CHECK-NEXT: [[TMP0:%.*]] = tail call ptr addrspace(200) @llvm.cheri.cap.bounds.set.i64(ptr addrspace(200) nonnull @bhnd_sprom_layouts, i64 [[REMAINING_BYTES]])
// CHECK-NEXT: tail call void @overflow_buffer(ptr addrspace(200) noundef [[TMP0]]) #[[ATTR5]]
// CHECK-NEXT: ret void
Expand Down
12 changes: 6 additions & 6 deletions clang/test/CodeGen/cheri/subobject-bounds-pointer-container.c
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Expand Up @@ -59,14 +59,14 @@ char *test_SA(struct SA *sa) {
// CHECK-LABEL: @test_TA(
// CHECK-NEXT: entry:
// CHECK-NEXT: [[A:%.*]] = getelementptr inbounds nuw [[STRUCT_TA:%.*]], ptr addrspace(200) [[TA:%.*]], i32 0, i32 0
// CHECK-NEXT: [[CUR_OFFSET:%.*]] = call i64 @llvm.cheri.cap.offset.get.i64(ptr addrspace(200) [[A]])
// CHECK-NEXT: [[CUR_LEN:%.*]] = call i64 @llvm.cheri.cap.length.get.i64(ptr addrspace(200) [[A]])
// CHECK-NEXT: [[REMAINING_BYTES:%.*]] = sub i64 [[CUR_LEN]], [[CUR_OFFSET]]
// CHECK-NEXT: [[CUR_TOP:%.*]] = call i64 @llvm.cheri.cap.top.get.i64(ptr addrspace(200) [[A]])
// CHECK-NEXT: [[CUR_ADDR:%.*]] = call i64 @llvm.cheri.cap.address.get.i64(ptr addrspace(200) [[A]])
// CHECK-NEXT: [[REMAINING_BYTES:%.*]] = sub i64 [[CUR_TOP]], [[CUR_ADDR]]
// CHECK-NEXT: [[TMP0:%.*]] = call ptr addrspace(200) @llvm.cheri.cap.bounds.set.i64(ptr addrspace(200) [[A]], i64 [[REMAINING_BYTES]])
// CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds [2 x i8], ptr addrspace(200) [[TMP0]], i64 0, i64 1
// CHECK-NEXT: [[CUR_OFFSET1:%.*]] = call i64 @llvm.cheri.cap.offset.get.i64(ptr addrspace(200) [[ARRAYIDX]])
// CHECK-NEXT: [[CUR_LEN2:%.*]] = call i64 @llvm.cheri.cap.length.get.i64(ptr addrspace(200) [[ARRAYIDX]])
// CHECK-NEXT: [[REMAINING_BYTES3:%.*]] = sub i64 [[CUR_LEN2]], [[CUR_OFFSET1]]
// CHECK-NEXT: [[CUR_TOP1:%.*]] = call i64 @llvm.cheri.cap.top.get.i64(ptr addrspace(200) [[ARRAYIDX]])
// CHECK-NEXT: [[CUR_ADDR1:%.*]] = call i64 @llvm.cheri.cap.address.get.i64(ptr addrspace(200) [[ARRAYIDX]])
// CHECK-NEXT: [[REMAINING_BYTES3:%.*]] = sub i64 [[CUR_TOP1]], [[CUR_ADDR1]]
// CHECK-NEXT: [[TMP1:%.*]] = call ptr addrspace(200) @llvm.cheri.cap.bounds.set.i64(ptr addrspace(200) [[ARRAYIDX]], i64 [[REMAINING_BYTES3]])
// CHECK-NEXT: ret ptr addrspace(200) [[TMP1]]
//
Expand Down
30 changes: 15 additions & 15 deletions clang/test/CodeGen/cheri/subobject-bounds-remaining-size-attribute.c
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Expand Up @@ -38,9 +38,9 @@ void *test_opt_out(void *data, long index) {
// CHECK-LABEL: @test_remaining_size(
// CHECK-NEXT: entry:
// CHECK-NEXT: [[DATA1:%.*]] = getelementptr inbounds nuw i8, ptr addrspace(200) [[DATA:%.*]], i64 4
// CHECK-NEXT: [[CUR_OFFSET:%.*]] = tail call i64 @llvm.cheri.cap.offset.get.i64(ptr addrspace(200) nonnull [[DATA1]])
// CHECK-NEXT: [[CUR_LEN:%.*]] = tail call i64 @llvm.cheri.cap.length.get.i64(ptr addrspace(200) nonnull [[DATA1]])
// CHECK-NEXT: [[REMAINING_BYTES:%.*]] = sub i64 [[CUR_LEN]], [[CUR_OFFSET]]
// CHECK-NEXT: [[CUR_TOP:%.*]] = tail call i64 @llvm.cheri.cap.top.get.i64(ptr addrspace(200) nonnull [[DATA1]])
// CHECK-NEXT: [[CUR_ADDR:%.*]] = tail call i64 @llvm.cheri.cap.address.get.i64(ptr addrspace(200) nonnull [[DATA1]])
// CHECK-NEXT: [[REMAINING_BYTES:%.*]] = sub i64 [[CUR_TOP]], [[CUR_ADDR]]
// CHECK-NEXT: [[TMP0:%.*]] = tail call ptr addrspace(200) @llvm.cheri.cap.bounds.set.i64(ptr addrspace(200) nonnull [[DATA1]], i64 [[REMAINING_BYTES]])
// CHECK-NEXT: ret ptr addrspace(200) [[TMP0]]
//
Expand All @@ -56,9 +56,9 @@ void *test_remaining_size(void *data, long index) {
// CHECK-LABEL: @test_remaining_size_not_array(
// CHECK-NEXT: entry:
// CHECK-NEXT: [[F:%.*]] = getelementptr inbounds nuw i8, ptr addrspace(200) [[DATA:%.*]], i64 4
// CHECK-NEXT: [[CUR_OFFSET:%.*]] = tail call i64 @llvm.cheri.cap.offset.get.i64(ptr addrspace(200) nonnull [[F]])
// CHECK-NEXT: [[CUR_LEN:%.*]] = tail call i64 @llvm.cheri.cap.length.get.i64(ptr addrspace(200) nonnull [[F]])
// CHECK-NEXT: [[REMAINING_BYTES:%.*]] = sub i64 [[CUR_LEN]], [[CUR_OFFSET]]
// CHECK-NEXT: [[CUR_TOP:%.*]] = tail call i64 @llvm.cheri.cap.top.get.i64(ptr addrspace(200) nonnull [[F]])
// CHECK-NEXT: [[CUR_ADDR:%.*]] = tail call i64 @llvm.cheri.cap.address.get.i64(ptr addrspace(200) nonnull [[F]])
// CHECK-NEXT: [[REMAINING_BYTES:%.*]] = sub i64 [[CUR_TOP]], [[CUR_ADDR]]
// CHECK-NEXT: [[TMP0:%.*]] = tail call ptr addrspace(200) @llvm.cheri.cap.bounds.set.i64(ptr addrspace(200) nonnull [[F]], i64 [[REMAINING_BYTES]])
// CHECK-NEXT: ret ptr addrspace(200) [[TMP0]]
//
Expand All @@ -79,9 +79,9 @@ void *test_remaining_size_not_array(void *data, long index) {
// CHECK-LABEL: @test_remaining_size_on_type(
// CHECK-NEXT: entry:
// CHECK-NEXT: [[DATA1:%.*]] = getelementptr inbounds nuw i8, ptr addrspace(200) [[DATA:%.*]], i64 4
// CHECK-NEXT: [[CUR_OFFSET:%.*]] = tail call i64 @llvm.cheri.cap.offset.get.i64(ptr addrspace(200) nonnull [[DATA1]])
// CHECK-NEXT: [[CUR_LEN:%.*]] = tail call i64 @llvm.cheri.cap.length.get.i64(ptr addrspace(200) nonnull [[DATA1]])
// CHECK-NEXT: [[REMAINING_BYTES:%.*]] = sub i64 [[CUR_LEN]], [[CUR_OFFSET]]
// CHECK-NEXT: [[CUR_TOP:%.*]] = tail call i64 @llvm.cheri.cap.top.get.i64(ptr addrspace(200) nonnull [[DATA1]])
// CHECK-NEXT: [[CUR_ADDR:%.*]] = tail call i64 @llvm.cheri.cap.address.get.i64(ptr addrspace(200) nonnull [[DATA1]])
// CHECK-NEXT: [[REMAINING_BYTES:%.*]] = sub i64 [[CUR_TOP]], [[CUR_ADDR]]
// CHECK-NEXT: [[BOUNDED_REMAINING_SIZE:%.*]] = tail call i64 @llvm.umin.i64(i64 [[REMAINING_BYTES]], i64 16)
// CHECK-NEXT: [[TMP0:%.*]] = tail call ptr addrspace(200) @llvm.cheri.cap.bounds.set.i64(ptr addrspace(200) nonnull [[DATA1]], i64 [[BOUNDED_REMAINING_SIZE]])
// CHECK-NEXT: ret ptr addrspace(200) [[TMP0]]
Expand Down Expand Up @@ -124,9 +124,9 @@ void *test_remaining_size_ignored_on_typedef(void *data, long index) {
// CHECK-LABEL: @test_remaining_size_maximum(
// CHECK-NEXT: entry:
// CHECK-NEXT: [[DATA1:%.*]] = getelementptr inbounds nuw i8, ptr addrspace(200) [[DATA:%.*]], i64 4
// CHECK-NEXT: [[CUR_OFFSET:%.*]] = tail call i64 @llvm.cheri.cap.offset.get.i64(ptr addrspace(200) nonnull [[DATA1]])
// CHECK-NEXT: [[CUR_LEN:%.*]] = tail call i64 @llvm.cheri.cap.length.get.i64(ptr addrspace(200) nonnull [[DATA1]])
// CHECK-NEXT: [[REMAINING_BYTES:%.*]] = sub i64 [[CUR_LEN]], [[CUR_OFFSET]]
// CHECK-NEXT: [[CUR_TOP:%.*]] = tail call i64 @llvm.cheri.cap.top.get.i64(ptr addrspace(200) nonnull [[DATA1]])
// CHECK-NEXT: [[CUR_ADDR:%.*]] = tail call i64 @llvm.cheri.cap.address.get.i64(ptr addrspace(200) nonnull [[DATA1]])
// CHECK-NEXT: [[REMAINING_BYTES:%.*]] = sub i64 [[CUR_TOP]], [[CUR_ADDR]]
// CHECK-NEXT: [[BOUNDED_REMAINING_SIZE:%.*]] = tail call i64 @llvm.umin.i64(i64 [[REMAINING_BYTES]], i64 127)
// CHECK-NEXT: [[TMP0:%.*]] = tail call ptr addrspace(200) @llvm.cheri.cap.bounds.set.i64(ptr addrspace(200) nonnull [[DATA1]], i64 [[BOUNDED_REMAINING_SIZE]])
// CHECK-NEXT: ret ptr addrspace(200) [[TMP0]]
Expand All @@ -143,9 +143,9 @@ void *test_remaining_size_maximum(void *data, long index) {
// CHECK-LABEL: @test_vla(
// CHECK-NEXT: entry:
// CHECK-NEXT: [[VLA:%.*]] = getelementptr inbounds nuw i8, ptr addrspace(200) [[DATA:%.*]], i64 4
// CHECK-NEXT: [[CUR_OFFSET:%.*]] = tail call i64 @llvm.cheri.cap.offset.get.i64(ptr addrspace(200) nonnull [[VLA]])
// CHECK-NEXT: [[CUR_LEN:%.*]] = tail call i64 @llvm.cheri.cap.length.get.i64(ptr addrspace(200) nonnull [[VLA]])
// CHECK-NEXT: [[REMAINING_BYTES:%.*]] = sub i64 [[CUR_LEN]], [[CUR_OFFSET]]
// CHECK-NEXT: [[CUR_TOP:%.*]] = tail call i64 @llvm.cheri.cap.top.get.i64(ptr addrspace(200) nonnull [[VLA]])
// CHECK-NEXT: [[CUR_ADDR:%.*]] = tail call i64 @llvm.cheri.cap.address.get.i64(ptr addrspace(200) nonnull [[VLA]])
// CHECK-NEXT: [[REMAINING_BYTES:%.*]] = sub i64 [[CUR_TOP]], [[CUR_ADDR]]
// CHECK-NEXT: [[TMP0:%.*]] = tail call ptr addrspace(200) @llvm.cheri.cap.bounds.set.i64(ptr addrspace(200) nonnull [[VLA]], i64 [[REMAINING_BYTES]])
// CHECK-NEXT: ret ptr addrspace(200) [[TMP0]]
//
Expand Down
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