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carbon-lang/toolchain/lower/testdata/interop/cpp/pointer.carbon
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Dana Jansens 4261bb2dd2 Track and don't replace active .Self (#7443) 
In #7436 we stopped substituting `.Self` when collecting witnesses out
of a facet type. While this was correct, it did not capture all the
cases that need to avoid substituting `.Self`. And it poisoned the
`IdentifiedFacetType` cache by not replacing `.Self` but storing the
result in the cache. This led to incoherent behaviour, where the result
of an impl lookup would change depending on which ones had been done
previously.

Now we use a flag to track for each `.Self` if we're currently
type-checking inside the scope where it was introduced in a facet type.
While inside that scope, identify should not replace the `.Self`. Any
use of it should remain as-is since we don't yet know what value will
replace it. We call this state "frozen" since it should not be modified
by identify. This requires a substitution step when we leave the scope
that introduced the `.Self`, to remove the flag. The flag is set in the
`EntityName` of the `SymbolicBinding`, and is part of the canonical
value, since `.Self` can become part of types, which are constants, and
the flag needs to follow it for correct behaviour.

We also have to ensure the flag is the same when doing comparison with
constants from inside a facet type and constants from outside. For
instance in `(Z where .Z1 = ()) where .Z2 = .Z1`, when we arrive at the
second `.Z1` its `.Self` will be frozen, while the `.Z1 = ()` contains a
non-frozen `.Self`. So we add the frozen flag to the first when storing
it in `where_stack` in order to compare the constant values of the two
`.Z1`.

The `WhereExpr` requirement inst kinds now have an `InstConstantKind` of
`AlwaysUnique` instead of `Never`. This allows us to add them to the
usual InstBlocks, and in an `eval fn` body they have a constant value,
so eval does not fail when trying to call that function. We have to be
careful to not consider `AlwaysUnique` as being actually concrete
though, since their constant value erases `.Self`-dependence. This
allows us to stop special casing them when thawing the requirements
block in a `WhereExpr`, and we can just thaw each `InstId` in the block
in a straightforward manner.

We add the new flag to the instruction's fingerprint and name in
formatted semir.
2026-07-08 18:04:56 +00:00

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// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/full.carbon
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/lower/testdata/interop/cpp/pointer.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/lower/testdata/interop/cpp/pointer.carbon
// ============================================================================
// Non-null pointers
// ============================================================================
// --- nonnull.carbon
library "[[@TEST_NAME]]";
import Cpp inline '''
class C {};
auto TakePtr(C* _Nonnull) -> void;
auto ReturnPtr() -> C* _Nonnull;
auto TakePtrWithThunk(C* _Nonnull, int = 0) -> void;
auto ReturnPtrWithThunk(int = 0) -> C* _Nonnull;
''';
fn PassPtr(p: Cpp.C*) {
Cpp.TakePtr(p);
}
fn ReturnPtr() -> Cpp.C* {
return Cpp.ReturnPtr();
}
fn PassPtrWithThunk(p: Cpp.C*) {
Cpp.TakePtrWithThunk(p);
}
fn ReturnPtrWithThunk() -> Cpp.C* {
return Cpp.ReturnPtrWithThunk();
}
// ============================================================================
// Nullable pointers
// ============================================================================
// --- nullable.carbon
library "[[@TEST_NAME]]";
import Cpp inline '''
class C {};
auto TakePtr(C*) -> void;
auto ReturnPtr() -> C*;
auto TakePtrWithThunk(C*, int = 0) -> void;
auto ReturnPtrWithThunk(int = 0) -> C*;
''';
fn PassPtr(_: Core.Optional(Cpp.C*)) {
// TODO: Add support for passing an optional here.
// Cpp.TakePtr(p);
}
fn PassNonnullPtr(p: Cpp.C*) {
// TODO: The `value_of_initializer` optimization doesn't get used here, so we
// unnecessarily round-trip this value through memory.
Cpp.TakePtr(p);
}
fn ReturnPtr() -> Core.Optional(Cpp.C*) {
return Cpp.ReturnPtr();
}
fn PassPtrWithThunk(_: Core.Optional(Cpp.C*)) {
// TODO: Add support for passing an optional here.
// Cpp.TakePtrWithThunk(p);
}
fn PassNonnullPtrWithThunk(p: Cpp.C*) {
Cpp.TakePtrWithThunk(p);
}
fn ReturnPtrWithThunk() -> Core.Optional(Cpp.C*) {
return Cpp.ReturnPtrWithThunk();
}
// --- add_const.carbon
import Cpp inline '''
class C {};
C *make();
void take(const C*);
''';
fn Convert() {
Cpp.take(Cpp.make());
}
// CHECK:STDOUT: ; ---
// CHECK:STDOUT: ; ModuleID = 'nonnull.carbon'
// CHECK:STDOUT: source_filename = "nonnull.carbon"
// CHECK:STDOUT: target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
// CHECK:STDOUT: target triple = "x86_64-unknown-linux-gnu"
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CPassPtr.Main(ptr %p) #0 !dbg !11 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: call void @_Z7TakePtrP1C(ptr %p), !dbg !17
// CHECK:STDOUT: ret void, !dbg !18
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: declare void @_Z7TakePtrP1C(ptr noundef) #1
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define ptr @_CReturnPtr.Main() #0 !dbg !19 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %ReturnPtr.call = call ptr @_Z9ReturnPtrv(), !dbg !22
// CHECK:STDOUT: ret ptr %ReturnPtr.call, !dbg !23
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: declare noundef ptr @_Z9ReturnPtrv() #1
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CPassPtrWithThunk.Main(ptr %p) #0 !dbg !24 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: call void @_Z16TakePtrWithThunkP1Ci.carbon_thunk._(ptr %p), !dbg !27
// CHECK:STDOUT: ret void, !dbg !28
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: alwaysinline mustprogress uwtable
// CHECK:STDOUT: define internal void @_Z16TakePtrWithThunkP1Ci.carbon_thunk._(ptr noundef %0) #2 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.addr = alloca ptr, align 8
// CHECK:STDOUT: store ptr %0, ptr %.addr, align 8, !tbaa !29
// CHECK:STDOUT: %1 = load ptr, ptr %.addr, align 8, !tbaa !29
// CHECK:STDOUT: call void @_Z16TakePtrWithThunkP1Ci(ptr noundef %1, i32 noundef 0)
// CHECK:STDOUT: ret void
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define ptr @_CReturnPtrWithThunk.Main() #0 !dbg !32 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %ReturnPtrWithThunk__carbon_thunk.call = call ptr @_Z18ReturnPtrWithThunki.carbon_thunk.(), !dbg !33
// CHECK:STDOUT: ret ptr %ReturnPtrWithThunk__carbon_thunk.call, !dbg !34
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: alwaysinline mustprogress uwtable
// CHECK:STDOUT: define internal noundef ptr @_Z18ReturnPtrWithThunki.carbon_thunk.() #2 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %call = call noundef ptr @_Z18ReturnPtrWithThunki(i32 noundef 0)
// CHECK:STDOUT: ret ptr %call
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: declare void @_Z16TakePtrWithThunkP1Ci(ptr noundef, i32 noundef) #1
// CHECK:STDOUT:
// CHECK:STDOUT: declare noundef ptr @_Z18ReturnPtrWithThunki(i32 noundef) #1
// CHECK:STDOUT:
// CHECK:STDOUT: attributes #0 = { nounwind }
// CHECK:STDOUT: attributes #1 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
// CHECK:STDOUT: attributes #2 = { alwaysinline mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
// CHECK:STDOUT:
// CHECK:STDOUT: !llvm.dbg.cu = !{!0}
// CHECK:STDOUT: !llvm.module.flags = !{!2, !3, !4, !5, !6}
// CHECK:STDOUT: !llvm.errno.tbaa = !{!7}
// CHECK:STDOUT:
// CHECK:STDOUT: !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
// CHECK:STDOUT: !1 = !DIFile(filename: "nonnull.carbon", directory: "")
// CHECK:STDOUT: !2 = !{i32 8, !"PIC Level", i32 2}
// CHECK:STDOUT: !3 = !{i32 7, !"PIE Level", i32 2}
// CHECK:STDOUT: !4 = !{i32 7, !"uwtable", i32 2}
// CHECK:STDOUT: !5 = !{i32 7, !"Dwarf Version", i32 5}
// CHECK:STDOUT: !6 = !{i32 2, !"Debug Info Version", i32 3}
// CHECK:STDOUT: !7 = !{!8, !8, i64 0}
// CHECK:STDOUT: !8 = !{!"int", !9, i64 0}
// CHECK:STDOUT: !9 = !{!"omnipotent char", !10, i64 0}
// CHECK:STDOUT: !10 = !{!"Simple C++ TBAA"}
// CHECK:STDOUT: !11 = distinct !DISubprogram(name: "PassPtr", linkageName: "_CPassPtr.Main", scope: null, file: !1, line: 14, type: !12, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !15)
// CHECK:STDOUT: !12 = !DISubroutineType(types: !13)
// CHECK:STDOUT: !13 = !{null, !14}
// CHECK:STDOUT: !14 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
// CHECK:STDOUT: !15 = !{!16}
// CHECK:STDOUT: !16 = !DILocalVariable(arg: 1, scope: !11, type: !14)
// CHECK:STDOUT: !17 = !DILocation(line: 15, column: 3, scope: !11)
// CHECK:STDOUT: !18 = !DILocation(line: 14, column: 1, scope: !11)
// CHECK:STDOUT: !19 = distinct !DISubprogram(name: "ReturnPtr", linkageName: "_CReturnPtr.Main", scope: null, file: !1, line: 18, type: !20, spFlags: DISPFlagDefinition, unit: !0)
// CHECK:STDOUT: !20 = !DISubroutineType(types: !21)
// CHECK:STDOUT: !21 = !{!14}
// CHECK:STDOUT: !22 = !DILocation(line: 19, column: 10, scope: !19)
// CHECK:STDOUT: !23 = !DILocation(line: 19, column: 3, scope: !19)
// CHECK:STDOUT: !24 = distinct !DISubprogram(name: "PassPtrWithThunk", linkageName: "_CPassPtrWithThunk.Main", scope: null, file: !1, line: 22, type: !12, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !25)
// CHECK:STDOUT: !25 = !{!26}
// CHECK:STDOUT: !26 = !DILocalVariable(arg: 1, scope: !24, type: !14)
// CHECK:STDOUT: !27 = !DILocation(line: 23, column: 3, scope: !24)
// CHECK:STDOUT: !28 = !DILocation(line: 22, column: 1, scope: !24)
// CHECK:STDOUT: !29 = !{!30, !30, i64 0}
// CHECK:STDOUT: !30 = !{!"p1 _ZTS1C", !31, i64 0}
// CHECK:STDOUT: !31 = !{!"any pointer", !9, i64 0}
// CHECK:STDOUT: !32 = distinct !DISubprogram(name: "ReturnPtrWithThunk", linkageName: "_CReturnPtrWithThunk.Main", scope: null, file: !1, line: 26, type: !20, spFlags: DISPFlagDefinition, unit: !0)
// CHECK:STDOUT: !33 = !DILocation(line: 27, column: 10, scope: !32)
// CHECK:STDOUT: !34 = !DILocation(line: 27, column: 3, scope: !32)
// CHECK:STDOUT:
// CHECK:STDOUT: ; ---
// CHECK:STDOUT: ; ModuleID = 'nullable.carbon'
// CHECK:STDOUT: source_filename = "nullable.carbon"
// CHECK:STDOUT: target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
// CHECK:STDOUT: target triple = "x86_64-unknown-linux-gnu"
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CPassPtr.Main(ptr %_) #0 !dbg !11 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !17
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CPassNonnullPtr.Main(ptr %p) #0 !dbg !18 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.loc22_15.2.temp = alloca ptr, align 8, !dbg !21
// CHECK:STDOUT: %U.as_type.as.ImplicitAs.impl.Convert.call = call ptr @"_CConvert.538322f9fda4254f:ImplicitAs.a276ba298c70ba87.Core.718daad32622d4f5"(ptr %p), !dbg !21
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc22_15.2.temp), !dbg !21
// CHECK:STDOUT: store ptr %U.as_type.as.ImplicitAs.impl.Convert.call, ptr %.loc22_15.2.temp, align 8, !dbg !21
// CHECK:STDOUT: %.loc22_15.4 = load ptr, ptr %.loc22_15.2.temp, align 8, !dbg !21
// CHECK:STDOUT: call void @_Z7TakePtrP1C(ptr %.loc22_15.4), !dbg !22
// CHECK:STDOUT: call void @"_COp.1341c5e44ed8ed9c:core.Destroy.Core"(ptr %.loc22_15.2.temp), !dbg !21
// CHECK:STDOUT: ret void, !dbg !23
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: declare void @_Z7TakePtrP1C(ptr noundef) #1
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define weak_odr void @"_COp.b66d38b36d1f26ac:core.Destroy.Core"(ptr %self) #0 !dbg !24 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !27
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define weak_odr void @"_COp.0eaa291c18f0461d:core.Destroy.Core"(ptr %self) #0 !dbg !28 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !31
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define weak_odr void @"_COp.1341c5e44ed8ed9c:core.Destroy.Core"(ptr %self) #0 !dbg !32 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !35
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define ptr @_CReturnPtr.Main() #0 !dbg !36 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %ReturnPtr.call = call ptr @_Z9ReturnPtrv(), !dbg !39
// CHECK:STDOUT: ret ptr %ReturnPtr.call, !dbg !40
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: declare noundef ptr @_Z9ReturnPtrv() #1
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CPassPtrWithThunk.Main(ptr %_) #0 !dbg !41 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !44
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CPassNonnullPtrWithThunk.Main(ptr %p) #0 !dbg !45 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.loc35_24.2.temp = alloca ptr, align 8, !dbg !48
// CHECK:STDOUT: %U.as_type.as.ImplicitAs.impl.Convert.call = call ptr @"_CConvert.538322f9fda4254f:ImplicitAs.a276ba298c70ba87.Core.718daad32622d4f5"(ptr %p), !dbg !48
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc35_24.2.temp), !dbg !48
// CHECK:STDOUT: store ptr %U.as_type.as.ImplicitAs.impl.Convert.call, ptr %.loc35_24.2.temp, align 8, !dbg !48
// CHECK:STDOUT: %.loc35_24.4 = load ptr, ptr %.loc35_24.2.temp, align 8, !dbg !48
// CHECK:STDOUT: call void @_Z16TakePtrWithThunkP1Ci.carbon_thunk._(ptr %.loc35_24.4), !dbg !49
// CHECK:STDOUT: call void @"_COp.1341c5e44ed8ed9c:core.Destroy.Core"(ptr %.loc35_24.2.temp), !dbg !48
// CHECK:STDOUT: ret void, !dbg !50
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: alwaysinline mustprogress uwtable
// CHECK:STDOUT: define internal void @_Z16TakePtrWithThunkP1Ci.carbon_thunk._(ptr noundef %0) #2 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.addr = alloca ptr, align 8
// CHECK:STDOUT: store ptr %0, ptr %.addr, align 8, !tbaa !51
// CHECK:STDOUT: %1 = load ptr, ptr %.addr, align 8, !tbaa !51
// CHECK:STDOUT: call void @_Z16TakePtrWithThunkP1Ci(ptr noundef %1, i32 noundef 0)
// CHECK:STDOUT: ret void
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define ptr @_CReturnPtrWithThunk.Main() #0 !dbg !54 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %ReturnPtrWithThunk__carbon_thunk.call = call ptr @_Z18ReturnPtrWithThunki.carbon_thunk.(), !dbg !55
// CHECK:STDOUT: ret ptr %ReturnPtrWithThunk__carbon_thunk.call, !dbg !56
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: alwaysinline mustprogress uwtable
// CHECK:STDOUT: define internal noundef ptr @_Z18ReturnPtrWithThunki.carbon_thunk.() #2 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %call = call noundef ptr @_Z18ReturnPtrWithThunki(i32 noundef 0)
// CHECK:STDOUT: ret ptr %call
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr ptr @"_CConvert.538322f9fda4254f:ImplicitAs.a276ba298c70ba87.Core.718daad32622d4f5"(ptr %self) #0 !dbg !57 {
// CHECK:STDOUT: %1 = call ptr @"_CConvert.9fdaf39d07a1dc4e:OptionalAs.24b7347a93330e68.Core.9437b281f77355fe"(ptr %self), !dbg !63
// CHECK:STDOUT: ret ptr %1, !dbg !64
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
// CHECK:STDOUT: declare void @llvm.lifetime.start.p0(ptr captures(none)) #3
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr ptr @"_CConvert.9fdaf39d07a1dc4e:OptionalAs.24b7347a93330e68.Core.9437b281f77355fe"(ptr %self) #0 !dbg !65 {
// CHECK:STDOUT: %1 = call ptr @_CSome.Optional.Core.9437b281f77355fe(ptr %self), !dbg !68
// CHECK:STDOUT: ret ptr %1, !dbg !69
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr ptr @_CSome.Optional.Core.9437b281f77355fe(ptr %value) #0 !dbg !70 {
// CHECK:STDOUT: %1 = call ptr @"_CSome.e8f8f92d3d08d149:OptionalStorage.Core.fc8b3e0dc71c345e"(ptr %value), !dbg !73
// CHECK:STDOUT: ret ptr %1, !dbg !74
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr ptr @"_CSome.e8f8f92d3d08d149:OptionalStorage.Core.fc8b3e0dc71c345e"(ptr %self) #0 !dbg !75 {
// CHECK:STDOUT: %1 = alloca ptr, align 8, !dbg !78
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %1), !dbg !78
// CHECK:STDOUT: store ptr poison, ptr %1, align 8, !dbg !78
// CHECK:STDOUT: store ptr %self, ptr %1, align 8, !dbg !79
// CHECK:STDOUT: %2 = load ptr, ptr %1, align 8, !dbg !80
// CHECK:STDOUT: call void @"_COp.0eaa291c18f0461d:core.Destroy.Core"(ptr %1), !dbg !78
// CHECK:STDOUT: ret ptr %2, !dbg !81
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: declare void @_Z16TakePtrWithThunkP1Ci(ptr noundef, i32 noundef) #1
// CHECK:STDOUT:
// CHECK:STDOUT: declare noundef ptr @_Z18ReturnPtrWithThunki(i32 noundef) #1
// CHECK:STDOUT:
// CHECK:STDOUT: ; uselistorder directives
// CHECK:STDOUT: uselistorder ptr @"_CConvert.538322f9fda4254f:ImplicitAs.a276ba298c70ba87.Core.718daad32622d4f5", { 1, 0 }
// CHECK:STDOUT: uselistorder ptr @llvm.lifetime.start.p0, { 0, 2, 1 }
// CHECK:STDOUT:
// CHECK:STDOUT: attributes #0 = { nounwind }
// CHECK:STDOUT: attributes #1 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
// CHECK:STDOUT: attributes #2 = { alwaysinline mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
// CHECK:STDOUT: attributes #3 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
// CHECK:STDOUT:
// CHECK:STDOUT: !llvm.dbg.cu = !{!0}
// CHECK:STDOUT: !llvm.module.flags = !{!2, !3, !4, !5, !6}
// CHECK:STDOUT: !llvm.errno.tbaa = !{!7}
// CHECK:STDOUT:
// CHECK:STDOUT: !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
// CHECK:STDOUT: !1 = !DIFile(filename: "nullable.carbon", directory: "")
// CHECK:STDOUT: !2 = !{i32 8, !"PIC Level", i32 2}
// CHECK:STDOUT: !3 = !{i32 7, !"PIE Level", i32 2}
// CHECK:STDOUT: !4 = !{i32 7, !"uwtable", i32 2}
// CHECK:STDOUT: !5 = !{i32 7, !"Dwarf Version", i32 5}
// CHECK:STDOUT: !6 = !{i32 2, !"Debug Info Version", i32 3}
// CHECK:STDOUT: !7 = !{!8, !8, i64 0}
// CHECK:STDOUT: !8 = !{!"int", !9, i64 0}
// CHECK:STDOUT: !9 = !{!"omnipotent char", !10, i64 0}
// CHECK:STDOUT: !10 = !{!"Simple C++ TBAA"}
// CHECK:STDOUT: !11 = distinct !DISubprogram(name: "PassPtr", linkageName: "_CPassPtr.Main", scope: null, file: !1, line: 14, type: !12, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !15)
// CHECK:STDOUT: !12 = !DISubroutineType(types: !13)
// CHECK:STDOUT: !13 = !{null, !14}
// CHECK:STDOUT: !14 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
// CHECK:STDOUT: !15 = !{!16}
// CHECK:STDOUT: !16 = !DILocalVariable(arg: 1, scope: !11, type: !14)
// CHECK:STDOUT: !17 = !DILocation(line: 14, column: 1, scope: !11)
// CHECK:STDOUT: !18 = distinct !DISubprogram(name: "PassNonnullPtr", linkageName: "_CPassNonnullPtr.Main", scope: null, file: !1, line: 19, type: !12, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !19)
// CHECK:STDOUT: !19 = !{!20}
// CHECK:STDOUT: !20 = !DILocalVariable(arg: 1, scope: !18, type: !14)
// CHECK:STDOUT: !21 = !DILocation(line: 22, column: 15, scope: !18)
// CHECK:STDOUT: !22 = !DILocation(line: 22, column: 3, scope: !18)
// CHECK:STDOUT: !23 = !DILocation(line: 19, column: 1, scope: !18)
// CHECK:STDOUT: !24 = distinct !DISubprogram(name: "Op", linkageName: "_COp.b66d38b36d1f26ac:core.Destroy.Core", scope: null, file: !1, line: 22, type: !12, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !25)
// CHECK:STDOUT: !25 = !{!26}
// CHECK:STDOUT: !26 = !DILocalVariable(arg: 1, scope: !24, type: !14)
// CHECK:STDOUT: !27 = !DILocation(line: 22, column: 15, scope: !24)
// CHECK:STDOUT: !28 = distinct !DISubprogram(name: "Op", linkageName: "_COp.0eaa291c18f0461d:core.Destroy.Core", scope: null, file: !1, line: 22, type: !12, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !29)
// CHECK:STDOUT: !29 = !{!30}
// CHECK:STDOUT: !30 = !DILocalVariable(arg: 1, scope: !28, type: !14)
// CHECK:STDOUT: !31 = !DILocation(line: 22, column: 15, scope: !28)
// CHECK:STDOUT: !32 = distinct !DISubprogram(name: "Op", linkageName: "_COp.1341c5e44ed8ed9c:core.Destroy.Core", scope: null, file: !1, line: 22, type: !12, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !33)
// CHECK:STDOUT: !33 = !{!34}
// CHECK:STDOUT: !34 = !DILocalVariable(arg: 1, scope: !32, type: !14)
// CHECK:STDOUT: !35 = !DILocation(line: 22, column: 15, scope: !32)
// CHECK:STDOUT: !36 = distinct !DISubprogram(name: "ReturnPtr", linkageName: "_CReturnPtr.Main", scope: null, file: !1, line: 25, type: !37, spFlags: DISPFlagDefinition, unit: !0)
// CHECK:STDOUT: !37 = !DISubroutineType(types: !38)
// CHECK:STDOUT: !38 = !{!14}
// CHECK:STDOUT: !39 = !DILocation(line: 26, column: 10, scope: !36)
// CHECK:STDOUT: !40 = !DILocation(line: 26, column: 3, scope: !36)
// CHECK:STDOUT: !41 = distinct !DISubprogram(name: "PassPtrWithThunk", linkageName: "_CPassPtrWithThunk.Main", scope: null, file: !1, line: 29, type: !12, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !42)
// CHECK:STDOUT: !42 = !{!43}
// CHECK:STDOUT: !43 = !DILocalVariable(arg: 1, scope: !41, type: !14)
// CHECK:STDOUT: !44 = !DILocation(line: 29, column: 1, scope: !41)
// CHECK:STDOUT: !45 = distinct !DISubprogram(name: "PassNonnullPtrWithThunk", linkageName: "_CPassNonnullPtrWithThunk.Main", scope: null, file: !1, line: 34, type: !12, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !46)
// CHECK:STDOUT: !46 = !{!47}
// CHECK:STDOUT: !47 = !DILocalVariable(arg: 1, scope: !45, type: !14)
// CHECK:STDOUT: !48 = !DILocation(line: 35, column: 24, scope: !45)
// CHECK:STDOUT: !49 = !DILocation(line: 35, column: 3, scope: !45)
// CHECK:STDOUT: !50 = !DILocation(line: 34, column: 1, scope: !45)
// CHECK:STDOUT: !51 = !{!52, !52, i64 0}
// CHECK:STDOUT: !52 = !{!"p1 _ZTS1C", !53, i64 0}
// CHECK:STDOUT: !53 = !{!"any pointer", !9, i64 0}
// CHECK:STDOUT: !54 = distinct !DISubprogram(name: "ReturnPtrWithThunk", linkageName: "_CReturnPtrWithThunk.Main", scope: null, file: !1, line: 38, type: !37, spFlags: DISPFlagDefinition, unit: !0)
// CHECK:STDOUT: !55 = !DILocation(line: 39, column: 10, scope: !54)
// CHECK:STDOUT: !56 = !DILocation(line: 39, column: 3, scope: !54)
// CHECK:STDOUT: !57 = distinct !DISubprogram(name: "Convert", linkageName: "_CConvert.538322f9fda4254f:ImplicitAs.a276ba298c70ba87.Core.718daad32622d4f5", scope: null, file: !58, line: 105, type: !59, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !61)
// CHECK:STDOUT: !58 = !DIFile(filename: "{{.*}}/prelude/types/optional.carbon", directory: "")
// CHECK:STDOUT: !59 = !DISubroutineType(types: !60)
// CHECK:STDOUT: !60 = !{!14, !14}
// CHECK:STDOUT: !61 = !{!62}
// CHECK:STDOUT: !62 = !DILocalVariable(arg: 1, scope: !57, type: !14)
// CHECK:STDOUT: !63 = !DILocation(line: 106, column: 12, scope: !57)
// CHECK:STDOUT: !64 = !DILocation(line: 106, column: 5, scope: !57)
// CHECK:STDOUT: !65 = distinct !DISubprogram(name: "Convert", linkageName: "_CConvert.9fdaf39d07a1dc4e:OptionalAs.24b7347a93330e68.Core.9437b281f77355fe", scope: null, file: !58, line: 80, type: !59, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !66)
// CHECK:STDOUT: !66 = !{!67}
// CHECK:STDOUT: !67 = !DILocalVariable(arg: 1, scope: !65, type: !14)
// CHECK:STDOUT: !68 = !DILocation(line: 81, column: 12, scope: !65)
// CHECK:STDOUT: !69 = !DILocation(line: 81, column: 5, scope: !65)
// CHECK:STDOUT: !70 = distinct !DISubprogram(name: "Some", linkageName: "_CSome.Optional.Core.9437b281f77355fe", scope: null, file: !58, line: 33, type: !59, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !71)
// CHECK:STDOUT: !71 = !{!72}
// CHECK:STDOUT: !72 = !DILocalVariable(arg: 1, scope: !70, type: !14)
// CHECK:STDOUT: !73 = !DILocation(line: 34, column: 12, scope: !70)
// CHECK:STDOUT: !74 = !DILocation(line: 34, column: 5, scope: !70)
// CHECK:STDOUT: !75 = distinct !DISubprogram(name: "Some", linkageName: "_CSome.e8f8f92d3d08d149:OptionalStorage.Core.fc8b3e0dc71c345e", scope: null, file: !58, line: 166, type: !59, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !76)
// CHECK:STDOUT: !76 = !{!77}
// CHECK:STDOUT: !77 = !DILocalVariable(arg: 1, scope: !75, type: !14)
// CHECK:STDOUT: !78 = !DILocation(line: 167, column: 14, scope: !75)
// CHECK:STDOUT: !79 = !DILocation(line: 169, column: 5, scope: !75)
// CHECK:STDOUT: !80 = !DILocation(line: 167, column: 18, scope: !75)
// CHECK:STDOUT: !81 = !DILocation(line: 170, column: 5, scope: !75)
// CHECK:STDOUT:
// CHECK:STDOUT: ; ---
// CHECK:STDOUT: ; ModuleID = 'add_const.carbon'
// CHECK:STDOUT: source_filename = "add_const.carbon"
// CHECK:STDOUT: target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
// CHECK:STDOUT: target triple = "x86_64-unknown-linux-gnu"
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CConvert.Main() #0 !dbg !11 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.loc9_21.1.temp = alloca ptr, align 8, !dbg !14
// CHECK:STDOUT: %.loc9_21.5.temp = alloca ptr, align 8, !dbg !14
// CHECK:STDOUT: %make.call = call ptr @_Z4makev(), !dbg !14
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc9_21.1.temp), !dbg !14
// CHECK:STDOUT: store ptr %make.call, ptr %.loc9_21.1.temp, align 8, !dbg !14
// CHECK:STDOUT: %.loc9_21.3 = load ptr, ptr %.loc9_21.1.temp, align 8, !dbg !14
// CHECK:STDOUT: %U.as_type.as.ImplicitAs.impl.Convert.call = call ptr @"_CConvert.538322f9fda4254f:ImplicitAs.a276ba298c70ba87.Core.4ac926a9bb296667"(ptr %.loc9_21.3), !dbg !14
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc9_21.5.temp), !dbg !14
// CHECK:STDOUT: store ptr %U.as_type.as.ImplicitAs.impl.Convert.call, ptr %.loc9_21.5.temp, align 8, !dbg !14
// CHECK:STDOUT: %.loc9_21.7 = load ptr, ptr %.loc9_21.5.temp, align 8, !dbg !14
// CHECK:STDOUT: call void @_Z4takePK1C(ptr %.loc9_21.7), !dbg !15
// CHECK:STDOUT: call void @"_COp.5a309bcb12d98030:core.Destroy.Core"(ptr %.loc9_21.5.temp), !dbg !14
// CHECK:STDOUT: call void @"_COp.50147b96cc245a5c:core.Destroy.Core"(ptr %.loc9_21.1.temp), !dbg !14
// CHECK:STDOUT: ret void, !dbg !16
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: declare noundef ptr @_Z4makev() #1
// CHECK:STDOUT:
// CHECK:STDOUT: declare void @_Z4takePK1C(ptr noundef) #1
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define weak_odr void @"_COp.4a199b7f45343bf7:core.Destroy.Core"(ptr %self) #0 !dbg !17 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !23
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define weak_odr void @"_COp.95d54adfec6e2c8e:core.Destroy.Core"(ptr %self) #0 !dbg !24 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !27
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define weak_odr void @"_COp.5a309bcb12d98030:core.Destroy.Core"(ptr %self) #0 !dbg !28 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !31
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define weak_odr void @"_COp.b66d38b36d1f26ac:core.Destroy.Core"(ptr %self) #0 !dbg !32 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !35
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define weak_odr void @"_COp.0eaa291c18f0461d:core.Destroy.Core"(ptr %self) #0 !dbg !36 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !39
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define weak_odr void @"_COp.50147b96cc245a5c:core.Destroy.Core"(ptr %self) #0 !dbg !40 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !43
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
// CHECK:STDOUT: declare void @llvm.lifetime.start.p0(ptr captures(none)) #2
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr ptr @"_CConvert.538322f9fda4254f:ImplicitAs.a276ba298c70ba87.Core.4ac926a9bb296667"(ptr %self) #0 !dbg !44 {
// CHECK:STDOUT: %1 = call ptr @"_CConvert.Optional.c661605f12aa337a.Core:OptionalAs.1dac4564233fecd1.Core.cdbe4154b421df5e"(ptr %self), !dbg !50
// CHECK:STDOUT: ret ptr %1, !dbg !51
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr ptr @"_CConvert.Optional.c661605f12aa337a.Core:OptionalAs.1dac4564233fecd1.Core.cdbe4154b421df5e"(ptr %self) #0 !dbg !52 {
// CHECK:STDOUT: %temp = alloca ptr, align 8, !dbg !55
// CHECK:STDOUT: %temp1 = alloca ptr, align 8, !dbg !55
// CHECK:STDOUT: %1 = call i1 @_CHasValue.Optional.Core.8a123cba93150295(ptr %self), !dbg !56
// CHECK:STDOUT: br i1 %1, label %2, label %7, !dbg !57
// CHECK:STDOUT:
// CHECK:STDOUT: 2: ; preds = %0
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %temp), !dbg !55
// CHECK:STDOUT: %3 = call ptr @_CGet.Optional.Core.8a123cba93150295(ptr %self), !dbg !55
// CHECK:STDOUT: store ptr %3, ptr %temp, align 8, !dbg !55
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %temp1), !dbg !55
// CHECK:STDOUT: %4 = load ptr, ptr %temp, align 8, !dbg !55
// CHECK:STDOUT: store ptr %4, ptr %temp1, align 8, !dbg !55
// CHECK:STDOUT: %5 = load ptr, ptr %temp1, align 8, !dbg !55
// CHECK:STDOUT: %6 = call ptr @_CSome.Optional.Core.0a3165baf8bbb6d3(ptr %5), !dbg !58
// CHECK:STDOUT: ret ptr %6, !dbg !59
// CHECK:STDOUT:
// CHECK:STDOUT: 7: ; preds = %0
// CHECK:STDOUT: %8 = call ptr @_CNone.Optional.Core.0a3165baf8bbb6d3(), !dbg !60
// CHECK:STDOUT: ret ptr %8, !dbg !61
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr i1 @_CHasValue.Optional.Core.8a123cba93150295(ptr %self) #0 !dbg !62 {
// CHECK:STDOUT: %1 = call i1 @"_CHas.e8f8f92d3d08d149:OptionalStorage.Core.fc8b3e0dc71c345e"(ptr %self), !dbg !65
// CHECK:STDOUT: ret i1 %1, !dbg !66
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr ptr @_CGet.Optional.Core.8a123cba93150295(ptr %self) #0 !dbg !67 {
// CHECK:STDOUT: %1 = call ptr @"_CGet.e8f8f92d3d08d149:OptionalStorage.Core.fc8b3e0dc71c345e"(ptr %self), !dbg !70
// CHECK:STDOUT: ret ptr %1, !dbg !71
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr ptr @_CSome.Optional.Core.0a3165baf8bbb6d3(ptr %value) #0 !dbg !72 {
// CHECK:STDOUT: %1 = call ptr @"_CSome.e8f8f92d3d08d149:OptionalStorage.Core.8753681fdb639539"(ptr %value), !dbg !75
// CHECK:STDOUT: ret ptr %1, !dbg !76
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr ptr @_CNone.Optional.Core.0a3165baf8bbb6d3() #0 !dbg !77 {
// CHECK:STDOUT: ret ptr null, !dbg !80
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr i1 @"_CHas.e8f8f92d3d08d149:OptionalStorage.Core.fc8b3e0dc71c345e"(ptr %value) #0 !dbg !81 {
// CHECK:STDOUT: %1 = icmp eq ptr %value, null, !dbg !84
// CHECK:STDOUT: %2 = xor i1 %1, true, !dbg !85
// CHECK:STDOUT: ret i1 %2, !dbg !86
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr ptr @"_CGet.e8f8f92d3d08d149:OptionalStorage.Core.fc8b3e0dc71c345e"(ptr %value) #0 !dbg !87 {
// CHECK:STDOUT: ret ptr %value, !dbg !90
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr ptr @"_CSome.e8f8f92d3d08d149:OptionalStorage.Core.8753681fdb639539"(ptr %self) #0 !dbg !91 {
// CHECK:STDOUT: %1 = alloca ptr, align 8, !dbg !94
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %1), !dbg !94
// CHECK:STDOUT: store ptr poison, ptr %1, align 8, !dbg !94
// CHECK:STDOUT: store ptr %self, ptr %1, align 8, !dbg !95
// CHECK:STDOUT: %2 = load ptr, ptr %1, align 8, !dbg !96
// CHECK:STDOUT: call void @"_COp.95d54adfec6e2c8e:core.Destroy.Core"(ptr %1), !dbg !94
// CHECK:STDOUT: ret ptr %2, !dbg !97
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; uselistorder directives
// CHECK:STDOUT: uselistorder ptr @llvm.lifetime.start.p0, { 0, 1, 2, 4, 3 }
// CHECK:STDOUT:
// CHECK:STDOUT: attributes #0 = { nounwind }
// CHECK:STDOUT: attributes #1 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
// CHECK:STDOUT: attributes #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
// CHECK:STDOUT:
// CHECK:STDOUT: !llvm.dbg.cu = !{!0}
// CHECK:STDOUT: !llvm.module.flags = !{!2, !3, !4, !5, !6}
// CHECK:STDOUT: !llvm.errno.tbaa = !{!7}
// CHECK:STDOUT:
// CHECK:STDOUT: !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
// CHECK:STDOUT: !1 = !DIFile(filename: "add_const.carbon", directory: "")
// CHECK:STDOUT: !2 = !{i32 8, !"PIC Level", i32 2}
// CHECK:STDOUT: !3 = !{i32 7, !"PIE Level", i32 2}
// CHECK:STDOUT: !4 = !{i32 7, !"uwtable", i32 2}
// CHECK:STDOUT: !5 = !{i32 7, !"Dwarf Version", i32 5}
// CHECK:STDOUT: !6 = !{i32 2, !"Debug Info Version", i32 3}
// CHECK:STDOUT: !7 = !{!8, !8, i64 0}
// CHECK:STDOUT: !8 = !{!"int", !9, i64 0}
// CHECK:STDOUT: !9 = !{!"omnipotent char", !10, i64 0}
// CHECK:STDOUT: !10 = !{!"Simple C++ TBAA"}
// CHECK:STDOUT: !11 = distinct !DISubprogram(name: "Convert", linkageName: "_CConvert.Main", scope: null, file: !1, line: 8, type: !12, spFlags: DISPFlagDefinition, unit: !0)
// CHECK:STDOUT: !12 = !DISubroutineType(types: !13)
// CHECK:STDOUT: !13 = !{null}
// CHECK:STDOUT: !14 = !DILocation(line: 9, column: 12, scope: !11)
// CHECK:STDOUT: !15 = !DILocation(line: 9, column: 3, scope: !11)
// CHECK:STDOUT: !16 = !DILocation(line: 8, column: 1, scope: !11)
// CHECK:STDOUT: !17 = distinct !DISubprogram(name: "Op", linkageName: "_COp.4a199b7f45343bf7:core.Destroy.Core", scope: null, file: !1, line: 9, type: !18, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !21)
// CHECK:STDOUT: !18 = !DISubroutineType(types: !19)
// CHECK:STDOUT: !19 = !{null, !20}
// CHECK:STDOUT: !20 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
// CHECK:STDOUT: !21 = !{!22}
// CHECK:STDOUT: !22 = !DILocalVariable(arg: 1, scope: !17, type: !20)
// CHECK:STDOUT: !23 = !DILocation(line: 9, column: 12, scope: !17)
// CHECK:STDOUT: !24 = distinct !DISubprogram(name: "Op", linkageName: "_COp.95d54adfec6e2c8e:core.Destroy.Core", scope: null, file: !1, line: 9, type: !18, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !25)
// CHECK:STDOUT: !25 = !{!26}
// CHECK:STDOUT: !26 = !DILocalVariable(arg: 1, scope: !24, type: !20)
// CHECK:STDOUT: !27 = !DILocation(line: 9, column: 12, scope: !24)
// CHECK:STDOUT: !28 = distinct !DISubprogram(name: "Op", linkageName: "_COp.5a309bcb12d98030:core.Destroy.Core", scope: null, file: !1, line: 9, type: !18, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !29)
// CHECK:STDOUT: !29 = !{!30}
// CHECK:STDOUT: !30 = !DILocalVariable(arg: 1, scope: !28, type: !20)
// CHECK:STDOUT: !31 = !DILocation(line: 9, column: 12, scope: !28)
// CHECK:STDOUT: !32 = distinct !DISubprogram(name: "Op", linkageName: "_COp.b66d38b36d1f26ac:core.Destroy.Core", scope: null, file: !1, line: 9, type: !18, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !33)
// CHECK:STDOUT: !33 = !{!34}
// CHECK:STDOUT: !34 = !DILocalVariable(arg: 1, scope: !32, type: !20)
// CHECK:STDOUT: !35 = !DILocation(line: 9, column: 12, scope: !32)
// CHECK:STDOUT: !36 = distinct !DISubprogram(name: "Op", linkageName: "_COp.0eaa291c18f0461d:core.Destroy.Core", scope: null, file: !1, line: 9, type: !18, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !37)
// CHECK:STDOUT: !37 = !{!38}
// CHECK:STDOUT: !38 = !DILocalVariable(arg: 1, scope: !36, type: !20)
// CHECK:STDOUT: !39 = !DILocation(line: 9, column: 12, scope: !36)
// CHECK:STDOUT: !40 = distinct !DISubprogram(name: "Op", linkageName: "_COp.50147b96cc245a5c:core.Destroy.Core", scope: null, file: !1, line: 9, type: !18, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !41)
// CHECK:STDOUT: !41 = !{!42}
// CHECK:STDOUT: !42 = !DILocalVariable(arg: 1, scope: !40, type: !20)
// CHECK:STDOUT: !43 = !DILocation(line: 9, column: 12, scope: !40)
// CHECK:STDOUT: !44 = distinct !DISubprogram(name: "Convert", linkageName: "_CConvert.538322f9fda4254f:ImplicitAs.a276ba298c70ba87.Core.4ac926a9bb296667", scope: null, file: !45, line: 105, type: !46, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !48)
// CHECK:STDOUT: !45 = !DIFile(filename: "{{.*}}/prelude/types/optional.carbon", directory: "")
// CHECK:STDOUT: !46 = !DISubroutineType(types: !47)
// CHECK:STDOUT: !47 = !{!20, !20}
// CHECK:STDOUT: !48 = !{!49}
// CHECK:STDOUT: !49 = !DILocalVariable(arg: 1, scope: !44, type: !20)
// CHECK:STDOUT: !50 = !DILocation(line: 106, column: 12, scope: !44)
// CHECK:STDOUT: !51 = !DILocation(line: 106, column: 5, scope: !44)
// CHECK:STDOUT: !52 = distinct !DISubprogram(name: "Convert", linkageName: "_CConvert.Optional.c661605f12aa337a.Core:OptionalAs.1dac4564233fecd1.Core.cdbe4154b421df5e", scope: null, file: !45, line: 95, type: !46, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !53)
// CHECK:STDOUT: !53 = !{!54}
// CHECK:STDOUT: !54 = !DILocalVariable(arg: 1, scope: !52, type: !20)
// CHECK:STDOUT: !55 = !DILocation(line: 97, column: 31, scope: !52)
// CHECK:STDOUT: !56 = !DILocation(line: 96, column: 9, scope: !52)
// CHECK:STDOUT: !57 = !DILocation(line: 96, column: 8, scope: !52)
// CHECK:STDOUT: !58 = !DILocation(line: 97, column: 14, scope: !52)
// CHECK:STDOUT: !59 = !DILocation(line: 97, column: 7, scope: !52)
// CHECK:STDOUT: !60 = !DILocation(line: 99, column: 12, scope: !52)
// CHECK:STDOUT: !61 = !DILocation(line: 99, column: 5, scope: !52)
// CHECK:STDOUT: !62 = distinct !DISubprogram(name: "HasValue", linkageName: "_CHasValue.Optional.Core.8a123cba93150295", scope: null, file: !45, line: 36, type: !46, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !63)
// CHECK:STDOUT: !63 = !{!64}
// CHECK:STDOUT: !64 = !DILocalVariable(arg: 1, scope: !62, type: !20)
// CHECK:STDOUT: !65 = !DILocation(line: 37, column: 12, scope: !62)
// CHECK:STDOUT: !66 = !DILocation(line: 37, column: 5, scope: !62)
// CHECK:STDOUT: !67 = distinct !DISubprogram(name: "Get", linkageName: "_CGet.Optional.Core.8a123cba93150295", scope: null, file: !45, line: 39, type: !46, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !68)
// CHECK:STDOUT: !68 = !{!69}
// CHECK:STDOUT: !69 = !DILocalVariable(arg: 1, scope: !67, type: !20)
// CHECK:STDOUT: !70 = !DILocation(line: 40, column: 12, scope: !67)
// CHECK:STDOUT: !71 = !DILocation(line: 40, column: 5, scope: !67)
// CHECK:STDOUT: !72 = distinct !DISubprogram(name: "Some", linkageName: "_CSome.Optional.Core.0a3165baf8bbb6d3", scope: null, file: !45, line: 33, type: !46, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !73)
// CHECK:STDOUT: !73 = !{!74}
// CHECK:STDOUT: !74 = !DILocalVariable(arg: 1, scope: !72, type: !20)
// CHECK:STDOUT: !75 = !DILocation(line: 34, column: 12, scope: !72)
// CHECK:STDOUT: !76 = !DILocation(line: 34, column: 5, scope: !72)
// CHECK:STDOUT: !77 = distinct !DISubprogram(name: "None", linkageName: "_CNone.Optional.Core.0a3165baf8bbb6d3", scope: null, file: !45, line: 30, type: !78, spFlags: DISPFlagDefinition, unit: !0)
// CHECK:STDOUT: !78 = !DISubroutineType(types: !79)
// CHECK:STDOUT: !79 = !{!20}
// CHECK:STDOUT: !80 = !DILocation(line: 31, column: 5, scope: !77)
// CHECK:STDOUT: !81 = distinct !DISubprogram(name: "Has", linkageName: "_CHas.e8f8f92d3d08d149:OptionalStorage.Core.fc8b3e0dc71c345e", scope: null, file: !45, line: 172, type: !46, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !82)
// CHECK:STDOUT: !82 = !{!83}
// CHECK:STDOUT: !83 = !DILocalVariable(arg: 1, scope: !81, type: !20)
// CHECK:STDOUT: !84 = !DILocation(line: 173, column: 16, scope: !81)
// CHECK:STDOUT: !85 = !DILocation(line: 173, column: 12, scope: !81)
// CHECK:STDOUT: !86 = !DILocation(line: 173, column: 5, scope: !81)
// CHECK:STDOUT: !87 = distinct !DISubprogram(name: "Get", linkageName: "_CGet.e8f8f92d3d08d149:OptionalStorage.Core.fc8b3e0dc71c345e", scope: null, file: !45, line: 175, type: !46, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !88)
// CHECK:STDOUT: !88 = !{!89}
// CHECK:STDOUT: !89 = !DILocalVariable(arg: 1, scope: !87, type: !20)
// CHECK:STDOUT: !90 = !DILocation(line: 176, column: 5, scope: !87)
// CHECK:STDOUT: !91 = distinct !DISubprogram(name: "Some", linkageName: "_CSome.e8f8f92d3d08d149:OptionalStorage.Core.8753681fdb639539", scope: null, file: !45, line: 166, type: !46, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !92)
// CHECK:STDOUT: !92 = !{!93}
// CHECK:STDOUT: !93 = !DILocalVariable(arg: 1, scope: !91, type: !20)
// CHECK:STDOUT: !94 = !DILocation(line: 167, column: 14, scope: !91)
// CHECK:STDOUT: !95 = !DILocation(line: 169, column: 5, scope: !91)
// CHECK:STDOUT: !96 = !DILocation(line: 167, column: 18, scope: !91)
// CHECK:STDOUT: !97 = !DILocation(line: 170, column: 5, scope: !91)
// CHECK:STDOUT:
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