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53 lines
2.6 KiB
53 lines
2.6 KiB
RUN: rm -rf %t
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REQUIRES: x86-registered-target
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RUN: %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
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RUN: %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
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RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm -debug-info-kind=limited -o - -fmodules -disable-llvm-passes -fmodule-file=%t/foo.pcm %S/Inputs/codegen/use.cpp | FileCheck --check-prefix=BOTH --check-prefix=USE %s
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For want of any better definition, inline asm goes "everywhere" the same as it
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if it were in a header (with the disadvantage that the inline asm will be
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included in the program if the module is used, even if the header containing
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the inline asm is never included - unlike a non-modular build).
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This is inconsistent with how namespace scope static variables are handled -
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where they only appear in the code that includes a header. This functionality
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was implemented to workaround/support the initialization of iostreams
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(implemented as a namespace scope static in the header - only to be provided
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when that specific header is included in the program).
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FOO: module asm "narf"
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USE: module asm "narf"
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FOO: $_Z2f1PKcz = comdat any
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FOO: $_ZN13implicit_dtorD1Ev = comdat any
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USE: $_Z4instIiEvv = comdat any
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USE: $_Z10always_inlv = comdat any
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FOO: $_ZN13implicit_dtorD2Ev = comdat any
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FOO: define weak_odr void @_Z2f1PKcz(i8* %fmt, ...) #{{[0-9]+}} comdat
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FOO: call void @llvm.va_start(i8* %{{[a-zA-Z0-9]*}})
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Test that implicit special members are emitted into the FOO module if they're
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ODR used there, otherwise emit them linkonce_odr as usual in the use.
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FIXME: Proactively instantiate any valid implicit special members to emit them into the module object.
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FOO: define weak_odr void @_ZN13implicit_dtorD1Ev
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FOO: define weak_odr void @_Z4instIfEvv
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FOO: define weak_odr void @_ZN13implicit_dtorD2Ev
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USE: define linkonce_odr void @_ZN20uninst_implicit_dtorD1Ev
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USE: define linkonce_odr void @_Z4instIiEvv
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USE: define linkonce_odr void @_Z10always_inlv
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USE: define linkonce_odr void @_ZN20uninst_implicit_dtorD2Ev
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Modular debug info puts the definition of a class defined in a module in that
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module's object. Users of the module only get a declaration.
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'distinct' is used for definition records (the flags field is empty/unspecified)
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FOO: = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "implicit_dtor"
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Declarations are non-distinct and include the 'DIFlagFwdDecl' flag.
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USE: = !DICompositeType(tag: DW_TAG_structure_type, name: "implicit_dtor", {{.*}}, flags: DIFlagFwdDecl
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