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carbon-lang/toolchain/lower/testdata/operators/overloaded.carbon
T
Richard Smith 05cc09daca Fix cross-package signature mismatches. (#7232) 
Fixes link failures when referencing a symbol involving a fingerprint
from a different package.

Previously we included the `Namespace`'s `import_id` as part of its
fingerprint, which caused local and imported namespaces to get different
fingerprints. We now store the `import_id` on the `NameScope` instead of
on the `Namespace` inst to avoid this problem.

Also, when we reach a package-level `NameScopeId`, consistently
fingerprint it as a (package name, library name) pair. Previously the
fingerprinting depended on whether it was imported or not, as an
imported `NameScopeId` had a parent scope (the current package). We need
to include the library name here so that private entities with the same
name in different libraries have different fingerprints.
2026-05-21 00:02:29 +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/operators/overloaded.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/lower/testdata/operators/overloaded.carbon
class Number {
var is_positive: bool;
}
impl Number as Core.Negate where .Result = Number {
fn Op[self: Number]() -> Number {
return {.is_positive = not self.is_positive};
}
}
impl Number as Core.MulWith(Number) where .Result = Number {
fn Op[self: Number](other: Number) -> Number {
return {.is_positive = (self.is_positive and other.is_positive) or
(not self.is_positive and not other.is_positive)};
}
}
fn Calculate(a: Number, b: Number) -> Number {
return -a * b;
}
// CHECK:STDOUT: ; ModuleID = 'overloaded.carbon'
// CHECK:STDOUT: source_filename = "overloaded.carbon"
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @"_COp.Number.Main:Negate.Core"(ptr sret({ i1 }) %return, ptr %self) #0 !dbg !4 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.loc19_36.1.is_positive = getelementptr inbounds nuw { i1 }, ptr %self, i32 0, i32 0, !dbg !10
// CHECK:STDOUT: %.loc19_36.2 = load i8, ptr %.loc19_36.1.is_positive, align 1, !dbg !10
// CHECK:STDOUT: %.loc19_36.21 = trunc i8 %.loc19_36.2 to i1, !dbg !10
// CHECK:STDOUT: %.loc19_28 = xor i1 %.loc19_36.21, true, !dbg !11
// CHECK:STDOUT: %.loc19_48.2.is_positive = getelementptr inbounds nuw { i1 }, ptr %return, i32 0, i32 0, !dbg !12
// CHECK:STDOUT: %.loc19_48.3 = zext i1 %.loc19_28 to i8, !dbg !12
// CHECK:STDOUT: store i8 %.loc19_48.3, ptr %.loc19_48.2.is_positive, align 1, !dbg !12
// CHECK:STDOUT: ret void, !dbg !13
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @"_COp.Number.Main:MulWith.3dbfed2bcb44ac1d.Core"(ptr sret({ i1 }) %return, ptr %self, ptr %other) #0 !dbg !14 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.loc24_33.1.is_positive = getelementptr inbounds nuw { i1 }, ptr %self, i32 0, i32 0, !dbg !20
// CHECK:STDOUT: %.loc24_33.2 = load i8, ptr %.loc24_33.1.is_positive, align 1, !dbg !20
// CHECK:STDOUT: %.loc24_33.21 = trunc i8 %.loc24_33.2 to i1, !dbg !20
// CHECK:STDOUT: br i1 %.loc24_33.21, label %and.rhs.loc24, label %and.result.loc24, !dbg !20
// CHECK:STDOUT:
// CHECK:STDOUT: and.rhs.loc24: ; preds = %entry
// CHECK:STDOUT: %.loc24_55.1.is_positive = getelementptr inbounds nuw { i1 }, ptr %other, i32 0, i32 0, !dbg !21
// CHECK:STDOUT: %.loc24_55.2 = load i8, ptr %.loc24_55.1.is_positive, align 1, !dbg !21
// CHECK:STDOUT: %.loc24_55.22 = trunc i8 %.loc24_55.2 to i1, !dbg !21
// CHECK:STDOUT: br label %and.result.loc24, !dbg !20
// CHECK:STDOUT:
// CHECK:STDOUT: and.result.loc24: ; preds = %and.rhs.loc24, %entry
// CHECK:STDOUT: %0 = phi i1 [ false, %entry ], [ %.loc24_55.22, %and.rhs.loc24 ]
// CHECK:STDOUT: %.loc24_69.1 = xor i1 %0, true, !dbg !22
// CHECK:STDOUT: br i1 %.loc24_69.1, label %or.rhs, label %or.result, !dbg !22
// CHECK:STDOUT:
// CHECK:STDOUT: or.rhs: ; preds = %and.result.loc24
// CHECK:STDOUT: %.loc25_38.1.is_positive = getelementptr inbounds nuw { i1 }, ptr %self, i32 0, i32 0, !dbg !23
// CHECK:STDOUT: %.loc25_38.2 = load i8, ptr %.loc25_38.1.is_positive, align 1, !dbg !23
// CHECK:STDOUT: %.loc25_38.23 = trunc i8 %.loc25_38.2 to i1, !dbg !23
// CHECK:STDOUT: %.loc25_30 = xor i1 %.loc25_38.23, true, !dbg !24
// CHECK:STDOUT: br i1 %.loc25_30, label %and.rhs.loc25, label %and.result.loc25, !dbg !24
// CHECK:STDOUT:
// CHECK:STDOUT: and.rhs.loc25: ; preds = %or.rhs
// CHECK:STDOUT: %.loc25_64.1.is_positive = getelementptr inbounds nuw { i1 }, ptr %other, i32 0, i32 0, !dbg !25
// CHECK:STDOUT: %.loc25_64.2 = load i8, ptr %.loc25_64.1.is_positive, align 1, !dbg !25
// CHECK:STDOUT: %.loc25_64.24 = trunc i8 %.loc25_64.2 to i1, !dbg !25
// CHECK:STDOUT: %.loc25_55 = xor i1 %.loc25_64.24, true, !dbg !26
// CHECK:STDOUT: br label %and.result.loc25, !dbg !24
// CHECK:STDOUT:
// CHECK:STDOUT: and.result.loc25: ; preds = %and.rhs.loc25, %or.rhs
// CHECK:STDOUT: %1 = phi i1 [ false, %or.rhs ], [ %.loc25_55, %and.rhs.loc25 ]
// CHECK:STDOUT: br label %or.result, !dbg !22
// CHECK:STDOUT:
// CHECK:STDOUT: or.result: ; preds = %and.result.loc25, %and.result.loc24
// CHECK:STDOUT: %2 = phi i1 [ true, %and.result.loc24 ], [ %1, %and.result.loc25 ]
// CHECK:STDOUT: %.loc25_77.2.is_positive = getelementptr inbounds nuw { i1 }, ptr %return, i32 0, i32 0, !dbg !27
// CHECK:STDOUT: %.loc25_77.3 = zext i1 %2 to i8, !dbg !27
// CHECK:STDOUT: store i8 %.loc25_77.3, ptr %.loc25_77.2.is_positive, align 1, !dbg !27
// CHECK:STDOUT: ret void, !dbg !28
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CCalculate.Main(ptr sret({ i1 }) %return, ptr %a, ptr %b) #0 !dbg !29 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.loc30_10.1.temp = alloca { i1 }, align 8, !dbg !33
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc30_10.1.temp), !dbg !33
// CHECK:STDOUT: call void @"_COp.Number.Main:Negate.Core"(ptr %.loc30_10.1.temp, ptr %a), !dbg !33
// CHECK:STDOUT: call void @"_COp.Number.Main:MulWith.3dbfed2bcb44ac1d.Core"(ptr %return, ptr %.loc30_10.1.temp, ptr %b), !dbg !33
// CHECK:STDOUT: call void @"_COp.78d5830a4b83d551:core.Destroy.Core"(ptr %.loc30_10.1.temp), !dbg !33
// CHECK:STDOUT: ret void, !dbg !34
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define weak_odr void @"_COp.86fb9acde14db001:core.Destroy.Core"(ptr %self) #0 !dbg !35 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !40
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define weak_odr void @"_COp.78d5830a4b83d551:core.Destroy.Core"(ptr %self) #0 !dbg !41 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !44
// 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)) #1
// CHECK:STDOUT:
// CHECK:STDOUT: attributes #0 = { nounwind }
// CHECK:STDOUT: attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
// CHECK:STDOUT:
// CHECK:STDOUT: !llvm.module.flags = !{!0, !1}
// CHECK:STDOUT: !llvm.dbg.cu = !{!2}
// CHECK:STDOUT:
// CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
// CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
// CHECK:STDOUT: !2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
// CHECK:STDOUT: !3 = !DIFile(filename: "overloaded.carbon", directory: "")
// CHECK:STDOUT: !4 = distinct !DISubprogram(name: "Op", linkageName: "_COp.Number.Main:Negate.Core", scope: null, file: !3, line: 18, type: !5, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !8)
// CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
// CHECK:STDOUT: !6 = !{!7, !7}
// CHECK:STDOUT: !7 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
// CHECK:STDOUT: !8 = !{!9}
// CHECK:STDOUT: !9 = !DILocalVariable(arg: 1, scope: !4, type: !7)
// CHECK:STDOUT: !10 = !DILocation(line: 19, column: 32, scope: !4)
// CHECK:STDOUT: !11 = !DILocation(line: 19, column: 28, scope: !4)
// CHECK:STDOUT: !12 = !DILocation(line: 19, column: 12, scope: !4)
// CHECK:STDOUT: !13 = !DILocation(line: 19, column: 5, scope: !4)
// CHECK:STDOUT: !14 = distinct !DISubprogram(name: "Op", linkageName: "_COp.Number.Main:MulWith.3dbfed2bcb44ac1d.Core", scope: null, file: !3, line: 23, type: !15, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !17)
// CHECK:STDOUT: !15 = !DISubroutineType(types: !16)
// CHECK:STDOUT: !16 = !{!7, !7, !7}
// CHECK:STDOUT: !17 = !{!18, !19}
// CHECK:STDOUT: !18 = !DILocalVariable(arg: 1, scope: !14, type: !7)
// CHECK:STDOUT: !19 = !DILocalVariable(arg: 2, scope: !14, type: !7)
// CHECK:STDOUT: !20 = !DILocation(line: 24, column: 29, scope: !14)
// CHECK:STDOUT: !21 = !DILocation(line: 24, column: 50, scope: !14)
// CHECK:STDOUT: !22 = !DILocation(line: 24, column: 28, scope: !14)
// CHECK:STDOUT: !23 = !DILocation(line: 25, column: 34, scope: !14)
// CHECK:STDOUT: !24 = !DILocation(line: 25, column: 30, scope: !14)
// CHECK:STDOUT: !25 = !DILocation(line: 25, column: 59, scope: !14)
// CHECK:STDOUT: !26 = !DILocation(line: 25, column: 55, scope: !14)
// CHECK:STDOUT: !27 = !DILocation(line: 24, column: 12, scope: !14)
// CHECK:STDOUT: !28 = !DILocation(line: 24, column: 5, scope: !14)
// CHECK:STDOUT: !29 = distinct !DISubprogram(name: "Calculate", linkageName: "_CCalculate.Main", scope: null, file: !3, line: 29, type: !15, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !30)
// CHECK:STDOUT: !30 = !{!31, !32}
// CHECK:STDOUT: !31 = !DILocalVariable(arg: 1, scope: !29, type: !7)
// CHECK:STDOUT: !32 = !DILocalVariable(arg: 2, scope: !29, type: !7)
// CHECK:STDOUT: !33 = !DILocation(line: 30, column: 10, scope: !29)
// CHECK:STDOUT: !34 = !DILocation(line: 30, column: 3, scope: !29)
// CHECK:STDOUT: !35 = distinct !DISubprogram(name: "Op", linkageName: "_COp.86fb9acde14db001:core.Destroy.Core", scope: null, file: !3, line: 30, type: !36, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !38)
// CHECK:STDOUT: !36 = !DISubroutineType(types: !37)
// CHECK:STDOUT: !37 = !{null, !7}
// CHECK:STDOUT: !38 = !{!39}
// CHECK:STDOUT: !39 = !DILocalVariable(arg: 1, scope: !35, type: !7)
// CHECK:STDOUT: !40 = !DILocation(line: 30, column: 10, scope: !35)
// CHECK:STDOUT: !41 = distinct !DISubprogram(name: "Op", linkageName: "_COp.78d5830a4b83d551:core.Destroy.Core", scope: null, file: !3, line: 30, type: !36, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !42)
// CHECK:STDOUT: !42 = !{!43}
// CHECK:STDOUT: !43 = !DILocalVariable(arg: 1, scope: !41, type: !7)
// CHECK:STDOUT: !44 = !DILocation(line: 30, column: 10, scope: !41)
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