mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 21:10:12 +01:00
David Blaikie
88b3605eac
This avoids duplicate module flags when compiling C++ interop with debug info. Assisted-by: Gemini via Antigravity
106 lines
4.8 KiB
Plaintext
106 lines
4.8 KiB
Plaintext
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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// This is an integration test for the Core.String in the prelude, so use the
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// real prelude.
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// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/full.carbon
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// EXTRA-ARGS: --target=x86_64-linux-gnu
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//
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// AUTOUPDATE
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// TIP: To test this file alone, run:
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// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/lower/testdata/primitives/string.carbon
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// TIP: To dump output, run:
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// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/lower/testdata/primitives/string.carbon
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fn F(s: str);
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fn G() {
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F("Hello");
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}
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fn H() {
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// This can reuse the same string literal object.
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let v: str = "Hello";
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F(v);
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}
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fn I() {
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// This can't.
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let v: str = "World";
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F(v);
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}
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fn Copy(s: str) -> str {
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return s;
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}
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// CHECK:STDOUT: ; ModuleID = 'string.carbon'
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// CHECK:STDOUT: source_filename = "string.carbon"
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// CHECK:STDOUT:
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// CHECK:STDOUT: @0 = private unnamed_addr constant [6 x i8] c"Hello\00", align 1
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// CHECK:STDOUT: @1 = private unnamed_addr constant [6 x i8] c"World\00", align 1
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// CHECK:STDOUT: @String.val.75d.String.val = internal constant { ptr, i64 } { ptr @0, i64 5 }
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// CHECK:STDOUT: @String.val.2f1.String.val = internal constant { ptr, i64 } { ptr @1, i64 5 }
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// CHECK:STDOUT:
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// CHECK:STDOUT: declare void @_CF.Main(ptr)
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: nounwind
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// CHECK:STDOUT: define void @_CG.Main() #0 !dbg !4 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: call void @_CF.Main(ptr @String.val.75d.String.val), !dbg !7
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// CHECK:STDOUT: ret void, !dbg !8
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: nounwind
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// CHECK:STDOUT: define void @_CH.Main() #0 !dbg !9 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: call void @_CF.Main(ptr @String.val.75d.String.val), !dbg !10
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// CHECK:STDOUT: ret void, !dbg !11
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: nounwind
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// CHECK:STDOUT: define void @_CI.Main() #0 !dbg !12 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: call void @_CF.Main(ptr @String.val.2f1.String.val), !dbg !13
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// CHECK:STDOUT: ret void, !dbg !14
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: nounwind
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// CHECK:STDOUT: define void @_CCopy.Main(ptr sret({ ptr, i64 }) %return, ptr %s) #0 !dbg !15 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: call void @"_COp.String.Core:Copy.Core"(ptr %return, ptr %s), !dbg !21
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// CHECK:STDOUT: ret void, !dbg !22
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: declare void @"_COp.String.Core:Copy.Core"(ptr sret({ ptr, i64 }), ptr)
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// CHECK:STDOUT:
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// CHECK:STDOUT: attributes #0 = { nounwind }
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// CHECK:STDOUT:
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// CHECK:STDOUT: !llvm.dbg.cu = !{!0}
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// CHECK:STDOUT: !llvm.module.flags = !{!2, !3}
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// CHECK:STDOUT:
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// CHECK:STDOUT: !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
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// CHECK:STDOUT: !1 = !DIFile(filename: "string.carbon", directory: "")
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// CHECK:STDOUT: !2 = !{i32 7, !"Dwarf Version", i32 5}
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// CHECK:STDOUT: !3 = !{i32 2, !"Debug Info Version", i32 3}
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// CHECK:STDOUT: !4 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main", scope: null, file: !1, line: 18, type: !5, spFlags: DISPFlagDefinition, unit: !0)
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// CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
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// CHECK:STDOUT: !6 = !{null}
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// CHECK:STDOUT: !7 = !DILocation(line: 19, column: 3, scope: !4)
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// CHECK:STDOUT: !8 = !DILocation(line: 18, column: 1, scope: !4)
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// CHECK:STDOUT: !9 = distinct !DISubprogram(name: "H", linkageName: "_CH.Main", scope: null, file: !1, line: 22, type: !5, spFlags: DISPFlagDefinition, unit: !0)
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// CHECK:STDOUT: !10 = !DILocation(line: 25, column: 3, scope: !9)
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// CHECK:STDOUT: !11 = !DILocation(line: 22, column: 1, scope: !9)
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// CHECK:STDOUT: !12 = distinct !DISubprogram(name: "I", linkageName: "_CI.Main", scope: null, file: !1, line: 28, type: !5, spFlags: DISPFlagDefinition, unit: !0)
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// CHECK:STDOUT: !13 = !DILocation(line: 31, column: 3, scope: !12)
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// CHECK:STDOUT: !14 = !DILocation(line: 28, column: 1, scope: !12)
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// CHECK:STDOUT: !15 = distinct !DISubprogram(name: "Copy", linkageName: "_CCopy.Main", scope: null, file: !1, line: 34, type: !16, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !19)
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// CHECK:STDOUT: !16 = !DISubroutineType(types: !17)
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// CHECK:STDOUT: !17 = !{!18, !18}
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// CHECK:STDOUT: !18 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
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// CHECK:STDOUT: !19 = !{!20}
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// CHECK:STDOUT: !20 = !DILocalVariable(arg: 1, scope: !15, type: !18)
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// CHECK:STDOUT: !21 = !DILocation(line: 35, column: 10, scope: !15)
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// CHECK:STDOUT: !22 = !DILocation(line: 35, column: 3, scope: !15)
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