1RUN: rm -rf %t 2REQUIRES: x86-registered-target 3 4RUN: %clang_cc1 -triple=x86_64-linux-gnu -fmodules-codegen -fmodules-debuginfo -x c++ -fmodules -emit-module -fmodule-name=foo %S/Inputs/codegen/foo.modulemap -o %t/foo.pcm 5 6RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm -debug-info-kind=limited -o - %t/foo.pcm | FileCheck --check-prefix=FOO --check-prefix=BOTH %s 7RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm -debug-info-kind=limited -o - -fmodules -fmodule-file=%t/foo.pcm %S/Inputs/codegen/use.cpp | FileCheck --check-prefix=BOTH --check-prefix=USE %s 8 9For want of any better definition, inline asm goes "everywhere" the same as it 10if it were in a header (with the disadvantage that the inline asm will be 11included in the program if the module is used, even if the header containing 12the inline asm is never included - unlike a non-modular build). 13 14This is inconsistent with how namespace scope static variables are handled - 15where they only appear in the code that includes a header. This functionality 16was implemented to workaround/support the initialization of iostreams 17(implemented as a namespace scope static in the header - only to be provided 18when that specific header is included in the program). 19 20FOO: module asm "narf" 21USE: module asm "narf" 22 23FOO: $_Z2f1PKcz = comdat any 24FOO: $_ZN13implicit_dtorD1Ev = comdat any 25USE: $_Z4instIiEvv = comdat any 26FOO: $_ZN13implicit_dtorD2Ev = comdat any 27FOO: define weak_odr void @_Z2f1PKcz(i8* %fmt, ...) #{{[0-9]+}} comdat 28FOO: call void @llvm.va_start(i8* %{{[a-zA-Z0-9]*}}) 29 30Test that implicit special members are emitted into the FOO module if they're 31ODR used there, otherwise emit them linkonce_odr as usual in the use. 32 33FIXME: Proactively instantiate any valid implicit special members to emit them into the module object. 34 35FOO: define weak_odr void @_ZN13implicit_dtorD1Ev 36FOO: define weak_odr void @_Z4instIfEvv 37FOO: define weak_odr void @_ZN13implicit_dtorD2Ev 38 39USE: define linkonce_odr void @_ZN20uninst_implicit_dtorD1Ev 40USE: define linkonce_odr void @_Z4instIiEvv 41USE: define linkonce_odr void @_ZN20uninst_implicit_dtorD2Ev 42 43Modular debug info puts the definition of a class defined in a module in that 44module's object. Users of the module only get a declaration. 45 46'distinct' is used for definition records (the flags field is empty/unspecified) 47FOO: = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "implicit_dtor" 48Declarations are non-distinct and include the 'DIFlagFwdDecl' flag. 49USE: = !DICompositeType(tag: DW_TAG_structure_type, name: "implicit_dtor", {{.*}}, flags: DIFlagFwdDecl 50