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.
107 lines
5.3 KiB
Plaintext
107 lines
5.3 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_basic_depth.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_basic_depth.carbon
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// Builds on `call_basic.carbon`. Checks definitions are emitted with deeper
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// call stack, i.e., when functions can be type checked without looking at the
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// specific calling context.
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fn F[T:! type](x: T) {
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}
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fn H[T:! type](x: T) -> T {
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F(x);
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return x;
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}
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fn G[T:! type](x: T) -> T {
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H(x);
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F(x);
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return x;
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}
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fn M() {
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var n: i32 = 0;
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var m: i32;
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F(n);
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m = G(n);
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}
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// CHECK:STDOUT: ; ModuleID = 'call_basic_depth.carbon'
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// CHECK:STDOUT: source_filename = "call_basic_depth.carbon"
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// CHECK:STDOUT:
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// CHECK:STDOUT: define void @_CM.Main() !dbg !4 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: %n.var = alloca i32, align 4, !dbg !7
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// CHECK:STDOUT: %m.var = alloca i32, align 4, !dbg !8
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// CHECK:STDOUT: call void @llvm.lifetime.start.p0(i64 4, ptr %n.var), !dbg !7
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// CHECK:STDOUT: store i32 0, ptr %n.var, align 4, !dbg !7
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// CHECK:STDOUT: call void @llvm.lifetime.start.p0(i64 4, ptr %m.var), !dbg !8
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// CHECK:STDOUT: %.loc32 = load i32, ptr %n.var, align 4, !dbg !9
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// CHECK:STDOUT: call void @_CF.Main.b88d1103f417c6d4(i32 %.loc32), !dbg !10
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// CHECK:STDOUT: %.loc33 = load i32, ptr %n.var, align 4, !dbg !11
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// CHECK:STDOUT: %G.call = call i32 @_CG.Main.b88d1103f417c6d4(i32 %.loc33), !dbg !12
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// CHECK:STDOUT: store i32 %G.call, ptr %m.var, align 4, !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 void @_CF.Main.b88d1103f417c6d4(i32 %x) !dbg !15 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: ret void, !dbg !16
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: define linkonce_odr i32 @_CG.Main.b88d1103f417c6d4(i32 %x) !dbg !17 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: %H.call = call i32 @_CH.Main.b88d1103f417c6d4(i32 %x), !dbg !18
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// CHECK:STDOUT: call void @_CF.Main.b88d1103f417c6d4(i32 %x), !dbg !19
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// CHECK:STDOUT: ret i32 %x, !dbg !20
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: define linkonce_odr i32 @_CH.Main.b88d1103f417c6d4(i32 %x) !dbg !21 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: call void @_CF.Main.b88d1103f417c6d4(i32 %x), !dbg !22
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// CHECK:STDOUT: ret i32 %x, !dbg !23
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// CHECK:STDOUT: }
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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_basic_depth.carbon", directory: "")
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// CHECK:STDOUT: !4 = distinct !DISubprogram(name: "M", linkageName: "_CM.Main", scope: null, file: !3, line: 28, 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: 29, column: 3, scope: !4)
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// CHECK:STDOUT: !8 = !DILocation(line: 30, column: 3, scope: !4)
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// CHECK:STDOUT: !9 = !DILocation(line: 32, column: 5, scope: !4)
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// CHECK:STDOUT: !10 = !DILocation(line: 32, column: 3, scope: !4)
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// CHECK:STDOUT: !11 = !DILocation(line: 33, column: 9, scope: !4)
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// CHECK:STDOUT: !12 = !DILocation(line: 33, column: 7, scope: !4)
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// CHECK:STDOUT: !13 = !DILocation(line: 33, column: 3, scope: !4)
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// CHECK:STDOUT: !14 = !DILocation(line: 28, column: 1, scope: !4)
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// CHECK:STDOUT: !15 = distinct !DISubprogram(name: "F", linkageName: "_CF.Main.b88d1103f417c6d4", scope: null, file: !3, line: 14, type: !5, spFlags: DISPFlagDefinition, unit: !2)
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// CHECK:STDOUT: !16 = !DILocation(line: 14, column: 1, scope: !15)
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// CHECK:STDOUT: !17 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main.b88d1103f417c6d4", scope: null, file: !3, line: 22, type: !5, spFlags: DISPFlagDefinition, unit: !2)
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// CHECK:STDOUT: !18 = !DILocation(line: 23, column: 3, scope: !17)
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// CHECK:STDOUT: !19 = !DILocation(line: 24, column: 3, scope: !17)
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// CHECK:STDOUT: !20 = !DILocation(line: 25, column: 3, scope: !17)
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// CHECK:STDOUT: !21 = distinct !DISubprogram(name: "H", linkageName: "_CH.Main.b88d1103f417c6d4", scope: null, file: !3, line: 17, type: !5, spFlags: DISPFlagDefinition, unit: !2)
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// CHECK:STDOUT: !22 = !DILocation(line: 18, column: 3, scope: !21)
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// CHECK:STDOUT: !23 = !DILocation(line: 19, column: 3, scope: !21)
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