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carbon-lang/toolchain/lower/testdata/interop/cpp/template.carbon
T
David Blaikie 773b7136ef Use a single llvm::Module for C++ interop and Carbon IRGen (#6595) 
Some module metadata changed - because rather than linking one module
with one module metadata value (eg: PIC Level 0, or unspecified) and one
module with a different one (PIC level 2, in clang) - we use Clang's
Module as-is, no merging required, so Clang's module metadata sticks
rather than being merged with default values from Carbon.

Also tweaked the name we use for Clang's module name so it matches the
carbon file name.

Otherwise the IR changes seem to be just reorderings - C++ interop goes
first, then Carbon, rather than the other way around.
2026-01-17 00:15:53 +00:00

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// 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/interop/cpp/template.carbon
// TIP: To dump output, run:
// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/lower/testdata/interop/cpp/template.carbon
// --- function_template.h
template<typename T> T identity(T x) { return x; }
class Class {};
// --- call.carbon
library "[[@TEST_NAME]]";
import Cpp library "function_template.h";
fn PassI32(a: i32) -> i32 {
return Cpp.identity(a);
}
fn PassClass(a: Cpp.Class) -> Cpp.Class {
return Cpp.identity(a);
}
// --- variadic.carbon
library "[[@TEST_NAME]]";
import Cpp inline '''
template<typename ...T>
auto foo(int, T...) -> void;
''';
fn Call1() {
//@dump-sem-ir-begin
Cpp.foo(1);
//@dump-sem-ir-end
}
fn Call2() {
//@dump-sem-ir-begin
Cpp.foo(1, 2);
//@dump-sem-ir-end
}
fn Call3() {
//@dump-sem-ir-begin
Cpp.foo(1, 2, 3);
//@dump-sem-ir-end
}
// --- variadic_thunk.carbon
library "[[@TEST_NAME]]";
import Cpp inline '''
class X {};
template<typename ...T>
auto foo(X, T...) -> void;
''';
fn Call1() {
//@dump-sem-ir-begin
Cpp.foo({} as Cpp.X);
//@dump-sem-ir-end
}
fn Call2() {
//@dump-sem-ir-begin
Cpp.foo({} as Cpp.X, 2);
//@dump-sem-ir-end
}
fn Call3() {
//@dump-sem-ir-begin
Cpp.foo({} as Cpp.X, 2, 3);
//@dump-sem-ir-end
}
// CHECK:STDOUT: ; ModuleID = 'call.carbon'
// CHECK:STDOUT: source_filename = "call.carbon"
// CHECK:STDOUT: target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
// CHECK:STDOUT: target triple = "x86_64-unknown-linux-gnu"
// CHECK:STDOUT:
// CHECK:STDOUT: %class.Class = type { i8 }
// CHECK:STDOUT:
// CHECK:STDOUT: $_Z8identityI5ClassET_S1_ = comdat any
// CHECK:STDOUT:
// CHECK:STDOUT: $_Z8identityIiET_S0_ = comdat any
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: alwaysinline mustprogress uwtable
// CHECK:STDOUT: define dso_local void @_Z8identityI5ClassET_S1_.carbon_thunk(ptr noundef %x, ptr noundef %return) #0 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %x.addr = alloca ptr, align 8
// CHECK:STDOUT: %return.addr = alloca ptr, align 8
// CHECK:STDOUT: %agg.tmp = alloca %class.Class, align 1
// CHECK:STDOUT: %undef.agg.tmp = alloca %class.Class, align 1
// CHECK:STDOUT: store ptr %x, ptr %x.addr, align 8, !tbaa !12
// CHECK:STDOUT: store ptr %return, ptr %return.addr, align 8, !tbaa !12
// CHECK:STDOUT: %0 = load ptr, ptr %return.addr, align 8, !tbaa !12
// CHECK:STDOUT: %1 = load ptr, ptr %x.addr, align 8, !tbaa !12
// CHECK:STDOUT: call void @_Z8identityI5ClassET_S1_()
// CHECK:STDOUT: ret void
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: mustprogress nounwind uwtable
// CHECK:STDOUT: define linkonce_odr dso_local void @_Z8identityI5ClassET_S1_() #1 comdat {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %x = alloca %class.Class, align 1
// CHECK:STDOUT: ret void
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define i32 @_CPassI32.Main(i32 %a) #2 !dbg !15 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %identity.call = call i32 @_Z8identityIiET_S0_(i32 %a), !dbg !21
// CHECK:STDOUT: ret i32 %identity.call, !dbg !22
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: mustprogress nounwind uwtable
// CHECK:STDOUT: define linkonce_odr dso_local noundef i32 @_Z8identityIiET_S0_(i32 noundef %x) #1 comdat {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %x.addr = alloca i32, align 4
// CHECK:STDOUT: store i32 %x, ptr %x.addr, align 4, !tbaa !8
// CHECK:STDOUT: %0 = load i32, ptr %x.addr, align 4, !tbaa !8
// CHECK:STDOUT: ret i32 %0
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CPassClass.Main(ptr sret({}) %return, ptr %a) #2 !dbg !23 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: call void @_Z8identityI5ClassET_S1_.carbon_thunk(ptr %a, ptr %return), !dbg !29
// CHECK:STDOUT: ret void, !dbg !30
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: attributes #0 = { alwaysinline mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
// CHECK:STDOUT: attributes #1 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
// CHECK:STDOUT: attributes #2 = { nounwind }
// CHECK:STDOUT:
// CHECK:STDOUT: !llvm.module.flags = !{!0, !1, !2, !3, !4, !5}
// CHECK:STDOUT: !llvm.dbg.cu = !{!6}
// CHECK:STDOUT: !llvm.errno.tbaa = !{!8}
// CHECK:STDOUT:
// CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
// CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
// CHECK:STDOUT: !2 = !{i32 1, !"wchar_size", i32 4}
// CHECK:STDOUT: !3 = !{i32 8, !"PIC Level", i32 2}
// CHECK:STDOUT: !4 = !{i32 7, !"PIE Level", i32 2}
// CHECK:STDOUT: !5 = !{i32 7, !"uwtable", i32 2}
// CHECK:STDOUT: !6 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !7, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
// CHECK:STDOUT: !7 = !DIFile(filename: "call.carbon", directory: "")
// CHECK:STDOUT: !8 = !{!9, !9, i64 0}
// CHECK:STDOUT: !9 = !{!"int", !10, i64 0}
// CHECK:STDOUT: !10 = !{!"omnipotent char", !11, i64 0}
// CHECK:STDOUT: !11 = !{!"Simple C++ TBAA"}
// CHECK:STDOUT: !12 = !{!13, !13, i64 0}
// CHECK:STDOUT: !13 = !{!"p1 _ZTS5Class", !14, i64 0}
// CHECK:STDOUT: !14 = !{!"any pointer", !10, i64 0}
// CHECK:STDOUT: !15 = distinct !DISubprogram(name: "PassI32", linkageName: "_CPassI32.Main", scope: null, file: !7, line: 6, type: !16, spFlags: DISPFlagDefinition, unit: !6, retainedNodes: !19)
// CHECK:STDOUT: !16 = !DISubroutineType(types: !17)
// CHECK:STDOUT: !17 = !{!18, !18}
// CHECK:STDOUT: !18 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
// CHECK:STDOUT: !19 = !{!20}
// CHECK:STDOUT: !20 = !DILocalVariable(arg: 1, scope: !15, type: !18)
// CHECK:STDOUT: !21 = !DILocation(line: 7, column: 10, scope: !15)
// CHECK:STDOUT: !22 = !DILocation(line: 7, column: 3, scope: !15)
// CHECK:STDOUT: !23 = distinct !DISubprogram(name: "PassClass", linkageName: "_CPassClass.Main", scope: null, file: !7, line: 10, type: !24, spFlags: DISPFlagDefinition, unit: !6, retainedNodes: !27)
// CHECK:STDOUT: !24 = !DISubroutineType(types: !25)
// CHECK:STDOUT: !25 = !{!26, !26}
// CHECK:STDOUT: !26 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 8)
// CHECK:STDOUT: !27 = !{!28}
// CHECK:STDOUT: !28 = !DILocalVariable(arg: 1, scope: !23, type: !26)
// CHECK:STDOUT: !29 = !DILocation(line: 11, column: 10, scope: !23)
// CHECK:STDOUT: !30 = !DILocation(line: 11, column: 3, scope: !23)
// CHECK:STDOUT: ; ModuleID = 'variadic.carbon'
// CHECK:STDOUT: source_filename = "variadic.carbon"
// CHECK:STDOUT: target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
// CHECK:STDOUT: target triple = "x86_64-unknown-linux-gnu"
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CCall1.Main() #0 !dbg !12 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: call void @_Z3fooIJEEviDpT_(i32 1), !dbg !15
// CHECK:STDOUT: ret void, !dbg !16
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: declare void @_Z3fooIJEEviDpT_(i32 noundef) #1
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CCall2.Main() #0 !dbg !17 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: call void @_Z3fooIJiEEviDpT_(i32 1, i32 2), !dbg !18
// CHECK:STDOUT: ret void, !dbg !19
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: declare void @_Z3fooIJiEEviDpT_(i32 noundef, i32 noundef) #1
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CCall3.Main() #0 !dbg !20 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: call void @_Z3fooIJiiEEviDpT_(i32 1, i32 2, i32 3), !dbg !21
// CHECK:STDOUT: ret void, !dbg !22
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: declare void @_Z3fooIJiiEEviDpT_(i32 noundef, i32 noundef, i32 noundef) #1
// CHECK:STDOUT:
// CHECK:STDOUT: attributes #0 = { nounwind }
// CHECK:STDOUT: attributes #1 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
// CHECK:STDOUT:
// CHECK:STDOUT: !llvm.module.flags = !{!0, !1, !2, !3, !4, !5}
// CHECK:STDOUT: !llvm.dbg.cu = !{!6}
// CHECK:STDOUT: !llvm.errno.tbaa = !{!8}
// CHECK:STDOUT:
// CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
// CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
// CHECK:STDOUT: !2 = !{i32 1, !"wchar_size", i32 4}
// CHECK:STDOUT: !3 = !{i32 8, !"PIC Level", i32 2}
// CHECK:STDOUT: !4 = !{i32 7, !"PIE Level", i32 2}
// CHECK:STDOUT: !5 = !{i32 7, !"uwtable", i32 2}
// CHECK:STDOUT: !6 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !7, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
// CHECK:STDOUT: !7 = !DIFile(filename: "variadic.carbon", directory: "")
// CHECK:STDOUT: !8 = !{!9, !9, i64 0}
// CHECK:STDOUT: !9 = !{!"int", !10, i64 0}
// CHECK:STDOUT: !10 = !{!"omnipotent char", !11, i64 0}
// CHECK:STDOUT: !11 = !{!"Simple C++ TBAA"}
// CHECK:STDOUT: !12 = distinct !DISubprogram(name: "Call1", linkageName: "_CCall1.Main", scope: null, file: !7, line: 9, type: !13, spFlags: DISPFlagDefinition, unit: !6)
// CHECK:STDOUT: !13 = !DISubroutineType(types: !14)
// CHECK:STDOUT: !14 = !{null}
// CHECK:STDOUT: !15 = !DILocation(line: 11, column: 3, scope: !12)
// CHECK:STDOUT: !16 = !DILocation(line: 9, column: 1, scope: !12)
// CHECK:STDOUT: !17 = distinct !DISubprogram(name: "Call2", linkageName: "_CCall2.Main", scope: null, file: !7, line: 15, type: !13, spFlags: DISPFlagDefinition, unit: !6)
// CHECK:STDOUT: !18 = !DILocation(line: 17, column: 3, scope: !17)
// CHECK:STDOUT: !19 = !DILocation(line: 15, column: 1, scope: !17)
// CHECK:STDOUT: !20 = distinct !DISubprogram(name: "Call3", linkageName: "_CCall3.Main", scope: null, file: !7, line: 21, type: !13, spFlags: DISPFlagDefinition, unit: !6)
// CHECK:STDOUT: !21 = !DILocation(line: 23, column: 3, scope: !20)
// CHECK:STDOUT: !22 = !DILocation(line: 21, column: 1, scope: !20)
// CHECK:STDOUT: ; ModuleID = 'variadic_thunk.carbon'
// CHECK:STDOUT: source_filename = "variadic_thunk.carbon"
// CHECK:STDOUT: target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
// CHECK:STDOUT: target triple = "x86_64-unknown-linux-gnu"
// CHECK:STDOUT:
// CHECK:STDOUT: %class.X = type { i8 }
// CHECK:STDOUT:
// CHECK:STDOUT: @X.val.loc12_12.3 = internal constant {} zeroinitializer
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: alwaysinline mustprogress uwtable
// CHECK:STDOUT: define dso_local void @_Z3fooIJEEv1XDpT_.carbon_thunk(ptr noundef %0) #0 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.addr = alloca ptr, align 8
// CHECK:STDOUT: %agg.tmp = alloca %class.X, align 1
// CHECK:STDOUT: store ptr %0, ptr %.addr, align 8, !tbaa !12
// CHECK:STDOUT: %1 = load ptr, ptr %.addr, align 8, !tbaa !12
// CHECK:STDOUT: call void @_Z3fooIJEEv1XDpT_()
// CHECK:STDOUT: ret void
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: declare void @_Z3fooIJEEv1XDpT_() #1
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: alwaysinline mustprogress uwtable
// CHECK:STDOUT: define dso_local void @_Z3fooIJiEEv1XDpT_.carbon_thunk(ptr noundef %0, i32 noundef %1) #0 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.addr = alloca ptr, align 8
// CHECK:STDOUT: %.addr1 = alloca i32, align 4
// CHECK:STDOUT: %agg.tmp = alloca %class.X, align 1
// CHECK:STDOUT: store ptr %0, ptr %.addr, align 8, !tbaa !12
// CHECK:STDOUT: store i32 %1, ptr %.addr1, align 4, !tbaa !8
// CHECK:STDOUT: %2 = load ptr, ptr %.addr, align 8, !tbaa !12
// CHECK:STDOUT: %3 = load i32, ptr %.addr1, align 4, !tbaa !8
// CHECK:STDOUT: call void @_Z3fooIJiEEv1XDpT_(i32 noundef %3)
// CHECK:STDOUT: ret void
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: declare void @_Z3fooIJiEEv1XDpT_(i32 noundef) #1
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: alwaysinline mustprogress uwtable
// CHECK:STDOUT: define dso_local void @_Z3fooIJiiEEv1XDpT_.carbon_thunk(ptr noundef %0, i32 noundef %1, i32 noundef %2) #0 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.addr = alloca ptr, align 8
// CHECK:STDOUT: %.addr1 = alloca i32, align 4
// CHECK:STDOUT: %.addr2 = alloca i32, align 4
// CHECK:STDOUT: %agg.tmp = alloca %class.X, align 1
// CHECK:STDOUT: store ptr %0, ptr %.addr, align 8, !tbaa !12
// CHECK:STDOUT: store i32 %1, ptr %.addr1, align 4, !tbaa !8
// CHECK:STDOUT: store i32 %2, ptr %.addr2, align 4, !tbaa !8
// CHECK:STDOUT: %3 = load ptr, ptr %.addr, align 8, !tbaa !12
// CHECK:STDOUT: %4 = load i32, ptr %.addr1, align 4, !tbaa !8
// CHECK:STDOUT: %5 = load i32, ptr %.addr2, align 4, !tbaa !8
// CHECK:STDOUT: call void @_Z3fooIJiiEEv1XDpT_(i32 noundef %4, i32 noundef %5)
// CHECK:STDOUT: ret void
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: declare void @_Z3fooIJiiEEv1XDpT_(i32 noundef, i32 noundef) #1
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CCall1.Main() #2 !dbg !15 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.loc12_12.2.temp = alloca {}, align 8, !dbg !18
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc12_12.2.temp), !dbg !18
// CHECK:STDOUT: call void @llvm.memcpy.p0.p0.i64(ptr align 1 %.loc12_12.2.temp, ptr align 1 @X.val.loc12_12.3, i64 0, i1 false), !dbg !18
// CHECK:STDOUT: call void @_Z3fooIJEEv1XDpT_.carbon_thunk(ptr %.loc12_12.2.temp), !dbg !19
// CHECK:STDOUT: ret void, !dbg !20
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CCall2.Main() #2 !dbg !21 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.loc18_12.2.temp = alloca {}, align 8, !dbg !22
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc18_12.2.temp), !dbg !22
// CHECK:STDOUT: call void @llvm.memcpy.p0.p0.i64(ptr align 1 %.loc18_12.2.temp, ptr align 1 @X.val.loc12_12.3, i64 0, i1 false), !dbg !22
// CHECK:STDOUT: call void @_Z3fooIJiEEv1XDpT_.carbon_thunk(ptr %.loc18_12.2.temp, i32 2), !dbg !23
// CHECK:STDOUT: ret void, !dbg !24
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CCall3.Main() #2 !dbg !25 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %.loc24_12.2.temp = alloca {}, align 8, !dbg !26
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc24_12.2.temp), !dbg !26
// CHECK:STDOUT: call void @llvm.memcpy.p0.p0.i64(ptr align 1 %.loc24_12.2.temp, ptr align 1 @X.val.loc12_12.3, i64 0, i1 false), !dbg !26
// CHECK:STDOUT: call void @_Z3fooIJiiEEv1XDpT_.carbon_thunk(ptr %.loc24_12.2.temp, i32 2, i32 3), !dbg !27
// CHECK:STDOUT: ret void, !dbg !28
// 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)) #3
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
// CHECK:STDOUT: declare void @llvm.memcpy.p0.p0.i64(ptr noalias writeonly captures(none), ptr noalias readonly captures(none), i64, i1 immarg) #4
// CHECK:STDOUT:
// CHECK:STDOUT: ; uselistorder directives
// CHECK:STDOUT: uselistorder ptr @llvm.lifetime.start.p0, { 2, 1, 0 }
// CHECK:STDOUT: uselistorder ptr @llvm.memcpy.p0.p0.i64, { 2, 1, 0 }
// CHECK:STDOUT:
// CHECK:STDOUT: attributes #0 = { alwaysinline mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
// CHECK:STDOUT: attributes #1 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
// CHECK:STDOUT: attributes #2 = { nounwind }
// CHECK:STDOUT: attributes #3 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
// CHECK:STDOUT: attributes #4 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
// CHECK:STDOUT:
// CHECK:STDOUT: !llvm.module.flags = !{!0, !1, !2, !3, !4, !5}
// CHECK:STDOUT: !llvm.dbg.cu = !{!6}
// CHECK:STDOUT: !llvm.errno.tbaa = !{!8}
// CHECK:STDOUT:
// CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
// CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
// CHECK:STDOUT: !2 = !{i32 1, !"wchar_size", i32 4}
// CHECK:STDOUT: !3 = !{i32 8, !"PIC Level", i32 2}
// CHECK:STDOUT: !4 = !{i32 7, !"PIE Level", i32 2}
// CHECK:STDOUT: !5 = !{i32 7, !"uwtable", i32 2}
// CHECK:STDOUT: !6 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !7, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
// CHECK:STDOUT: !7 = !DIFile(filename: "variadic_thunk.carbon", directory: "")
// CHECK:STDOUT: !8 = !{!9, !9, i64 0}
// CHECK:STDOUT: !9 = !{!"int", !10, i64 0}
// CHECK:STDOUT: !10 = !{!"omnipotent char", !11, i64 0}
// CHECK:STDOUT: !11 = !{!"Simple C++ TBAA"}
// CHECK:STDOUT: !12 = !{!13, !13, i64 0}
// CHECK:STDOUT: !13 = !{!"p1 _ZTS1X", !14, i64 0}
// CHECK:STDOUT: !14 = !{!"any pointer", !10, i64 0}
// CHECK:STDOUT: !15 = distinct !DISubprogram(name: "Call1", linkageName: "_CCall1.Main", scope: null, file: !7, line: 10, type: !16, spFlags: DISPFlagDefinition, unit: !6)
// CHECK:STDOUT: !16 = !DISubroutineType(types: !17)
// CHECK:STDOUT: !17 = !{null}
// CHECK:STDOUT: !18 = !DILocation(line: 12, column: 11, scope: !15)
// CHECK:STDOUT: !19 = !DILocation(line: 12, column: 3, scope: !15)
// CHECK:STDOUT: !20 = !DILocation(line: 10, column: 1, scope: !15)
// CHECK:STDOUT: !21 = distinct !DISubprogram(name: "Call2", linkageName: "_CCall2.Main", scope: null, file: !7, line: 16, type: !16, spFlags: DISPFlagDefinition, unit: !6)
// CHECK:STDOUT: !22 = !DILocation(line: 18, column: 11, scope: !21)
// CHECK:STDOUT: !23 = !DILocation(line: 18, column: 3, scope: !21)
// CHECK:STDOUT: !24 = !DILocation(line: 16, column: 1, scope: !21)
// CHECK:STDOUT: !25 = distinct !DISubprogram(name: "Call3", linkageName: "_CCall3.Main", scope: null, file: !7, line: 22, type: !16, spFlags: DISPFlagDefinition, unit: !6)
// CHECK:STDOUT: !26 = !DILocation(line: 24, column: 11, scope: !25)
// CHECK:STDOUT: !27 = !DILocation(line: 24, column: 3, scope: !25)
// CHECK:STDOUT: !28 = !DILocation(line: 22, column: 1, scope: !25)
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