mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-04 16:41:06 +01:00
Richard Smith
42c783defa
The same specific function will (eventually) be emitted as part of lowering multiple different source files, so don't give them unique external linkage.
90 lines
4.1 KiB
Plaintext
90 lines
4.1 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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// 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/function/generic/call_different_associated_const.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/function/generic/call_different_associated_const.carbon
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// Cannot coalesce the lowering for G specifics, as they have associated contants of different types.
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// Check different functions are still emitted when trying to deduplicate emitted definitons.
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interface I {
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let T:! type;
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// TODO: An interface with multiple associated entities is not yet
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// implemented in mangling.
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}
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fn G(U:! I) {
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var x: U.T;
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}
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class C {}
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impl C as I where .T = bool {
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}
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class D {}
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impl D as I where .T = i32 {
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}
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fn H() {
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G(C);
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G(D);
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}
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// CHECK:STDOUT: ; ModuleID = 'call_different_associated_const.carbon'
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// CHECK:STDOUT: source_filename = "call_different_associated_const.carbon"
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// CHECK:STDOUT:
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// CHECK:STDOUT: define void @_CH.Main() !dbg !4 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: call void @_CG.Main.47c020a542e13d96(), !dbg !7
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// CHECK:STDOUT: call void @_CG.Main.a10ac7cbfa858009(), !dbg !8
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// CHECK:STDOUT: ret void, !dbg !9
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: define linkonce_odr void @_CG.Main.47c020a542e13d96() !dbg !10 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: %x.var = alloca i1, align 1, !dbg !11
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// CHECK:STDOUT: call void @llvm.lifetime.start.p0(i64 1, ptr %x.var), !dbg !11
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// CHECK:STDOUT: ret void, !dbg !12
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: define linkonce_odr void @_CG.Main.a10ac7cbfa858009() !dbg !13 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: %x.var = alloca i32, align 4, !dbg !14
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// CHECK:STDOUT: call void @llvm.lifetime.start.p0(i64 4, ptr %x.var), !dbg !14
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// CHECK:STDOUT: ret void, !dbg !15
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
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// CHECK:STDOUT: declare void @llvm.lifetime.start.p0(i64 immarg, ptr captures(none)) #0
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; uselistorder directives
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// CHECK:STDOUT: uselistorder ptr @llvm.lifetime.start.p0, { 1, 0 }
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// CHECK:STDOUT:
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// CHECK:STDOUT: attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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// CHECK:STDOUT:
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// CHECK:STDOUT: !llvm.module.flags = !{!0, !1}
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// CHECK:STDOUT: !llvm.dbg.cu = !{!2}
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// CHECK:STDOUT:
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// CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
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// CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
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// CHECK:STDOUT: !2 = distinct !DICompileUnit(language: DW_LANG_C, file: !3, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
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// CHECK:STDOUT: !3 = !DIFile(filename: "call_different_associated_const.carbon", directory: "")
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// CHECK:STDOUT: !4 = distinct !DISubprogram(name: "H", linkageName: "_CH.Main", scope: null, file: !3, line: 33, type: !5, spFlags: DISPFlagDefinition, unit: !2)
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// CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
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// CHECK:STDOUT: !6 = !{}
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// CHECK:STDOUT: !7 = !DILocation(line: 34, column: 3, scope: !4)
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// CHECK:STDOUT: !8 = !DILocation(line: 35, column: 3, scope: !4)
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// CHECK:STDOUT: !9 = !DILocation(line: 33, column: 1, scope: !4)
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// CHECK:STDOUT: !10 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main.47c020a542e13d96", scope: null, file: !3, line: 20, type: !5, spFlags: DISPFlagDefinition, unit: !2)
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// CHECK:STDOUT: !11 = !DILocation(line: 21, column: 3, scope: !10)
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// CHECK:STDOUT: !12 = !DILocation(line: 20, column: 1, scope: !10)
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// CHECK:STDOUT: !13 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main.a10ac7cbfa858009", scope: null, file: !3, line: 20, type: !5, spFlags: DISPFlagDefinition, unit: !2)
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// CHECK:STDOUT: !14 = !DILocation(line: 21, column: 3, scope: !13)
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// CHECK:STDOUT: !15 = !DILocation(line: 20, column: 1, scope: !13)
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