carbon-language/carbon-lang
1
0
Fork 0
mirror of https://github.com/carbon-language/carbon-lang.git synced 2026-09-24 20:50:13 +01:00
Code Issues Packages Projects Releases 10 Wiki Activity
Files
34a2e270f4412df2d829d5bc5892a6248713f321
carbon-lang/toolchain/lower/testdata/function/generic/call_different_specific.carbon
T
Richard Smith 34a2e270f4 Fix C++ code generation in --share-cpp-ast mode (#7605) 
Instead of creating a CodeGenerator per CppDomain, and then crashing in
lowering when we try to consume the same llvm Module multiple times,
create a CodeGenerator for each CppFile within the domain.

For now, we mulitplex all of Clang's ASTConsumer output to all code
generators, which means that any strong external definitions within a
Carbon file (for example, in an inline `Cpp` fragment) will be emitted
to all output files in the same `CppDomain`, resulting in link errors
due to symbol redefinitions. This will be addressed later. But this
should be sufficient for Carbon compilations in which such symbols are
not defined.

We also don't yet attempt to classify which compilations will need C++
code generation, and instead create a clang `CodeGenerator` for every
Carbon file that has C++ imports. For `carbom compile`, only one Carbon
file will need code generation, and yet we still build multiple
`CodeGenerator` objects in general. Fixing this requires more plumbing
from the driver, and this will also be handled in a follow-up.

Assisted-by: Gemini via Antigravity
2026-08-04 17:59:06 +00:00

212 lines
12 KiB
Plaintext
Raw Blame History

// 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/full.carbon
//
// AUTOUPDATE
// TIP: To test this file alone, run:
// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/lower/testdata/function/generic/call_different_specific.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/lower/testdata/function/generic/call_different_specific.carbon
// Builds on call_basic.carbon and call_impl_function.carbon.
// Test that when equivalence is found for the specific fingerprint, we don't
// conclude "equivalent" for all the call graph.
// The two calls to F have the same function type, but the corresponding
// definitions should not be coalesced. The function bodies of the two
// specifics of F look mostly identical: same type for the parameters,
// calling the same A and different specifics of B, with the same function
// type. The difference is discovered in the call graph inside the two B
// specifics, where the pointer values are different, and the calls to the
// two D specifics are to functions with different function types.
fn A[U: Core.Copy](x: U) -> U {
return x;
}
fn D[U: Core.Copy](x: U) -> U {
return x;
}
fn B[U: Core.Copy & Core.Destroy](x: U*) {
D(*x);
}
fn F[T: Core.Copy & Core.Destroy](x: T*) {
A(i32);
B(x);
}
fn M(ptr_i32: i32*, ptr_f64: f64*) {
F(ptr_i32);
F(ptr_f64);
}
// CHECK:STDOUT: ; ---
// CHECK:STDOUT: ; ModuleID = 'call_different_specific.carbon'
// CHECK:STDOUT: source_filename = "call_different_specific.carbon"
// CHECK:STDOUT:
// CHECK:STDOUT: %type.58 = type {}
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CM.Main(ptr %ptr_i32, ptr %ptr_f64) #0 !dbg !4 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: call void @_CF.Main.58016a73bff04416(ptr %ptr_i32), !dbg !11
// CHECK:STDOUT: call void @_CF.Main.fa1f0912a5bbe922(ptr %ptr_f64), !dbg !12
// CHECK:STDOUT: ret void, !dbg !13
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define weak_odr void @"_COp.5e27612b9dd31a14:core.Destroy.Core"(ptr %self) #0 !dbg !14 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !20
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define weak_odr void @"_COp.30d8007fdcc57f83:core.Destroy.Core"(ptr %self) #0 !dbg !21 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !26
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr void @_CF.Main.58016a73bff04416(ptr %x) #0 !dbg !27 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %A.call = call %type.58 @_CA.Main.ee509b43cf4eb3c5(%type.58 zeroinitializer), !dbg !30
// CHECK:STDOUT: call void @_CB.Main.58016a73bff04416(ptr %x), !dbg !31
// CHECK:STDOUT: ret void, !dbg !32
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr void @_CF.Main.fa1f0912a5bbe922(ptr %x) #0 !dbg !33 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %A.call = call %type.58 @_CA.Main.ee509b43cf4eb3c5(%type.58 zeroinitializer), !dbg !36
// CHECK:STDOUT: call void @_CB.Main.fa1f0912a5bbe922(ptr %x), !dbg !37
// CHECK:STDOUT: ret void, !dbg !38
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr %type.58 @_CA.Main.ee509b43cf4eb3c5(%type.58 %x) #0 !dbg !39 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret %type.58 %x, !dbg !44
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr void @_CB.Main.58016a73bff04416(ptr %x) #0 !dbg !45 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.loc34_7.3.temp = alloca i32, align 4, !dbg !48
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc34_7.3.temp), !dbg !48
// CHECK:STDOUT: %.loc34_5.2 = load i32, ptr %x, align 4, !dbg !49
// CHECK:STDOUT: %D.call = call i32 @_CD.Main.5bd8d5767580997a(i32 %.loc34_5.2), !dbg !48
// CHECK:STDOUT: store i32 %D.call, ptr %.loc34_7.3.temp, align 4, !dbg !48
// CHECK:STDOUT: call void @"_COp.5e27612b9dd31a14:core.Destroy.Core"(ptr %.loc34_7.3.temp), !dbg !48
// CHECK:STDOUT: ret void, !dbg !50
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr void @_CB.Main.fa1f0912a5bbe922(ptr %x) #0 !dbg !51 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.loc34_7.3.temp = alloca double, align 8, !dbg !54
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc34_7.3.temp), !dbg !54
// CHECK:STDOUT: %.loc34_5.2 = load double, ptr %x, align 8, !dbg !55
// CHECK:STDOUT: %D.call = call double @_CD.Main.c27b765f2159c9a0(double %.loc34_5.2), !dbg !54
// CHECK:STDOUT: store double %D.call, ptr %.loc34_7.3.temp, align 8, !dbg !54
// CHECK:STDOUT: call void @"_COp.30d8007fdcc57f83:core.Destroy.Core"(ptr %.loc34_7.3.temp), !dbg !54
// CHECK:STDOUT: ret void, !dbg !56
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
// CHECK:STDOUT: declare void @llvm.lifetime.start.p0(ptr captures(none)) #1
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr i32 @_CD.Main.5bd8d5767580997a(i32 %x) #0 !dbg !57 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret i32 %x, !dbg !62
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define linkonce_odr double @_CD.Main.c27b765f2159c9a0(double %x) #0 !dbg !63 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret double %x, !dbg !66
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; uselistorder directives
// CHECK:STDOUT: uselistorder ptr @_CA.Main.ee509b43cf4eb3c5, { 1, 0 }
// CHECK:STDOUT: uselistorder ptr @llvm.lifetime.start.p0, { 1, 0 }
// CHECK:STDOUT:
// CHECK:STDOUT: attributes #0 = { nounwind }
// CHECK:STDOUT: attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
// CHECK:STDOUT:
// CHECK:STDOUT: !llvm.dbg.cu = !{!0}
// CHECK:STDOUT: !llvm.module.flags = !{!2, !3}
// CHECK:STDOUT:
// CHECK:STDOUT: !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
// CHECK:STDOUT: !1 = !DIFile(filename: "call_different_specific.carbon", directory: "")
// CHECK:STDOUT: !2 = !{i32 7, !"Dwarf Version", i32 5}
// CHECK:STDOUT: !3 = !{i32 2, !"Debug Info Version", i32 3}
// CHECK:STDOUT: !4 = distinct !DISubprogram(name: "M", linkageName: "_CM.Main", scope: null, file: !1, line: 42, type: !5, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !8)
// CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
// CHECK:STDOUT: !6 = !{null, !7, !7}
// CHECK:STDOUT: !7 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
// CHECK:STDOUT: !8 = !{!9, !10}
// CHECK:STDOUT: !9 = !DILocalVariable(arg: 1, scope: !4, type: !7)
// CHECK:STDOUT: !10 = !DILocalVariable(arg: 2, scope: !4, type: !7)
// CHECK:STDOUT: !11 = !DILocation(line: 43, column: 3, scope: !4)
// CHECK:STDOUT: !12 = !DILocation(line: 44, column: 3, scope: !4)
// CHECK:STDOUT: !13 = !DILocation(line: 42, column: 1, scope: !4)
// CHECK:STDOUT: !14 = distinct !DISubprogram(name: "Op", linkageName: "_COp.5e27612b9dd31a14:core.Destroy.Core", scope: null, file: !1, line: 43, type: !15, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !18)
// CHECK:STDOUT: !15 = !DISubroutineType(types: !16)
// CHECK:STDOUT: !16 = !{null, !17}
// CHECK:STDOUT: !17 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
// CHECK:STDOUT: !18 = !{!19}
// CHECK:STDOUT: !19 = !DILocalVariable(arg: 1, scope: !14, type: !17)
// CHECK:STDOUT: !20 = !DILocation(line: 43, column: 3, scope: !14)
// CHECK:STDOUT: !21 = distinct !DISubprogram(name: "Op", linkageName: "_COp.30d8007fdcc57f83:core.Destroy.Core", scope: null, file: !1, line: 44, type: !22, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !24)
// CHECK:STDOUT: !22 = !DISubroutineType(types: !23)
// CHECK:STDOUT: !23 = !{null, !7}
// CHECK:STDOUT: !24 = !{!25}
// CHECK:STDOUT: !25 = !DILocalVariable(arg: 1, scope: !21, type: !7)
// CHECK:STDOUT: !26 = !DILocation(line: 44, column: 3, scope: !21)
// CHECK:STDOUT: !27 = distinct !DISubprogram(name: "F", linkageName: "_CF.Main.58016a73bff04416", scope: null, file: !1, line: 37, type: !22, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !28)
// CHECK:STDOUT: !28 = !{!29}
// CHECK:STDOUT: !29 = !DILocalVariable(arg: 1, scope: !27, type: !7)
// CHECK:STDOUT: !30 = !DILocation(line: 38, column: 3, scope: !27)
// CHECK:STDOUT: !31 = !DILocation(line: 39, column: 3, scope: !27)
// CHECK:STDOUT: !32 = !DILocation(line: 37, column: 1, scope: !27)
// CHECK:STDOUT: !33 = distinct !DISubprogram(name: "F", linkageName: "_CF.Main.fa1f0912a5bbe922", scope: null, file: !1, line: 37, type: !22, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !34)
// CHECK:STDOUT: !34 = !{!35}
// CHECK:STDOUT: !35 = !DILocalVariable(arg: 1, scope: !33, type: !7)
// CHECK:STDOUT: !36 = !DILocation(line: 38, column: 3, scope: !33)
// CHECK:STDOUT: !37 = !DILocation(line: 39, column: 3, scope: !33)
// CHECK:STDOUT: !38 = !DILocation(line: 37, column: 1, scope: !33)
// CHECK:STDOUT: !39 = distinct !DISubprogram(name: "A", linkageName: "_CA.Main.ee509b43cf4eb3c5", scope: null, file: !1, line: 25, type: !40, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !42)
// CHECK:STDOUT: !40 = !DISubroutineType(types: !41)
// CHECK:STDOUT: !41 = !{!7, !7}
// CHECK:STDOUT: !42 = !{!43}
// CHECK:STDOUT: !43 = !DILocalVariable(arg: 1, scope: !39, type: !7)
// CHECK:STDOUT: !44 = !DILocation(line: 26, column: 3, scope: !39)
// CHECK:STDOUT: !45 = distinct !DISubprogram(name: "B", linkageName: "_CB.Main.58016a73bff04416", scope: null, file: !1, line: 33, type: !22, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !46)
// CHECK:STDOUT: !46 = !{!47}
// CHECK:STDOUT: !47 = !DILocalVariable(arg: 1, scope: !45, type: !7)
// CHECK:STDOUT: !48 = !DILocation(line: 34, column: 3, scope: !45)
// CHECK:STDOUT: !49 = !DILocation(line: 34, column: 5, scope: !45)
// CHECK:STDOUT: !50 = !DILocation(line: 33, column: 1, scope: !45)
// CHECK:STDOUT: !51 = distinct !DISubprogram(name: "B", linkageName: "_CB.Main.fa1f0912a5bbe922", scope: null, file: !1, line: 33, type: !22, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !52)
// CHECK:STDOUT: !52 = !{!53}
// CHECK:STDOUT: !53 = !DILocalVariable(arg: 1, scope: !51, type: !7)
// CHECK:STDOUT: !54 = !DILocation(line: 34, column: 3, scope: !51)
// CHECK:STDOUT: !55 = !DILocation(line: 34, column: 5, scope: !51)
// CHECK:STDOUT: !56 = !DILocation(line: 33, column: 1, scope: !51)
// CHECK:STDOUT: !57 = distinct !DISubprogram(name: "D", linkageName: "_CD.Main.5bd8d5767580997a", scope: null, file: !1, line: 29, type: !58, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !60)
// CHECK:STDOUT: !58 = !DISubroutineType(types: !59)
// CHECK:STDOUT: !59 = !{!17, !17}
// CHECK:STDOUT: !60 = !{!61}
// CHECK:STDOUT: !61 = !DILocalVariable(arg: 1, scope: !57, type: !17)
// CHECK:STDOUT: !62 = !DILocation(line: 30, column: 3, scope: !57)
// CHECK:STDOUT: !63 = distinct !DISubprogram(name: "D", linkageName: "_CD.Main.c27b765f2159c9a0", scope: null, file: !1, line: 29, type: !40, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !64)
// CHECK:STDOUT: !64 = !{!65}
// CHECK:STDOUT: !65 = !DILocalVariable(arg: 1, scope: !63, type: !7)
// CHECK:STDOUT: !66 = !DILocation(line: 30, column: 3, scope: !63)
// CHECK:STDOUT:
Reference in New Issue View Git Blame Copy Permalink