mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-01 22:02:45 +01:00
Richard SmithandGeoff Romer
ce50f181f1
When a `var` is not explicitly given an initializer, initialize it in one of two ways: * If its type implements the new interface `Core.Default`, call `Core.Default.Op` to initialize it. * Otherwise, if its type implements `UnformedInit`, leave it in an unformed state. For now, this is always an uninitialized state, but that will change in the future. * If neither of those apply, the `var` declaration is ill-formed. This is a step towards implementing leads decision #6739 and proposals #257 and #5913. Assisted-by: Gemini 3.1 Pro via Antigravity --------- Co-authored-by: Geoff Romer <gromer@google.com>
41 lines
2.1 KiB
Plaintext
41 lines
2.1 KiB
Plaintext
// 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/global/decl.carbon
|
|
// TIP: To dump output, run:
|
|
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/lower/testdata/global/decl.carbon
|
|
var a: i32;
|
|
|
|
// CHECK:STDOUT: ; ModuleID = 'decl.carbon'
|
|
// CHECK:STDOUT: source_filename = "decl.carbon"
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: @_Ca.Main = global i32 0
|
|
// CHECK:STDOUT: @llvm.global_ctors = appending global [1 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 0, ptr @_C__global_init.Main, ptr null }]
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: ; Function Attrs: nounwind
|
|
// CHECK:STDOUT: define internal void @_C__global_init.Main() #0 !dbg !4 {
|
|
// CHECK:STDOUT: entry:
|
|
// CHECK:STDOUT: store i32 poison, ptr @_Ca.Main, align 4, !dbg !7
|
|
// CHECK:STDOUT: ret void, !dbg !8
|
|
// CHECK:STDOUT: }
|
|
// CHECK:STDOUT:
|
|
// CHECK:STDOUT: attributes #0 = { nounwind }
|
|
// 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: "decl.carbon", directory: "")
|
|
// CHECK:STDOUT: !4 = distinct !DISubprogram(name: "__global_init", linkageName: "_C__global_init.Main", scope: null, file: !3, type: !5, spFlags: DISPFlagDefinition, unit: !2)
|
|
// CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
|
|
// CHECK:STDOUT: !6 = !{null}
|
|
// CHECK:STDOUT: !7 = !DILocation(line: 12, column: 1, scope: !4)
|
|
// CHECK:STDOUT: !8 = !DILocation(line: 0, scope: !4)
|