mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 22:02:23 +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.
103 lines
4.8 KiB
Plaintext
103 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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// 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_impl_function.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_impl_function.carbon
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import Core library "io";
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interface SomeInterface(T:! type) {
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fn F(x: T) -> T;
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}
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class SomeParam {}
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class ImplsSomeInterface {}
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impl ImplsSomeInterface as SomeInterface(i32) {
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fn F(x: i32) -> i32 {
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return x + x;
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}
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}
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// TODO: This asserts with "Mangled name collision".
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// impl ImplsSomeInterface as SomeInterface(SomeParam) {
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// fn F(x: SomeParam) -> SomeParam {
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// return {};
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// }
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// }
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fn CallGenericMethod(T:! type, U:! SomeInterface(T), x: T) -> T {
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return U.F(x);
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}
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fn G() {
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var out : i32 = CallGenericMethod(i32, ImplsSomeInterface, 10);
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Core.Print(out);
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// TODO: Fix above
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// CallGenericMethod(SomeParam, ImplsSomeInterface, {});
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}
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// CHECK:STDOUT: ; ModuleID = 'call_impl_function.carbon'
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// CHECK:STDOUT: source_filename = "call_impl_function.carbon"
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// CHECK:STDOUT:
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// CHECK:STDOUT: @printf.int.format = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1
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// CHECK:STDOUT:
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// CHECK:STDOUT: define i32 @"_CF.ImplsSomeInterface.Main:SomeInterface.Main"(i32 %x) !dbg !4 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: %int.sadd = add i32 %x, %x, !dbg !7
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// CHECK:STDOUT: ret i32 %int.sadd, !dbg !8
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: define void @_CG.Main() !dbg !9 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: %out.var = alloca i32, align 4, !dbg !10
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// CHECK:STDOUT: call void @llvm.lifetime.start.p0(i64 4, ptr %out.var), !dbg !10
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// CHECK:STDOUT: %CallGenericMethod.call = call i32 @_CCallGenericMethod.Main.b330a91dfda257ee(i32 10), !dbg !11
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// CHECK:STDOUT: store i32 %CallGenericMethod.call, ptr %out.var, align 4, !dbg !10
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// CHECK:STDOUT: %.loc40 = load i32, ptr %out.var, align 4, !dbg !12
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// CHECK:STDOUT: %print.int = call i32 (ptr, ...) @printf(ptr @printf.int.format, i32 %.loc40), !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: 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: define linkonce_odr i32 @_CCallGenericMethod.Main.b330a91dfda257ee(i32 %x) !dbg !15 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: %.loc35_15 = call i32 @"_CF.ImplsSomeInterface.Main:SomeInterface.Main"(i32 %x), !dbg !16
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// CHECK:STDOUT: ret i32 %.loc35_15, !dbg !17
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: declare i32 @printf(ptr, ...)
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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_impl_function.carbon", directory: "")
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// CHECK:STDOUT: !4 = distinct !DISubprogram(name: "F", linkageName: "_CF.ImplsSomeInterface.Main:SomeInterface.Main", scope: null, file: !3, line: 21, 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: 22, column: 12, scope: !4)
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// CHECK:STDOUT: !8 = !DILocation(line: 22, column: 5, scope: !4)
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// CHECK:STDOUT: !9 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main", scope: null, file: !3, line: 38, type: !5, spFlags: DISPFlagDefinition, unit: !2)
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// CHECK:STDOUT: !10 = !DILocation(line: 39, column: 3, scope: !9)
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// CHECK:STDOUT: !11 = !DILocation(line: 39, column: 19, scope: !9)
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// CHECK:STDOUT: !12 = !DILocation(line: 40, column: 14, scope: !9)
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// CHECK:STDOUT: !13 = !DILocation(line: 40, column: 3, scope: !9)
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// CHECK:STDOUT: !14 = !DILocation(line: 38, column: 1, scope: !9)
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// CHECK:STDOUT: !15 = distinct !DISubprogram(name: "CallGenericMethod", linkageName: "_CCallGenericMethod.Main.b330a91dfda257ee", scope: null, file: !3, line: 34, type: !5, spFlags: DISPFlagDefinition, unit: !2)
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// CHECK:STDOUT: !16 = !DILocation(line: 35, column: 10, scope: !15)
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// CHECK:STDOUT: !17 = !DILocation(line: 35, column: 3, scope: !15)
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