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carbon-lang/toolchain/lower/testdata/function/generic/import.carbon
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Chandler Carruth 0a679504a5 Update LLVM again to 2025-08-09 (#5958) 
This lets us pick up another API update to creating lifetimes, as well
as the consequent test updates.
2025-08-14 19:19:27 +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/int.carbon
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/lower/testdata/function/generic/import.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/lower/testdata/function/generic/import.carbon
// Test that we can import and call generic functions across libraries, both
// when the generic is defined in a directly imported library and when it's
// defined in an indirectly imported library.
// --- indirectly_imported.carbon
library "[[@TEST_NAME]]";
fn IndirectDeclared();
fn IndirectDefined() {}
fn IndirectGeneric(T:! type, x: T*) -> T* {
IndirectDeclared();
IndirectDefined();
return x;
}
// --- directly_imported.carbon
library "[[@TEST_NAME]]";
import library "indirectly_imported";
fn DirectDeclared();
fn DirectDefined() {}
fn DirectGeneric(T:! type, y: T*) -> T* {
DirectDeclared();
DirectDefined();
return IndirectGeneric(T, y);
}
// --- use.carbon
library "[[@TEST_NAME]]";
import library "directly_imported";
fn Call() -> i32 {
var n: i32 = 0;
var p: i32* = DirectGeneric(i32, &n);
return *p;
}
// CHECK:STDOUT: ; ModuleID = 'indirectly_imported.carbon'
// CHECK:STDOUT: source_filename = "indirectly_imported.carbon"
// CHECK:STDOUT:
// CHECK:STDOUT: declare void @_CIndirectDeclared.Main()
// CHECK:STDOUT:
// CHECK:STDOUT: define void @_CIndirectDefined.Main() !dbg !4 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !7
// CHECK:STDOUT: }
// 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, file: !3, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
// CHECK:STDOUT: !3 = !DIFile(filename: "indirectly_imported.carbon", directory: "")
// CHECK:STDOUT: !4 = distinct !DISubprogram(name: "IndirectDefined", linkageName: "_CIndirectDefined.Main", scope: null, file: !3, line: 6, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
// CHECK:STDOUT: !6 = !{}
// CHECK:STDOUT: !7 = !DILocation(line: 6, column: 1, scope: !4)
// CHECK:STDOUT: ; ModuleID = 'directly_imported.carbon'
// CHECK:STDOUT: source_filename = "directly_imported.carbon"
// CHECK:STDOUT:
// CHECK:STDOUT: declare void @_CDirectDeclared.Main()
// CHECK:STDOUT:
// CHECK:STDOUT: define void @_CDirectDefined.Main() !dbg !4 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !7
// CHECK:STDOUT: }
// 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, file: !3, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
// CHECK:STDOUT: !3 = !DIFile(filename: "directly_imported.carbon", directory: "")
// CHECK:STDOUT: !4 = distinct !DISubprogram(name: "DirectDefined", linkageName: "_CDirectDefined.Main", scope: null, file: !3, line: 8, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
// CHECK:STDOUT: !6 = !{}
// CHECK:STDOUT: !7 = !DILocation(line: 8, column: 1, scope: !4)
// CHECK:STDOUT: ; ModuleID = 'use.carbon'
// CHECK:STDOUT: source_filename = "use.carbon"
// CHECK:STDOUT:
// CHECK:STDOUT: define i32 @_CCall.Main() !dbg !4 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %n.var = alloca i32, align 4, !dbg !7
// CHECK:STDOUT: %p.var = alloca ptr, align 8, !dbg !8
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %n.var), !dbg !7
// CHECK:STDOUT: store i32 0, ptr %n.var, align 4, !dbg !7
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %p.var), !dbg !8
// CHECK:STDOUT: %DirectGeneric.call = call ptr @_CDirectGeneric.Main.b88d1103f417c6d4(ptr %n.var), !dbg !9
// CHECK:STDOUT: store ptr %DirectGeneric.call, ptr %p.var, align 8, !dbg !8
// CHECK:STDOUT: %.loc9_11 = load ptr, ptr %p.var, align 8, !dbg !10
// CHECK:STDOUT: %.loc9_10.2 = load i32, ptr %.loc9_11, align 4, !dbg !11
// CHECK:STDOUT: ret i32 %.loc9_10.2, !dbg !12
// 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)) #0
// CHECK:STDOUT:
// CHECK:STDOUT: define linkonce_odr ptr @_CDirectGeneric.Main.b88d1103f417c6d4(ptr %y) !dbg !13 {
// CHECK:STDOUT: call void @_CDirectDeclared.Main(), !dbg !15
// CHECK:STDOUT: call void @_CDirectDefined.Main(), !dbg !16
// CHECK:STDOUT: %1 = call ptr @_CIndirectGeneric.Main.b88d1103f417c6d4(ptr %y), !dbg !17
// CHECK:STDOUT: ret ptr %1, !dbg !18
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: declare void @_CDirectDeclared.Main()
// CHECK:STDOUT:
// CHECK:STDOUT: declare void @_CDirectDefined.Main()
// CHECK:STDOUT:
// CHECK:STDOUT: define linkonce_odr ptr @_CIndirectGeneric.Main.b88d1103f417c6d4(ptr %x) !dbg !19 {
// CHECK:STDOUT: call void @_CIndirectDeclared.Main(), !dbg !21
// CHECK:STDOUT: call void @_CIndirectDefined.Main(), !dbg !22
// CHECK:STDOUT: ret ptr %x, !dbg !23
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: declare void @_CIndirectDeclared.Main()
// CHECK:STDOUT:
// CHECK:STDOUT: declare void @_CIndirectDefined.Main()
// CHECK:STDOUT:
// CHECK:STDOUT: ; uselistorder directives
// CHECK:STDOUT: uselistorder ptr @llvm.lifetime.start.p0, { 1, 0 }
// CHECK:STDOUT:
// CHECK:STDOUT: attributes #0 = { 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, file: !3, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
// CHECK:STDOUT: !3 = !DIFile(filename: "use.carbon", directory: "")
// CHECK:STDOUT: !4 = distinct !DISubprogram(name: "Call", linkageName: "_CCall.Main", scope: null, file: !3, line: 6, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
// CHECK:STDOUT: !6 = !{}
// CHECK:STDOUT: !7 = !DILocation(line: 7, column: 3, scope: !4)
// CHECK:STDOUT: !8 = !DILocation(line: 8, column: 3, scope: !4)
// CHECK:STDOUT: !9 = !DILocation(line: 8, column: 17, scope: !4)
// CHECK:STDOUT: !10 = !DILocation(line: 9, column: 11, scope: !4)
// CHECK:STDOUT: !11 = !DILocation(line: 9, column: 10, scope: !4)
// CHECK:STDOUT: !12 = !DILocation(line: 9, column: 3, scope: !4)
// CHECK:STDOUT: !13 = distinct !DISubprogram(name: "DirectGeneric", linkageName: "_CDirectGeneric.Main.b88d1103f417c6d4", scope: null, file: !14, line: 10, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !14 = !DIFile(filename: "directly_imported.carbon", directory: "")
// CHECK:STDOUT: !15 = !DILocation(line: 11, column: 3, scope: !13)
// CHECK:STDOUT: !16 = !DILocation(line: 12, column: 3, scope: !13)
// CHECK:STDOUT: !17 = !DILocation(line: 13, column: 10, scope: !13)
// CHECK:STDOUT: !18 = !DILocation(line: 13, column: 3, scope: !13)
// CHECK:STDOUT: !19 = distinct !DISubprogram(name: "IndirectGeneric", linkageName: "_CIndirectGeneric.Main.b88d1103f417c6d4", scope: null, file: !20, line: 8, type: !5, spFlags: DISPFlagDefinition, unit: !2)
// CHECK:STDOUT: !20 = !DIFile(filename: "indirectly_imported.carbon", directory: "")
// CHECK:STDOUT: !21 = !DILocation(line: 9, column: 3, scope: !19)
// CHECK:STDOUT: !22 = !DILocation(line: 10, column: 3, scope: !19)
// CHECK:STDOUT: !23 = !DILocation(line: 11, column: 3, scope: !19)
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